A raw material pretreatment device for leather keyboard production
By introducing a combination design of a discharge mechanism and a stirring paddle into the leather keyboard production equipment, the problems of uniformity of molten material and discharge control were solved, achieving efficient mixing and precise discharge of materials, thereby improving production efficiency and product quality.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- SHENZHEN MINGHONG INTELLIGENT MANUFACTURING TECHNOLOGY CO LTD
- Filing Date
- 2025-08-20
- Publication Date
- 2026-07-31
AI Technical Summary
The lack of an effective stirring structure in existing leather keyboard production equipment leads to uneven temperature distribution of molten materials, insufficient mixing, and inaccurate discharge control, which affects material uniformity and production efficiency.
A pretreatment device including a discharge mechanism and a stirring paddle was designed. Through the combination of a chute, a slider and an adjusting sleeve, the baffle plate can be precisely adjusted and automatically reset. Combined with the motor-driven stirring paddle, the material is ensured to be uniformly mixed and accurately discharged.
It improves material uniformity and production efficiency, reduces waste, enhances product quality and production stability, and meets the high standards required for modern electronic component manufacturing.
Smart Images

Figure CN224575943U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of leather keyboard production technology, and more specifically, it relates to a raw material pretreatment device for leather keyboard production. Background Technology
[0002] In the leather keyboard manufacturing industry, raw material pretreatment is a crucial step in ensuring finished product quality, requiring precise heating, melting, and uniform mixing of various polymers, adhesives, and additives. Traditional raw material pretreatment equipment typically uses simple heating containers for material melting. However, in actual production, the lack of an effective stirring structure leads to uneven temperature distribution in the molten material, easily causing localized overheating or underheating, affecting the material's uniformity and stability. Simultaneously, inconsistent viscosity and insufficient mixing often occur during the melting process, directly impacting the material properties in subsequent processing steps. These problems are particularly prominent in the production of high-quality leather keyboards, not only reducing the product's appearance and lifespan but also increasing material waste and energy consumption during production, failing to meet the high standards required for modern precision electronic component manufacturing.
[0003] In industrial environments where raw materials for leather keyboard cases are mass-produced, precise metering and controlled discharge of materials from different batches and with different formulations are required. Existing pretreatment equipment generally lacks precise and adjustable discharge and regulation mechanisms. Operators often rely solely on simple valve switches to control the discharge of molten material, making precise flow rate adjustment difficult. This crude discharge method not only easily leads to material waste but also frequently causes inefficiencies in upstream and downstream processes, impacting overall production efficiency. Utility Model Content
[0004] (a) Technical problems to be solved
[0005] In view of the problems existing in the prior art, this utility model provides a raw material pretreatment device for the production of leather keyboard cases, so as to solve the technical problems mentioned in the background art.
[0006] (II) Technical Solution
[0007] To achieve the above objectives, this utility model provides the following technical solution: a raw material pretreatment device for leather keyboard production, comprising a support frame, a tray fixedly mounted on the support frame, a heating tank fixedly mounted on the tray, a feeding hopper mounted on the top surface of the heating tank, a discharging hopper fixedly mounted on the bottom surface of the tray, a discharging mechanism provided on the bottom surface of the heating tank, the discharging mechanism comprising a connecting sleeve and an adjusting mechanism, the connecting sleeve being connected to the bottom surface of the heating tank, a sliding groove being provided on the inner side of the connecting sleeve, the sliding groove being provided with multiple sets, each with a slider slidingly mounted on its inner side, the adjusting mechanism comprising a baffle plate and an adjusting sleeve, the baffle plate being fixed on the inner side of the multiple sets of sliders, the adjusting sleeve sliding within the connecting sleeve, and a connecting plate being provided between the adjusting sleeve and each of the multiple sets of baffle plates.
[0008] The present invention is further configured such that multiple sets of the sliding grooves are inclinedly arranged inside the connecting sleeve, which can make the baffle plate slide more smoothly during the sliding process, facilitate the rapid discharge of materials, and improve the discharge efficiency.
