Precision measuring structure for mold cavity of plastic making machine
By cooperating with components such as the support frame and the pushing mechanism, multi-angle scanning and stable clamping of the mold cavity are achieved, solving the problem of inaccurate mold cavity measurement in the existing technology and improving measurement accuracy and efficiency.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- KUNSHAN LAIFUDE PRECISION MASCH CO LTD
- Filing Date
- 2025-06-23
- Publication Date
- 2026-06-30
AI Technical Summary
Existing mold cavity measuring devices can only measure depth and cannot accurately measure the cavity of molds with complex structures.
It employs components such as support frame, mounting frame, support plate, guide ball, rotating cover, placement plate, and pushing mechanism, along with an optical scanner, to achieve multi-angle swinging and stable clamping of the mold, enabling all-round precision measurement.
It enables precise measurement of the internal structure of the mold cavity, improves the accuracy and efficiency of measurement, and ensures the mold pressure test pass rate.
Smart Images

Figure CN224435325U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of mold cavity measurement technology, specifically to a precision measurement structure for mold cavities in plasticizing machines. Background Technology
[0002] The cavity is the core component of a mold. It is a key area that directly determines the shape and size of plastic products. In order to ensure the mold preparation effect, the inside of the cavity needs to be accurately measured during the mold manufacturing process.
[0003] A search revealed that patent document CN215909796U discloses a measuring device for the cavity depth of a rubber mold. This measuring device can be used to measure the cavity depth of small-sized, high-precision workpieces that cannot be measured by other general measuring tools. It can quantitatively measure the cavity depth, helping to improve the machining accuracy of mold cavities. The test pressure pass rate of molds made after applying this measuring device is increased by 5%, significantly improving the measurement efficiency of this type of cavity. It is simple and easy to operate, low in cost, convenient to operate, and has good versatility.
[0004] However, the aforementioned measuring device can only measure the depth inside the mold when performing measurement work. When the internal structure of the mold cavity is complex and there are surfaces with multiple angles, depth detection alone cannot accurately measure the internal structure of the cavity. Utility Model Content
[0005] In view of the problems existing in the precision measurement structure of the mold cavity of the plastic making machine, this utility model is proposed.
[0006] Therefore, the purpose of this utility model is to provide a precision measuring structure for the mold cavity of a plastic forming machine, which solves the problem that the existing measuring devices have limited measuring methods and cannot accurately measure the internal structure of the mold cavity.
[0007] To achieve the above objectives, this utility model provides the following technical solution:
[0008] A precision measuring structure for the mold cavity of a plastic forming machine includes a support frame and an optical scanner fixedly mounted on the top of the inner wall of the support frame. A mounting frame is fixedly mounted on the lower end of the support frame. Multiple axially evenly distributed support plates slide through the interior of the mounting frame. The tops of the multiple support plates are in common contact with a placement plate. The top of the placement plate is provided with multiple axially evenly distributed clamping components.
[0009] The top of the mounting bracket is fixedly provided with a support column, the top of the support column is fixedly provided with a guide ball, the outside of the guide ball is rotatably fitted with a rotating cover, and the rotating cover is fixedly provided at the bottom of the placement plate.
[0010] The mounting bracket is equipped with a pushing mechanism inside for moving the support plate.
[0011] Preferably, the pushing mechanism includes a support ring, which is fixedly disposed at the bottom of the inner wall of the support frame. A rotating ring is rotatably disposed through the inner wall of the support ring. A push block is fixedly disposed at the top of the rotating ring. The push block is in contact with the lower end of the support plate. A gear ring is fixedly disposed at the upper end of the outer wall of the rotating ring. A drive motor is fixedly disposed on the outer wall of the mounting frame. A gear is fixedly disposed on the output shaft of the drive motor. The gear ring is configured to cooperate with the gear.
[0012] Preferably, the support plate has a sliding hole inside, a guide frame slides through the sliding hole, the guide frame is fixedly mounted on the top of the placement plate, and a spring is fixedly mounted between the guide frame and the inner wall of the sliding hole.
[0013] Preferably, the clamping assembly includes an arc-shaped plate, which is fixedly disposed on the top of the placement plate and has an adjusting screw threaded through it. One end of the adjusting screw is fixedly provided with a rotating block, and the other end of the adjusting screw is rotatably sleeved with a clamping plate, which is in contact with the top of the placement plate.
