A welding apparatus for a refrigerator door seal

Abstract

The utility model discloses a kind of welding equipment of refrigerator door seal, belong to welding equipment technical field, including rack, die sliding plate is slidably connected on rack, die cylinder is fixedly connected on rack, and the output end of die sliding plate is fixedly connected with die cylinder, rack and die sliding plate are all fixedly connected with fixed mould, and two fixed moulds are symmetrically distributed, rack and die sliding plate are all slidably connected with slide, two slides are all fixedly connected with mobile mould, and two mobile moulds are respectively corresponding with two fixed moulds;In the utility model, after refrigerator door seal welding is completed, each component starts to reset, staff takes out refrigerator door seal, and positioning cleaning mechanism enters between two fixed moulds again, positioning while subsequent rubber strip, the welding slag produced by welding inside two fixed moulds and two mobile moulds of last time is cleaned, avoid welding slag to affect subsequent product welding, guarantee welding quality.

Description

Technical Field

[0001] This utility model relates to the field of welding equipment technology, and more specifically, to a welding device for refrigerator door seals. Background Technology

[0002] A refrigerator door seal is a device used to secure the refrigerator door. Made of various materials, it wraps around the door frame to form an effective airtight seal, preventing outside air from entering the refrigerator, thus keeping the refrigerator at a low temperature and reducing energy consumption.

[0003] Currently, refrigerator door seals are formed by welding four rubber strips with magnetic strips together to form a rectangle. The four corners of the rectangle are the welding points. The formed refrigerator door seal can match the refrigerator door. Therefore, refrigerator door seals generally need to be welded and assembled on welding equipment during production. However, most existing welding equipment produces welding slag when welding refrigerator door seals. Welding slag is inconvenient to clean inside the equipment, and long-term accumulation can easily affect the welding quality of subsequent products. Moreover, it is difficult to locate and detect the presence of magnetic strips inside the refrigerator door seal during the welding process. Therefore, this utility model proposes a welding equipment for refrigerator door seals. Utility Model Content

[0004] 1. Technical problems to be solved

[0005] In view of the problems existing in the prior art, the purpose of this utility model is to provide a welding equipment for refrigerator door seals, which aims to solve the problems that existing welding equipment produces welding slag when welding refrigerator door seals. The welding slag is inconvenient to clean inside the equipment, and long-term accumulation can easily affect the welding quality of subsequent products. Moreover, it is difficult to locate and detect the magnetic strip inside the refrigerator door seal during the welding process.

[0006] 2. Technical Solution

[0007] To solve the above problems, the present invention adopts the following technical solution:

[0008] A welding device for refrigerator door seals includes a frame, a mold-closing slide plate slidably connected to the frame, a mold-closing cylinder fixedly connected to the frame, and one end of the mold-closing slide plate fixedly connected to the output end of the mold-closing cylinder. Fixed molds are fixedly connected to both the frame and the mold-closing slide plate, with the two fixed molds symmetrically distributed. Sliding blocks are slidably connected to both the frame and the mold-closing slide plate, and movable molds are fixedly connected to each of the two sliding blocks, with each movable mold corresponding to one of the two fixed molds. Magnetic strip sensor modules are fixedly connected inside each of the two movable molds. Pushing cylinders are fixedly connected to both the frame and the mold-closing slide plate, with one end of each of the two sliding blocks connected to one of the two pushing cylinders. The cylinder's output end is fixedly connected. A positioning and cleaning mechanism is provided on the frame, corresponding to two fixed molds and two movable molds, to achieve positioning of the seal end and cleaning of welding slag inside the equipment. Each of the two movable molds is provided with a multi-directional positioning mechanism, corresponding to the two fixed molds respectively, for positioning the seal. A heating mechanism is provided inside the frame, corresponding to the two fixed molds and two movable molds, for heating the end of the seal. A smoke extraction mechanism is provided on the frame, corresponding to the two fixed molds and two movable molds, for removing the smoke generated by heating the seal.

