Thermoplastic styrene-butadiene rubber press device

Abstract

The application belongs to the technical field of rubber processing and relates to a thermoplastic styrene-butadiene rubber pressing device, which comprises a frame structure (1), the frame (1) comprises a lower frame (11) and an upper frame (12) located on the lower frame (11), a pressing lower shell (2) is arranged on the lower frame (11), a pressing structure (3) is arranged above the pressing lower shell (2), and the pressing lower shell (2) is provided with a supporting structure (4). The formed product is pushed out by the supporting structure, and the product is convenient to take; precise guiding and positioning are realized through cooperation of a limiting piece and a limiting sleeve; and the forming quality is improved through an electric heating structure, so that the device has the advantages of high production efficiency, high forming precision and good product quality.

Description

Technical Field

[0001] This invention belongs to the field of rubber processing technology and relates to a thermoplastic styrene-butadiene rubber pressing device. Background Technology

[0002] Thermoplastic styrene-butadiene rubber (SBS) is a thermoplastic elastomer that combines the excellent properties of rubber and plastic. It has good elasticity, abrasion resistance, aging resistance and excellent processing performance. It does not require vulcanization during processing and can be directly molded by injection molding, compression molding, extrusion and other processing methods. It is widely used in the production of shoe soles, tapes, hoses, wires and cables, medical devices and various rubber products.

[0003] In the compression molding process of thermoplastic styrene-butadiene rubber (SBR), existing compression molding equipment typically suffers from the following shortcomings: First, after compression molding, the molded rubber product is prone to sticking or jamming with the lower mold shell, making removal difficult and affecting processing efficiency. Second, existing equipment lacks effective positioning and limiting structures during compression molding, leading to easy misalignment between the upper and lower molds, resulting in decreased molding accuracy and difficulty in guaranteeing product quality. Third, some compression molding equipment lacks heating functions for the compression plate and lower mold shell, making temperature control during the compression molding process inconvenient and affecting molding quality and production efficiency. Furthermore, some existing thermoplastic material compression molding equipment also suffers from problems such as separating baking and molding into two processes, requiring manual loading and unloading between processes, resulting in longer production times and lower yield rates. Summary of the Invention

[0004] The purpose of this invention is to solve the above-mentioned problems and provide a thermoplastic styrene-butadiene rubber pressing device.

[0005] To achieve the above objectives, the present invention provides a thermoplastic styrene-butadiene rubber pressing device, comprising a frame structure, the frame including a lower frame and an upper frame located on the lower frame, a pressing lower shell provided on the lower frame, a pressing structure provided above the pressing lower shell, and a supporting structure provided on the pressing lower shell.

[0006] Furthermore, the lower shell is provided with a receiving groove, and the support structure includes a support plate located in the receiving groove and a movable block located on the lower side of the support plate and fixedly connected to the support plate. A driving device is provided on the lower side of the movable block and connected to the movable block.

[0007] Furthermore, a limiting structure is provided at the moving block.

[0008] Furthermore, the pressing structure includes a second drive device mounted on the upper frame and a movable plate connected to the second drive device, with a pressing plate provided on the lower side of the movable plate.

[0009] Furthermore, the upper movable plate is provided with a limiting component, and the lower pressing shell is provided with a limiting sleeve that cooperates with the limiting component.

[0010] Furthermore, the pressing plate is an electrically heated pressing plate.

[0011] Furthermore, the lower shell is pressed using an electrically heated method.

[0012] The beneficial effects of this invention are as follows: The thermoplastic styrene-butadiene rubber pressing device provided by the present invention, by setting a support structure in the lower shell of the pressing device, can drive the moving block and the support plate to move up and down. After the pressing is completed, the molded rubber product is pushed out of the receiving groove, which facilitates the quick removal of the finished product. This effectively solves the problem of difficult removal of finished products in traditional devices and improves production efficiency.

[0013] This invention limits the movement of the moving block by setting a limiting structure at the moving block, ensuring that the ejection height of the support plate is accurate and controllable, and avoiding damage to the product or device due to excessive ejection.

