Thermocompression welding assembly and thermocompression welding device

Abstract

The utility model belongs to the field of thermocompression welding, and particularly relates to a thermocompression welding assembly and a thermocompression welding device.According to the thermocompression welding assembly, a sealing film carrier and a positioning base are arranged on a position switching mechanism, and the position switching of the sealing film carrier stacked with sealing films and the positioning base where a product is positioned is achieved through the position switching mechanism; firstly, a sealing film carrier enters a hot pressing position under the action of a position switching mechanism, a heat sealing head moves downwards under the action of a lifting mechanism and is attached to a sealing film, and after the sealing film is positioned and clamped, the heat sealing head is lifted to a certain height, the position switching mechanism carries out position switching to drive a positioning seat to enter the hot pressing position, and the heat sealing head is aligned with the positioning seat loaded with a product; the heat-sealing head feeding device moves downwards under the action of the lifting mechanism, a product is accurately positioned and welded, a material taking and welding cycle period is completed, manual feeding of a heat-sealing head before each time of hot-pressing welding is not needed, and the welding efficiency is improved.

Description

Technical Field

[0001] The present application relates to the technical field of hot pressing welding, and in particular to a hot pressing welding assembly and a hot pressing welding device. Background Art

[0002] In the field of medical consumables, deep well plates, extraction cassettes, test kits and other consumables need to be sealed during the production process to prevent the loss and mutual contamination of the reagents stored inside. At present, the sealing film (such as aluminum-plastic film, sealing film, etc.) is usually sealed by hot pressing welding.

[0003] The existing automatic assembly line hot melt welding equipment on the market has high sealing efficiency and good product consistency, but the equipment structure is complex and the cost is high, which is suitable for large-scale assembly line operations. The manual feeding hot melt welding equipment has a simple structure and low cost, which is suitable for small-batch product sealing operations. However, due to the thin film (thickness of about 0.05mm), light weight, and electrostatic adsorption, the traditional manual feeding and sealing with the help of tooling is cumbersome and has low production efficiency. In addition, it is easy to be burned by the high temperature of the welding head during the operation. Utility Model Content

[0004] The embodiments of the present application provide a hot pressing welding assembly and a hot pressing welding device, which aim to improve welding efficiency while ensuring welding quality and reduce the possibility of being burned by high temperature of the welding head during the loading process.

[0005] To this end, according to one aspect of the present application, a hot pressing welding assembly is provided, including a heat sealing head, a position switching mechanism, a film sealing carrier and a positioning seat;

[0006] The lower end of the heat sealing head has a heat pressing surface for contacting the sealing film, and an air path is arranged inside the heat sealing head, and the air path forms a negative pressure adsorption port on the heat pressing surface;

[0007] The position switching mechanism is arranged below the heat sealing head, the film sealing carrier and the positioning seat are both arranged on the position switching mechanism, and the position switching mechanism is used to drive the positioning seat to switch between entering the heat pressing position and moving out of the heat pressing position, the heat pressing position is located directly below the heat sealing head, and when the positioning seat moves out of the heat pressing position, the film sealing carrier enters the heat pressing position;

[0008] The film sealing carrier is provided with a film carrying surface for stacking sealing films, and the positioning seat has a fixing position for positioning the product.

[0009] Optionally, an elastic member is provided between the film sealing carrier and the position switching mechanism, and the elastic member is used to provide a vertical elastic force for the film sealing carrier.

[0010] Optionally, the position switching mechanism includes a guide rail and a carrier slidably arranged on the guide rail, the film sealing carrier and the positioning seat are arranged on the carrier at intervals in the length direction of the guide rail, the carrier can slide on the guide rail along the length direction of the guide rail, and the hot pressing position is on the moving path of the carrier.

[0011] Optionally, the position switching mechanism further includes a driving member, a driving end of which is connected to the carrier, and the driving member is used to drive the carrier to slide along the length direction of the guide rail.

[0012] Optionally, a first positioning groove is further provided on the hot pressing surface, and a first positioning protrusion matched with the first positioning groove is provided on the film carrier surface.

[0013] Optionally, a second positioning protrusion is further provided on the hot pressing surface, and a second positioning groove matched with the second positioning protrusion is provided on the film carrier surface.

