Novel automatic door seal welding die

Abstract

The utility model discloses a novel automatic door seal welding die and relates to the technical field of door seal welding die equipment. The welding die set is detachably arranged in the die module set and comprises a left welding die and a right welding die which are symmetrically arranged, the heating device is arranged between the left welding die and the right welding die, and a left front die steel module and a left rear die steel module are in butt joint to form a die steel module used for containing a door seal. A plurality of positioning pin holes are formed in the left front mold steel module and the left rear mold steel module, a plurality of pins are arranged on the right welding mold and matched with the positioning pin holes, a welding cutting knife edge is arranged on the door sealing strip positioning groove in one side of the left front mold steel module, and a welding mold knife edge is arranged on the door sealing strip positioning groove in the opposite side of the left front mold steel module. The positioning pins are arranged on the front module and the rear module to play a role in linking and positioning, the mold closing precision is higher, and the cutting knife edge is arranged in the mold groove, so that melt at a welding part can be cut off during mold closing, and the flatness of a welding surface is ensured.

Description

Technical Field

[0001] The utility model relates to a novel automatic door seal strip welding mould, and relates to the technical field of door seal strip welding mould equipment. Background Art

[0002] Door seals are mainly used in refrigerators, glass cabinets, display cabinets, disinfection cabinets, fresh air cabinets and other door seal sealing fields. Door seals need to be welded after cutting before they can be used as finished products.

[0003] The patent technology with publication number CN109703039A discloses a fully automatic door seal corner welding machine. Although this solution has the characteristics of being applicable to four-corner welding, high efficiency, good quality, and applicable to welding door seals of different specifications and sizes, in this solution, the fixing and removal methods of the door seals are relatively simple, which is prone to inaccurate docking, the door seals adhering to the mold, and the door seals are directly removed after welding, and the flatness of the welding surface is insufficient, which affects the aesthetics and use effect. Utility Model Content

[0004] The purpose of the utility model is to provide a new automatic door seal welding mold to address the defects or shortcomings in the prior art. Positioning pins are set on the front and rear modules to play a role in connection and positioning, and the mold closing accuracy is higher. A cutting edge is set in the mold groove, which can cut off the molten material in the welding part when closing the mold, thereby ensuring the flatness of the welding surface.

[0005] To achieve the above-mentioned purpose, the utility model adopts the following technical scheme: it comprises a mold module group 1, a welding mold group 2, and a heating device 3. The mold module group 1 is arranged on a workbench and is a symmetrical left and right module group structure. The welding mold group 2 can be detachably arranged in the mold module group 1. The welding mold group 2 comprises a symmetrically arranged left welding mold and a right welding mold. The left and right welding molds have the same structure. The heating device 3 is arranged between the left and right welding molds. The left welding mold comprises a left front mold steel module 2-1 and a left rear mold steel module 2-2. The left front mold steel module 2-1 and the left rear mold steel module The blocks 2-2 are butt-jointed to form a steel module for placing a door seal. A plurality of positioning pin holes 2-7 are arranged on the left front steel module 2-1 and the left rear steel module 2-2. A plurality of pins 7 are arranged on the right welding mold, and the pins 7 match the positioning pin holes 2-7. A groove is arranged on the butt joint surface of the left front steel module 2-1 and the left rear steel module 2-2 to form a door seal positioning groove 2-5. A welding cutting edge 2-5-1 is arranged on the door seal positioning groove 2-5 on one side of the left front steel module 2-1, and a welding mold edge 2-5-2 is arranged on the door seal positioning groove 2-5 on the opposite side.

[0006] Furthermore, a left front positioning aluminum auxiliary module 2-3 is provided on one side of the left front mold steel module 2-1, and a left rear positioning aluminum auxiliary module 2-4 is provided on one side of the left rear mold steel module 2-2. The left front positioning aluminum auxiliary module 2-3 is parallel to and abuts against the left rear positioning aluminum auxiliary module 2-4.

