Edge sealer for woven bags

Abstract

This utility model discloses a sealing machine for woven bags, including a sealing machine base. A woven bag sealing structure is fixedly installed on the upper end of the sealing machine base, and a woven bag flattening device is fixedly installed on the end face of the sealing machine base. This utility model, by installing the woven bag flattening device, has two flat plates at both ends moving in opposite directions under the drive of a bidirectional threaded rod. The flat plates are able to contact the woven bag via springs, thus flattening the placed woven bag during movement. The flattened flat plates press against the edges of both ends of the woven bag, pressing and fixing the sealed woven bag to prevent it from deviating during sealing and improving the sealing effect. The woven bag sealing structure, driven by a mechanism, moves the upper sealing device towards the lower sealing device until it contacts the woven bag, completing the sealing through heat sealing. Furthermore, the upper and lower sealing devices are detachable, facilitating subsequent disassembly, maintenance, and replacement.

Description

Technical Field

[0001] This utility model relates to the field of woven bag edge sealing technology, specifically to an edge sealing machine for woven bags. Background Technology

[0002] Woven bags, also known as snake-skin bags, are a type of plastic bag used for packaging. Sealing the edges can effectively prevent problems such as bag opening tearing and thread breakage during use, thereby extending the service life of woven bags. The sealing of woven bags can be performed by an edge sealing machine.

[0003] The prior art, disclosed in patent document CN221417583U, discloses the following technical solution: a sealing machine for woven bags, belonging to the field of woven bag sealing technology, including a processing table, on which a sewing machine and an ultrasonic sealing machine are arranged in sequence, and a straightening component for straightening the sealing edge of the woven bag is slidably arranged.

[0004] The straightening component set in the above technical solution for straightening the edge of the woven bag can only pre-straighten the woven bag when it is just picked up. However, when the woven bag is conveyed to the bottom of the sewing machine and the ultrasonic sealing machine, the woven bag loses the pressure of being pressed and squeezed, which makes it easy for the woven bag to deviate from the processing table during the sealing process, affecting the sealing of the woven bag. Utility Model Content

[0005] The purpose of this invention is to provide a sealing machine for woven bags to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, the present invention provides the following technical solution: a sealing machine for woven bags, comprising a sealing machine base, a woven bag sealing structure fixedly installed on the upper end of the sealing machine base, and a woven bag flattening device fixedly installed on the end face of the sealing machine base.

[0007] The woven bag flattening device includes a sealing table. Limiting grooves are provided on the outer walls of both the front and rear ends of the sealing table. A bidirectional threaded rod is installed in the front limiting groove through a bearing, and a guide rod is fixedly connected in the rear limiting groove. Movable blocks are sleeved on the left and right outer walls of the bidirectional threaded rod and the guide rod. Sliding rods are slidably connected in the through holes on the outer sides of the movable blocks. A straightening plate is fixedly connected to the upper ends of the front and rear sliding rods. A spring is provided between the movable block and the straightening plate, and the springs are all located on the outer side of the sliding rod.

[0008] In the above technical solution, the flat plates at both ends move in opposite directions under the drive of the bidirectional threaded rod, and the flat plates can contact the woven bag through the spring, so as to flatten the placed woven bag during the movement. After being flattened, the two flat plates press on the edges of the two ends of the woven bag, which can press and fix the woven bag during sealing, and prevent the woven bag from deviating during sealing.

[0009] As a further preferred embodiment of this technical solution, an operating platform is bolted to the upper end of the edge banding machine base, and a mounting bracket is provided at the rear end of the operating platform.

[0010] As a further preferred embodiment of this technical solution, the woven bag sealing structure includes a hydraulic cylinder, which is located in the middle of the top side of the mounting frame. The output end of the hydraulic cylinder is connected to a mounting plate through a top bolt. Telescopic rods are provided on both the left and right sides of the top of the mounting frame, and the telescopic rods are connected to the left and right sides of the mounting plate through bolts on the top of the mounting frame.

[0011] In the above technical solution, the telescopic rod improves the stability of the upper edge banding device's movement.

[0012] As a further preferred embodiment of this technical solution, the left and right ends of the bottom side of the mounting plate are provided with slots, and the front and rear sides of the slots are provided with mounting holes.

[0013] As a further preferred embodiment of this technical solution, each of the card slots is embedded with a card plate, and the bottom sides of the two card plates on the left and right are fixedly connected with an upper edge sealer. A screw is provided between the card plate and the mounting hole.

[0014] In the above technical solution, the edge banding devices set at the top and bottom adopt a detachable installation method, which facilitates subsequent disassembly, maintenance and replacement.

