Expansion and contraction type convex hull pressing die for rim

Abstract

The utility model discloses a rim expansion and contraction type convex hull pressing die, which relates to the technical field of wheel dies and comprises a fixed die, a movable die is arranged above the fixed die, sliding rails which extend upwards and penetrate through the movable die are fixed on two sides of the top end of the fixed die, a top plate is mounted at the top ends of the sliding rails, and the movable die is fixed on the top plate. A hydraulic cylinder used for driving the movable mold is arranged at the bottom end of the top plate, jarring plates used for jarring the fixed mold are arranged at the bottoms of the outer walls of the two sides of the fixed mold in an attached mode, and driving structures are installed on the outer walls of the jarring plates. According to the utility model, by arranging the jarring plate and the driving structure, the fixed die can be jarred in a reciprocating high-frequency manner through the jarring plate during discharging, so that a bonding point is damaged, the discharging is easier, and the production efficiency is further improved.

Description

Technical Field

[0001] The utility model relates to the technical field of wheel molds, in particular to a convex bulge mold for expanding and contracting a wheel rim. Background Technique

[0002] A wheel is a rigid wheel that fixes the inner edge of a tire, supports the tire, and jointly bears the load with the tire. The combined tire, rim, and spoke are also collectively called a wheel, and a wheel assembly is composed of two major components: a wheel and a tire.

[0003] There are various production methods for the wheel rim of a wheel, including casting, forging, or mold forming, etc. The mold used for the wheel rim of a wheel is generally a convex bulge mold for expanding and contracting. This mold can well adapt to the wheel rim and carry out high-quality production. However, in the prior art, this mold still has the common problem of the mold, that is, it is easy to cause difficult discharging due to the bonding points of the remaining materials when discharging. Therefore, we propose a convex bulge mold for expanding and contracting a wheel rim that can assist in discharging. Content of the Utility Model

[0004] Based on this, the purpose of the utility model is to provide a convex bulge mold for expanding and contracting a wheel rim to solve the technical problems mentioned in the above background.

[0005] To achieve the above purpose, the utility model provides the following technical solution: A convex bulge mold for expanding and contracting a wheel rim, including a fixed mold. Above the fixed mold, a moving mold is arranged. On both sides of the top end of the fixed mold, sliding rails extending upward and passing through the moving mold are fixed. At the top end of the sliding rails, a top plate is installed. At the bottom end of the top plate, a hydraulic cylinder for driving the moving mold is arranged. At the bottom of the outer walls on both sides of the fixed mold, shock plates for shocking the fixed mold are closely arranged. On the outer wall of the shock plate, a driving structure is installed.

[0006] By adopting the above technical solution, during discharging, the fixed mold can be shocked by the reciprocating high-frequency shock of the shock plate to break the bonding points, so that discharging becomes easier, and thus the production efficiency is improved.

[0007] The utility model is further arranged as follows: The driving structure includes a driven plate fixed on the outer wall of the shock plate. Inside the driven plate, multiple groups of driven blocks are arranged at intervals. Above the driven plate, on the outer wall of the moving mold, a pressing plate is fixed. On the outer wall of the pressing plate, multiple groups of pressing blocks are fixed at intervals. On the inner end face of the shock plate, multiple reset springs installed inside the fixed mold are connected.

[0008] By adopting the above technical solution, it has the effect of assisting the shock plate to reset.

[0009] The utility model is further arranged as follows: A guide plate is also arranged outside the fixed mold. On the outer wall of the shock plate, a synchronous rod extending into the guide plate is fixedly connected.

[0010] By adopting the above technical solution, the limiting effect on the shock plate is achieved.

[0011] The utility model is further configured such that a sliding plate is slidably connected in the guide plate, and the end of the synchronous rod is fixedly connected to the outer wall of the sliding plate. An expansion rod is installed at the side of the moving mold above the guide plate, and a driving rod capable of moving into the guide plate and driving the sliding plate to move is fixedly connected to the outer wall of the output end of the expansion rod.

[0012] By adopting the above technical solution, the sliding effect of the auxiliary driving rod is achieved.

[0013] The utility model is further configured such that a guiding partition for guiding the movement of the driving rod is provided on one side of the sliding plate inside the guide plate, a first sliding groove is formed on one side of the guiding partition, and a second sliding groove is formed on the other side of the guiding partition.

[0014] By adopting the above technical solution, the guiding and sliding effect of the driving rod is achieved.

