Valve pressing machine for exhaust valve of packaging bag

Abstract

The utility model relates to the technical field of valve pressing machines, in particular to a valve pressing machine for an exhaust valve of a packaging bag, which comprises a workbench provided with a valve pressing assembly, a feeding assembly for conveying the exhaust valve, a vibration disc, an air blowing assembly, a guide channel and a control box. And the guide channel is installed at the top of the workbench, a spirally-rising feeding channel is installed in the vibration disc, the feeding channel is fixedly connected with a feeding port of the feeding assembly, and the portion, close to the feeding assembly, of the feeding channel is fixedly connected with a screening sliding way. The exhaust valve feeding device has the advantages that exhaust valves are evenly and accurately conveyed into the guide channel, then the exhaust valves are conveyed into the grooves in the guide channel in cooperation with air bag exhaust, finally pressing forming is conducted through the valve pressing assembly, through automatic feeding, the problem of low working efficiency is solved, and the production efficiency is improved. And the problem that a worker is bruised when manually installing the exhaust valve is also prevented, and the safety is improved.

Description

Technical Field

[0001] This utility model relates to the field of valve press technology, and in particular to a valve press for a packaging bag exhaust valve. Background Technology

[0002] One-way venting valves are mostly used on packaging bags and are a functional packaging accessory. One-way venting valves generally require a valve pressing machine to weld them into the plastic bag through hot pressing. During hot pressing, a valve pressing mold is used to pierce small holes in the plastic bag, so that the gas inside the bag can be released out, while outside air cannot enter the bag. This further enables the plastic bag to have the functions of venting and preservation. Currently, they are widely used in coffee bags, fermented feed bags, tea bags, etc.

[0003] Most valve presses now require placing the one-way exhaust valve in a fixed position before placing the packaging bag, activating the cylinder, and completing the valve press operation. This method of operation is inefficient and unsafe, and workers may accidentally press their hands if they are not careful.

[0004] To address this issue, this utility model proposes a valve press for a packaging bag exhaust valve, thus providing a solution. Summary of the Invention

[0005] The purpose of this invention is to at least solve one of the aforementioned technical defects.

[0006] Therefore, one objective of this utility model is to provide a pressure valve machine for the exhaust valve of packaging bags, so as to solve the problems mentioned in the background art and overcome the shortcomings of the existing technology.

[0007] To achieve the above objectives, embodiments of this utility model provide a valve presser for a packaging bag exhaust valve, including a workbench, a valve presser assembly, a feeding assembly for conveying the exhaust valve, a vibrating plate, an air blowing assembly, a guide channel, and a control box.

[0008] The discharge port of the feeding assembly is connected to the guide channel, which is installed on the top of the workbench;

[0009] The vibratory feeder has a spiral feeding channel installed inside. The feeding channel is fixedly connected to the feed inlet of the feeding assembly. A screening slide is fixedly connected to the feeding channel near the feeding assembly. A through groove is opened below the screening slide. A side plate is fixedly connected to one side of the feeding channel located in the through groove. Both ends of the screening slide are provided with rounded corners.

[0010] The length of the through groove is the same as the length of the screening chute.

[0011] The feeding assembly includes a first feeding plate, the outlet of the first feeding plate is fixedly connected to the guide channel through a second feeding plate, a micro-rocker is provided on the side of the first feeding plate near the vibratory plate, and a slot is provided on the side of the first feeding plate near the micro-rocker.

[0012] The micro-rocker and the trough are both located on the same horizontal line, and the micro-rocker is inclined towards the inside of the first feeding plate.

[0013] The pressure valve assembly includes a hot pressure head driven by a cylinder. The bottom of the hot pressure head is provided with a hot pressure needle for punching holes. The outer surface of the hot pressure head is provided with a pressing plate for pressing the packaging bag. The cylinder is fixed to the workbench by a support frame, and a pressure plate is installed on the cylinder output shaft.

[0014] The air blowing assembly includes an air bladder, which is fixed to the inner top wall of the support frame. An air outlet pipe and an air inlet pipe are installed on the air bladder, and the other end of the air outlet pipe is fixedly connected to the side of the guide channel near the vibrating plate.

[0015] Both the air outlet and air inlet pipes are equipped with one-way valves.

[0016] The guide channel is fixed on the workbench, and a groove for a limit vent valve is provided on the guide channel, the groove corresponding to the hot press head.

[0017] The control box is equipped with a display screen and control buttons. The control box is mounted on the top of the workbench and fixed to the outside of the mounting frame.

[0018] The bottom of the vibratory feeder is fitted with a fixed base.

