Handbag low-temperature heat sealing equipment

Abstract

The utility model provides handbag low temperature heat equipment relates to handbag processing technical field, the utility model discloses fixed mounting in the surface of each two L type rods of hollow box both sides, four L type rod vertical end's outer wall surface all slidingly connected with slide, every left slide and every right slide all are fixedly installed with the compression plate, the surface fixed mounting of compression plate has pull rod, the utility model discloses through double limiting device, make and utilize mechanical compression and the double effect of negative pressure adsorption, exert fixed force from different directions to handbag, and the compression plate is fixed with the spring elasticity handbag edge, prevents the transverse sliding, and the negative pressure passes through the through -hole and adsorbs handbag center area, avoids longitudinal warping, and the synergies can effectively offset the force of the heat sealing head when pressing, and the risk of handbag displacement is reduced greatly, ensures that the heat sealing position is accurate, improves the seam flatness and firmness.

Description

Technical Field

[0001] This utility model relates to the field of tote bag processing technology, and in particular to a low-temperature heat sealing device for tote bags. Background Technology

[0002] Low-temperature heat sealing equipment for tote bags is an automated or semi-automatic device specifically designed for the production and processing of tote bags. It achieves material bonding through low-temperature heating. It is mainly used for materials that need to be protected from high-temperature damage (such as some plastics, composite films, non-woven fabrics, etc.). It uses the principle of hot pressing at a lower temperature to melt and bond the contact surfaces of the materials, forming a strong seam. It is widely used in the manufacturing of tote bags in the packaging, gift, and clothing industries.

[0003] Existing low-temperature heat sealing equipment for tote bags relies solely on a single mechanical clamping method to limit and fix the tote bags. This method is difficult to cope with the complex stress conditions during the heat sealing process. When the heat sealing head applies pressure, the tote bag is prone to lateral sliding under pressure, causing the heat sealing position to deviate from the preset trajectory. This not only affects the flatness and firmness of the seam, but also results in a large number of defective products. In addition, the single mechanical limit has poor adaptability to tote bags of different materials and thicknesses. Too loose a fit can easily lead to displacement, while too tight a fit may damage the material surface, further exacerbating the instability of the heat sealing quality and seriously restricting the improvement of production efficiency and finished product qualification rate. Utility Model Content

[0004] The purpose of this utility model is to solve the problems mentioned above in the background art by proposing a low-temperature heat sealing device for tote bags.

[0005] To achieve the above objectives, the present invention adopts the following technical solution: a low-temperature heat sealing device for handbags, comprising a hollow box, two legs fixedly installed on each of the two sides of the hollow box, and a double limiting device provided on each of the two sides of the hollow box, the double limiting device comprising two L-shaped rods fixedly installed on each of the two sides of the hollow box, a sliding plate slidably connected to the outer wall surface of the vertical ends of the four L-shaped rods, a pressing plate fixedly installed between each left sliding plate and each right sliding plate, and a pull rod fixedly installed on the surface of the pressing plate.

[0006] Preferably, a circular plate is fixedly installed on the surface of each L-shaped rod away from the hollow box, and a spring is fixedly installed between each circular plate and each sliding plate.

[0007] Preferably, a connecting pipe and two L-shaped support rods are fixedly installed on the bottom surface of the hollow box, and a negative pressure cylinder is fixedly installed on the end surface of the two L-shaped support rods away from the hollow box.

[0008] Preferably, an air extraction pipe is fixedly installed at one end of the negative pressure cylinder, and the end of the air extraction pipe away from the negative pressure cylinder is connected to a connecting pipe. Multiple through holes are circumferentially opened on the surface of the hollow box.

[0009] Preferably, a piston plate is slidably connected inside the negative pressure cylinder, and a round rod is fixedly installed on the surface of the piston plate. The end of the round rod away from the piston plate passes through the negative pressure cylinder and is fixedly installed with a horizontal plate.

[0010] Preferably, a support plate is fixedly installed on both outer wall surfaces of the negative pressure cylinder, and a first electric telescopic rod is fixedly installed on the surface of the support plate, with the output end of the first electric telescopic rod fixedly connected to the cross plate.

[0011] The aforementioned components achieve the following effects: by utilizing the dual action of mechanical pressing and negative pressure adsorption, a fixing force is applied to the tote bag from different directions. The pressing plate uses spring force to fix the edges of the tote bag and prevent lateral slippage; the negative pressure adsorbs the central area of ​​the tote bag through the through holes to avoid longitudinal warping. The two work together to effectively counteract the force generated when the heat sealing head applies pressure, greatly reducing the risk of tote bag displacement, ensuring accurate heat sealing position, and improving the flatness and firmness of the seam.

