Injection mold with guiding and locking functions

By introducing components such as springs, sliding blocks, connecting plates and locking bevel blocks into the injection mold, the problem of the guide cylinder detaching when accidentally touched is solved, stable insertion and removal of the insert cylinder is achieved, and the stability and practicality of the operation are improved.

CN223326855UActive Publication Date: 2025-09-12QINGDAO ZHONGBANG PRECISION MOLD CO LTD
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Patent Information

Application Number
CN202520044468.4
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-01-09
Publication Date
2025-09-12
Estimated Expiration
2035-01-09

AI Technical Summary

Technical Problem

In existing injection molds, when the guide cylinder is accidentally touched by external force, it is easy to break away from the restriction, causing the guide cylinder to separate from the lower mold body, affecting the operational stability.

Method used

An injection mold with a guide locking function is designed. By setting components such as springs, sliding blocks, connecting plates, threaded rods and locking bevels, stable insertion and removal of the insert can be achieved to prevent accidental contact and disengagement. Moving friction strips and fixed friction strips are used to enhance the tightness of the fit.

Benefits of technology

This ensures that the insert does not separate from the lower mold chamber when accidentally touched, improves the stability and practicality of the operation, prevents separation caused by accidental touch, and enhances the overall stability and reliability.

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Abstract

The utility model relates to the technical field of injection molds, and discloses an injection mold with a guiding and locking function, which comprises a machine body, an upper mold assembly is arranged on the outer wall of the machine body, in daily use, when the upper mold assembly descends and is closed, a guide column can be inserted into an insertion cylinder, so that a guiding function is realized, and the guide locking function is realized. When scraps and the like accumulated in the inserting cylinder need to be cleaned, taken down and replaced, a threaded rod needs to be rotated firstly, a limited moving plate drives a mounting rod and an extrusion inclined block to move forwards, then a locking inclined block shrinks and is separated from a clamping groove, and then a connecting plate can be pulled; when the insertion cylinder is installed, the locking inclined block is limited in the clamping groove due to the fact that the extrusion inclined block does not extrude the locking inclined block, it is guaranteed that good stability can still be conducted when the connecting plate and the fixing sleeve are touched by the outside by mistake, and the insertion cylinder can be taken out after the fixing sleeve is separated from the fixing groove. And the insertion cylinder and the fixing sleeve are prevented from being separated from the lower die bin by external mistaken touch.
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Description

Technical Field

[0001] The utility model relates to the technical field of injection molds, in particular to an injection mold with a guide locking function. Background Art

[0002] An injection mold is a tool used to produce plastic products; it also gives them their precise structure and dimensions. Injection molding is a process used for mass production of complex parts. Specifically, it involves injecting heated, molten plastic into a mold cavity under high pressure using an injection molding machine. After cooling and solidification, the resulting plastic product is formed.

[0003] According to a publicly disclosed injection mold with a guide device (announcement number: CN221756718U), in order to facilitate the replacement of the guide cylinder and the guide column in the above application, the limit block can be removed from the top of the guide column by rotating the limit block, thereby releasing the limit on the guide column. By pulling the pull block, the stop block can be removed from the top of the guide cylinder, releasing the limit on the guide cylinder, and the guide cylinder can be taken out of the groove, making it convenient for the staff to operate.

[0004] However, during actual use, although the above-mentioned device can provide smooth and normal guidance, when the block that limits the guide cylinder is accidentally touched by external force, the guide cylinder will be out of the restriction, and then the guide cylinder will be separated from the lower membrane body; in view of this, we propose an injection mold with a guide locking function. Utility Model Content

[0005] The purpose of the present invention is to provide an injection mold with a guide locking function to solve the problems raised in the above background technology.