[0014] Optionally, one of the positioning seat and the heat sealing head is provided with an alignment protrusion, and the other of the positioning seat and the heat sealing head is provided with an alignment groove corresponding to the alignment protrusion.

[0015] Optionally, the heat sealing head is provided with a plurality of the heat pressing surfaces, the positioning seat is provided with a plurality of the fixing positions, and the film sealing carrier is provided with a plurality of film carrying surfaces;

[0016] When the film sealing carrier enters the hot pressing position, the multiple film carrying surfaces and the multiple hot pressing surfaces are respectively arranged one by one in the vertical direction; when the positioning seat enters the hot pressing position, the multiple fixing positions and the multiple hot pressing surfaces are respectively arranged one by one in the vertical direction.

[0017] According to another aspect of the present application, a hot pressing welding device is provided, comprising a lifting mechanism, a heating plate and the hot pressing welding assembly as described above, wherein the heat sealing head is arranged on the lifting mechanism through the heating plate, and the lifting mechanism is used to drive the heating plate and the heat sealing head to move up and down together to approach or move away from the hot pressing position.

[0018] Optionally, the hot pressure welding device also includes a base, a lifting plate and a guide assembly, the guide assembly includes a vertical guide member arranged on the base and a sliding member connected to the lifting plate and slidably arranged on the vertical guide member, the heating plate and the heat sealing head are arranged at the lower end of the lifting plate in sequence from top to bottom, the position switching mechanism is arranged on the base below the heat sealing head, and the lifting mechanism is connected to the lifting plate and is used to drive the lifting plate to move up and down along the vertical guide member.

[0019] The hot pressing welding assembly and hot pressing welding device provided by the present application have the beneficial effects that: compared with the prior art, in the hot pressing welding assembly of the present application, by arranging the film carrier and the positioning seat on the position switching mechanism, the film carrier stacked with the film and the positioning seat with the product positioned are switched by means of the position switching mechanism, and a certain number of film stacks are positioned on the film carrier surface of the film carrier. When used specifically, the film carrier first enters the hot pressing position under the action of the position switching mechanism, the heat sealing head moves down under the action of the lifting mechanism and fits with the film, the air path in the heat sealing head is evacuated, the negative pressure adsorption port on the hot pressing surface is used to adsorb and fix the film, after the film is positioned and clamped, the heat sealing head is lifted to a certain height, the position switching mechanism switches the position, drives the positioning seat to enter the hot pressing position, the heat sealing head aligns with the positioning seat loaded with the product, moves downward under the action of the lifting mechanism, and the product is precisely positioned and welded, completing a material collection and welding cycle. The hot pressing welding device using the hot pressing welding assembly does not need to manually load the heat sealing head before each hot pressing welding, thereby improving welding efficiency and reducing the possibility of being burned by high temperature of the welding head during manual loading. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art 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.

[0021] in:

[0022] Figure 1 is a structural schematic diagram of a hot pressing welding assembly shown in an embodiment of the present application;

[0023] Figure 2 It is a schematic diagram showing that a film sealing carrier and a positioning seat in a hot pressing welding assembly switch positions under the action of a position switching mechanism in one embodiment of the present application;

[0024] Figure 3 It is a structural schematic diagram of a film sealing carrier and a positioning seat on a position switching mechanism in a hot pressing welding assembly shown in an embodiment of the present application;

[0025] Figure 4 It is a schematic diagram of the bottom structure of a position switching mechanism in a hot pressing welding assembly shown in an embodiment of the present application;

[0026] Figure 5 is a structural schematic diagram of a hot pressing welding device shown in an embodiment of the present application;

[0027] Figure 6It is a schematic structural diagram of another hot pressing welding device shown in an embodiment of the present application.