[0009] The present invention is further configured such that all of the connecting plates are spring plates, which can provide a rebound force during the adjustment process, so that the baffle plate automatically returns to its original position when no force is applied, thereby enhancing the automatic reset capability of the device.
[0010] The present invention is further configured such that guide grooves are provided on the inner walls of the multiple sets of slide grooves, and guide blocks are fixedly provided on the outer sides of the multiple sets of sliders. The multiple sets of guide blocks slide in the multiple sets of guide grooves respectively, which can accurately guide the sliding trajectory of the baffle plate and improve the stability and reliability of the discharge structure.
[0011] The present invention is further configured such that a guide block is fixedly provided on the inner side of the connecting sleeve, and a guide groove is provided on the outer wall of the adjusting sleeve. Multiple sets of guide blocks and guide grooves are provided and slidably connected, which can limit the movement direction of the adjusting sleeve, prevent it from shaking and deviating, and improve the adjustment accuracy.
[0012] The present invention is further configured such that each of the multiple sets of guide grooves is provided with a positioning groove, the positioning grooves are provided in multiple sets and the distance between them is set to be the same, each of the multiple sets of guide blocks is provided with a sliding hole on the inner side, each of the multiple sets of sliding holes is provided with a positioning block, and each of the multiple sets of positioning blocks is connected to the inner wall of the sliding hole with a push spring, which can realize the precise positioning of the adjusting sleeve at different positions and ensure the controllability of the discharge opening size.
[0013] The present invention is further configured such that all of the multiple sets of positioning blocks and positioning grooves are arc-shaped, which can make the positioning process smoother and improve the fit stability and service life of the positioning structure.
[0014] The present invention is further configured such that a motor is fixedly mounted on the top of the support frame, a rotating rod is fixedly mounted on the output end of the motor, the rotating rod is located inside the heating tank, and a stirring paddle is fixedly mounted on the bottom end of the rotating rod. The stirring paddle is provided in multiple sets and is respectively fixed on the outer wall of the rotating rod, which can realize the full stirring and mixing of raw materials during the heating process, thereby improving the heating uniformity and processing efficiency.
[0015] (III) Beneficial Effects
[0016] Compared with the prior art, this utility model provides a raw material pretreatment device for the production of leather keyboard cases, which has the following beneficial effects:
[0017] 1. This device, by incorporating a discharge mechanism, effectively solves the problem of raw material discharge from the heating tank. Through the coordinated action of the connecting sleeve and the adjusting mechanism, the position of the baffles can be precisely controlled, allowing the flow space formed between multiple sets of baffles to change according to demand, thereby ensuring smooth material discharge and preventing blockages. Simultaneously, the design of the adjusting mechanism makes the discharge process more flexible, allowing adjustments based on material characteristics and production needs to ensure smooth material flow and improve production efficiency.
[0018] 2. This device uses a motor to drive a rotating rod, which in turn drives multiple sets of stirring paddles to efficiently stir the melted raw materials. The combined design of the rotating rod and stirring paddles ensures a uniform and stable stirring process, effectively promoting the mixing and heating of the raw materials. The design of multiple sets of stirring paddles ensures that materials in different areas are uniformly stirred, avoiding uneven heating in certain areas and ensuring that the raw materials reach the ideal state during pretreatment.
[0019] 3. This device significantly improves material handling efficiency during production through precise discharge control and flexible stirring design. The adjustability of the discharge mechanism greatly improves material flowability, preventing material accumulation or uneven flow. The multiple sets of stirring paddles ensure thorough mixing of materials during heating, enhancing production stability and consistency, thereby improving the quality of the final product and production efficiency. Attached Figure Description
[0020] Figure 1 This is a schematic diagram of the overall structure of a raw material pretreatment device for producing leather keyboard cases according to this utility model;
[0021] Figure 2 This is a cross-sectional view of the heating tank in this utility model;
[0022] Figure 3 This is a schematic diagram of the connecting sleeve in this utility model;
[0023] Figure 4This is a schematic diagram of the structure of the adjusting sleeve and the baffle in this utility model;
[0024] Figure 5 This is a cross-sectional view of the connecting sleeve in this utility model.
