Liftable triangular block

Abstract

The utility model discloses a liftable triangular block which comprises a die bottom plate, a hub lower die for supporting a hub is arranged in the center of the end of the die bottom plate, and triangular block bodies which are used for adjusting the height of a hub tire ring and are of a vertical triangular structure are arranged at the four corners of the end of the die bottom plate. The hub die is provided with four triangular blocks, the lifting screws are used for adjusting the lifting movable blocks, the lifting movable blocks and triangular block bodies are guided by seven guide columns, one ends of the guide columns are locked on the lifting movable blocks through the screws, the other ends of the guide columns are inserted into the triangular block bodies in a matched mode according to a 7H tolerance zone, and vertical movement can be achieved. Each triangular block body is provided with a fixed scale, when the height needs to be adjusted, a locking device on the lifting movable block is loosened to reversely tighten a screw, the lifting screw of the four triangular block bodies is simultaneously screwed to reach the required height, and after the height is consistent with the height of the movable scale, the purposes of locking and no shaking can be achieved by locking the reversely tightened screw.

Description

Technical Field

[0001] The utility model belongs to the technical field of hub molds, and particularly relates to a liftable triangular block. Background Art

[0002] Low-pressure hub molds are normally classified into OE OEM molds and retail market molds according to categories. Among them, the quantity of OEM molds is large, and basically the whole set of molds is used until they are scrapped. However, the quantity of retail market molds is small, usually only thousands or even hundreds. At this time, making the whole set of molds will cause great waste. It will also cause great waste to open the whole set of mold bases for molds with the same size but different bead heights. Usually, the mold consists of a mold base part and main body large parts, namely an upper mold, a lower mold, and a side mold. For different hub shapes, the upper mold, the lower mold, and the side mold must be made, but it is not necessary to make the mold base part completely.

[0003] However, in the existing hub molds, due to different bead heights, the heights of the side mold and the triangular block are also different. If a customer needs to open all sizes from 2065 to 2010 for 20-inch wheels (where 20 represents the wheel size is 20 inches, and the numbers from 65 cm to 10 cm, 20 cm to 10 cm represent the bead heights of the hub), then four sets of triangular blocks need to be opened, with four pieces in one set and 16 pieces in four sets. After each use of molds with different specifications, after the triangular blocks on the mold base plate are used up, the triangular blocks need to be removed and replaced with a matching height, which is time-consuming and laborious, and at the same time increases unnecessary costs and also causes great waste of resources. Summary of the Utility Model

[0004] The purpose of the utility model is to provide a liftable triangular block to solve the problems mentioned in the above background art.

[0005] To achieve the above purpose, the utility model provides the following technical solution: A liftable triangular block, comprising:

[0006] A mold base plate, at the central position of the end of the mold base plate, there is a hub lower mold for supporting the hub. At four corners of the end of the mold base plate, there are triangular block bodies for adjusting the height of the hub bead and having a vertical triangular structure. On the triangular block body, there is a lifting movable block vertically and slidably guided by a guide post. At the top of the triangular concave cavity outside the triangular block body, there is a lifting screw threadedly penetrating through for adjusting the lifting height of the lifting movable block.

[0007] A hub upper mold, the hub upper mold is pressed on the upper end of the hub lower mold. Outside the hub lower mold and on the four sides of the mold base plate, there is a hub side mold slidably arranged. The hub side mold is slidably limited by a side mold guiding strip on the side of the triangular block body arranged at the four corners of the mold base plate.

[0008] Preferably, a nut sleeve with an internal threaded hole is embedded at the end of the triangular block body, and the lifting screw threadedly passes upward from the triangular concave cavity in the triangular block body to the upper end outside the nut sleeve, so as to perform height jacking adjustment on the lifting movable block, so as to realize the adjustment of tire beads with different heights of the hub mold.

[0009] Preferably, the guide posts are uniformly penetrated and fixed on both sides of the lifting movable block, and there are seven guide posts penetrating through the lifting movable block. Reverse tightening screws are threadedly penetrated between the guide posts and on both sides of the lifting movable block, so that the lifting movable block can be accurately vertically adjusted in height through the guide posts.

[0010] Preferably, guide movable hole grooves for vertically guiding the lifting movable block by inserting one end of the guide post are uniformly arranged on both sides of the triangular surface at the end of the triangular block body, and reverse threaded holes for threadedly inserting one end of the reverse tightening screw for reverse locking are arranged between the guide movable hole grooves, so that the lifting movable block is reversely threadedly locked and fixed after height adjustment, strengthening the firm stability of the lifting movable block.

[0011] Preferably, fixed scales are vertically embedded on both side surfaces of the outside of the triangular block body, movable scales are vertically arranged on both sides of the outside of the lifting movable block, and the lower ends of the movable scales are attached to the scale lines on the surface of the fixed scales, so that the lifting movable block can be more accurately adjusted according to the scale by moving the movable scale on the fixed scale.

[0012] Preferably, guide strip grooves are formed on the side surfaces of the triangular block body corresponding to the hub side mold, and the hub side mold is slidably arranged on the guide strip grooves on the side surfaces of the triangular block body through side mold guide strip blocks, so that the hub side mold can slide.

