Zipper conveying and caching mechanism of vertical zippered bag packaging machine

Abstract

The utility model relates to the technical field of packaging machines, in particular to a zipper conveying and caching mechanism of a vertical zippered bag packaging machine, which comprises an unwinding mechanism, a conveying mechanism and a caching mechanism, the conveying mechanism and the caching mechanism are positioned on the side edge of the unwinding mechanism, and a zipper on the unwinding mechanism is conveyed outwards through the conveying mechanism and the caching mechanism; the conveying mechanism comprises a supporting assembly connected with the unwinding mechanism, and a pressing roller assembly used for pulling a zipper and a driving assembly used for driving the pressing roller assembly to move are arranged on the supporting assembly. And meanwhile, due to the clamping and conveying effects of the transmission roller and the pressing roller, the whole unwinding mechanism can be in a small tension state, the tension of the zipper on the packaging film is effectively blocked, the tension of the packaging film is reduced through arrangement, and the packaging film is prevented from wrinkling.

Description

Technical Field

[0001] This utility model relates to the field of packaging machine technology, and in particular to a zipper conveying buffer mechanism for a vertical zipper bag packaging machine. Background Technology

[0002] In the packaging industry, bags are widely used as common packaging containers in daily life and industrial production. In particular, stand-up zipper bags are popular among users due to their good sealing properties and ease of storage.

[0003] However, a technical problem exists in the manufacturing process of stand-up zipper bags: when the packaging film is pulled down by the zipper, the sliding block in the zipper unwinding area causes the zipper to pull on the packaging film, resulting in tension in the film. This tension can easily cause the bag to wrinkle during bag making, affecting the appearance and quality of the product.

[0004] Based on this, in order to improve the stability of existing zipper conveying, we propose a zipper conveying buffer mechanism for a vertical zipper bag packaging machine. Utility Model Content

[0005] The purpose of this invention is to solve the problem in existing technologies where the sliding block in the zipper unwinding area causes the zipper to pull on the packaging film, resulting in tension in the packaging film. This tension easily leads to wrinkles in the bags during bag making, affecting the appearance and quality of the product. Therefore, this invention proposes a zipper conveying buffer mechanism for a vertical zipper bag packaging machine.

[0006] To achieve the above objectives, the present invention adopts the following technical solution:

[0007] A vertical zipper bag packaging machine zipper conveying and buffering mechanism is designed, including an unwinding mechanism and a conveying mechanism and a buffering mechanism located on the side of the unwinding mechanism. The zipper on the unwinding mechanism is conveyed outward through the conveying mechanism and the buffering mechanism.

[0008] The conveying mechanism includes a support assembly connected to the unwinding mechanism, on which a pressure roller assembly for pulling the zipper and a drive assembly for driving the pressure roller assembly to move are provided.

[0009] Furthermore, the unwinding mechanism includes a main board and an unwinding drum rotatably connected to the main board;

[0010] Two guide rollers and a tensioning assembly are also installed at the front end of the main board. After the zipper passes through one guide roller and the tensioning assembly by the unwinding drum, it is sent out by the other guide roller.

[0011] Furthermore, the tensioning assembly includes at least two guide rods fixed to the front end of the main board, a slide block slidably connected between the two guide rods, and a counterweight ring rotatably connected to the outer side of the slide block via a rod.

[0012] Furthermore, the support assembly includes a fixing plate and a mounting plate that are fixed to the motherboard by guide rods;

[0013] The fixing plate and the mounting plate are separated and fixed by support columns.

[0014] Furthermore, the pressure roller assembly includes a drive roller and a pressure roller rotatably connected to the fixed plate and the mounting plate;

[0015] Rotating grooves are provided on the opposite surfaces of the fixed plate and the mounting plate. Eccentric bushings rotating in the rotating grooves are installed at both ends of the pressure roller. One end of the pressure roller extends through to the outside of the mounting plate and is fixed with a handwheel. Locating pins are threaded to the sides of the fixed plate and the mounting plate. The locating pins abut against the outer wall of the eccentric bushings.

[0016] Furthermore, the drive assembly includes a motor mounting plate installed at the rear end of the fixed plate, a motor is fixedly mounted on the end face of the motor mounting plate, and the shaft end of the motor is connected to the shaft end of the transmission roller through a coupling.