[0014] This invention provides precise guidance and limitation of the downward stroke of the moving plate during the pressing process by setting a limiting component on the upper moving plate and a limiting sleeve that cooperates with the limiting component on the lower pressing shell. This ensures accurate alignment between the pressing plate and the lower pressing shell, prevents deviation during the pressing process, and effectively improves the precision of pressing and the consistency of product quality.

[0015] This invention, by setting both the pressing plate and the pressing shell as electrically heated pressing plate / electrically heated pressing shell, can heat the thermoplastic styrene-butadiene rubber during the pressing process, so that the material is molded under suitable temperature conditions, improving the material's fluidity and molding effect, and further enhancing product quality. Attached Figure Description

[0016] Figure 1 This diagram schematically illustrates the structure of a thermoplastic styrene-butadiene rubber pressing apparatus according to an embodiment of the present invention. Detailed Implementation

[0017] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the embodiments will be briefly described below. Obviously, the drawings described below are merely some embodiments of the present invention, and those skilled in the art can obtain other drawings based on these drawings without creative effort.

[0018] The present invention will now be described in detail with reference to the accompanying drawings and specific embodiments. The embodiments cannot be described in detail here, but the embodiments of the present invention are not limited to the following embodiments.

[0019] like Figure 1As shown, the present invention provides a thermoplastic styrene-butadiene rubber (SBR) pressing device, comprising a frame structure 1. The frame 1 includes a lower frame 11 and an upper frame 12 located above the lower frame 11. The lower frame 11 and the upper frame 12 are fixedly connected by columns or guide columns to ensure the stability and rigidity of the entire frame structure. A pressing shell 2 is provided on the lower frame 11, which is used to support the thermoplastic SBR material to be pressed. A pressing structure 3 is provided above the pressing shell 2, which is used to press the thermoplastic SBR placed on the pressing shell 2. The pressing shell 2 is also provided with a support structure 4, which is used to push the molded rubber product out of the pressing shell 2 after pressing, facilitating removal of the part.

[0020] In this embodiment, such as Figure 1 As shown, the lower pressing shell 2 is provided with a receiving groove 21. The receiving groove 21 is a groove structure formed on the upper surface of the lower pressing shell 2, used to receive the thermoplastic styrene-butadiene rubber material to be pressed and the support plate 41 of the support structure 4. The shape and size of the receiving groove 21 can be designed according to the shape and size of the actual pressed product, for example, it can be set as a circular, square or other irregular groove.

[0021] The support structure 4 includes a support plate 41 located in the receiving groove 21 and a movable block 42 located below the support plate 41 and fixedly connected to it. The upper surface of the support plate 41 directly supports the thermoplastic styrene-butadiene rubber material, and its shape is adapted to the bottom shape of the receiving groove 21, allowing the support plate 41 to move freely up and down within the receiving groove 21. A driving device 43 is provided on the lower side of the movable block 42, and the driving device 43 is connected to the movable block 42 to drive the movable block 42 to move up and down. The driving device 43 can be a common linear drive mechanism such as a hydraulic cylinder, a pneumatic cylinder, or an electric push rod. When the driving device 43 pushes the movable block 42 upward, the movable block 42 drives the support plate 41 upward, thereby pushing the rubber product that has been pressed and molded on the support plate 41 out of the receiving groove 21, making it convenient for the operator to remove the finished product. When the driving device 43 drives the movable block 42 downward to reset, the support plate 41 falls back to the bottom of the receiving groove 21, waiting for the next pressing operation.

[0022] In this embodiment, a limiting structure 44 is provided at the moving block 42. The limiting structure 44 is used to limit the vertical movement of the moving block 42, ensuring that the ejection height and return position of the support plate 41 are accurately controllable. The limiting structure 44 can be in the form of a mechanical limiting block, a limit switch, or a limit switch. For example, an upper limit block and a lower limit block can be set on the movement path of the moving block 42. When the moving block 42 moves upward to contact the upper limit block, the drive device 43 stops, and the support plate 41 reaches the preset ejection height, avoiding damage to the product or device due to excessive ejection; when the moving block 42 moves downward to contact the lower limit block, the support plate 41 accurately returns to the working position at the bottom of the receiving groove 21, ensuring accurate material positioning during pressing.

