Automatic glue injection and hot cutting device based on motor transmission

Abstract

The utility model discloses an automatic glue injection and hot cutting device based on motor transmission, and belongs to the technical field of mechanical automatic glue injection equipment. Comprising a glue injection module, the glue injection module comprises a feeding pipe provided with a three-way valve, and the three-way valve is further connected with a suction pipe; the feeding pipe is communicated with a glue injection channel in a lead screw lifting mechanism, and the glue injection channel is matched with a glue injection opening of the pipe mold. A heating module is arranged on the outer wall of the glue injection port; a jacking sealing mechanism is integrated in the lead screw lifting mechanism; the lead screw lifting mechanism is connected with a motor. In the glue injection stage, the three-way valve closes the direction of the suction pipe, the feeding pipe is communicated with the glue injection opening of the mold, and glue liquid is injected into the mold from the feeding barrel through the feeding pipe; in the excess material recycling stage, after glue injection is completed, the three-way ball valve closes the direction of the feeding pipe, the feeding pipe and the suction-back pipe are communicated, the uncured glue at the front end is discharged into a waste liquid collecting barrel through system pressure, and pipeline residues are avoided. The problems that in the prior art, material waste is large, and cost is high are solved.

Description

Technical Field

[0001] This utility model belongs to the technical field of mechanical automated glue dispensing equipment, and relates to an automatic glue dispensing and hot cutting device based on motor drive. Background Technology

[0002] Insulating tie rods are key components in ultra-high voltage gas-insulated metal-enclosed circuit breakers, serving to control power system loads and protect power system safety. Their production process involves first placing the insulating fabric blank into a tube mold, then placing it in an oven for vacuum impregnation and curing under specific conditions.

[0003] Traditional dispensing systems require both silicone flexible tubing and corrugated rigid tubing to accommodate different mold interface locations, using a distributor to achieve multi-channel adhesive distribution. This composite piping architecture not only increases installation complexity but also creates multiple weak points in the sealing at pipe connections. After the adhesive has cured in the mold, the uncured adhesive remaining in the piping system (approximately 5% of the total dispensing volume) undergoes a cross-linking reaction, forming a cured residue that is tightly bonded to the pipe wall. The single-use nature of this piping system increases consumable costs by 25%-30%, resulting in significant material waste. Utility Model Content

[0004] The purpose of this invention is to solve the technical problems of high material waste, high cost, and complex pipeline installation in the existing glue injection system, which increases the labor intensity of workers, and to provide an automatic glue injection and hot cutting device based on motor drive.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] In a first aspect, this utility model discloses an automatic glue injection and hot cutting device based on motor drive, including a glue injection module. The glue injection module includes a feed pipe equipped with a three-way valve, and the three-way valve is also connected to a return suction pipe. The feed pipe is connected to a glue injection channel in a screw lifting mechanism, and the glue injection channel cooperates with the glue injection port of the mold. A heating module is provided on the outer wall of the glue injection port. A lifting and sealing mechanism is integrated in the screw lifting mechanism. The screw lifting mechanism is connected to a motor.

[0007] Further improvements are made in the following aspects:

[0008] The lifting and sealing mechanism includes a sealing element fixing rod connected to the screw lifting mechanism, and a sealing element is provided on the top of the sealing element fixing rod; a spring pressing seat and a compression spring are sequentially sleeved on the outside of the sealing element fixing rod from bottom to top; the spring pressing seat and the compression spring are slidably connected to the sealing element fixing rod; the upper end of the compression spring is in contact with the sealing element.

[0009] The seal is made of rubber, polytetrafluoroethylene, polyurethane, or metal.

[0010] The three-way valve is a three-way ball valve.

[0011] The injection port is connected to the tube mold via an injection port flange.

[0012] The operating temperature of the heating module is 200℃-250℃.

[0013] The heating module employs a symmetrically arranged electric heating temperature control system.

[0014] Both the heating module and the motor are connected to a control system, which is used to control the linkage between the heating module and the motor.

[0015] A waste liquid collection tank is installed at the outlet of the back suction pipe; a glue tank is connected to the inlet of the feed pipe.

[0016] The diameter of the tube mold is φ22mm-φ37mm, and the length is 1200mm-1300mm.

