A multi-directional centering positioning structure for an injection mold frame

Abstract

The utility model relates to injection mold technology field, and the positioning inner conical cylinder is movably inserted in the second mount pad, and the first mount pad and the second mount pad are movably provided with the connecting block, and the positioning conical head is matched with the positioning inner conical cylinder, and the first mount pad and the second mount pad are fixedly provided with the spring, and one end of the spring is fixedly provided with the magnetic force lifting ring that is adsorbed and contacted with the connecting block, and one end of the locking screw is rotatably inserted in the connecting block, and the upper mold frame and the lower mold frame are fixedly provided with the fixed frame, and the first mount pad and the second mount pad are fixedly arranged on the upper and lower fixed frame, not only realize the horizontal plane horizontal and longitudinal synchronous automatic centering and precision positioning of the upper mold frame and the lower mold frame in the mold closing process through the conical surface cooperation structure, effectively overcome the limitation of traditional guide pillar guide sleeve one -way constraint, but also can realize the convenient dismounting of positioning part.

Description

Technical Field

[0001] This utility model relates to the field of injection mold technology, specifically to a multi-directional centering and positioning structure for an injection mold frame. Background Technology

[0002] In the production and application of injection molds, the precise centering and positioning of the mold base is crucial to ensuring the molding accuracy of plastic parts, reducing mold wear, and extending service life. Currently, the industry commonly uses guide pillars and guide sleeves to achieve mold closing centering. However, guide pillars can generally only constrain a single radial offset. In addition, during long-term mold opening and closing cycles, guide pillars and guide sleeves are prone to wear, leading to increased clearance and decreased positioning accuracy. However, guide pillars and guide sleeves are usually connected to the mold base body by interference fit or bolt fastening. When parts wear out and need to be replaced, it is often necessary to use special tools to disassemble a large number of bolts and other parts, which is cumbersome and time-consuming. Therefore, there is an urgent need for a multi-directional centering and positioning structure for injection mold bases. Utility Model Content

[0003] The purpose of this invention is to address the shortcomings and deficiencies of the existing technology by providing a reasonably designed multi-directional centering and positioning structure for injection mold bases, thereby solving the aforementioned problems.

[0004] To achieve the above objectives, the present invention adopts the following technical solution: it includes a first mounting base and a second mounting base, with four first mounting bases fixedly installed on the front and rear sides of the left and right side walls of the upper mold frame, and four second mounting bases fixedly installed on the front and rear sides of the left and right side walls of the lower mold frame.

[0005] It also includes: four positioning inner cones, each movably inserted into four No. 2 mounting seats, with connecting blocks movably abutting within both No. 1 and No. 2 mounting seats, and the positioning inner cones fixedly connected to the connecting blocks below; four positioning cones, each fixedly mounted on four upper connecting blocks, and the positioning cones cooperating with the positioning inner cones, with springs fixedly mounted within both No. 1 and No. 2 mounting seats, one end of which is fixedly fitted with a magnetic lifting ring that attracts and abuts against the connecting blocks; and eight locking screws, each rotatably inserted into the four No. 1 and four No. 2 mounting seats via bearings, with one end of the locking screws rotatably inserted into the connecting blocks via threads. Fixed frames are fixedly mounted on both the upper and lower mold frames, with No. 1 and No. 2 mounting seats fixedly mounted on the upper and lower fixed frames respectively, and the fixed frames are equipped with a synchronous control mechanism connected to the locking screws.

[0006] Furthermore, the synchronization control mechanism includes:

[0007] The drive rod consists of two rods, which are rotatably mounted in the left and right side walls of the fixed frame via bearings. The other end of the locking screw is rotatably inserted into the fixed frame via a bearing and is connected to the drive rod via a bevel gear pair.

[0008] A synchronizing rod is rotatably mounted inside the front side wall of the fixed frame via a bearing. The end of the synchronizing rod is connected to the drive rod via a bevel gear pair. The front end of the drive rod passes through the fixed frame and is fixedly mounted with a control handle.

[0009] Furthermore, a limiting screw is threaded through the control handle, with one end of the limiting screw inserted into a groove on the fixing frame.

[0010] Furthermore, limit blocks are fixedly installed on both the front and rear sides of the magnetic lifting ring, and strip-shaped limit grooves that cooperate with the limit blocks are opened on both the front and rear sides of the inner walls of the first and second mounting seats.

