A heat seal treatment device

Abstract

This utility model discloses a heat-sealing device, including a workbench. A mounting frame is fixedly installed on the top rear side of the workbench surface. An electric push rod is fixedly installed on the top of the mounting frame. The telescopic end of the electric push rod extends downward through the top of the mounting frame and is connected to an upper mold for heat-sealing non-woven fabric via a connector. A lower mold is set on the top of the workbench surface, corresponding to the upper mold. The lower mold is installed on the top of the workbench surface via a detachable component. The detachable component allows the lower mold to slide easily along the guide rail for installation and removal. An elastic pusher allows the locking strip to automatically insert into the slot and securely fix the lower mold, while a pusher allows the locking strip to easily disengage from the slot, avoiding the problem of inconvenient lower mold replacement. This facilitates quick replacement of different lower molds to adapt to diverse production needs and effectively expands the applicability of the equipment.

Description

Technical Field

[0001] This utility model relates to the technical field of heat sealing treatment devices for non-woven fabrics, specifically a heat sealing treatment device. Background Technology

[0002] Addressing the characteristics of non-woven fabric fibers being prone to shedding and fraying at the edges, the equipment uses heat melting to fuse the edge fibers, forming a continuous, sealed edge. This prevents fraying and fraying caused by friction and pulling. For example, the heat-sealing connection between the mask body and the ear loops can increase the tear resistance of the edges by more than 50%, ensuring that it will not break during use.

[0003] Currently, Chinese patent CN215473440U discloses a longitudinal heat-sealing device, including a base frame. A horizontal feeding platform is located at the vertical end of the base frame. A cylinder is located at the vertical end of the base frame above the feeding platform, and the output end of the cylinder is connected to a heat-sealing upper mold. A heat-sealing lower mold, adapted to the heat-sealing upper mold, is located at the vertical end of the base frame, and a heating wire is installed inside the heat-sealing lower mold. A circulating cooling assembly is installed on the base frame, and the circulating cooling assembly circulates and cools the heat-sealed product through a cooling medium. In this utility model, the heat-sealing device uses longitudinally arranged upper and lower heat-sealing molds, which can automate the splicing, bonding, and longitudinal heat-sealing processes of non-woven fabrics for bag making, as well as PE bags. This improves production efficiency, reduces labor intensity, effectively improves product processing quality, and avoids the occurrence of defective products.

[0004] The aforementioned longitudinal heat sealing device has some problems in actual use. Although it improves production efficiency, reduces labor intensity, and effectively improves product processing quality, the replacement of the upper and lower molds is inconvenient, making it suitable for a single or very few product specifications and unable to meet diverse production needs, which greatly limits the applicability of the equipment. Summary of the Invention

[0005] The purpose of this invention is to provide a heat sealing device to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution: A heat-sealing device includes a workbench, a mounting frame fixedly installed on the top rear side of the workbench, an electric push rod fixedly installed on the top of the mounting frame, the telescopic end of the electric push rod extending downward through the top of the mounting frame and connected to an upper mold for heat-sealing non-woven fabric via a connector, and a lower mold disposed on the top of the workbench and at a position corresponding to the upper mold, the lower mold being mounted on the top of the workbench via a detachable component; The detachable component includes a guide rail fixedly installed on the top of the workbench surface. The bottom of the lower mold has a guide groove adapted to the guide rail. Both sides of the bottom of the lower mold have rectangular grooves. The inner cavities of the two sets of rectangular grooves are slidably connected with locking strips. The top of the workbench surface and both sides of the guide rail have locking slots adapted to the locking strips. When the guide groove at the bottom of the lower mold is slidably connected to the surface of the guide rail, the two sets of locking strips are inserted into the inner cavity of the corresponding side locking slots under the push of the elastic pusher. Both sides of the lower mold are provided with pushers that push the locking strips upward to disengage them from the inner cavity of the locking slots.

[0007] As a preferred technical solution, the elastic pusher includes guide rods that are fixedly installed on the top inner walls of the two ends of the two sets of rectangular grooves. The two sets of guide rods on the same side pass downward through the corresponding side clips. A spring is sleeved on the surface of each set of guide rods. The two ends of each set of springs contact the top of the corresponding side clip and the top inner wall of the corresponding side rectangular groove.

