Thermoplastic sealing machine for packaging bag production

Abstract

The utility model discloses a thermoplastic sealing machine for packaging bag production, which relates to the technical field of packaging bag production equipment and comprises a workbench, a driving mechanism is arranged on the front side of the workbench and comprises a supporting plate, the supporting plate is fixedly connected to the front side of the top of the workbench, and a sliding groove is formed in the top of the supporting plate. A reciprocating mechanism is arranged on the front side of the top of the workbench and comprises a rocker, the rocker is rotationally connected to the top of the supporting plate, a limiting groove is formed in the rocker, and a sliding rod is slidably connected to the inner surface of the limiting groove. The device has the beneficial effects that a transverse plate and an extension plate of the device can intermittently push a packaging bag on the fixing table to the center, a second clamping plate and a first clamping plate clamp the top of the packaging bag pushed to the center of the fixing table, and two heating strips conduct heating plastic packaging on the top of the packaging bag while clamping is conducted; and the swing frequency of the transverse plate and the extension plate is consistent with the clamping frequency of the first clamping plate and the second clamping plate, so that the packaging bag is automatically sealed, and the working efficiency is improved.

Description

Technical Field

[0001] This utility model relates to the technical field of packaging bag production equipment, and in particular to a thermoplastic sealing machine for packaging bag production. Background Technology

[0002] Plastic packaging bags are packaging bags made of plastic as raw material, used in the production of various daily necessities. They are widely used in daily life and industrial production. Most commonly used plastic packaging bags are made of polyethylene film, which is non-toxic and therefore can be used to hold food.

[0003] For example, patent document CN222698838U discloses a thermoplastic sealing machine for packaging bag production, including a frame, a tray fixedly mounted on the top of the frame, two thermoplastic strips fixedly mounted on one side of the frame, and a sealing conveying mechanism inside the frame. The sealing conveying mechanism includes a drive shaft and a driven shaft, both located inside the frame. When the sealing area of ​​the packaging bag body is moved between the two thermoplastic strips by the lower and upper pressure belts, the sealing area of ​​the packaging bag body is heated and fused together, achieving the purpose of sealing. At the same time, as the conveyor belt continues to convey, the sealed packaging bag body is sent out of the thermoplastic sealing area, facilitating the sealing of subsequent packaging bags, thus achieving the purpose of automatically sealing the packaging bag body, reducing manual labor, and improving sealing efficiency.

[0004] The device uses a sealing method that seals moving packaging bags. If the lower and upper pressure belts shift when pressing the sealing area of ​​the packaging bag during the bag's movement, it will cause the seal to tilt or leak, resulting in a decrease in the yield rate. Utility Model Content

[0005] The purpose of this utility model is to provide a thermoplastic sealing machine for packaging bag production in order to solve the above-mentioned problems.

[0006] This utility model achieves the above objectives through the following technical solutions:

[0007] A thermoplastic sealing machine for packaging bag production includes a worktable. A drive mechanism is provided on the front side of the worktable. The drive mechanism includes a support plate, which is fixedly connected to the top front side of the worktable. A slide groove is provided on the top of the support plate. A reciprocating mechanism is provided on the top front side of the worktable. The reciprocating mechanism includes a rocker arm, which is rotatably connected to the top of the support plate. A limit groove is provided on the rocker arm. A slide rod is slidably connected to the inner surface of the limit groove. The bottom of the slide rod is slidably connected to the surface of the slide groove. A moving block is slidably connected to the top of the support plate. Two limit rods are fixedly connected to the opposite surfaces of the two moving blocks. The top of the slide rod is slidably connected to the surface of the limit rod. A slide bar is slidably connected to the top of the moving block. The top of the slide rod is fixedly connected to the slide bar. A fixed platform is fixedly connected to the top of the worktable. A pushing mechanism is provided on the rear side of the reciprocating mechanism. A synchronization mechanism is provided on the top of the worktable. A drive mechanism is used to drive the synchronization mechanism to rotate. An elastic mechanism is provided on the top of the worktable. A transmission mechanism is provided on one side of the elastic mechanism. A heating mechanism is provided at the front end of the transmission mechanism.

