Vulcanized rubber mold with cleaning mechanism

Abstract

The utility model discloses a vulcanized rubber mould with a cleaning mechanism, which comprises a mould body, the mould body forms a mould inner wall, the vulcanized rubber mould also comprises a cleaning assembly, the cleaning assembly comprises at least three scrapers, the scrapers form a concave structure, the bottom edge of the concave structure is parallel to the bottom surface of the mould inner wall and is vertical to the side surface of the mould inner wall, and the cleaning mechanism is arranged on the mould inner wall. The side edge of the concave structure is perpendicular to the bottom face of the inner wall of the die and parallel to the side face of the inner wall of the die, the scraper can adjust the distance between the bottom face and the side face of the inner wall of the die, and then pressure applied by the scraper is adjusted. The T-shaped structure is arranged to apply pressure perpendicular to the inner wall of the die to the scraper, so that when the power piece pushes the T-shaped structure, the scraper can clean the side face and the bottom face of the T-shaped structure; secondly, a spring is arranged to enable the T-shaped structure to have an energy storage structure, elastic force borne by the scraper blade when the scraper blade is compressed is adjusted through an adjusting nut, pressure applied by the scraper blade to the side face and the bottom face of the inner wall of the mold is adjusted, and then the cleaning capacity of the scraper blade to the inner wall of the mold is adjusted.

Description

Technical Field

[0001] The utility model relates to the technical field of rubber molds, and particularly relates to a vulcanized rubber mold with a cleaning mechanism. Background Art

[0002] A rubber molding die is a tool suitable for manufacturing rubber products. Among them, a compression molding die is one of the most common production methods for rubber products. In this process, unvulcanized rubber is placed into a preheated mold. Under the action of pressure and temperature, the rubber flows and fills the mold cavity, and then is cured through a vulcanization reaction to form the required shape. It usually operates under relatively low pressure and does not require a completely closed mold, and is suitable for producing relatively simple rubber products. The vulcanized rubber involved herein refers to the process of transforming natural or synthetic rubber from a plastic state into a more durable and stable material through a chemical reaction.

[0003] After the vulcanized rubber is completed, if the release agent is unevenly distributed, the mold surface is rough, or the vulcanization temperature is too high, etc., it will cause the rubber product to adhere to the inner wall of the mold. After the rubber product is taken out of the mold, the rubber adhering to the inner wall of the mold will increase the roughness of the inner wall of the mold, exacerbating the rubber adhesion. In the prior art, manual cleaning is commonly used, but the efficiency of manual cleaning is low, and it is easy to leave cleaning dead corners. The residual rubber may affect the results of the vulcanization of different components of rubber in the mold, affecting its performance. Summary of the Utility Model

[0004] In order to solve the problem of cleaning the inner wall of a vulcanized rubber mold, the utility model provides a vulcanized rubber mold with a cleaning mechanism, and the specific technical solutions are as follows:

[0005] The utility model includes a mold body, and the mold body forms an inner wall of the mold. The vulcanized rubber mold further includes a cleaning assembly, and the cleaning assembly includes: at least three scraping plates, the scraping plates form a concave structure, the bottom edge of the concave structure is parallel to the bottom surface of the inner wall of the mold and perpendicular to the side surface of the inner wall of the mold, and the two side edges of the concave structure are perpendicular to the bottom surface of the inner wall of the mold and parallel to the side surface of the inner wall of the mold. The scraping plates can adjust the distance between the bottom surface and the side surface of the inner wall of the mold, and further adjust the pressure exerted by the scraping plates on the bottom surface and the side surface of the inner wall of the mold.

[0006] Furthermore, the cleaning assembly further includes three compression shafts that squeeze the scraping plates against the bottom surface and the side surface of the inner wall of the mold. The compression shafts can adjust their own lengths. One end of the compression shafts is connected to form a T-shaped structure. The compression shaft with a vertically placed axis is a vertical compression shaft, and the axis of the vertical compression shaft is the vertical side of the T-shaped structure. The end of the vertical compression shaft close to the bottom surface of the inner wall of the mold exerts a pressure on the scraping plate pointing to the bottom surface of the inner wall of the mold.

