Woven bag sealing device

Abstract

The utility model relates to the technical field of woven bag sealing, in particular to a woven bag sealing device which comprises a bottom frame and a sealing mechanism, a clamping mechanism is arranged above the bottom frame, the sealing mechanism is located above the clamping mechanism, and the sealing mechanism comprises a conveying assembly and a sealing assembly. The device has the beneficial effects that the woven bags are conveyed through the conveying assembly, the opening positions of the woven bags are clamped and pulled to the sealing positions through the pulling and conveying structure during conveying, and meanwhile the opening positions of the woven bags with different calibers are pressed through the sealing assembly during pulling and conveying of the woven bags, and the upper ends of the woven bags are flush; the opening of the woven bag is sealed while the opening of the woven bag is pressed, the phenomenon that the opening of the woven bag is uneven is reduced through automatic sealing operation, the sealing flatness of the woven bag is improved, the sealing quality is improved, and the sealing device is suitable for sealing operation of the woven bags with different calibers.

Description

Technical Field

[0001] The utility model relates to the technical field of woven bag sealing, in particular to a woven bag sealing device. Background Technique

[0002] A woven bag, also known as a snake skin bag, is a kind of plastic bag used for packaging. Its raw materials are generally various chemical plastic raw materials such as polyethylene and polypropylene. And a woven bag sealing device is a device specially used for sealing and packaging woven bags.

[0003] By comparing with a woven bag sealing device with the patent publication number CN213974716U, in this solution, before sealing the opening of the woven bag, since the opening of the woven bag is in an open state when the materials are loaded, and the caliber of the opening is usually large or small, when the two second electric conveyor belts in this device press the opening of the woven bag, the opening of the woven bag may appear uneven, which may cause the upper end of the woven bag to be uneven after sealing, reducing the sealing flatness. Content of the Utility Model

[0004] The purpose of the utility model is to provide a woven bag sealing device to solve the above problems.

[0005] The utility model realizes the above purpose through the following technical solutions:

[0006] A woven bag sealing device includes a chassis, a clamping mechanism is arranged above the chassis, and a sealing mechanism for sealing the woven bag is also included. The sealing mechanism is located above the clamping mechanism;

[0007] The sealing mechanism includes a conveying component for conveying the woven bag and a sealing component for sealing the woven bag;

[0008] The sealing component includes a support frame arranged above the chassis. A cylinder is arranged at the upper end of the support frame. A fixed frame is fixed at the telescopic end of the cylinder. The fixed frame is arranged front and back. Electric push rods are arranged on the inner walls of both sides of the fixed frame. Clamping plates are installed at the telescopic ends of the electric push rods. A plurality of rollers are rotatably installed on the side walls of the clamping plates. The front end of the clamping plate is inclined. The front ends of the two clamping plates enclose a V shape with each other. A sealing device is arranged at the rear end of the fixed frame. A pulling and feeding structure is arranged between the sealing device and the clamping plate. The pulling and feeding structure is used for clamping the upper end of the woven bag and pulling it backward for sealing.

[0009] Preferably: The pulling and feeding structure includes a chute arranged at the upper end of the fixed frame. A lead screw is rotatably installed in the chute. A moving motor is installed at the rotating end of the lead screw. A sliding seat is slidably installed in the chute. A pneumatic clamp is arranged at the lower end of the sliding seat. The sliding seat is threadedly connected with the lead screw. A detection structure is arranged on the front side of the pneumatic clamp. The detection structure is used for detecting the position of the woven bag and driving the pneumatic clamp to clamp the upper end of the woven bag.

[0010] Preferably, the detection structure includes a proximity switch arranged on the front side of the pneumatic fixture, and the proximity switch is fixedly connected to the sliding seat through a connecting plate.

[0011] Preferably, the conveying assembly includes two fixing plates symmetrically arranged at the front and rear ends of the chassis. A rotating shaft is rotatably installed between the two fixing plates. A conveying motor is installed at the rotating end of the rotating shaft. A conveyor belt is installed between the two rotating shafts.

