Mould release agent spraying device for vulcanizing mould

Abstract

The utility model provides a vulcanizing mold release agent spraying device, which relates to the technical field of mold processing equipment and comprises a stirring tank body, a fixed seat is fixedly mounted at the top of the stirring tank body, a driving component is arranged on the right side wall of the fixed seat, and a bidirectional stirring device is arranged at the joint of the driving component. The driving assembly comprises a driving motor, a driving bevel gear is arranged at the output end of the driving motor, the bidirectional stirring device comprises a first-direction stirring assembly and a second-direction stirring assembly, and the first-direction stirring assembly and the second-direction stirring assembly are mutually matched through the unique bidirectional stirring device; the stirring blades and the stirring plates are arranged in a staggered mode, the rotating directions are opposite, the release agent in the storage tank can be stirred in an all-dimensional and dead-corner-free mode, the driving motor drives the driving bevel gear to rotate, then the upper bevel gear and the lower bevel gear are driven, and the first stirring rod and the second stirring rod are made to operate at the same time.

Description

Technical Field

[0001] This utility model relates to the field of mold processing equipment technology, and in particular to a vulcanizing mold release agent spraying device. Background Technology

[0002] In the production process of vulcanizing molds, release agents play a crucial role, ensuring that the molded product can be smoothly released from the mold, thus guaranteeing the mold's lifespan and product quality. However, traditional release agent spraying devices have many shortcomings in the mixing and filtering stages.

[0003] According to a Chinese patent document (authorization announcement number: CN217249909U), a vulcanizing mold release agent spraying device includes a telescopic rod. Several support rods are evenly arranged along the circumferential direction at the outer edge of the top of the output shaft of the telescopic rod. A top plate is horizontally connected to the top of the support rods. A rotatable drive roller is fitted into the top of the top plate. A first extension arm is fixed to the side wall of the drive roller. Release agent nozzles are symmetrically arranged at the other end of the first extension arm. The telescopic rod can adjust the height of the drive roller, and further adjust the height of the first and second extension arms. A drive motor located above the telescopic rod can adjust the angle of the drive roller, thereby adjusting the deflection angle of the first and second extension arms, facilitating the spraying of release agent onto the mold.

[0004] However, the above solution still has the following shortcomings when implemented:

[0005] The device lacks a stirring function for the release agent, which causes the solid components in the release agent to easily settle at the bottom of the storage tank. Over time, the sediment accumulates, resulting in uneven concentration of the release agent throughout the tank. When using the release agent with a lower concentration in the upper layer, the demolding effect is greatly reduced, and products may stick to the mold, increasing the scrap rate. If the lower layer of release agent containing a large amount of sediment is accidentally extracted and used, the undissolved solid particles will not only clog the nozzle but also adhere to the mold surface, affecting the surface quality of subsequent products and causing product appearance defects such as pitting and protrusions.

[0006] Therefore, we propose a vulcanizing mold release agent spraying device. Utility Model Content

[0007] The purpose of this invention is to address the shortcomings of existing technologies. The device lacks a stirring function for the release agent, which causes the solid components in the release agent to easily settle at the bottom of the storage tank. Over time, the sediment accumulates, resulting in uneven concentrations of the release agent throughout the tank. When using the lower concentration of the upper layer of release agent, the demolding effect is significantly reduced, potentially leading to product sticking to the mold and increasing the scrap rate. Furthermore, if the lower layer of release agent containing a large amount of sediment is accidentally extracted and used, the undissolved solid particles will not only clog the nozzle but also adhere to the mold surface, affecting the surface quality of subsequent products and causing defects such as pitting and protrusions.

[0008] To achieve the above objectives, the present invention adopts the following technical solution:

[0009] A vulcanizing mold release agent spraying device includes a mixing tank, a fixed base is fixedly installed on the top of the mixing tank, a driving component is provided on the right side wall of the fixed base, and a bidirectional stirring device is provided at the connection of the driving component.

