Heat sealing equipment and automobile glass adhesive tape production line

Abstract

The invention belongs to the technical field of automobile production, and particularly relates to heat sealing equipment and an automobile glass adhesive tape production line. The heat sealing equipment comprises a first driving structure, two mold closing structures used for clamping a target piece and a heater used for transferring heat to the target piece, the two mold closing structures directly face each other and are arranged in a relative sliding mode, and the heater is arranged between the two mold closing structures in a reciprocating sliding mode so as to be close to the target piece. The mold closing structure comprises a second driving structure, a lower mold block used for containing the target piece and an upper mold block arranged in a sliding mode relative to the lower mold block, and the second driving structure is used for driving the upper mold block to move towards the lower mold block so that the upper mold block and the lower mold block can be subjected to mold closing and jointly clamp the target piece; the first driving structure is used for driving the two mold closing structures to move oppositely after the upper mold block and the lower mold block are closed, so that a target piece clamped by one mold closing structure is connected with a target piece clamped by the other mold closing structure. The hot connection efficiency of the target piece can be improved.

Description

Technical Field

[0001] The invention belongs to the technical field of automobile production, and in particular relates to heat sealing equipment and an automobile glass adhesive strip production line. Background Art

[0002] Automobile glass sealing strips are one of the essential accessories for the installation and use of automobile glass. After being pasted to the automobile glass, they can play a role in sealing and waterproofing. Due to the adaptation to the shape of automobile glass, some of the sealing strips used on automobile glass have corner structures. Such sealing strips generally require the use of special fixtures for positioning and heating, and the two sealing strips are heat-fused into a solid strip before they can be assembled and used. However, the traditional sealant hot-joining method has major drawbacks. The traditional sealant hot-joining method usually places the roughly cut strips into two sets of special positioning fixtures respectively, and manually closes the two strips for hot-joining, which is inefficient and greatly affects production efficiency. Summary of the invention

[0003] The purpose of the embodiments of the present application is to provide a heat-sealing device and an automotive glass adhesive strip production line, aiming to solve the problem of how to improve the heat-sealing efficiency of the target parts.

[0004] To achieve the above purpose, the technical solution adopted in this application is:

[0005] In a first aspect, a heat-sealing device is provided for joining two target parts in a heated state, the heat-sealing device comprising a first driving structure, a clamping structure for clamping the target parts, and a heater for transferring heat to the target parts, the clamping structures are provided with two, the two clamping structures are opposite to each other and are arranged to slide relative to each other, the heater is arranged to slide back and forth between the two clamping structures to approach the target parts, the clamping structure comprises a second driving structure, a lower module for placing the target parts, and an upper module slidably arranged relative to the lower module, the second driving structure is used to drive the upper module to move toward the lower module so that the upper module and the lower module are clamped and clamp the target parts together, and the first driving structure is used to drive the two clamping structures to move toward each other after the upper module and the lower module are clamped, so that the target part clamped by one of the clamping structures is joined with the target part clamped by the other clamping structure.

[0006] In some embodiments, the first driving structure includes a driving member, a screw and a slider, two sliders are provided and the two clamping structures are respectively installed on the two sliders, the slider is sleeved on the screw and threadedly connected to the screw, the two sliders correspond to opposite directions of the threads on the screw, and the driving member is used to drive the screw to rotate so that the two sliders move toward each other.

[0007] In some embodiments, the mold closing structure includes a mold base, the lower module is fixed on the mold base, the upper module is slidably disposed on the mold base, the second driving structure is installed on the mold base, and the mold base is fixedly connected to the slider.

[0008] In some embodiments, the upper module and the lower module together form a clamping cavity, the clamping cavity forms an opening on the end surface of the clamping structure facing the other clamping structure, one end of the target part is exposed in the opening, and a cutting blade is provided at the edge of the opening.

[0009] In some embodiments, the cutting blade is disposed around the edge of the opening and surrounds the periphery of the target part.

[0010] In some embodiments, the circumferential trajectory of the cutting blade is adapted to the outer contour of the target part.

[0011] In some embodiments, the upper module includes a first fixed block and a first clamping block, and the lower module includes a second fixed block and a second clamping block, the first clamping block and the second clamping block are respectively detachably mounted on the first fixed block and the second fixed block, and the end surfaces of the first clamping block and the second clamping block close to each other are provided with clamping grooves, and the clamping grooves on the first clamping block and the clamping grooves on the second clamping block together form the clamping cavity.