[0009] As a preferred embodiment of this utility model, the positioning and cleaning mechanism includes a telescopic cylinder, a mounting frame, two cleaning brushes, a double-headed cylinder, and two positioning strips. The telescopic cylinder is fixedly connected to the frame, and the mounting frame is fixedly connected to the output end of the telescopic cylinder. Both cleaning brushes are fixedly connected to the mounting frame and are symmetrically distributed, corresponding to the two fixed molds respectively. The double-headed cylinder is fixedly connected inside the mounting frame, and the two positioning strips are fixedly connected to the two output ends of the double-headed cylinder and are symmetrically distributed, corresponding to the two fixed molds respectively.

[0010] As a preferred embodiment of this utility model, each of the multi-directional positioning mechanisms includes a positioning cylinder, a sliding rod module, a push block, a limiting cylinder, and a pressure head assembly. The positioning cylinder is fixedly connected to a movable mold, the sliding rod module is fixedly connected to the output end of the positioning cylinder, and the sliding rod module extends movably into the movable mold, the push block is fixedly connected to one end of the sliding rod module, and the push block is located in a movable mold corresponding to a fixed mold, the limiting cylinder is fixedly connected to a sliding base, and the pressure head assembly is fixedly connected to the output end of the limiting cylinder, and the pressure head assembly corresponds to a movable mold and a fixed mold.

[0011] As a preferred embodiment of this utility model, the heating mechanism includes a rodless cylinder and a quartz heating plate. The rodless cylinder is fixedly connected to the frame, and the quartz heating plate is disposed on the rodless cylinder, and the quartz heating plate corresponds to two fixed molds and two movable molds.

[0012] As a preferred embodiment of this utility model, the smoke extraction mechanism includes a collection hood, a smoke sensor, and a smoke extraction pump. The collection hood is fixedly connected to the frame, the smoke sensor is fixedly connected to the collection hood, and the smoke extraction pump is fixedly connected inside the frame, with the smoke extraction pump corresponding to the collection hood.

[0013] As a preferred embodiment of this utility model, a grating module is fixedly connected to the frame, and the grating module corresponds to two fixed modules.

[0014] As a preferred embodiment of this utility model, a controller is fixedly connected to the frame.

[0015] 3. Beneficial effects

[0016] Compared with existing technologies, the advantages of this utility model are:

[0017] (1) In this solution, when welding the refrigerator door seal, the positioning cleaning mechanism and the multi-directional positioning mechanism work together to achieve multi-directional positioning of the rubber strip, which can ensure the accuracy of welding. After positioning, the two moving molds work together with the two fixed molds to clamp and fix the rubber strip, so that the rubber strip remains stable and is convenient for the heating mechanism to heat. At the same time, the multi-directional positioning mechanism presses the rubber strip, and together with the magnetic strip sensor module, it can accurately detect the magnetic strip in the rubber strip and determine whether the magnetic strip has antimagnetic, weak magnetic, or no magnetic phenomena, thereby reducing the product defect rate.

[0018] (2) In this scheme, after the two moving molds and two fixed molds clamp and fix the rubber strip, the positioning and cleaning mechanism exits from between the two fixed molds, the heating mechanism enters between the two fixed molds to heat the welding end of the rubber strip, and the fume extraction mechanism extracts the fumes generated during welding to protect the working environment.