[0015] In summary, the utility model mainly has the following beneficial effects:

[0016] 1. By providing a shock plate and a driving structure, first, the moving mold is driven by a hydraulic cylinder to fit with the fixed mold under the action of the slide rail, and then the forming production of the wheel rim can be carried out. After the production is completed, the moving mold will move upward to reset. At this time, the movement of the moving mold will drive the driving plate to move synchronously. After the driving plate moves, the extrusion block at its end will extrude the driven block at the end of the driven plate. After being extruded, the driven block will drive the driven plate to move outward, that is, drive the shock plate to move outward and stretch the return spring. When the extrusion block moves to not contact the driven block, the shock plate will reset under the action of the return spring, thereby realizing the shock on the fixed mold. The reciprocating action of multiple driven blocks and extrusion blocks realizes the high-frequency shock of the shock plate on the fixed mold, which is beneficial to destroying the bonding points, making the discharge of the fixed mold easier, that is, improving the production efficiency;

[0017] 2. By providing a guide plate, a synchronizing rod, a telescopic rod, a driving rod, a sliding plate, a guiding partition plate and a sliding groove, in order to prevent the moving die from triggering the shock plate during the downward movement and achieve the effect of protecting the shock plate, we have set up a guiding structure to limit the movement of the shock plate. Specifically, when the moving die moves downward, the driving rod at the bottom of the moving die will first move into the guide plate, and under the guidance of the guiding partition plate, it will slide into the first sliding groove and squeeze the sliding plate to move. The movement of the sliding plate will drive the shock plate to move outward through the synchronizing rod, thus avoiding the contact between the driven block and the extrusion block, that is, realizing the movement limitation of the shock plate. When the driving rod moves to the bottom end of the guiding partition plate, since there is a return gap at the bottom end of the guiding partition plate, the driving rod will move to the bottom of the second sliding groove under the action of the telescopic rod. At this time, the shock plate resets, and when the moving die moves upward, the movement of the driving rod in the second sliding groove will not affect the sliding plate, that is, it will not affect the shock plate, and can ensure the normal operation of the shock plate. Description of the Drawings

[0018] Figure 1 is a schematic diagram of the overall structure of the present utility model;

[0019] Figure 2 is a schematic diagram of the shock structure of the present utility model;

[0020] Figure 3 is a side view of the present utility model;

[0021] Figure 4 is a schematic diagram of the internal structure of the guide plate of the present utility model.

[0022] In the figure: 1. Fixed die; 2. Moving die; 3. Slide rail; 4. Top plate; 5. Hydraulic cylinder; 6. Shock plate; 7. Driven plate; 8. Driven block; 9. Return spring; 10. Extrusion plate; 11. Extrusion block; 12. Guide plate; 13. Synchronizing rod; 14. Telescopic rod; 15. Driving rod; 16. Sliding plate; 17. Guiding partition plate; 18. First sliding groove; 19. Second sliding groove. Detailed Embodiment

[0023] 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. The embodiments described below by referring to the drawings are exemplary and are only used to explain the present utility model, and should not be construed as a limitation to the present utility model.

[0024] Next, the embodiments of the present utility model will be described according to the overall structure of the present utility model.

[0025] A wheel rim expansion and contraction type convex die, as Figures 1-4As shown in the figure, it includes a fixed mold 1. Above the fixed mold 1, a movable mold 2 is arranged. On both sides of the top end of the fixed mold 1, slide rails 3 extending upward and passing through the movable mold 2 are fixed. At the top end of the slide rails 3, a top plate 4 is installed. At the bottom end of the top plate 4, a hydraulic cylinder 5 for driving the movable mold 2 is arranged. At the bottom of both outer walls of the fixed mold 1, shock plates 6 for shocking the fixed mold 1 are attached. On the outer wall of the shock plates 6, a driving structure is installed;

[0026] Furthermore, in this embodiment, the driving structure includes a driven plate 7 fixed on the outer wall of the shock plate 6. Inside the driven plate 7, multiple groups of driven blocks 8 are arranged at intervals. Above the driven plate 7, an extrusion plate 10 is fixed on the outer wall of the movable mold 2. On the outer wall of the extrusion plate 10, multiple groups of extrusion blocks 11 are fixed at intervals. On the inner end face of the shock plate 6, multiple reset springs 9 installed inside the fixed mold 1 are connected;

[0027] Please refer to Figures 3-4 , a guide plate 12 is further arranged outside the fixed mold 1. A synchronous rod 13 extending into the guide plate 12 is fixedly connected to the outer wall of the shock plate 6. A sliding plate 16 is slidably connected in the guide plate 12. The end of the synchronous rod 13 is fixedly connected to the outer wall of the sliding plate 16 to realize the limitation of the shock plate 6;

[0028] Please refer to Figures 3-4 , above the guide plate 12, a telescopic rod 14 is installed on the side of the movable mold 2. On the outer wall of the output end of the telescopic rod 14, a driving rod 15 capable of moving into the guide plate 12 and driving the sliding plate 16 to move is fixedly connected. Inside the guide plate 12, on one side of the sliding plate 16, a guide partition 17 for guiding the movement of the driving rod 15 is arranged. On one side of the guide partition 17, a first chute 18 is opened, and on the other side of the guide partition 17, a second chute 19 is opened to realize that the shock plate 6 does not act when the movable mold 2 descends and the operation of the shock plate 6 when the movable mold 2 moves upward for reset;

[0029] The working principle of the present utility model is as follows: First, the hydraulic cylinder 5 is used to drive the movable mold 2 to fit with the fixed mold 1 under the action of the slide rails 3, and then the forming production of the wheel rim can be carried out;