[0011] Furthermore, the positioning inner cone is provided with a first anti-slip texture, and the connecting block above it is provided with a second anti-slip texture.

[0012] Furthermore, a first reference line is provided on the inner cone of the positioning cylinder below the first anti-slip pattern, and a second reference line is provided on the connecting block above the second anti-slip pattern.

[0013] Compared with the prior art, the beneficial effects of this utility model are: the multi-directional centering and positioning structure of the injection mold frame described in this utility model not only realizes the synchronous automatic centering and precise positioning of the upper and lower mold frames in the horizontal and vertical directions during the mold closing process through the conical surface mating structure, effectively overcoming the limitations of the traditional guide pillar and guide sleeve unidirectional constraint, but also realizes the convenient loading and unloading of positioning components. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the structure of this utility model.

[0015] Figure 2 This is a cross-sectional view of the No. 2 mounting base in this utility model.

[0016] Figure 3 This is an exploded view of the No. 1 mounting base, the positioning inner cone, the connecting block, and the limiting block in this utility model.

[0017] Figure 4 This is an exploded view of the locking screw, fixing frame, synchronization control mechanism and limit screw in this utility model.

[0018] Explanation of reference numerals in the attached drawings: Mounting base 1, Mounting base 2, Upper mold frame, Lower mold frame, Positioning inner cone, Connecting block, Positioning cone, Spring, Magnetic lifting ring, Locking screw, Fixing frame, Synchronous control mechanism, Drive rod 12-1, Bevel gear pair 12-2, Synchronous rod 12-3, Control handle 12-4, Limiting screw, Groove 14, Limiting block, Strip-shaped limiting groove, Anti-slip texture 17, Anti-slip texture 2, Baseline 1, Baseline 2, Baseline 20. Detailed Implementation

[0019] The technical solutions of this utility model will be clearly and completely described below with reference to the accompanying drawings. The preferred embodiments described are only examples. All other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0020] like Figures 1-4 As shown, the specific embodiment adopts the following technical solution: it includes a first mounting base 1 and a second mounting base 2. The four first mounting bases 1 are respectively fixedly installed on the front and rear sides of the left and right side walls of the upper mold frame 3, and the four second mounting bases 2 are respectively fixedly installed on the front and rear sides of the left and right side walls of the lower mold frame 4.

[0021] It also includes:

[0022] The positioning inner cone 5 consists of four cones, which are movably inserted into four second mounting bases 2. A connecting block 6 is movably abutted in both the first mounting base 1 and the second mounting base 2. The positioning inner cone 5 is fixedly connected to the connecting block 6 below.

[0023] The positioning cone 7 consists of four cones, which are fixedly mounted on the connecting blocks 6 above the four cones. The positioning cone 7 is configured to cooperate with the positioning inner cone 5. Springs 8 are fixedly mounted in the first mounting base 1 and the second mounting base 2. A magnetic lifting ring 9 that attracts and abuts against the connecting block 6 is fixedly mounted at one end of the spring 8. Limiting blocks 15 are fixedly mounted on both the front and rear sides of the magnetic lifting ring 9. Strip-shaped limiting grooves 16 that cooperate with the limiting blocks 15 are opened on both the front and rear sides of the inner wall of the first mounting base 1 and the second mounting base 2. The limiting blocks 15 can limit the extreme range of motion of the magnetic lifting ring 9 in the first mounting base 1 or the second mounting base 2, so as to avoid the spring 8 being overstretched and damaged due to excessive magnetic attraction between the connecting block 6 and the magnetic lifting ring 9 when disassembling the positioning inner cone 5 or the positioning cone 7.

[0024] Eight locking screws 10 are provided, each rotatably inserted into four No. 1 mounting bases 1 and four No. 2 mounting bases 2 via bearings. One end of each locking screw 10 is rotatably inserted into a connecting block 6 via a thread. Fixing frames 11 are fixedly installed on both the upper mold frame 3 and the lower mold frame 4. The No. 1 mounting bases 1 and 2 mounting bases 2 are respectively fixedly installed on the upper and lower fixing frames 11. A synchronous control mechanism 12 connected to the locking screws 10 is provided on each fixing frame 11. The positioning inner cone 5 has a No. 1 anti-slip groove 17, and the upper connecting block 6 has a No. 2 anti-slip groove 18. The No. 1 anti-slip groove 17 and the No. 2 anti-slip groove 18... The anti-slip texture 18 can increase the friction generated when the hand contacts the positioning inner cone 5 and the upper connecting block 6 respectively, and prevent the hand from slipping during the disassembly of the positioning inner cone 5 and the positioning cone 7. The positioning inner cone 5 is provided with a first reference line 19 below the first anti-slip texture 17, and the upper connecting block 6 is provided with a second reference line 20 above the second anti-slip texture 18. When disassembling the positioning inner cone 5 and the positioning cone 7, the corresponding connecting block 6 can be identified by the cooperation of the first reference line 19 and the second reference line 20.

