Purifying plastic bag sealing and trimming device

Abstract

The utility model discloses a purifying plastic bag sealing and trimming device, which relates to the technical field of sealing devices and comprises a base, a fixing frame is fixedly arranged in the middle of the upper surface of the base, sliding grooves are formed in the two ends of the outer side wall of the fixing frame in a penetrating manner, and sliding blocks are arranged in the sliding grooves in a penetrating manner. A spring is arranged between the top end of the sliding block and the inner wall of the sliding groove, and a sealing pressing roller is movably arranged on the inner side of the sliding block through a bearing. The two sealing compression rollers are arranged above the base, the two sealing compression rollers can be tightly attached to the purification plastic bag under the action of the springs and rotate along with movement of the purification plastic bag, the grooves are formed in the outer sides of the sealing compression rollers, the electric heating plates are arranged in the grooves, and each sealing compression roller rotates by one circle, so that the sealing compression rollers can seal the purification plastic bag. And the electric heating plate can heat and seal the purification plastic bag once, so that the purification plastic bag can be automatically sealed, and the sealing processing efficiency of the purification plastic bag is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of sealing devices, in particular to a sealing and trimming device for a purified plastic bag. Background Art

[0002] Purification plastic bags are mostly made of polyethylene film, which is non-toxic. Another type of film is made of polyvinyl chloride, which is also non-toxic. With the development of society, the demand for purification plastic bags is increasing, and the processing technology of plastic bags is becoming more and more perfect. However, in the production process of plastic bags, the purification plastic bags need to be sealed and trimmed. In the prior art, a sealing machine is used to complete this process.

[0003] For example, a plastic bag sealing machine and sealing device with publication number CN204056433U, the sealing device includes a mounting frame and a workbench mounted on the mounting frame, the workbench is provided with a lower fixing plate and an upper pressing plate for sealing, and the lower fixing plate is provided with a sealing heating device. When the plastic bag is working, it is placed between the lower fixing plate and the upper pressing plate, and the plastic bag is sealed by heating through the sealing heating device. A pushing device fixed to the upper pressing plate is provided on the mounting frame, and a sensing device for detecting whether the plastic bag has passed is provided on the workbench, and also includes a control device connected to the sensing device and controlling the operation of the pushing device after it senses the plastic bag. The sensing device is connected to the control device, and when the plastic bag passes through the sensing device, the sensing device sends a signal to the control device, and the control device automatically controls the action of the pushing device, thereby realizing the sealing action of driving the upper pressing plate and the lower fixing plate, realizing automatic sealing of the plastic bag, and improving the convenience of the sealing machine.

[0004] The above technical solution has some problems in practical application. The technical solution can only realize the sealing process of the plastic bag. Workers need to manually place and pull the plastic bag before and after the process, which is inefficient and cannot cut the sealed plastic bag.

[0005] Therefore, it is necessary to invent a sealing and trimming device for a purified plastic bag to solve the above problems. Utility Model Content

[0006] The purpose of the utility model is to provide a sealing and trimming device for a clean plastic bag to solve the problems raised in the above-mentioned background technology.

[0007] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a purified plastic bag sealing and trimming device comprises a base, a fixed frame is fixedly provided on the middle part of the upper surface of the base, slide grooves are penetrated at both ends of the outer wall of the fixed frame, a slider is penetrated inside the slide groove, and a spring is provided between the top of the slider and the inner wall of the slide groove, a sealing roller is movably provided on the inner side of the slider through a bearing, an extension frame is fixedly provided on one side of the fixed frame, a movable seat is movably provided on the inner side of the extension frame through a bearing, a traction motor is fixedly provided on one end of the outer wall of the extension frame, and the output shaft of the traction motor is fixedly connected to the outer side of the movable seat, a traction roller is fixedly provided on the inner side of the movable seat, a knife holder is fixedly provided on the outer side of the extension frame, a telescopic gas rod is fixedly provided on the outer wall of the knife holder, a cutter is fixedly provided on the output shaft of the telescopic gas rod, and the cutter is provided on the outer side of the traction roller.

[0008] Preferably, fixing plates are fixedly provided at both ends of the inner side of the tool holder, and the fixing plates are arranged in an arc-shaped structure.

[0009] Preferably, a plurality of pins are arranged around the inner wall of the movable seat, and a torsion spring is arranged around the outer side of the pin. A pressure plate with an arc structure is fixedly arranged at one end of the pin, and the pressure plate is arranged in an "L"-shaped structure.

[0010] Preferably, a protrusion is fixedly provided in the middle of the outer side wall of the pressure plate, and the position of the protrusion corresponds to the fixing plate.