[0012] In some embodiments, a first blade segment is protruding from the end surface of the first clamping block facing the other first clamping block, and a second blade segment is protruding from the end surface of the second clamping block facing the other second clamping block. The first blade segment and the second blade segment are spliced ​​to form the cutting blade.

[0013] In some embodiments, the thickness of the first blade segment gradually decreases from the end surface of the first clamping block toward another first clamping block, and the thickness of the second blade segment gradually decreases from the end surface of the second clamping block toward another second clamping block.

[0014] In a second aspect, an automobile glass adhesive strip production line is provided, which includes the above-mentioned heat sealing equipment.

[0015] The heat sealing device provided by the present application has a second driving structure capable of driving the upper module to move toward the lower module so that the upper module and the lower module are molded together and jointly clamp the target part. Then the heater moves between the two mold-closing structures and approaches the target part for heating. After heating, the heater withdraws, and then the first driving structure drives the two mold-closing structures to move toward each other so that the target part clamped by one of the mold-closing structures contacts and bonds with the target part clamped by the other mold-closing structure. Therefore, the heat sealing device of the present application can automatically clamp the target part and heat-weld the target part, greatly improving the heat-welding efficiency of the target part and ensuring the consistency of product quality. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings required for use in the embodiments or exemplary technical descriptions will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0017] Figure 1 It is a schematic diagram of the overall structure of the heat sealing device provided in the embodiment of the present application;

[0018] Figure 2 It is a partial structural schematic diagram of the heat sealing device provided in the embodiment of the present application;

[0019] Figure 3 It is a schematic diagram of a partial split structure of a heat sealing device provided in an embodiment of the present application;

[0020] Figure 4 It is a partial structural schematic diagram of the mold clamping structure provided in an embodiment of the present application;

[0021] Figure 5 It is a structural schematic diagram of a mold clamping structure and a target part provided in an embodiment of the present application;

[0022] Figure 6 It is a schematic diagram of a partial cross-section structure of the mold-locking structure provided in an embodiment of the present application.

[0023] Among them, the reference numerals in the figure are:

[0024] 100, mold closing structure; 110, upper module; 111, first fixed block; 112, first clamping block; 120, lower module; 121, second fixed block; 122, second clamping block; 130, mold base; 140, second drive structure; 150, opening; 160, clamping cavity; 161, clamping groove; 170, fastener; 180, cutting blade; 181, first blade segment; 182, second blade segment; 200, target part; 300, first drive structure; 310, drive member; 320, screw; 330, slider; 400, heater; 500, workbench; 510, third drive structure; 520, storage area; 600, controller. DETAILED DESCRIPTION

[0025] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, 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. Obviously, the described embodiments are part of the embodiments of the present invention, rather than all of 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. Therefore, the following detailed description of the embodiments of the present invention provided in the drawings is not intended to limit the scope of the invention claimed for protection, but merely represents the selected embodiments of the present invention. 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.

[0026] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0027] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present invention, the meaning of "plurality" is two or more, unless otherwise clearly and specifically defined.

[0028] In the present invention, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may include that the first and second features are in direct contact, or may include that the first and second features are not in direct contact but are in contact through another feature between them. Moreover, a first feature being "above", "above" and "above" a second feature includes that the first feature is directly above and obliquely above the second feature, or simply indicates that the first feature is higher in level than the second feature. A first feature being "below", "below" and "below" a second feature includes that the first feature is directly below and obliquely below the second feature, or simply indicates that the first feature is lower in level than the second feature.

[0029] See also Figures 1 to 6 An embodiment of the present application provides a heat sealing device for joining two target parts 200 in a heated state. The heat sealing device includes a first driving structure 300, a clamping structure 100 for clamping the target part 200, and a heater 400 for transferring heat to the target part 200. Two clamping structures 100 are provided. The two clamping structures 100 are opposite to each other and are arranged to slide relative to each other. The heater 400 is arranged to slide back and forth between the two clamping structures 100 to approach the target part 200. The clamping structure 100 includes a second driving structure 140, a lower module 120 for placing the target part 200, and an upper module 110 slidably arranged relative to the lower module 120. The second driving structure 140 is used to drive the upper module 110 to move toward the lower module 120 so that the upper module 110 and the lower module 120 are clamped and jointly clamp the target part 200. The first driving structure 300 is used to drive the two clamping structures 100 to move toward each other after the upper module 110 and the lower module 120 are clamped, so that the target part 200 clamped by one of the clamping structures 100 is engaged with the target part 200 clamped by the other clamping structure 100.