[0025] In the diagram: 1. Support frame; 2. Pallet; 3. Heating tank; 4. Feed hopper; 5. Discharge hopper; 6. Connecting sleeve; 7. Slide groove; 8. Sliding block; 9. Baffle plate; 10. Adjusting sleeve; 11. Connecting plate; 12. Guide groove; 13. Guide block; 14. Guide block; 15. Guide groove; 16. Positioning groove; 17. Sliding hole; 18. Positioning block; 19. Push spring; 20. Motor; 21. Rotating rod; 22. Agitator. Detailed Implementation
[0026] It should be noted that, unless otherwise specified, the embodiments and features described in this application can be combined with each other. The present invention will now be described in detail with reference to the accompanying drawings and embodiments.
[0027] It should be noted that, unless otherwise specified, all technical and scientific terms used in this application have the same meaning as commonly understood by one of ordinary skill in the art to which this application pertains.
[0028] In this utility model, unless otherwise stated, the orientations used, such as "up" and "down", usually refer to the direction shown in the accompanying drawings, or to the vertical, perpendicular, or gravitational direction; similarly, for ease of understanding and description, "left" and "right" usually refer to the left and right shown in the accompanying drawings; "inner" and "outer" refer to the inner and outer contours of each component itself, but the above directional terms are not used to limit this utility model.
[0029] Please see Figures 1-5 A raw material pretreatment device for producing leather keyboard cases includes a support frame 1, a tray 2 fixedly mounted on the support frame 1, a heating tank 3 fixedly mounted on the tray 2, a feed hopper 4 installed on the top surface of the heating tank 3, a discharge hopper 5 fixedly mounted on the bottom surface of the tray 2, and a discharge mechanism provided on the bottom surface of the heating tank 3. The discharge mechanism includes a connecting sleeve 6 and an adjustment mechanism. The connecting sleeve 6 is connected to the bottom surface of the heating tank 3, and a sliding groove 7 is provided on the inner side of the connecting sleeve 6. Multiple sets of sliding grooves 7 are provided, and sliders 8 are slidably mounted on the inner side of each set. The adjustment mechanism includes a baffle plate 9 and an adjustment sleeve 10. The baffle plate 9 is fixed on the inner side of the multiple sets of sliders 8, and the adjustment sleeve 10 slides within the connecting sleeve 6. A connecting plate 11 is provided between the adjustment sleeve 10 and the multiple sets of baffle plates 9.
[0030] Multiple sets of chutes 7 are inclinedly arranged inside the connecting sleeve 6. The inclined structure can guide the slider 8 to slide smoothly along the chutes 7, thereby driving the baffle plate to achieve stable material discharge adjustment, using gravity to assist in material discharge and improve efficiency.
[0031] All sets of connecting plates 11 are set as spring plates. The spring plate structure has a certain elasticity and can provide an automatic reset function after the slider 8 moves, ensuring that the baffle plate returns to the initial position when it is not subjected to external force, thus achieving automatic closure.
[0032] The inner walls of multiple sets of sliding grooves 7 are provided with guide grooves 12, and the outer sides of multiple sets of sliders 8 are fixed with guide blocks 13. The multiple sets of guide blocks 13 slide in the multiple sets of guide grooves 12 respectively. The guide structure can precisely limit the sliding path of sliders 8, prevent sliders from deviating or getting stuck, and improve the stability and reliability of the sliding mechanism.
[0033] A guide block 14 is fixedly provided on the inner side of the connecting sleeve 6, and a guide groove 15 is provided on the outer wall of the adjusting sleeve 10. Multiple sets of guide blocks 14 and guide grooves 15 are provided and slidably connected. The guiding cooperation can ensure that the adjusting sleeve 10 slides stably in a predetermined direction, avoids rotation or deflection, and improves the adjustment accuracy.
