Heat sealing device for sliding block bag production

Abstract

The heat sealing device comprises a base, an adjusting groove, a lower heat baffle and a supporting frame, a first supporting frame and a second supporting frame are fixedly connected to the front surface and the rear surface of the base from left to right correspondingly, a first electric push rod is fixedly connected to the bottom of the first supporting frame, and an upper heat sealing plate is fixedly connected to the bottom of the first electric push rod; a lower heat sealing plate is connected to the surface, under the upper heat sealing plate, of the base in an embedded mode, a supporting frame is fixedly connected to the center of the left side wall of the upper heat sealing plate, a second threaded rod is rotatably connected to the inner side of the supporting frame, a second moving block is in threaded connection to the surface of the second threaded rod, and an upper heat baffle is fixedly connected to the bottom of the second moving block; a lower heat shield is arranged on the surface of the base on the left side of the lower heat-sealing plate; the exhaust rods are arranged to slide from the center of the sliding block bag to the two sides of the sliding block bag, so that air between plastic of the sliding block bag is exhausted before heat sealing, the plastic is more normal, and the stability in the heat sealing process is guaranteed.

Description

Technical Field

[0001] This application relates to the technical field of slider bag production, and specifically relates to a heat-sealing device for slider bag production. Background Technique

[0002] Slider bags, as a common type of packaging bag, are widely used in multiple fields such as clothing, underwear, socks, towels, toys, stationery, etc. This type of bag is usually made of plastic, has transparent or semi-transparent characteristics, and realizes the self-sealing function through a slider zipper design, which is both convenient and practical. When processing slider bags, heat-sealing treatment is required, and the plastic is melted and connected together by heating and pressure.

[0003] Patent No. CN 213261394 U discloses a heat-sealing device for self-sealing bag production, including a preheating box, a fan, an electromagnetic coil, a pressing plate, etc. By setting up a preheating box, the heating tube is heated and raised in temperature through the electromagnetic coil, and the fan blows towards the heating tube, so that the heat on the heating tube is distributed to the self-sealing bag, which can realize the preliminary preheating treatment of the self-sealing bag and improve the heat-sealing effect of the heat-sealing device. By setting up the heat-sealing device and clamping parts, the user can stack multiple self-sealing bags through the clamping parts on the conveyor belt. The conveyor belt transports the stacked self-sealing bags to the lower part of the pressing plate, and the heat-sealing base is lowered by the telescopic rod, and the heating and heat-conducting needle is used for heat-sealing the self-sealing bag, eliminating the need for manual processing operations, improving the automation of the heat-sealing setting, and improving the product quality and production rate.

[0004] However, in use, it has the following defects:

[0005] Although the preheating box blows downward to preheat, during the preheating process, there may be air between multiple layers of bags, causing the bags to lift, so that they cannot be aligned, affecting the heat-sealing effect. Utility Model Content

[0006] The purpose of this application is to provide a heat-sealing device for slider bag production, which solves the problem that although the preheating box blows downward for preheating in the background technique, during the preheating process, there may be air between multiple layers of bags, causing the bags to lift, so that they cannot be aligned, affecting the heat-sealing effect.

[0007] To achieve the above object, the present application provides the following technical solution: A heat-sealing device for slider bag production, including a base, an adjustment groove, a lower heat-insulating plate, and a support frame. On the front and rear surfaces of the base, a first support frame and a second support frame are fixedly connected from left to right respectively. At the bottom of the first support frame, a first electric push rod is fixedly connected. At the bottom of the first electric push rod, an upper heat-sealing plate is fixedly connected. On the surface of the base directly below the upper heat-sealing plate, a lower heat-sealing plate is inlaid and connected. In the center of the left side wall of the upper heat-sealing plate, a support frame is fixedly connected. Inside the support frame, a second threaded rod is rotatably connected. On the surface of the second threaded rod, a second moving block is threadedly connected. At the bottom of the second moving block, an upper heat-insulating plate is fixedly connected. On the surface of the base to the left of the lower heat-sealing plate, a lower heat-insulating plate is placed. At the front edge of the surface of the lower heat-insulating plate, a convex block is fixedly connected. On the left side of the front surface of the base, a side groove is opened. Inside the side groove, a first threaded rod is rotatably connected. On the surface of the first threaded rod, a first moving block is threadedly connected. At the top of the first moving block, a connecting block is fixedly connected, and the upper end of the connecting block is fixedly connected to the convex block. At the center of the bottom of the second support frame, a second electric push rod is fixedly connected. At the bottom of the second electric push rod, an adjustment groove is fixedly connected. Inside the adjustment groove, a bidirectional lead screw is rotatably connected. On both sides of the surface of the bidirectional lead screw, a threaded block is threadedly connected. At the bottom of the threaded block, an exhaust rod is fixedly connected.