[0030] It should be noted that the present application can slide and install two clamping structures 100 on a workbench 500 facing each other, and the heater 400 is used to heat the target part 200 clamped by the clamping structure 100. The target part 200 can be a sealing strip, and the heater 400 transfers heat to the sealing strip for heating, so that the sealing strip can melt and bond. The target part 200 can be made of plastic, and the heater 400 can make the material melt and bond under high temperature and high pressure, and finally realize the connection of the two target parts 200. This connection method is not only firm and reliable, but also the product after heat sealing has beautiful appearance and high practical value.

[0031] The heat sealing device provided in the present application has a second driving structure 140 that can drive the upper module 110 to move toward the lower module 120, so that the upper module 110 and the lower module 120 are molded together and jointly clamp the target part 200, and then the heater 400 moves between the two clamping structures 100 and approaches the target part 200 for heating. After heating, the heater 400 withdraws, and then the first driving structure 300 drives the two clamping structures 100 to move toward each other, so that the target part 200 clamped by one of the clamping structures 100 contacts and bonds with the target part 200 clamped by the other clamping structure 100. Therefore, the heat sealing device of the present application can automatically clamp the target part 200 and heat-weld the target part 200, which greatly improves the heat-welding efficiency of the target part 200 and can ensure the consistency of product quality.

[0032] In some embodiments, the first driving structure 300 includes a driving member 310, a screw rod 320 and a slider 330. Two sliders 330 are provided and the two clamping structures 100 are respectively mounted on the two sliders 330. The sliders 330 are sleeved on the screw rod 320 and are threadedly connected to the screw rod 320. The two sliders 330 correspond to the opposite directions of the threads on the screw rod 320. The driving member 310 is used to drive the screw rod 320 to rotate so that the two sliders 330 move toward each other. It can be understood that in the embodiment of the present application, the rotational motion of the screw rod 320 is converted into the linear motion of the slider 330, and only one driving member 310 can drive the two sliders 330 to move toward each other, and drive the two clamping structures 100 to move toward each other synchronously, which can simplify the structure, reduce the space occupied by the heat sealing equipment, and facilitate miniaturization.

[0033] In some embodiments, the mold closing structure 100 includes a mold base 130 , a lower module 120 is fixed on the mold base 130 , an upper module 110 is slidably disposed on the mold base 130 , a second driving structure 140 is installed on the mold base 130 , and the mold base 130 is fixedly connected to the slider 330 .

[0034] Specifically, the second driving structure 140 drives the upper module 110 to move up and down in the vertical direction, and the workbench 500 is also provided with a third driving structure 510, which is used to drive the heater 400 to move in the vertical direction, and the clamping structure 100 to move in the horizontal direction. Specifically, the driving member 310, the second driving structure 140 and the third driving structure 510 can be cylinders.

[0035] In the embodiment of the present application, the upper module 110 and the lower module 120 are combined to form a clamping cavity 160, and the clamping cavity 160 forms an opening 150 on the end surface of the clamping structure 100 facing the other clamping structure 100, and one end of the target part 200 is exposed in the opening 150. A cutting blade 180 is provided at the edge of the opening 150. Therefore, when the two target parts 200 of the two clamping structures 100 are joined, the two cutting blades 180 of the two clamping structures 100 can cut off part of the target part 200 located at the junction of the two target parts 200.

[0036] It should be noted that the above-mentioned "partial target part 200" may be the waste material overflowing from the joint when the two target parts 200 are joined, or it may be the excess waste material such as burrs on the periphery of the joint end of the two unjoined target parts 200.

[0037] The present application sets a cutting blade 180 on the joint surface of the two clamping structures 100. When the two target parts 200 of the two clamping structures 100 are joined, the cutting blade 180 can cut off part of the target part 200 at the joint. Therefore, while completing the heat connection of the target part 200, the burrs generated by the heat connection of the target part 200 can also be removed. There is no need to add a manual trimming process, which improves the joining efficiency of the target part 200 and improves the appearance surface quality of the joint of the target part 200.

[0038] Preferably, the cutting blade 180 is arranged around the edge of the opening 150 and around the periphery of the target part 200, that is, the cutting blade 180 of the present application is a ring-shaped structure. It can be understood that when the end faces of two target parts 200 are bonded, the overflow direction of the flash burrs at the heat-sealing position of the target part 200 is not fixed, that is, the flash burrs may be generated around the heat-sealing position of the target part 200, and the cutting blade 180 of the present application is arranged around the periphery of the target part 200, so no matter which direction of the heat-sealing position of the target part 200 flash burrs are generated, when the mold is closed, they will be cut by the cutting blade 180, so that the cutting range of the cutting blade 180 can be increased and the cutting effect of the cutting blade 180 can be enhanced.