[0008] As a preferred technical solution, the actuating component includes limiting holes respectively opened on both sides of the lower mold and arranged along the height. The inner cavities of the two sets of limiting holes are slidably connected with connecting pieces. The opposite ends of the two sets of connecting pieces are respectively fixedly connected to the surface of the corresponding side clips. The opposite ends of the two sets of connecting pieces are respectively fixedly connected with paddles. The opposite ends of the two sets of paddles are respectively slidably connected to the corresponding side surface of the lower mold.

[0009] As a preferred technical solution, the cross-section of the guide rail is T-shaped.

[0010] As a preferred technical solution, the connector is fixedly connected to the fixed tube at the top of the upper mold. A bolt is provided on one side of the fixed tube. The telescopic end of the electric push rod is inserted into the inner cavity of the fixed tube and has an installation hole for bolt insertion. One end of the bolt passes through the fixed tube and the installation hole in sequence and extends to the other side of the fixed tube. A nut is threaded onto one end of the bolt. The nut is tightened and abuts against the other side surface of the fixed tube.

[0011] As a preferred technical solution, the top of both sides of the upper mold is fixedly connected with internally threaded tubes, the inner cavities of the two sets of internally threaded tubes are respectively threaded with screws, the tops of the two sets of screws are respectively fixedly connected with limit rods, and the tops of the two sets of limit rods slide upward through the top inner wall of the mounting frame.

[0012] As a preferred technical solution, a support plate is fixedly installed on the rear side of the workbench surface, an operation screen is installed on the surface of the support plate, an electric heating rod is provided on the surface of the lower mold, a controller is installed on the surface of the support plate, the output end of the operation screen is electrically connected to the signal input end of the controller through a wire, the input end of the electric heating rod is electrically connected to the output end of the controller through a wire, and the electric push rod is controlled by the controller.

[0013] Compared with the prior art, the beneficial effects of this utility model are: 1. This utility model, through the setting of detachable parts, allows the lower mold to slide easily along the guide rail to achieve installation and disassembly. The elastic pushing part can make the card strip automatically insert into the card slot to securely fix the lower mold, and the pushing part can easily make the card strip disengage from the card slot, avoiding the problem of inconvenient replacement of the lower mold, facilitating the quick replacement of different lower molds to adapt to diversified production needs, and effectively expanding the application range of the equipment. 2. This utility model uses a toggle mechanism to connect the toggle piece with the locking strip. The operator only needs to toggle the toggle piece to move the locking strip, making the disassembly of the lower mold simple and labor-saving. In addition, the limiting hole restricts the sliding direction of the connecting piece, preventing the connecting piece from shifting and causing the locking strip to move poorly, ensuring a stable and smooth disassembly process, and effectively improving the efficiency of lower mold replacement. 3. This utility model achieves a stable connection between the upper mold and the telescopic end of the electric push rod through the setting of connecting parts and the cooperation of fixing pipe, bolt and nut. The connection strength is high and can withstand the impact force during the heat sealing process. Moreover, when disassembling, you only need to loosen the nut and remove the bolt to quickly separate the upper mold and the electric push rod. The operation is simple, which greatly shortens the upper mold replacement time and improves the equipment's response speed to diversified production needs. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the structure of a heat sealing device according to the present invention; Figure 2 This is a schematic diagram of the opening position structure of the card slot in this utility model; Figure 3 This is a cross-sectional structural diagram of the lower mold of this utility model; Figure 4 This is a schematic diagram of the mounting bracket of this utility model.

[0015] In the picture: 100. Workbench; 101. Support plate; 102. Controller; 103. Operation panel; 104. Card slot; 200. Mounting bracket; 201. Electric push rod; 202. Upper mold; 203. Limiting rod; 204. Screw; 205. Internally threaded tube; 206. Mounting hole; 207. Bolt; 208. Fixing tube; 209. Nut; 300. Lower mold; 301. Guide rail; 302. Limiting hole; 303. Guide groove; 304. Electric heating rod; 305. Connecting piece; 306. Paddle; 307. Locking strip; 308. Spring; 309. Guide rod; 310. Rectangular groove. Detailed Implementation

