A precision mold structure

Abstract

The utility model discloses a precision part mould structure relates to mould technical field, including upper mould, the top of upper mould is provided with feed inlet, the bottom of upper mould is provided with lower mould, the inside of lower mould is provided with limit component, the inside of lower mould is provided with stripping assembly, limit component includes mounting block, and mounting block fixedly connected in the bottom of upper mould, one side fixed connection of mounting block has the sliding sleeve, the inner wall sliding connection of sliding sleeve has first inclined rod. The precision part mould, through starting upper mould and driving a series of linkage structure, mounting block and sliding sleeve, first inclined rod cooperation, and fixed plate and second inclined rod cooperation, can make fixed block and positioning rod synchronously and accurately and limit workpiece, and the whole release limiting process is smooth and natural, effectively avoids the tedious and error of manual operation, creates good condition for subsequent workpiece smooth stripping, improves production quality and efficiency.

Description

Technical Field

[0001] This utility model relates to the field of mold technology, specifically to a precision parts mold structure. Background Technology

[0002] Precision molds are complex and precise, serving as core equipment for manufacturing high-precision parts. The main body consists of a moving mold and a fixed mold, precisely guided by guide pillars and bushings to ensure a tight fit between the mold cavity and the mold, preventing burrs. The gating system is the channel for molten material to enter the cavity; the design of the main runner and branch runners must balance smooth filling with easy removal of residual material. The gate location directly affects the product molding quality. Molded parts include cavities, cores, and inserts, with surfaces subjected to high-precision grinding and polishing to ensure a smooth finish. The temperature control system uses circulating water or heating elements to control the mold temperature, maintaining optimal material flow and preventing shrinkage or deformation due to temperature differences. The venting system utilizes the parting line gap or venting channels to expel gases from the cavity, preventing scorching or incomplete filling. The ejection mechanism uses ejector pins, ejector plates, or pneumatic methods to balance demolding forces and prevent product deformation. The overall structure emphasizes modular design, facilitating maintenance, replacement, and functional upgrades, meeting the high-efficiency production needs of diverse, small-batch precision parts.

[0003] However, in the existing technology, some precision parts mold structures lack convenient devices for quickly releasing workpiece limits, which may affect efficiency in the part removal process. At the same time, with only a single ejector pin, the ejection stability and reliability may be limited when facing complex working conditions or special workpieces, which to some extent restricts the full performance of the overall mold. Therefore, we need a precision parts mold structure. Utility Model Content

[0004] The purpose of this utility model is to provide a precision part mold structure to solve the existing problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a precision parts mold structure, including an upper mold, a feed port at the top of the upper mold, a lower mold at the bottom of the upper mold, a limiting component inside the lower mold, and a demolding component inside the lower mold. The limiting component includes a mounting block, which is fixedly connected to the bottom of the upper mold. A sliding sleeve is fixedly connected to one side of the mounting block, a first inclined rod is slidably connected to the inner wall of the sliding sleeve, a fixing block is fixedly connected to one side of the sliding sleeve, and a workpiece is disposed on one side of the fixing block. A second inclined rod is fixedly connected to the top of the lower mold, and a fixing plate is slidably connected to the outer wall of the second inclined rod.

[0006] Preferably, the mounting block forms a movable structure with the first inclined rod via a sliding sleeve, and one side of the sliding sleeve is fixedly connected to one side of the mounting block, and the inner wall of the sliding sleeve is slidably connected to the outer wall of the first inclined rod.

[0007] Preferably, the positioning rod forms a movable structure with the second inclined rod through the fixing plate, and one side of the fixing plate is fixedly connected to one end of the positioning rod, and the inner wall of the fixing plate is slidably connected to the outer wall of the second inclined rod.

[0008] Preferably, the top of the lower mold is provided with a first inclined rod and a second inclined rod, and the first inclined rod and the second inclined rod are arranged vertically and horizontally.

[0009] Preferably, the demolding assembly includes a spring, which is fixedly connected to the top of the lower mold. A support rod is fixedly connected to the top of the lower mold, a first push rod is fixedly connected to the top of the support rod, a second push rod is fixedly connected to the top of the other support rod, and a round rod is fixedly connected to the top of the lower mold.

[0010] Preferably, the lower mold and the upper mold form an elastic structure through a spring, with one end of the spring fixedly connected to the top of the lower mold and the other end of the spring fixedly connected to the bottom of the upper mold.

[0011] Preferably, the lower mold forms a support structure with the first push rod via a support rod, and the bottom of the support rod is fixedly connected to the top of the lower mold, and the top of the support rod is fixedly connected to the bottom of the first push rod.