[0025] The synchronization control mechanism 12 includes:

[0026] The drive rod 12-1 consists of two rods, which are rotatably mounted in the left and right side walls of the fixed frame 11 via bearings. The other end of the locking screw 10 is rotatably inserted into the fixed frame 11 via a bearing and is connected to the drive rod 12-1 via a bevel gear pair 12-2.

[0027] Synchronous rod 12-3 is rotatably mounted in the front side wall of fixed frame 11 via bearing. The end of synchronous rod 12-3 is connected to drive rod 12-1 via bevel gear pair 12-2. The front end of drive rod 12-1 passes through fixed frame 11 and is fixedly mounted with control handle 12-4. Synchronous control mechanism 12 can realize synchronous control of four locking screws 10 on fixed frame 11, which can effectively improve the convenience of replacing multiple positioning inner cones 5 or positioning cones 7. A limit screw 13 is threaded through control handle 12-4. One end of limit screw 13 is inserted into the groove 14 opened on fixed frame 11. Limit screw 13 can limit control handle 12-4 and prevent the threaded connection of locking screw 10 to connecting block 6 from loosening due to vibration or other factors during mold closing.

[0028] When using this invention, the outer conical surface of the positioning cone 7 is inserted into the inner conical hole of the positioning inner cone 5. Utilizing the characteristics of the conical surface fit, it automatically corrects the horizontal deviation generated during the mold closing process of the upper and lower mold frames 4, achieving precise alignment and positioning. If long-term use leads to severe wear of the positioning cone 7 and the positioning inner cone 5, requiring replacement, the two control handles 12-4 can be rotated. The control handles 12-4 drive the connected drive rod 12-1 to rotate. The drive rod 12-1, through the cooperation of the bevel gear pair 12-2 and the synchronization rod 12-3, can... The four locking screws 10 on the fixed frame 11 rotate synchronously, so that the upper connecting block 6 can drive the positioning cone 7 to move downward, and the lower connecting block 6 can drive the positioning inner cone 5 to move upward. The spring 8 will also extend accordingly. When the first reference line 19 and the second reference line 20 are exposed, the locking screw 10 will disengage from the threaded connection with the connecting block 6. Then the positioning inner cone 5 and the positioning cone 7 can be removed, and the upper and lower connecting blocks 6 will disengage from the first mounting base 1 and the second mounting base 2 respectively. The magnetic lifting ring 9 will also disengage from the attraction and resistance of the connecting block 6.

[0029] During the installation of the positioning inner cone 5 and the positioning cone 7, the connecting block 6 connected to them can be inserted into the first mounting base 1 and the second mounting base 2 respectively. At this time, the magnetic lifting ring 9 will attract and abut against the connecting block 6, and through the force applied by the spring 8, one end of the locking screw 10 can abut against the threaded hole of the connecting block 6. Then, the control handle 12-4 is rotated in the opposite direction, and with the cooperation of the drive rod 12-1, the bevel gear pair 12-2 and the synchronizing rod 12-3, the locking screw 10 is rotated in the opposite direction, completing the installation of the positioning inner cone 5, the positioning cone 7 and the connecting block 6, and the spring 8 is also compressed.

[0030] Compared with the prior art, the beneficial effects of this utility model are:

[0031] By cooperating with the positioning cone 7 and the positioning inner cone 5, the horizontal deviation of the upper and lower mold bases 4 can be automatically corrected during mold closing. The precise centering and positioning can be achieved by utilizing the characteristics of the cone surface, which effectively enhances the accuracy of mold base positioning and ensures the molding quality of plastic parts.