[0007] Furthermore, a door seal air inlet channel 2-2-1 is provided on the left rear mold steel module 2-2, a door seal air inlet hole 2-2-2 is provided on the top of the door seal air inlet channel 2-2-1, and the door seal air inlet hole 2-2-2 is connected to the door seal positioning groove 2-5.

[0008] Furthermore, a vacuum adsorption air hole channel 2-6 is also provided on the left rear mold steel module 2-2, and the vacuum adsorption air hole channel 2-6 extends to the bottom of the door seal positioning groove 2-5.

[0009] Furthermore, the vacuum adsorption air hole channel 2-6 is provided with a plurality of vacuum adsorption holes 2-6-1 corresponding to the door seal positioning groove 2-5.

[0010] Furthermore, at least two groups of door seal strip positioning grooves 2-5 are provided.

[0011] Furthermore, a left-right stroke cylinder 4 is provided on one side of the mold module group 1, and the piston ends of the left-right stroke cylinder 4 are connected to the right welding mold.

[0012] Furthermore, a front and rear stroke cylinder 5 is provided on one side of the heating device 3, and ejector cylinders 6 are also provided on both sides of the heating device. The ejector cylinder 6 is located on the inner side of the front and rear stroke cylinder 5, and the piston end of the front and rear stroke cylinder 5 is connected to the right welding mold. The ejectors of the two groups of ejector cylinders 6 are respectively connected to the left welding mold and the right welding mold.

[0013] The working principle of the utility model is as follows: the equipment is debugged before welding, and the welding mold group 2 is installed in the mold module group 1, wherein one side of the right welding mold group is connected to the left and right stroke cylinders 4, and one side is connected to the front and rear stroke cylinders 5 and the ejector atmosphere 6. The operation of the equipment is controlled by the PLC controller 8 and the start button 9 on the workbench, and the mold closing stroke is mainly debugged. When closing the mold, the positioning pin 7 is connected with the positioning pin hole 2-7, which can prevent the jitter displacement of the mold when closing the mold, and accurately position it to ensure the welding effect. After the debugging is completed, the door seal is inserted into the left and right welding molds, and the heating device is started. The door seal is heated and welded by setting 3. After the heating is completed, the heating device 3 returns to its original position, and the left and right stroke cylinders 4 are started to drive the right welding mold to weld the door seal. At the same time, the vacuum pump is started to evacuate the air, and the air is extracted through the vacuum adsorption pore channel 2-6. The vacuum adsorption hole 2-6-1 adsorbs the door seal to ensure that the door seal is firmly adsorbed and does not move when the mold is closed. At the same time, the welding cutting edge 2-5-1 and the mold cutting edge 2-5-2 on the left and right welding molds cut the excess molten material on the surface of the door seal after welding when the mold is closed, so that the surface of the door seal is flat and smooth, ensuring the subsequent use effect.

[0014] After adopting the above technical scheme, the beneficial effects of the utility model are as follows: by arranging positioning pins on the front and rear modules to play a role in connection and positioning, the mold closing accuracy is higher, and a cutting edge is arranged in the mold groove, so that the molten material in the welding part can be cut off when the mold is closed, thereby ensuring the flatness of the welding surface. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] In order to more clearly illustrate the embodiments of the utility model 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 utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative labor.

[0016] Figure 1 It is a structural schematic diagram of the utility model;

[0017] Figure 2 It is a structural schematic diagram of the left welding mold in the utility model.