[0016] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0017] Please see Figure 1-4 This embodiment provides a heat sealing device, including a workbench 100. A mounting frame 200 is fixedly installed on the top rear side of the workbench 100. An electric push rod 201 is fixedly installed on the top of the mounting frame 200. The telescopic end of the electric push rod 201 extends downward through the top of the mounting frame 200 and is connected to an upper mold 202 for heat sealing non-woven fabric through a connector. A lower mold 300 is provided on the top of the workbench 100 and at a position corresponding to the upper mold 202. The lower mold 300 is installed on the top of the workbench 100 through a detachable component. The detachable components include a guide rail 301 fixedly mounted on the top of the workbench 100, a guide groove 303 adapted to the guide rail 301 on the bottom of the lower mold 300, rectangular grooves 310 on both sides of the bottom of the lower mold 300, and locking strips 307 slidably connected to the inner cavities of the two sets of rectangular grooves 310. Locking slots 104 adapted to the locking strips 307 are also provided on the top of the workbench 100 and on both sides of the guide rail 301. When the guide groove 303 at the bottom of the lower mold 300 is slidably connected to the surface of the guide rail 301, the two sets of locking strips 307 are pushed by the elastic pusher. Insert the lower die 300 into the inner cavity of the corresponding side slot 104. Both sides of the lower die 300 are provided with actuating components that push the clip 307 upward to disengage it from the inner cavity of the slot 104. The detachable components allow the lower die 300 to slide easily along the guide rail 301 for installation and disassembly. The elastic pushing component allows the clip 307 to automatically insert into the slot 104 and securely fix the lower die 300. The actuating components can also easily disengage the clip 307 from the slot 104, avoiding the problem of inconvenient replacement of the lower die 300. This facilitates the quick replacement of different lower dies 300 to adapt to diverse production needs and effectively expands the applicability of the equipment.

[0018] The upper mold 202 and the lower mold 300 are well-known technical means to those skilled in the art. For their specific structure and working principle, please refer to the heat-sealing upper mold 202 and heat-sealing lower mold 300 in a longitudinal heat-sealing device with publication number CN215473440U. Other details will not be elaborated here.

[0019] The elastic pusher includes guide rods 309 fixedly installed on the inner walls of the top of the two ends of the two sets of rectangular grooves 310. The two sets of guide rods 309 on the same side pass downward through the corresponding side retaining strips 307. Each set of guide rods 309 is fitted with a spring 308. The two ends of each set of springs 308 contact the top of the corresponding side retaining strip 307 and the inner wall of the top of the corresponding side rectangular groove 310, respectively. Through the setting of the elastic pusher, the guide rods 309 play a precise guiding role in the up and down sliding of the retaining strips 307, preventing the retaining strips 307 from deviating during movement. In addition, the springs 308 can provide a continuous and stable elastic force to ensure that the retaining strips 307 are reliably inserted into the retaining slots 104, thereby enhancing the stability of the lower mold 300 installation.

[0020] The actuating component includes limiting holes 302 respectively formed on both sides of the lower mold 300 and arranged along its height. Connecting pieces 305 are slidably connected to the inner cavities of both sets of limiting holes 302. The opposite ends of the two sets of connecting pieces 305 are fixedly connected to the surfaces of corresponding side retaining strips 307. Paddles 306 are fixedly connected to the opposite ends of the two sets of connecting pieces 305. The opposite ends of the two sets of paddles 306 are slidably connected to the corresponding side surfaces of the lower mold 300. Through the actuating component, the connecting pieces 305 associate the paddles 306 with the retaining strips 307. The operator only needs to paddle the paddles 306 to move the retaining strips 307, making the disassembly of the lower mold 300 simple and effortless. Furthermore, the limiting holes 302 restrict the sliding direction of the connecting pieces 305, preventing the connecting pieces 305 from shifting and causing the retaining strips 307 to move uncomfortably, ensuring a stable and smooth disassembly process and effectively improving the efficiency of lower mold 300 replacement.

[0021] The guide rail 301 has a T-shaped cross-section. The T-shaped cross-section of the guide rail 301 cooperates with the guide groove 303 at the bottom of the lower mold 300, which can limit the lower mold 300 from the horizontal and vertical directions. This prevents the lower mold 300 from shifting laterally or detaching from the guide rail 301 due to force during the heat sealing process, significantly improving the overall stability of the lower mold 300 installation and ensuring the accuracy of the heat sealing process.

[0022] The connector is fixedly connected to the fixed tube 208 at the top of the upper mold 202. A bolt 207 is provided on one side of the fixed tube 208. The telescopic end of the electric push rod 201 is inserted into the inner cavity of the fixed tube 208 and has a mounting hole 206 for the bolt 207 to be inserted. One end of the bolt 207 passes through the fixed tube 208 and the mounting hole 206 and extends to the other side of the fixed tube 208. A nut 209 is threaded onto one end of the bolt 207. Tightening the nut 209 will cause it to abut against the fixed tube. On the other side of 208, through the setting of the connector, the fixing tube 208, bolt 207 and nut 209 are matched to achieve a stable connection between the upper mold 202 and the telescopic end of the electric push rod 201. The connection strength is high and can withstand the impact force during the heat sealing process. Moreover, when disassembling, simply loosen the nut 209 and remove the bolt 207 to quickly separate the upper mold 202 and the electric push rod 201. The operation is simple, which greatly shortens the replacement time of the upper mold 202 and improves the response speed of the equipment to diversified production needs.