[0006] To achieve the above-mentioned object, the utility model provides the following technical solution: an injection mold with a guide locking function, comprising a body, an upper mold assembly is provided on the outer wall of the body, a guide column is provided on the outer wall of the upper mold assembly, a lower mold bin is provided on the outer wall of the body, a spring 1 is provided on the inner wall of the lower mold bin, an insert cylinder is detachably mounted on the end of the spring 1, an anti-touch assembly is provided on the outer wall of the lower mold bin, the anti-touch assembly comprises a spring 2, the spring 2 is fixedly connected to the inner wall of the lower mold bin, the end of the spring 2 is fixedly connected to a sliding block, the outer wall of the sliding block is fixedly connected to a connecting plate, the outer wall of the connecting plate is fixedly connected to a fixing sleeve, the inner wall of the fixing sleeve is fixedly connected to an elastic telescopic plate, and the outer wall of the elastic telescopic plate is fixedly connected to an elastic telescopic pile;

[0007] A locking bevel block is fixedly connected to the end of the elastic telescopic pile, a threaded rod is rotatably installed on the outer wall of the connecting plate, the outer wall of the threaded rod is threadedly connected to the movable plate, the outer wall of the movable plate is fixedly connected to the mounting rod, the outer wall of the mounting rod is fixedly connected to the extrusion bevel block, the outer wall of the insert is provided with a fixing groove, and the inner wall of the fixing groove is provided with a card slot.

[0008] Preferably, the center line of the connecting plate is on the same straight line as the center line of the fixing sleeve and the center line of the elastic expansion plate.

[0009] Preferably, the outer wall of the fixing sleeve is matched with the inner wall of the fixing groove, so that the fixing sleeve can be smoothly inserted into the fixing groove.

[0010] Preferably, the elastic telescopic piles are provided in a plurality of groups, and the plurality of groups of elastic telescopic piles are mirror-imaged on both sides of the central plane of the elastic telescopic plate.

[0011] Preferably, the outer wall of the locking bevel block is provided with a fixing assembly, and the fixing assembly includes a movable friction strip, and the movable friction strip is fixedly connected to the outer wall of the locking bevel block, and the inner wall of the slot is fixedly connected with a fixed friction strip.

[0012] Preferably, the movable friction strips are provided in a plurality of numbers, and the plurality of movable friction strips are arranged in a linear array on the outer wall of the locking bevel, so that they can rub against the fixed friction strips to achieve a better fixing effect.

[0013] Compared with the prior art, the present invention provides an injection mold with a guide locking function, which has the following beneficial effects:

[0014] 1. The injection mold with a guide locking function, during daily use, when the upper mold assembly is lowered and closed, the guide column can be inserted into the insert tube to achieve a guiding effect. When debris accumulated inside the insert tube needs to be cleaned, removed and replaced, it is necessary to first rotate the threaded rod so that the limited movable plate drives the installation rod and the extrusion bevel block to move forward, and then the locking bevel block is contracted and disengaged from the slot, and then the connecting plate can be pulled, and the fixing sleeve can be disengaged from the fixing slot and the insert tube can be taken out. When installing the insert tube, the locking bevel block is restricted in the slot because the extrusion bevel block does not squeeze the locking bevel block, thereby ensuring that the connecting plate and the fixing sleeve can still be well stabilized when accidentally touched by the outside world, and preventing the insert tube and the fixing sleeve from being separated from the lower mold bin when accidentally touched by the outside world.

[0015] 2. The injection mold with a guide locking function, through the provision of a movable friction strip and a fixed friction strip, can make the locking bevel block fit more tightly with the slot when it is inserted into the slot, thereby further stably restricting the locking bevel block in the slot, and ultimately further improving the overall practicality. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is a schematic diagram of the overall structure of the utility model;

[0017] Figure 2 This is a schematic diagram of the insert structure of the utility model;

[0018] Figure 3 This is an enlarged view of area A of the utility model;

[0019] Figure 4 This is a schematic diagram of the structure of a spring of the utility model;

[0020] Figure 5 This is a schematic diagram of the structure of the sliding block of the utility model;

[0021] Figure 6 This is a schematic diagram of the fixing groove structure of the utility model;

[0022] Figure 7 This is an enlarged schematic diagram of area B of the present utility model;

[0023] Figure 8 This is a schematic diagram of the structure of the fixing sleeve and the threaded rod of the utility model;

[0024] Figure 9 This is a schematic diagram of the structure of the mounting rod and the extrusion oblique block of the utility model.

