Vertical type vacuum packing machine

Description

BACKGROUND OF THE INVENTION

1. Field of the Invention

This invention relates to a vertical type packing machine, especially to a vertical type packing machine in which film-bag delivering, material feeding, evacuation and film-bag sealing processes are conducted in vertically conveying mode, and in which the vertically delivered object to be packed by vacuum packing machine can be well packed through cutting, evacuation and sealing procedures.

2. Brief Description of the Prior Art

Generally, vacuum packing machine is mainly used to evacuate the air within a film-bag, and to seal the film-bag by hot-press or low-frequency heating such that the object is in vacuum packed state to keep things fresh and to extend storage time. However, ordinary vacuum packing machine according to the above procedures basically comprises: a conveying device for conveying film-bags containing object to be packed, a stage for loading film-bags, a vibratory device for exhausting air and for keeping the object in flat, a mechanism for holding the film-bags flat and an evacuation machine etc. Most of the vacuum packing machine substantially utilizes a design having a horizontal frame-base and the abovementioned devices are arranged on the frame-base in order so as to form a packing machine having automatic cycle.

Inasmuch as the above vacuum packing machine is a horizontal type design, the whole assembly has a bulk volume which takes a lot of space in implementation. In addition, the air drawn out from the interior cannot go smoothly by the air-exhaust action conducted by the vibratory mechanism such that evacuation is conducted in incomplete sealing state of the bag-opening. This will cause air inclusion in the packing bag. Accordingly, the product quality is deteriorated.

In view of the above facts, inventor of the present invention provides a vertical type vacuum packing machine according to the research and improvement conducted on shortcomings of the existing structure based on his abundant experience of R&D and manufacturing in relevant field so as to achieve the goal of obtaining better practical value in implementation.

SUMMARY OF THE INVENTION

In order to achieve the above object, this invention provides a vertical type vacuum packing machine in which the vertically delivered object to be packed by vacuum packing machine can be well packed through cutting, evacuation and sealing procedures.

The object and the effectiveness of the vertical type vacuum packing machine of the present invention is realized by the following technology.

A vertical type packing machine, in which film-bag delivering, material feeding, evacuation and film-bag sealing processes are conducted in vertically conveying mode, wherein the object to be packed, after weight control through the weighing device, is fed into the vacuum packing device through an inlet hopper having a packing film-bag inserted from the top end thereof, the packing film-bag being cut by a primary cutting section of a blade set in primary mould-closing state of the vacuum packing device so as to produce an bag-opening, the air within the film-bag being drawn out to ambience by the evacuation process conducted in complete mould-closing state, simultaneously the bag-opening of the precedent packing film-bag and the bottom of the subsequent packing film-bag being sealed separately, then a cutting process being conducted between the sealed bag-opening of the precedent packing film-bag and the sealed bottom of the subsequent packing film-bag by a secondary cutting section of the blade set, finally the mould being opened so that the vacuum packing of material delivered in vertical direction is achieved.

The vacuum packing machine of the present invention further comprises a weighing device for setting and controlling the weight of object to be packed, by which the weight of material delivered to the pack each time substantially reaches the average weight of each object-containing pack through the weight control by the flow rate detection meter, the timer or the scale etc. before the object to be packed is fed into the inlet hopper.

The vacuum packing machine of the present invention is further provided with a vibratory mechanism which generates vibration on a disk body contacted with the object to be packed so as to draw out the air within the film-bag used for packing the object. Further cooperating with the evacuation process, the air in the pack can be drawn out completely so as to achieve better packing effect.

The vacuum packing machine of the present invention is further provided, on the case body of the vacuum packing device, with a sensor for detecting the entry of packing film-bag into the case body so that the case body can conduct mould-closing action subsequently.

The vacuum packing machine of the present invention is further provided with at least one inlet hopper on the material incoming device, and the film-bag delivering device introduces packing film-bag according to the quantity of inlet hopper. In this manner, the vacuum packing machine of this invention can conduct multi-pack simultaneous packing each time.

BRIEF DESCRIPTION OF THE DRAWINGS

FIG. 1 is a perspective exploded view showing the appearance of the vertical type vacuum packing machine of the present invention.

FIG. 2 is a schematic front view showing the entire vertical type vacuum packing machine of the present invention.