[0008] Preferably, the drive mechanism includes a motor, which is fixedly connected to the bottom front side of the worktable, and a rotating shaft is fixedly connected to the output end of the motor, with the top of the rotating shaft fixedly connected to a rocker arm.

[0009] Preferably, the pushing mechanism includes several connecting rods, which are fixedly connected to the top of the slide bar. A horizontal plate is fixedly connected to the rear side of the connecting rods, and several extension plates are fixedly connected to the rear side of the horizontal plate.

[0010] Preferably, the synchronization mechanism includes a drive wheel, which is fixedly connected to a rotating shaft. A timing belt is connected to the drive wheel, and a driven wheel is connected to the rear end of the timing belt. A column is fixedly connected to the driven wheel, and the bottom of the column is rotatably connected to the top of the worktable. An eccentric wheel is fixedly connected to the column.

[0011] Preferably, the elastic mechanism includes a fixed plate, which is fixedly connected to the top rear side of the worktable. Several damping rods are fixedly connected to the front side of the fixed plate, and contact plates are fixedly connected to the front ends of the damping rods. Several springs are fixedly connected to the front side of the fixed plate, and the front ends of the springs are fixedly connected to the contact plates.

[0012] Preferably, the transmission mechanism includes a first rack, which is fixedly connected to the front side of the contact plate. A gear meshes with the side of the first rack away from the center of the worktable, and a second rack meshes with the side of the gear away from the first rack. A first guide rod is fixedly connected to the second rack, and a first clamping plate is fixedly connected to the front side of the first guide rod.

[0013] Preferably, the heating mechanism includes a support frame, which is fixedly connected to the top of the workbench. A first guide rod is slidably connected to one side of the support frame, and a second guide rod is slidably connected to the side of the support frame near the synchronous belt. The outer surface of the second guide rod is slidably connected to the first clamping plate, and a second clamping plate is fixedly connected to the front end of the second guide rod. Heating strips are fixedly connected to the opposite surfaces of the second clamping plate and the first clamping plate.

[0014] The beneficial effects are as follows: the horizontal plate and the extension plate of the device intermittently push the packaging bag on the fixed platform toward the center. The second clamping plate and the first clamping plate clamp the top of the packaging bag pushed to the center of the fixed platform. At the same time as clamping, two heating strips heat and seal the top of the packaging bag. The swing frequency of the horizontal plate and the extension plate is consistent with the clamping frequency of the first clamping plate and the second clamping plate to automatically seal the packaging bag, thereby improving work efficiency.

[0015] The additional technical features and advantages of this utility model will become more apparent from the following description, or may be learned through specific practice of this utility model. Attached Figure Description

[0016] The accompanying drawings are provided to further illustrate the present invention and form part of the specification. They are used together with the following detailed description to explain the present invention, but do not constitute a limitation thereof. In the drawings:

[0017] Figure 1 This is a front perspective view of the thermoplastic sealing machine for producing packaging bags according to the present invention.

[0018] Figure 2 This is a top view of the thermoplastic sealing machine for producing packaging bags according to the present invention;

[0019] Figure 3 This is a partial three-dimensional structural view of the rear side of a thermoplastic sealing machine for producing packaging bags according to the present invention;

[0020] Figure 4 This is a partial three-dimensional structural view of the front side of a thermoplastic sealing machine for producing packaging bags according to the present invention;

[0021] Figure 5 This is a partial front sectional view of a thermoplastic sealing machine for producing packaging bags according to the present invention;

[0022] Figure 6 This utility model describes a thermoplastic sealing machine for producing packaging bags. Figure 4 Enlarged view of point A in the middle.

[0023] The reference numerals in the attached drawings are explained as follows: 1. Workbench; 201. Support plate; 202. Motor; 203. Rotating shaft; 204. Slide groove; 301. Rocker arm; 302. Limiting groove; 303. Slide rod; 304. Moving block; 305. Limiting rod; 306. Slide bar; 401. Connecting rod; 402. Horizontal plate; 403. Extension plate; 5. Fixed platform; 601. Driving wheel; 602. Synchronous belt; 603. Driven wheel; 604. Column; 605. Eccentric wheel; 701. Fixed plate; 702. Damping rod; 703. Spring; 704. Contact plate; 801. First rack; 802. Gear; 803. Second rack; 804. First guide rod; 805. First clamping plate; 901. Support frame; 902. Second guide rod; 903. Second clamping plate; 904. Heating bar. Detailed Implementation

[0024] 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.