[0013] Compared with the prior art, the technical effects and advantages of the present utility model are as follows: The liftable triangular block is composed of a lifting movable block, a reverse tightening screw, a lifting screw, seven guide posts, a scale and a replaceable nut sleeve. Considering the service life of the nut sleeve, it can be replaced at any time when it is damaged, so as to achieve the purpose of improving the service life. There are a total of four triangular blocks for the hub mold. The lifting screw is used to adjust the lifting movable block. The lifting movable block and the triangular block body are guided by seven guide posts. One end of the guide post is locked on the lifting movable block with a screw, and the other end is inserted into the triangular block body with a tolerance zone of 7H for up and down movement. Each triangular block body is equipped with a fixed scale. When the height needs to be adjusted, loosen the locking device on the lifting movable block and reverse tighten the screw. Rotate the lifting screws of the four triangular block bodies simultaneously to reach the required height. After the height is consistent with the moving scale, lock the reverse tightening screw to achieve the purpose of locking and non-shaking. Description of the Drawings

[0014] Figure 1Explosion structure schematic diagram of the utility model

[0015] Figure 2 Structure schematic diagram of the triangular block body and the lifting movable block of the utility model

[0016] Figure 3 Front view three-dimensional structure schematic diagram of the utility model

[0017] In the figure: 1. Mold bottom plate; 2. Hub lower mold; 3. Triangular block body; 4. Guide post; 5. Lifting movable block; 6. Lifting screw; 7. Hub upper mold; 8. Hub side mold; 9. Side mold guide strip; 10. Nut sleeve; 11. Reverse tightening screw; 12. Guide movable hole groove; 13. Reverse threaded hole; 14. Fixed scale; 15. Moving scale; 16. Guide strip groove Specific implementation mode

[0018] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present utility model

[0019] Please refer to Figures 1-3 , the present utility model provides a technical solution: a liftable triangular block, including:

[0020] A mold bottom plate 1, a hub lower mold 2 for supporting the hub is provided at the center position of the end of the mold bottom plate 1, and the hub lower mold 2 is fixed at the center position of the end of the mold bottom plate 1 by screws. And a hub forming cavity is provided at the end of the hub lower mold 2. Triangular block bodies 3 for adjusting the height of the hub tire bead and having a vertical triangular structure are provided at the four corners of the end of the mold bottom plate 1. The triangular block bodies 3 are fixed at the four corners of the end of the mold bottom plate 1 to guide the movement of the hub side mold 8 and adjust the height of the tire bead. A lifting movable block 5 is vertically and slidably provided on the triangular block body 3 through a guide post 4, and the height of the lifting movable block 5 can be adjusted to adjust the tire beads of different heights of the hub. A lifting screw 6 for adjusting the jacking height of the lifting movable block 5 is threadedly penetrated through the top of the triangular concave cavity on the outside of the triangular block body 3, so that the rotation of the lifting screw 6 jacks up the lifting movable block 5 for height and direction adjustment

[0021] The upper hub mold 7 is pressed on the upper end of the lower hub mold 2, so that the lower hub mold 2 and the upper hub mold 7 are combined to form the shape of the outer tire ring of the hub. On the outer side of the lower hub mold 2 and slidably arranged on the four side edges of the mold base plate 1 are hub side molds 8, so that the lower hub mold 2, the upper hub mold 7 and the hub side molds 8 are combined to form a hub forming cavity. The hub side molds 8 are limited and slide on the side surfaces of the triangular block bodies 3 arranged at the four corners of the mold base plate 1 through side mold guiding strip blocks 9, so that the hub side molds 8 slide between the triangular block bodies 3 to unload the formed hub.

[0022] A nut sleeve 10 with an internal threaded hole is embedded and installed at the end of the triangular block body 3, and the lifting screw 6 is threaded upward through the triangular concave cavity in the triangular block body 3 to the upper end outside the nut sleeve 10. Guide columns 4 are uniformly penetrated and fixed on the two side edges of the lifting movable block 5, and seven guide columns 4 are penetrated through the lifting movable block 5. Between the guide columns 4 and on the two side edges of the lifting movable block 5, reverse tightening screws 11 are threaded through. On the two side edges of the triangular surface at the end of the triangular block body 3, guide movable hole grooves 12 for allowing one end of the guide column 4 to be movably inserted to adjust the vertical guiding of the lifting movable block 5 are uniformly arranged, and between the guide movable hole grooves 12, reverse threaded holes 13 for allowing one end of the reverse tightening screw 11 to be threaded and inserted for reverse locking are arranged.

[0023] Fixed scales 14 are vertically embedded on the two side surfaces of the outside of the triangular block body 3, and movable scales 15 are vertically arranged on the two sides of the outside of the lifting movable block 5. The lower ends of the movable scales 15 are attached to the scale lines on the surface of the fixed scales 14. Guide strip grooves 16 are formed on the side surfaces of the triangular block body 3 corresponding to the hub side molds 8, and the hub side molds 8 are slidably arranged on the guide strip grooves 16 on the side surfaces of the triangular block body 3 through side mold guiding strip blocks 9, so that the hub side molds 8 are combined with the lower hub mold 2 and the upper hub mold 7.