FIG. 3 is a schematic side view showing the entire vertical type vacuum packing machine of the present invention.

FIG. 4 is a schematic view showing the material incoming action of vacuum packing machine of the present invention.

FIG. 5 is a schematic view showing the action of primary mould-closing of the present invention.

FIG. 6 is a schematic top view showing the action of primary mould-closing of the present invention.

FIG. 7 is a schematic view showing the action of opening-cutting of the blade set of the present invention.

FIG. 8 is a schematic view showing the bag-opening of the blade set of the present invention.

FIG. 9 is a schematic view showing the formed bag-opening of the present invention.

FIG. 10 is a schematic view showing the action of evacuation of the present invention.

FIG. 11 is a schematic view showing the actions of opening sealing, bottom sealing and severing of the present invention.

FIG. 12 is a schematic top view showing the severing action of the blade set of the present invention.

FIG. 13 is a schematic view showing the state of mould-opening of the present invention.

FIG. 14 is a schematic view showing another embodiment of the blade set of the present invention.

DETAILED DESCRIPTION OF PREFERRED EMBODIMENTS

The objects, the technical contents and the expected effectiveness of the present invention will become more apparent from the detailed description of the preferred embodiment in conjunction with the accompanying drawings.

FIGS. 1 to 4 are perspective and top schematic views respectively showing a vertical type vacuum packing machine of the present invention. As shown in these figures, the vertical type vacuum packing machine essentially conducts film-bag delivering, material feeding, evacuation and film-bag sealing procedures in vertically conveying mode so as to achieve vacuum packing. The vertical type vacuum packing machine of the present invention essentially comprises:

a material incoming device (1) which is an inlet hopper (11) provided at the upper side of the frame (10);

a weighing device (2) oppositely disposed at the upper side of the inlet hopper (11), which is a mechanism, for example, a flow rate detector, a timer or a scale, to weigh the object to be packed each time;

a film-bag delivering device (3) which is a film-bag roller (31), having a packing film-bag (30) wrapped on it, provided on the frame-base (10), the film-bag roller (31) introducing a packing film-bag (30) to the inlet hopper (11) for accommodating the weighed object to be packed;

a vacuum packing device (4) oppositely disposed at the lower side of the inlet device (1) for receiving the packing film-bag (30) already filled with object to be packed, vacuum packing device (4) being provided with a case body (41) having a left half (41a) and a right half (41b) capable of closing with each other, an evacuation device and a vibratory mechanism (40) being provide within the case body (41) which is also provided with a blade set (42) having a primary cutting section (421) for producing a bag-opening of the packing film-bag (30) and a secondary cutting section (422) for the severing of the packing film-bag (30), a first sealing blade (43) for sealing the bottom of the subsequent packing film-bag (30) and a second sealing blade (44) for sealing the bag-opening of the precedent packing film-bag (30) being provided at the upper and lower ends of the blade set (42) respectively.