[0025] In the description of this utility model, 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 utility model 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 utility model.

[0026] The present invention will be further described below with reference to the accompanying drawings:

[0027] like Figures 1-6As shown, a thermoplastic sealing machine for packaging bag production includes a worktable 1. A drive mechanism is provided on the front side of the worktable 1. The drive mechanism includes a support plate 201, which is fixedly connected to the top front side of the worktable 1. A slide groove 204 is provided on the top of the support plate 201. A reciprocating mechanism is provided on the top front side of the worktable 1. The reciprocating mechanism includes a rocker arm 301, which is rotatably connected to the top of the support plate 201. A limit groove 302 is provided on the rocker arm 301. A slide rod 303 is slidably connected to the inner surface of the limit groove 302. The bottom of the slide rod 303 is slidably connected to the surface of the slide groove 204. A moving block 304 is slidably connected to the top of the support plate 201. Two limit rods 30 are fixedly connected to the opposite surfaces of the two moving blocks 304. 5. The top of the slide rod 303 is slidably connected to the surface of the limiting rod 305. The top of the moving block 304 is slidably connected to the slide bar 306. The top of the slide rod 303 is fixedly connected to the slide bar 306. The rocker arm 301 rotates to drive the slide rod 303 to slide in the slide groove 204 and the limiting groove 302. The sliding of the slide rod 303 will drive the two moving blocks 304 to slide on the top of the support plate 201 through the slide bar 306. The top of the worktable 1 is fixedly connected to the fixed platform 5. A pushing mechanism is provided on the rear side of the reciprocating mechanism. A synchronization mechanism is provided on the top of the worktable 1. The driving mechanism is used to drive the synchronization mechanism to rotate. An elastic mechanism is provided on the top of the worktable 1. A transmission mechanism is provided on one side of the elastic mechanism. A heating mechanism is provided at the front end of the transmission mechanism.

[0028] The drive mechanism includes a motor 202, which is fixedly connected to the bottom front side of the worktable 1. The output end of the motor 202 is fixedly connected to a rotating shaft 203, and the top of the rotating shaft 203 is fixedly connected to a rocker arm 301. When the motor 202 is started, the motor 202 drives the rocker arm 301 to rotate through the rotating shaft 203.

[0029] The pushing mechanism includes several connecting rods 401, which are fixedly connected to the top of the slide bar 306. A horizontal plate 402 is fixedly connected to the rear side of the connecting rod 401, and several extension plates 403 are fixedly connected to the rear side of the horizontal plate 402. When the slide bar 306 slides, it will drive the horizontal plate 402 and the extension plates 403 to move through the connecting rods 401. Due to the limiting effect of the slide groove 204 on the slide bar 303, the rotation trajectory of the horizontal plate 402 and the extension plates 403 is consistent with the opening trajectory of the slide groove 204.

[0030] The synchronization mechanism includes a drive wheel 601, which is fixedly connected to the rotating shaft 203. A timing belt 602 is connected to the drive wheel 601, and a driven wheel 603 is connected to the rear end of the timing belt 602. A column 604 is fixedly connected to the driven wheel 603, and the bottom of the column 604 is rotatably connected to the top of the worktable 1. An eccentric wheel 605 is fixedly connected to the column 604. When the rotating shaft 203 rotates, it also drives the drive wheel 601 to rotate. The rotation of the drive wheel 601 drives the driven wheel 603 to rotate through the timing belt 602, and the rotation of the driven wheel 603 drives the eccentric wheel 605 to rotate through the column 604.