[0018] Explanation of the accompanying drawings: mold module group 1, welding mold group 2, heating device 3, left and right stroke cylinders 4, front and rear stroke cylinders 5, ejector cylinders 6, left front mold steel module 2-1, left rear mold steel module 2-2, left front positioning aluminum auxiliary module 2-3, left rear positioning aluminum auxiliary module 2-4, door seal positioning groove 2-5, vacuum adsorption air hole channel 2-6, positioning pin hole 2-7, door seal air inlet channel 2-2-1, door seal air inlet hole 2-2-2, welding cutting edge 2-5-1, welding mold edge 2-5-2. DETAILED DESCRIPTION

[0019] See also Figure 1-2 As shown, the technical solution adopted in this specific embodiment is: it comprises a mold module group 1, a welding mold group 2, and a heating device 3. The mold module group 1 is arranged on a workbench and is a symmetrical left and right module group structure. The welding mold group 2 is detachably arranged in the mold module group 1. The mold module group and the welding mold group are a matching assembly structure. The welding mold group is detachably arranged in the mold module group, and the mold module group and the welding mold group can slide relatively on the workbench, so as to realize the mold closing and demolding operations.

[0020] The welding mold group 2 includes a left welding mold and a right welding mold which are symmetrically arranged. The left and right welding molds have the same structure. A heating device 3 is arranged between the left and right welding molds. The heating device controls the stroke through a cylinder. During welding, the heating device is pushed to the middle of the left and right welding molds for heating. After the heating is completed, the heating device returns to its original position and the molds are closed for welding.

[0021] More specifically, the left welding mold includes a left front mold steel module 2-1 and a left rear mold steel module 2-2. The left front mold steel module 2-1 and the left rear mold steel module 2-2 are docked to form a mold steel module for placing the door seal. The mold steel module is the main positioning docking module during welding, and is divided into a front and rear mold steel structure. The rear mold steel can move left and right together with the mold module group. In addition to being able to move left and right, the front mold steel can also move forward and backward to achieve separation and material removal during demoulding;

[0022] A plurality of positioning pin holes 2-7 are provided on the left front mold steel module 2-1 and the left rear mold steel module 2-2, and a plurality of pins 7 are provided on the right welding mold. The pins 7 match the positioning pin holes 2-7. In most existing welding mold structures, there is generally a lack of positioning structures during debugging. If there is a slight deviation during assembly, the door seal strips will not be aligned during welding, which will affect the quality of the finished product. Therefore, in this embodiment, positioning pin holes are also used for positioning. Pins can be accurately matched with the positioning pin holes when the mold is closed before welding. The positioning is accurate, and the front and rear displacement of the mold can be prevented by inserting the pins into the positioning pin holes during mold closing, thereby ensuring the welding quality.

[0023] The mating surfaces of the left front mold steel module 2-1 and the left rear mold steel module 2-2 are provided with grooves to form a door seal positioning groove 2-5. The door seal positioning groove 2-5 on one side of the left front mold steel module 2-1 is provided with a welding cutting blade 2-5-1, and the door seal positioning groove 2-5 on the opposite side is provided with a welding mold blade 2-5-2. In the existing structure, the welding part is not effectively treated when the mold is closed, and the surface of the door seal is only manually treated simply after demolding. If the surface molten material is not treated in time, it will affect the use effect. Therefore, in this embodiment, a welding cutting blade and a welding mold blade are provided along the notch of the door seal positioning groove. The two blades are combined to form a complete cutting blade. When the welding molds on both sides are closed, the blades are cut oppositely to cut the molten material attached to the surface of the welding part, so that the surface of the door seal is flat and smooth, which is not only more beautiful, but also has a better sealing effect during use.

[0024] To be more specific, a left front positioning aluminum auxiliary module 2-3 is provided on one side of the left front mold steel module 2-1, and a left rear positioning aluminum auxiliary module 2-4 is provided on one side of the left rear mold steel module 2-2. The left front positioning aluminum auxiliary module 2-3 and the left rear positioning aluminum auxiliary module 2-4 are arranged in parallel and abutting relation. Two positioning aluminum auxiliary modules are arranged so that the mold steel module can be more accurately installed on the mold module group, and can also play a role of lateral support, effectively supporting the mold steel module when closing the mold, and supporting the door seal inserted into the mold steel module.