[0023] In this embodiment, the pressing structure 3 includes a second drive device 31 mounted on the upper frame 12 and a movable plate 32 connected to the second drive device 31. The second drive device 31 can be a linear drive mechanism such as a hydraulic cylinder, pneumatic cylinder, or electric push rod. Its fixed end is mounted on the upper frame 12, and its telescopic end is fixedly connected to the movable plate 32. A pressing plate 33 is provided on the lower side of the movable plate 32. When the second drive device 31 drives the movable plate 32 to move downward, the movable plate 32 drives the pressing plate 33 to move downward. The pressing plate 33 applies pressure to the thermoplastic styrene-butadiene rubber material placed in the receiving groove 21 of the pressing lower shell 2, pressing it into shape. After pressing is completed, the second drive device 31 drives the movable plate 32 to move upward, and the pressing plate 33 separates from the pressing lower shell 2, waiting for the next pressing operation.

[0024] In this embodiment, a limiting member 321 is provided on the movable plate 32, and a limiting sleeve 22 is provided on the pressing lower shell 2. The limiting member 321 and the limiting sleeve 22 cooperate with each other. Specifically, the limiting member 321 can be configured as a guide post or guide rod extending downward from the lower surface of the movable plate 32, and the limiting sleeve 22 can be configured as a guide sleeve fixed to the upper surface of the pressing lower shell 2. The limiting member 321 slides through the limiting sleeve 22. When the second driving device 31 drives the movable plate 32 to move downward, the limiting member 321 slides in the limiting sleeve 22 to accurately guide the downward stroke of the movable plate 32, ensuring that the pressing plate 33 and the pressing lower shell 2 are accurately aligned. At the same time, the cooperation between the limiting member 321 and the limiting sleeve 22 can also play a limiting role. When the limiting member 321 moves downward to contact the bottom of the limiting sleeve 22, the movable plate 32 stops moving downward, and the pressing plate 33 reaches the preset pressing position, avoiding excessive pressing of the pressing plate 33 and damage to the pressing lower shell 2 or the material. By cooperating with the limiting component 321 and the limiting sleeve 22, the pressing plate 33 can be effectively prevented from shifting during the pressing process, thereby improving the precision of pressing and the consistency of product quality.

[0025] In this embodiment, the pressing plate 33 is an electrically heated pressing plate. An electric heating element, such as an electric heating tube or electric heating wire, can be installed inside the pressing plate 33. The electric heating element is connected to an external power source and control device via wires. During the pressing process, the control device energizes the electric heating element, heating the pressing plate 33 to a preset temperature, heating the upper surface of the thermoplastic styrene-butadiene rubber material, and softening and molding the material under suitable temperature conditions. A temperature sensor (e.g., a thermocouple) can also be installed on the pressing plate 33. The temperature sensor is connected to the control device to detect the temperature of the pressing plate 33 in real time and feeds the temperature signal back to the control device. The control device adjusts the energizing state of the electric heating element according to the feedback signal, achieving precise control of the temperature of the pressing plate 33.

[0026] In this embodiment, the pressing shell 2 is an electrically heated pressing shell. The interior of the pressing shell 2 can also be equipped with an electric heating element, such as an electric heating tube or electric heating wire, connected to an external power supply and control device via wires. During the pressing process, the control device energizes the electric heating element, heating the pressing shell 2 to a preset temperature to heat the lower surface of the thermoplastic styrene-butadiene rubber material. A temperature sensor can also be installed on the pressing shell 2 to detect its temperature in real time and feed the temperature signal back to the control device, achieving precise temperature control of the pressing shell 2. Simultaneous heating of the thermoplastic styrene-butadiene rubber material from both the top and bottom surfaces by the pressing plate 33 and the pressing shell 2 ensures more uniform heating, improves material flowability and molding effect, and further enhances product quality.