[0034] Each of the multiple sets of guide grooves 15 has a positioning groove 16. The positioning grooves 16 are provided in multiple sets and the distance between them is set to be the same. Each of the multiple sets of guide blocks 14 has a sliding hole 17 on its inner side. Each of the multiple sets of sliding holes 17 has a positioning block 18 slidingly mounted in it. Each of the multiple sets of positioning blocks 18 is connected to the inner wall of the sliding hole 17 with a push spring 19. This structure can realize the precise positioning of the adjusting sleeve 10 in multiple positions, and automatically embed it into the corresponding positioning groove 16 with the help of the elastic force of the push spring 19, so as to ensure that the adjusting device maintains a stable position during operation.
[0035] Multiple sets of positioning blocks 18 and positioning grooves 16 are all set in an arc shape. The arc structure can make the contact between the positioning blocks 18 and the positioning grooves 16 smooth, reduce friction and jamming, and improve the stability and service life of the positioning structure.
[0036] A motor 20 is fixedly installed at the top of the support frame 1, and a rotating rod 21 is fixedly installed at the output end of the motor 20. The rotating rod 21 is located inside the heating tank 3, and a stirring paddle 22 is fixedly installed at the bottom of the rotating rod 21. Multiple sets of stirring paddles 22 are respectively fixed on the outer wall of the rotating rod 21. The motor 20 drives the rotating rod 21 to rotate and drive the multiple sets of stirring paddles 22 to stir the materials, so that the raw materials in the heating tank 3 are evenly mixed, thereby improving the heating efficiency and mixing uniformity.
[0037] In this embodiment, during use, the raw materials are fed into the heating tank 3 through the feed hopper 4. The heating tank 3 heats and melts the raw materials. The motor 20 is started to drive the rotating rod 21 to rotate. The rotating tube drives multiple sets of stirring paddles 22 to stir and mix the melted raw materials. When it is necessary to discharge the raw materials from the heating tank 3, the adjusting sleeve 10 is pushed so that multiple sets of positioning grooves 16 push the positioning blocks 18 to slide along the sliding holes 17 and squeeze the push spring 19, so that the multiple sets of positioning blocks 18 move in the multiple sets of positioning grooves 16. The adjusting sleeve 10 pulls the baffle plates 9 through multiple sets of connecting plates 11. The multiple sets of baffle plates 9 slide along the sliding grooves 7 and guide grooves 12 through the slider 8 and guide blocks 13, respectively, so that a flow space is formed between the multiple sets of baffle plates 9, so that the raw materials flow out of the heating tank 3 and are guided to the external collection device through the discharge hopper.
[0038] More specifically, the size of the flow area between the multiple sets of baffles 9 is determined by the multiple sets of positioning grooves 16. When the adjusting sleeve 10 moves to the appropriate position, the multiple sets of push springs 19 push the multiple sets of positioning blocks 18 to abut against the positioning grooves 16, thereby restricting the position of the adjusting sleeve 10.
[0039] In summary, during use or operation of the overall equipment: When in use, raw materials are fed into the heating tank 3 through the feed hopper 4. The heating tank 3 heats and melts the raw materials. The motor 20 is started, driving the rotating rod 21 to rotate. This rotating rod drives multiple sets of stirring paddles 22 to stir and mix the melted raw materials. When it is necessary to discharge the raw materials from the heating tank 3, the adjusting sleeve 10 is pushed, causing multiple sets of positioning grooves 16 to push the positioning blocks 18 to slide along the sliding holes 17 and compress the push springs 19. This causes the positioning blocks 18 to move within the positioning grooves 16. The adjusting sleeve 10 pulls the baffle plates 9 through multiple sets of connecting plates 11. The baffle plates 9 slide along the sliding grooves 7 and guide grooves 12 via sliders 8 and guide blocks 13, respectively, thus creating a flow space between the baffle plates 9. This allows the raw materials to flow out of the heating tank 3 and be guided to the external collection device through the discharge hopper.
[0040] The size of the flow area between the multiple sets of baffles 9 is determined by the multiple sets of positioning grooves 16. When the adjusting sleeve 10 moves to the appropriate position, the multiple sets of push springs 19 push the multiple sets of positioning blocks 18 to abut in the positioning grooves 16, thereby restricting the position of the adjusting sleeve 10.
