Rim stretching forming die

Abstract

The utility model discloses a rim stretch forming die, which relates to the die field, and comprises a front die plate and a rear die plate, one side of the front die plate is provided with a plurality of groups of guide pillars, the rear die plate is provided with corresponding guide pillar holes, the guide pillar holes are internally and elastically provided with pressing plates, and the guide pillar holes are internally provided with oil rings. An oil groove is formed in the rear mold plate, an oil pipe is communicated between the oil groove and the oil ring, a stand column is arranged in the pressing plate, and a push plate is arranged in the oil groove in a sliding mode. The guide pillars are inserted into the guide pillar holes of the rear mold plate, so that the pressing plate moves inwards, meanwhile, the pressing plate is driven to slide inwards under the action of the stand columns, and in the process, lubricant in the oil groove can be extruded into the oil ring through the oil pipe under the action of the supporting rods and the push plate; and at the moment, the lubricant seeping from the oil ring is smeared on the outer wall of the guide pillar, so that the guide pillar can be lubricated once in each mold opening and closing process.

Description

Technical Field

[0001] The utility model relates to the field of molds, in particular to a wheel rim stretching and forming mold. Background Art

[0002] The wheel rim is also called the hub. The most common way to upgrade the car wheel rim is to replace it with an aluminum alloy wheel rim, or to use a larger wheel rim to improve the performance and appearance of the car. On some small carts, many wheel rims are made of plastic to reduce weight and make the cart more convenient to move.

[0003] The Chinese patent with announcement number CN216152886 U provides a PU foam wheel rim molding mold. By setting a lifting mechanism, a transmission mechanism and a pumping mechanism, the output shaft of the power motor is driven to rotate during demolding, which drives the threaded rod to rotate, so that the upper mold threadedly connected to it moves upward. While the threaded rod rotates, the rotating rod rotates under the drive of the belt, and the rotation of the rotating rod drives the cam to rotate. Under the action of the spring, the piston moves back and forth in the second cavity, and the gas is pumped into the groove body from the one-way air outlet valve, so as to blow the wheel rim in the groove body, thereby accelerating the curing speed of the wheel rim.

[0004] However, in order to prevent the guide pin and the guide pin hole from getting stuck during actual use, the above structure needs to be manually lubricated on the guide pin regularly, which wastes too much manpower and material resources. In addition, if the lubricant is not applied in time after the mold has been working for a period of time, it will affect the opening and closing of the mold, thereby reducing the overall production rate. Utility Model Content

[0005] Based on this, the purpose of the utility model is to provide a wheel rim stretching forming die to solve the technical problem that lubricant needs to be manually applied to the guide column regularly during the mold production process, which wastes too much manpower and material resources and reduces the overall production rate.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a wheel rim stretching forming mold, comprising a front template and a rear template, an array of guide pillars are arranged on one side of the front template, and corresponding guide pillar holes are arranged on the rear template, a pressure plate is elastically arranged in the guide pillar hole, and an oil ring is installed in the guide pillar hole, an oil groove is opened on one side of the guide pillar hole on the rear template, and an oil pipe is connected between the oil groove and the oil ring, a column is arranged inside the pressure plate, and a push plate cooperating with the column is slidably arranged in the oil groove.

[0007] By adopting the above technical solution, during the process of closing the front template and the rear template, the guide post will be driven to insert into the guide post hole of the rear template. During this process, the guide post will squeeze the pressure plate in the guide post hole, causing the pressure plate to move inward. At the same time, the pressure plate is driven to slide inward under the action of the column. During this process, the lubricant in the oil tank can be squeezed into the oil ring through the oil pipe under the action of the support rod and the push plate. At this time, the lubricant seeping out of the oil ring will be smeared on the outer wall of the guide post, thereby realizing lubrication of the guide post every time the mold is opened and closed, and there is no need to manually stop the machine for manual lubrication during this process.

[0008] The utility model is further configured that an array of nozzles is arranged on the inner wall of the oil ring, and the nozzles themselves are arranged to be inclined downward.

[0009] By adopting the above technical solution, when the push plate slides to both sides, the lubricating oil in the oil groove will be pushed into the oil ring through the oil pipe. Under the action of the nozzle on the oil ring, the lubricating oil is evenly sprayed onto the outer wall of the guide column, thereby achieving uniform coating of the lubricating oil on the outer wall of the guide column. At the same time, since the nozzle itself is arranged to be inclined downward, the bottom end of the guide column will also be lubricated during the insertion of the guide column.

[0010] The utility model is further configured that a compression spring is arranged in the guide post hole, and the other end of the compression spring is connected to the pressure plate.

[0011] By adopting the above technical solution, the pressure plate will be squeezed when the guide post is inserted into the guide post hole. During this process, the compression spring at the bottom of the pressure plate will be in a compressed state. Later, when the front template drives the guide post to slide out of the guide post hole, the pressure plate is reset and slid by the restoring force of the compression spring itself, so that the push plate is reset in the oil groove, and the excess lubricating oil in the oil ring is re-extracted into the oil groove through the action of the oil pipe, so that it can be reused.

