Anti-loose expansion push-pull mechanism for mold
By designing the anti-loosening expansion push and pull mechanism of the mold, the combination of the mounting block, adjustment rod and rotation limiting member is used to solve the problem of difficulty in adjusting the heating rod position and inconvenient cylinder drive device, and the flexible adjustment of the heating rod position and the controllability of the equipment are achieved.
Patent Information
- Application Number
- CN202421918223.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-08-08
- Publication Date
- 2025-05-30
- Estimated Expiration
- 2034-08-08
AI Technical Summary
The heating rod position adjustment in existing molds is difficult, and the heating rod adjustment device driven by electric cylinder is expensive and depends on power, making it inconvenient to use.
A mold anti-loosening expansion push and pull mechanism is designed, including a mounting block, an adjustment rod and a rotation limiting member. The heating rod position is adjusted through the rotation of the adjustment rod, and the rotation limiting member is used to limit the rotation of the adjustment rod to ensure the stability of the heating rod position.
It realizes convenient adjustment of the heating rod position, reduces equipment costs, avoids power dependence, and makes use more convenient.
Smart Images
Figure CN222920923U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the field of molds, and particularly to a mold anti-loosening expansion push-pull mechanism. Background Art
[0002] In mold design, the size and position of the discharge port play a crucial role in the quality and production efficiency of products. Adjusting the size of the mold discharge port is to ensure the uniform flow of molten plastic in the cavity and avoid problems such as uneven filling and product deformation.
[0003] The adjustment of the mold discharge port size is closely related to the use of heating rods. By reasonably selecting and using heating rods, the size of the mold discharge port can be effectively adjusted. If the gap between the heating rod and the mold hole is too large, the position of the heating rod can be adjusted. Adjust the position of the heating rod to the center position of the mold hole and adjust the distance between the heating rod and the mold hole to achieve the best heating effect.
[0004] Currently, in the adjustment of the heating rod position, an electric cylinder is used to drive the heating rod to move, but the price of the electric cylinder is relatively high, and it also has a power dependence, making it inconvenient to use. Summary of the Utility Model
[0005] In order to facilitate the adjustment of the heating rod position, the present application provides a mold anti-loosening expansion push-pull mechanism.
[0006] The mold anti-loosening expansion push-pull mechanism provided by the present application adopts the following technical solutions:
[0007] A mold anti-loosening expansion push-pull mechanism includes a mounting block, an adjusting rod, and a rotation-limiting member. The mounting block is detachably connected to the mold module. Two countersunk holes are provided on the mounting block for mating with bolts or screws. A threaded hole is penetrated through the mounting block, and the adjusting rod is threadedly connected to the threaded hole. Both ends of the adjusting rod are located on both sides of the mounting block. One end of the adjusting rod is used to connect the heating rod, and the rotation-limiting member acts on the other end of the adjusting rod to limit the rotation of the adjusting rod on the mounting block.
[0008] By adopting the above technical solutions, when it is necessary to adjust the position of the heating rod, the operator rotates the adjusting rod to adjust the position of the heating rod by changing the position of the adjusting rod, and then uses the rotation-limiting member to limit the rotation of the adjusting rod to limit the position of the heating rod, which can facilitate the adjustment of the heating rod position. At the same time, the price of the entire mold anti-loosening expansion push-pull mechanism is controllable, there is no power dependence, and it is more convenient to use.
[0009] Preferably, the axis directions of the threaded hole and the countersunk hole are parallel, and the threaded hole is located between the two countersunk holes.
[0010] By adopting the above technical solution, the operator can perform installation and debugging in the same direction, which conforms to the operating habit.
[0011] Preferably, a deformation groove is formed through the mounting block along a direction perpendicular to the axis of the countersunk hole. One end of the deformation groove communicates with the large-hole part of one of the countersunk holes, and the other end of the deformation groove communicates with the threaded hole.
[0012] By adopting the above technical solution, when the mounting block is fixed to the module using a bolt or a screw, the mounting block will deform, which will cause a certain deformation of the thread in the threaded hole, thereby restricting the rotation of the adjusting rod.
