An upper mold structure of a rubber-coated wheel mold

Abstract

The utility model relates to injection mold technical field, especially relates to a kind of encapsulation wheel mold upper die structure, including upper die plate and cavity, the bottom center position of the upper die plate is provided with accommodating groove, the four corners of the accommodating groove are evenly provided with avoiding hole, the cavity is fixedly installed in accommodating groove, and the bottom end surface of the cavity is located the bottom end surface that passes out accommodating groove, the top of the cavity is provided with the equal-height support in the top end of accommodating groove, the top four corners of the accommodating groove are provided with the through-hole that passes up and down, the top of the cavity is provided with the thread hole corresponding to through-hole one to one, the side of the upper die plate is provided with multiple rectangular holes. By adopting the above technical scheme, the equal-height support can level the cavity, greatly facilitates the adjustment of the flatness of the cavity in the upper die plate, reduces the adjustment difficulty.

Description

Technical Field

[0001] This utility model relates to the field of injection mold technology, and in particular to an upper mold structure for a rubber-coated wheel mold. Background Technology

[0002] Existing rubber-coated wheels are divided into two molding methods based on their materials: one is silicone heat curing, and the other is injection molding. For existing injection-molded rubber-coated wheel molds, in order to ensure the smoothness of the surface and minimize overflow at the mold gap, the rubber-coated wheel mold needs to be adjusted. The upper mold part is called the cavity, and the lower mold part is called the core. Traditionally, the fit between the core and the cavity surface is adjusted by adjusting the tightness of the bolts used to suspend the core and cavity. This method is very inconvenient and can easily affect the strength of the suspending bolts. During use, the bolts may break due to different tightness. Moreover, the bolts are hidden inside the mold base, requiring frequent disassembly and assembly of the mold for adjustment, which is very troublesome and complicated. Utility Model Content

[0003] The purpose of this invention is to provide an upper mold structure for a rubber-coated wheel mold to solve the problems existing in the prior art.

[0004] The above-mentioned technical objective of this utility model is achieved through the following technical solution:

[0005] A rubber-coated wheel mold upper mold structure includes an upper mold plate and a cavity. The upper mold plate has a receiving groove at its bottom center position, and the receiving groove has clearance holes at its four corners. The cavity is fixedly installed in the receiving groove, and the bottom end face of the cavity is located at the bottom end face that extends out of the receiving groove. The top of the cavity is provided with a height-equal support located at the top of the receiving groove. The top four corners of the receiving groove are provided with through holes extending vertically. The top of the cavity is provided with threaded holes corresponding to the through holes. The upper mold plate has multiple rectangular holes on one side.

[0006] By adopting the above technical solution, the leveling bracket can level the cavity, which greatly facilitates the adjustment of the flatness of the cavity within the upper template and reduces the difficulty of adjustment.

[0007] In a further embodiment, the equal-height support includes a first support plate, a second support plate, a guide post, and a guide sleeve. Both the top center of the first and second support plates have through holes. The first support plate is fixedly installed inside the top of the receiving groove, and the second support plate is fixedly installed on the top of the cavity. The guide sleeve is fixedly installed at the bottom center of the first support plate, and the guide post is fixedly installed at the top center of the second support plate. The top end of the guide post is slidably installed inside the guide sleeve. Multiple first screws are evenly distributed at the bottom of the first support plate, and second screws corresponding to the first screws are distributed at the top of the second support plate. There is a gap between the bottom end face of the first screw and the top end face of the second screw. An internally threaded sleeve is screwed to the bottom end of the first screw, and the bottom end of the internally threaded sleeve is screwed to the top end of the second screw. The helix angles of the first and second screws are opposite.

[0008] By adopting the above technical solution, the adjusting tool is locked to the internal threaded sleeve after passing through the rectangular hole. The internal threaded sleeve is rotated, and the distance between different areas of the first support plate and the second support plate changes by rotating the internal threaded sleeve in different directions at different positions. Since the second support plate is fixedly connected to the top of the cavity, the cavity can be leveled in this way. In use, the leveling bracket is installed and then installed on the top of the cavity. Finally, the entire part is placed in the receiving groove, and the locking bolts are tightened to fix the cavity in the receiving groove at the bottom of the upper template. Then, the internal threaded sleeve at different positions can be fine-tuned according to the test results. Since every dimension of the upper template and the cavity is high-precision, only fine-tuning is needed. In the actual adjustment of the mold, the level of the cavity is fine-tuned by the different tightening forces of the bolts after tightening. There is no problem that the internal threaded sleeve cannot be adjusted due to the tightening of multiple bolts.