[0012] The utility model is further configured that the bottom end of the column is located in the oil tank and is connected to a slide plate, and a support rod is symmetrically hinged at the bottom of the slide plate, and the other end of the support rod is hinged to the push plate.

[0013] By adopting the above technical solution, when the pressure plate drives the column to slide downward, the column will cause the bottom slide plate to move downward together, and the push plate will slide in the oil tank under the action of the support rod, thereby realizing the discharge of the lubricating oil in the oil tank to one side.

[0014] The utility model is further configured that a sealing ring is provided on the outer wall of the push plate.

[0015] By adopting the above technical solution, under the action of the sealing ring, it is ensured that the lubricating oil in the oil groove is discharged into the oil pipe on one side during the sliding process of the push plate.

[0016] The utility model is further configured such that two ends of the oil pipe are respectively sealed with the oil ring and the oil groove.

[0017] By adopting the above technical solution, the sealing arrangement effectively prevents oil leakage from occurring at the oil ring and the oil groove, further improving the overall operating stability of the device.

[0018] The utility model is further configured that a limiting mechanism for sliding of the pressure plate is arranged in the guide post hole.

[0019] By adopting the above technical solution, the pressure plate is made to slide horizontally in the guide post hole under the action of the limiting mechanism, thereby preventing the pressure plate from tilting during the sliding process.

[0020] The utility model is further configured such that the outer wall of the guide post and the inner wall of the guide post hole are both configured to be smooth.

[0021] By adopting the above technical solution, the smooth setting reduces the sliding friction between the two, effectively preventing the guide post and the guide post hole from getting stuck.

[0022] In summary, the utility model mainly has the following beneficial effects:

[0023] The utility model provides an oil ring and a pressure plate in the guide post hole. During the process of closing the front template and the rear template, the guide post will be driven to insert into the guide post hole of the rear template. During this process, the guide post will squeeze the pressure plate in the guide post hole, causing the pressure plate to move inward. At the same time, the pressure plate is driven to slide inward under the action of the column. During this process, the lubricant in the oil groove can be squeezed into the oil ring through the oil pipe under the action of the support rod and the push plate. At this time, the lubricant seeping out of the oil ring will be smeared on the outer wall of the guide post, thereby realizing lubrication of the guide post every time the mold is opened and closed. During this process, there is no need to stop the machine for manual lubrication, which saves a lot of manpower and material resources and improves the overall production efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 It is a three-dimensional diagram of the utility model;

[0025] Figure 2 It is the front view of the utility model;

[0026] Figure 3 It is a cross-sectional view of the guide post hole of the utility model;

[0027] Figure 4 For this utility model Figure 3 A is an enlarged view of the middle image.

[0028] In the figure: 1. front template; 2. rear template; 3. guide column; 4. guide column hole; 5. oil ring; 6. oil pipe; 7. pressure plate; 8. compression spring; 9. oil groove; 10. column; 11. push plate; 12. slide plate; 13. support rod. DETAILED DESCRIPTION

[0029] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. The embodiments described below with reference to the drawings are exemplary and are only used to explain the utility model, and cannot be understood as limiting the utility model.

[0030] The following describes an embodiment of the utility model based on its overall structure.

[0031] Embodiment 1

[0032] A wheel rim stretching forming die, such as Figure 1-Figure 4 As shown, it includes a front template 1, a rear template 2, a sealing mechanism, a lubrication mechanism and a reset mechanism, wherein an array of guide pillars 3 are arranged on one side of the front template 1, and a corresponding guide pillar hole 4 is arranged on the rear template 2. In the process of reciprocating mold opening and closing between the front template 1 and the rear template 2, the guide pillar 3 will reciprocate in the guide pillar hole 4, and at the same time, a pressure plate 7 is elastically arranged in the guide pillar hole 4, and a column 10 is arranged inside the pressure plate 7. The bottom end of the column 10 is located in the oil groove 9 and is connected to a slide plate 12, and a support rod 13 is symmetrically hinged at the bottom of the slide plate 12, and the other end of the support rod 13 is hinged to the push plate 11. In the process of the pressure plate 7 driving the column 10 to slide downward, the column 10 will cause the bottom slide plate 12 to move downward together. The push plate 11 slides in the oil groove 9 under the action of the support rod 13, thereby discharging the lubricating oil in the oil groove 9 to one side, and an oil ring 5 is installed in the guide column hole 4, wherein an oil groove 9 is opened on one side of the guide column hole 4 on the rear template 2, and an oil pipe 6 is connected between the oil groove 9 and the oil ring 5. Under the action of the support rod 13 and the push plate 11, the lubricant in the oil groove 9 can be squeezed into the oil ring 5 through the oil pipe 6. At this time, the lubricant seeping out of the oil ring 5 will be smeared on the outer wall of the guide column 3, thereby realizing that the guide column 3 is lubricated once in the process of each opening and closing of the mold. In this process, there is no need to manually stop the machine for manual lubrication, which saves a lot of manpower and material resources and improves the overall production efficiency.