[0025] To be more specific, the left rear mold steel module 2-2 is provided with a door seal air inlet channel 2-2-1, the top of the door seal air inlet channel 2-2-1 is provided with a door seal air inlet hole 2-2-2, the door seal air inlet hole 2-2-2 is connected with the groove body of the door seal positioning groove 2-5, and the air inlet channel is provided on the mold steel module, and the door seal can be blown to cool down after welding is completed to prevent it from sticking to the mold.

[0026] To be more specific, the left rear mold steel module 2-2 is also provided with a vacuum adsorption air hole channel 2-6, which extends to the bottom of the door seal positioning groove 2-5. The vacuum adsorption air hole channel 2-6 is provided with a plurality of vacuum adsorption holes 2-6-1 corresponding to the door seal positioning groove 2-5. During welding, an external vacuum pump is started to perform vacuuming, so that the door seal is adsorbed on the mold to increase its tightness.

[0027] To be more specific, at least two groups of the door seal strip positioning grooves 2 - 5 are provided. In this embodiment, the structure of two groups of door seal strip positioning grooves is illustrated to achieve double-end welding.

[0028] To be more specific, a left-stroke cylinder 4 is provided on one side of the mold module group 1, and the piston end of the left-stroke cylinder 4 is connected to the right welding mold. In one embodiment, two left-stroke cylinders are provided to synchronously drive the mold laterally to achieve rapid mold closing. In this embodiment, the structure of a left-stroke cylinder is illustrated. Starting the left-stroke cylinders can drive the right welding mold and the left welding mold to close and separate.

[0029] To be more specific, a front and rear stroke cylinder 5 is provided on one side of the heating device 3, and ejector cylinders 6 are also provided on both sides of the heating device. The ejector cylinder 6 is located on the inner side of the front and rear stroke cylinder 5. The piston end of the front and rear stroke cylinder 5 is connected to the right welding mold. When the welding is completed and the mold is demolded, the front and rear stroke cylinders drive the right welding mold and the mold module group to move together. This process specifically involves the stroke cylinder driving the right front positioning aluminum auxiliary module and the front half of the movable module of the mold module group to move forward. The front halves of the left and right parts of the mold module group are in a connected state and can therefore move together. Under the action of the front and rear stroke cylinders, the front mold steel and the rear mold steel are synchronously driven to separate to achieve demolding. The ejectors of the two groups of ejector cylinders 6 are respectively connected to the left welding mold and the right welding mold. When the front and rear mold steels are separated, the ejector cylinders are ejected synchronously to eject the door seal from the door seal positioning groove, which can then be taken out by the operator.

[0030] The working principle of the utility model is as follows: the equipment is debugged before welding, and the welding mold group 2 is installed in the mold module group 1, wherein one side of the right welding mold group is connected to the left and right stroke cylinders 4, and one side is connected to the front and rear stroke cylinders 5 and the ejector atmosphere 6. The operation of the equipment is controlled by the PLC controller 8 and the start button 9 on the workbench, and the mold closing stroke is mainly debugged. When closing the mold, the positioning pin 7 is connected with the positioning pin hole 2-7, which can prevent the jitter displacement of the mold when closing the mold, and accurately position it to ensure the welding effect. After the debugging is completed, the door seal is inserted into the left and right welding molds, and the heating device is started. The door seal is heated and welded by setting 3. After the heating is completed, the heating device 3 returns to its original position, and the left and right stroke cylinders 4 are started to drive the right welding mold to weld the door seal. At the same time, the vacuum pump is started to evacuate the air, and the air is extracted through the vacuum adsorption pore channel 2-6. The vacuum adsorption hole 2-6-1 adsorbs the door seal to ensure that the door seal is firmly adsorbed and does not move when the mold is closed. At the same time, the welding cutting edge 2-5-1 and the mold cutting edge 2-5-2 on the left and right welding molds cut the excess molten material on the surface of the door seal after welding when the mold is closed, so that the surface of the door seal is flat and smooth, ensuring the subsequent use effect.