[0008] In this technical solution, after the second electric push rod is started, it drives the adjustment groove to descend until the exhaust rod fits with the plastic and the base. Then, after the first motor is started, it drives the bidirectional lead screw to rotate, so that the threaded block drives the exhaust rod to move from the center of the base to both sides. During the movement, the air in the plastic will be discharged, thus ensuring the flatness of the plastic and the quality and stability of heat-sealing. The upper heat-sealing plate and the lower heat-sealing plate are heated by square heating wires to perform heat-sealing treatment on the plastic. Through the upper heat-insulating plate and the lower heat-insulating plate, the width of the heat-sealing area can be set. After the third motor is started, it drives the second threaded rod to rotate, so that the second moving block and the upper heat-insulating plate move left and right. At the same time, the second motor is started to drive the first threaded rod to rotate, so that the first moving block and the lower heat-insulating plate move left and right. The upper heat-insulating plate and the lower heat-insulating plate can respectively block the upper heat-sealing plate and the lower heat-sealing plate, so as to change the width during heat-sealing, adapt to different heat-sealing processing requirements, and improve the heat-sealing efficiency and practicability of the device.

[0009] As an alternative embodiment of the technical solution of the present application, the top of the upper heat-insulating plate fits with the bottom of the upper heat-sealing plate, the bottom of the lower heat-insulating plate fits with the surface of the base, and square heating wires are fixedly connected inside the upper heat-sealing plate and the lower heat-sealing plate.

[0010] As an alternative embodiment of the technical solution of the present application, conveying rollers are movably connected to both left and right ends of the base.

[0011] As an alternative embodiment of the technical solution of the present application, a first motor is fixedly connected to the outer surface of one end of the adjustment groove, and the tail end of the transmission shaft of the first motor is fixedly connected to one end of the bidirectional lead screw.

[0012] As an alternative embodiment of the technical solution of the present application, a second motor is fixedly connected to the left side wall of the base facing the left end of the first threaded rod, and the tail end of the transmission shaft of the second motor is fixedly connected to the left end of the first threaded rod.

[0013] As an alternative embodiment of the technical solution of the present application, a third motor is fixedly connected to the outer surface of the left end of the support frame, and the tail end of the transmission shaft of the third motor is fixedly connected to the left end of the second threaded rod.

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

[0015] 1. In the present application, through the second electric push rod, the adjustment groove, the bidirectional lead screw and the exhaust rod, the plastic can be degassed. After the second electric push rod is started, it drives the adjustment groove to descend until the exhaust rod fits with the plastic and the base. Then, after the first motor is started, it drives the bidirectional lead screw to rotate, so that the threaded block drives the exhaust rod to move from the center of the base to both sides. During the movement, the air in the plastic will be discharged, thus ensuring the flatness of the plastic and the quality and stability of heat sealing.

[0016] 2. In the present application, through the upper heat shielding plate and the lower heat shielding plate, the width of the heat sealing area can be set. After the third motor is started, it drives the second threaded rod to rotate, so that the second moving block and the upper heat shielding plate move left and right. At the same time, the second motor is started to drive the first threaded rod to rotate, so that the first moving block and the lower heat shielding plate move left and right. The upper heat shielding plate and the lower heat shielding plate can respectively block the upper heat sealing plate and the lower heat sealing plate, so as to change the width during heat sealing, meet different heat sealing processing requirements, and improve the heat sealing efficiency and practicability of the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] By reading the detailed description of the non-limiting embodiments with reference to the following drawings, other features, objects and advantages of the present application will become more apparent:

[0018] Figure 1 It is an overall view of a heat sealing device for producing slider bags according to the present application;

[0019] Figure 2 It is a schematic diagram of the overall sectional structure of a heat sealing device for producing slider bags according to the present application;

[0020] Figure 3 It is a schematic diagram of the structure at the first motor of a heat sealing device for producing slider bags according to the present application;

[0021] Figure 4Schematic diagram of partial enlargement at location A of a heat-sealing device for producing slider bags in this application;

[0022] Figure 5 Schematic diagram of partial enlargement at location B of a heat-sealing device for producing slider bags in this application.

