Thermoplastic sealing device of plastic woven packaging bag

Abstract

The utility model discloses a thermoplastic sealing device for plastic woven packaging bags, which belongs to the technical field of thermoplastic equipment and comprises a base, a frame fixedly connected to the surface of the base, a top plate fixedly connected to the top end of the frame, a support frame mounted on the lower surface of the top plate and a thermoplastic plate in transmission connection with the inside of the support frame. The surface of the base is fixedly connected with a telescopic connecting rod. The two traction frames are held by hands and pulled towards the middle position, the supporting seat drives the guide rod to horizontally slide relative to the carrying table, the reset spring B elastically deforms within the elastic limit, the positioning block is separated from the positioning groove with the initial height, then the carrying table is pushed and pulled relative to the longitudinal position of the base, and the length of the telescopic connecting rod and the telescopic frame changes. After the height of the carrying table is adjusted, the pulling force on the traction frame is removed, and the positioning block is inserted into the other positioning groove of the rack under the elastic force action of the reset spring B, so that the height of the carrying table is limited, and plastic woven packaging bags are conveniently placed and subjected to heat sealing treatment.

Description

Technical Field

[0001] The utility model relates to the technical field of thermoplastic equipment, and more particularly to a thermoplastic sealing device for a plastic woven packaging bag. Background Art

[0002] Plastic packaging bags are made of plastic and are used to produce various daily necessities. They are widely used in daily life and industrial production. However, this temporary convenience brings long-term harm. After filling the plastic woven packaging bag with materials, the opening of the bag needs to be thermoplastically sealed.

[0003] A search revealed a device with the existing announcement number CN204871790U, which is used in bagged material filling and sealing machines to perform interlayer hot-melt sealing on double-layer composite bags, where an inner plastic bag is hot-melt-lined onto an outer woven bag. The device primarily consists of a machine base, an upper base, a guide and pressure belt drive fixing block, a clamping cylinder, a clamping trapezoidal slide rail, a guide and pressure belt drive, a clamping heat-conducting block, a clamping cylinder fixing block, a clamping strip, and a guide and pressure belt unit. This device hot-melt-seals the inner bag of a composite packaging bag containing an outer woven bag and an inner plastic bag, achieving mechanized bag opening, filling, and inner plastic bag hot-melt sealing operations. It boasts high efficiency, excellent bag sealing and preservation properties, and promising prospects for widespread application.

[0004] For common thermoplastic machines, it is not convenient to adjust the height of the frame, which will affect the sealing effect for plastic woven packaging bags of different specifications. Therefore, we propose a thermoplastic sealing device for plastic woven packaging bags to solve the above problems. Utility Model Content

[0005] 1. Technical problems to be solved

[0006] In response to the problems existing in the prior art, the purpose of the present utility model is to provide a thermoplastic sealing device for plastic woven packaging bags. According to the specifications of the plastic woven packaging bags, the height of the carrier is first adjusted. At the initial position, the positioning block and the positioning slot of the frame are plugged into each other. Then, the two traction frames are held by hand and pulled toward the middle position. The support seat drives the guide rod to slide horizontally relative to the carrier. The reset spring B undergoes elastic deformation within the elastic limit. The positioning block disengages from the positioning slot at the initial height. Then, the carrier is pushed and pulled relative to the longitudinal position of the base. The length of the telescopic connecting rod and the telescopic frame changes. After the height of the carrier is adjusted, the pulling force on the traction frame is removed. Under the elastic force of the reset spring B, the positioning block is plugged into another positioning slot of the frame to complete the height limit of the carrier, which is convenient for placing the plastic woven packaging bags and performing heat sealing treatment on them.

[0007] 2. Technical solution

[0008] In order to solve the above problems, the present invention adopts the following technical solutions.

[0009] A thermoplastic sealing device for woven packaging bags comprises a base, a frame fixedly connected to the surface of the base, a top plate fixedly connected to the top of the frame, a support frame installed on the lower surface of the top plate, and a thermoplastic plate transmission-connected to the inside of the support frame; a telescopic connecting rod is fixedly connected to the surface of the base, the extended end of the telescopic connecting rod is fixedly connected to a carrier, guide rods are slidably inserted on both sides of the carrier, a return spring B is sleeved on the outside of the guide rod, the free end of the guide rod is fixedly connected to a support seat, a positioning block is fixedly connected to the outer wall of the support seat, and a traction frame is fixedly connected to the inner surface of the support seat.

[0010] Preferably, a clearance groove is provided on the surface of the carrier, and the traction frame is slidably arranged inside the clearance groove of the carrier.

[0011] Preferably, the bottom of the carrier is fixedly connected to a telescopic frame, the bottom end of the telescopic frame is fixedly connected to a base, and a mounting hole is provided on the surface of the base.