[0010] The drive assembly includes a drive motor, and the output end of the drive motor is provided with a drive helical gear.

[0011] The bidirectional stirring device includes a first-direction stirring component and a second-direction stirring component;

[0012] The first directional stirring assembly includes an upper helical gear, a first stirring rod is provided inside the upper helical gear, a bearing seat is installed on the top of the upper helical gear, and a plurality of stirring blades are installed on the first stirring rod;

[0013] The second directional stirring assembly includes a second stirring rod, a lower helical gear is provided on the second stirring rod near the top, a stirring frame is installed below the lower helical gear and on the second stirring rod, and a plurality of stirring plates are installed on the two side walls inside the stirring frame.

[0014] The bottom of the mixing tank is also provided with a filter assembly, which includes a discharge pipe, a pump body at the connection of the discharge pipe, a connecting pipe at the connection of the pump body, and a filter at the top of the connecting pipe.

[0015] As a preferred embodiment of this utility model, the interior of the second stirring rod is hollow, the first stirring rod passes through the second stirring rod and is connected to the interior of the stirring tank, and the second stirring rod is connected to the stirring tank through a bearing body.

[0016] In a preferred embodiment of this utility model, the upper helical gear is fixedly connected to the first stirring rod, and the top of the first stirring rod is connected to the bearing seat, and the upper helical gear meshes with the driving helical gear.

[0017] In a preferred embodiment of this utility model, the lower helical gear is fixedly connected to the second stirring rod, and the lower helical gear meshes with the driving helical gear.

[0018] As a preferred embodiment of this utility model, the arrangement of the plurality of stirring blades and the plurality of stirring plates is staggered and the rotation directions are opposite.

[0019] As a preferred embodiment of this utility model, the discharge pipe is connected to the interior of the mixing tank, and the pump body delivers the release agent to the filter for filtration through the discharge pipe and the connecting pipe.

[0020] As a preferred embodiment of this utility model, the top of the filter is also provided with a spray pipe, the connection of the spray pipe is also provided with a spraying device, and the bottom of the mixing tank is also provided with a fixed base around its perimeter.

[0021] Compared with the prior art, the beneficial effects of this utility model are:

[0022] In this invention, a unique bidirectional stirring device is used. The first and second direction stirring components work together, and the stirring blades and stirring plates are arranged in an alternating pattern with opposite rotation directions. This allows for comprehensive and thorough stirring of the release agent in the storage tank. The drive motor drives the drive helical gear to rotate, which in turn drives the upper and lower helical gears, enabling the first and second stirring rods to operate simultaneously. This design breaks through the limitations of traditional single-blade stirring, ensuring that the release agent in the tank is fully mixed, regardless of the upper or lower layers or any corner. This effectively solves the problem of uneven concentration caused by the precipitation of solid components, ensuring that the concentration of release agent used each time is consistent, stabilizing the demolding effect, significantly reducing the risk of product sticking to the mold, and reducing waste generation.

[0023] Continuous and efficient stirring prevents solid components from settling at the bottom of the tank, avoiding the accumulation of undissolved solid particles at the nozzle and clogging the nozzle orifice. This not only reduces the frequency of nozzle maintenance and equipment downtime, improving production continuity, but also ensures the uniformity of the release agent spray.

[0024] Furthermore, the discharge pipe, pump body, connecting pipe, and filter of the filter assembly work together. The pump body delivers the well-stirred release agent to the filter through the discharge pipe and connecting pipe. The high-precision filtration capability of the filter can effectively trap fine impurities mixed in during the preparation and storage of the release agent, such as incompletely dissolved fine additives and dust, preventing these impurities from entering the nozzle of the spraying equipment. This ensures that the nozzle remains unobstructed and the spray pattern is stable, guaranteeing that all parts of the mold can obtain a precise and uniform release agent coating. It prevents problems such as insufficient release agent in key parts and difficulty in demolding due to impurities clogging the nozzle, as well as the accumulation of release agent in other parts affecting the dimensional accuracy of the product, thus ensuring the consistency and stability of the product dimensions. Attached Figure Description