[0028] Description of main component symbols:

[0029] 100, sealing film; 110, first positioning hole; 120, second positioning hole; 200, product;

[0030] 10. heat sealing head; 11. heat pressing surface; 12. interface; 111. negative pressure adsorption port; 112. first positioning groove; 113. second positioning protrusion;

[0031] 20. Position switching mechanism; 21. Carrier; 22. Guide rail; 23. Driving member;

[0032] 30, film sealing carrier; 31, film carrying surface; 311, first positioning protrusion; 312, second positioning groove;

[0033] 40, positioning seat; 41, fixing position; 411, first limiting portion; 412, second limiting portion;

[0034] 50. Elastic parts;

[0035] 60. Alignment bulge;

[0036] 70. Alignment groove;

[0037] 80. Heating plate;

[0038] 90. Lifting mechanism;

[0039] 1000, base;

[0040] 2000. Lifting plate;

[0041] 3000, guide assembly; 3100, vertical guide member; 3200, sliding member;

[0042] 4000, thermal insulation;

[0043] 5000. Shell. DETAILED DESCRIPTION

[0044] In order to facilitate the understanding of the present application, the present application will be described more comprehensively with reference to the relevant drawings below. The preferred embodiments of the present application are provided in the drawings. However, the present application can be implemented in many other different forms and is not limited to the embodiments described herein. On the contrary, the purpose of providing these embodiments is to make the understanding of the disclosure of the present application more thorough and comprehensive.

[0045] It should be noted that when an element is referred to as being "fixed to" or "disposed on" another element, it can be directly on the other element or indirectly on the other element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or indirectly connected to the other element.

[0046] It should be understood that the terms "length", "width", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating the orientation or position relationship, are based on the orientation or position relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the device or element referred to 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 application.

[0047] 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. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of the features. In the description of this application, the meaning of "plurality" is two or more, unless otherwise clearly and specifically defined.

[0048] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those commonly understood by those skilled in the art to which this application belongs. The terms used herein in the specification of this application are only for the purpose of describing specific embodiments and are not intended to limit this application.

[0049] It should also be noted that, in the embodiments of the present application, the same figure mark is used to represent the same component or the same part. For the same parts in the embodiments of the present application, the figure may only mark one of the parts or components as an example. It should be understood that the figure mark also applies to other identical parts or components.

[0050] According to one aspect of the present application, an embodiment of the present application provides a hot pressing welding assembly, such as Figure 1-Figure 3As shown, the hot pressing welding assembly includes a heat sealing head 10, a position switching mechanism 20, a film sealing carrier 30 and a positioning seat 40. The lower end of the heat sealing head 10 has a hot pressing surface 11 for contacting the sealing film 100 (including but not limited to aluminum film and aluminum-plastic film), and an air path is arranged in the heat sealing head 10. The air path forms a negative pressure adsorption port 111 on the hot pressing surface 11, and the air path also forms an interface 12 for connecting a negative pressure source on the side of the heat sealing head 10. The position switching mechanism 20 is arranged below the heat sealing head 10, and the film sealing carrier 30 and the positioning seat 40 are both arranged on the position switching mechanism 20. The position switching mechanism 20 is used to drive the positioning seat 40 to switch between entering the hot pressing position and moving out of the hot pressing position. The hot pressing position is located directly below the heat sealing head 10. When the positioning seat 40 moves out of the hot pressing position, the film sealing carrier 30 enters the hot pressing position. The sealing film carrier 30 is provided with a film carrying surface 31 for stacking the sealing films 100 , and the positioning seat 40 has a fixing position 41 for positioning the product 200 .

[0051] When in use, the heat sealing head 10 is installed on a lifting mechanism (not shown in the figure), and the position switching mechanism 20 is arranged below the heat sealing head 10. First, a certain number of sealing films 100 are stacked and positioned on the film carrier surface 31 of the sealing film carrier 30. The sealing film carrier 30 is driven into the hot pressing position by the position switching mechanism 20. After the heat sealing head 10 moves down under the action of the lifting mechanism and fits with the sealing film 100, the air path in the heat sealing head 10 is evacuated, and the sealing film 100 is adsorbed and fixed by the negative pressure adsorption port 111 on the hot pressing surface 11. After the sealing film 100 is positioned and clamped, the heat sealing head 10 is lifted to a certain height, and the position switching mechanism 20 switches its position, driving the positioning seat 40 to enter the hot pressing position. The heat sealing head 10 aligns with the positioning seat 40 loaded with the product 200, and moves downward under the action of the lifting mechanism, and the product 200 is precisely positioned and welded, completing a material collection and welding cycle.