[0012] Preferably, a return spring A is sleeved on the outside of the telescopic connecting rod, and the telescopic connecting rod is located on the inner side of the telescopic frame.

[0013] Preferably, the top end of the return spring A is fixedly connected to the carrier, and the bottom end of the return spring A is fixedly connected to the base.

[0014] Preferably, the platform is vertically arranged at the inner side of the frame, and the inner surface of the frame is provided with positioning grooves at equal intervals.

[0015] Preferably, the support seat is located inside the frame, and the positioning block is plugged into and corresponds to the positioning slot of the frame.

[0016] 3. Beneficial effects

[0017] Compared with the prior art, the advantages of the present invention are:

[0018] (1) This solution first adjusts the height of the carrier according to the specifications of the plastic woven packaging bag. At the initial position, the positioning block and the positioning slot of the frame are plugged into each other. Then, the two traction frames are held by hand and pulled toward the middle position. The support seat drives the guide rod to slide horizontally relative to the carrier. The reset spring B undergoes elastic deformation within the elastic limit. The positioning block is separated from the positioning slot at the initial height. Then, the carrier is pushed and pulled relative to the longitudinal position of the base. The length of the telescopic connecting rod and the telescopic frame changes. After the height of the carrier is adjusted, the pulling force on the traction frame is removed. Under the elastic force of the reset spring B, the positioning block is plugged into another positioning slot of the frame to complete the height limit of the carrier, which is convenient for placing the plastic woven packaging bag and performing heat sealing treatment on it.

[0019] (2) The inner surface of the frame of this solution is provided with positioning grooves at equal intervals. During the height adjustment of the platform, the positioning grooves at different positions of the frame limit the positioning blocks of the support seat, which facilitates support and fixation and has good stability. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a schematic diagram of the three-dimensional structure of the utility model;

[0021] Figure 2 This is a schematic diagram of the base and top plate structure of the utility model;

[0022] Figure 3 This is a schematic diagram of the base and support frame structure of the utility model;

[0023] Figure 4 This is a schematic diagram of the telescopic connecting rod and the platform structure of the utility model.

[0024] Description of the numbers in the figure:

[0025] 1. Base; 2. Telescopic connecting rod; 3. Return spring A; 4. Carrier; 5. Telescopic frame; 6. Frame; 601. Positioning slot; 7. Top plate; 8. Support frame; 9. Thermoplastic plate; 10. Support seat; 11. Positioning block; 12. Guide rod; 13. Return spring B; 14. Traction frame. DETAILED DESCRIPTION

[0026] The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention; it is obvious that the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention.

[0027] Example 1:

[0028] See also Figure 1-4 A thermoplastic sealing device for a woven packaging bag comprises a base 1, a frame 6 fixedly connected to the surface of the base 1, a top plate 7 fixedly connected to the top of the frame 6, a support frame 8 installed on the lower surface of the top plate 7, and a thermoplastic plate 9 transmission-connected to the inside of the support frame 8. A telescopic link 2 is fixedly connected to the surface of the base 1, the extended end of the telescopic link 2 is fixedly connected to the carrier 4, guide rods 12 are slidably inserted on both sides of the carrier 4, a return spring B13 is sleeved on the outside of the guide rod 12, the free end of the guide rod 12 is fixedly connected to a support seat 10, a positioning block 11 is fixedly connected to the outer wall of the support seat 10, and a traction frame 14 is fixedly connected to the inner surface of the support seat 10.

[0029] A giveway groove is provided on the surface of the carrier 4, and the traction frame 14 is slidably arranged inside the giveway groove of the carrier 4. The bottom of the carrier 4 is fixedly connected with a telescopic frame 5, and the bottom end of the telescopic frame 5 is fixedly connected with the base 1. A mounting hole is provided on the surface of the base 1, and a return spring A3 is provided on the outside of the telescopic link 2. The telescopic link 2 is located on the inner side of the telescopic frame 5. The top end of the return spring A3 is fixedly connected to the carrier 4, and the bottom end of the return spring A3 is fixedly connected to the base 1.

[0030] It should be noted that, according to the specifications of the woven packaging bag, the height of the carrier 4 is adjusted first. At the initial position, the positioning block 11 and the positioning slot 601 of the frame 6 are plugged into each other, and then the two traction frames 14 are held by hand and pulled toward the middle position. The support seat 10 drives the guide rod 12 to slide horizontally relative to the carrier 4, and the reset spring B13 undergoes elastic deformation within the elastic limit. The positioning block 11 disengages from the positioning slot 601 at the initial height, and then pushes and pulls the carrier 4 relative to the longitudinal position of the base 1. The length of the telescopic connecting rod 2 and the telescopic frame 5 changes. After the height of the carrier 4 is adjusted, the pulling force on the traction frame 14 is removed. Under the elastic force of the reset spring B13, the positioning block 11 is plugged into the other positioning slot 601 of the frame 6, completing the height limit of the carrier 4, which is convenient for placing the woven packaging bag and performing heat sealing treatment on it.