[0031] The elastic mechanism includes a fixed plate 701, which is fixedly connected to the top rear side of the worktable 1. Several damping rods 702 are fixedly connected to the front side of the fixed plate 701. A contact plate 704 is fixedly connected to the front end of the damping rods 702. Several springs 703 are fixedly connected to the front side of the fixed plate 701. The front end of the springs 703 is fixedly connected to the contact plate 704. When the eccentric wheel 605 rotates, it will intermittently push the contact plate 704 to move to the rear side. When the contact plate 704 moves, it will compress the damping rods 702 and the springs 703.

[0032] The transmission mechanism includes a first rack 801, which is fixedly connected to the front side of the contact plate 704. A gear 802 meshes with the side of the first rack 801 away from the center of the worktable 1. A second rack 803 meshes with the side of the gear 802 away from the first rack 801. A first guide rod 804 is fixedly connected to the second rack 803. A first clamping plate 805 is fixedly connected to the front side of the first guide rod 804. The first rack 801 moves backward, which drives the second rack 803 to move forward through the gear 802. The second rack 803 moves forward, which drives the first clamping plate 805 to move forward through the first guide rod 804.

[0033] The heating mechanism includes a support frame 901, which is fixedly connected to the top of the workbench 1. A first guide rod 804 is slidably connected to one side of the support frame 901. A second guide rod 902 is slidably connected to the side of the support frame 901 near the synchronous belt 602. The outer surface of the second guide rod 902 is slidably connected to the first clamping plate 805. A second clamping plate 903 is fixedly connected to the front end of the second guide rod 902. Heating strips 904 are fixedly connected to the opposite surfaces of the second clamping plate 903 and the first clamping plate 805. The first clamping plate 805 and the second clamping plate 903 move relative to each other to clamp the top of the packaging bag pushed to the center of the fixed platform 5. At the same time as clamping, the two heating strips 904 heat and seal the top of the packaging bag.

[0034] Working principle: When using this device, the operator first starts the motor 202. The motor 202 drives the rocker arm 301 to rotate through the rotating shaft 203. The rotation of the rocker arm 301 causes the slide bar 303 to slide in the slide groove 204 and the limiting groove 302. The sliding of the slide bar 303 will drive the two moving blocks 304 to slide on the top of the support plate 201 through the slide bar 306. When the slide bar 306 slides, it will drive the horizontal plate 402 and the extension plate 403 to move through the connecting rod 401. Due to the limiting effect of the slide groove 204 on the slide bar 303, the rotation trajectory of the horizontal plate 402 and the extension plate 403 is consistent with the opening trajectory of the slide groove 204.

[0035] The operator then places the packaging bags one by one on the fixed platform 5, and the extension plate 403 will intermittently push the packaging bags on the fixed platform 5 to the other side.

[0036] As the shaft 203 rotates, it also drives the drive wheel 601 to rotate. The rotation of the drive wheel 601 drives the driven wheel 603 to rotate via the synchronous belt 602. The rotation of the driven wheel 603 drives the eccentric wheel 605 to rotate via the column 604. The rotation of the eccentric wheel 605 intermittently pushes the contact plate 704 to move backward. The backward movement of the contact plate 704 drives the second clamping plate 903 to move backward via the second guide rod 902. When the contact plate 704 moves, it compresses the damping rod 702 and the spring 703, and also drives the first rack 801 to move backward. The backward movement of the first rack 801 is transmitted through the gear 802. The second rack 803 is moved forward, and the movement of the second rack 803 forward drives the first clamping plate 805 to move forward through the first guide rod 804. At this time, the first clamping plate 805 and the second clamping plate 903 move relative to each other, clamping the top of the packaging bag pushed to the center of the fixed platform 5. While clamping, the two heating strips 904 heat and seal the top of the packaging bag. The swing frequency of the horizontal plate 402 and the extension plate 403 is consistent with the clamping frequency of the first clamping plate 805 and the second clamping plate 903 to automatically seal the packaging bag. After sealing, the packaging bag will be pushed away from the fixed platform 5 by the extension plate 403.

[0037] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model.