[0019] Compared with the prior art, the advantages and beneficial effects of this utility model are as follows:

[0020] By setting a feeding channel suitable for transporting exhaust valves on a vibratory feeder, and setting screening slides, through grooves, side plates, and other structures on the feeding channel, the vibration of the vibratory feeder and the above structures are used to adjust the exhaust valves, so that the exhaust valves are transported evenly and accurately into the guide channel. Then, with the help of airbags, the exhaust valves are sent into the grooves in the guide channel. Finally, they are pressed and formed by the pressure valve assembly. This application solves the problem of low work efficiency through automatic feeding, and also prevents workers from being injured when manually installing exhaust valves, thus improving safety.

[0021] Additional aspects and advantages of this invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description

[0022] The above and / or additional aspects and advantages of this utility model will become apparent and readily understood from the description of the embodiments taken in conjunction with the following drawings, in which:

[0023] Figure 1 This is a schematic diagram of the overall structure of the present invention;

[0024] Figure 2 This is a schematic diagram of the structure of the vibratory feeder according to the present invention;

[0025] Figure 3 According to this utility model Figure 2 Enlarged structural diagram at point A;

[0026] Figure 4 This is a schematic diagram of the cooperation structure between the first feeding plate and the screening chute according to the present invention;

[0027] Figure 5 This is a schematic diagram of the structure of the press-pack packaging bag according to the present invention;

[0028] Figure 6 According to this utility model Figure 5 Enlarged structural diagram at point A;

[0029] Figure 7 This is a schematic diagram of the structure of the air blowing assembly and guide channel according to the present invention;

[0030] Figure 8 This is a structural schematic diagram of the other side of the present invention;

[0031] Figure 9 According to this utility model Figure 1 Enlarged structural diagram at point A;

[0032] Figure 10 This is a left-side structural schematic diagram of the first feeding plate according to the present invention.

[0033] In the diagram: 1. Workbench; 2. Pressure valve assembly; 201. Support frame; 202. Pressing plate; 203. Cylinder; 204. Hot press head; 205. Hot press needle; 206. Pressing plate; 3. Exhaust valve; 4. Feeding assembly; 401. First feeding plate; 402. Second feeding plate; 403. Slot; 404. Micro-rocker; 5. Vibrating plate; 501. Feeding channel; 502. Screening chute; 503. Through slot; 504. Side plate; 505. Rounded corner; 506. Fixing base; 6. Air blowing assembly; 601. Airbag; 602. Air outlet pipe; 603. Air inlet pipe; 7. Guide channel; 701. Groove; 8. Control box; 801. Display screen; 802. Control button. Detailed Implementation

[0034] like Figures 1 to 10As shown, a valve presser for a packaging bag exhaust valve includes a worktable 1, on which a valve presser assembly 2, a feeding assembly 4 for conveying the exhaust valve 3, a vibrating plate 5, an air blowing assembly 6, and a guide channel 7 are provided.

[0035] The vibratory feeder 5 has a spirally ascending feeding channel 501 installed inside. The feeding channel 501 is fixedly connected to the inlet of the feeding assembly 4. A screening slide 502 is fixedly connected to the feeding channel 501 near the feeding assembly 4. A through groove 503 is opened below the screening slide 502. A side plate 504 is fixedly connected to one side of the feeding channel 501 located in the through groove 503. Both ends of the screening slide 502 are provided with rounded corners 505. Figure 3 As shown, the vibratory feeder 5 will overlap with the exhaust valve 3 during the process of conveying it through the feeding channel 501. When the two overlapping exhaust valves 3 pass through the side plate 504, the side plate 504 will block the top exhaust valve 3. The width of the feeding channel 501 can only accommodate one exhaust valve 3. When two or more exhaust valves 3 overlap or are irregularly stacked together and pass through the side plate 504, they will be blocked by the side plate 504.

[0036] The length of the through groove 503 is the same as the length of the screening chute 502.