[0007] Preferably, the two compression axes with horizontal axes are horizontal compression axes, which form a T-shaped structure with the axis of the vertical compression axis. The axis of the horizontal compression axis is the horizontal side of the T-shaped structure, and one end of the horizontal compression axis close to the side of the inner wall of the mold applies pressure to the scraper pointing to the two sides of the inner wall of the mold.

[0008] Preferably, the compression shaft also includes a screw, the radial outer side surface of the screw is slidably connected to the radial inner side surface of the sleeve, one end of the sleeve is connected to the scraper, and the other end of the sleeve is connected to one end of a spring arranged on the radial outer side surface of the screw. A nut is provided at the end of the screw away from the sleeve, and the nut is fixedly connected to the spring. When the nut rotates, it can drive the screw to move axially relative to the sleeve, thereby adjusting the axial length of the compression shaft.

[0009] Preferably, the cleaning component also includes: a rotating shaft connected to one end of the vertical compression shaft away from the horizontal compression shaft, the vertical compression shaft can rotate around the radial outer side surface of the rotating shaft, the rotating shaft can also limit the rotation of the vertical compression shaft, and form an "I"-shaped structure with the T-shaped structure, the surface formed by the "I"-shaped structure is perpendicular to the bottom surface of the inner wall of the mold, and perpendicular to the side surface of the inner wall of the mold; and a power part for pushing the rotating shaft to move along the side surface of the inner wall of the mold.

[0010] It can be seen from the above technical solution that the utility model has the following beneficial effects:

[0011] The utility model provides a T-shaped structure to apply pressure perpendicular to the inner wall of the mold to the scraper, so that when the power part pushes the T-shaped structure, the scraper can clean the side and bottom surfaces of the inner wall of the mold along the side surfaces, so that there are no dead angles in the cleaning; secondly, a spring is provided to make the T-shaped structure have an energy storage structure, and then the elastic force exerted on the scraper when compressed can be adjusted by adjusting the nut, thereby adjusting the pressure applied by the scraper on the side and bottom surfaces of the inner wall of the mold, and then adjusting the cleaning ability of the scraper on the inner wall of the mold to ensure the cleaning effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 This is a schematic diagram of the structure of an embodiment of the utility model;

[0013] Figure 2 This is a schematic diagram of the structure of an embodiment of the cleaning component of the utility model;

[0014] Figure 3 It is a schematic structural diagram of a compression shaft embodiment of the utility model.

[0015] In the figure: 1. mold body; 2. cleaning component; 11. mold inner wall; 21. rotating shaft; 22. compression shaft; 221. screw; 222. nut; 223. bushing; 224. spring; 225. vertical compression shaft; 226. horizontal compression shaft; 23. scraper; 24. power part. Detailed implementation manners

[0016] The technical solutions in the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present utility model without creative efforts shall fall within the protection scope of the present utility model.

[0017] In the description of the embodiments of the present utility model, it should be noted that the orientation or positional relationship indicated by terms such as "inner", "outer", "upper", etc. is based on the orientation or positional relationship shown in the drawings, or the orientation or positional relationship in which the product of the utility model is usually placed during use. It is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as a limitation to the present utility model.

[0018] As Figure 1 shown, the present utility model includes a mold body 1, and the mold body 1 forms a mold inner wall 11. The vulcanized rubber mold further includes a cleaning assembly 2.

[0019] Specifically, the mold inner wall 11 is formed by four side surfaces and a bottom surface. Among them, the four side surfaces are perpendicular to each other and perpendicular to the bottom surface. The side surfaces cleaned by the cleaning assembly 2 refer to two opposite side surfaces, which can be long sides or short sides, so that the cleaning assembly 2 moves along the two opposite side surfaces and contacts all five surfaces of the mold inner wall 11. Therefore, there are no dead corners during the cleaning process of the cleaning assembly 2, and the cleanliness of the mold inner wall 11 is improved.

