Thread anti-deviation mold structure
By setting a snap-fit groove and an anti-offset snap-fit component on the rotating shaft, and utilizing the cooperation of the spring and the snap-fit block, the problem of thread offset in injection molding is solved, precise positioning is achieved, and the molding quality of the product is improved.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- ZHEJIANG RUICHEN BIOTECHNOLOGY CO LTD
- Filing Date
- 2025-05-13
- Publication Date
- 2026-04-10
AI Technical Summary
Existing injection molding technology has difficulty accurately stopping at the preset stop point of the internal thread, resulting in thread offset, which affects product sealing and finished product quality.
A snap-fit groove and an anti-offset snap-fit component are provided on the rotating shaft. The cooperation of the first spring and the snap-fit block enables automatic and precise stopping, preventing the rotating shaft from shifting.
It improves the precision of injection molding, prevents products from loosening during use, and enhances the processing quality of products.
Smart Images
Figure CN224103406U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model belongs to mould processing technical field, concretely is a kind of thread anti-deviation mould structure. BACKGROUND
[0002] Injection molding is one of the main ways to produce plastic parts with initial thread position requirements. To ensure the sealing of plastic parts, the injection precision of plastic parts with initial thread position requirements has high requirements. In the existing injection molding and molding of the inner thread of plastic parts, displacement sensors are used for detection, and the rotation of the injection part is stopped by the motor to stop the inner thread molding operation. However, due to the influence of centrifugal force inertia, it is difficult to accurately stop the thread molding device of the injection molding machine at the preset stop point of the inner thread during the rotation of the injection part after detection. This can cause deviation and affect the processing of the inner thread of some plastic parts and the quality of the finished product. SUMMARY
[0003] The utility model aims at the above problems existing in the prior art and provides a thread anti-deviation mould structure, which has the advantage of improving product processing quality.
[0004] The utility model discloses a thread anti-deviation mould structure, which comprises a rotating shaft body and an anti-deviation clamping piece.
[0005] An arc-shaped slot is formed in one side wall of the rotating shaft body for clamping and limiting the anti-deviation clamping piece, and the slot depth gradually increases from one end of the slot to the other end of the slot.
[0006] The anti-deviation clamping piece comprises a first spring and a clamping block, one end of the first spring is fixedly connected to the clamping block, the clamping block is limited and clamped in the slot, the slot has a first abutting portion on the side wall of the deepest part of the slot, the clamping block has a second abutting portion on the side close to the abutting portion, the first abutting portion and the second abutting portion abut against each other to limit the position.
[0007] Preferably, a limiting slot is formed in the side of the clamping block away from the slot, and one end of the first spring close to the clamping block is clamped and limited in the limiting slot.
[0008] Preferably, the relative height of the slot is equal to the height of the clamping block on the side close to the slot.
[0009] Preferably, the clamping block has a first contact surface on one side, the bottom of the slot has an arc-shaped contact surface, and the first contact surface abuts against the arc-shaped contact surface.
[0010] Preferably, the top of the rotating shaft body is connected with the injection molding part, for forming the internal thread of the injection molding part.
[0011] Preferably, the rotating direction of the rotating shaft body can be clockwise rotation or counterclockwise rotation.
[0012] Compared with the prior art, the utility model has the advantages that: through setting the clamping groove on the rotating shaft body, and additionally setting the first spring and the clamping block, the first spring can gradually push the clamping block into the clamping groove of the rotating shaft body, and the second abutting portion of the clamping block abuts at the first abutting portion in the clamping groove, which is favorable for automatically stopping the rotating shaft body, and accurately stopping at the preset stop point, so that the quality of the product is greatly improved, and the loosening phenomenon of the product in use is prevented. BRIEF DESCRIPTION OF DRAWINGS
[0013] Figure 1 It is the structural diagram of the utility model.
[0014] Figure 2 It is the explosion structural diagram of the utility model.
[0015] Figure 3 It is the local front connection view of the rotating shaft body and the anti-deviation clamping piece in the utility model.
[0016] Figure 4 It is the sectional view of A-A section in the utility model.
[0017] In the figure, 2, rotating shaft body;21, clamping groove;211, first abutting portion;31, first spring;32, clamping block;321, second abutting portion;4, limit groove;51, first contact surface;52, arc contact surface. DETAILED DESCRIPTION
[0018] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor are within the scope of protection of the present application.
[0019] As Figures 1 to 4 shown, a threaded anti-deviation mold structure includes a rotating shaft body 2 and an anti-deviation clamping piece;
[0020] One side wall of the rotating shaft body 2 is provided with a clamping groove 21 for clamping and limiting the anti-deviation clamping piece, the clamping groove 21 is an arc-shaped groove, and the groove depth gradually increases from one end of the clamping groove 21 to the other end of the clamping groove 21;
[0021] The anti-deviation clamping piece comprises a first spring 31 and a clamping block 32, one end of the first spring 31 is fixedly connected with the clamping block 32, the clamping block 32 is limitingly clamped with the clamping groove 21, the clamping groove 21 has a first abutting portion 211 at the sidewall of the deepest side of the clamping groove, the side of the clamping block 32 close to the abutting portion has a second abutting portion 321, the first abutting portion 211 abuts against the second abutting portion 321 for position stopping.
[0022] The rotation direction of the rotation shaft body 2 can be clockwise rotation or counterclockwise rotation.