[0012] Preferably, the clamping mechanism includes a slide rail arranged at the middle position of the chassis. A threaded rod is rotatably installed in the slide rail. The thread directions at both ends of the threaded rod are opposite. Two symmetrical moving seats are slidably arranged in the slide rail. The moving seats are threadedly connected to the threaded rod. A rotating motor is installed at the rotating end of the threaded rod. A limiting plate is fixed to the upper end of the moving seat.

[0013] Preferably, a plurality of rollers are rotatably installed on the side wall of the limiting plate.

[0014] Compared with the prior art, the beneficial effects are as follows:

[0015] The woven bag is conveyed by the conveying assembly. When conveying, the opening of the woven bag is clamped by the pulling and feeding structure and pulled towards the sealing position. At the same time, when pulling and feeding the woven bag, the sealing assembly presses the openings of woven bags with different diameters and levels the upper ends of the woven bags. While pressing the opening of the woven bag, the opening of the woven bag is sealed. Through the automated sealing operation, the phenomenon that the openings of the woven bags are uneven is reduced, the flatness of the woven bag sealing is improved, the sealing quality is improved, and it is suitable for the sealing operation of woven bags with different diameters. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the drawings required for use in the description of the embodiments or the prior art. Obviously, the following drawings are only some embodiments of the present invention. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative efforts.

[0017] Figure 1 is a three-dimensional space diagram of a woven bag sealing device described in the present invention;

[0018] Figure 2 is a structural schematic diagram of the clamping mechanism of a woven bag sealing device described in the present invention;

[0019] Figure 3 is a structural schematic diagram of the sealing mechanism of a woven bag sealing device described in the present invention;

[0020] Figure 4 It is a schematic structural diagram of the pulling and feeding structure of a woven bag sealing device described in the present utility model.

[0021] The description of the reference numerals is as follows:

[0022] 100, chassis; 201, fixed plate; 202, rotating shaft; 203, conveying motor; 204, conveyor belt; 205, support frame; 206, cylinder; 207, fixed frame; 208, electric push rod; 209, clamping plate; 210, chute; 211, lead screw; 212, moving motor; 213, sliding seat; 214, pneumatic fixture; 215, proximity switch; 216, sealer; 217, roller; 301, slide rail; 302, rotating motor; 303, threaded rod; 304, moving seat; 305, limiting plate; 306, roller. Specific embodiments

[0023] In the description of the present utility model, it should be noted that unless otherwise clearly specified and limited, the terms "installation", "connection", and "connection" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the communication inside two components. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood through specific situations.

[0024] The present utility model will be further described below with reference to the accompanying drawings:

[0025] As Figures 1 - 4 shown, a woven bag sealing device includes a chassis 100 and a clamping mechanism for clamping and limiting the woven bag during transportation. The clamping mechanism is located above the chassis 100, and further includes a sealing mechanism for sealing the woven bag. The sealing mechanism is located above the clamping mechanism.

[0026] In this embodiment: The clamping mechanism includes a slide rail 301 provided above the chassis 100. A threaded rod 303 is rotatably installed in the slide rail 301. The thread directions at both ends of the threaded rod 303 are opposite. Two symmetrical moving seats 304 are slidably arranged in the slide rail 301. The moving seats 304 are threadedly connected to the threaded rod 303. The rotating end of the threaded rod 303 is installed with a rotating motor 302. The upper end of the moving seat 304 is fixed with a limiting plate 305. A plurality of rollers 306 are rotatably installed on the side wall of the limiting plate 305. Driving the rotating motor 302 to drive the threaded rod 303 to rotate, thereby driving the two moving seats 304 to move towards each other, driving the two limiting plates 305 to move towards each other to clamp and limit the two side surfaces of the middle woven bag, reducing the shaking of the woven bag during transportation.

[0027] In this embodiment: The sealing mechanism includes a conveying component for conveying the woven bag and a sealing component for sealing the woven bag.