[0019] (3) In this scheme, after the rubber strip is heated, the heating mechanism exits between the two fixed molds. The mold closing cylinder pushes the mold closing slide to move one fixed mold and one moving mold. The two fixed molds and two moving molds close together, melting the heated ends of the rubber strip together, thus completing the welding of the refrigerator door seal. After the refrigerator door seal is welded, the various components begin to reset. The staff removes the refrigerator door seal, and the positioning and cleaning mechanism re-enters between the two fixed molds. While positioning the subsequent rubber strip, it cleans the welding slag generated by the previous welding of the two fixed molds and two moving molds to avoid the welding slag affecting the welding of subsequent products and to ensure the welding quality. Attached Figure Description

[0020] Figure 1 This is the front view of the present invention;

[0021] Figure 2This is a perspective view of the present utility model;

[0022] Figure 3 This is a structural diagram of some of the mechanisms in this utility model;

[0023] Figure 4 This is a structural diagram of the positioning cleaning mechanism 9 and the multi-directional positioning mechanism 10 in this utility model;

[0024] Figure 5 This is a structural diagram of the multi-directional positioning mechanism 10 in this utility model;

[0025] Figure 6 In this utility model Figure 5 Exploded view;

[0026] Figure 7 This is a structural diagram of the positioning and cleaning mechanism 9 in this utility model;

[0027] Figure 8 This is a structural diagram of the heating mechanism 11 in this utility model.

[0028] Explanation of the labels in the diagram:

[0029] 1. Frame; 2. Mold closing slide plate; 3. Mold closing cylinder; 4. Fixed mold; 5. Slide block; 6. Moving mold; 7. Mold pushing cylinder; 8. Magnetic strip sensor module; 9. Positioning and cleaning mechanism; 91. Telescopic cylinder; 92. Mounting frame; 93. Cleaning brush; 94. Double-headed cylinder; 95. Positioning strip; 10. Multi-directional positioning mechanism; 101. Positioning cylinder; 102. Slide bar module; 103. Push block; 104. Limit cylinder; 105. Press head assembly; 11. Heating mechanism; 111. Rodless cylinder; 112. Quartz heating plate; 12. Smoke extraction mechanism; 121. Collection hood; 122. Smoke sensor; 123. Smoke pump; 13. Grating module; 14. Controller. Detailed Implementation

[0030] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present utility model, not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the scope of protection of the present utility model.

[0031] In the description of this utility model, it should be noted that the terms "upper," "lower," "inner," "outer," "top / bottom," etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0032] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installed," "equipped with," "sleeved / connected," "connected," etc., should be interpreted broadly. For example, "connection" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be a connection within two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0033] Example:

[0034] Please see Figure 1-8 A welding device for refrigerator door seals includes a frame 1, a mold closing slide plate 2 slidably connected to the frame 1, a mold closing cylinder 3 fixedly connected to the frame 1, and one side of the mold closing slide plate 2 fixedly connected to the output end of the mold closing cylinder 3. Fixed molds 4 are fixedly connected to both the frame 1 and the mold closing slide plate 2, and the two fixed molds 4 are symmetrically distributed. Slide seats 5 are slidably connected to both the frame 1 and the mold closing slide plate 2, and movable molds 6 are fixedly connected to both slide seats 5, with each movable mold 6 corresponding to one of the two fixed molds 4. Magnetic strip sensor modules 8 are fixedly connected inside each of the two movable molds 6. Pushing cylinders 7 are fixedly connected to both the frame 1 and the mold closing slide plate 2, with one side of each slide seat 5 fixedly connected to one of the two pushing cylinders 7. The output end is fixedly connected. A positioning and cleaning mechanism 9 is provided on the frame 1, and the positioning and cleaning mechanism 9 corresponds to two fixed molds 4 and two movable molds 6 to realize the positioning of the end of the seal and the cleaning of welding slag inside the equipment. Each of the two movable molds 6 is provided with a multi-directional positioning mechanism 10, and the two multi-directional positioning mechanisms 10 correspond to the two fixed molds 4 respectively, for positioning the seal. A heating mechanism 11 is provided inside the frame 1, and the heating mechanism 11 corresponds to the two fixed molds 4 and two movable molds 6, for heating the end of the seal. A smoke extraction mechanism 12 is provided on the frame 1, and the smoke extraction mechanism 12 corresponds to the two fixed molds 4 and two movable molds 6, for removing the smoke generated by heating the seal.