[0015] As a further preferred embodiment of this technical solution, a lower edge sealer is provided in the groove on the rear side of the edge sealing table, and the lower edge sealer is symmetrically arranged with the upper edge sealer.

[0016] As a further preferred embodiment of this technical solution, a drive motor is provided at one end of the bidirectional threaded rod, and the drive motor is electrically connected to an external power source.

[0017] This utility model provides a sealing machine for woven bags, which has the following advantages:

[0018] (1) This utility model installs a woven bag flattening device. The flat plates at both ends move in opposite directions under the drive of the bidirectional threaded rod. The flat plates can contact the woven bag through springs, thereby flattening the woven bag during the movement. The two flattened flat plates press on the edges of the woven bag at both ends, which can press and fix the sealed woven bag, prevent the woven bag from deviating during sealing, and improve the sealing effect of the woven bag.

[0019] (2) This utility model installs a woven bag sealing structure, and drives the upper sealing device to move towards the lower sealing device until it contacts the woven bag and completes the sealing through the heat sealing principle. The upper and lower sealing devices are installed in a detachable manner, which facilitates subsequent disassembly, maintenance and replacement. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0021] Figure 2 This is a schematic diagram of the rear end structure of this utility model;

[0022] Figure 3 This is a schematic diagram of the structure of the woven bag flattening device of this utility model;

[0023] Figure 4 This is a cross-sectional view of the edge banding table of this utility model;

[0024] Figure 5 This is a schematic diagram of the woven bag sealing structure of this utility model;

[0025] Figure 6 This is an enlarged view of Figure A of this utility model;

[0026] In the diagram: 1. Edge sealing machine base; 11. Operating table; 12. Mounting frame; 2. Woven bag edge sealing structure; 21. Hydraulic cylinder; 22. Mounting horizontal plate; 221. Slot; 222. Mounting hole; 23. Telescopic rod; 24. Upper edge sealer; 241. Card plate; 242. Screw; 3. Woven bag flattening device; 31. Edge sealing table; 32. Lower edge sealer; 33. Limiting groove; 331. Two-way threaded rod; 332. Guide rod; 333. Movable block; 334. Slide rod; 335. Smoothing plate; 336. Spring. Detailed Implementation

[0027] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention.

[0028] This utility model provides a technical solution: such as Figure 1 and Figure 2 As shown in this embodiment, a woven bag sealing machine includes a sealing machine base 1, an operating table 11 is bolted to the upper end of the sealing machine base 1, an mounting frame 12 is provided at the rear end of the operating table 11, a woven bag sealing structure 2 is fixedly installed on the upper end of the sealing machine base 1, and a woven bag flattening device 3 is fixedly installed on the end face of the sealing machine base 1.

[0029] like Figure 5 and Figure 6As shown, the woven bag sealing structure 2 includes a hydraulic cylinder 21, which is located in the middle of the top side of the mounting frame 12. The output end of the hydraulic cylinder 21 passes through the top bolt of the 12 and is connected to the mounting plate 22. Telescopic rods 23 are provided on the left and right sides of the top of the mounting frame 12. The telescopic rods 23 pass through the top of the mounting frame 12 and are connected to the left and right sides of the mounting plate 22 by bolts. The bottom side of the mounting plate 22 has slots 221 on both the left and right ends. The slots 221 have mounting holes 222 on the front and back sides. The slots 221 are embedded with plates 241. The bottom sides of the two plates 241 are fixedly connected to the upper sealing device 24. The plates 241 and the mounting holes 222 are connected by screws 242. By installing the woven bag sealing structure 2, the upper sealing device 24 is moved towards the lower sealing device 32 by driving until it contacts the woven bag and completes the sealing through the heat sealing principle. The upper and lower sealing devices are installed in a detachable manner, which is convenient for subsequent disassembly, maintenance and replacement.

[0030] like Figure 3 and Figure 4 As shown, the woven bag flattening device 3 includes a sealing table 31. A lower sealing device 32 is bolted into the groove on the rear side of the sealing table 31. The lower sealing device 32 and the upper sealing device 24 are symmetrically arranged. Limiting grooves 33 are opened on the outer walls of both the front and rear ends of the sealing table 31. A bidirectional threaded rod 331 is installed in the front limiting groove 33 through a bearing. A drive motor is installed at one end of the bidirectional threaded rod 331. The drive motor is electrically connected to an external power source. The motor model is YBX3, which is existing technology. A guide rod 332 is fixedly connected in the rear limiting groove 33. Movable blocks 333 are sleeved on the left and right outer walls of the bidirectional threaded rod 331 and the guide rod 332. The movable blocks 333 slide in the through holes on the outer sides of the movable blocks 333. The device is connected to a slide bar 334, with a straightening plate 335 fixedly connected to the upper end of both the front and rear slide bars 334. A spring 336 is provided between the movable block 333 and the straightening plate 335. The springs 336 are all located on the outside of the slide bar 334. By installing the woven bag flattening device 3, the straightening plates 335 at both ends move in opposite directions under the drive of the bidirectional threaded rod 331. The straightening plates 335 can contact the woven bag through the springs 336, thus flattening the woven bag during the movement. After flattening, the two straightening plates 335 press against the edges of both ends of the woven bag, which can press and fix the sealed woven bag, prevent the woven bag from deviating during sealing, and improve the sealing effect of the woven bag.