[0052] In the embodiment of the present application, the sealing film carrier 30 and the positioning seat 40 are arranged on the position switching mechanism 20, and the position switching mechanism 20 is used to realize the switching of the positions of the sealing film carrier 30 stacked with the sealing film 100 and the positioning seat 40 positioned with the product 200. The use of the hot pressing welding assembly does not require manual loading of the heat sealing head 10 before each hot pressing welding, thereby improving the welding efficiency and reducing the possibility of being burned by the high temperature of the welding head during the manual loading process.

[0053] In one embodiment, if Figure 1-Figure 3 As shown, an elastic member 50 is disposed between the film sealing carrier 30 and the position switching mechanism 20 , and the elastic member 50 is used to provide a vertical elastic force for the film sealing carrier 30 .

[0054] It can be understood that as the sealing film 100 stacked on the sealing film carrier 30 gradually decreases during the welding process, it will affect the realization of the vacuum adsorption function of the hot pressing surface 11 on the heat sealing head 10. The elastic part 50 is used to provide vertical elastic force for the sealing film carrier 30 to compensate for the height difference of vacuum adsorption during welding and achieve continuous and stable feeding.

[0055] Specifically, the elastic member 50 may be a gas spring, a coil spring or other member capable of providing elastic force.

[0056] In one embodiment, if Figure 2-Figure 3 As shown, the position switching mechanism 20 includes a guide rail 22 and a carrier 21 slidably disposed on the guide rail 22, the film sealing carrier 30 and the positioning seat 40 are spaced apart on the carrier 21 in the length direction of the guide rail 22, the carrier 21 can slide on the guide rail 22 along the length direction of the guide rail 22, and the hot pressing position is on the moving path of the carrier 21.

[0057] Through the above arrangement, the position switching mechanism 20 has a simple structure, and the film sealing carrier 30 and the positioning seat 40 can be switched at the hot pressing position by pushing and pulling the carrier 21 to slide on the guide rail 22, which is easy to operate.

[0058] Preferably, two guide rails 22 are provided, and the two guide rails 22 are arranged in parallel and spaced apart to improve the stability of the movement of the platform 21. Specifically, a slider can be provided at the bottom of the platform 21, and the slider slides with the guide rail 22, or a slide groove that slides with the guide rail 22 is directly provided at the bottom of the platform 21.

[0059] In a specific embodiment, see Figure 3 and Figure 4 As shown, the position switching mechanism 20 further includes a driving member 23, the driving end of which is connected to the carrier 21, and the driving member 23 is used to drive the carrier 21 to slide along the length direction of the guide rail 22. The driving member 23 drives the carrier 21 to move, which saves manpower and ensures accurate position switching.

[0060] Specifically, the driving member 23 can be a linear drive such as a cylinder, a linear motor, or an electric push rod.

[0061] In another embodiment, the position switching mechanism 20 may adopt a turntable structure (not shown in the figure) in addition to the slide structure in the above-mentioned embodiment. It can be understood that the film sealing carrier 30 and the positioning seat 40 are arranged on the turntable at intervals along the circumferential direction, and the hot pressing position is on the moving path of the turntable. The position switching of the film sealing carrier 30 and the positioning seat 40 on the hot pressing position is achieved by the rotation of the turntable.

[0062] In one embodiment, if Figure 1As shown, a first positioning groove 112 is further provided on the hot pressing surface 11 , and a first positioning protrusion 311 adapted to the first positioning groove 112 is provided on the film carrying surface 31 .

[0063] It should be noted that a first positioning hole 110 is provided on the sealing film 100 and is adapted to the first positioning protrusion 311 on the film carrier surface 31. The first positioning protrusion 311 cooperates with the first positioning hole 110 to realize accurate positioning of the sealing film 100 on the film carrier surface 31, and the product 200 to be welded with the sealing film 100 is positioned on the positioning seat 40. The first positioning protrusion 311 on the film carrier surface 31 can not only position the sealing film 100, but also cooperate with the first positioning groove 112 thereon to position it during the downward pressing process of the heat sealing head 10, so as to ensure welding accuracy.