[0035] In this embodiment, during the welding of the refrigerator door seal, a rubber strip is placed into two fixed molds 4. The positioning and cleaning mechanism 9 enters between the two fixed molds 4 to position one end of the rubber strip within each mold, ensuring the insertion depth of the rubber strip. Simultaneously, two multi-directional positioning mechanisms 10 on the two movable molds 6 respectively restrict the rubber strip within the two fixed molds 4, stabilizing the rubber strip within the two fixed molds 4. Then, two push-mold cylinders 7 push two slide blocks 5 to slide on the frame 1 and the mold closing slide plate 2 respectively. The two slide blocks 5 respectively drive the two movable molds 6 to move, clamping the rubber strip within the two fixed molds 4. The two multi-directional positioning mechanisms 10 press and limit the clamped rubber strip, facilitating the detection of the magnetic strip within the rubber strip by the two magnetic strip sensor modules 8. Then, the positioning and cleaning mechanism 9... Two fixed molds 4 are moved out directly, and the heating mechanism 11 enters between the two fixed molds 4 to heat both ends of the rubber strip. At the same time, the smoke extraction mechanism 12 extracts the smoke generated by heating. After heating is completed, the heating mechanism 11 is reset, and the mold closing cylinder 3 pushes the mold closing slide 2 to move on the frame 1, so that the two fixed molds 4 and the two moving molds 6 are closed. The heated ends of the rubber strips in the two fixed molds 4 come into contact and fuse, thereby realizing the welding of the refrigerator door seal. After welding is completed, the two push mold cylinders 7 pull the two slides 5 to reset, so that the two fixed molds 4 are opened and the workers take out the product. Then the mold closing cylinder 3 pulls the mold closing slide 2 to reset, so that the two fixed molds 4 are separated. The positioning and cleaning mechanism 9 extends into the two fixed molds 4 again to position the subsequent rubber strips and clean the welding slag inside the two fixed molds 4 and the two moving molds 6.

[0036] Specifically, the positioning cleaning mechanism 9 includes a telescopic cylinder 91, a mounting frame 92, two cleaning brushes 93, a double-headed cylinder 94, and two positioning strips 95. The telescopic cylinder 91 is fixedly connected to the frame 1, the mounting frame 92 is fixedly connected to the output end of the telescopic cylinder 91, the two cleaning brushes 93 are both fixedly connected to the mounting frame 92, and the two cleaning brushes 93 are symmetrically distributed and correspond to the two fixed molds 4 respectively. The double-headed cylinder 94 is fixedly connected inside the mounting frame 92, and the two positioning strips 95 are fixedly connected to the two output ends of the double-headed cylinder 94 respectively, and the two positioning strips 95 are symmetrically distributed and correspond to the two fixed molds 4 respectively.

[0037] In this embodiment, when welding the refrigerator door seal, the telescopic cylinder 91 pushes the mounting frame 92 between the two fixed molds 4, so that the two positioning strips 95 correspond to the welding ends of the rubber strips in the two fixed molds 4. The double-headed cylinder 94 controls the two positioning strips 95 to unfold outward and contact the welding ends of the rubber strips in the two fixed molds 4, so that the welding ends of the rubber strips are positioned when they are placed in the two fixed molds 4, ensuring the flatness of the welding ends. In addition, each time the mounting frame 92 enters between the two fixed molds 4 to position the welding ends of the rubber strips, it will drive the two cleaning brushes 93 to move. The two cleaning brushes 93 will contact the two fixed molds 4 and the two moving molds 6 to clean the welding slag generated during the previous welding.

[0038] Specifically, each multi-directional positioning mechanism 10 includes a positioning cylinder 101, a sliding rod module 102, a push block 103, a limiting cylinder 104, and a pressing head assembly 105. The positioning cylinder 101 is fixedly connected to a movable mold 6. The sliding rod module 102 is fixedly connected to the output end of the positioning cylinder 101 and extends movably into the movable mold 6. The push block 103 is fixedly connected to one end of the sliding rod module 102 and is located in the movable mold 6 corresponding to a fixed mold 4. The limiting cylinder 104 is fixedly connected to a sliding base 5. The pressing head assembly 105 is fixedly connected to the output end of the limiting cylinder 104 and corresponds to a movable mold 6 and a fixed mold 4.

