Lower die gas circuit structure of packaging machine

Abstract

The utility model relates to the technical field of packaging machines, and discloses a lower die gas circuit structure of a packaging machine, which comprises a workbench, the workbench is provided with a bottom plate used for abutting against the lower part of a lower die seat, and the workbench is provided with an inflating mechanism used for inflating a lower die inflating channel and an air extracting mechanism used for extracting air from a lower die air extracting channel. The effect of improving the packaging efficiency of the packaging machine is achieved.

Description

Technical Field

[0001] This application relates to the technical field of packaging machines, and in particular to a lower mold air passage structure for a packaging machine. Background Technology

[0002] As people's living standards continue to improve, the demand for convenience foods is also increasing. After the food is placed in the tray, the tray can be sealed with film using a packaging machine.

[0003] A packaging machine in the related art includes a worktable, on which an upper mold mechanism and a lower mold mechanism are arranged. The upper mold mechanism has an upper mold inflation channel and an upper mold deflating channel, and is equipped with an inflation mechanism and a deflating mechanism. The lower mold mechanism includes a lower mold base, on which a lower mold inflation channel and a lower mold deflating channel are arranged.

[0004] The upper mold mechanism also has an inflation connection channel and an air extraction connection channel. One end of the inflation connection channel is connected to the upper mold inflation channel, and the other end of the inflation connection channel is connected to the lower mold inflation channel when the upper mold mechanism and the lower mold mechanism are closed. One end of the air extraction connection channel is connected to the upper mold air extraction channel, and the other end of the air extraction connection channel is connected to the lower mold air extraction channel when the upper mold mechanism and the lower mold mechanism are closed.

[0005] The packaging machines described above only have an inflation mechanism and an exhaust mechanism on the upper mold mechanism. During the exhaust process, the gas inside the lower mold base needs to pass through the upper mold mechanism before being discharged; during the inflation process, the gas to be filled into the lower mold base also needs to pass through the upper mold mechanism first. Therefore, the time for the inflation and exhaust processes of the packaging machine is increased, reducing the packaging efficiency of the packaging machine. Utility Model Content

[0006] In order to improve the packaging efficiency of packaging machines, this application provides a lower mold air passage structure for a packaging machine.

[0007] This application provides a lower mold air passage structure for a packaging machine, which adopts the following technical solution:

[0008] A lower mold air passage structure for a packaging machine includes a worktable, a base plate for abutting against the lower mold base, an inflation mechanism for inflating the lower mold inflation channel and an air extraction mechanism for extracting air from the lower mold extraction channel.

[0009] By adopting the above technical solution, an independent air extraction mechanism and an air inflation mechanism are set on the lower mold mechanism, so that the lower mold mechanism does not need to rely on the air passage structure of the upper mold mechanism in the air extraction and inflation processes, thus simplifying the structure of the upper mold mechanism. The air passage structure of the lower mold mechanism and the air passage structure of the upper mold mechanism are started simultaneously, which can shorten the packaging time of the packaging machine and improve the packaging efficiency of the packaging machine.

[0010] Optionally, the lower end face of the base plate is provided with a first mounting hole, the inflation mechanism includes an inflation pipe passing through the workbench and an inflation connector provided on the inflation pipe, the upper end face of the inflation pipe is provided with an inflation ring, the inflation mechanism can be connected to an inflation device, and the lower mold base is provided with an inflation channel that can communicate with the first mounting hole.

[0011] By adopting the above technical solution, after the base plate abuts against the lower mold base, the inflation equipment inflates the inflation joint, so that the gas enters the lower mold base through the inflation pipe, thereby realizing the inflation process of the lower mold base.

[0012] Optionally, the upper surface of the base plate is provided with a mounting groove, which communicates with the first mounting hole. A washer and a mounting joint are provided in the mounting groove, and the mounting joint passes through the washer and is threadedly connected to the inflation ring.

[0013] By adopting the above technical solution, the installation connector, gasket and inflation ring are connected to make the inflation tube and the base plate a whole, so that the inflation tube and the base plate can move synchronously.

[0014] Optionally, the upper end face of the mounting joint is provided with a mounting ring groove, and a sealing ring that can abut against the lower mold base is provided in the mounting ring groove.

[0015] By adopting the above technical solution, when the base plate abuts against the lower mold base, the sealing ring will also abut against the lower mold base and undergo elastic deformation. The sealing ring can reduce the probability of gas leakage during the inflation process.