[0028] The conveying component includes two fixed plates 201 symmetrically arranged at the front and rear ends of the chassis 100. A rotating shaft 202 is rotatably installed between the two fixed plates 201. A conveying motor 203 is installed at the rotating end of the rotating shaft 202. A conveyor belt 204 is installed between the two rotating shafts 202.

[0029] The sealing component includes a support frame 205 arranged above the conveyor belt 204. A cylinder 206 is arranged at the upper end of the support frame 205. A fixed frame 207 is fixed at the telescopic end of the cylinder 206. The fixed frame 207 is arranged front and rear. Electric push rods 208 are arranged on the inner walls of both sides of the fixed frame 207. Clamping plates 209 are installed at the telescopic ends of the electric push rods 208. A plurality of rollers 217 are rotatably installed on the side walls of the clamping plates 209. The front ends of the clamping plates 209 are inclined. The front ends of the two clamping plates 209 enclose a V shape with each other. A sealing device 216 is arranged at the rear end of the fixed frame 207. A pulling and feeding structure is arranged between the sealing device 216 and the clamping plate 209. The pulling and feeding structure is used to clamp the upper end of the woven bag and pull it backward for sealing.

[0030] The pulling and feeding structure includes a sliding groove 210 arranged at the upper end of the fixed frame 207. A lead screw 211 is rotatably installed in the sliding groove 210. A moving motor 212 is installed at the rotating end of the lead screw 211. A sliding seat 213 is slidably installed in the sliding groove 210. A pneumatic clamp 214 is arranged at the lower end of the sliding seat 213. The sliding seat 213 is threadedly connected with the lead screw 211. A detection structure is arranged on the front side of the pneumatic clamp 214. The detection structure is used to detect the position of the woven bag and drive the pneumatic clamp 214 to clamp the upper end of the woven bag.

[0031] The detection structure includes a proximity switch 215 arranged on the front side of the pneumatic clamp 214. The proximity switch 215 is fixedly connected with the sliding seat 213 through a connecting plate. The woven bag is conveyed by the conveying component. When conveying, the pulling and feeding structure is used to clamp the opening of the woven bag and pull it towards the sealing position. At the same time, when pulling and feeding the woven bag, the sealing component is used to press the openings of woven bags with different diameters and level the upper ends of the woven bags. While pressing the opening of the woven bag, the opening of the woven bag is sealed. Through the automated sealing operation, the phenomenon of unevenness at the opening of the woven bag is reduced, the flatness of the sealing of the woven bag is improved, the sealing quality is improved, and it is suitable for the sealing operation of woven bags with different diameters.

[0032] Working principle: First, place the woven bag to be sealed on the conveyor belt 204. Then, drive the rotation motor 302 to drive the threaded rod 303 to rotate, thereby driving the two moving seats 304 to move towards each other, driving the two limiting plates 305 to move towards each other to clamp and limit the two side surfaces of the woven bag in the middle, reducing the shaking of the woven bag during transportation. Then, drive the conveyor motor 203 to drive the rotating shaft 202 to rotate, and then drive the conveyor belt 204 to drive, transporting the clamped woven bag backward. During the transportation process, drive the cylinder 206 to drive the fixed frame 207 to move downward, so that the top of the fixed frame 207 is at the uppermost end of the woven bag, flush with each other. When the opening of the woven bag moves to the front ends of the two clamping plates 209, use the V-shaped structure formed by the front ends of the two clamping plates 209 to compress the upper diameter of the woven bag so that the upper end of the woven bag shrinks between the two clamping plates 209. Then, when the proximity switch 215 detects the upper end of the woven bag, drive the electric push rod 208 to drive the two clamping plates 209 to press the opening of the woven bag, so that the opening is tightly pressed. At the same time, drive the pneumatic clamp 214 at the lower end of the sliding seat 213 to clamp the upper end of the woven bag. Then, drive the moving motor 212 to drive the lead screw 211 to rotate, drive the sliding seat 213 to move backward, drive the woven bag clamped by the pneumatic clamp 214 to move backward in cooperation with the transmission of the conveyor belt 204. While moving, the two clamping plates 209 continuously press the opening of the woven bag. Then, use the sealer 216 at the rear end of the fixed frame 207 to seal the woven bag after the opening is pressed, thus completing the automatic opening pressing and opening sealing operations of the woven bag. Through the automatic sealing operation, the phenomenon of unevenness at the opening of the woven bag is reduced, the flatness of the woven bag sealing is improved, the sealing quality is improved, and it is suitable for the sealing operations of woven bags with different diameters.