[0014] Furthermore, a support ball is rolled and embedded on the top of the support plate, and the support ball is in contact with the bottom of the placement plate.
[0015] Preferably, the side of the mounting bracket has a through hole that cooperates with the rotation of the gear.
[0016] The technical effects and advantages provided by this utility model in the above technical solution are as follows:
[0017] 1. This utility model, through the provided support frame, mounting frame, support column, guide ball, rotating cover, placement plate, support plate, guide frame, spring and pushing mechanism, can place the mold on the placement plate. Through the contact between the push block and the bottom of the support plate, multiple support plates can push the placement plate in sequence, causing the mold to swing axially, which facilitates the optical scanner to scan the internal structure of the mold cavity and complete accurate measurement.
[0018] 2. This utility model, through the provided placement plate and clamping components, can stably clamp the mold on the top of the placement plate, ensuring the stability of the mold during the measurement process. Attached Figure Description
[0019] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in this utility model. For those skilled in the art, other drawings can be obtained based on these drawings.
[0020] Figure 1This is a schematic diagram of the structure of this utility model;
[0021] Figure 2 For the present utility model Figure 1 Enlarged schematic diagram of part A;
[0022] Figure 3 This is a top view of the clamping assembly of this utility model.
[0023] Figure 4 This is a three-dimensional structural diagram of the support plate of this utility model.
[0024] Explanation of reference numerals in the attached figures:
[0025] 1. Support frame; 2. Optical scanner; 3. Mounting frame; 4. Support plate; 5. Placement plate; 6. Support column; 7. Guide ball; 8. Rotating cover; 9. Support ring; 10. Rotating ring; 11. Push block; 12. Gear ring; 13. Drive motor; 14. Gear; 15. Guide frame; 16. Spring; 17. Arc plate; 18. Adjusting screw; 19. Rotating block; 20. Clamping plate; 21. Support ball. Detailed Implementation
[0026] To enable those skilled in the art to better understand the technical solution of this utility model, the present utility model will be further described in detail below with reference to the accompanying drawings.
[0027] This utility model discloses a precision measurement structure for the cavity of a plastic forming machine mold.
[0028] Example 1
[0029] This utility model provides, for example Figure 1-4 The precision measuring structure for the mold cavity of the plastic forming machine shown includes a support frame 1 and an optical scanner 2 fixedly mounted on the top of the inner wall of the support frame 1. A mounting frame 3 is fixedly mounted on the lower end of the support frame 1. Multiple axially evenly distributed support plates 4 slide through the interior of the mounting frame 3. A sliding hole is opened inside the support plate 4. A guide frame 15 slides through the sliding hole. The guide frame 15 is fixedly mounted on the top of the placement plate 5. A spring 16 is fixed between the guide frame 15 and the inner wall of the sliding hole. The tops of the multiple support plates 4 are in common contact with the placement plate 5. Support balls 21 are rolled and embedded on the top of the support plates 4. The support balls 21 are in contact with the bottom of the placement plate 5. Multiple axially evenly distributed clamping components are provided on the top of the placement plate 5.
[0030] The top of the mounting bracket 3 is fixedly provided with a support column 6, the top of the support column 6 is fixedly provided with a guide ball 7, the outside of the guide ball 7 is rotatably fitted with a rotating cover 8, and the rotating cover 8 is fixedly provided at the bottom of the placement plate 5.
[0031] The mounting frame 3 has an internal pushing mechanism for moving the support plate 4. The pushing mechanism includes a support ring 9, which is fixed to the bottom of the inner wall of the support frame 1. A rotating ring 10 is rotatably passed through the inner wall of the support ring 9. A push block 11 is fixed to the top of the rotating ring 10 and contacts the lower end of the support plate 4. A gear ring 12 is fixed to the upper end of the outer wall of the rotating ring 10. A drive motor 13 is fixed to the outer wall of the mounting frame 3. A gear 14 is fixed to the output shaft of the drive motor 13. The gear ring 12 and the gear 14 are engaged. A through hole is opened on the side of the mounting frame 3 to allow the gear 14 to rotate.