Claims

1. A thermoplastic sealing machine for producing packaging bags, comprising a workbench (1), characterized in that: A driving mechanism is provided on the front side of the workbench (1). The driving mechanism includes a support plate (201), which is fixedly connected to the top front side of the workbench (1). A slide groove (204) is provided on the top of the support plate (201). A reciprocating mechanism is provided on the top front side of the workbench (1). The reciprocating mechanism includes a rocker arm (301), which is rotatably connected to the top of the support plate (201). A limit groove (302) is provided on the rocker arm (301). A slide rod (303) is slidably connected to the inner surface of the limit groove (302). The bottom of the slide rod (303) is slidably connected to the surface of the slide groove (204). A moving block is slidably connected to the top of the support plate (201). 304), two limiting rods (305) are fixedly connected to the opposite surfaces of the two moving blocks (304), the top of the slide rod (303) is slidably connected to the surface of the limiting rod (305), the top of the moving block (304) is slidably connected to the slide bar (306), the top of the slide rod (303) is fixedly connected to the slide bar (306), the top of the worktable (1) is fixedly connected to the fixed platform (5), the rear side of the reciprocating mechanism is provided with a pushing mechanism, the top of the worktable (1) is provided with a synchronization mechanism, the driving mechanism is used to drive the synchronization mechanism to rotate, the top of the worktable (1) is provided with an elastic mechanism, one side of the elastic mechanism is provided with a transmission mechanism, and the front end of the transmission mechanism is provided with a heating mechanism.

2. The thermoplastic sealing machine for packaging bag production according to claim 1, characterized in that: The driving mechanism includes a motor (202), which is fixedly connected to the bottom front side of the workbench (1). The output end of the motor (202) is fixedly connected to a rotating shaft (203), and the top of the rotating shaft (203) is fixedly connected to the rocker arm (301).

3. The thermoplastic sealing machine for packaging bag production according to claim 2, characterized in that: The pushing mechanism includes several connecting rods (401), which are fixedly connected to the top of the slide bar (306). A horizontal plate (402) is fixedly connected to the rear side of the connecting rod (401), and several extension plates (403) are fixedly connected to the rear side of the horizontal plate (402).

4. A thermoplastic sealing machine for producing packaging bags according to claim 3, characterized in that: The synchronization mechanism includes a drive wheel (601), which is fixedly connected to the rotating shaft (203). A timing belt (602) is connected to the drive wheel (601), and a driven wheel (603) is connected to the rear end of the timing belt (602). A column (604) is fixedly connected to the driven wheel (603), and the bottom of the column (604) is rotatably connected to the top of the workbench (1). An eccentric wheel (605) is fixedly connected to the column (604).

5. A thermoplastic sealing machine for producing packaging bags according to claim 4, characterized in that: The elastic mechanism includes a fixed plate (701), which is fixedly connected to the top rear side of the workbench (1). A plurality of damping rods (702) are fixedly connected to the front side of the fixed plate (701). A contact plate (704) is fixedly connected to the front end of the damping rods (702). A plurality of springs (703) are fixedly connected to the front side of the fixed plate (701). The front end of the springs (703) is fixedly connected to the contact plate (704).

6. A thermoplastic sealing machine for producing packaging bags according to claim 5, characterized in that: The transmission mechanism includes a first rack (801), which is fixedly connected to the front side of the contact plate (704). A gear (802) meshes with the side of the first rack (801) away from the center of the worktable (1). A second rack (803) meshes with the side of the gear (802) away from the first rack (801). A first guide rod (804) is fixedly connected to the second rack (803). A first clamping plate (805) is fixedly connected to the front side of the first guide rod (804).

7. A thermoplastic sealing machine for producing packaging bags according to claim 6, characterized in that: The heating mechanism includes a support frame (901) which is fixedly connected to the top of the workbench (1). The first guide rod (804) is slidably connected to one side of the support frame (901). A second guide rod (902) is slidably connected to the side of the support frame (901) near the synchronous belt (602). The outer surface of the second guide rod (902) is slidably connected to the first clamping plate (805). A second clamping plate (903) is fixedly connected to the front end of the second guide rod (902). Heating strips (904) are fixedly connected to the opposite surfaces of the second clamping plate (903) and the first clamping plate (805).

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