Automatic valve pressing machine

Abstract

The application discloses an automatic valve pressing machine, which comprises a valve pressing mechanism, a pushing assembly for pushing exhaust valves to the valve pressing mechanism, and a conveying assembly for conveying the exhaust valves to the pushing assembly, wherein the conveying assembly comprises a conveying channel, an output port of a vibrating disc is connected with an input end of the conveying channel, an output end of the conveying channel is connected with an input port of the pushing assembly, and a fixed-material blowing air pipe group is arranged on the upper side of the conveying channel. The valve pressing machine is designed by combining the fixed-material blowing air pipe group with the pushing assembly, single exhaust valves can be automatically moved and conveyed to the valve pressing position of the valve rod base, the fixed-material blowing air pipe group is designed in a clever structure to utilize the Venturi effect, the sucking disc does not need to be separately vacuumized, and when the exhaust valve at the last end of the conveying channel is blown by the blowing main pipe, the exhaust valve at the second output position can also be automatically fixed.

Description

An automatic valve press Technical Field

[0001] This invention relates to a valve press, and more particularly to an automatic valve press. Background Technology

[0002] Round, one-way exhaust valves are commonly used in various packaging bags. They allow air to escape from inside the bag while preventing outside air from entering. They are suitable for coffee bags, food packaging bags, etc. A valve presser is a mechanical device used to install the exhaust valve onto the packaging bag. The valve presser includes a valve stem seat and a hot press head. During valve pressing, the exhaust valve is placed in the valve pressing position on the valve stem seat. After bagging is completed, the hot press head of the valve presser is driven down, and the hot press head fuses the packaging bag and the exhaust valve together by heat fusion, thus completing the installation of the exhaust valve onto the packaging bag.

[0003] Currently, the large-scale conveying of exhaust valves is mainly achieved by using a vibrator to drive the conveyor track to vibrate. Subsequently, the exhaust valves need to be moved one by one to the pressure valve position of the pressure valve stem seat. How to automatically move a single exhaust valve to the pressure valve position of the pressure valve stem seat has become a technical problem that needs to be overcome to realize the automated operation of the pressure valve machine. Summary of the Invention

[0004] The purpose of this invention is to overcome the shortcomings of the prior art and provide an automatic valve press.

[0005] To achieve the above objectives, the present invention adopts the following technical solution: an automatic valve presser, comprising a valve presser mechanism, a pusher assembly for pushing an exhaust valve to the valve presser mechanism, and a conveying assembly for conveying the exhaust valve to the pusher assembly. The conveying assembly includes a conveying channel, the input end of which is connected to the discharge port of a vibratory feeder, and the output end of which is connected to the inlet of the pusher assembly. A fixed-material blowing air pipe assembly is provided on the upper side of the conveying channel.

[0006] The fixed-material blowing air pipe assembly includes a main blowing pipe and a branch pipe. The air inlet of the main blowing pipe is connected to an air pump, and the air outlet of the main blowing pipe faces the feed inlet of the conveying assembly. One end of the branch pipe is perpendicularly connected to the main blowing pipe. An airflow narrowing device is provided inside the main blowing pipe and is located at the connection between the branch pipe and the main blowing pipe. The other end of the branch pipe is connected to a suction cup at the conveying channel. The suction cup is located at the second discharge position at the output end of the conveying channel.

[0007] To further elaborate, an installation positioning component is provided between the suction cup and the conveyor channel. The upper end of the installation positioning component is provided with a buckle interface. The rod of the suction cup is inserted into the lower end of the installation positioning component and connected to the other end of the branch pipe.

[0008] To further elaborate, the pushing component includes a positioning guide channel and a pushing member. The positioning guide channel is vertically arranged on the conveyor channel, the inlet is opened on the side of the positioning guide channel, and the pushing member is slidably arranged on the positioning guide channel.

[0009] To elaborate further, the pressure valve stem seat is located at one end of the positioning guide channel, and the other end of the positioning guide channel is provided with a push cylinder for driving the pusher.