[0031] The above description is only used to illustrate the technical solution of the utility model rather than to limit it. Other modifications or equivalent substitutions made to the technical solution of the utility model by ordinary technicians in this field should be included in the scope of the claims of the utility model as long as they do not depart from the spirit and scope of the technical solution of the utility model.

Claims

1. A new type of automatic door seal welding mold, characterized by: It comprises a mold module group (1), a welding mold group (2), and a heating device (3). The mold module group (1) is arranged on a workbench and is a symmetrical left and right module group structure. The welding mold group (2) is detachably arranged in the mold module group (1). The welding mold group (2) comprises a symmetrically arranged left welding mold and a right welding mold. The left and right welding molds have the same structure. The heating device (3) is arranged between the left and right welding molds. The left welding mold comprises a left front mold steel module (2-1) and a left rear mold steel module (2-2). The left front mold steel module (2-1) and the left rear mold steel module (2-2) are butt-jointed to form a door seal. The invention relates to a mold steel module for a door seal strip, a plurality of positioning pin holes (2-7) are arranged on the left front mold steel module (2-1) and the left rear mold steel module (2-2), a plurality of pins (7) are arranged on the right welding mold, and the pins (7) match the positioning pin holes (2-7), a groove is arranged on the butt joint surface of the left front mold steel module (2-1) and the left rear mold steel module (2-2) to form a door seal strip positioning groove (2-5), a welding cutting edge (2-5-1) is arranged on the door seal strip positioning groove (2-5) on one side of the left front mold steel module (2-1), and a welding mold knife edge (2-5-2) is arranged on the door seal strip positioning groove (2-5) on the opposite side.

2. According to claim 1, a new type of automatic door seal welding mold is characterized by: A left front positioning aluminum auxiliary module (2-3) is arranged on one side of the left front mold steel module (2-1), and a left rear positioning aluminum auxiliary module (2-4) is arranged on one side of the left rear mold steel module (2-2). The left front positioning aluminum auxiliary module (2-3) and the left rear positioning aluminum auxiliary module (2-4) are arranged in parallel and abutting relation.

3. The new automatic door seal welding mold according to claim 1 is characterized by: The left rear mold steel module (2-2) is provided with a door seal air inlet channel (2-2-1), the top of the door seal air inlet channel (2-2-1) is provided with a door seal air inlet hole (2-2-2), and the door seal air inlet hole (2-2-2) is connected to the groove body of the door seal positioning groove (2-5).

4. The new automatic door seal welding mold according to claim 1 is characterized by: The left rear mold steel module (2-2) is also provided with a vacuum adsorption air hole channel (2-6), and the vacuum adsorption air hole channel (2-6) extends to the bottom of the door seal strip positioning groove (2-5).

5. The new automatic door seal welding mold according to claim 4 is characterized by: The vacuum adsorption air hole channel (2-6) is provided with a plurality of vacuum adsorption holes (2-6-1) at locations corresponding to the door seal strip positioning grooves (2-5).

6. The new automatic door seal welding mold according to claim 1 is characterized by: At least two groups of door seal strip positioning grooves (2-5) are provided.

7. The new automatic door seal welding mold according to claim 1 is characterized by: A left and right stroke cylinder (4) is arranged on one side of the mold module group (1), and the piston ends of the left and right stroke cylinder (4) are connected to the right welding mold.

8. The new automatic door seal welding mold according to claim 1 is characterized by: A front and rear stroke cylinder (5) is arranged on one side of the heating device (3), and ejector cylinders (6) are also arranged on both sides of the heating device. The ejector cylinders (6) are located inside the front and rear stroke cylinders (5), and the piston ends of the front and rear stroke cylinders (5) are connected to the right welding mold. The ejectors of the two groups of ejector cylinders (6) are respectively connected to the left welding mold and the right welding mold.

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