[0039] In this embodiment, when the two positioning bars 95 are positioning the rubber strip, the two positioning cylinders 101 respectively push the two sliding rod modules 102 to slide within the two moving molds 6, so that the two push blocks 103 contact the two fixed molds 4 to restrict the rubber strip and ensure the stability of the rubber strip during welding end positioning. When the two moving molds 6 approach the two fixed molds 4 to clamp the rubber strip, the two positioning cylinders 101 gradually control the two sliding rod modules 102 to retract as the two moving molds 6 move, so that the two push blocks 103 always contact the two fixed molds 4 to maintain the positioning state of the rubber strip and will not affect the clamping of the rubber strip by the two moving molds 6 and the two fixed molds 4. When the two moving molds 6 contact the two fixed molds 4 to clamp the rubber strip, the two pressure head assemblies 105 correspond to the rubber strips in the two fixed molds 4 respectively, and the two limit cylinders 104 respectively control the two pressure head assemblies 105 to press down. The two pressure head assemblies 105 further restrict the rubber strips in the two fixed molds 4 and ensure the stability of the rubber strip.

[0040] Specifically, the heating mechanism 11 includes a rodless cylinder 111 and a quartz heating plate 112. The rodless cylinder 111 is fixedly connected to the frame 1, and the quartz heating plate 112 is disposed on the rodless cylinder 111, and the quartz heating plate 112 corresponds to the two fixed molds 4 and the two movable molds 6.

[0041] In this embodiment, after the rubber strip is clamped and fixed between two fixed molds 4 and two movable molds 6, the telescopic cylinder 91 controls the mounting frame 92 to move and retract from between the two fixed molds 4 to reset, and the rodless cylinder 111 controls the quartz heating plate 112 to move upward and enter between the two fixed molds 4 to correspond to the welding end of the rubber strip, and the quartz heating plate 112 heats the welding end of the rubber strip.

[0042] Specifically, the smoke extraction mechanism 12 includes a collection hood 121, a smoke sensor 122, and a smoke extraction pump 123. The collection hood 121 is fixedly connected to the frame 1, the smoke sensor 122 is fixedly connected to the collection hood 121, and the smoke extraction pump 123 is fixedly connected inside the frame 1, with the smoke extraction pump 123 corresponding to the collection hood 121.

[0043] In this embodiment, the smoke pump 123 and the collection hood 121 are connected by a pipe. The type of pipe is selected according to the actual use. When the quartz heating plate 112 heats the rubber strip, the smoke sensor 122 detects the smoke generated by the heating. When the smoke is detected, the smoke pump 123 extracts the smoke through the collection hood 121 connected by the pipe, thereby reducing the impact of the smoke on the working environment.

[0044] Specifically, a grating module 13 is fixedly connected to the frame 1, and the grating module 13 corresponds to two fixed modules 4.

[0045] In this embodiment, the grating module 13 has a protective effect. Corresponding to the position of the worker, when an object passes through the two grating modules 13, the welding equipment will stop suddenly to prevent the worker from putting his hand into the equipment and causing injury during the welding process.

[0046] Specifically, a controller 14 is fixedly connected to the rack 1.

[0047] In this embodiment, the controller 14 is electrically connected to the electrical components on the entire welding equipment and is used to control the operation of the entire welding equipment. The controller 14 is common knowledge to those skilled in the art and will not be described in detail in this solution.