[0013] Preferably, one end of the deformation groove close to the threaded hole extends to the central axis position of the threaded hole.
[0014] By adopting the above technical solution, the threaded hole can be deformed to an appropriate extent without affecting the service life.
[0015] Preferably, a limiting groove is formed on one side surface of the mounting block facing the heating rod along a direction perpendicular to the axis of the threaded hole.
[0016] By adopting the above technical solution, the limiting groove can cooperate with a protrusion with a specific shape on the module to further limit the position of the mounting block on the module.
[0017] Preferably, the rotation-limiting member includes a spring, a fixing ring, and an abutting ring. One end of the adjusting rod away from the heating rod has a head. The fixing ring is fixedly arranged on the mounting block. The fixing ring is sleeved outside the adjusting rod and is coaxially arranged with the adjusting rod. A ring groove is provided on the end surface of the fixing ring away from the mounting block. One end of the abutting ring is slidably connected to the ring groove along the depth direction of the ring groove. Two ends of the spring respectively abut against the bottom wall of the ring groove and the abutting ring. The other end of the abutting ring abuts against the head.
[0018] By adopting the above technical solution, the rotation of the head is restricted by the frictional force generated between the abutting ring and the head. At the same time, since the abutting ring applies a force to the head in the axial direction, the pre-tightening force can be increased, which will increase the normal pressure and frictional force between the internal and external thread contact surfaces, and improve the anti-loosening performance of the adjusting rod.
[0019] Preferably, a plurality of first protrusions are sequentially arranged along the circumferential direction on one side surface of the head facing the abutting ring. The length direction of the first protrusions is arranged along the radial direction of the head. A plurality of second protrusions are arranged on one side surface of the abutting ring facing the head. The length direction of the second protrusions is arranged along the radial direction of the abutting ring. When the abutting ring abuts against the head, the first protrusions and the second protrusions are sequentially arranged at intervals and abut against each other.
[0020] By adopting the above technical solution, by setting the first rib and the second rib, the rotation of the end can be further restricted.
[0021] The technical effects of the present utility model are mainly reflected in the following aspects:
[0022] 1. When the position of the heating rod needs to be adjusted in the present utility model, the operator rotates the adjusting rod, adjusts the position of the heating rod by changing the position of the adjusting rod, and then uses the rotation limiting member to restrict the rotation of the adjusting rod to restrict the position of the heating rod, which can facilitate the position adjustment of the heating rod. At the same time, the price of the entire mold anti-loosening expansion push-pull mechanism is controllable, there is no power dependence, and it is relatively convenient to use;
[0023] 2. When the mounting block is fixed to the module using bolts or screws in the present utility model, the mounting block will deform, which will cause a certain deformation of the thread of the threaded hole, thereby restricting the rotation of the adjusting rod. Description of the Drawings
[0024] Figure 1 is the overall structural schematic diagram of the embodiment of the present application.
[0025] Figure 2 is along Figure 1 The cross-sectional view taken along the line A-A in
[0026] Figure 3 is Figure 2 The enlarged view at B in
[0027] Description of the reference numerals: 1. Mounting block; 11. Countersunk hole; 12. Threaded hole; 13. Deformation groove; 14. Limiting groove; 2. Adjusting rod; 21. End; 211. First rib; 3. Rotation limiting member; 31. Spring; 32. Fixed ring; 321. Ring groove; 33. Abutting ring; 331. Second rib; 4. Heating rod. Detailed Description of the Embodiment
[0028] The following further describes the present application in detail with reference to the Figures 1-3 drawings to make the technical solution of the present application easier to understand and master.
[0029] The embodiment of the present application discloses a mold anti-loosening expansion push-pull mechanism.