[0023] In the figure: 1, base; 2, first support frame; 3, second support frame; 4, conveying roller; 5, upper heat shield; 501, lower heat shield; 6, supply power source; 7, first electric push rod; 8, upper heat-sealing plate; 9, lower heat-sealing plate; 10, square heating wire; 11, second electric push rod; 12, adjustment groove; 13, bidirectional lead screw; 131, first motor; 14, threaded block; 15, exhaust rod; 16, side groove; 17, first threaded rod; 18, first moving block; 19, connecting block; 20, convex block; 21, second motor; 22, support frame; 23, second threaded rod; 231, third motor; 24, second moving block. Detailed implementation manners

[0024] In order to make the technical means, creative features, achieved purposes and functions of the present utility model easy to understand, the following will be further elaborated in combination with specific implementation manners.

[0025] As Figure 1 shown, a heat-sealing device for producing slider bags includes a base 1, an adjustment groove 12, a lower heat shield 501 and a support frame 22. The front and rear surfaces of the base 1 are respectively fixedly connected with a first support frame 2 and a second support frame 3 from left to right, and conveying rollers 4 are movably connected to both left and right ends of the base 1.

[0026] As Figure 2 shown, the bottom of the first support frame 2 is fixedly connected with a first electric push rod 7, the bottom of the first electric push rod 7 is fixedly connected with an upper heat-sealing plate 8, the lower heat-sealing plate 9 is inlaid and connected to the surface of the base 1 directly below the upper heat-sealing plate 8, and square heating wires 10 are fixedly connected to the inner sides of the upper heat-sealing plate 8 and the lower heat-sealing plate 9. The upper heat-sealing plate 8 and the lower heat-sealing plate 9 have the same size, and the plastic of the slider bag will be heat-sealed during the extrusion process.

[0027] As Figure 2 shown, the bottom center of the second support frame 3 is fixedly connected with a second electric push rod 11, the bottom of the second electric push rod 11 is fixedly connected with an adjustment groove 12, a bidirectional lead screw 13 is rotatably connected to the inside of the adjustment groove 12, threaded blocks 14 are threadedly connected to both sides of the surface of the bidirectional lead screw 13, and exhaust rods 15 are fixedly connected to the bottoms of the threaded blocks 14. The exhaust rods 15 slide from the center of the plastic to both sides, so that the air can be squeezed out from both sides.

[0028] As Figure 2 and Figure 3As shown, one end of the outer surface of the adjustment groove 12 is fixedly connected to a first motor 131, and the tail end of the transmission shaft of the first motor 131 is fixedly connected to one end of a bidirectional lead screw 13.

[0029] As Figure 2 and Figure 4 As shown, a lower heat insulation plate 501 is placed on the surface of the base 1 on the left side of the lower heat-sealing plate 9. The bottom of the lower heat insulation plate 501 is attached to the surface of the base 1. A convex block 20 is fixedly connected to the front edge of the surface of the lower heat insulation plate 501. The thickness of the lower heat insulation plate 501 is relatively thin, so it will not affect the extrusion heat-sealing of the plastic. A side groove 16 is opened on the left side of the front surface of the base 1. A first threaded rod 17 is rotatably connected to the inside of the side groove 16. A first moving block 18 is threadedly connected to the surface of the first threaded rod 17. The top of the first moving block 18 is fixedly connected to a connecting block 19, and the upper end of the connecting block 19 is fixedly connected to the convex block 20. A second motor 21 is fixedly connected to the left side wall of the base 1 facing the left end of the first threaded rod 17. The tail end of the transmission shaft of the second motor 21 is fixedly connected to the left end of the first threaded rod 17.

[0030] As Figure 5 As shown, a support frame 22 is fixedly connected to the center of the left side wall of the upper heat-sealing plate 8. A second threaded rod 23 is rotatably connected to the inside of the support frame 22. A second moving block 24 is threadedly connected to the surface of the second threaded rod 23. The bottom of the second moving block 24 is fixedly connected to an upper heat insulation plate 5. The top of the upper heat insulation plate 5 is attached to the bottom of the upper heat-sealing plate 8. The upper heat insulation plate 5 is parallel to the base 1 and can block the upper heat-sealing plate 8 to set the heat-sealing width. A third motor 231 is fixedly connected to the outer surface of the left end of the support frame 22. The tail end of the transmission shaft of the third motor 231 is fixedly connected to the left end of the second threaded rod 23.