[0017] Compared with the prior art, the present invention has the following beneficial effects:

[0018] This utility model discloses an automatic glue injection and hot cutting device based on motor drive. During the glue injection stage, a three-way valve closes the return suction pipe, opening the feed pipe to the mold's glue injection port, allowing the glue to be injected into the mold from the supply tank via the feed pipe. In the residual material recovery stage, after glue injection is complete, a three-way ball valve closes the feed pipe, opening the feed pipe to the return suction pipe, and using system pressure to discharge uncured glue into a waste liquid collection tank, preventing residue in the pipeline. This solves the problems of high material waste and high cost associated with existing methods.

[0019] Furthermore, a motor-driven screw lifting mechanism synchronously raises and lowers the seal, seal fixing rod, compression spring, and spring clamping seat. Once the seal contacts the injection port, the screw lifting mechanism continues to lift, and the spring clamping seat compresses the spring to generate elastic clamping force, ensuring a seal at the injection port while adapting to mold dimensional tolerances. Flexible sealing is achieved through spring compression, compensating for mold machining errors.

[0020] Furthermore, both the heating module and the motor are connected to a control system to control the linkage between the heating module and the motor. When the tube mold enters the dispensing area, the heating module is not closed and has not started heating. The motor controls the screw lifting mechanism and drives the lifting and sealing mechanism to lift. When the heating module has closed and started heating, it triggers the lifting and sealing mechanism to lift, entering the dispensing state.

[0021] Furthermore, a heating module is installed at the dispensing port. The heating module is a symmetrically arranged electric heating temperature control system. The heating module adopts a high-precision temperature control system with an operating temperature range of 200-250℃, covering both sides of the dispensing port. After the dispensing is completed, the heating module closes to pre-cure the dispensing liquid at the dispensing port, forming a sealing layer to ensure that there is no risk of dispensing during subsequent pressure relief. Attached Figure Description

[0022] To more clearly illustrate the technical solutions of the embodiments of this utility model, the accompanying drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of this utility model and should not be regarded as a limitation on the scope. For those skilled in the art, other related drawings can be obtained based on these drawings without creative effort.

[0023] Figure 1 This is a schematic diagram of the overall structure of an automatic glue dispensing and hot cutting device based on motor drive in this utility model;

[0024] Figure 2 This is a schematic diagram of the dispensing module of an automatic dispensing and hot cutting device based on motor drive in this utility model;

[0025] Figure 3 This is a schematic diagram of the lifting mechanism of an automatic glue dispensing and hot cutting device based on motor drive in the present invention when it is not lifted.

[0026] Figure 4 This is a schematic diagram of the lifting mechanism of an automatic glue dispensing and hot cutting device based on motor drive in this utility model during the lifting process.

[0027] Figure 5 This is a schematic diagram of the lifting mechanism of an automatic glue dispensing and hot cutting device based on motor drive in this utility model.

[0028] The components are as follows: 1-Injection module; 11-Feed pipe; 12-Three-way valve; 13-Return suction pipe; 14-Screw lifting mechanism; 2-Heating module; 3-Lifting sealing mechanism; 31-Seal; 32-Seal fixing rod; 33-Compression spring; 34-Spring clamping seat; 35-Injection port flange; 36-Injection port; 4-Tube mold. Detailed Implementation

[0029] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. The components of the embodiments of this utility model described and shown in the accompanying drawings can generally be arranged and designed in various different configurations.

[0030] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely to illustrate selected embodiments of the invention. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without inventive effort are within the scope of protection of the present invention.

[0031] It should be noted that similar labels and letters in the following figures indicate similar items. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.

[0032] In the description of the embodiments of this utility model, it should be noted that if terms such as "upper," "lower," "horizontal," or "inner" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship commonly used when the utility model product is in use, they are only for the convenience of describing the 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 on the utility model. Furthermore, terms such as "first" and "second" are only used to distinguish descriptions and should not be construed as indicating or implying relative importance.

[0033] Furthermore, the use of the term "horizontal" does not imply that the component must be absolutely horizontal, but rather that it can be slightly tilted. For example, "horizontal" simply means that its direction is more horizontal than "vertical," and does not mean that the structure must be completely horizontal, but can be slightly tilted.