[0030] Refer to Figure 1, a mold anti-loosening expansion push-pull mechanism in this embodiment includes a mounting block 1, an adjusting rod 2 and a rotation limiting member 3. The mounting block 1 is detachably connected to the module of the mold. Two counterbore holes 11 are provided on the mounting block 1, and the counterbore holes 11 are used for cooperation with bolts or screws. A threaded hole 12 is penetrated through the mounting block 1, and the adjusting rod 2 is threadedly connected in the threaded hole 12. Both ends of the adjusting rod 2 are located on both sides of the mounting block 1 respectively. One end of the adjusting rod 2 is used to connect the heating rod 4, and the rotation limiting member 3 acts on the other end of the adjusting rod 2 to limit the rotation of the adjusting rod 2 on the mounting block 1.
[0031] Referring to Figure 1 , when it is necessary to adjust the position of the heating rod 4, the operator rotates the adjusting rod 2 to adjust the position of the heating rod 4 by changing the position of the adjusting rod 2, and then uses the rotation limiting member 3 to limit the rotation of the adjusting rod 2 to limit the position of the heating rod 4. It can facilitate the position adjustment of the heating rod 4. At the same time, the price of the entire mold anti-loosening expansion push-pull mechanism is controllable, there is no power dependence, and it is relatively convenient to use.
[0032] Referring to Figure 1 and Figure 2 , the axial direction of the threaded hole 12 is parallel to that of the counterbore hole 11, and the threaded hole 12 is located between the two counterbore holes 11. The operator can install and debug in the same direction, which conforms to the operating habit.
[0033] Referring to Figures 1-3 , a deformation groove 13 is penetrated through the mounting block 1 along the direction perpendicular to the axis of the counterbore hole 11. One end of the deformation groove 13 communicates with the large hole part of one of the counterbore holes 11, and the other end of the deformation groove 13 communicates with the threaded hole 12. When the mounting block 1 is fixed on the module using bolts or screws, the mounting block 1 will deform, which will cause a certain deformation of the thread of the threaded hole 12, thereby restricting the rotation of the adjusting rod 2.
[0034] Referring to Figures 1-3 , one end of the deformation groove 13 close to the threaded hole 12 extends to the central axis position of the threaded hole 12. It can make the threaded hole 12 deform to an appropriate degree without affecting the service life.
[0035] Referring to Figures 1-3 , a limiting groove 14 is provided on the side surface of the mounting block 1 facing the heating rod 4 along the direction perpendicular to the axis of the threaded hole 12. The limiting groove 14 can cooperate with the protrusions of a specific shape on the module to further limit the position of the mounting block 1 on the module.
[0036] Referring to Figures 1-3, the rotation-limiting member 3 includes a spring 31, a fixing ring 32 and an abutting ring 33. One end of the adjusting rod 2 away from the heating rod 4 has a head 21. The fixing ring 32 is fixedly arranged on the mounting block 1. The fixing ring 32 is sleeved outside the adjusting rod 2 and is coaxially arranged with the adjusting rod 2. A ring groove 321 is provided on the end face of the fixing ring 32 away from the mounting block 1. One end of the abutting ring 33 is slidably connected to the ring groove 321 along the depth direction of the ring groove 321. Two ends of the spring 31 respectively abut against the bottom wall of the ring groove 321 and the abutting ring 33. The other end of the abutting ring 33 abuts against the head 21.
[0037] Referring to Figures 1-3 , by the abutting ring 33 abutting against the head 21, the frictional force generated between them restricts the rotation of the head 21. At the same time, since the abutting ring 33 applies a force to the head 21 in the axial direction, the pre-tightening force can increase the normal pressure and frictional force between the internal and external thread contact surfaces, improving the anti-loosening performance of the adjusting rod 2.
[0038] Referring to Figures 1-3 , a plurality of first protrusions 211 are sequentially arranged along the circumferential direction on the side surface of the head 21 facing the abutting ring 33. The length direction of the first protrusions 211 is arranged along the radial direction of the head 21. A plurality of second protrusions 331 are provided on the side surface of the abutting ring 33 facing the head 21. The length direction of the second protrusions 331 is arranged along the radial direction of the abutting ring 33. When the abutting ring 33 abuts against the head 21, the first protrusions 211 and the second protrusions 331 are sequentially arranged at intervals and abut against each other. By providing the first protrusions 211 and the second protrusions 331, the rotation of the head 21 can be further restricted.