[0012] Preferably, a U-shaped frame and a PLC controller are fixedly installed on one side surface of the hollow box, a second electric telescopic rod is fixedly installed on the bottom surface of the top horizontal end of the U-shaped frame, a heat sealing head is fixedly installed on the output end of the second electric telescopic rod, a thickness sensor and a material identification sensor are fixedly installed on both sides of the heat sealing head, two LED warning lights are fixedly installed on one side surface of the heat sealing head, and two infrared human body sensors are fixedly installed on the top surface of the heat sealing head.

[0013] Preferably, the PLC controller is electrically connected to the first electric telescopic rod, the second electric telescopic rod, the heat sealing head, the thickness sensor, the material identification sensor, the LED warning light, and the infrared human body sensor.

[0014] Compared with the prior art, the advantages and positive effects of this utility model are as follows:

[0015] In this invention, by setting up a double limiting device, the mechanical pressing and negative pressure adsorption are used to apply a fixing force to the tote bag from different directions. The pressing plate fixes the edge of the tote bag with the help of spring force to prevent lateral sliding; the negative pressure adsorbs the central area of ​​the tote bag through the through hole to avoid longitudinal warping. The two work together to effectively counteract the force generated when the heat sealing head applies pressure, greatly reducing the risk of tote bag displacement, ensuring accurate heat sealing position, and improving the flatness and firmness of the seam. Attached Figure Description

[0016] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0017] Figure 2 This utility model Figure 1 Another structural diagram from a different angle;

[0018] Figure 3 This is a partial structural schematic diagram of the dual limiting device of this utility model;

[0019] Figure 4 This is a schematic diagram of the internal structure of the negative pressure cylinder of this utility model;

[0020] Figure 5 This is an exploded structural diagram of the present invention;

[0021] Figure 6 This is a schematic diagram of the control process of this utility model.

[0022] Legend: 1. Hollow box; 2. Double limit device; 201. L-shaped rod; 202. Slide plate; 203. Pressure plate; 204. Pull rod; 205. Round plate; 206. Spring; 207. Connecting pipe; 208. L-shaped support rod; 209. Negative pressure cylinder; 210. Air extraction pipe; 211. Piston plate; 212. Round rod; 213. Horizontal plate; 214. Support plate; 215. First electric telescopic rod; 216. Through hole; 3. Support leg; 4. PLC controller; 5. U-shaped frame; 6. Second electric telescopic rod; 7. Heat sealing head; 8. Thickness sensor; 9. LED warning light; 10. Infrared human body sensor; 11. Material identification sensor. Detailed Implementation

[0023] Example 1, as Figure 1-6As shown, the low-temperature heat sealing equipment for tote bags includes a hollow box 1. Two support legs 3 are fixedly installed on both sides of the hollow box 1. A U-shaped frame 5 and a PLC controller 4 are fixedly installed on one side of the hollow box 1. A second electric telescopic rod 6 is fixedly installed on the bottom surface of the top horizontal end of the U-shaped frame 5. A heat sealing head 7 is fixedly installed at the output end of the second electric telescopic rod 6. A thickness sensor 8 and a material identification sensor 11 are fixedly installed on both sides of the heat sealing head 7, respectively. Two LED warning lights 9 are fixedly installed on one side of the heat sealing head 7, and two infrared human body sensors 10 are fixedly installed on the top surface of the heat sealing head 7. The PLC controller 4 is electrically connected to the first electric telescopic rod 215, the second electric telescopic rod 6, the heat sealing head 7, the thickness sensor 8, the material identification sensor 11, the LED warning lights 9, and the infrared human body sensors 10. The PLC controller 4 is model S7-1200, with a signal processing cycle of ≤50ms. The second electric telescopic rod 6 has a stroke of 200mm, a thrust of 300N, and a positioning accuracy of ±0.1mm. The heat-sealing head 7 has a length of 200mm and a width of 30mm. The heat-sealing surface is coated with PTFE for anti-sticking. It also has a built-in resistance heating element with a heating power of 500W. The heat-sealing temperature can be adjusted within the range of 60-120℃. The heat-sealing pressure is 0.2-0.4MPa, and the heat-sealing time is adjustable from 1-3s. The thickness sensor 8 is laser-type, with a measurement range of 0.1-5mm and an accuracy of ±0.02mm. The material identification sensor 11 is infrared spectral type. The LED warning light 9 is red light with a brightness of 500cd / m². The infrared human body sensor 10 has a detection distance of 0-30cm, a response time of ≤0.05s, and a detection angle of 120°.