[0011] Preferably, a groove with a "convex" structure is provided in the middle of the outer side wall of the sealing roller, and an electric heating plate is fixedly arranged inside the groove.

[0012] Preferably, a feed roller is provided at the middle of one side of the fixed frame away from the extending frame, and the height of the feed roller corresponds to that of the traction roller.

[0013] Technical effects and advantages of the utility model:

[0014] 1. The utility model arranges two sealing rollers above the base. The two sealing rollers can fit tightly with the purified plastic bag under the action of springs and rotate with the movement of the purified plastic bag. A groove is provided on the outer side of the sealing roller. An electric heating plate is provided inside the groove. The electric heating plate can heat and seal the purified plastic bag once every time the sealing roller rotates one circle, thereby realizing automatic sealing of the purified plastic bag to improve its sealing processing efficiency.

[0015] 2. The utility model arranges a traction roller on one side of the sealing roller, and a cutter is arranged on the outer side of the traction roller. The cutter can cut the sealed purified plastic bag. A plurality of pins are arranged at both ends of the traction roller, and a pressure plate and a protrusion are arranged on the outer side of the pin. When the pin follows the rotation of the traction roller, the protrusion is squeezed by the fixed plate to drive the pin to rotate, so that the pressure plate can press the purified plastic bag against the outer side of the traction roller to realize the traction of the traction roller, thereby realizing the automatic transportation and sealing and trimming of the purified plastic bag. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the overall structure of the utility model.

[0017] Figure 2 It is a schematic cross-sectional view of the overall structure of the utility model.

[0018] Figure 3 It is a schematic cross-sectional view of the traction roller structure of the utility model.

[0019] In the figure: 1. base; 2. fixed frame; 3. slide groove; 4. slider; 5. spring; 6. sealing roller; 7. extension frame; 8. movable seat; 9. traction motor; 10. traction roller; 11. knife holder; 12. telescopic gas rod; 13. cutting knife; 14. fixed plate; 15. pin rod; 16. pressure plate; 17. bump; 18. groove; 19. heating plate; 20. feeding roller. DETAILED DESCRIPTION

[0020] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0021] The utility model provides Figure 1-3 A sealing and trimming device for a purified plastic bag is shown, comprising a base 1, a fixing frame 2 is fixedly arranged in the middle of the upper surface of the base 1, a slide groove 3 is penetrated at both ends of the outer wall of the fixing frame 2, a slider 4 is penetrated inside the slide groove 3, and a spring 5 is arranged between the top of the slider 4 and the inner wall of the slide groove 3, and a sealing roller 6 is movably arranged on the inner side of the slider 4 through a bearing;

[0022] Specifically, an extension frame 7 is fixedly provided on one side of the fixed frame 2, a movable seat 8 is movably provided on the inner side of the extension frame 7 through a bearing, a traction motor 9 is fixedly provided on one end of the outer wall of the extension frame 7, and the output shaft of the traction motor 9 is fixedly connected to the outer side of the movable seat 8, a traction roller 10 is fixedly provided on the inner side of the movable seat 8, a knife holder 11 is fixedly provided on the outer side of the extension frame 7, a telescopic gas rod 12 is fixedly provided on the outer wall of the knife holder 11, a cutter 13 is fixedly provided on the output shaft of the telescopic gas rod 12, and the cutter 13 is provided on the outer side of the traction roller 10, and the cutter 13 is used for cutting the purified plastic bag, and the cutting range of the purified plastic bag can be controlled by changing the position and structure of the cutter 13;

[0023] More specifically, a fixing plate 14 is fixedly provided at both ends of the inner side of the knife holder 11, and the fixing plate 14 is set to an arc-shaped structure. A plurality of pins 15 are arranged around the inner side wall of the movable seat 8, and a torsion spring is arranged around the outer side of the pin 15. A pressing plate 16 with an arc-shaped structure is fixedly provided at one end of the pin 15, and the pressing plate 16 is set to an "L"-shaped structure. The setting of the "L"-shaped structure can increase the pressing range of the pressing plate 16 on the purified plastic bag, and can reduce the interference range between the cutter 13 and the pressing plate 16.

[0024] In addition, a protrusion 17 is fixedly provided in the middle of the outer wall of the pressing plate 16, and the position of the protrusion 17 corresponds to the fixed plate 14. When the protrusion 17 rotates to the inner side of the fixed plate 14, the protrusion 17 is squeezed by the fixed plate 14 and moves inward, and the protrusion 17 drives the pressing plate 16 to move inward, and the pressing plate 16 presses the purified plastic bag to the outer side of the traction roller 10 through one end of its "L" structure;

[0025] Moreover, a "convex" shaped groove 18 is provided in the middle of the outer wall of the sealing roller 6, and an electric heating plate 19 is fixedly installed inside the groove 18. A feed roller 20 is provided in the middle of the side of the fixed frame 2 away from the extension frame 7, and the height of the feed roller 20 corresponds to the traction roller 10. The feed roller 20 is used to control the entry position of the purified plastic bag raw material.