[0034] In the description of the embodiments of this utility model, it should also be noted that, unless otherwise explicitly specified and limited, the terms "set," "install," "connect," and "link" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0035] The present invention will now be described in further detail with reference to the accompanying drawings:

[0036] See Figure 1 and Figure 2This utility model discloses an automatic glue injection and hot cutting device based on motor drive, including a glue injection module 1. The glue injection module 1 includes a feed pipe 11 equipped with a three-way valve 12, and the three-way valve 12 is also connected to a return suction pipe 13; the three-way valve 12 is a three-way ball valve. The feed pipe 11 is connected to a glue injection channel in a screw lifting mechanism 14, and the glue injection channel cooperates with the glue injection port 36 of the tube mold 4; a heating module 2 is provided on the outer wall of the glue injection port 36, and the working temperature of the heating module 2 is 200℃-250℃; the glue injection port 36 is connected to the tube mold 4 through a glue injection port flange 35, and is a detachable structure. The screw lifting mechanism 14 integrates a lifting and sealing mechanism 3; the screw lifting mechanism 14 is connected to a motor. A waste liquid collection tank is provided at the outlet of the return suction pipe 13; a glue tank is connected to the inlet of the feed pipe 11. This utility model discloses an automatic glue injection and hot cutting device based on motor drive. During the glue injection stage, a three-way valve closes the return suction pipe, opening the feed pipe to the mold's glue injection port, allowing the glue to be injected into the mold from the supply tank via the feed pipe. In the residual material recovery stage, after glue injection is complete, a three-way ball valve closes the feed pipe, opening the feed pipe to the return suction pipe, and using system pressure to discharge uncured glue into a waste liquid collection tank, preventing residue in the pipeline. This solves the problems of high material waste and high cost associated with existing methods.

[0037] See Figure 3 and Figure 4 The heating module 2 employs a symmetrically arranged electric heating temperature control system. Both the heating module 2 and the motor are connected to a control system for controlling their coordinated actions. The tube mold 4 has a diameter of φ22mm-φ37mm and a length of 1200mm-1300mm. When the tube mold enters the dispensing area, the heating module is not closed and has not started heating. The motor controls the screw lifting mechanism, which in turn drives the lifting and sealing mechanism to lift. When the heating module is closed and heating has begun, the lifting and sealing mechanism is triggered, entering the dispensing state.

[0038] See Figure 5The lifting and sealing mechanism 3 includes a sealing element fixing rod 32 connected to the screw lifting mechanism 14, with a sealing element 31 mounted on the top of the sealing element fixing rod 32. A spring clamping seat 34 and a compression spring 33 are sequentially fitted onto the outside of the sealing element fixing rod 32 from bottom to top. Both the spring clamping seat 34 and the compression spring 33 are slidably connected to the sealing element fixing rod 32. The upper end of the compression spring 33 contacts the sealing element 31. The sealing element 31 is made of rubber, polytetrafluoroethylene, polyurethane, or metal. The screw lifting mechanism, driven by a motor, synchronously lifts and lowers the sealing element, the sealing element fixing rod, the compression spring, and the spring clamping seat. After the sealing element contacts the injection port, the screw lifting mechanism continues to lift, and the spring clamping seat compresses the spring to generate an elastic clamping force, ensuring the injection port is sealed while also adapting to mold dimensional tolerances.

[0039] The working principle of this utility model is as follows:

[0040] The control logic for the three-way valve is as follows:

[0041] During the glue injection stage: the three-way valve 12 closes the direction of the back suction pipe and connects the feed pipe 11 and the glue injection port 36. The glue is injected from the feed tank into the tube mold 4 through the feed pipe 11.

[0042] Residual material recycling stage: After the glue is applied, the three-way valve 12 closes the direction of the feed pipe and connects the feed pipe 11 and the return suction pipe 13. The uncured glue at the front end is discharged into the waste liquid collection tank by the system pressure to avoid pipeline residue.

[0043] The glue injection module consists of a feed pipe 11, a three-way valve 12, a return suction pipe 13, and a screw lifting mechanism 14. At the start of glue injection, the three-way valve 12 closes the return suction pipe (direction C), opening the feed line (directions A and B) for glue injection into the mold 4. After injection, the heating module 2 heats the injection port 36 to pre-cure the glue. After pre-cure, the three-way valve 12 closes the feed pipe 11 (direction A), opening the feed pipe 11 (direction B) and the return suction pipe 13 (direction C), discharging any remaining material into the waste liquid collection tank. (The feed pipe connects to the feed tank, and the return suction pipe connects to the waste liquid collection tank.)