[0025] Figure 1 A schematic diagram of the main structure of a vulcanizing mold release agent spraying device provided by this utility model;

[0026] Figure 2 A schematic diagram of the internal structure of the mixing tank of a vulcanizing mold release agent spraying device provided by this utility model;

[0027] Figure 3 A schematic diagram of the main body of the first direction stirring component of a vulcanizing mold release agent spraying device provided by this utility model;

[0028] Figure 4 A schematic diagram of the main body of the first direction stirring component of a vulcanizing mold release agent spraying device provided by this utility model.

[0029] Legend: 1. Mixing tank; 2. Fixed base; 3. Drive motor; 4. Drive helical gear; 5. Upper helical gear; 6. First stirring rod; 7. Bearing seat; 8. Stirring blade; 9. Second stirring rod; 10. Bearing body; 11. Lower helical gear; 12. Mixing frame; 13. Mixing plate; 14. Discharge pipe; 15. Pump body; 16. Connecting pipe; 17. Filter; 18. Spray pipe; 19. Spraying equipment; 20. Fixed base. Detailed Implementation

[0030] The technical solutions of the present utility model will be clearly and completely described below with reference to the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and 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 protection scope of the present utility model.

[0031] To facilitate understanding of this utility model, a more comprehensive description of this utility model will be provided below with reference to relevant embodiments, and several embodiments of this utility model will be given. However, this utility model can be implemented in many different forms and is not limited to the embodiments described herein. On the contrary, the purpose of providing these embodiments is to make the disclosure of this utility model more thorough and complete.

[0032] It should be noted that when an element is referred to as being "fixed to" another element, it can be directly on the other element or there may be an intervening element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or there may be an intervening element. The terms "vertical," "horizontal," "left," "right," and similar expressions used in this document are for illustrative purposes only.

[0033] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains. The terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the invention. The term "and / or" as used herein includes any and all combinations of one or more of the associated listed items.

[0034] Example

[0035] like Figure 1-4 As shown, this utility model provides a technical solution: the mixing tank 1 is made of stainless steel, which has good corrosion resistance. Its thickness is designed according to the tank volume. Generally, for tanks with a volume of 100-500L, the wall thickness is selected as 3-5mm to ensure the strength of the tank. A fixing seat 2 is welded to the top of the tank. The right side wall of the fixing seat 2 is precisely machined with the installation position of the drive component to ensure that the output shaft of the drive motor 3 is perpendicular to the center line of the tank after installation, thus ensuring the smoothness of power transmission.

[0036] The drive motor 3 is a three-phase asynchronous motor with power matching. Depending on the size of the tank and the viscosity of the release agent, the power range is between 0.75-2.2kW. The drive motor 3 is firmly installed on the fixed base 2, and its output end is connected to the drive helical gear 4 through a key connection to ensure that the two are tightly connected without loosening and that the torque is transmitted stably.

[0037] When installing the bidirectional stirring device, the first stirring rod 6 is inserted into the hollow part of the second stirring rod 9. The bottom of the first stirring rod 6 is close to the bottom of the tank but with a 5-10cm gap to prevent scratching the bottom of the tank. The first stirring rod 6 is fixedly connected to the upper helical gear 5 by welding or high-strength bolts to ensure synchronous rotation. The bearing seat 7 is used to support the rotation of the first stirring rod 6. The upper helical gear 5 and the drive helical gear 4 mesh precisely, with the meshing gap controlled at 0.1-0.3mm to ensure efficient and stable power transmission. The second stirring rod 9 is connected to the tank through the bearing body 10. The bearing is a deep groove ball bearing. Apply an appropriate amount of grease during installation to reduce frictional resistance and extend the bearing's service life. The lower helical gear 11 is installed on the second stirring rod 9 near the top, also ensuring good meshing with the drive helical gear 4. The stirring blades 8 and stirring plates 13 are made of stainless steel and are stamped. The stirring blades 8 are spirally distributed on the first stirring rod 6, and the stirring plates 13 are arranged vertically and alternately within the stirring frame 12. The spacing between the stirring blades 8 and the stirring plates 13 is 3-5cm to ensure no dead corners in the stirring.