[0016] Optionally, the upper end face of the base plate is provided with a first sealing ring groove surrounding the mounting groove, and a first sealing ring block is provided in the first sealing ring groove.

[0017] By adopting the above technical solution, when the base plate abuts against the lower mold base, the first sealing ring block will abut against the lower mold base and generate elastic deformation, thereby improving the sealing performance between the base plate and the lower mold base.

[0018] Optionally, the inflation tube is fitted with a limiting ring located above the worktable, and the limiting ring is capable of abutting against the upper surface of the worktable.

[0019] By adopting the above technical solution, when the limiting ring comes into contact with the worktable during the descent of the base plate and the inflation tube, the descent of the inflation tube and the base plate can be restricted, thus playing a limiting role.

[0020] Optionally, the inner wall of the limiting ring is provided with an operating ring groove, and an elastic clamping ring is provided in the operating ring groove. The clamping ring is sleeved on the outside of the inflation tube and abuts against the inflation tube.

[0021] By adopting the above technical solution, the limiting ring and the clamping ring move together along the length of the inflation tube. The force generated by the clamping ring clamps the inflation tube, making it difficult for the limiting ring to move on the inflation tube, thus controlling the lifting and lowering stroke of the inflation tube.

[0022] Optionally, the workbench is provided with a second through hole, and the air extraction mechanism includes an air extraction pipe passing through the second through hole and an air extraction connector provided on the air extraction pipe. The air extraction connector can be connected to an air extraction device. The lower end face of the base plate is provided with a second mounting hole for inserting the air extraction pipe, and the lower end face of the lower mold base is provided with an air extraction channel that can communicate with the second mounting hole.

[0023] By adopting the above technical solution, after the base plate abuts against the lower mold base, the air extraction equipment extracts air from the air extraction connector, so that the air in the lower mold base passes through the air extraction pipe and the air extraction connector, thereby removing the air from the lower mold base, thus realizing the air extraction process of the lower mold base.

[0024] Optionally, the upper end face of the base plate is provided with a second sealing ring groove surrounding the second mounting hole, and a second sealing ring block is provided in the second sealing ring groove.

[0025] By adopting the above technical solution, when the base plate abuts against the lower mold base, the second sealing ring block deforms, thereby improving the sealing performance between the base plate and the lower mold base.

[0026] In summary, this application includes the following beneficial technical effects:

[0027] By setting independent air extraction and inflation mechanisms on the lower mold mechanism, the lower mold mechanism does not need to rely on the air passage structure of the upper mold mechanism during the air extraction and inflation processes, thus simplifying the structure of the upper mold mechanism. The air passage structures of the lower mold mechanism and the upper mold mechanism are activated simultaneously, which can shorten the packaging time of the packaging machine and improve the packaging efficiency. Attached Figure Description

[0028] To more clearly illustrate the technical solutions in the embodiments of this application, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0029] Figure 1 This is a schematic diagram of the overall structure when the lower mold mechanism is placed on the bottom plate;

[0030] Figure 2 This is a side view of the lower mold mechanism placed on the bottom plate;

[0031] Figure 3 It is along Figure 2A partial sectional view of line AA in the middle;

[0032] Figure 4 It is along Figure 2 A partial sectional view of the BB line.

[0033] Reference numerals: 1. Workbench; 11. First through hole; 12. Second through hole; 2. Base plate; 21. Mounting groove; 22. First mounting hole; 23. Mounting connector; 231. Mounting ring groove; 232. Sealing ring; 24. Washer; 25. Second mounting hole; 26. First sealing ring groove; 261. First sealing ring block; 27. Second sealing ring groove; 271. Second sealing ring block; 3. Inflation mechanism; 31. Inflation pipe; 32. Inflation connector; 33. Inflation ring; 4. Vacuuming mechanism; 41. Vacuuming pipe; 42. Vacuuming connector; 5. Limiting ring; 51. Operating ring groove; 52. Clamping ring; 6. Lower mold base; 61. Inflation channel; 62. Vacuuming channel. Detailed Implementation

[0034] The following is in conjunction with the appendix Figure 1-4 This application will be described in further detail.

[0035] This embodiment discloses a lower mold air passage structure for a packaging machine. (Refer to...) Figure 1 A lower mold air passage structure for a packaging machine includes a worktable 1, a base plate 2, an inflation mechanism 3, and an air extraction mechanism 4.