[0064] In one implementation, the cross-sections of the first positioning groove 112 and the first positioning protrusion 311 are circular, in which case the number of the first positioning groove 112 and the first positioning protrusion 311 are both set to multiple; in another implementation, the cross-sections of the first positioning groove 112 and the first positioning protrusion 311 are square, elliptical or irregular, in which case the number of the first positioning groove 112 and the first positioning protrusion 311 are only set to one.

[0065] In one embodiment, if Figure 1 As shown, a second positioning protrusion 113 is further provided on the hot pressing surface 11 , and a second positioning groove 312 adapted to the second positioning protrusion 113 is provided on the film carrying surface 31 .

[0066] Through the above design, a second positioning hole 120 can be set on the sealing film 100 at a position corresponding to the second positioning protrusion 113. Through the mutual cooperation between the second positioning protrusion 113 and the second positioning groove 312, the positioning accuracy between the film carrier surface 31 and the hot pressing surface 11 is further improved, thereby further improving the positioning accuracy of the sealing film 100 on the hot pressing surface 11.

[0067] Specifically, the shapes and numbers of the second positioning protrusion 113 and the second positioning groove 312 can refer to the first positioning groove 112 and the first positioning protrusion 311 in the above embodiment, and will not be described in detail here. Preferably, at least two second positioning protrusions 113 are provided, and this design further improves the accuracy and reliability of the positioning process of the sealing film 100.

[0068] In one embodiment, if Figure 1 As shown, one of the positioning seat 40 and the heat sealing head 10 is provided with an alignment protrusion 60 , and the other of the positioning seat 40 and the heat sealing head 10 is provided with an alignment groove 70 corresponding to the alignment protrusion 60 .

[0069] Through the mutual cooperation of the alignment protrusion 60 and the alignment groove 70, the positioning accuracy between the positioning seat 40 and the heat sealing head 10 can be improved, thereby improving the positioning accuracy between the sealing film 100 adsorbed and fixed on the hot pressing surface 11 and the product 200 fixed on the positioning seat 40, ensuring that the welding position is accurate and reliable.

[0070] Specifically, the alignment protrusion 60 includes a plurality of pins, and the alignment groove 70 includes pin holes corresponding to the plurality of pins. The pin hole matching positioning is simple and reliable. Figure 1 As shown, multiple pins are arranged linearly at the lower end of the heat sealing head 10, and multiple pin holes are also arranged linearly at the top of the positioning seat 40. Of course, it is understandable that multiple pins and multiple pin holes can also have other arrangements, which are not limited here.

[0071] In one embodiment, if Figure 1 As shown, there are multiple negative pressure adsorption ports 111, and the multiple negative pressure adsorption ports 111 are evenly distributed on the hot pressing surface 11. The multiple negative pressure adsorption ports 111 are used to perform multi-point adsorption on the sealing film 100, thereby improving the firmness of the fixing of the sealing film 100. The multiple negative pressure adsorption ports 111 are evenly distributed on the hot pressing surface 11. The sealing film 100 is subjected to uniform force as a whole under the action of negative pressure adsorption, thereby ensuring the flatness of the sealing film 100 and reducing the possibility of distortion / warping / deformation of the sealing film 100.

[0072] In one embodiment, if Figure 1 As shown, the fixed position 41 is provided with a first limiting portion 411 for limiting the product 200 in the horizontal direction and a second limiting portion 412 for limiting the product 200 in the vertical direction. Specifically, the specific shapes and structures of the first limiting portion 411 and the second limiting portion 412 need to be designed according to the specific shape of the product 200 (such as a retaining edge, a limiting groove / block, etc.), as long as the product 200 can be limited in the horizontal and vertical directions, thereby limiting the product 200 to the fixed position 41, and no sole limitation is made here.

[0073] In one embodiment, if Figure 1 As shown, the heat sealing head 10 has a plurality of heat pressing surfaces 11, the positioning seat 40 is provided with a plurality of fixing positions 41, and the film sealing carrier 30 is provided with a plurality of film carrying surfaces 31. Figure 2 As shown, when the film carrier 30 enters the hot pressing position, the multiple film carrier surfaces 31 and the multiple hot pressing surfaces 11 are respectively arranged one by one in the vertical direction; when the positioning seat 40 enters the hot pressing position, the multiple fixing positions 41 and the multiple hot pressing surfaces 11 are respectively arranged one by one in the vertical direction. With this design, multiple products 200 and the film 100 can be hot-melt welded at one time, thereby improving welding efficiency.