[0048] Working principle: During the welding of the refrigerator door seal, the telescopic cylinder 91 pushes the mounting frame 92 between the two fixed molds 4, so that the two positioning strips 95 correspond to the two fixed molds 4 respectively. The operator places two sets of rubber strips into the two fixed molds 4 respectively, with the welding ends of the two sets of rubber strips corresponding to the two positioning strips 95. The two positioning cylinders 101 push the two sliding rod modules 102 to slide within the two moving molds 6. The two sliding rod modules 102 drive the two push blocks 103 to contact the two fixed molds 4, restricting the two sets of rubber strips within the two fixed molds 4 respectively. At the same time, the double-headed cylinder 94 controls the two positioning strips 95 to unfold outward, positioning the welding ends of the two sets of rubber strips. Then, the two push mold cylinders 7 push the two... Each slide block 5 slides on the frame 1 and the mold clamping slide plate 2 respectively. The two slide blocks 5 drive the two movable molds 6 to move. During the movement of the two movable molds 6, the two positioning cylinders 101 gradually control the two slide rod modules 102 to retract, so that the two push blocks 103 are always in contact with the two fixed molds 4 to maintain the positioning of the two sets of rubber strips. After the two movable molds 6 have moved, they clamp the two sets of rubber strips in the two fixed molds 4. The two pressure head assemblies 105 correspond to the two sets of rubber strips as the two movable molds 6 move. The two limit cylinders 104 control the two pressure head assemblies 105 to move down to press and fix the two sets of rubber strips. While limiting the upper and lower positions of the two sets of rubber strips, the two magnetic strip sensor modules 8 stably control the two sets of rubber strips. The magnetic strips inside are tested. After the two moving molds 6 and two fixed molds 4 clamp and fix the two sets of rubber strips, the double-headed cylinder 94 controls the two positioning bars 95 to move closer and reset. The telescopic cylinder 91 drives the mounting frame 92 to move out from between the two fixed molds 4 and reset. The rodless cylinder 111 drives the quartz heating plate 112 to rise, so that the quartz heating plate 112 contacts the welded ends of the two sets of rubber strips for heating. The smoke sensor 122 detects the smoke generated by heating. The smoke extraction pump 123 is connected to the collection hood 121 through the pipeline. The collection hood 121 is used to extract smoke to protect the working environment. After the rubber strips are heated, the rodless cylinder 111 controls the quartz heating plate 112 to move down and reset. The mold closing cylinder 3 pushes the mold closing slide 2 to move, so that the two fixed molds 4 and the two The movable mold 6 closes, melting and welding the heated ends of the two clamped rubber strips to form the refrigerator door seal. After welding, the two push-mold cylinders 7 pull the two slide blocks 5, opening the two movable molds 6 away from the two fixed molds 4, making it easier for workers to remove the product. After the product is removed, the mold closing cylinder 3 pulls the mold closing slide plate 2 to reset, opening the space between the two fixed molds 4. The telescopic cylinder 91 pushes the mounting frame 92 into the space between the two fixed molds 4, aligning the two positioning strips 95 with the two fixed molds 4 to facilitate the subsequent positioning of the rubber strips. The two cleaning brushes 93, along with the movement of the mounting frame 92, come into contact with the two fixed molds 4 and the two movable molds 6 to scrape and clean the welding slag generated in the previous welding, ensuring the welding quality of the subsequent refrigerator door seal.

[0049] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model based on the technical solution and its improved concept should be covered within the protection scope of the present utility model.