[0031] This utility model provides a sealing machine for woven bags. The specific working principle is as follows: The operator pulls the two side sliding plates 335, causing the slide bar 334 to move upwards. Simultaneously, the spring 336 is stretched. The woven bag to be sealed is placed in the middle of the sealing table 31. Then, releasing the sliding plates 335 allows the spring 336 to return to its original position, thus making contact with the woven bag. The power to the drive motor is then turned on, causing the bidirectional threaded rod 331 to rotate. This causes the movable blocks 333 at both ends to move in opposite directions on the bidirectional threaded rod 331 and the guide rod 332. The sliding plates 335 at both ends flatten the woven bag from the inside out. After flattening, the sliding plates 335 continue to press against the edges of the woven bag. At this point, the drive motor is stopped. The hydraulic cylinder 21 is activated, causing the upper sealing device 24 to move towards the lower sealing device 32 until the upper sealing device 24 and the lower sealing device 32 contact the woven bag. Through heating and melting, and with a certain external force, they are bonded together, completing the sealing process.

[0032] Since the flattened 335 presses down on both ends of the woven bag, the edges are not sealed. The woven bag can be tilted to one side to complete the remaining sealing operation.

[0033] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A sealing machine for woven bags, comprising a sealing machine base (1), characterized in that: The upper end of the sealing machine base (1) is fixedly installed with a woven bag sealing structure (2), and the end face of the sealing machine base (1) is fixedly installed with a woven bag flattening device (3). The woven bag flattening device (3) includes a sealing table (31). The outer walls of the sealing table (31) at both the front and rear ends are provided with limiting grooves (33). A bidirectional threaded rod (331) is provided in the limiting groove (33) on the front side through a bearing. A guide rod (332) is fixedly connected in the limiting groove (33) on the rear side. Movable blocks (333) are sleeved on the left and right outer walls of the bidirectional threaded rod (331) and the guide rod (332). A sliding rod (334) is slidably connected in the through hole on the outer side of the movable block (333). A straightening plate (335) is fixedly connected to the upper end of the two sliding rods (334) on the front and rear sides. A spring (336) is provided between the movable block (333) and the straightening plate (335). The springs (336) are all located on the outer side of the sliding rod (334).

2. The edge-sealing machine for woven bags according to claim 1, characterized in that: The upper end of the base (1) of the edge banding machine is bolted with an operating table (11), and the rear end of the operating table (11) is provided with an installation frame (12).

3. The edge-sealing machine for woven bags according to claim 1, characterized in that: The woven bag sealing structure (2) includes a hydraulic cylinder (21), which is located in the middle of the top side of the mounting frame (12). The output end of the hydraulic cylinder (21) passes through the top of the mounting frame (12), and a mounting plate (22) is provided at the bottom of the output end. Telescopic rods (23) are provided on the left and right sides of the top of the mounting frame (12), and the telescopic rods (23) pass through the top of the mounting frame (12) and are bolted to the left and right sides of the mounting plate (22).

4. The edge-sealing machine for woven bags according to claim 3, characterized in that: The mounting plate (22) has slots (221) on both the left and right ends of its bottom side, and mounting holes (222) are provided on the front and back sides of the slots (221).

5. The edge-sealing machine for woven bags according to claim 4, characterized in that: Each of the slots (221) is embedded with a card plate (241), and the bottom sides of the two card plates (241) are fixedly connected with an upper edge sealer (24). A screw (242) is provided between the card plate (241) and the mounting hole (222).

6. The edge-sealing machine for woven bags according to claim 1, characterized in that: The lower edge sealer (32) is bolted in the groove on the rear side of the edge sealing table (31), and the lower edge sealer (32) is symmetrically arranged with the upper edge sealer (24).

7. The edge-sealing machine for woven bags according to claim 1, characterized in that: One end of the bidirectional threaded rod (331) is equipped with a drive motor, which is electrically connected to an external power source.

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