[0023] The upper mold 202 has internally threaded tubes 205 fixedly connected to the top of both sides. The inner cavities of the two sets of internally threaded tubes 205 are threadedly connected to screws 204. The tops of the two sets of screws 204 are fixedly connected to limit rods 203. The tops of the two sets of limit rods 203 slide upward through the top inner wall of the mounting frame 200. Through the setting of the limit rods 203, the limit rods 203 slide upward through the mounting frame 200 and slide up and down with the upper mold 202, providing precise guidance for the movement of the upper mold 202 and effectively preventing the upper mold 202 from shifting or shaking during the heat sealing process.

[0024] The workbench 100 has a support plate 101 fixedly installed on the rear side of the table surface. An operation screen 103 is installed on the surface of the support plate 101. An electric heating rod 304 is installed on the surface of the lower mold 300. A controller 102 is installed on the surface of the support plate 101. The output end of the operation screen 103 is electrically connected to the signal input end of the controller 102 through a wire. The input end of the electric heating rod 304 is electrically connected to the output end of the controller 102 through a wire. The electric push rod 201 is controlled by the controller 102. Through the settings of the controller 102, the operation screen 103 and the controller 102 cooperate to realize the automated control of the electric heating rod 304. The operator can intuitively set and adjust the temperature of the lower mold 300, making the temperature control of the lower mold 300 more precise and stable, ensuring the heat sealing quality of the nonwoven fabric, reducing the labor intensity of the operator, and improving production efficiency and the consistency of the heat sealing process.

[0025] The controller 102 can be selected from models such as ROPEX RES-406 / 400VAC and ROPEX RES-407 / 400VAC, which are widely used in the field of heat sealing control and have reliable performance.

[0026] Working principle; First, align the guide groove 303 at the bottom of the lower mold 300 with the guide rail 301 on the worktable 100, slide the lower mold 300 along the guide rail 301, so that the lower mold 300 moves to the working position corresponding to the upper mold 202, and the retaining strip 307 in the rectangular groove 310 retracts into the rectangular groove 310. During this process, when the lower mold 300 is in place and the locking strip 307 is aligned with the slot 104, the locking strip 307 in the rectangular slots 310 on both sides of the lower mold 300 is automatically inserted into the corresponding slot 104 on the worktable 100 under the action of the elastic pusher, thereby fixing the lower mold 300 firmly on the worktable 100. The telescopic end of the electric push rod 201 is inserted into the fixed tube 208 at the top of the upper mold 202. After the bolt 207 passes through the fixed tube 208 and the mounting hole 206 of the telescopic end, the two are fixed by tightening the nut 209, thus realizing the connection between the upper mold 202 and the electric push rod 201. Meanwhile, the internal threaded tubes 205 on both sides of the upper mold 202 are threadedly engaged with the screw 204, and the limiting rod 203 at the top of the screw 204 passes through the top of the mounting frame 200. When the electric push rod 201 drives the upper mold 202 to move up and down, the limiting rod 203 slides along the mounting frame 200, which plays a guiding and limiting role, ensuring the stability of the movement of the upper mold 202. During operation, the operator inputs relevant control commands through the operation screen 103 on the support plate 101. The operation screen 103 transmits the signal to the controller 102, and the controller 102 controls the electric heating rod 304 on the surface of the lower mold 300 to work, so that the lower mold 300 reaches the required temperature. Subsequently, the electric push rod 201 is activated, and its telescopic end extends downward, driving the upper mold 202 to move downward synchronously, cooperating with the lower mold 300 fixed on the worktable 100 to complete the corresponding processing operation of heat sealing non-woven fabric. After processing is completed, the telescopic end of the electric push rod 201 retracts upward, causing the upper mold 202 to reset; When it is necessary to replace the lower die 300, by moving the levers 306 on both sides of the lower die 300, the connecting piece 305 slides upward along the limiting hole 302, thereby driving the retaining strip 307 to overcome the elastic force of the spring 308 and move upward, disengaging from the inner cavity of the retaining groove 104. At this time, the lower die 300 can be slid along the guide rail 301 to remove it from the worktable 100, so as to replace different lower dies 300 to adapt to different processing requirements. When replacing the upper mold 202, loosen the nut 209 and remove the bolt 207 to separate the upper mold 202 from the telescopic end of the electric push rod 201, and remove the limit rod 203 to complete the quick replacement.