[0038] Regarding the filter components, the discharge pipe 14 uses corrosion-resistant plastic tubing, such as PTFE tubing. The pipe diameter is selected based on the flow rate of the pump body 15, generally between 20-30 mm. One end of the discharge pipe 14 is welded to the center of the bottom of the tank to ensure that the release agent can be extracted from all parts of the tank. The pump body 15 is a gear pump, whose flow rate is matched with the tank volume and production requirements. It is installed between the discharge pipe 14 and the connecting pipe 16, and a flange connection is used to ensure sealing. The connecting pipe 16 is also made of corrosion-resistant tubing, connecting the outlet of the pump body 15 to the inlet of the filter 17. The filter 17... The cartridge filter 17 is selected, with a multi-layer precision filter element and a filtration accuracy of 0.5-1 micron. The outer shell of the filter 17 is made of stainless steel for easy installation and maintenance. The top spray pipe 18 is a flexible hose for easy connection with the spraying equipment 19. The connection is secured with clamps to prevent leakage. The fixed base 20 around the bottom of the mixing tank 1 uses a combination of rubber shock-absorbing pads and metal brackets. The rubber shock-absorbing pads are 1-2 cm thick and can effectively absorb the vibration during operation. The metal brackets are welded from angle steel to ensure the overall stability of the device.

[0039] Component debugging: After installation, first debug the drive assembly. Connect the power supply to the drive motor 3 and start the motor under no-load conditions. Observe the meshing of the drive helical gear 4, upper helical gear 5 and lower helical gear 11. Listen to the sound to determine if there is any abnormal noise. If there is noise, fine-tune the gear position to ensure good meshing. At the same time, use a tachometer to measure the speed of the first stirring rod 6 and the second stirring rod 9 and compare it with the rated speed of the motor. The error should be controlled within ±5%. If the speed is not consistent, check the motor wiring, belt (if any) or coupling connection and adjust it to the normal speed.

[0040] When debugging the filter assembly, first inject an appropriate amount of clean water into the mixing tank 1, start the pump 15, and observe whether there is any leakage at the connecting pipe 16, filter 17 and spray pipe 18. If there is leakage, tighten the corresponding connection parts. Check the inlet and outlet pressure of filter 17. When the pump 15 is running normally, the inlet pressure of filter 17 should be between 0.1-0.3MPa, and the outlet pressure should be slightly lower than the inlet pressure, with a difference of 0.05-0.1MPa. If the pressure difference is too large, it indicates that the filter element may be clogged and needs to be cleaned or replaced.

[0041] Workflow:

[0042] When stirring is started, and when it is necessary to prepare or replenish the release agent, add various raw materials to the stirring tank 1 in proportion, close the feed port, and the operator presses the stirring start button on the control panel. The control system connects the power supply to the drive motor 3, the drive motor 3 starts and drives the drive helical gear 4 to rotate clockwise (or counterclockwise, depending on the design).

[0043] The drive helical gear 4 rotates, causing the upper helical gear 5 and the lower helical gear 11 that mesh with it to rotate in opposite directions. The upper helical gear 5 drives the first stirring rod 6 and the stirring blade 8 to rotate clockwise, while the lower helical gear 11 drives the second stirring rod 9, the stirring frame 12 and the stirring plate 13 to rotate counterclockwise. Since the stirring blade 8 and the stirring plate 13 are interlaced and rotate in opposite directions, they form a strong shear force and convection effect on the release agent, which quickly stirs up the solid components that have settled at the bottom of the tank, causing the release agent to tumble and mix evenly in the tank.

[0044] After filtration and spraying, and stirring for a certain period of time (set according to experience, generally 10-30 minutes), when the release agent is evenly mixed, the operator presses the spray start button. At this time, the control system first starts the pump body 15, and the pump body 15 draws the release agent in the mixing tank 1 out through the discharge pipe 14 and delivers it to the filter 17 through the connecting pipe 16.