[0037] The feeding assembly 4 includes a first feeding plate 401. The outlet of the first feeding plate 401 is fixedly connected to the guide channel 7 via a second feeding plate 402. A micro-rocker 404 is provided on the side of the first feeding plate 401 near the vibratory feeder 5. The micro-rocker 404 is to prevent the exhaust valve 3 from falling from the trough 403 into the vibratory feeder 5 during normal conveying. A trough 403 is provided on the side of the first feeding plate 401 near the micro-rocker 404, allowing excess exhaust valves 3 to fall into the vibratory feeder 5 for re-conveyance. The guide channel 7 conveys only one exhaust valve 3 at a time. Figure 8 As shown, the second feeding plate 402 sends the exhaust valve 3 into the guide channel 7. The width of the guide channel 7 can only accommodate one exhaust valve 3. When the exhaust valve 3 is sent into the guide channel 7, the exhaust valve 3 located in the first feeding plate 401 and the second feeding plate 402 cannot move forward. At this time, the vibrating plate 5 will still feed material onto the first feeding plate 401. The part of the first feeding plate 401 near the vibrating plate 5 will accumulate exhaust valves 3. The width of the first feeding plate 401 can only accommodate one exhaust valve 3. When too many exhaust valves 3 accumulate, the excess exhaust valves 3 will fall from the trough 403 into the vibrating plate 5 and then be fed back up. Figure 10 The exhaust valve 3 shown is tilted on the first feeding plate 401 by the micro-rocker 404, so that the exhaust valve 3 tilts to the left side of the first feeding plate 401 to prevent the normally moving exhaust valve 3 from falling into the trough 403. The trough 403 opened on the right side of the micro-rocker allows the excess exhaust valve 3 to fall into the vibrating plate 5.

[0038] The micro-rocker 404 and the trough 403 are both located on the same horizontal line, and the micro-rocker 404 is inclined towards the inside of the first feeding plate 401. The air blowing assembly 6 includes an air bag 601, which is fixed to the inner top wall of the support frame 201. An air outlet pipe 602 and an air inlet pipe 603 are installed on the air bag 601. The other end of the air outlet pipe 602 is fixedly connected to the guide channel 7 near the vibrating plate 5. When the air bag 601 is pressed, the air outlet pipe 602 starts to release air. When the exhaust valve 3 is blown into the groove 701 by the air from the air outlet pipe 602, the cylinder 203 starts to move downward. At this time, the air bag 601 is no longer squeezed, and the air inlet pipe 603 starts to introduce air into the air bag 601 until the air bag 601 is full of gas.

[0039] Both the air outlet pipe 602 and the air inlet pipe 603 are equipped with one-way valves. The one-way valves allow the air outlet pipe 602 to only discharge air and not allow air to enter, while the air inlet pipe 603 only allows air to enter and not discharge air.

[0040] The pressure valve assembly 2 includes a hot pressure head 204 driven by a cylinder 203. The bottom of the hot pressure head 204 is provided with a hot pressure needle 205 for drilling holes. The outer surface of the hot pressure head 204 is provided with a pressing plate 202 for pressing the packaging bag. The cylinder 203 is fixed on the workbench 1 by a support frame 201. A pressure plate 26 is installed on the output shaft of the cylinder 23. The hot pressure needle 205 drills holes in the exhaust valve 3. The drilling is to allow the exhaust valve 3 to better control the airflow.

[0041] The guide channel 7 is fixed on the worktable 1. A groove 701 for the limit exhaust valve 3 is opened on the guide channel 7. The groove 701 corresponds to the hot press head 204.

[0042] The control box 8 is equipped with a display screen 801 and control buttons 802. The control box 8 is installed on the top of the workbench 1 and fixed to the outside of the support frame 201. The control box 8 in this application is an existing control box. This application does not make any functional or structural improvements to the control box 8. The control box 8 can control the vibration frequency of the vibratory feeder 5. Adjusting the vibration frequency can change the feeding speed of the vibratory feeder 5.

[0043] A fixing seat 506 is installed at the bottom of the vibratory plate 5, and the fixing group 506 fixes the vibratory plate 5.

[0044] The vibratory feeder 5 vibrates via a pulse electromagnet mounted at its bottom. When current passes through the electromagnet, the vibratory feeder 5 vibrates, causing the exhaust valve 3 placed on it to vibrate vertically. An inclined spring plate inside the vibratory feeder 5 causes the exhaust valve 3 to oscillate in a specific direction. This vibration causes the exhaust valve 3 to rise along the spiral feeding channel 501, achieving smooth directional movement. During this ascent, the exhaust valve 3 can be screened from both sides via the screening chute 502 and the through-slot 503. The exhaust valve 3 used in this invention is elliptical in shape, narrower at the top and wider at the bottom, with an arc plate at the wider end. As the exhaust valve 3 rises along the feeding channel 501 and moves onto the fast screening chute 502, it first moves along the screening chute 502. The rounded corner 505 on 02 moves to the screening slide 502. The exhaust valve 3 will move on the screening slide 502 in two ways. The first way is that the exhaust valve 3 stands upright on the screening slide 502 through the arc plate. At this time, the exhaust valve 3 is not supported when moving on the screening slide 502. The vibration generated by the vibrating plate 5 causes the exhaust valve 3 to fall from the through groove 503 to the screening slide 502 below. The second way is that the exhaust valve 3 hangs upside down on the screening slide 502 through the arc plate. The entire exhaust valve 3 is located in the screening slide 502. When the exhaust valve 3 is vibrated, the entire exhaust valve 3 can act as a support to allow the exhaust valve 3 to move stably through the screening slide 502.