[0009] In a further embodiment, the outer axis of the internally threaded sleeve is uniformly provided with a plurality of cylindrical protrusions.

[0010] In a further embodiment, a sealing block is detachably inserted into the rectangular hole.

[0011] The above technical solution is used to seal the rectangular hole after adjustment.

[0012] In a further embodiment, positioning grooves are provided at the four corners of the bottom of the cavity.

[0013] In a further embodiment, the surface roughness of the upper and lower end faces of the equal-height support is 0.36Ra.

[0014] In summary, this utility model has the following beneficial effects:

[0015] 1. The cavity can be leveled by using the equal-height bracket, which greatly facilitates the adjustment of the flatness of the cavity within the upper template and reduces the difficulty of adjustment. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0017] Figure 2 This is a structural schematic diagram of the height-equalizing support used to illustrate this utility model.

[0018] In the diagram, 1 is the upper template; 2 is the cavity; 3 is the equal-height support; 31 is the first support plate; 32 is the second support plate; 33 is the guide post; 34 is the guide sleeve; 4 is the first screw; 5 is the second screw; and 6 is the internal threaded sleeve. Detailed Implementation

[0019] The present invention will be further described in detail below with reference to the accompanying drawings.

[0020] Identical parts are indicated by the same reference numerals. It should be noted that the terms "front," "rear," "left," "right," "upper," and "lower" used in the following description refer to the attached figures. Figure 1 In this specification, the terms "bottom surface" and "top surface," "inner" and "outer" refer to the direction toward or away from the geometry of a specific component. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this specification, "a plurality of" means two or more, unless otherwise explicitly and specifically defined by the direction of the center.

[0021] Example 1:

[0022] like Figures 1-2As shown, a rubber-coated wheel mold upper mold structure includes an upper mold plate 1 and a cavity 2. A receiving groove is provided at the bottom center of the upper mold plate 1, and clearance holes are provided at each of the four corners of the receiving groove. The cavity 2 is fixedly installed inside the receiving groove, with its bottom end face located at the bottom end face extending out of the receiving groove. A height-equalizing bracket 3 is provided at the top of the cavity 2, located at the top of the receiving groove. Through holes are provided at the four corners of the top of the receiving groove. Threaded holes corresponding to the through holes are provided at the top of the cavity 2. Multiple rectangular holes are provided on one side of the upper mold plate 1. The height-equalizing bracket 3 includes a first support plate 31, a second support plate 32, a guide post 33, and a guide sleeve 34. Through holes are provided at the top center of both the first support plate 31 and the top center of both the second support plate 32. The first support plate 31 is fixedly installed inside the top of the receiving groove, and the second support plate 32 is fixedly installed on the top of the cavity 2. The guide sleeve 3... 4 is fixedly installed at the bottom center of the first support plate 31, and the guide post 33 is fixedly installed at the top center of the second support plate 32. The top end of the guide post 33 is slidably installed in the guide sleeve 34. Multiple first screws 4 are evenly arranged at the bottom of the first support plate 31, and second screws 5 corresponding to the first screws 4 are arranged at the top of the second support plate 32. There is a gap between the bottom end face of the first screw 4 and the top end face of the second screw 5. An internal thread sleeve 6 is screwed to the bottom end of the first screw 4. The bottom end of the internal thread sleeve 6 is screwed to the top end of the second screw 5. The thread helix angles of the first screw 4 and the second screw 5 are opposite. Multiple cylindrical protrusions are evenly arranged on the outer axis of the internal thread sleeve 6 to seal the rectangular hole after adjustment. Positioning grooves are provided at the four corners of the bottom of the cavity 2. The surface roughness of the upper and lower end faces of the equal height bracket 3 is 0.36Ra.