[0033] See also Figure 3A compression spring 8 is arranged in the hole of the guide column 3, and the other end of the compression spring 8 is connected to the pressure plate 7. When the guide column 3 is inserted into the guide column hole 4, the pressure plate 7 will be squeezed. During this process, the compression spring 8 at the bottom of the pressure plate 7 will be in a compressed state. Later, when the front template 1 drives the guide column 3 to slide out of the guide column hole 4, the pressure plate 7 is reset and slid by the restoring force of the compression spring 8 itself, so that the push plate 11 is reset in the oil groove 9, and the excess lubricating oil in the oil ring 5 is re-extracted into the oil groove 9 under the action of the oil pipe 6, so that it can be reused.

[0034] See also Figure 3 and Figure 4 The two ends of the oil pipe 6 are sealed with the oil ring 5 and the oil groove 9 respectively. The sealed setting effectively prevents oil leakage from the oil ring 5 and the oil groove 9, further improving the overall operation stability of the device. At the same time, a limiting mechanism for the sliding of the pressure plate 7 is provided in the guide column hole 4. Under the action of the limiting mechanism, the pressure plate 7 slides horizontally in the guide column hole 4 to prevent it from tilting during the sliding process.

[0035] Embodiment 2

[0036] like Figure 3 A wheel rim stretching forming die is shown, and its overall structure is similar to that of the first embodiment, wherein an array of nozzles is arranged on the inner wall of the oil ring 5, and the nozzles themselves are arranged at an angle downward. When the push plate 11 slides to both sides, the lubricating oil in the oil groove 9 is pushed into the oil ring 5 through the oil pipe 6. Under the action of the nozzles on the oil ring 5, the lubricating oil is evenly sprayed onto the outer wall of the guide column 3, thereby achieving uniform coating of the lubricating oil on the outer wall of the guide column 3. At the same time, since the nozzles themselves are arranged at an angle downward, the bottom end of the guide column 3 is also lubricated during the insertion process of the guide column 3.

[0037] The working principle of the utility model is as follows: when in use, the front template 1 and the rear template 2 are driven by the injection molding machine to open and close the mold. During this process, the guide column 3 on the front template 1 will be inserted into the guide column hole 4 on the rear template 2, and the guide column 3 will squeeze the pressure plate 7 in the guide column hole 4. During this process, the pressure plate 7 will squeeze the compression spring 8 at the bottom and drive the column 10 to slide to the bottom, and with the cooperation of the slide plate 12 and the push plate 11, the lubricating oil in the oil groove 9 is discharged outwardly. Since the two sides of the oil groove 9 are connected with the oil ring 5 through the oil pipe 6, the lubricating oil in the oil groove 9 is discharged into the oil ring 5. At this time, the lubricant seeping out of the oil ring 5 will be smeared on the outer wall of the guide column 3, thereby realizing that the guide column 3 is lubricated once during each mold opening and closing process.

[0038] Although an embodiment of the utility model has been shown and described, this specific embodiment is only an explanation of the utility model and is not a limitation of the utility model. The specific features, structures, materials or characteristics described may be combined in a suitable manner in any one or more embodiments or examples. After reading this specification, those skilled in the art may make modifications, substitutions and variations to the embodiments without creative contribution as needed without departing from the principles and purpose of the utility model. However, as long as they are within the scope of the claims of the utility model, they are protected by patent law.

Claims

1. A wheel rim stretching mold, comprising a front mold plate (1) and a rear mold plate (2), characterized in that: An array of guide posts (3) is provided on one side of the front template (1), and a corresponding guide post hole (4) is provided on the rear template (2); a pressure plate (7) is elastically provided in the guide post hole (4), and an oil ring (5) is installed in the guide post hole (4); an oil groove (9) is provided on one side of the guide post hole (4) on the rear template (2), and an oil pipe (6) is connected between the oil groove (9) and the oil ring (5); a column (10) is provided inside the pressure plate (7), and a push plate (11) is slidably provided in the oil groove (9) and cooperates with the column (10).

2. A wheel rim stretching forming die according to claim 1, characterized in that: An array of nozzles is arranged on the inner wall of the oil ring (5), and the nozzles themselves are arranged in an inclined manner downward.

3. A wheel rim stretching forming die according to claim 1, characterized in that: A compression spring (8) is arranged in the guide post hole (4), and the other end of the compression spring (8) is connected to the pressure plate (7).

4. A wheel rim stretching forming die according to claim 1, characterized in that: The bottom end of the column (10) is located in the oil tank (9) and is connected to a slide plate (12), and a support rod (13) is symmetrically hinged at the bottom of the slide plate (12), and the other end of the support rod (13) is hinged to the push plate (11).

5. A wheel rim stretching forming die according to claim 1, characterized in that: The outer wall of the push plate (11) is provided with a sealing ring.

6. A wheel rim stretching forming die according to claim 1, characterized in that: Both ends of the oil pipe (6) are respectively arranged in a sealed manner with the oil ring (5) and the oil groove (9).

7. A wheel rim stretching forming die according to claim 1, characterized in that: A limiting mechanism for sliding the pressure plate (7) is arranged in the guide post hole (4).

8. A wheel rim stretching forming die according to claim 1, characterized in that: The outer wall of the guide post (3) and the inner wall of the guide post hole (4) are both arranged in a smooth shape.

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