[0045] After being screened, the exhaust valve 3 enters the guide channel 7 through the first feeding plate 401 and the second feeding plate 402, but only one exhaust valve 3 can enter at a time. Simultaneously, the cylinder 203 drives the hot press head 204 and the pressure plate 206 to move upwards. When the pressure plate 206 moves upwards, it compresses the air bladder 601. The compressed air bladder 601 exhausts gas through the air outlet pipe 602. The exhaust gas exits through the guide channel 7 along the air outlet pipe 602. The compressed gas blows the exhaust valve 3 within the guide channel 7, causing the exhaust valve 3 to move along the interior of the guide channel 7 into the groove 701. The exhaust valve 3 on the hot press head 204 is made of plastic, is lightweight, and can be blown by air. Figure 6 As shown, the packaging bag opening is then placed between the guide channel 7 and the hot press head 204. The cylinder 203 is activated to drive the hot press head 204 and the pressing plate 202 to move downward. The pressing plate 202 and the hot press head 204 simultaneously press the packaging bag. The pressing plate 202 is responsible for pressing the connection between the packaging bag and the exhaust valve 3 flat. The hot press head 204 hot presses the packaging bag and the exhaust valve 3 into shape.

Claims

1. A valve press for a packaging bag exhaust valve, comprising a workbench (1), characterized in that: The workbench (1) is equipped with a pressure valve assembly (2), a feeding assembly (4) for conveying the exhaust valve (3), a vibratory plate (5), an air blowing assembly (6), a guide channel (7) and a control box (8); The discharge port of the feeding assembly (4) is connected to the guide channel (7), which is installed on the top of the workbench (1). A groove (701) for a limit exhaust valve (3) is provided on the guide channel (7). The vibratory feeder (5) is equipped with a spiral feeding channel (501) inside. The width of the feeding channel (501) can only accommodate one exhaust valve (3). The feeding channel (501) is fixedly connected to the feed inlet of the feeding assembly (4). A screening slide (502) is fixedly connected to the feeding channel (501) near the feeding assembly (4). A through groove (503) is opened below the screening slide (502). A side plate (504) is fixedly connected to one side of the feeding channel (501) located in the through groove (503). Both ends of the screening slide (502) are provided with rounded corners (505). The feeding assembly (4) includes a first feeding plate (401), the outlet of the first feeding plate (401) is fixedly connected to the guide channel (7) through a second feeding plate (402), the first feeding plate (401) is provided with a micro-rocker (404) on the side near the vibrating plate (5), and a slot (403) is provided on the side of the first feeding plate (401) near the micro-rocker (404), the micro-rocker (404) and the slot (403) are both located on the same horizontal line, and the micro-rocker (404) is inclined to the inside of the first feeding plate (401); The pressure valve assembly (2) includes a hot pressure head (204) driven by a cylinder (203), and a pressure plate (206) is mounted on the output shaft of the cylinder (203).

2. The pressure valve machine for the exhaust valve of a packaging bag according to claim 1, characterized in that: The length of the through groove (503) is the same as the length of the screening chute (502).

3. The pressure valve machine for the exhaust valve of a packaging bag according to claim 2, characterized in that: The bottom of the hot press head (204) is provided with a hot press needle (205) for punching holes, and the outer surface of the hot press head (204) is provided with a pressing plate (202) for pressing the packaging bag. The cylinder (203) is fixed on the workbench (1) by a support frame (201).

4. A valve press for a packaging bag exhaust valve according to claim 3, characterized in that: The air blowing assembly (6) includes an air bag (601), which is fixed on the inner top wall of the support frame (201). An air outlet pipe (602) and an air inlet pipe (603) are installed on the air bag (601). The other end of the air outlet pipe (602) is fixedly connected to the guide channel (7) on the side near the vibrating plate (5).

5. A valve press for a packaging bag exhaust valve according to claim 4, characterized in that: Both the exhaust pipe (602) and the intake pipe (603) are equipped with one-way valves.

6. A valve press for a packaging bag exhaust valve according to claim 5, characterized in that: The guide channel (7) is fixed on the worktable (1), and the groove (701) corresponds to the hot press head (204).

7. A valve press for a packaging bag exhaust valve according to claim 6, characterized in that: The control box (8) is equipped with a display screen (801) and control buttons (802). The control box (8) is installed on the top of the workbench (1) and fixed to the outside of the support frame (201).

8. A valve press for a packaging bag exhaust valve according to claim 7, characterized in that: The bottom of the vibratory plate (5) is fitted with a fixed base (506).

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