[0023] Specific implementation process: The leveling bracket can level the cavity, greatly facilitating the adjustment of the flatness of the cavity within the upper template and reducing the difficulty of adjustment. After the adjustment tool is locked with the internal threaded sleeve through the rectangular hole, the internal threaded sleeve is rotated. By rotating the internal threaded sleeve in different directions at different positions, the distance between different areas of the first and second support plates changes. Since the second support plate is fixedly connected to the top of the cavity, the cavity can be leveled in this way. When using it, the leveling bracket is installed, then installed on the top of the cavity, and finally the entire part is placed in the receiving groove. The locking bolts fix the cavity in the receiving groove at the bottom of the upper template. Then, based on the test results, the internal threaded sleeves at different positions can be fine-tuned. Since every dimension of the upper template and the cavity is high-precision, only fine-tuning is needed. In the actual adjustment of the mold, the levelness of the cavity is fine-tuned by the different locking forces of the locked bolts. There is no problem that the internal threaded sleeve cannot be used for adjustment due to the locking of multiple bolts.

[0024] In the embodiments disclosed in this utility model, the terms "installation," "connection," "linking," and "fixing" should be interpreted broadly. For example, "connection" can be a fixed connection, a detachable connection, or an integral connection; "linking" can be a direct connection or an indirect connection through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms in the embodiments disclosed in this utility model according to the specific circumstances.

[0025] This specific embodiment is merely an explanation of the present utility model and is not intended to limit the present utility model. After reading this specification, those skilled in the art can make modifications to this embodiment without contributing any inventive step, but as long as they are within the scope of the claims of the present utility model, they are protected by patent law.

Claims

1. A mold upper structure for a rubber-coated wheel mold, characterized in that: The upper template (1) and the cavity (2) are included. The upper template (1) has a receiving groove at the bottom center. The four corners of the receiving groove are provided with clearance holes. The cavity (2) is fixedly installed in the receiving groove, and the bottom end face of the cavity (2) is located at the bottom end face that extends out of the receiving groove. The top of the cavity (2) is provided with a height-equal support (3) located at the top of the receiving groove. The four corners of the top of the receiving groove are provided with through holes that extend vertically. The top of the cavity (2) is provided with threaded holes that correspond one-to-one with the through holes. The upper template (1) has multiple rectangular holes on one side.

2. The upper mold structure of a rubber-coated wheel mold according to claim 1, characterized in that: The equal-height support (3) includes a first support plate (31), a second support plate (32), a guide post (33), and a guide sleeve (34). Both the top center of the first support plate (31) and the top center of the second support plate (32) are provided with through holes. The first support plate (31) is fixedly installed in the inner top of the receiving groove, the second support plate (32) is fixedly installed in the top of the cavity (2), the guide sleeve (34) is fixedly installed in the bottom center of the first support plate (31), and the guide post (33) is fixedly installed in the top center of the second support plate (32). The top end of the column (33) is slidably installed in the guide sleeve (34). The bottom of the first support plate (31) is evenly provided with a plurality of first screws (4). The top of the second support plate (32) is provided with second screws (5) corresponding to the first screws (4). There is a gap between the bottom end face of the first screw (4) and the top end face of the second screw (5). The bottom end of the first screw (4) is screwed with an internal thread sleeve (6). The bottom end of the internal thread sleeve (6) is screwed with the top end of the second screw (5). The thread helix angles of the first screw (4) and the second screw (5) are opposite.

3. The upper mold structure of a rubber-coated wheel mold according to claim 2, characterized in that: The outer axis of the internal threaded sleeve (6) is uniformly provided with multiple cylindrical protrusions.

4. The upper mold structure of a rubber-coated wheel mold according to claim 1, characterized in that: Used to seal the rectangular hole after adjustment.

5. The upper mold structure of a rubber-coated wheel mold according to claim 1, characterized in that: The cavity (2) has positioning grooves at its four bottom corners.

6. The upper mold structure of a rubber-coated wheel mold according to claim 1, characterized in that: The surface roughness of the upper and lower end faces of the equal height support (3) is 0.36Ra.

Images