[0030] After the production is completed, the movable mold 2 will move upward for reset. At this time, the movement of the movable mold 2 will drive the driving plate 10 to move synchronously. After the driving plate 10 moves, the extrusion block 11 at its end will squeeze the driven block 8 at the end of the driven plate 7. After being squeezed, the driven block 8 will drive the driven plate 7 to move outward, that is, drive the shock plate 6 to move outward and stretch the reset spring 9. When the extrusion block 11 moves to not contact the driven block 8, the shock plate 6 will reset under the action of the reset spring 9, thereby realizing the shock of the fixed mold 1. The reciprocating action of multiple groups of driven blocks 8 and extrusion blocks 11 realizes the high-frequency shock of the shock plate 6 to the fixed mold 1, which is beneficial to destroying the bonding points, making the discharging of the fixed mold 1 easier, that is, improving the production efficiency;

[0031] Further, in order to prevent the moving mold 2 from triggering the shock plate 6 during the downward movement and achieve the effect of protecting the shock plate 6, we set up a guiding structure to limit the movement of the shock plate 6. Specifically, when the moving mold 2 moves downward, the driving rod 15 at the bottom of the moving mold 2 will first move into the guiding plate 12, and slide into the first sliding groove 18 under the guidance of the guiding partition 17 and squeeze the sliding plate 16 to move. The movement of the sliding plate 16 will drive the shock plate 6 to move outward through the synchronous rod 13, thus avoiding the contact between the driven block 8 and the extrusion block 11, that is, realizing the movement limitation of the shock plate 6;

[0032] When the driving rod 15 moves to the bottom end of the guiding partition 17, since there is a return gap at the bottom end of the guiding partition 17, the driving rod 15 will move to the bottom of the second sliding groove 19 under the action of the telescopic rod 14. At this time, the shock plate 6 resets, and when the moving mold 2 moves upward, the movement of the driving rod 15 in the second sliding groove 19 will not affect the sliding plate 16, that is, will not affect the shock plate 6, and can ensure the normal operation of the shock plate 6.

[0033] Although the embodiments of the present invention have been shown and described, the specific embodiments are only explanations of the present invention, and they are not limitations on the invention. The specific features, structures, materials or characteristics described can be combined in a suitable manner in any one or more embodiments or examples. After reading this specification, those skilled in the art can, without departing from the principles and purposes of the present invention, make modifications, substitutions and variations that do not contribute creatively to the embodiments as needed, but as long as they are within the scope of the claims of the present invention, they are protected by the patent law.

Claims

1. A wheel rim expansion and contraction type convex humping die, comprising a fixed die (1), characterized in that: A movable mold (2) is arranged above the fixed mold (1), and slide rails (3) extending upward and penetrating the movable mold (2) are fixed on both sides of the top of the fixed mold (1), a top plate (4) is installed on the top of the slide rail (3), and a hydraulic cylinder (5) for driving the movable mold (2) is arranged at the bottom of the top plate (4), and shock plates (6) for shocking the fixed mold (1) are fitted at the bottom of the outer walls of both sides of the fixed mold (1), and a driving structure is installed on the outer wall of the shock plate (6).

2. A wheel rim expansion and contraction type convex hump pressing die according to claim 1, characterized in that: The driving structure comprises a driven plate (7) fixed to the outer wall of the shock plate (6), and a plurality of groups of driven blocks (8) distributed at intervals are arranged on the inner side of the driven plate (7).

3. A wheel rim expansion and contraction type convex hull pressing die according to claim 2, characterized in that: An extrusion plate (10) is fixed to the outer wall of the movable mold (2) above the driven plate (7), and a plurality of groups of extrusion blocks (11) distributed at intervals are fixed to the outer wall of the extrusion plate (10).

4. A wheel rim expansion and contraction type convex hull pressing die according to claim 1, characterized in that: The inner end surface of the shock plate (6) is connected to a plurality of groups of return springs (9) installed inside the fixed mold (1).

5. The wheel rim expansion and contraction type convex hull pressing die according to claim 1, characterized in that: A guide plate (12) is also provided on the outer side of the fixed mold (1), and a synchronization rod (13) extending into the guide plate (12) is fixedly connected to the outer wall of the shock plate (6).

6. A wheel rim expansion and contraction type convex hull pressing die according to claim 5, characterized in that: A slide plate (16) is slidably connected to the guide plate (12), and the end of the synchronization rod (13) is fixedly connected to the outer wall of the slide plate (16). A telescopic rod (14) is installed above the guide plate (12) and on the side of the movable mold (2), and a driving rod (15) capable of moving into the guide plate (12) and driving the slide plate (16) to move is fixedly connected to the outer wall of the output end of the telescopic rod (14).

7. A wheel rim expansion and contraction type convex hull pressing die according to claim 6, characterized in that: A guide baffle (17) for guiding the movement of the drive rod (15) is provided inside the guide plate (12) and located on one side of the slide plate (16), and a first slide groove (18) is provided on one side of the guide baffle (17), while a second slide groove (19) is provided on the other side of the guide baffle (17).

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