[0010] To further elaborate, the pressure valve mechanism includes a hot pressure head and a pressure valve cylinder for driving the hot pressure head to press the valve. An adjustment component for adjusting the pressure valve direction of the hot pressure head is provided between the hot pressure head and the pressure valve cylinder. A floating pressure bag assembly is provided at the hot pressure head.

[0011] To further elaborate, the floating bag-pressing assembly includes an intermediate sleeve and a bag-pressing plate. An installation plate is provided at the bag-pressing plate, and floating connecting rods are provided on both sides of the installation plate. A tension spring is provided between the floating connecting rods and the intermediate sleeve, and the hot pressing head is installed in the hollow cavity of the intermediate sleeve.

[0012] The beneficial effects of the present invention are as follows: The present invention adopts a structural design that combines a fixed material blowing air pipe assembly with a pushing component, so as to realize the automatic transfer of a single exhaust valve to the pressure valve position of the pressure valve rod seat. The structural design of the fixed material blowing air pipe assembly cleverly utilizes the Venturi effect, eliminating the need to separately evacuate the suction cup. When the blowing air main pipe blows the exhaust valve at the end of the conveying channel, it can also automatically fix the exhaust valve at the second discharge position. Attached Figure Description

[0013] Figure 1 is a schematic diagram of the structure of the present invention.

[0014] Figure 2 is a schematic diagram of the structure at the junction of the pushing component and the conveying component of the present invention.

[0015] Figure 3 is a schematic diagram of the structure at the junction of the pushing component and the conveying component of the present invention.

[0016] Figure 4 is a schematic diagram of the suction cup structure at the push component.

[0017] Figure 5 is a cross-sectional view of the structure of the fixed material blowing air pipe assembly.

[0018] Figure 6 is a schematic diagram of the pressure valve mechanism in this invention.

[0019] Figure 7 is a schematic diagram of the structure of the pressure valve mechanism before the pressure valve.

[0020] Figure 8 is a schematic diagram of the valve mechanism when the valve is being pressed.

[0021] Figure 9 is a structural schematic diagram of the mounting and positioning component.

[0022] Icon labels:

[0023] 10. Pushing component; 11. Positioning guide; 111. Feed inlet; 12. Pushing component; 13. Pushing cylinder; 20. Conveying component; 21. Conveying channel; 210. Second discharge sequence; 22. Suction cup; 23. Mounting and positioning component; 231. Fastening interface; 232. Lower insertion cylinder; 24. Straight vibrator; 30. Vibrating plate;

[0024] 40. Material blowing air pipe assembly; 41. Main blowing air pipe; 42. Branch pipe; 43. Airflow narrowing component; 50. Exhaust valve; 60. Pressure valve stem seat; 61. Pressure valve position;

[0025] 70. Pressure valve mechanism; 71. Hot press head; 72. Pressure valve cylinder; 73. Adjustment assembly; 731. Adjustment connector; 7311. Hinge groove; 732. Adjustment screw; 74. Floating bag pressing assembly; 741. Intermediate sleeve; 7411. Storage groove; 7412. Upper hinge part; 742. Bag pressing plate; 743. Mounting plate; 744. Floating connecting rod; 7441. Crossbar part; 745. Tension spring; 80. Packaging bag. Detailed Implementation

[0026] To make the objectives, technical solutions, and advantages of the present invention clearer, the present invention will be further described in detail below with reference to the accompanying drawings.

[0027] As shown in Figures 1 and 2, an automatic valve presser includes a valve presser mechanism 70, a pusher assembly 10 for pushing an exhaust valve 50 to the valve presser mechanism 70, and a conveying assembly 20 for conveying the exhaust valve 50 to the pusher assembly 10. The conveying assembly 20 includes a conveying channel 21, the input end of which is connected to the discharge port of the vibrating plate 30, and the output end of which is connected to the inlet 111 of the pusher assembly 10. A fixed material blowing air pipe assembly 40 is provided on the upper side of the conveying channel 21.