[0044] Lifting and sealing mechanism 3: The screw jack 14 simultaneously lifts and lowers the sealing element 31, the sealing element fixing rod 32, the compression spring 33, and the spring clamping seat 34. When the sealing element contacts the injection port, it cannot continue to rise because the sealing element and the sealing element fixing rod are in contact with the injection port. At this time, the screw jack will continue to lift, as the sealing element fixing rod 32 and the spring clamping seat 34 are slidably connected. As the screw jack continues to lift, it will drive the spring clamping seat to compress the compression spring, relying on the spring's clamping force to seal the injection port. The use of a compression spring can compensate for errors that occur during workpiece and mold processing, preventing problems such as rigid lifting, damage to corresponding products, or injection tooling. The heating module temperature can reach 200-250℃. After the glue at both ends of the injection port is completely cured and sealed, the pressure in the glue tank is released to prevent glue leakage. The equipment is compatible with products with mold diameters of φ22-φ37 and lengths of 1200-1300mm. The docking method is automated, and no air pressure pipe is used in the overall glue injection process. It can ensure the airtightness of the docking and ensure no pressure loss or glue leakage.

[0045] The above are merely preferred embodiments of this utility model and are not intended to limit the scope of this utility model. Various modifications and variations can be made to this utility model by those skilled in the art. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. An automatic glue dispensing and hot cutting device based on motor drive, characterized in that, The system includes a glue injection module (1), which includes a feed pipe (11) equipped with a three-way valve (12) and a return suction pipe (13) connected to the feed pipe (11). The feed pipe (11) is connected to a glue injection channel in a screw lifting mechanism (14), which is matched with the glue injection port (36) of the tube mold (4). A heating module (2) is provided on the outer wall of the glue injection port (36). A lifting and sealing mechanism (3) is integrated in the screw lifting mechanism (14). A motor is connected to the screw lifting mechanism (14).

2. The automatic glue dispensing and hot cutting device based on motor drive according to claim 1, characterized in that, The lifting and sealing mechanism (3) includes a sealing element fixing rod (32) connected to the screw lifting mechanism (14), and a sealing element (31) is provided on the top of the sealing element fixing rod (32); a spring pressing seat (34) and a compression spring (33) are sequentially sleeved on the outside of the sealing element fixing rod (32) from bottom to top; the spring pressing seat (34) and the compression spring (33) are slidably connected to the sealing element fixing rod (32); the upper end of the compression spring (33) is in contact with the sealing element (31).

3. The automatic glue dispensing and hot cutting device based on motor drive according to claim 2, characterized in that, The seal (31) is made of rubber, polytetrafluoroethylene, polyurethane or metal.

4. The automatic glue dispensing and hot cutting device based on motor drive according to claim 1, characterized in that, The three-way valve (12) is a three-way ball valve.

5. The automatic glue dispensing and hot cutting device based on motor drive according to claim 1, characterized in that, The injection port (36) is connected to the tube mold (4) via the injection port flange (35).

6. The automatic glue dispensing and hot cutting device based on motor drive according to claim 1, characterized in that, The operating temperature of the heating module (2) is 200℃-250℃.

7. The automatic glue dispensing and hot cutting device based on motor drive according to claim 1, characterized in that, The heating module (2) adopts a symmetrically arranged electric heating temperature control system.

8. The automatic glue dispensing and hot cutting device based on motor drive according to claim 7, characterized in that, Both the heating module (2) and the motor are connected to a control system, which is used to control the heating module (2) and the motor to perform actions in conjunction.

9. The automatic glue dispensing and hot cutting device based on motor drive according to claim 1, characterized in that, A waste liquid collection tank is provided at the outlet of the back suction pipe (13); a glue tank is connected to the inlet of the feed pipe (11).

10. The automatic glue dispensing and hot cutting device based on motor drive according to claim 1, characterized in that, The diameter of the tube mold (4) is φ22mm-φ37mm and the length is 1200mm-1300mm.

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