[0017] Furthermore, the buffer mechanism includes a zipper box fixed below the fixed plate, and a counterweight is slidably connected to the inside of the zipper box. The zipper enters along the upper end of the zipper box, bends along the bottom of the counterweight, and then exits outward.

[0018] Furthermore, a sensor is fixedly installed at the bottom of the zipper box, and the sensor is used to detect the position of the counterweight.

[0019] Furthermore, two guide wheels are also installed on the end face of the fixing plate, and the front end of the counterweight has a protrusion that matches the opening.

[0020] The zipper conveying buffer mechanism of the vertical zipper bag packaging machine proposed in this utility model has the following advantages: Through the design of the transmission roller and pressure roller, the zipper can be clamped during zipper conveying. Excess zipper will enter the buffer mechanism for buffering. At the same time, due to the clamping and conveying effect of the transmission roller and pressure roller, the unwinding mechanism as a whole can be in a state of low tension, effectively blocking the tension of the zipper on the packaging film. This reduces the tension of the packaging film, prevents the packaging film from wrinkling, and ensures good sealing quality and airtightness of the zipper bag. Attached Figure Description

[0021] Figure 1 This is a perspective view of the present utility model;

[0022] Figure 2 This is the front view of the present invention;

[0023] Figure 3 This is a top view of the present invention;

[0024] Figure 4 for Figure 3 A magnified structural diagram of area A.

[0025] In the diagram: 1. Unwinding mechanism; 11. Main board; 12. Unwinding drum; 13. Guide roller; 14. Tensioning assembly; 141. Guide rod; 142. Slide; 143. Counterweight ring; 2. Conveying mechanism; 21. Support assembly; 211. Guide rod; 212. Fixing plate; 213. Mounting plate; 214. Support column; 22. Pressure roller assembly; 221. Transmission roller; 222. Pressure roller; 223. Eccentric bushing; 224. Handwheel; 225. Positioning pin; 226. Positioning port; 23. Drive assembly; 231. Motor mounting plate; 232. Motor; 233. Coupling; 3. Buffer mechanism; 31. Zipper box; 311. Opening; 32. Counterweight block; 321. Protrusion; 33. Sensor; 34. Guide wheel. Detailed Implementation

[0026] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0027] Reference Figure 1-4 As an embodiment of this utility model, a zipper conveying buffer mechanism for a vertical zipper bag packaging machine is disclosed. Specifically, the buffer mechanism includes an unwinding mechanism 1 and a conveying mechanism 2 and a buffer mechanism 3 located on the side of the unwinding mechanism 1. The zipper on the unwinding mechanism 1 is sent out through the conveying mechanism 2 and the buffer mechanism 3.

[0028] The conveying mechanism 2 includes a support assembly 21 connected to the unwinding mechanism 1. A pressure roller assembly 22 for pulling the zipper and a drive assembly 23 for driving the pressure roller assembly 22 to move are provided on the support assembly 21.

[0029] In some embodiments, the unwinding mechanism 1 of the present invention includes a main board 11 and an unwinding drum 12 rotatably connected to the main board 11. Of course, the unwinding drum 12 is also driven by a motor to rotate.

[0030] Two guide rollers 13 and a tensioning assembly 14 are also installed at the front end of the main board 11. After the zipper passes through one guide roller 13 and the tensioning assembly 14 via the unwinding drum 12, it is sent out by the other guide roller 13.

[0031] Specifically, the tensioning assembly 14 includes at least two guide rods 141 fixed to the front end of the main board 11, a slide block 142 slidably connected between the two guide rods 141, and a counterweight ring 143 rotatably connected to the outside of the slide block 142 via a rod.

[0032] In this embodiment, the zipper is tensioned by the vertical movement of the counterweight ring 143 under gravity. However, when the counterweight ring 143 moves up and down, it will cause the zipper to pull the packaging film, which will cause the packaging film to be tensile and the packaging bag to wrinkle after heat sealing. Therefore, in this utility model, the designed conveying mechanism 2 is used to clamp the zipper, which effectively blocks the pull of the zipper on the packaging film, thereby reducing the tension of the packaging film and preventing the packaging film from wrinkling.