[0028] A vertical vibrator 24 is specifically installed on the lower side of the conveyor 21. The vibrating plate 30 outputs one exhaust valve 50 to the conveyor 21. Under the action of the vertical vibrator 24, the conveyor 21 transports the exhaust valve 50 to the pushing component 10. The pushing component 10 then pushes the exhaust valve 50 to the pressure valve position 61 of the pressure valve rod seat 60, completing the preliminary preparation for installing the exhaust valve 50 on the packaging bag.

[0029] The vibrator 24 conveys the exhaust valve 50 output from the vibratory plate 30 to the pushing assembly 10 through the conveyor 21, completing the long-distance conveying. After completing the long-distance conveying, in order to accurately send the exhaust valve 50 into the pushing assembly 10, a fixed material blowing air pipe assembly 40 is provided on the upper side of the conveyor 21. As shown in Figures 2 to 5, the fixed material blowing air pipe assembly 40 includes a main blowing pipe 41 and a branch pipe 42. The air inlet of the main blowing pipe 41 is connected to an air pump (note: not shown in the figure), and the air outlet of the main blowing pipe 41 faces the feed inlet 111 of the conveying assembly 20. The main blowing pipe 41 blows the exhaust valve 50 at the end of the conveyor 21 into the feed inlet 111 of the pushing assembly 10 by blowing air.

[0030] Referring to Figures 2 to 5, one end of the branch pipe 42 is vertically connected to the main air blowing pipe 41. An airflow narrowing component 43 is installed inside the main air blowing pipe 41 at the connection between the branch pipe 42 and the main air blowing pipe 41. The other end of the branch pipe 42 is connected to a suction cup 22 at the conveyor channel 21. The suction cup 22 is located at the second discharge position 210 at the output end of the conveyor channel 21. A mounting positioning component 23 is installed between the suction cup 22 and the conveyor channel 21. As shown in Figure 9, the upper end of the mounting positioning component 23 has a snap-fit ​​interface 231. The rod of the suction cup 22 is inserted into the lower insertion sleeve 232 of the mounting positioning component 23 and connected to the other end of the branch pipe 42. Both the main air blowing pipe 41 and the branch pipe 42 are made of transparent plastic, facilitating the visual installation of the airflow narrowing component 43 inside the main air blowing pipe 41.

[0031] Because the airflow velocity from the blowing pipe 41 is relatively high, a certain distance must be maintained between the inlet of the blowing pipe 41 and the blown exhaust valve 50 to ensure that the blown exhaust valve 50 will not bounce back after being blown into the feed inlet 111 of the conveying assembly 20. Experiments have shown that the optimal distance between the inlet of the blowing pipe 41 and the blown exhaust valve 50 is one exhaust valve 50. However, this also creates another problem: when the blowing pipe 41 blows the exhaust valve 50 at the very end of the conveyor 21 into the feed inlet 111 of the pushing assembly 10, it also actuates the exhaust valve at the second discharge position 210 at the output end of the conveyor 2, causing a portion of the exhaust valve's structure to enter the feed inlet 111, affecting the subsequent operation of the pushing assembly 10.

[0032] To overcome this problem, a branch pipe 42 is installed at the main air blowing pipe 41. One end of the branch pipe 42 is perpendicularly connected to the main air blowing pipe 41, and the other end is connected to the suction cup 22 at the second discharge position 210 of the conveyor 21. As shown in Figure 5, an airflow narrowing component 43 is provided inside the main air blowing pipe 41, located at the connection between the branch pipe 42 and the main air blowing pipe 41. This structural design utilizes the Venturi effect. The air blown in the main air blowing pipe 41 is accelerated by the airflow narrowing component 43, creating a negative pressure in the branch pipe 42. This causes the suction cup 22 to hold the exhaust valve at the second discharge position 210 of the conveyor 21, ensuring that the main air blowing pipe 41 does not blow the exhaust valve 50 at the end of the conveyor 21 into the inlet 111 of the push assembly 10. The structural design of the fixed material blowing air pipe assembly 40 cleverly utilizes the Venturi effect, eliminating the need for separate vacuuming of the suction cup 22. When the blowing air main pipe 41 blows the exhaust valve at the end of the conveyor channel 21, it can also automatically fix the exhaust valve at the second discharge position 210.