[0036] Reference Figure 1 and Figure 2 The inflation mechanism 3 is mounted on the workbench 1 and is used to inflate the lower mold base 6. The inflation mechanism 3 includes an inflation pipe 31 and an inflation connector 32.

[0037] Reference Figure 3 The workbench 1 has a first through hole 11 through which the inflation tube 31 can pass. A limiting ring 5 is fitted over the inflation tube 31, and the limiting ring 5 is located above the workbench 1. The maximum diameter of the limiting ring 5 is larger than the inner diameter of the insertion hole on the workbench 1 through which the inflation tube 31 passes. When the limiting ring 5 abuts against the upper surface of the workbench 1, it restricts the descent of the inflation tube 31.

[0038] Reference Figure 3 The limiting ring 5 has an operating hole through which the inflation tube can pass. The limiting ring 5 also has an operating ring groove 51 that surrounds and communicates with the operating hole. A clamping ring 52, which is elastic, is disposed within the operating ring groove 51 and fits over the inflation tube 31. By adjusting the position of the limiting ring 51 on the inflation tube 31, the force generated by the deformation of the clamping ring 52 clamps the inflation tube 31, fixing the position of the limiting ring 51 and preventing it from moving.

[0039] Reference Figure 3 The upper surface of the base plate 2 is provided with a mounting groove 21, and the bottom wall of the mounting groove 21 is provided with a first mounting hole 22. An inflation ring 33 is fixedly connected to the upper surface of the inflation tube 31, and the inflation ring 33 can be inserted into the first mounting hole 22.

[0040] Reference Figure 3 The mounting groove 21 is provided with a mounting connector 23 and a washer 24. The mounting connector 23 passes through the washer 24 and is inserted into the first mounting hole 22. In this application, one end of the mounting connector 23 is threaded into the inflation tube 31. The mounting connector 23 and the inflation tube 31 cooperate to connect the inflation tube 31 and the base plate 2 as one unit, so that the two can move together.

[0041] Reference Figure 3 The upper end face of the mounting joint 23 has a mounting ring groove 231, which surrounds the opening on the mounting joint 23. A sealing ring 232 is provided inside the mounting ring groove 231, and the sealing ring 232 is made of a deformable material. When the upper end face of the base plate 2 abuts against the lower mold base 6, the sealing ring 232 also contacts the lower mold base 6 and deforms, which helps to improve the sealing performance between the mounting joint 23 and the lower mold base 6.

[0042] Reference Figure 1 and Figure 2 An inflation connector 32 is mounted on an inflation pipe 31 and is located below the workbench 1. The end of the inflation connector 32 furthest from the inflation pipe 31 is connected to an inflation device.

[0043] Reference Figure 1 and Figure 4 An air extraction mechanism 4 is mounted on the worktable 1 and is used to extract air from the lower mold base 6. The air extraction mechanism 4 includes an air extraction pipe 41 and an air extraction connector 42. A second through hole 12 is provided on the worktable 1, through which the air extraction pipe 41 can pass. A second mounting hole 25 is provided on the upper end surface of the base plate 2. The upper end of the air extraction pipe 41 is inserted into the second mounting hole 25.

[0044] Reference Figure 1 and Figure 4 The air extraction connector 42 is mounted on the air inlet pipe 31 and is located below the workbench 1. The end of the air extraction connector 42 away from the air extraction pipe 41 is connected to the air extraction device.

[0045] Reference Figure 3 and Figure 4 The upper end face of the base plate 2 is provided with a first sealing ring groove 26 and a second sealing ring groove 27. The first sealing ring groove 26 surrounds the mounting groove 21, and the second sealing ring groove 27 surrounds the second sealing ring groove 27.

[0046] Reference Figure 3 and Figure 4A first sealing ring block 261 is provided in the first sealing ring groove 26. A second sealing ring block 271 is provided in the second sealing ring groove 27. Both the first sealing ring block 261 and the second sealing ring block 271 are made of deformable material. When the base plate 2 abuts against the lower end face of the lower mold base 6, both the first sealing ring block 261 and the second sealing ring block 271 come into contact with the lower mold base 6, causing both the first sealing ring block 261 and the second sealing ring block 271 to deform, thereby improving the sealing performance between the base plate 2 and the lower mold base 6.