[0039] Furthermore, in the present application, the circumferential trajectory of the cutting blade 180 is adapted to the outer contour of the target part 200, so the cutting blade can fit more closely to the outer contour of the target part 200, thereby further enhancing the cutting effect of the cutting blade 180 on the flash burrs. Moreover, since the cutting blade 180 itself has a certain thickness, when the target part 200 extends from the opening 150 of the clamping cavity 160, the cutting blade 180 can also clamp the target part 200, thereby making the positioning effect of the target part 200 better, avoiding the misalignment of the two target parts 200 during the joining, thereby affecting the joining effect.

[0040] In the present application, the cutting blade 180 may include a plurality of blade segments, and the plurality of blade segments may be connected end to end in sequence according to a preset trajectory, and the plurality of blade segments may be combined to form a closed figure that matches the outer contour of the target part 200, and the outer contour of the target part 200 is the cross-sectional shape of the target part 200. It can be understood that the connection trajectory of the plurality of blade segments may be flexibly adjusted according to the outer contour shape of the target part 200, so that target parts 200 of different shapes can be joined and cut, thereby improving the flexibility and adaptability of the heat sealing device of the present application.

[0041] For example, when the cross-sectional shape of the target part 200 is a triangle, the cutting blade 180 may include three straight blade segments connected end to end in sequence, so that the three blade segments are arranged to form a triangle shape; when the cross-sectional shape of the target part 200 is a quadrilateral, the cutting blade 180 may include four straight blade segments connected end to end in sequence, so that the four blade segments are arranged to form a triangle shape; when the cross-sectional shape of the target part 200 is a pentagon, the cutting blade 180 may include five straight blade segments connected end to end in sequence, so that the five blade segments are arranged to form a pentagon shape, and so on. The number of blade segments can be flexibly selected according to actual conditions, and this application does not make a sole limitation on this.

[0042] In addition, the blade segment can be in the shape of a straight line, a broken line or an arc. Optionally, the broken line can include two sidelines connected in sequence, both of which are straight lines, and the two sidelines are symmetrically arranged about the symmetry axis passing through the connection point of the two sidelines, that is, the above-mentioned broken line forms an isosceles triangle without a base. When the blade segment is in the shape of an arc, the preset figure surrounded by multiple blade segments is convex, forming a convex curved polygon, which is similar to a petal shape. Of course, the cutting blade 180 can include blade segments of different shapes at the same time, such as a straight blade segment and a broken line blade segment, or a straight blade segment and an arc blade segment, or a broken line blade segment and an arc blade segment, or a straight blade segment, a broken line blade segment and an arc blade segment, so that the preset figure formed by the multiple blade segments is an irregular figure, so that it can be adapted to the target part 200 with an irregular cross-sectional shape.

[0043] In some embodiments, the upper module 110 includes a first fixed block 111 and a first clamping block 112, and the lower module 120 includes a second fixed block 121 and a second clamping block 122. The first clamping block 112 and the second clamping block 122 are detachably mounted on the first fixed plate and the second fixed block 121, respectively. The end surfaces of the first clamping block 112 and the second clamping block 122 that are close to each other are provided with clamping grooves 161. The clamping grooves 161 on the first clamping block 112 and the clamping grooves 161 on the second clamping block 122 are enclosed to form a clamping cavity 160. Since the first clamping block 112 and the second clamping block 122 of the present application are detachably mounted on the first fixed plate and the second fixed block 121, respectively, when heat-sealing target parts 200 of different shapes, only the first clamping block 112 and the second clamping block 122 need to be replaced accordingly, without replacing the entire clamping structure 100, so that the heat-sealing device of the present application has the advantages of simple operation, convenient production, and cost saving.

[0044] In the embodiment of the present application, the shape of the clamping groove 161 can be adapted to the outer contour of the target part 200, so that the inner wall of the clamping cavity 160 fits more closely with the outer surface of the target part 200, and the clamping of the target part 200 is more stable.