[0033] Referring to Figures 1 and 2, the pushing assembly 10 includes a positioning guide channel 11 and a pushing member 12. The positioning guide channel 11 is vertically arranged on the conveyor channel 21, and the inlet 111 is opened on the side of the positioning guide channel 11. The pushing member 12 is slidably arranged on the positioning guide channel 11. A pressure valve rod seat 60 is provided at one end of the positioning guide channel 11, and a pushing cylinder 13 for driving the pushing member 12 is provided at the other end of the positioning guide channel 11. The rear end of the pushing member 12 is connected to the telescopic rod of the pushing cylinder 13, and the front end of the pushing member 12 is V-shaped. The air blowing main pipe 41 blows the exhaust valve 50 at the end of the conveyor channel 21 into the inlet 111 of the pushing assembly 10. The exhaust valve 50 enters the positioning guide channel 11 from the inlet 111. Then, the pushing cylinder 13 pushes the pushing member 12, and the pushing member 12 pushes the exhaust valve 50 to the pressure valve position 61 of the pressure valve rod seat 60.

[0034] Referring to Figures 1, 6 to 8, the valve mechanism 70 includes a hot pressure head 71 and a valve cylinder 72 for driving the hot pressure head 71 to press the valve. The hot pressure head 71 is specifically located above the valve position 61 of the valve rod seat 60. An adjustment component 73 for adjusting the valve pressing direction of the hot pressure head 71 is provided between the hot pressure head 71 and the valve cylinder 72. A floating pressure bag assembly 74 is provided at the hot pressure head 71.

[0035] The floating bag-pressing assembly 74 includes an intermediate sleeve 741 and a bag-pressing plate 742. A mounting plate 743 is provided at the bag-pressing plate 742, and floating connecting rods 744 are provided on both sides of the mounting plate 743. A tension spring 745 is provided between the floating connecting rods 744 and the intermediate sleeve 741. A hot pressing head 71 is installed in the hollow cavity of the intermediate sleeve 741. The bag-pressing plate 742 is specifically annular, and a central through hole is provided at the mounting plate 743 for the hot pressing head 71 to pass through.

[0036] The adjusting assembly 73 includes an adjusting connector 731. The upper end of the adjusting connector 731 is fixedly connected to the telescopic rod of the pressure valve cylinder 72. The lower end of the adjusting connector 731 has a hinge groove 7311. The upper hinge portion 7412 of the intermediate sleeve 741 is hinged to the hinge groove 7311 of the adjusting connector 731. Two symmetrically arranged adjusting screws 732 are provided at the adjusting connector 731. The lower ends of the adjusting screws 732 abut against the upper hinge portion 7412 of the intermediate sleeve 741. Before applying the pressure valve, the valve-applying direction of the hot pressure head 71 can be finely adjusted by adjusting the adjusting screws 732 at the adjusting connector 731.

[0037] Each intermediate sleeve 741 has a receiving groove 7411 for mounting a tension spring 745, and the floating connecting rod 744 slides along the receiving groove 7411. The floating connecting rod 744 is L-shaped, with its horizontal bar 7441 connected to the upper end of the tension spring 745, and the lower end of the tension spring 745 abutting against the intermediate sleeve 741. As shown in Figure 7, before the valve is pressed, the exhaust valve 50 is located at the valve pressing position 61 of the valve pressing rod seat 60. Then, as shown in Figure 8, the opening of the packaging bag 80 is placed on the valve pressing rod seat 60, and then the valve pressing cylinder 72 drives the floating bag pressing assembly 74 and the hot pressing head 71 to press down. The bag pressing plate 742 of the floating bag pressing assembly 74 first contacts the packaging bag 80. Under the action of the pressure plate 742, the position of the packaging bag 80 that is to be bonded to the exhaust valve 50 is pressed flat. As the pressure plate 742 moves down, it pushes the floating connecting rod 744 upward in the opposite direction. The floating connecting rod 744 drives the tension spring 745 to stretch until the hot pressure head 71 contacts the packaging bag 80, and finally the valve is pressed.