[0047] The implementation principle of the lower mold air passage structure of a packaging machine according to an embodiment of this application is as follows: the base plate 2 abuts against the lower mold base 6, so that the mounting joint 23 is connected to the inflation channel 61 on the lower mold base 6, and the second mounting hole 25 is connected to the extraction channel 62 on the lower mold base 6. When the extraction device is started, the lower mold base 6 can be extracted. When the inflation device is started, the lower mold base 6 can be inflated. The inflation process of the lower mold base 6 does not need to pass through the upper mold mechanism, which has the advantages of short stroke and high efficiency.

[0048] Unless otherwise defined, the technical or scientific terms used in this application shall have the ordinary meaning understood by one of ordinary skill in the art to which this application pertains. The terms "first," "second," "third," and similar terms used in this application specification and claims do not indicate any order, quantity, or importance, but are merely used to distinguish different components. The terms "an" or "a" and similar terms do not indicate a quantity limitation, but rather indicate the presence of at least one. The terms "comprising" or "including" and similar terms mean that the elements or objects preceding "comprising" or "including" encompass the elements or objects listed following "comprising" or "including" and their equivalents, and do not exclude other elements or objects. "Above," "below," "left," "right," etc., are used only to indicate relative positional relationships; when the absolute position of the described object changes, the relative positional relationship may also change accordingly.

[0049] The above description is only a preferred embodiment of this application and is not intended to limit this application. Any modifications, equivalent substitutions, improvements, etc., made within the design concept of this application should be included within the protection scope of this application.

Claims

1. A lower mold air passage structure for a packaging machine, comprising a worktable (1), characterized in that: The workbench (1) is provided with a base plate (2) for abutting against the lower mold base (6) below. The workbench (1) is provided with an inflation mechanism (3) for inflating the lower mold inflation channel and an air extraction mechanism (4) for extracting air from the lower mold extraction channel. The bottom plate (2) has a first mounting hole (22) on its lower end face. The inflation mechanism (3) includes an inflation pipe (31) passing through the workbench (1) and an inflation connector (32) on the inflation pipe (31). An inflation ring (33) is provided on the upper end face of the inflation pipe (31). The inflation mechanism (3) can be connected to an inflation device. An inflation channel (61) that can communicate with the first mounting hole (22) is provided on the lower mold base (6). The air tube (31) is fitted with a limiting ring (5) located above the workbench (1), and the limiting ring (5) is able to abut against the upper surface of the workbench (1). The inner wall of the limiting ring (5) is provided with an operating ring groove (51), and an elastic clamping ring (52) is provided in the operating ring groove (51). The clamping ring (52) is sleeved on the outside of the inflation tube (31) and abuts against the inflation tube (31).

2. The lower mold air passage structure of a packaging machine according to claim 1, characterized in that: The upper surface of the base plate (2) is provided with an installation groove (21), which is connected to the first installation hole (22). A washer (24) and an installation joint (23) are provided in the installation groove (21). The installation joint (23) passes through the washer (24) and is threadedly connected to the inflation ring (33).

3. The lower mold air passage structure of a packaging machine according to claim 2, characterized in that: The upper end face of the mounting joint (23) is provided with a mounting ring groove (231), and a sealing ring (232) that can abut against the lower mold base (6) is provided in the mounting ring groove (231).

4. The lower mold air passage structure of a packaging machine according to claim 2, characterized in that: The upper end face of the base plate (2) is provided with a first sealing ring groove (26) surrounding the mounting groove (21), and a first sealing ring block (261) is provided in the first sealing ring groove (26).

5. The lower mold air passage structure of a packaging machine according to claim 1, characterized in that: The workbench (1) has a second through hole (12). The air extraction mechanism (4) includes an air extraction pipe (41) passing through the second through hole (12) and an air extraction connector (42) on the air extraction pipe (41). The air extraction connector (42) can be connected to an air extraction device. The lower end face of the base plate (2) has a second mounting hole (25) for inserting the air extraction pipe (41). The lower end face of the lower mold base (6) has an air extraction channel (62) that communicates with the second mounting hole (25).

6. The lower mold air passage structure of a packaging machine according to claim 5, characterized in that: The upper end face of the base plate (2) is provided with a second sealing ring groove (27) surrounding the second mounting hole (25), and a second sealing ring block (271) is provided in the second sealing ring groove (27).

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