[0024] Specifically, during use, first, the triangular block body 3 is vertically installed and fixed at the four corners of the end of the mold bottom plate 1. Seven guide posts 4 and two reverse tightening screws 11 are sequentially installed on the side of the lifting movable block 5, so that the guide posts 4 and the reverse tightening screws 11 pass through the lifting movable block 5 and are thread-fixed. At the same time, the guide posts 4 are guided and inserted into the guide movable holes 12 on the triangular block body 3 to play a guiding role in the adjustment of the height of the tire bead, ensuring the accuracy of the tire bead height adjustment, so that the tire beads of different height wheels can be adjusted to form the tire beads of the wheels, and there is no need to replace the wheel molds when processing different wheel tire beads. Subsequently, the reverse tightening screws 11 are reversely locked in the reverse threaded holes 13 to keep the position stable after the height of the lifting movable block 5 is adjusted. And the lifting screw 6 is threaded through the nut sleeve 10 to lift and lower the height of the lifting movable block 5. After adjustment, the position is locked by the reverse tightening screws 11. After that, the wheel side mold 8 is slidably arranged between the four triangular block bodies 3, and the bottom end is attached to the four side edges of the end of the mold bottom plate 1. Moreover, the side mold guide strip 9 on the wheel side mold 8 is slidably guided inside the guide strip groove 16 and cooperates with the wheel lower mold 2 and the wheel upper mold 7 to form the wheel. Finally, one end of the guide post 4 is locked on the lifting movable block 5 with screws, and the other end is inserted into the triangular block body 3 with a tolerance zone of H7, enabling up and down movement. Each triangular block body 3 is equipped with a fixed scale 14. When the height needs to be adjusted, loosen the locking device, the reverse tightening screws 11, on the lifting movable block 5, and simultaneously turn the lifting screws 6 of the four triangular block bodies 3 to the required height. After the height is consistent with the moving scale 15, lock the reverse tightening screws 11 to achieve the purpose of locking and non-shaking.

[0025] Finally, it should be noted that the above are only the preferred embodiments of the present invention and are not used to limit the present invention. Although the present invention has been described in detail with reference to the foregoing embodiments, for those skilled in the art, they can still modify the technical solutions described in the foregoing embodiments, or perform equivalent replacements for some of the technical features. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A liftable triangular block, characterized in that: include: A mold base plate (1), wherein a wheel hub lower mold (2) for supporting the wheel hub is provided at the center position of the end of the mold base plate (1), and a triangular block body (3) for adjusting the height of the wheel hub tire ring and having a vertical triangular structure is provided at the four corners of the end of the mold base plate (1), and a lifting movable block (5) is provided on the triangular block body (3) for vertically guiding and sliding through a guide column (4), and a lifting screw (6) for adjusting the lifting height of the lifting movable block (5) is provided through a thread at the top end of the triangular concave cavity on the outer side of the triangular block body (3); A wheel hub upper mold (7) is pressed onto the upper end of a wheel hub lower mold (2); a wheel hub side mold (8) is slidably provided on the outer side of the wheel hub lower mold (2) and located on the four sides of the mold base plate (1); the wheel hub side mold (8) is limitedly slidable on the side of a triangular block body (3) provided at the four corners of the mold base plate (1) via a side mold guide strip block (9).

2. The liftable triangular block according to claim 1, characterized in that: A nut sleeve (10) with an internal threaded hole is embedded in the end of the triangular block body (3), and a lifting screw (6) is threadedly passed upward from a triangular cavity in the triangular block body (3) to the outer upper end of the nut sleeve (10).

3. The liftable triangular block according to claim 1, characterized in that: The guide posts (4) are evenly penetrated and fixed on two sides of the lifting movable block (5), and seven guide posts (4) are penetrated on the lifting movable block (5). Reverse tightening screws (11) are threadedly penetrated between the guide posts (4) and on two sides of the lifting movable block (5).

4. The liftable triangular block according to claim 3, characterized in that: The two sides of the triangular surface at the end of the triangular block body (3) are evenly provided with guide movable hole grooves (12) for movably inserting one end of the guide column (4) to adjust the vertical guidance of the lifting movable block (5), and a reverse threaded hole (13) for threadably inserting one end of the reverse tightening screw (11) to perform reverse locking is provided between the guide movable hole grooves (12).

5. The liftable triangular block according to claim 1, characterized in that: Fixed scales (14) are vertically embedded on the two side surfaces of the outside of the triangular block body (3), and movable scales (15) are vertically arranged on the two sides of the outside of the lifting movable block (5), and the lower end of the movable scale (15) is attached to the scale line on the surface of the fixed scale (14).

6. The liftable triangular block according to claim 1, characterized in that: The side surfaces of the triangular block body (3) corresponding to the wheel hub side mold (8) are provided with guide strip grooves (16), and the wheel hub side mold (8) is slidably arranged on the guide strip grooves (16) on the side surfaces of the triangular block body (3) through the side mold guide strip blocks (9).

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