FIGS. 2 to 13 are schematic views showing the actions of the vertical type vacuum packing machine of the present invention. As shown in these figures, when the machine is operated, the object to be packed is filled in the weighing device (2) and the weight of each pack is measured by the flow rate detecting meter, the timer or the scale etc. based on the weight of each pack set by the weighing device (2), then the weighed object to be packed is dropped into the material incoming device (1) in which the inlet hopper (11) is inserted with a packing film-bag (30) unwounded from the film-bag roller (31) of the film-bag delivering device (3). In some cases, the material incoming device (1) on the frame-base (10) can also installed more than one inlet hopper (11), so the film-bag delivering device (3) has to introduce corresponding numbers of packing film-bags (30) with respect to the quantity of the inlet hopper (11). In turn, the weighed object to be packed is dropped into the inlet hopper (11) first and then filled into the packing film-bag (30) with bottom sealed (in the initial usage, the bottom of said packing film-bag (30) is sealed at first). Then, the packing film-bag (30) filled with object is dropped in the vacuum packing device (4). A sensor (411) for sensing the entry of a packing film-bag into the case body (41) is provided on the case body (41) of the vacuum packing device (4). When sensor (411) receives a sensing signal, the left and the right halves (41a), (41b) of the case body (41) conduct primary mould-closing causing the blade set (42) within the case body (41) to present an extending state of the first section. At this moment, the primary cutting section (421) of the blade set (42) is used to produce a bag-opening on the surface of the packing film-bag (30) for air-exhaust. Subsequently, the packing film-bag loaded with object to be packed is abutted with the vibratory mechanism (40) which has a disk body (401) for abutment with the packing film-bag loaded with object to be packed. The disk body (401) is driven by a power source (402) to generate vibration and to conduct air-exhaust. At the same time, further cooperating with the evacuation action under complete mould-closing state, the air within the packing film-bag (30) is exhausted to the ambience through the bag-opening. Simultaneously, the first and the second sealing blade (43), (44) at the upper and lower ends of the blade set (42) conduct the bottom-sealing for the subsequent packing film-bag (30) and the opening-sealing for the precedent packing film-bag (30) respectively. At the completion of the bottom-sealing and opening-sealing actions, the blade set (42) also extends its secondary cutting section (422) out to conduct severing action between the sealed opening of the preceding packing film-bag (30) and the sealed bottom of the subsequent packing film-bag (30) so that the vacuum packing of the preceding packing film-bag (30) and the bottom-sealing of the subsequent packing film-bag (30) are thus finished. Finally, the vacuum packing device (4) conduct mould-opening to cause the stripping of the product. Repeated operation in this manner, vacuum packing operation in mass production can be achieved by the vertical type vacuum packing machine.

FIG. 14 is a schematic view showing the state of another implementation of the blade set of the vertical type vacuum packing machine of the present invention. As shown in the figure, aside from the design of aforementioned two sections type of producing a bag-opening and severing, the blade set (42) can be designed to have a primary cutter (423) directed for producing the bag-opening of the packing film-bag (30) (can also be a needle type primary blade which makes bag-opening in dot or segment pattern) and a secondary cutter (424) directed for the severing of the packing film-bag (30), which are formed as a pair. In this manner, the bag-opening producing and the severing actions can be conducted on the packing film-bag (30) by a double-cutter set.

The abovementioned embodiments and drawings are not used to limit of the scope of the present invention. Equivalent variations and modifications made by the person skilled in the art without departing from the spirit and scope of the present invention are still considered to be within the scope of the present invention.

Based on the foregoing, the vertical type vacuum packing machine of the present invention has the following advantages when comparing with the conventional structure.

• 1. In the vertical type vacuum packing machine of the present invention, the material incoming device, the weighing device, the film-bag delivering device and the vacuum packing device are provided and linked in vertical arrangement mode such that the whole frame can achieve downsizing and space saving effects.
• 2. In the vertical type vacuum packing machine of the present invention, the object to be packed can attain vacuum packing effect by the design of the vacuum packing device such that the packed object can avoid from decaying due to contact with air, thus, long-term storage of the object is possible.
• 3. In the vertical type vacuum packing machine of the present invention, a blade set having a primary cutting section and a secondary cutting section is provided in the vacuum packing device such that the blade set can conduct a two-step blade-feeding directing to the forming of bag-opening and the severing respectively. Hence, the air-exhaust action by evacuation and the severing action of the packing film-bag can be realized.
• 4. In the vertical type vacuum packing machine of the present invention, a sensor for detecting the entry of packing film-bag into the case body is provided on the case body of the vacuum packing device so that the case body can immediately conduct mould-closing action to achieve the procedure of consistent operation.
• 5. In the vertical type vacuum packing machine of the present invention, the material incoming device can also installed more than one inlet hopper, so the film-bag delivering device introduces corresponding numbers of packing film-bags with respect to the quantity of the inlet hopper. Hence, the vacuum packing machine can conduct multi-pack simultaneous packing each time.
• 6. In the vertical type vacuum packing machine of the present invention, a vibratory mechanism, having a disk body driven by a power source and abutted with the packed object, is provided on the case body of the vacuum packing device for exhausting the air within the packing film-bag of the object to be packed. Therefore, under the state of cooperating with the evacuation, the air within the packed object is completely drawn out to the ambience so as to achieve better packing effect.

Summing up above, the above embodiment of this invention can reach expected effectiveness, and the specific configurations disclosed herein have yet not seen in the prior art of the same category of product, even has not been opened to the public before application.