[0074] According to another aspect of the present application, an embodiment of the present application further provides a hot pressing welding device, such as Figure 5 As shown, the hot pressing welding device includes a lifting mechanism 90, a heating plate 80 and a hot pressing welding assembly in any of the above embodiments. The heat sealing head 10 is arranged on the lifting mechanism 90 through the heating plate 80. The lifting mechanism 90 is used to drive the heating plate 80 and the heat sealing head 10 to move up and down together to approach or move away from the hot pressing position.

[0075] Since the hot pressing welding assembly in the above embodiment is adopted, the welding efficiency is improved while the welding position accuracy is ensured.

[0076] In one embodiment, please refer to Figure 5 The hot pressing welding device also includes a base 1000, a lifting plate 2000 and a guide assembly 3000. The guide assembly 3000 includes a vertical guide member 3100 arranged on the base 1000 and a sliding member 3200 connected to the lifting plate 2000 and slidably arranged on the vertical guide member 3100. The heating plate 80 and the heat sealing head 10 are arranged at the lower end of the lifting plate 2000 from top to bottom. The position switching mechanism 20 is arranged on the base 1000 below the heat sealing head 10. The lifting mechanism 90 is connected to the lifting plate 2000 and is used to drive the lifting plate 2000 to move up and down along the vertical guide member 3100.

[0077] By setting up the guide assembly 3000, the stability of the heating plate 80 and the heat sealing head 10 during the lifting and lowering movement is improved, wherein the vertical guide member 3100 in the guide assembly 3000 can adopt a guide rod, and the sliding member 3200 adopts a sliding sleeve that slides with the guide rod. Of course, the vertical guide member 3100 can also adopt a vertically arranged track, and accordingly, the sliding member 3200 adopts a sliding block that slides with the track.

[0078] Specifically, the lifting mechanism 90 can adopt a linear drive mechanism such as an electric cylinder, an air cylinder or an oil cylinder. The cylinder body of the electric cylinder, the air cylinder or the oil cylinder is fixed on the mounting plate, and the piston rod of the electric cylinder, the air cylinder or the oil cylinder passes downward through the mounting plate and is connected to the lifting plate 2000 through a floating joint.

[0079] In a specific embodiment, Figure 5 As shown, a heat insulating member 4000 is disposed between the heating plate 80 and the lifting plate 2000. The heat insulating member 4000 is used to reduce the heat transfer from the heating plate 80 to the lifting plate 2000 located above it, thereby reducing damage to the lifting plate 2000.

[0080] Preferably, the thermal insulation member 4000 includes a plurality of thermal insulation columns, and the contact area between the two ends of the thermal insulation columns and the heating plate 80 and the lifting plate 2000 is small, which can effectively reduce the conduction of heat. Grooves and / or through holes are also provided on the thermal insulation columns to increase the contact area between the thermal insulation columns and the air, thereby increasing the heat dissipation area and improving the heat dissipation capacity.

[0081] In addition, if Figure 6 As shown, the hot melt welding device also includes a housing 5000, combined with Figure 5 As shown, the outer shell 5000 is used to protect the positioning seat 40, the heat sealing head 10, the heating plate 80, the lifting mechanism 90, etc., thereby extending the service life of the equipment.

[0082] The technical features of the above embodiments may be combined arbitrarily. To make the description concise, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0083] The above embodiments only express several implementation methods of the present application, and the descriptions thereof are relatively specific and detailed, but they cannot be understood as limiting the scope of the application. It should be pointed out that, for a person of ordinary skill in the art, several variations and improvements can be made without departing from the concept of the present application, and these all belong to the protection scope of the present application. Therefore, the protection scope of the present application shall be subject to the attached claims.