[0038] In the description of this invention, it should be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this invention.

[0039] It should be understood that the terms "first," "second," etc., are used in this invention to describe various types of information, but these terms are not limited to them; they are only used to distinguish information of the same type from one another. For example, without departing from the scope of this invention, "first" information may also be referred to as "second" information, and similarly, "second" information may also be referred to as "first" information.

[0040] The above description is not intended to limit the scope of the present invention. Any modifications, equivalent changes, and alterations made to the above embodiments based on the technical essence of the present invention shall still fall within the scope of the present invention.

Claims

1. An automatic valve press, characterized in that: The device includes a pressure valve mechanism (70), a push assembly (10) for pushing an exhaust valve (50) to the pressure valve mechanism (70), and a conveying assembly (20) for conveying the exhaust valve (50) to the push assembly (10). The conveying assembly (20) includes a conveying channel (21), the input end of which is connected to the discharge port of the vibratory feeder (30), and the output end of which is connected to the inlet (111) of the push assembly (10). A fixed material blowing air pipe assembly (40) is provided on the upper side of the conveying channel (21). The fixed material blowing air pipe assembly (40) includes a main blowing air pipe (41) and a branch pipe (42). The air inlet of the main air blowing pipe (41) is connected to the air pump, and the air outlet of the main air blowing pipe (41) faces the feed inlet (111) of the conveying assembly (20). One end of the branch pipe (42) is vertically connected to the main air blowing pipe (41). An airflow narrowing component (43) is provided inside the main air blowing pipe (41). The airflow narrowing component (43) is located at the connection between the branch pipe (42) and the main air blowing pipe (41). The other end of the branch pipe (42) is connected to a suction cup (22) at the conveying channel (21). The suction cup (22) is located at the second discharge position (210) at the output end of the conveying channel (21).

2. The automatic valve press according to claim 1, characterized in that: An installation positioning component (23) is provided between the suction cup (22) and the conveyor (21). The upper end of the installation positioning component (23) is provided with a buckle interface (231). The rod of the suction cup (22) is inserted into the lower end of the installation positioning component (232) and connected to the other end of the branch pipe (42).

3. The automatic valve press according to claim 1, characterized in that: The pushing component (10) includes a positioning guide channel (11) and a pushing member (12). The positioning guide channel (11) is vertically arranged on the conveying channel (21). The inlet (111) is opened on the side of the positioning guide channel (11). The pushing member (12) is slidably arranged on the positioning guide channel (11).

4. An automatic valve press according to claim 3, characterized in that: A pressure valve stem seat (60) is provided at one end of the positioning guide channel (11), and a push cylinder (13) for driving the pusher (12) is provided at the other end of the positioning guide channel (11).

5. An automatic valve press according to claim 1, characterized in that: The pressure valve mechanism (70) includes a hot pressure head (71) and a pressure valve cylinder (72) for driving the hot pressure head (71) to press the valve. An adjustment component (73) for adjusting the pressure valve direction of the hot pressure head (71) is provided between the hot pressure head (71) and the pressure valve cylinder (72). A floating pressure bag assembly (74) is provided at the hot pressure head (71).

6. An automatic valve press according to claim 5, characterized in that: The floating bag pressing assembly (74) includes an intermediate sleeve (741) and a bag pressing plate (742). The bag pressing plate (742) is provided with an installation plate (743). Floating connecting rods (744) are provided on both sides of the installation plate (743). A tension spring (745) is provided between the floating connecting rods (744) and the intermediate sleeve (741). The hot pressing head (71) is installed in the hollow cavity of the intermediate sleeve (741).

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