[0045] In the present application, a first blade segment 181 is protrudingly provided on the end surface of the first clamping block 112 facing the other first clamping block 112, and a second blade segment 182 is protrudingly provided on the end surface of the second clamping block 122 facing the other second clamping block 122. The first blade segment 181 and the second blade segment 182 are spliced ​​to form a cutting blade 180, that is, the first blade segment 181 and the second blade segment 182 are both semi-annular structures. When the first clamping block 112 and the second clamping block 122 are combined, the first blade segment 181 and the second blade segment 182 can be spliced ​​to form an annular structure.

[0046] In some embodiments, the thickness of the first blade segment 181 gradually decreases from the end face of the first clamping block 112 toward the direction approaching the other first clamping block 112, and the thickness of the second blade segment 182 gradually decreases from the end face of the second clamping block 122 toward the direction approaching the other second clamping block 122. That is to say, along the mold closing direction, the first blade segment 181 and the second blade segment 182 are tapered, and the thickness of the connecting end with the end faces of the first clamping block 112 and the second clamping block 122 is relatively large, which can ensure the connection strength with the end faces of the first clamping block 112 and the second clamping block 122, making the structure of the cutting blade 180 more stable.

[0047] In the present application, the first blade segment 181 and the second blade segment 182 can be hard metal parts, that is, the first blade segment 181 and the second blade segment 182 can be made of hard metal materials, such as tungsten carbide, magnesium alloy, steel or other high-rigidity hard alloy materials, etc., which can improve the hardness and strength of the first blade segment 181 and the second blade segment 182, achieve successful shearing in one time, and are not easy to wear during long-term use.

[0048] In some embodiments, a recessed portion is provided on the end surface of the first clamping block 112 or the second clamping block 122 facing the other first clamping block 112 or the second clamping block 122, and the cutting blade 180 is provided on the bottom wall of the recessed portion. The cutting edge of the cutting blade 180 is flush with the end surface of the first clamping block 112 or the second clamping block 122 facing the other first clamping block 112 or the second clamping block 122. Therefore, when the two target parts 200 are engaged, the end surfaces of the two clamping structures 100 that are close to each other can abut against each other, ensuring that the two clamping structures 100 have a larger contact area when in contact, making the clamping action more stable while not affecting the shearing of the cutting blade 180.

[0049] In addition, the heat sealing equipment also includes a fastener 170, and the end faces of the first clamping block 112 and the second clamping block 122 that are close to each other are provided with a first connecting hole, and the first fixing block 111 and the second fixing block 121 are provided with a second connecting hole corresponding to the first connecting hole. The fastener 170 is passed through the first connecting hole and the second connecting hole to fix the first clamping block 112 and the first fixing block 111 and the second clamping block 122 and the second fixing block 121, thereby ensuring the connection strength between the first clamping block 112 and the first fixing block 111 and the second clamping block 122 and the second fixing block 121.

[0050] In some embodiments, a controller 600 is also provided on the workbench 500, and the controller 600 is connected to each structure in communication. In addition, a plurality of storage areas 520 for storing materials are also provided on the workbench 500. A temperature controller for controlling temperature is also provided on the workbench 500.

[0051] The working process of the heat sealing device of the present application is as follows: first turn on the machine and preheat for about 10 minutes until the temperature rises to the set temperature; then place the target part 200 on the lower module 120; then press the K1 button and the K2 button at the same time, the equipment starts to move, the second drive structure 140 drives the upper module 110 to press the target part 200, and then the heater 400 rises to the set position, and the first drive structure 300 drives the two clamping structures 100 to approach the heater at the same time (2-3 seconds can be set), after the time is up, the clamping structure 100 moves away 2-3mm, the heater 400 withdraws, and the two clamping structures 100 are pressed together (3-5 seconds can be set), after the time is up, the mold separates upward and stays (3-5 seconds can be set), the heat sealing of the target part 200 is completed, and finally the mold returns to its original position.

[0052] The present application also proposes an automobile glass strip production line, which includes a heat sealing device. The specific structure of the heat sealing device refers to the above embodiment. Since the automobile glass strip production line adopts all the technical solutions of all the above embodiments, it also has all the beneficial effects brought by the technical solutions of the above embodiments, which will not be repeated here one by one.

[0053] To summarize, in the heat sealing device provided by the present application, the second driving structure 140 can drive the upper module 110 to move toward the lower module 120, so that the upper module 110 and the lower module 120 are molded and jointly clamp the target part 200, and then the heater 400 moves to between the two clamping structures 100 and approaches the target part 200 for heating. After heating, the heater 400 withdraws, and then the first driving structure 300 drives the two clamping structures 100 to move toward each other, so that the target part 200 clamped by one of the clamping structures 100 contacts and bonds with the target part 200 clamped by the other clamping structure 100. Therefore, the heat sealing device of the present application can automatically clamp the target part 200 and heat-weld the target part 200, which greatly improves the heat-welding efficiency of the target part 200 and can ensure the consistency of product quality.