[0023] With the above structure, by setting a clamping groove 21 on the sidewall of the rotation shaft body 2, and setting a clamping block 32 with a first spring 31 on one side of the rotation shaft body 2, the first spring 31 is fixed on the inner sidewall of the injection molding machine, the rotation shaft body 2 is formed by the internal thread forming operation of the counterclockwise rotation of the plastic part product, which is converted into the operation of clockwise rotation and position stopping, when the threaded forming device above the rotation shaft body 2 is stopped to the preset stopping point, due to the elastic stretching of the first spring 31, the first spring 31 is affected by the elastic potential, the clamping block 32 can be gradually pushed into the clamping groove 21 of the rotation shaft body 2, and the second abutting portion 321 on one side of the clamping block 32 abuts against the first abutting portion 211 in the clamping groove 21, which is beneficial to automatically stop the rotation shaft body 2, and accurately stop at the preset stopping point, which is beneficial to greatly improve the quality of the product and prevent the product from being not tightened during use.
[0024] Specifically, as shown in Figures 1 to 4 the side of the clamping block 32 away from the clamping groove 21 is provided with a limiting groove 4, and one end of the first spring 31 close to the clamping block 32 is clamped and limited in the limiting groove 4.
[0025] With the above structure, by setting the limiting groove 4, the first spring 31 is installed in the limiting groove 4 of the clamping block 32, and a pushing force is given to the clamping block 32 to push it into the clamping groove 21.
[0026] As shown in Figures 1 to 4 the relative height in the clamping groove 21 is equal to the height of the clamping block 32 close to the clamping groove 21, which is beneficial to clamping the clamping block 32 close to the clamping groove 21, without leaving a gap above and below the clamping block 32 in the clamping groove 21, so as to prevent the deviation of the clamping block 32, accurately clamping the clamping groove 21, thereby being beneficial to automatically stopping the rotation shaft body 2, and accurately stopping at the preset stopping point, which is beneficial to greatly improving the quality of the product.
[0027] As shown in Figures 1 to 4As shown, one side of the clamping block 32 has a first contact surface 51, and the groove bottom of the clamping groove 21 has an arc-shaped contact surface 52, and the first contact surface 51 abuts against the arc-shaped contact surface 52. By abutting the first contact surface 51 against the arc-shaped contact surface 52, the clamping of the clamping block 32 in the clamping groove 21 is facilitated, the rotation of the rotating shaft body 2 is quickly stopped, and the stop is facilitated.
[0028] As shown in the drawings, Figures 1 to 4 As shown, the top of the rotating shaft body 2 is connected with the injection molding part, and is used for forming an internal thread of the injection molding part.
[0029] It should be noted that all directional indications, such as upper, lower, left, right, front, back, etc., in the embodiments of the present application are only used to explain the relative positional relationship, movement condition, etc. between components in a certain posture (as shown in the drawings), and if the certain posture changes, the directional indications also change accordingly.
[0030] In addition, the descriptions involving "first", "second", etc. in the present application are only for the purpose of description, and cannot be understood as indicating or implying the relative importance of the indicated technical features or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" can explicitly or implicitly include at least one of the features. At the same time, the meaning of "and / or" appearing throughout the text is that it includes three schemes, taking "A and / or B" as an example, which includes A scheme, or B scheme, or A and B schemes. In addition, the technical solutions of each embodiment can be combined with each other, but it must be based on the realization of a person skilled in the art, and when the combination of technical solutions appears contradictory or unachievable, it should be considered that the combination of technical solutions does not exist, and is not within the scope of protection claimed by the present application.
[0031] The above components are all general standard components or components known to those skilled in the art, and their structure and principle can be known by those skilled in the art through technical manuals or through conventional experimental methods.
[0032] The specific embodiments described herein are merely illustrative of the spirit of the present application. Those skilled in the art of the present application can make various modifications or supplements to the described specific embodiments or replace them with similar ways, but without deviating from the spirit of the present application or exceeding the scope defined by the appended claims.
Claims
1. A thread anti-migration die structure, characterized by, The anti-deviation clamping piece is clamped and limited on the side wall of the rotating shaft body (2). An arc-shaped clamping groove (21) is formed on one side wall of the rotating shaft body (2), and is used for clamping and limiting the anti-deviation clamping piece. The anti-deviation clamping piece comprises a first spring (31) and a clamping block (32), one end of the first spring (31) is fixedly connected with the clamping block (32), the clamping block (32) is clamped and limited with the clamping groove (21), one side wall of the deepest side of the clamping groove (21) has a first abutting portion (211), one side of the clamping block (32) close to the abutting portion has a second abutting portion (321), the first abutting portion (211) and the second abutting portion (321) abut against each other, and are used for limiting the position.
2. A thread anti-migration die structure according to claim 1 wherein, A limiting groove (4) is formed on one side of the clamping block (32) away from the clamping groove (21), and one end of the first spring (31) close to the clamping block (32) is clamped and limited with the limiting groove (4).
3. A thread anti-migration die structure according to claim 1 wherein, The relative height in the clamping groove (21) is equal to the height of the clamping block (32) on one side close to the clamping groove (21).
4. A thread anti-migration die structure according to claim 1 wherein, One side of the clamping block (32) has a first contact surface (51), the bottom of the clamping groove (21) has an arc-shaped contact surface (52), and the first contact surface (51) and the arc-shaped contact surface (52) abut against each other.
5. A thread anti-migration die structure according to claim 1 wherein, The top of the rotating shaft body (2) is connected with an injection molding piece, and is used for forming an internal thread of the injection molding piece.
6. A thread anti-migration die structure according to claim 1 wherein, The rotating direction of the rotating shaft body (2) can be clockwise rotation or counterclockwise rotation.