[0031] See Figure 1-4 The carrier 4 is vertically arranged on the inner side of the frame 6. The inner surface of the frame 6 is provided with positioning grooves 601 at equal intervals. The support seat 10 is located on the inner side of the frame 6. The positioning block 11 is plugged into the positioning groove 601 of the frame 6.

[0032] It should be noted that positioning grooves 601 are equidistantly provided on the inner surface of the frame 6. During the height adjustment of the platform 4, the positioning grooves 601 at different positions of the frame 6 limit the positioning blocks 11 of the support seat 10, which facilitates support and fixation and has good stability.

[0033] When in use: According to the specifications of the woven packaging bag, first adjust the height of the carrier 4. At the initial position, the positioning block 11 and the positioning slot 601 of the frame 6 are plugged into each other. Then, hold the two traction frames 14 by hand and pull them to the middle position. The support seat 10 drives the guide rod 12 to slide horizontally relative to the carrier 4. The reset spring B13 is elastically deformed within the elastic limit. The positioning block 11 is separated from the positioning slot 601 at the initial height. Then, the carrier 4 is pushed and pulled relative to the longitudinal position of the base 1. The length of the telescopic connecting rod 2 and the telescopic frame 5 changes. After the height of the carrier 4 is adjusted, the pulling force on the traction frame 14 is removed, and under the elastic force of the reset spring B13, the positioning block 11 is inserted into another positioning groove 601 of the frame 6, completing the height limit of the carrier 4, which is convenient for placing the plastic woven packaging bags and performing heat sealing treatment on them; the inner surface of the frame 6 is provided with positioning grooves 601 at equal intervals. In the process of adjusting the height of the carrier 4, the positioning grooves 601 at different positions of the frame 6 limit the positioning block 11 of the support seat 10, which is convenient for support and fixation and has good stability.

[0034] The above description is merely a preferred embodiment of the present invention; however, the scope of protection of the present invention is not limited thereto. Any person skilled in the art who, within the technical scope disclosed in the present invention, makes equivalent substitutions or modifications based on the technical solutions and improved concepts of the present invention shall be covered by the scope of protection of the present invention.

Claims

1. A thermoplastic sealing device for woven packaging bags, comprising a base (1), a frame (6) fixedly connected to the surface of the base (1), a top plate (7) fixedly connected to the top of the frame (6), a support frame (8) mounted on the lower surface of the top plate (7), and a thermoplastic plate (9) transmission-connected to the interior of the support frame (8), characterized in that: The surface of the base (1) is fixedly connected with a telescopic connecting rod (2), the extended end of the telescopic connecting rod (2) is fixedly connected with a carrier (4), guide rods (12) are slidably inserted on both sides of the carrier (4), the outer portion of the guide rod (12) is provided with a reset spring B (13), the free end of the guide rod (12) is fixedly connected with a support seat (10), the outer wall of the support seat (10) is fixedly connected with a positioning block (11), and the inner surface of the support seat (10) is fixedly connected with a traction frame (14).

2. The thermoplastic sealing device for woven packaging bags according to claim 1, characterized in that: A clearance groove is provided on the surface of the carrier (4), and the traction frame (14) is slidably arranged inside the clearance groove of the carrier (4).

3. The thermoplastic sealing device for woven packaging bags according to claim 1, characterized in that: The bottom of the carrier (4) is fixedly connected to a telescopic frame (5), the bottom end of the telescopic frame (5) is fixedly connected to a base (1), and a mounting hole is provided on the surface of the base (1).

4. The thermoplastic sealing device for woven packaging bags according to claim 1, characterized in that: A return spring A (3) is sleeved on the outside of the telescopic connecting rod (2), and the telescopic connecting rod (2) is located inside the telescopic frame (5).

5. The thermoplastic sealing device for woven packaging bags according to claim 4, characterized in that: The top end of the return spring A (3) is fixedly connected to the carrier (4), and the bottom end of the return spring A (3) is fixedly connected to the base (1).

6. The thermoplastic sealing device for woven packaging bags according to claim 1, characterized in that: The carrier (4) is vertically arranged at an inner side of the frame (6), and positioning grooves (601) are equidistantly provided on the inner surface of the frame (6).

7. The thermoplastic sealing device for woven packaging bags according to claim 1, characterized in that: The support seat (10) is located inside the frame (6), and the positioning block (11) and the positioning slot (601) of the frame (6) are plugged into and correspond to each other.

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