[0012] Compared with the prior art, the beneficial effects of this utility model are: this precision parts mold structure, (1) After the machine is started to feed and form, the upper mold is started to drive a series of linkage structures. The mounting block and the sliding sleeve, the first inclined rod cooperate, and the fixing plate and the second inclined rod work together to synchronously and accurately release the fixing block and the positioning rod from the workpiece limit. The whole process of releasing the limit is smooth and natural, effectively avoiding the tediousness and error of manual operation, creating good conditions for the subsequent smooth demolding of the workpiece, and improving production quality and efficiency. (2) When the upper mold drives the lower mold to move upward, the lower mold squeezes the spring to contract, and pushes the first and second push rods upward with the help of the support rod, giving the workpiece force from below. At the same time, the lower mold drives the round rod to move upward, directly pushing the workpiece upward. This dual action mechanism applies demolding force to the workpiece from different directions and intensities, forming a synergistic effect, significantly enhancing the demolding effect, effectively avoiding workpiece sticking, ensuring demolding integrity and efficiency, and improving production quality. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the main structure of the present utility model; Figure 2 This is a schematic diagram of the first inclined rod and the fixing block structure of this utility model; Figure 3 This is a schematic diagram of the second diagonal bar and fixing plate structure of this utility model; Figure 4 This is a schematic diagram of the first and second push rods of this utility model.

[0014] In the diagram: 1. Upper mold; 2. Feed port; 3. Lower mold; 4. Limiting component; 5. Demolding component; 401. Mounting block; 402. Sliding sleeve; 403. First inclined rod; 404. Fixing block; 405. Workpiece; 406. Second inclined rod; 407. Fixing plate; 408. Positioning rod; 501. Spring; 502. Support rod; 503. First ejector rod; 504. Second ejector rod; 505. Round rod. Detailed Implementation

[0015] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0016] This utility model embodiment provides a precision part mold structure, such as Figure 1 , Figure 2 , Figure 3 and Figure 4 As shown, it includes an upper mold 1, with a feed port 2 at the top of the upper mold 1, a lower mold 3 at the bottom of the upper mold 1, a limiting component 4 inside the lower mold 3, and a demolding component 5 inside the lower mold 3. The limiting component 4 includes a mounting block 401, and the mounting block 401 is fixedly connected to the bottom of the upper mold 1. A sliding sleeve 402 is fixedly connected to one side of the mounting block 401. The inner wall of the sliding sleeve 402 is slidably connected to a first inclined rod 403. A fixing block 404 is fixedly connected to one side of the sliding sleeve 402. A workpiece 405 is set on one side of the fixing block 404. A second inclined rod 406 is fixedly connected to the top of the lower mold 3. A fixing plate 407 is slidably connected to the outer wall of the second inclined rod 406. When the machine is started, the material is injected from the feed port 2. After molding, the upper mold 1 is started to drive the mounting block 401. The mounting block 401 drives the sliding sleeve 402 to move along the outer wall of the first inclined rod 403, so that the sliding sleeve 402 drives the fixing block 404 to move, so that the fixing block 404 is released from the limiting fixation of the workpiece 405. At the same time, the upper mold 1 drives the fixing plate 407 to slide along the outer wall of the second inclined rod 406, so that the fixing plate 407 drives the positioning rod 408 to release from the fixation of the workpiece 405, thus releasing the limiting fixation of the workpiece 405 and facilitating the subsequent demolding of the workpiece 405.

[0017] Furthermore, such as Figure 2As shown, the mounting block 401 forms a movable structure with the first inclined rod 403 via the sliding sleeve 402, and one side of the sliding sleeve 402 is fixedly connected to one side of the mounting block 401, and the inner wall of the sliding sleeve 402 is slidably connected to the outer wall of the first inclined rod 403, so that when the mounting block 401 moves, it drives the sliding sleeve 402 to move, so that the sliding sleeve 402 moves along the outer wall of the first inclined rod 403.

[0018] Furthermore, such as Figure 2 and Figure 3 As shown, the positioning rod 408 forms a movable structure with the second inclined rod 406 through the fixing plate 407, and one side of the fixing plate 407 is fixedly connected to one end of the positioning rod 408, and the inner wall of the fixing plate 407 is slidably connected to the outer wall of the second inclined rod 406, so that the fixing plate 407 can slide along the outer wall of the second inclined rod 406, so that the fixing plate 407 drives the positioning rod 408 to move and disengage from the fixation of the workpiece 405.

[0019] Furthermore, such as Figure 2 and Figure 3 As shown, the top of the lower mold 3 is provided with a first inclined rod 403 and a second inclined rod 406, and the first inclined rod 403 and the second inclined rod 406 are arranged vertically and horizontally, which can make the limiting block simultaneously disengage from the workpiece 405, thereby improving the demolding efficiency.

[0020] This utility model embodiment provides a precision part mold structure, such as Figure 1 , Figure 2 and Figure 4 As shown, the demolding assembly 5 includes a spring 501, which is fixedly connected to the top of the lower mold 3. A support rod 502 is fixedly connected to the top of the lower mold 3, and a first ejector rod 503 is fixedly connected to the top of the support rod 502. A second ejector rod 504 is fixedly connected to the top of the other support rod 502. A round rod 505 is fixedly connected to the top of the lower mold 3. Simultaneously, the upper mold 1 drives the lower mold 3 to move upward, and the lower mold 3 compresses the spring 501 to make it contract under force. The lower mold 3 drives the support rod 502 to move, so that the support rod 502 pushes the first ejector rod 503 and the second ejector rod 504 to move upward, which improves the demolding effect on the workpiece 405. At the same time, the lower mold 3 drives the round rod 505 to move upward, and the round rod 505 pushes the workpiece 405 upward to complete the demolding, which further improves the demolding effect.