[0045] After the release agent enters the filter 17, fine impurities are trapped by the high-precision filter element. The purified release agent flows out from the spray pipe 18 at the top of the filter 17 and enters the spraying device 19. The spraying device 19 sprays the release agent evenly onto the surface of the vulcanizing mold through the nozzle according to the preset program or manual operation. During the spraying process, if the liquid level of the release agent in the tank drops to the set low value, the pump 15 will automatically stop working to prevent dry running and damage. At the same time, the control system will issue a low liquid level alarm signal to remind the operator to replenish the release agent in time.

[0046] After spraying is completed, the operator turns off the spraying equipment 19, pump 15 and drive motor 3 in sequence to complete a complete process of mixing, filtering and spraying the release agent. The above steps can be repeated for the next use.

[0047] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A vulcanization mold release agent spraying device comprising a stirring tank body (1), characterized in that: The top of the stirring tank body (1) is fixedly provided with a fixed seat (2), the right side wall of the fixed seat (2) is provided with a driving assembly, and the connection part of the driving assembly is provided with a bidirectional stirring device. The driving assembly comprises a driving motor (3), and the output end of the driving motor (3) is provided with a driving bevel gear (4). The bidirectional stirring device comprises a first direction stirring assembly and a second direction stirring assembly. The first direction stirring assembly comprises an upper bevel gear (5), the inside of the upper bevel gear (5) is provided with a first stirring rod (6), the top of the upper bevel gear (5) is provided with a bearing seat (7), and the first stirring rod (6) is provided with a plurality of stirring blades (8). The second direction stirring assembly comprises a second stirring rod (9), the second stirring rod (9) is provided with a lower bevel gear (11) near the top, the lower side of the lower bevel gear (11) and the second stirring rod (9) are provided with a stirring frame (12), and the two side walls in the stirring frame (12) are provided with a plurality of stirring plates (13). The bottom of the stirring tank body (1) is further provided with a filtering assembly, the filtering assembly comprises a discharge pipe (14), the connection part of the discharge pipe (14) is provided with a pump body (15), the connection part of the pump body (15) is provided with a connecting pipe (16), and the top of the connecting pipe (16) is provided with a filter (17).

2. A mold release agent spraying device for curing molds according to claim 1, characterized in that: The inside of the second stirring rod (9) is hollow, the first stirring rod (6) penetrates the second stirring rod (9) and is connected with the inside of the stirring tank body (1), and the second stirring rod (9) is connected between the bearing body (10) and the stirring tank body (1).

3. A mold release agent spraying device for a curing mold according to claim 2, characterized in that: The upper bevel gear (5) is fixedly connected with the first stirring rod (6), the top of the first stirring rod (6) is connected with the bearing seat (7), and the upper bevel gear (5) is engaged with the driving bevel gear (4).

4. A mold release agent spraying device for curing molds according to claim 3, characterized in that: The lower bevel gear (11) is fixedly connected with the second stirring rod (9), and the lower bevel gear (11) is engaged with the driving bevel gear (4).

5. A mold release agent spraying device for a curing mold according to claim 4, characterized in that: The arrangement mode of the plurality of stirring blades (8) and the plurality of stirring plates (13) is interlaced, and the rotation directions are opposite.

6. A mold release agent spraying device for curing molds according to claim 5, characterized in that: The discharge pipe (14) is connected with the inside of the stirring tank body (1), the pump body (15) is connected with the discharge pipe (14) and the connecting pipe (16) to deliver the release agent to the filter (17) for filtering.

7. A mold release agent spraying device for a curing mold according to claim 6, characterized by: The top of the filter (17) is further provided with a spray pipe (18), the connection part of the spray pipe (18) is further provided with a spraying device (19), and the periphery of the bottom of the stirring tank body (1) is further provided with a fixed base (20).

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