[0024] Reference Figure 1-4As shown in this embodiment: Double limiting devices 2 are provided on both sides of the hollow box 1. Each double limiting device 2 includes two L-shaped rods 201 fixedly installed on each side of the hollow box 1. Slide plates 202 are slidably connected to the outer wall surfaces of the vertical ends of the four L-shaped rods 201. A pressure plate 203 is fixedly installed between each left slide plate 202 and each right slide plate 202. A pull rod 204 is fixedly installed on the surface of the pressure plate 203. A circular... Plate 205, spring 206 is fixedly installed between each circular plate 205 and each sliding plate 202, connecting pipe 207 and two L-shaped support rods 208 are fixedly installed on the bottom surface of the hollow box 1, negative pressure cylinder 209 is fixedly installed on the surface of the two L-shaped support rods 208 away from the hollow box 1, and suction pipe 210 is fixedly installed on one end of the negative pressure cylinder 209. The end of suction pipe 210 away from the negative pressure cylinder 209 is connected to connecting pipe 207, and multiple through holes 216 are circumferentially opened on the surface of the hollow box 1, negative pressure A piston plate 211 is slidably connected inside the cylinder 209. A round rod 212 is fixedly installed on the surface of the piston plate 211. The end of the round rod 212 away from the piston plate 211 passes through the negative pressure cylinder 209 and is fixedly installed with a horizontal plate 213. Support plates 214 are fixedly installed on the outer walls of both sides of the negative pressure cylinder 209. A first electric telescopic rod 215 is fixedly installed on the surface of the support plate 214. The output end of the first electric telescopic rod 215 is fixedly connected to the horizontal plate 213. The clearance between the sliding plate 202 and the L-shaped rod 201 is 0.2m. m, a silicone pad is pasted on the bottom of the clamping plate 203, the spring 206 is made of 65Mn steel with an elastic coefficient of 3N / mm, a free length of 100mm, and generates 5-8N pressure when the compression amount is 30-50mm, the negative pressure cylinder 209 has a volume of 2L, is made of 304 stainless steel, has a pressure resistance of -0.1MPa, and the through hole 216 is connected to the internal cavity of the hollow box 1, the piston plate 211 is equipped with a nitrile rubber sealing ring on the edge, the first electric telescopic rod 215 has a stroke of 150mm, a thrust of 200N, and a telescopic speed of 30mm / s.

[0025] Working principle: When the device is needed, first pull the lever 204. The movement of the lever 204 moves the pressure plate 203 upward, which in turn moves the slide plate 202 upward on the surface of the L-shaped rod 201. During the sliding process, the slide plate 202 compresses the spring 206. When the pressure plate 203 moves to the appropriate height, place the handbag on the surface of the hollow box 1. After placement, release the lever 204. The rebound force of the spring 206 pushes the slide plate 202 and the pressure plate 203 back to their original positions. After the pressure plate 203 returns to its original position, it presses and fixes the edges of the handbag. On the surface of the hollow box 1, the two first electric telescopic rods 215 are then activated by the PLC controller 4. The output end of the first electric telescopic rod 215 drives the horizontal plate 213 to move. The movement of the horizontal plate 213 causes the round rod 212 and the piston plate 211 to slide away from the suction pipe 210 inside the negative pressure cylinder 209, creating a negative pressure inside the negative pressure cylinder 209. The negative pressure is transmitted to the internal cavity of the hollow box 1 through the suction pipe 210 and the connecting pipe 207, and then generates an adsorption force on the central area of ​​the handbag through the through hole 216. This force, combined with the pressing force of the pressing plate 203, forms a double limit, further improving the handbag's position. To ensure stability during heat sealing, once the tote bag is securely positioned, the thickness sensors 8 on both sides of the heat sealing head 7 detect the thickness of the heat-sealed portion of the tote bag. Simultaneously, the material identification sensor 11 identifies the material of the tote bag and transmits the detection signal to the PLC controller 4. The PLC controller 4 automatically adjusts parameters such as temperature, pressure, and heat sealing time of the heat sealing head 7 based on the received signal. Subsequently, it controls the second electric telescopic rod 6 to activate, causing the heat sealing head 7 to move downwards. During the descent of the heat sealing head 7, the LED warning light 9 on one side of the heat sealing head 7 illuminates red as a warning. If the red light on the top of the heat sealing head 7... When the external human body sensor 10 detects that the operator's hand has entered the heat-sealing area, it immediately sends a signal to the PLC controller 4. The PLC controller 4 will control the equipment to stop running and automatically raise the heat-sealing head 7 to prevent safety accidents. When the heat-sealing head 7 descends to contact the heat-sealing part of the tote bag, the heat-sealing operation is completed according to the preset parameters. After the heat-sealing is completed, the second electric telescopic rod 6 drives the heat-sealing head 7 to reset upwards, the LED warning light 9 goes out, the first electric telescopic rod 215 retracts and drives the piston plate 211 to reset, the negative pressure is released, and finally the pull rod 204 is pulled to remove the heat-sealed tote bag, completing one operation.