[0033] Furthermore, the support component 21 in this embodiment includes a fixing plate 212 and a mounting plate 213 fixed to the main board 11 by a guide rod 211. It should be noted that one end of the guide rod 211 in this embodiment is fixedly connected to the fixing plate 212, and the other end passes through the main board 11. A locking bolt can be threaded onto the main board 11 to lock the position of the guide rod 211. The purpose of adopting this movable structure is to enable the front and rear position adjustment of the fixing plate 212 to improve adjustability.

[0034] The fixing plate 212 and the mounting plate 213 are separated and fixed by support columns 214. Specifically, in this embodiment, four support columns 214 can be distributed in a matrix. Of course, the two ends of the support columns 214 are fixed to the fixing plate 212 and the mounting plate 213.

[0035] In some embodiments, the pressure roller assembly 22 of the present invention includes a transmission roller 221 and a pressure roller 222 rotatably connected to the fixed plate 212 and the mounting plate 213. Of course, bearings for supporting the transmission roller 221 may also be installed on the end faces of the fixed plate 212 and the mounting plate 213.

[0036] Rotating grooves are provided on the opposite surfaces of the fixed plate 212 and the mounting plate 213. Eccentric bushings 223 rotating in the rotating grooves are installed at both ends of the pressure roller 222. One end of the pressure roller 222 extends through to the outside of the mounting plate 213 and is fixed with a handwheel 224. Since the eccentric bushing 223 will cause the pressure roller 222 to shift when it rotates, in order to make the handwheel 224 adapt to the displacement, clearance holes should also be provided on the end faces of the fixed plate 212 and the mounting plate 213 in this utility model to meet the movement requirements of the handwheel 224 following the pressure roller 222.

[0037] The sides of both the fixing plate 212 and the mounting plate 213 are threaded with positioning pins 225, and the positioning pins 225 abut against the outer wall of the eccentric bushing 223.

[0038] In a preferred embodiment, a positioning port 226 is provided on the outer side of the eccentric bushing 223, and the positioning pin 225 is set as a ball head plug. When the eccentric bushing 223 rotates, if the telescopic end of the positioning pin 225 is engaged inside the positioning port 226, it indicates that the pressure roller 222 is in place. At this time, the pressure roller 222 and the transmission roller 221 clamp the zipper.

[0039] In some embodiments, the drive assembly 23 of this utility model includes a motor mounting plate 231 installed at the rear end of the fixed plate 212. A motor 232 is fixedly installed on the end face of the motor mounting plate 231. The shaft end of the motor 232 is connected to the shaft end of the transmission roller 221 through a coupling 233. That is, in this embodiment, the transmission roller 221 is driven to rotate by the motor 232. When the transmission roller 221 and the pressure roller 222 clamp the zipper, the rotational conveying of the zipper can be realized.

[0040] Furthermore, in this embodiment, the buffer mechanism 3 includes a zipper box 31 fixed below the fixed plate 212. A counterweight 32 is slidably connected to the inner side of the zipper box 31. The zipper enters along the upper end of the zipper box 31, bends along the bottom of the counterweight 32, and is then led outward. In addition, in this embodiment, a sensor 33 is fixedly installed at the bottom of the zipper box 31, and the sensor 33 is used to detect the position of the counterweight 32. Specifically, in this embodiment, the sensor 33 can be set as a photoelectric switch. When the counterweight 32 is detected to be at the bottom, a command is issued to stop the motor 232 to stop the conveying.

[0041] It should be noted that, in this embodiment, two guide wheels 34 are also installed on the end face of the fixing plate 212, and the front end of the counterweight 32 has a protrusion 321 that matches the opening 311. The roller is used to change the direction of the zipper, and the part in contact with the zipper is circular. In addition, the counterweight 32 in this embodiment is made of a lightweight part.

[0042] Zipper box 31 is used to store zippers. Counterweight 32 is installed inside zipper box 31. After passing through conveyor mechanism 2, the zipper passes around counterweight 32 inside zipper box 31, passes through guide wheel 34, and is then conveyed to packaging film forming machine. The purpose of adding counterweight 32 is to prevent zipper from swinging. Moreover, counterweight 32 is made of lightweight parts and has very little pulling force on zipper. When counterweight 32 slides to the bottom of zipper box 31, sensor 33 senses counterweight 32 and motor 232 stops running.