[0054] The above are only optional embodiments of the present application and are not intended to limit the present application. For those skilled in the art, the present application may have various changes and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application should be included in the scope of the claims of the present application.

Claims

1. A heat-sealing device for joining two target parts (200) in a heated state, characterized in that: The heat sealing device comprises a first driving structure (300), a clamping structure (100) for clamping the target part (200), and a heater (400) for transferring heat to the target part (200), wherein two clamping structures (100) are provided, the two clamping structures (100) are opposite to each other and are arranged to slide relative to each other, the heater (400) is arranged to slide reciprocatingly between the two clamping structures (100) to approach the target part (200), and the clamping structure (100) comprises a second driving structure (140), a lower module (120) for placing the target part (200), and a heater (400) relative to the lower module (120). 20) an upper module (110) slidably arranged, the second driving structure (140) is used to drive the upper module (110) to move toward the lower module (120), so that the upper module (110) and the lower module (120) are molded together and jointly clamp the target part (200), and the first driving structure (300) is used to drive the two clamping structures (100) to move toward each other after the upper module (110) and the lower module (120) are molded together, so that the target part (200) clamped by one of the clamping structures (100) is engaged with the target part (200) clamped by the other clamping structure (100).

2. The heat sealing device according to claim 1, characterized in that: The first driving structure (300) comprises a driving member (310), a screw rod (320) and a slider (330). Two sliders (330) are provided and the two clamping structures (100) are respectively mounted on the two sliders (330). The sliders (330) are sleeved on the screw rod (320) and are threadedly connected to the screw rod (320). The two sliders (330) have opposite directions of threads corresponding to the threads on the screw rod (320). The driving member (310) is used to drive the screw rod (320) to rotate so that the two sliders (330) move toward each other.

3. The heat sealing device according to claim 2, characterized in that: The mold clamping structure (100) comprises a mold base (130), the lower module (120) is fixed on the mold base (130), the upper module (110) is slidably arranged on the mold base (130), the second driving structure (140) is installed on the mold base (130), and the mold base (130) is fixedly connected to the slider (330).

4. The heat sealing device according to claim 1, characterized in that: The upper module (110) and the lower module (120) are combined to form a clamping cavity (160), and the clamping cavity (160) forms an opening (150) on the end surface of the clamping structure (100) facing the other clamping structure (100), one end of the target part (200) is exposed in the opening (150), and a cutting blade (180) is provided at the edge of the opening (150).

5. The heat sealing device according to claim 4, characterized in that: The cutting blade (180) is disposed along the edge of the opening (150) and surrounds the periphery of the target part (200).

6. The heat sealing device according to claim 5, characterized in that: The circumferential trajectory of the cutting blade (180) is adapted to the outer contour of the target part (200).

7. The heat sealing device according to claim 4, characterized in that: The upper module (110) includes a first fixed block (111) and a first clamping block (112), and the lower module (120) includes a second fixed block (121) and a second clamping block (122); the first clamping block (112) and the second clamping block (122) are respectively detachably mounted on the first fixed block (111) and the second fixed block (121); the end surfaces of the first clamping block (112) and the second clamping block (122) close to each other are provided with clamping grooves (161); the clamping grooves (161) on the first clamping block (112) and the clamping grooves (161) on the second clamping block (122) are combined to form the clamping cavity (160).

8. The heat sealing device according to claim 7, characterized in that: A first blade segment (181) is protrudingly provided on the end surface of the first clamping block (112) facing the other first clamping block (112), and a second blade segment (182) is protrudingly provided on the end surface of the second clamping block (122) facing the other second clamping block (122), and the first blade segment (181) and the second blade segment (182) are spliced ​​to form the cutting blade (180).

9. The heat sealing device according to claim 8, characterized in that: The thickness of the first blade segment (181) gradually decreases from the end surface of the first clamping block (112) toward another first clamping block (112), and the thickness of the second blade segment (182) gradually decreases from the end surface of the second clamping block (122) toward another second clamping block (122).

10. An automobile glass adhesive strip production line, characterized by: Comprising the heat sealing device as claimed in any one of claims 1 to 9.

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