[0033] The above shows and describes the basic principles, main features and advantages of the present utility model. Those skilled in the art of this industry should understand that the present utility model is not limited by the above embodiments. What is described in the above embodiments and the specification only illustrates the principle of the present utility model. Without departing from the spirit and scope of the present utility model, the present utility model will have various changes and improvements, and these changes and improvements all fall within the scope of the present utility model claimed.

Claims

1. A woven bag sealing device, comprising a base frame (100), wherein a clamping mechanism is arranged above the base frame (100), characterized in that: It also includes a sealing mechanism for sealing the woven bag, wherein the sealing mechanism is located above the clamping mechanism; The sealing mechanism comprises a conveying component for conveying the woven bag and a sealing component for sealing the woven bag; The sealing assembly comprises a support frame (205) arranged above the base frame (100), a cylinder (206) being arranged at the upper end of the support frame (205), a fixed frame (207) being fixed at the telescopic end of the cylinder (206), the fixed frame (207) being arranged front and rear, electric push rods (208) being arranged on the inner walls of both sides of the fixed frame (207), a clamping plate (209) being installed at the telescopic end of the electric push rod (208), a plurality of rollers (217) being rotatably installed on the side wall of the clamping plate (209), the front end of the clamping plate (209) being arranged obliquely, the front ends of the two clamping plates (209) mutually forming a V shape, a sealer (216) being arranged at the rear end of the fixed frame (207), a pulling structure being arranged between the sealer (216) and the clamping plate (209), the pulling structure being used for clamping the upper end of the woven bag and pulling it backwards to seal it.

2. A woven bag sealing device according to claim 1, characterized in that: The pulling structure comprises a slide groove (210) arranged at the upper end of the fixed frame (207), a lead screw (211) being rotatably installed in the slide groove (210), a movable motor (212) being installed at the rotating end of the lead screw (211), a sliding seat (213) being slidably installed in the slide groove (210), a pneumatic clamp (214) being arranged at the lower end of the sliding seat (213), the sliding seat (213) being threadedly connected to the lead screw (211), a detection structure being arranged at the front side of the pneumatic clamp (214), the detection structure being used to detect the position of the woven bag and drive the pneumatic clamp (214) to clamp the upper end of the woven bag.

3. A woven bag sealing device according to claim 2, characterized in that: The detection structure comprises a proximity switch (215) arranged on the front side of the pneumatic clamp (214), and the proximity switch (215) is fixedly connected to the sliding seat (213) via a connecting plate.

4. A woven bag sealing device according to claim 3, characterized in that: The conveying assembly comprises two fixed plates (201) symmetrically arranged at the front and rear ends of the base frame (100), a rotating shaft (202) is rotatably installed between the two fixed plates (201), a conveying motor (203) is installed at the rotating end of the rotating shaft (202), and a conveyor belt (204) is installed between the two rotating shafts (202).

5. A woven bag sealing device according to claim 4, characterized in that: The clamping mechanism comprises a slide rail (301) arranged at a middle position of the base frame (100), a threaded rod (303) being rotatably mounted in the slide rail (301), the threads arranged at two ends of the threaded rod (303) being in opposite directions, two symmetrical moving seats (304) being slidably mounted in the slide rail (301), the moving seats (304) being threadedly connected to the threaded rod (303), a rotating motor (302) being mounted at the rotating end of the threaded rod (303), and a limiting plate (305) being fixed at the upper end of the moving seat (304).

6. A woven bag sealing device according to claim 5, characterized in that: A plurality of rollers (306) are rotatably mounted on the side wall of the limiting plate (305).

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