[0032] With the cooperation of the synchronous control mechanism 12, rotating the control handle 12-4 will drive multiple locking screws 10 to rotate synchronously through the drive rod 12-1, the synchronous rod 12-3 and the bevel gear pair 12-2. This will cause the connecting block 6 to move the positioning cone 7 or the positioning inner cone 5. Combined with the visual judgment of the first reference line 19 and the second reference line 20, the threaded connection between the locking screw 10 and the connecting block 6 can be completed quickly. Worn parts can be removed without disassembling the surrounding components, which greatly simplifies the replacement process and reduces maintenance time.

[0033] The limiting block 15 restricts the movement of the magnetic lifting ring 9, which can prevent the spring 8 from being damaged by excessive stretching due to excessive magnetic attraction, thus improving the safety of the disassembly process.

[0034] During installation, the magnetic lifting ring 9 and the connecting block 6 are attracted and resisted by the spring 8 to ensure that the locking screw 10 and the threaded hole of the connecting block 6 are precisely aligned.

[0035] For those skilled in the art, modifications can be made to the technical solutions described in the foregoing embodiments, and equivalent substitutions can be made to some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A multi-directional centering and positioning structure for an injection mold frame, comprising a first mounting base (1) and a second mounting base (2), wherein four first mounting bases (1) are respectively fixedly disposed on the front and rear sides of the left and right side walls of the upper mold frame (3), and four second mounting bases (2) are respectively fixedly disposed on the front and rear sides of the left and right side walls of the lower mold frame (4); characterized in that, It also includes: a positioning inner cone (5), of which there are four positioning inner cones (5), which are respectively movably inserted into four No. 2 mounting bases (2), and a connecting block (6) is movably abutting inside both No. 1 mounting base (1) and No. 2 mounting base (2), and the positioning inner cone (5) is fixedly connected to the connecting block (6) below; a positioning cone (7), of which there are four positioning cones (7), which are respectively fixedly installed on the four upper connecting blocks (6), and the positioning cone (7) is configured to cooperate with the positioning inner cone (5), and a spring (8) is fixedly installed inside both No. 1 mounting base (1) and No. 2 mounting base (2), and one end of the spring (8) is fixed A magnetic lifting ring (9) is provided to adsorb and resist the connecting block (6); eight locking screws (10) are provided, which are respectively inserted into four No. 1 mounting seats (1) and four No. 2 mounting seats (2) through bearing rotation. One end of the locking screw (10) is inserted into the connecting block (6) through thread rotation. Fixing frames (11) are fixedly provided on the upper mold frame (3) and the lower mold frame (4). The No. 1 mounting seat (1) and the No. 2 mounting seat (2) are respectively fixedly provided on the upper and lower fixing frames (11). The fixing frame (11) is provided with a synchronous control mechanism (12) connected to the locking screw (10).

2. The multi-directional centering and positioning structure for an injection mold base according to claim 1, characterized in that: The synchronization control mechanism (12) includes: a drive rod (12-1), which consists of two drive rods (12-1), which are respectively rotatably mounted in the left and right side walls of the fixed frame (11) via bearings. The other end of the locking screw (10) is rotatably inserted into the fixed frame (11) via bearings and is connected to the drive rod (12-1) via bevel gear pair (12-2); a synchronization rod (12-3), which is rotatably mounted in the front side wall of the fixed frame (11) via bearings. The end of the synchronization rod (12-3) is connected to the drive rod (12-1) via bevel gear pair (12-2), and a control handle (12-4) is fixedly mounted on the front end of the drive rod (12-1) after passing through the fixed frame (11).

3. The injection mold base multi-directional centering and positioning structure according to claim 2, characterized in that: The control handle (12-4) is provided with a limiting screw (13) that is threaded through it. One end of the limiting screw (13) is inserted into a groove (14) on the fixing frame (11).

4. The multi-directional centering and positioning structure for an injection mold base according to claim 1, characterized in that: The magnetic lifting ring (9) is fixedly provided with limit blocks (15) on both the front and rear sides. The inner walls of the first mounting base (1) and the second mounting base (2) are provided with strip-shaped limit grooves (16) that cooperate with the limit blocks (15).

5. The multi-directional centering and positioning structure for an injection mold base according to claim 1, characterized in that: The positioning inner cone (5) is provided with a first anti-slip texture (17), and the connecting block (6) above is provided with a second anti-slip texture (18).

6. The multi-directional centering and positioning structure for an injection mold base according to claim 5, characterized in that: The positioning inner cone (5) has a first reference line (19) located below the first anti-slip pattern (17), and the connecting block (6) above it has a second reference line (20) located above the second anti-slip pattern (18).

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