Claims

1. A welding device for refrigerator door seals, comprising a frame (1), characterized in that: A mold clamping slide plate (2) is slidably connected to the frame (1). A mold clamping cylinder (3) is fixedly connected to the frame (1), and one side of the mold clamping slide plate (2) is fixedly connected to the output end of the mold clamping cylinder (3). Fixed molds (4) are fixedly connected to both the frame (1) and the mold clamping slide plate (2), and the two fixed molds (4) are symmetrically distributed. Slide seats (5) are slidably connected to both the frame (1) and the mold clamping slide plate (2). Moving molds (6) are fixedly connected to both slide seats (5), and the two moving molds (6) correspond to the two fixed molds (4) respectively. Magnetic strip sensor modules (8) are fixedly connected inside both moving molds (6). Pushing cylinders (7) are fixedly connected to both the frame (1) and the mold clamping slide plate (2), and one side of the two slide seats (5) is fixedly connected to the output end of the two pushing cylinders (7) respectively. The end is fixedly connected. The frame (1) is provided with a positioning and cleaning mechanism (9), and the positioning and cleaning mechanism (9) corresponds to two fixed molds (4) and two movable molds (6) to realize the positioning of the end of the seal and the cleaning of welding slag inside the equipment. The two movable molds (6) are each provided with a multi-directional positioning mechanism (10), and the two multi-directional positioning mechanisms (10) correspond to the two fixed molds (4) respectively, for positioning the placement of the seal. The frame (1) is provided with a heating mechanism (11), and the heating mechanism (11) corresponds to the two fixed molds (4) and two movable molds (6), for heating the end of the seal. The frame (1) is provided with a smoke extraction mechanism (12), and the smoke extraction mechanism (12) corresponds to the two fixed molds (4) and two movable molds (6), for removing the smoke generated by heating the seal.

2. The welding equipment for a refrigerator door seal according to claim 1, characterized in that: The positioning cleaning mechanism (9) includes a telescopic cylinder (91), a mounting frame (92), two cleaning brushes (93), a double-headed cylinder (94), and two positioning strips (95). The telescopic cylinder (91) is fixedly connected to the frame (1). The mounting frame (92) is fixedly connected to the output end of the telescopic cylinder (91). The two cleaning brushes (93) are both fixedly connected to the mounting frame (92), and the two cleaning brushes (93) are symmetrically distributed and correspond to the two fixed molds (4). The double-headed cylinder (94) is fixedly connected inside the mounting frame (92). The two positioning strips (95) are fixedly connected to the two output ends of the double-headed cylinder (94), and the two positioning strips (95) are symmetrically distributed and correspond to the two fixed molds (4).

3. The welding equipment for a refrigerator door seal according to claim 2, characterized in that: Each of the multi-directional positioning mechanisms (10) includes a positioning cylinder (101), a sliding rod module (102), a push block (103), a limiting cylinder (104), and a pressure head assembly (105). The positioning cylinder (101) is fixedly connected to a movable mold (6). The sliding rod module (102) is fixedly connected to the output end of the positioning cylinder (101) and the sliding rod module (102) extends into the movable mold (6). The push block (103) is fixedly connected to one end of the sliding rod module (102) and the push block (103) is located in the movable mold (6) and corresponds to a fixed mold (4). The limiting cylinder (104) is fixedly connected to a sliding block (5). The pressure head assembly (105) is fixedly connected to the output end of the limiting cylinder (104) and corresponds to a movable mold (6) and a fixed mold (4).

4. The welding equipment for a refrigerator door seal according to claim 3, characterized in that: The heating mechanism (11) includes a rodless cylinder (111) and a quartz heating plate (112). The rodless cylinder (111) is fixedly connected to the frame (1). The quartz heating plate (112) is disposed on the rodless cylinder (111) and corresponds to two fixed molds (4) and two movable molds (6).

5. The welding equipment for a refrigerator door seal according to claim 4, characterized in that: The smoke extraction mechanism (12) includes a collection hood (121), a smoke sensor (122), and a smoke extraction pump (123). The collection hood (121) is fixedly connected to the frame (1), the smoke sensor (122) is fixedly connected to the collection hood (121), and the smoke extraction pump (123) is fixedly connected inside the frame (1), and the smoke extraction pump (123) corresponds to the collection hood (121).

6. The welding equipment for a refrigerator door seal according to claim 5, characterized in that: A grating module (13) is fixedly connected to the frame (1), and the grating module (13) corresponds to two fixed modules (4).

7. The welding equipment for a refrigerator door seal according to claim 6, characterized in that: A controller (14) is fixedly connected to the frame (1).

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