[0031] During actual use, the plastic of the slider bag passes under the second support frame 3 and the first support frame 2 in sequence through the conveying roller 4. Through the second electric push rod 11, the adjustment slot 12, the bidirectional lead screw 13 and the exhaust rod 15, the plastic can be exhaust-treated. After the second electric push rod 11 is started, it drives the adjustment slot 12 to descend until the exhaust rod 15 fits with the plastic and the base 1. Then, after the first motor 131 is started, it drives the bidirectional lead screw 13 to rotate, so that the threaded block 14 drives the exhaust rod 15 to move from the center of the base 1 to both sides. During the movement, the air in the plastic will be discharged, thus ensuring the flatness of the plastic and the quality and stability of heat sealing. After the exhaust is completed, the plastic reaches under the first support frame 2. At this time, the first electric push rod 7 is started to extend downward, so that the upper heat-sealing plate 8 moves downward to press the plastic in the center in cooperation with the lower heat-sealing plate 9. The upper heat-sealing plate 8 and the lower heat-sealing plate 9 are heated by the square heating wire 10, so as to perform heat-sealing treatment on the plastic. The power supply 6 supplies power to the square heating wire 10. At the same time, through the upper heat-blocking plate 5 and the lower heat-blocking plate 501, the width of the heat-sealing area can be set. After the third motor 231 is started, it drives the second threaded rod 23 to rotate, so that the second moving block 24 and the upper heat-blocking plate 5 move left and right. At the same time, the second motor 21 is started to drive the first threaded rod 17 to rotate, so that the first moving block 18 and the lower heat-blocking plate 501 move left and right. The upper heat-blocking plate 5 and the lower heat-blocking plate 501 can respectively block the upper heat-sealing plate 8 and the lower heat-sealing plate 9, so as to change the width during heat sealing, adapt to different heat-sealing processing requirements, and improve the heat-sealing efficiency and practicability of the device.

Claims

1. A heat sealing device for producing slider bags, comprising a base (1), an adjustment groove (12), a lower heat shield (501) and a support frame (22), characterized in that: The front and rear surfaces of the base (1) are respectively fixedly connected with a No. 1 support frame (2) and a No. 2 support frame (3) from left to right, the bottom of the No. 1 support frame (2) is fixedly connected with a No. 1 electric push rod (7), the bottom of the No. 1 electric push rod (7) is fixedly connected with an upper heat-sealing plate (8), the surface of the base (1) directly below the upper heat-sealing plate (8) is inlaid with a lower heat-sealing plate (9), the center of the left side wall of the upper heat-sealing plate (8) is fixedly connected with a support frame (22), the inner side of the support frame (22) is rotatably connected with a No. 2 threaded rod (23), the surface of the No. 2 threaded rod (23) is threadedly connected with a No. 2 moving block (24), the bottom of the No. 2 moving block (24) is fixedly connected with an upper heat shield (5), the surface of the base (1) on the left side of the lower heat-sealing plate (9) is placed with a lower heat shield (501), the surface of the lower heat shield (501) A protrusion (20) is fixedly connected to the front side edge, a side groove (16) is provided on the left side of the front surface of the base (1), a No. 1 threaded rod (17) is rotatably connected to the inner side of the side groove (16), a No. 1 moving block (18) is threadedly connected to the surface of the No. 1 threaded rod (17), a connecting block (19) is fixedly connected to the top of the No. 1 moving block (18), and the upper end of the connecting block (19) is fixedly connected to the protrusion (20), a No. 2 electric push rod (11) is fixedly connected to the bottom center of the No. 2 support frame (3), an adjusting groove (12) is fixedly connected to the bottom of the No. 2 electric push rod (11), a bidirectional screw rod (13) is rotatably connected to the inner side of the adjusting groove (12), both sides of the surface of the bidirectional screw rod (13) are threadedly connected to threaded blocks (14), and the bottom of the threaded block (14) is fixedly connected to an exhaust rod (15).

2. A heat sealing device for producing slider bags according to claim 1, characterized in that: The top of the upper heat shield plate (5) is in contact with the bottom of the upper heat sealing plate (8), the bottom of the lower heat shield plate (501) is in contact with the surface of the base (1), and the inner sides of the upper heat sealing plate (8) and the lower heat sealing plate (9) are fixedly connected with square heating wires (10).

3. A heat sealing device for producing slider bags according to claim 1, characterized in that: The left and right ends of the base (1) are both movably connected with conveying rollers (4).

4. A heat sealing device for producing slider bags according to claim 1, characterized in that: A first motor (131) is fixedly connected to the outer surface of one end of the adjustment slot (12), and a rear end of a transmission shaft of the first motor (131) is fixedly connected to one end of a bidirectional screw rod (13).

5. A heat sealing device for producing slider bags according to claim 1, characterized in that: A second motor (21) is fixedly connected to the left side wall of the base (1) toward which the left end of the first threaded rod (17) is directed, and a rear end of a transmission shaft of the second motor (21) is fixedly connected to the left end of the first threaded rod (17).

6. A heat sealing device for producing slider bags according to claim 1, characterized in that: A third motor (231) is fixedly connected to the outer surface of the left end of the support frame (22), and the rear end of the transmission shaft of the third motor (231) is fixedly connected to the left end of the second threaded rod (23).

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