[0020] As Figure 2 shown, the cleaning assembly 2 includes at least three scraping plates 23. The scraping plates 23 form a concave structure. The bottom edge of the concave structure is parallel to the bottom surface of the mold inner wall 11 and perpendicular to the side surface of the mold inner wall 11. The two side edges of the concave structure are perpendicular to the bottom surface of the mold inner wall 11 and parallel to the side surface of the mold inner wall 11. The scraping plates 23 can adjust the distance between the bottom surface and the side surface of the mold inner wall 11, and thus adjust the pressure exerted by the scraping plates 23 on the bottom surface and the side surface of the mold inner wall 11.

[0021] Specifically, when the squeegee 23 moves relative to the side surface of the inner wall 11 of the mold, it can clean the side surface thereof. Therefore, the three squeegees 23 forming a concave structure can contact the bottom surface and two opposite side surfaces of the inner wall 11 of the mold. Furthermore, when the cleaning assembly 2 moves along the side surface of the inner wall 11 of the mold, it can contact all the spaces of the inner wall 11 of the mold, thereby cleaning the residual rubber. Secondly, the size of the concave structure can be adjusted to adapt to the inner wall 11 of the mold with different sizes, and can be adjusted according to the bonding force between the inner wall 11 of the mold and the adhered rubber. Furthermore, the squeegee 23 can always contact the side surface and the bottom surface of the inner wall 11 of the mold, and the greater the pressure of the squeegee 23 on the inner wall 11 of the mold, the greater the shearing force exerted on the adhered rubber when the squeegee 23 moves, thereby removing it and improving the cleanliness of the inner wall 11 of the mold.

[0022] Furthermore, the cleaning assembly 2 further includes three compression shafts 22 that squeeze the squeegee 23 against the bottom surface and the side surface of the inner wall 11 of the mold. The compression shaft 22 can adjust its own length. One end of the compression shaft 22 is connected to form a T-shaped structure. The compression shaft 225 with its axis vertically placed is the vertical compression shaft 225. The axis of the vertical compression shaft 225 is the vertical side of the T-shaped structure. One end of the vertical compression shaft 225 close to the bottom surface of the inner wall 11 of the mold exerts a pressure on the squeegee 23 pointing to the bottom surface of the inner wall 11 of the mold.

[0023] Specifically, in this embodiment, three compression shafts 22 are preferably used. The compressible ends of the three are fixedly connected to form a T-shaped structure. The plane formed by the T-shaped structure is both parallel to the side surface of the inner wall 11 of the mold and perpendicular to the bottom surface of the inner wall 11 of the mold. When the T-shaped structure moves along the side surface of the inner wall 11 of the mold, it can drive the squeegee 23 to keep the angular relationship with the inner wall 11 of the mold unchanged, thereby ensuring the stability of the pressure exerted by the squeegee 23 on the side surface and the bottom surface of the inner wall 11 of the mold and improving the cleaning quality. Secondly, the axis of one vertical compression shaft 225 among the three compression shafts 22 is vertically placed to exert a pressure on the horizontally placed squeegee 23, and the axes of the other two horizontal compression shafts 226 are horizontally placed to exert a pressure on the vertically placed squeegee 23. The vertical compression shaft 225 increases its elastic potential energy by compressing its compressible end. Furthermore, when the horizontally placed squeegee 23 is compressed by the bottom surface of the inner wall 11 of the mold, the squeegee 23 can exert a greater pressure on its bottom surface through the vertical compression shaft 225, thereby improving its cleaning ability.

[0024] Furthermore, the two compression shafts 22 with their axes horizontally placed are horizontal compression shafts 226. The horizontal compression shaft 226 and the axis of the vertical compression shaft 225 form a T-shaped structure. The axis of the horizontal compression shaft 226 is the horizontal side of the T-shaped structure. One end of the horizontal compression shaft 226 close to the side surface of the inner wall 11 of the mold exerts a pressure on the squeegee 23 pointing to the two side surfaces of the inner wall 11 of the mold respectively.