[0025] In the figure: 1. Machine body; 2. Upper mold assembly; 3. Guide column; 4. Lower mold chamber; 5. Spring 1; 6. Insert cylinder; 7. Anti-touch assembly; 701. Spring 2; 702. Sliding block; 703. Connecting plate; 704. Fixed sleeve; 705. Elastic telescopic plate; 706. Elastic telescopic pile; 707. Locking bevel block; 708. Threaded rod; 709. Moving plate; 710. Mounting rod; 711. Extrusion bevel block; 712. Fixed groove; 713. Card slot; 8. Fixed assembly; 801. Moving friction strip; 802. Fixed friction strip. DETAILED DESCRIPTION

[0026] like Figures 1-9As shown, the utility model provides a technical solution: an injection mold with a guide locking function, comprising a body 1, an upper mold assembly 2 is provided on the outer wall of the body 1, a guide column 3 is provided on the outer wall of the upper mold assembly 2, a lower mold bin 4 is provided on the outer wall of the body 1, a spring 1 5 is provided on the inner wall of the lower mold bin 4, an insert sleeve 6 is detachably installed on the end of the spring 1 5, an anti-touch component 7 is provided on the outer wall of the lower mold bin 4, the anti-touch component 7 comprises a spring 2 701, the spring 2 701 is fixedly connected to the inner wall of the lower mold bin 4, the end of the spring 2 701 is fixedly connected to a sliding block 702, the outer wall of the sliding block 702 is fixedly connected to a connecting plate 703, the outer wall of the connecting plate 703 is fixedly connected to a fixing sleeve 704, the inner wall of the fixing sleeve 704 is fixedly connected to an elastic telescopic plate 705, and the outer wall of the elastic telescopic plate 705 is fixedly connected to an elastic telescopic pile 706.

[0027] Furthermore, the locking bevel 707 is fixedly connected to the end of the elastic telescopic pile 706, the outer wall of the connecting plate 703 is rotatably installed with a threaded rod 708, the outer wall of the threaded rod 708 is threadedly connected to a movable plate 709, the outer wall of the movable plate 709 is fixedly connected to a mounting rod 710, the outer wall of the mounting rod 710 is fixedly connected to an extrusion bevel 711, the outer wall of the insert 6 is provided with a fixing groove 712, and the inner wall of the fixing groove 712 is provided with a card groove 713.

[0028] In an embodiment of the present invention, the center line of the connecting plate 703 is on the same straight line as the center line of the fixing sleeve 704 and the center line of the elastic telescopic plate 705. The outer wall of the fixing sleeve 704 is adapted to the inner wall of the fixing groove 712, so that the fixing sleeve 704 can be smoothly inserted into the fixing groove 712. The elastic telescopic piles 706 are arranged in several groups, and the several groups of elastic telescopic piles 706 are arranged on both sides with the center plane of the elastic telescopic plate 705 mirrored.

[0029] In addition, a fixing component 8 is provided on the outer wall of the locking bevel 707, and the fixing component 8 includes a movable friction strip 801, which is fixedly connected to the outer wall of the locking bevel 707, and the inner wall of the card slot 713 is fixedly connected to the fixed friction strip 802. There are several movable friction strips 801, and several movable friction strips 801 are arranged in a linear array on the outer wall of the locking bevel 707, so that they can rub against each other with the fixed friction strip 802 to achieve a better fixing effect.