[0026] Working principle of this utility model:

[0027] When the device is in use, the clean plastic bag to be processed is pulled through the feed roller 20 and the two sealing rollers 6 in sequence to the outside of the traction roller 10, and the movable seat 8 and the traction roller 10 are driven to rotate by the traction motor 9, and the movable seat 8 drives the pin rod 15 to rotate, and the pin rod 15 drives the pressing plate 16 and the protrusion 17 to rotate. When the protrusion 17 rotates to the inside of the fixed plate 14, the protrusion 17 is squeezed by the fixed plate 14 and moves inward, and the protrusion 17 drives the pressing plate 16 to move inward. The pressing plate 16 presses the clean plastic bag against the outside of the traction roller 10 through one end of its "L" structure. At this time, the traction roller 10 can drive the clean plastic bag to move. When the protrusion 17 moves and separates from the fixed plate 14, the pin rod 15 is reset under the action of the torsion spring, and the pressing plate 16 releases the pressure on the clean plastic bag. In this process, the telescopic gas rod 12 can drive the cutter 13 to move downward to achieve edge trimming of the clean plastic bag.

[0028] During the traction movement of the purified plastic bag, the slider 4 is subjected to a force in the direction of the purified plastic bag under the action of the spring 5, and the slider 4 can drive the sealing rollers 6 to move, so that the two sealing rollers 6 clamp the purified plastic bag. At this time, the sealing rollers 6 rotate along with the movement of the purified plastic bag. When the electric heating plate 19 on the outside of the sealing rollers 6 contacts the purified plastic bag, it can heat and seal the purified plastic bag.

[0029] Finally, it should be noted that the above is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the aforementioned embodiments, it is still possible for those skilled in the art to modify the technical solutions described in the aforementioned embodiments, or to make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present utility model shall be included in the protection scope of the present utility model.

Claims

1. A sealing and trimming device for a clean plastic bag, comprising a base (1), characterized in that: A fixing frame (2) is fixedly provided in the middle of the upper surface of the base (1), and both ends of the outer wall of the fixing frame (2) are penetrated with a slide groove (3), and a slider (4) is penetrated inside the slide groove (3), and a spring (5) is provided between the top of the slider (4) and the inner wall of the slide groove (3), and a sealing roller (6) is movably provided on the inner side of the slider (4) through a bearing, and an extension frame (7) is fixedly provided on one side of the fixing frame (2), and a movable seat (8) is movably provided on the inner side of the extension frame (7) through a bearing. ), a traction motor (9) is fixedly provided at one end of the outer wall of the extension frame (7), and the output shaft of the traction motor (9) is fixedly connected to the outer side of the movable seat (8), a traction roller (10) is fixedly provided on the inner side of the movable seat (8), a knife holder (11) is fixedly provided on the outer side of the extension frame (7), a telescopic gas rod (12) is fixedly provided on the outer wall of the knife holder (11), a cutter (13) is fixedly provided on the output shaft of the telescopic gas rod (12), and the cutter (13) is arranged on the outer side of the traction roller (10).

2. The sealing and trimming device for a clean plastic bag according to claim 1, characterized in that: Fixed plates (14) are fixedly arranged at both ends of the inner side of the tool holder (11), and the fixed plates (14) are arranged as an arc-shaped structure.

3. The sealing and trimming device for a clean plastic bag according to claim 2, characterized in that: A plurality of pins (15) are arranged around the inner wall of the movable seat (8), and a torsion spring is arranged around the outer side of the pin (15). A pressure plate (16) with an arc structure is fixedly arranged at one end of the pin (15), and the pressure plate (16) is arranged in an "L"-shaped structure.

4. The sealing and trimming device for a clean plastic bag according to claim 3, characterized in that: A protrusion (17) is fixedly provided in the middle of the outer side wall of the pressing plate (16), and the position of the protrusion (17) corresponds to that of the fixing plate (14).

5. The sealing and trimming device for a clean plastic bag according to claim 4, characterized in that: A groove (18) with a "convex" structure is provided in the middle of the outer wall of the sealing roller (6), and an electric heating plate (19) is fixedly arranged inside the groove (18).

6. The sealing and trimming device for a clean plastic bag according to claim 5, characterized in that: A feed roller (20) is arranged at the middle of one side of the fixed frame (2) away from the extension frame (7), and the height of the feed roller (20) corresponds to that of the traction roller (10).

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