[0027] The following is in conjunction with the appendix Figure 1 The working process of the thermoplastic styrene-butadiene rubber pressing device of the present invention will be described.

[0028] First, the operator places the thermoplastic styrene-butadiene rubber material to be pressed onto the support plate 41 in the receiving groove 21 of the pressing shell 2. At this time, the drive device 43 of the support structure 4 is in the retracted state, and the support plate 41 is located at the bottom of the receiving groove 21.

[0029] Next, the electric heating functions of the pressing plate 33 and the lower pressing shell 2 are activated, heating them to preset temperatures. Simultaneously, the second drive device 31 of the pressing structure 3 is activated, driving the moving plate 32 downwards, which in turn moves the pressing plate 33 downwards. During the downward movement of the moving plate 32, the limiting member 321 slides within the limiting sleeve 22, guiding and limiting the moving plate 32 to ensure accurate alignment between the pressing plate 33 and the lower pressing shell 2. Once the pressing plate 33 moves downwards and contacts the thermoplastic styrene-butadiene rubber material in the receiving tank 21, downward pressure is applied to press the material into shape. During the pressing process, the pressing plate 33 and the lower pressing shell 2 continuously heat the material, allowing it to be formed under suitable temperature and pressure conditions.

[0030] Then, after the pressing and molding are completed, the second drive device 31 drives the moving plate 32 to move upward, and the pressing plate 33 separates from the pressing lower shell 2. Next, the drive device 43 of the support structure 4 is activated, and the drive device 43 pushes the moving block 42 upward. The moving block 42 drives the support plate 41 to move upward, pushing the thermoplastic styrene-butadiene rubber product that has been pressed and molded on the support plate 41 out of the receiving groove 21. During the upward movement of the support plate 41, the limiting structure 44 limits the movement stroke of the moving block 42 to ensure that the support plate 41 stops after being pushed out to the preset height.

[0031] Finally, the operator removes the ejected molded rubber product, and the drive device 43 drives the moving block 42 and the support plate 41 downward to return to the bottom of the receiving groove 21, so that the next pressing operation can be carried out.

[0032] The above description is merely one embodiment of the present invention and is not intended to limit the invention. Those skilled in the art will recognize that the present invention can be modified and varied in various ways. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of the present invention should be included within the scope of protection of the present invention.

Claims

1. A thermoplastic styrene-butadiene rubber pressing device, characterized in that, The frame structure (1) includes a lower frame (11) and an upper frame (12) located on the lower frame (11). The lower frame (11) is provided with a pressing lower shell (2), and a pressing structure (3) is provided above the pressing lower shell (2). The pressing lower shell (2) is provided with a support structure (4).

2. The thermoplastic styrene-butadiene rubber pressing device according to claim 1, characterized in that, The lower shell (2) is provided with a receiving groove (21). The support structure (4) includes a support plate (41) located in the receiving groove (21) and a moving block (42) located on the lower side of the support plate (41) and fixedly connected to the support plate (41). A driving device (43) is provided on the lower side of the moving block (42) and connected to the moving block (42).

3. The thermoplastic styrene-butadiene rubber pressing apparatus according to claim 2, characterized in that, A limiting structure (44) is provided at the moving block (42).

4. The thermoplastic styrene-butadiene rubber pressing apparatus according to claim 3, characterized in that, The pressing structure (3) includes a second drive device (31) mounted on the upper frame (12) and a movable plate (32) connected to the second drive device (31). A pressing plate (33) is provided on the lower side of the movable plate (32).

5. The thermoplastic styrene-butadiene rubber pressing apparatus according to claim 4, characterized in that, The upper movable plate (32) is provided with a limiting member (321), and the lower pressing shell (2) is provided with a limiting sleeve (22) that cooperates with the limiting member (321).

6. The thermoplastic styrene-butadiene rubber pressing apparatus according to claim 5, characterized in that, The pressing plate (33) is an electrically heated pressing plate.

7. The thermoplastic styrene-butadiene rubber pressing apparatus according to claim 6, characterized in that, The lower shell (2) is pressed by electric heating.

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