[0025] Specifically, the axes of the two horizontal compression shafts 226 are collinear, such that the lines of action of the pressures exerted by the two vertically arranged scraping plates 23 on the side surfaces of the inner wall 11 of the mold are collinear, thereby avoiding the generation of a moment by the applied pressure, which would affect the angular relationship between the scraping plate 23 and the mold, and further affect the cleaning effect. Secondly, the principle of action of the horizontal compression shaft 226 and the vertical compression shaft 225 on the scraping plate 23 is the same, that is, by increasing the elastic coefficient, the pressure generated by the scraping plate 23 being compressed towards the compression shaft 22 on the inner wall 11 of the mold is increased. The difference is that when the vertically arranged scraping plate 23 is compressed and placed into the inner wall 11 of the mold, under the elastic force of the horizontal compression shaft 226, the T-shaped structure is automatically placed in the middle of the two side surfaces of the inner wall 11 of the mold, such that regardless of whether the horizontal compression shaft 226 is symmetric about the vertical compression shaft 225, the pressures exerted by the vertically arranged scraping plate 23 on the two side surfaces of the inner wall 11 of the mold are the same, ensuring the cleaning effect of the side surfaces.

[0026] As Figure 3 shown, the compression shaft 22 further includes a screw 221, the radial outer surface of which is slidably connected to the radial inner surface of a bushing 223. One end of the bushing 223 is connected to the scraping plate 23, and the other end of the bushing 223 is connected to one end of a spring 224 provided on the radial outer surface of the screw 221. A nut 222 is provided at the end of the screw 221 remote from the bushing 223, and the nut 222 is fixedly connected to the spring 224. When the nut 222 rotates, it can drive the screw 221 to move axially relative to the bushing 223, thereby adjusting the axial length of the compression shaft 22.

[0027] Specifically, one end of the bushing 223 is fixedly connected to the scraping plate 23, and its axis is perpendicular to the length direction of the scraping plate 23. A cavity for the screw 221 to slide is formed at the other end of the bushing 223. Secondly, a spring 224 is sleeved on the radial outer surface of the screw 221, and the nut 222 provided at the end of the screw 221 remote from the bushing 223 is fixedly connected to the spring 224 by welding or other means, such that when the nut 222 rotates, it drives the spring 224 to rotate. The three screws 221 are welded to form a T-shaped structure, such that when the nut 222 rotates, the screw 221 does not move, thereby causing the spring 224 to be compressed along the axis direction of the screw 221, thereby increasing the elastic force of the spring 224 on the bushing 223, and further increasing the pressure of the bushing 223 on the scraping plate 23, improving the cleaning ability.

[0028] Furthermore, the cleaning assembly 2 further includes: a rotating shaft 21 connected to one end of the vertical compression shaft 225 away from the horizontal compression shaft 226. The vertical compression shaft 225 can rotate around the radial outer surface of the rotating shaft 21, and the rotating shaft 21 can also limit the rotation of the vertical compression shaft 225, and forms a "work" - shaped structure with the T - shaped structure. The surface formed by this "work" - shaped structure is perpendicular to the bottom surface of the inner wall 11 of the mold and perpendicular to the side surface of the inner wall 11 of the mold; and a power member 24 for pushing the rotating shaft 21 to move along the side surface of the inner wall 11 of the mold.

[0029] Specifically, the end of the vertical side of the T - shaped structure is rotatably connected to the rotating shaft 21, so that the plane formed by the T - shaped structure can rotate around the rotating shaft 21. Thus, when the power member 24 pushes the T - shaped structure close to the mold body 1, the T - shaped structure is blocked and rotates around the rotating shaft 21 until it enters the inner wall 11 of the mold. Because there is no obstruction inside, the T - shaped structure automatically returns to a position perpendicular to the side surface and the bottom surface of the inner wall 11 of the mold, and then the T - shaped structure is fixedly connected to the rotating shaft 21 through a pin, so that the power member 24 can drive the "work" - shaped structure to move along the side surface of the inner wall 11 of the mold for cleaning, thereby improving the cleaning efficiency and cleaning effect; among them, the power member 24 can be a cylinder, a servo screw mechanism and other mechanisms that can perform reciprocating linear motion.