[0026] The above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model in any other way. Any person skilled in the art may use the disclosed technical content to make changes or modifications to create equivalent embodiments for application in other fields. However, any simple modifications, equivalent changes, and modifications made to the above embodiments based on the technical essence of this utility model, without departing from the scope of the utility model's technical solution, still fall within the protection scope of this utility model's technical solution. In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. For those skilled in the art, the specific meaning of the above terms in this utility model can be understood through specific circumstances.

Claims

1. A low-temperature heat-sealing device for tote bags, comprising a hollow box (1), wherein two support legs (3) are fixedly installed on both sides of the hollow box (1), characterized in that: The hollow box (1) is provided with double limiting devices (2) on both sides. The double limiting devices (2) include two L-shaped rods (201) fixedly installed on each side surface of the hollow box (1). The outer wall surface of the vertical ends of the four L-shaped rods (201) is slidably connected with a sliding plate (202). A pressure plate (203) is fixedly installed between each left sliding plate (202) and each right sliding plate (202). A pull rod (204) is fixedly installed on the surface of the pressure plate (203).

2. The low-temperature heat sealing equipment for tote bags according to claim 1, characterized in that: A circular plate (205) is fixedly installed on the surface of each L-shaped rod (201) away from the hollow box (1), and a spring (206) is fixedly installed between each circular plate (205) and each sliding plate (202).

3. The low-temperature heat sealing equipment for tote bags according to claim 1, characterized in that: A connecting pipe (207) and two L-shaped support rods (208) are fixedly installed on the bottom surface of the hollow box (1). A negative pressure cylinder (209) is fixedly installed on the end surface of the two L-shaped support rods (208) away from the hollow box (1).

4. The low-temperature heat sealing equipment for tote bags according to claim 3, characterized in that: One end of the negative pressure cylinder (209) is fixedly installed with an air extraction pipe (210). The end of the air extraction pipe (210) away from the negative pressure cylinder (209) is connected to the connecting pipe (207). The surface of the hollow box (1) is provided with a plurality of through holes (216).

5. The low-temperature heat sealing equipment for tote bags according to claim 3, characterized in that: The negative pressure cylinder (209) is slidably connected to a piston plate (211), and a round rod (212) is fixedly installed on the surface of the piston plate (211). The end of the round rod (212) away from the piston plate (211) passes through the negative pressure cylinder (209) and is fixedly installed with a horizontal plate (213).

6. The low-temperature heat sealing equipment for tote bags according to claim 3, characterized in that: Support plates (214) are fixedly installed on both outer walls of the negative pressure cylinder (209). A first electric telescopic rod (215) is fixedly installed on the surface of the support plate (214). The output end of the first electric telescopic rod (215) is fixedly connected to the horizontal plate (213).

7. The low-temperature heat sealing equipment for tote bags according to claim 1, characterized in that: A U-shaped frame (5) and a PLC controller (4) are fixedly installed on one side surface of the hollow box (1). A second electric telescopic rod (6) is fixedly installed on the bottom surface of the top horizontal end of the U-shaped frame (5). A heat sealing head (7) is fixedly installed at the output end of the second electric telescopic rod (6). A thickness sensor (8) and a material identification sensor (11) are fixedly installed on both sides of the heat sealing head (7). Two LED warning lights (9) are fixedly installed on one side surface of the heat sealing head (7). Two infrared human body sensors (10) are fixedly installed on the top surface of the heat sealing head (7).

8. The low-temperature heat sealing equipment for tote bags according to claim 7, characterized in that: The PLC controller (4) is electrically connected to the first electric telescopic rod (215), the second electric telescopic rod (6), the heat sealing head (7), the thickness sensor (8), the material identification sensor (11), the LED warning light (9), and the infrared human body sensor (10).

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