[0021] Furthermore, such as Figure 1 and Figure 4 As shown, the lower mold 3 forms an elastic structure with the upper mold 1 through the spring 501, and one end of the spring 501 is fixedly connected to the top of the lower mold 3, and the other end of the spring 501 is fixedly connected to the bottom of the upper mold 1. By setting the spring 501, the spring 501 can support the upper mold 1 under the support of the lower mold 3, thereby improving the connection effect between the lower mold 3 and the upper mold 1.

[0022] Furthermore, such as Figure 1 and Figure 4 As shown, the lower mold 3 forms a support structure with the first ejector rod 503 via the support rod 502. The bottom of the support rod 502 is fixedly connected to the top of the lower mold 3, and the top of the support rod 502 is fixedly connected to the bottom of the first ejector rod 503. This allows the support rod 502 to push the first ejector rod 503 to move when the lower mold 3 moves the support rod 502.

[0023] Working principle: The machine is started, and the material is injected through the feed inlet 2. After molding, the upper mold 1 is activated, causing it to move the mounting block 401. The mounting block 401 moves the sliding sleeve 402 along the outer wall of the first inclined rod 403, causing the sliding sleeve 402 to move the fixing block 404, thus releasing the fixing block 404 from its position on the workpiece 405. Simultaneously, the upper mold 1 moves the fixing plate 407 along the outer wall of the second inclined rod 406, causing the fixing plate 407 to move the positioning rod 408 away from its position on the workpiece 405, releasing the fixation. The limiting of workpiece 405 facilitates subsequent demolding of workpiece 405. At the same time, the upper mold 1 drives the lower mold 3 to move upward. The lower mold 3 compresses the spring 501, causing it to contract under force. The lower mold 3 drives the support rod 502 to move, which in turn pushes the first ejector rod 503 and the second ejector rod 504 upward, improving the demolding effect of workpiece 405. The lower mold 3 also drives the round rod 505 to move upward, which pushes the workpiece 405 upward to complete the demolding, further improving the demolding effect. It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

Claims

1. A precision part mold structure, comprising an upper mold (1), characterized in that: The upper mold (1) has a feed port (2) at its top and a lower mold (3) at its bottom. The lower mold (3) has a limiting component (4) inside and a demolding component (5) inside. The limiting component (4) includes a mounting block (401) and a positioning rod (408). The mounting block (401) is fixedly connected to the bottom of the upper mold (1). A sliding sleeve (402) is fixedly connected to one side of the mounting block (401). A first inclined rod (403) is slidably connected to the inner wall of the sliding sleeve (402). A fixing block (404) is fixedly connected to one side of the sliding sleeve (402). A workpiece (405) is provided on one side of the fixing block (404). A second inclined rod (406) is fixedly connected to the top of the lower mold (3). A fixing plate (407) is slidably connected to the outer wall of the second inclined rod (406).

2. The precision part mold structure according to claim 1, characterized in that: The mounting block (401) forms a movable structure with the first inclined rod (403) through the sliding sleeve (402), and one side of the sliding sleeve (402) is fixedly connected to one side of the mounting block (401), and the inner wall of the sliding sleeve (402) is slidably connected to the outer wall of the first inclined rod (403).

3. The precision part mold structure according to claim 1, characterized in that: The positioning rod (408) forms a movable structure with the second inclined rod (406) through the fixing plate (407), and one side of the fixing plate (407) is fixedly connected to one end of the positioning rod (408), and the inner wall of the fixing plate (407) is slidably connected to the outer wall of the second inclined rod (406).

4. The precision part mold structure according to claim 1, characterized in that: The top of the lower mold (3) is provided with a first inclined rod (403) and a second inclined rod (406), and the first inclined rod (403) and the second inclined rod (406) are arranged vertically and horizontally.

5. The precision part mold structure according to claim 1, characterized in that: The demolding assembly (5) includes a spring (501), and the spring (501) is fixedly connected to the top of the lower mold (3). A support rod (502) is fixedly connected to the top of the lower mold (3). A first push rod (503) is fixedly connected to the top of the support rod (502). A second push rod (504) is fixedly connected to the top of the other support rod (502). A round rod (505) is fixedly connected to the top of the lower mold (3).

6. A precision part mold structure according to claim 1 or 5, characterized in that: The lower mold (3) forms an elastic structure with the upper mold (1) through a spring (501), and one end of the spring (501) is fixedly connected to the top of the lower mold (3), and the other end of the spring (501) is fixedly connected to the bottom of the upper mold (1).

7. A precision part mold structure according to claim 1 or 5, characterized in that: The lower mold (3) forms a support structure with the first push rod (503) through the support rod (502), and the bottom of the support rod (502) is fixedly connected to the top of the lower mold (3), and the top of the support rod (502) is fixedly connected to the bottom of the first push rod (503).

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