[0032] Example 2
[0033] Example 2, based on Example 1, aims to ensure the stability of the mold during the mold cavity measurement process. Figure 1 and Figure 3 As shown, the clamping assembly includes an arc-shaped plate 17, which is fixedly disposed on the top of the placement plate 5, and an adjusting screw 18 is threaded through its interior. One end of the adjusting screw 18 is fixedly disposed on a rotating block 19, and the other end of the adjusting screw 18 is rotatably sleeved with a clamping plate 20, which is in contact with the top of the placement plate 5.
[0034] Working principle: When in use, the mold is placed on top of the placement plate 5. The mold is fixed by the arc plate 17, adjusting screw 18 and clamping plate 20 of the clamping assembly. The drive motor 13 is started, and the gear 14 on its output shaft drives the gear ring 12 on the outer wall of the rotating ring 10 to rotate. The push block 11 on the top of the rotating ring 10 rotates accordingly and pushes the support plate 4 in the mounting frame 3 to move axially. The support ball 21 on the top of the support plate 4 supports the placement plate 5. At the same time, the guide frame 15 in the sliding hole inside the support plate 4 cooperates with the spring 16 to make the placement plate 5 swing axially around the guide ball 7 and rotating cover 8 on the top of the support column 6, causing the mold to tilt at multiple angles. At this time, the optical scanner 2 on the top of the inner wall of the support frame 1 performs a full-range scan of the mold cavity to complete the precision measurement.
[0035] The foregoing description only illustrates certain exemplary embodiments of the present invention. Undoubtedly, those skilled in the art can modify the described embodiments in various ways without departing from the spirit and scope of the present invention. Therefore, the above drawings and descriptions are illustrative in nature and should not be construed as limiting the scope of protection of the claims of the present invention.
Claims
1. A precision measuring structure for the cavity of a plastic forming machine mold, comprising a support frame (1) and an optical scanner (2) fixedly disposed on the top of the inner wall of the support frame (1), characterized in that, The lower end of the support frame (1) is fixedly provided with a mounting frame (3). Multiple axially evenly distributed support plates (4) are slidably passed through the interior of the mounting frame (3). The tops of the multiple support plates (4) are in common contact with a placement plate (5). The top of the placement plate (5) is provided with multiple axially evenly distributed clamping components. The top of the mounting bracket (3) is fixedly provided with a support column (6), the top of the support column (6) is fixedly provided with a guide ball (7), the outside of the guide ball (7) is rotatably fitted with a rotating cover (8), and the rotating cover (8) is fixedly provided at the bottom of the placement plate (5). The mounting bracket (3) is provided with a pushing mechanism inside for moving the support plate (4).
2. The precision measuring structure for the mold cavity of a plastic forming machine according to claim 1, characterized in that, The pushing mechanism includes a support ring (9), which is fixedly disposed at the bottom of the inner wall of the support frame (1). A rotating ring (10) is rotatably disposed on the inner wall of the support ring (9). A push block (11) is fixedly disposed on the top of the rotating ring (10). The push block (11) is in contact with the lower end of the support plate (4). A gear ring (12) is fixedly disposed on the upper end of the outer wall of the rotating ring (10). A drive motor (13) is fixedly disposed on the outer wall of the mounting frame (3). A gear (14) is fixedly disposed on the output shaft of the drive motor (13). The gear ring (12) and the gear (14) are configured to cooperate.
3. The precision measuring structure for the mold cavity of a plastic forming machine according to claim 1, characterized in that, The support plate (4) has a sliding hole inside, and a guide frame (15) slides through the sliding hole. The guide frame (15) is fixedly installed on the top of the placement plate (5), and a spring (16) is fixed between the guide frame (15) and the inner wall of the sliding hole.
4. The precision measuring structure for the mold cavity of a plastic forming machine according to claim 1, characterized in that, The clamping assembly includes an arc-shaped plate (17), which is fixedly disposed on the top of the placement plate (5) and has an adjusting screw (18) threaded through it. One end of the adjusting screw (18) is fixedly provided with a rotating block (19), and the other end of the adjusting screw (18) is rotatably sleeved with a clamping plate (20). The clamping plate (20) is in contact with the top of the placement plate (5).
5. The precision measuring structure for the mold cavity of a plastic forming machine according to claim 1, characterized in that, The top of the support plate (4) is fitted with a support ball (21), which contacts the bottom of the placement plate (5).
6. The precision measuring structure for the mold cavity of a plastic forming machine according to claim 2, characterized in that, The mounting bracket (3) has a through hole on its side that cooperates with the rotation of the gear (14).