[0039] Referring to Figures 1-3 , the diameter of the abutting ring 33 is larger than the diameter of the head 21. When it is necessary to adjust the position of the heating rod 4, the operator applies a force to the abutting ring 33 to make it away from the head 21, and then rotates the adjusting rod 2.
[0040] Of course, the above are only typical examples of the present application. In addition, the present application can also have many other specific implementation manners. Any technical solutions formed by equivalent replacement or equivalent transformation fall within the scope of protection required by the present application.
Claims
1. A mold anti-loosening and expansion push-pull mechanism, characterized in that: The utility model comprises a mounting block (1), an adjusting rod (2) and a rotation limiting member (3); the mounting block (1) is detachably connected to a module of a mold; the mounting block (1) is provided with two countersunk holes (11) for use with bolts or screws; the mounting block (1) is provided with a threaded hole (12); the adjusting rod (2) is threadedly connected in the threaded hole (12); the two ends of the adjusting rod (2) are respectively located on two sides of the mounting block (1); one end of the adjusting rod (2) is used for connecting a heating rod (4); the rotation limiting member (3) acts on the other end of the adjusting rod (2) for limiting the rotation of the adjusting rod (2) on the mounting block (1).
2. A mold anti-loosening and expansion push-pull mechanism according to claim 1, characterized in that: The threaded hole (12) is parallel to the axial direction of the countersunk hole (11), and the threaded hole (12) is located between the two countersunk holes (11).
3. A mold anti-loosening and expansion push-pull mechanism according to claim 2, characterized in that: The mounting block (1) is provided with a deformation groove (13) extending through the mounting block (1) in a direction perpendicular to the axis of the countersunk hole (11); one end of the deformation groove (13) is connected to a large hole portion of one of the countersunk holes (11); and the other end of the deformation groove (13) is connected to a threaded hole (12).
4. A mold anti-loosening and expansion push-pull mechanism according to claim 3, characterized in that: One end of the deformation groove (13) close to the threaded hole (12) extends to the central axis position of the threaded hole (12).
5. A mold anti-loosening and expansion push-pull mechanism according to claim 1, characterized in that: The mounting block (1) is provided with a limiting groove (14) on a side surface facing the heating rod (4) along an axial direction perpendicular to the threaded hole (12).
6. A mold anti-loosening and expansion push-pull mechanism according to claim 1, characterized in that: The rotation-limiting member (3) comprises a spring (31), a fixing ring (32) and an abutting ring (33); the end of the adjusting rod (2) away from the heating rod (4) comprises an end head (21); the fixing ring (32) is fixedly arranged on the mounting block (1); the fixing ring (32) is sleeved outside the adjusting rod (2) and is coaxially arranged with the adjusting rod (2); an annular groove (321) is provided on the end surface of the end of the fixing ring (32) away from the mounting block (1); one end of the abutting ring (33) is slidably connected to the annular groove (321) along the depth direction of the annular groove (321); the two ends of the spring (31) respectively abut against the bottom wall of the annular groove (321) and the abutting ring (33); the other end of the abutting ring (33) abuts against the end head (21).
7. A mold anti-loosening and expansion push-pull mechanism according to claim 6, characterized in that: A plurality of first convex strips (211) are sequentially arranged along the circumferential direction on one side of the end head (21) facing the abutting ring (33), and the length direction of the first convex strips (211) is arranged along the radial direction of the end head (21). A plurality of second convex strips (331) are sequentially arranged along the circumferential direction on one side of the end head (21) facing the abutting ring (33), and the length direction of the second convex strips (331) is arranged along the radial direction of the abutting ring (33). When the abutting ring (33) abuts against the end head (21), the first convex strips (211) and the second convex strips (331) are sequentially arranged at intervals and abut against each other.