[0030] When the locking cam 711 is in the closed position, the locking cam 710 is in the closed position, and the locking cam 711 is in the open position, so that the locking cam 710 is not in the open position, and the locking cam 711 is in the open position, so that the locking cam 710 is in the open position, and the locking cam 711 is in the open position, so that the locking cam 710 is in the open position, and the locking cam 711 is in the open position, so that the locking cam 710 is in the open position, so that the locking cam 711 is in the open position, so that the locking cam 711 is in the open position, so that the locking cam 710 is in the open position, and the locking cam 711 is in the open position, so that the locking cam 710 is in the open position, so that the locking cam 711 is in the open position, so that the locking cam 710 is in the open position,

[0031] In addition, by providing the movable friction strip 801 and the fixed friction strip 802, when the locking bevel 707 is inserted into the slot 713, the locking bevel 707 and the slot 713 can be more tightly fitted, thereby further stably restricting the locking bevel 707 in the slot 713, thereby further improving the overall practicality.

[0032] The above generally describes the present invention in detail. However, it is obvious to those skilled in the art that modifications or improvements may be made to the present invention. Therefore, modifications or improvements that do not depart from the spirit of the present invention are within the scope of protection of the present invention.

Claims

1. An injection mold with a guide locking function, comprising a body (1), an upper mold assembly (2) provided on the outer wall of the body (1), a guide column (3) provided on the outer wall of the upper mold assembly (2), a lower mold bin (4) provided on the outer wall of the body (1), a spring (5) provided on the inner wall of the lower mold bin (4), an insert (6) being detachably mounted on the end of the spring (5), characterized in that: The outer wall of the lower mold bin (4) is provided with an anti-touch component (7), and the anti-touch component (7) comprises: Spring 2 (701), said spring 2 (701) is fixedly connected to the inner wall of the lower mold bin (4), the end of said spring 2 (701) is fixedly connected to a sliding block (702), the outer wall of said sliding block (702) is fixedly connected to a connecting plate (703), the outer wall of said connecting plate (703) is fixedly connected to a fixing sleeve (704), the inner wall of said fixing sleeve (704) is fixedly connected to an elastic telescopic plate (705), and the outer wall of said elastic telescopic plate (705) is fixedly connected to an elastic telescopic pile (706); A locking bevel (707) is fixedly connected to the end of the elastic telescopic pile (706); a threaded rod (708) is rotatably mounted on the outer wall of the connecting plate (703); a movable plate (709) is threadedly connected to the outer wall of the threaded rod (708); a mounting rod (710) is fixedly connected to the outer wall of the movable plate (709); an extrusion bevel (711) is fixedly connected to the outer wall of the mounting rod (710); a fixing groove (712) is provided on the outer wall of the insert (6); and a clamping groove (713) is provided on the inner wall of the fixing groove (712).

2. The injection mold with a guide locking function according to claim 1, characterized in that: The center line of the connecting plate (703), the center line of the fixing sleeve (704), and the center line of the elastic expansion plate (705) are all on the same straight line.

3. The injection mold with a guide locking function according to claim 1, characterized in that: The outer wall of the fixing sleeve (704) is adapted to the inner wall of the fixing groove (712).

4. The injection mold with a guide locking function according to claim 1, characterized in that: The elastic telescopic piles (706) are provided in a number of groups, and the groups of elastic telescopic piles (706) are mirror-imaged on both sides of the center plane of the elastic telescopic plate (705).

5. The injection mold with a guide locking function according to claim 1, characterized in that: The outer wall of the locking bevel block (707) is provided with a fixed assembly (8), and the fixed assembly (8) includes a movable friction strip (801). The movable friction strip (801) is fixedly connected to the outer wall of the locking bevel block (707), and the inner wall of the slot (713) is fixedly connected to a fixed friction strip (802).

6. The injection mold with a guide locking function according to claim 5, characterized in that: The movable friction strips (801) are provided in a plurality, and the plurality of movable friction strips (801) are arranged in a linear array on the outer wall of the locking bevel (707).

Citation Information

Patent Citations

  • Injection mold with guide device

    CN221756718U