Claims

1. A hot pressing welding assembly, characterized in that: It comprises a heat sealing head (10), a position switching mechanism (20), a film sealing carrier (30) and a positioning seat (40); The lower end of the heat sealing head (10) has a heat pressing surface (11) for contacting the sealing film (100), and an air path is provided inside the heat sealing head (10), and a negative pressure adsorption port (111) is formed on the heat pressing surface (11); The position switching mechanism (20) is arranged below the heat sealing head (10); the film sealing carrier (30) and the positioning seat (40) are both arranged on the position switching mechanism (20); the position switching mechanism (20) is used to drive the positioning seat (40) to switch between entering a heat pressing position and moving out of the heat pressing position; the heat pressing position is located directly below the heat sealing head (10); when the positioning seat (40) moves out of the heat pressing position, the film sealing carrier (30) enters the heat pressing position; The film sealing carrier (30) is provided with a film carrying surface (31) for stacking the sealing films (100), and the positioning seat (40) has a fixing position (41) for positioning the product (200).

2. The hot pressure welding assembly according to claim 1, characterized in that: An elastic member (50) is provided between the film sealing carrier (30) and the position switching mechanism (20), and the elastic member (50) is used to provide a vertical elastic force for the film sealing carrier (30).

3. The hot pressure welding assembly according to claim 1, characterized in that: The position switching mechanism (20) comprises a guide rail (22) and a carrier (21) slidably arranged on the guide rail (22); the film sealing carrier (30) and the positioning seat (40) are arranged on the carrier (21) at intervals in the length direction of the guide rail (22); the carrier (21) can slide on the guide rail (22) along the length direction of the guide rail (22); and the hot pressing position is located on the moving path of the carrier (21).

4. The hot pressure welding assembly according to claim 3, characterized in that: The position switching mechanism (20) further comprises a driving member (23), a driving end of which is connected to the carrier (21), and the driving member (23) is used to drive the carrier (21) to slide along the length direction of the guide rail (22).

5. The hot pressure welding assembly according to claim 1, characterized in that: The hot pressing surface (11) is also provided with a first positioning groove (112), and the film-carrying surface (31) is provided with a first positioning protrusion (311) adapted to the first positioning groove (112).

6. The hot pressure welding assembly according to claim 1, characterized in that: The hot pressing surface (11) is also provided with a second positioning protrusion (113), and the film-carrying surface (31) is provided with a second positioning groove (312) adapted to the second positioning protrusion (113).

7. The hot pressure welding assembly according to claim 1, characterized in that: An alignment protrusion (60) is provided on one of the positioning seat (40) and the heat sealing head (10), and an alignment groove (70) corresponding to the alignment protrusion (60) is provided on the other of the positioning seat (40) and the heat sealing head (10).

8. The hot pressure welding assembly according to any one of claims 1 to 7, characterized in that: The heat sealing head (10) is provided with a plurality of heat pressing surfaces (11), the positioning seat (40) is provided with a plurality of fixing positions (41), and the film sealing carrier (30) is provided with a plurality of film carrying surfaces (31); When the film sealing carrier (30) enters the hot pressing position, the multiple film carrying surfaces (31) and the multiple hot pressing surfaces (11) are respectively arranged in a one-to-one correspondence in the vertical direction; when the positioning seat (40) enters the hot pressing position, the multiple fixing positions (41) and the multiple hot pressing surfaces (11) are respectively arranged in a one-to-one correspondence in the vertical direction.

9. A hot pressing welding device, characterized in that: It comprises a lifting mechanism (90), a heating plate and a hot pressing welding assembly as described in any one of claims 1 to 8, wherein the heat sealing head (10) is arranged on the lifting mechanism (90) through the heating plate, and the lifting mechanism (90) is used to drive the heating plate and the heat sealing head (10) to move up and down together to approach or move away from the hot pressing position.

10. The hot pressure welding device according to claim 9, characterized in that: The hot pressing welding device also includes a base (1000), a lifting plate (2000) and a guide assembly (3000), wherein the guide assembly (3000) includes a vertical guide member (3100) arranged on the base (1000) and a sliding member (3200) connected to the lifting plate (2000) and slidably arranged on the vertical guide member (3100), the heating plate and the heat sealing head (10) are arranged in sequence from top to bottom at the lower end of the lifting plate (2000), the position switching mechanism (20) is arranged on the base (1000) below the heat sealing head (10), and the lifting mechanism (90) is connected to the lifting plate (2000) and is used to drive the lifting plate (2000) to move up and down along the vertical guide member (3100).

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