[0041] Of all the solutions mentioned above, those involving connections between two components can be selected based on the actual situation, such as welding, bolt and nut connection, bolt or screw connection, or other well-known connection methods. These will not be elaborated on here. For all the fixed connections mentioned above, welding is the preferred option.
[0042] In all the solutions mentioned above, the operation of electrical components, unless otherwise specified, is controlled by a controller. Since the devices matched with the controllers are common devices, their control principles and wiring connections are existing, well-known, and mature technologies, and their specific circuit structures will not be described in detail here. The specific models and specifications of the electrical components involved in this solution need to be selected and determined according to the actual specifications of the device. The specific selection and calculation methods adopt existing technologies in this field, and therefore will not be described in detail.
[0043] Of all the solutions mentioned above, those involving motors can be combined with reducers if necessary. The connection structure and working principle between the motor and the reducer are existing well-known technologies, and this utility model will not describe them in detail.
[0044] 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 raw material pretreatment device for leather keyboard production, comprising a support frame (1), characterized in that: The support frame (1) is fixedly provided with a tray (2), the tray (2) is fixedly provided with a heating tank (3), the top surface of the heating tank (3) is provided with a feed hopper (4), the bottom surface of the tray (2) is fixedly provided with a discharge hopper (5), the bottom surface of the heating tank (3) is provided with a discharge mechanism, the discharge mechanism includes a connecting sleeve (6) and an adjustment mechanism, the connecting sleeve (6) is connected to the bottom surface of the heating tank (3), the inner side of the connecting sleeve (6) is provided with a sliding groove (7), the sliding groove (7) is provided with multiple sets of sliders (8) that slide on the inner side, the adjustment mechanism includes a baffle plate (9) and an adjustment sleeve (10), the baffle plate (9) is fixed inside the multiple sets of sliders (8), the adjustment sleeve (10) slides inside the connecting sleeve (6), and a connecting plate (11) is connected between the adjustment sleeve (10) and the multiple sets of baffle plates (9).
2. The raw material pretreatment device for leather keyboard production according to claim 1, characterized in that: All of the aforementioned grooves (7) are inclinedly arranged inside the connecting sleeve (6).
3. The raw material pretreatment device for leather keyboard production according to claim 2, characterized in that: All of the connecting plates (11) are configured as spring plates.
4. The raw material pretreatment device for leather keyboard production according to claim 3, characterized in that: multiple sets The inner wall of each slide groove (7) is provided with a guide groove (12), and the outer side of each of the multiple sets of sliders (8) is fixed with a guide block (13), and the multiple sets of guide blocks (13) slide in the multiple sets of guide grooves (12).
5. The raw material pretreatment device for leather keyboard production according to claim 4, characterized in that: The inner side of the connecting sleeve (6) is fixedly provided with a guide block (14), and the outer wall of the adjusting sleeve (10) is provided with a guide groove (15). The guide block (14) and the guide groove (15) are provided with multiple sets and are slidably connected.
6. The raw material pretreatment device for leather keyboard production according to claim 5, characterized in that: multiple sets The guide groove (15) is provided with a positioning groove (16). There are multiple sets of positioning grooves (16) and the distance between them is set to be the same. The inner side of the multiple sets of guide blocks (14) is provided with sliding holes (17). The positioning blocks (18) are slidably provided in the multiple sets of sliding holes (17). The multiple sets of positioning blocks (18) are connected to the inner wall of the sliding holes (17) with push springs (19).
7. The raw material pretreatment device for producing leather keyboard cases according to claim 6, characterized in that: The multiple sets of positioning blocks (18) and positioning grooves (16) are all set to be arc-shaped.
8. The raw material pretreatment device for producing leather keyboard cases according to claim 7, characterized in that: The top of the support frame (1) is fixed with a motor (20), and the output end of the motor (20) is fixed with a rotating rod (21). The rotating rod (21) is located inside the heating tank (3). The bottom end of the rotating rod (21) is fixed with a stirring paddle (22). The stirring paddle (22) has multiple sets that are respectively fixed on the outer wall of the rotating rod (21).