[0043] In summary, the design of the transmission roller 221 and pressure roller 222 in this utility model enables the zipper to be clamped during zipper conveying. Excess zipper will enter the buffer mechanism 3 for buffering. At the same time, due to the clamping and conveying effect of the transmission roller 221 and pressure roller 222, the unwinding mechanism 1 can be kept in a state of low tension, effectively blocking the tension of the zipper on the packaging film. This reduces the tension of the packaging film, prevents the packaging film from wrinkling, and ensures good sealing quality and airtightness of the zipper bag.

[0044] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A zipper conveying buffer mechanism for a vertical zipper bag packaging machine, characterized in that, It includes an unwinding mechanism (1) and a conveying mechanism (2) and a buffer mechanism (3) located on the side of the unwinding mechanism (1). The zipper on the unwinding mechanism (1) is sent out through the conveying mechanism (2) and the buffer mechanism (3). The conveying mechanism (2) includes a support assembly (21) connected to the unwinding mechanism (1), and a pressure roller assembly (22) for pulling the zipper and a drive assembly (23) for driving the pressure roller assembly (22) to move are provided on the support assembly (21).

2. The zipper conveying buffer mechanism of a vertical zipper bag packaging machine according to claim 1, characterized in that: The unwinding mechanism (1) includes a main board (11) and an unwinding drum (12) rotatably connected to the main board (11); Two guide rollers (13) and a tensioning assembly (14) are also installed at the front end of the main board (11). After the zipper passes through one guide roller (13) and the tensioning assembly (14) by the unwinding drum (12), it is sent out by the other guide roller (13).

3. The zipper conveying buffer mechanism of a vertical zipper bag packaging machine according to claim 2, characterized in that: The tensioning assembly (14) includes at least two guide rods (141) fixed to the front end of the main board (11), and a slide block (142) is slidably connected between the two guide rods (141). A counterweight ring (143) is rotatably connected to the outside of the slide block (142) through a rod.

4. The zipper conveying buffer mechanism of a vertical zipper bag packaging machine according to claim 2, characterized in that: The support assembly (21) includes a fixing plate (212) and a mounting plate (213) fixed to the main board (11) by a guide rod (211); The fixing plate (212) and the mounting plate (213) are separated and fixed by a support column (214).

5. The zipper conveying buffer mechanism of a vertical zipper bag packaging machine according to claim 4, characterized in that: The pressure roller assembly (22) includes a drive roller (221) rotatably connected to the fixed plate (212) and the mounting plate (213) and a pressure roller (222); Rotating grooves are provided on the opposing surfaces of the fixed plate (212) and the mounting plate (213). Eccentric bushings (223) rotating in the rotating grooves are installed at both ends of the pressure roller (222). One end of the pressure roller (222) extends through to the outside of the mounting plate (213) and is fixed with a handwheel (224). Locating pins (225) are threaded to the sides of the fixed plate (212) and the mounting plate (213). The locating pins (225) abut against the outer wall of the eccentric bushings (223).

6. The zipper conveying buffer mechanism of a vertical zipper bag packaging machine according to claim 5, characterized in that: The drive assembly (23) includes a motor mounting plate (231) mounted on the rear end of the fixed plate (212). A motor (232) is fixedly mounted on the end face of the motor mounting plate (231). The shaft end of the motor (232) is connected to the shaft end of the transmission roller (221) through a coupling (233).

7. The zipper conveying buffer mechanism of a vertical zipper bag packaging machine according to claim 4, characterized in that: The buffer mechanism (3) includes a zipper box (31) fixed below the fixed plate (212). A counterweight (32) is slidably connected to the inside of the zipper box (31). The zipper enters along the upper end of the zipper box (31) and bends along the bottom of the counterweight (32) before being led outward.

8. The zipper conveying buffer mechanism of a vertical zipper bag packaging machine according to claim 7, characterized in that: The zipper box (31) has a front opening (311), and a sensor (33) is fixedly installed at the bottom of the zipper box (31). The sensor (33) is used to detect the position of the counterweight (32).

9. The zipper conveying buffer mechanism of a vertical zipper bag packaging machine according to claim 8, characterized in that: Two guide wheels (34) are also installed on the end face of the fixing plate (212), and the front end of the counterweight (32) has a protrusion (321) that matches the opening (311).

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