[0027] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A heat seal treatment apparatus characterized by comprising: The system includes a workbench (100), on which a mounting frame (200) is fixedly installed at the top rear side of the workbench (100). An electric push rod (201) is fixedly installed at the top of the mounting frame (200). The telescopic end of the electric push rod (201) extends downward through the top of the mounting frame (200) and is connected to an upper mold (202) for heat-sealing nonwoven fabric via a connector. A lower mold (300) is provided at the top of the workbench (100) and at a position corresponding to the upper mold (202). The lower mold (300) is installed on the top of the workbench (100) via a detachable component. The detachable component includes a guide rail (301) fixedly installed on the top of the workbench (100) table surface. The bottom of the lower mold (300) is provided with a guide groove (303) adapted to the guide rail (301). Rectangular grooves (310) are provided on both sides of the bottom of the lower mold (300). The inner cavities of the two sets of rectangular grooves (310) are slidably connected with retaining strips (307). The top of the workbench (100) table surface and located on the guide rail ( Both sides of the lower mold (301) are provided with slots (104) that are compatible with the card strips (307). When the guide groove (303) at the bottom of the lower mold (300) is slidably connected to the surface of the guide rail (301), the two sets of card strips (307) are inserted into the inner cavity of the corresponding side slots (104) under the push of the elastic pusher. Both sides of the lower mold (300) are provided with pushers that push the card strips (307) upward to make them disengage from the inner cavity of the slots (104).

2. A heat seal treatment apparatus according to claim 1, wherein: The elastic pusher includes guide rods (309) that are fixedly installed on the inner walls of the top of the two ends of the two sets of rectangular grooves (310). The two sets of guide rods (309) on the same side pass downward through the corresponding side clips (307). A spring (308) is sleeved on the surface of each set of guide rods (309). The two ends of each set of springs (308) contact the top of the corresponding side clips (307) and the inner wall of the top of the corresponding side rectangular groove (310).

3. A heat seal treatment apparatus according to claim 1, wherein: The actuating component includes limiting holes (302) respectively opened on both sides of the lower mold (300) and set along the height. The inner cavities of the two sets of limiting holes (302) are slidably connected with connecting pieces (305). The opposite ends of the two sets of connecting pieces (305) are respectively fixedly connected to the surface of the corresponding side clips (307). The opposite ends of the two sets of connecting pieces (305) are respectively fixedly connected with paddles (306). The opposite ends of the two sets of paddles (306) are respectively slidably connected to the corresponding side surface of the lower mold (300).

4. A heat seal treatment apparatus according to claim 1, wherein: The cross-section of the guide rail (301) is T-shaped.

5. A heat seal treatment apparatus according to claim 1, wherein: The connector is fixedly connected to the fixed tube (208) at the top of the upper mold (202). A bolt (207) is provided on one side of the fixed tube (208). The telescopic end of the electric push rod (201) is inserted into the inner cavity of the fixed tube (208) and has an installation hole (206) for the bolt (207) to be inserted. One end of the bolt (207) passes through the fixed tube (208) and the installation hole (206) in sequence and extends to the other side of the fixed tube (208). One end of the bolt (207) is threaded with a nut (209). Tighten the nut (209) and it abuts against the other side surface of the fixed tube (208).

6. A heat seal treatment apparatus according to claim 5, wherein: The upper mold (202) has internal threaded tubes (205) fixedly connected to the top of both sides respectively. The inner cavities of the two sets of internal threaded tubes (205) are respectively threaded with screws (204). The tops of the two sets of screws (204) are respectively fixedly connected with limit rods (203). The tops of the two sets of limit rods (203) slide upward and penetrate the top inner wall of the mounting frame (200).

7. A heat seal treatment apparatus according to any one of claims 1 to 6, wherein: A support plate (101) is fixedly installed on the rear side of the workbench (100). An operation screen (103) is installed on the surface of the support plate (101). An electric heating rod (304) is provided on the surface of the lower mold (300). A controller (102) is installed on the surface of the support plate (101). The output end of the operation screen (103) is electrically connected to the signal input end of the controller (102) through a wire. The input end of the electric heating rod (304) is electrically connected to the output end of the controller (102) through a wire. The electric push rod (201) is controlled by the controller (102).

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