[0030] Although the embodiments of the present invention have been shown and described, for those of ordinary skill in the art, it can be understood that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principle and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

[0031] The technologies, shapes, and structures not detailedly described in the present invention are all well - known technologies.

Claims

1. A vulcanized rubber mold with a cleaning mechanism, comprising a mold body (1), and the mold body (1) forms a mold inner wall (11), characterized in that, The vulcanized rubber mold further includes a cleaning component (2), and the cleaning component (2) includes: at least three scraping plates (23), the scraping plates (23) form a concave structure, the bottom edge of the concave structure is parallel to the bottom surface of the inner wall (11) of the mold and perpendicular to the side surface of the inner wall (11) of the mold, and the two side edges of the concave structure are perpendicular to the bottom surface of the inner wall (11) of the mold and parallel to the side surface of the inner wall (11) of the mold. The scraping plate (23) can adjust the distance between the bottom surface and the side surface of the inner wall (11) of the mold, and further adjust the pressure exerted by the scraping plate (23) on the bottom surface and the side surface of the inner wall (11) of the mold.

2. The vulcanized rubber mold according to claim 1, wherein: The cleaning component (2) further includes three compression shafts (22) that squeeze the scraping plate (23) against the bottom surface and the side surface of the inner wall (11) of the mold. The compression shafts (22) can adjust their own lengths. One end of the compression shafts (22) is connected to form a T-shaped structure. The compression shaft (225) with a vertically placed axis is a vertical compression shaft (225), and the axis of the vertical compression shaft (225) is the vertical side of the T-shaped structure. The end of the vertical compression shaft (225) close to the bottom surface of the inner wall (11) of the mold exerts a pressure on the scraping plate (23) pointing to the bottom surface of the inner wall (11) of the mold.

3. The vulcanized rubber mold according to claim 2, wherein: The two compression shafts (22) with horizontally placed axes are horizontal compression shafts (226). The horizontal compression shafts (226) and the axis of the vertical compression shaft (225) form the T-shaped structure. The axis of the horizontal compression shaft (226) is the horizontal side of the T-shaped structure. The ends of the horizontal compression shafts (226) close to the side surfaces of the inner wall (11) of the mold respectively exert pressures on the scraping plate (23) pointing to the two side surfaces of the inner wall (11) of the mold.

4. The vulcanized rubber mold according to claim 3, characterized in that: The compression shaft (22) further includes a screw rod (221). The radially outer side surface of the screw rod (221) is slidably connected to the radially inner side surface of the shaft sleeve (223). One end of the shaft sleeve (223) is connected to the scraping plate (23). The other end of the shaft sleeve (223) is connected to one end of a spring (224) arranged on the radially outer side surface of the screw rod (221). A nut (222) is arranged at the end of the screw rod (221) far from the shaft sleeve (223). The nut (222) is fixedly connected to the spring (224). When the nut (222) rotates, it can drive the screw rod (221) to move axially relative to the shaft sleeve (223), and further adjust the axial length of the compression shaft (22).

5. The vulcanized rubber mold according to claim 4, characterized in that: The cleaning component (2) further includes: a rotating shaft (21) connected to the end of the vertical compression shaft (225) far from the horizontal compression shaft (226). The vertical compression shaft (225) can rotate around the radially outer side surface of the rotating shaft (21). The rotating shaft (21) can also limit the rotation of the vertical compression shaft (225), and forms a "I"-shaped structure with the T-shaped structure. The plane formed by the "I"-shaped structure is perpendicular to the bottom surface of the inner wall (11) of the mold and perpendicular to the side surface of the inner wall (11) of the mold; and A power member (24) for driving the rotating shaft (21) to move along the side surface of the inner wall (11) of the mold.

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