A small automotive brake disc casting mold

Abstract

This utility model belongs to the field of molds, specifically relating to a small automotive brake disc casting mold, including a base plate, a lower mold fixedly connected to the upper end of the base plate, a bracket fixedly connected to the upper end of the base plate, a mold closing mechanism mounted on the bracket, an upper mold mounted on the mold closing mechanism, an ejection mechanism mounted on the upper mold, and a pin fixedly connected to the lower end of the upper mold. This utility model uses the upper mold to drive a guide rod to move, which in turn causes a connecting plate to drive a spiral shaft to move upwards and engage with the guide pin, allowing the brake disc to rotate and move upwards within the lower mold after molding, thus making brake disc demolding more efficient and convenient.

Description

Technical Field

[0001] This utility model relates to the field of mold technology, specifically a small automobile brake disc casting mold. Background Technology

[0002] Utility model patent CN218361930U discloses a casting mold for automotive brake discs, including a housing. A side plate is fixedly connected to one side of the housing, and a water pump is fixedly connected to the top of the side plate. A water outlet pipe is fixedly connected to the output end of the water pump. A bottom pipe is provided, with a water outlet pipe fixedly connected to one end of the bottom pipe and a water pump fixedly connected to the other end. A water tank is fixedly connected to one side of the water pump. A tee is fixedly connected to the outside of the bottom pipe, and a vertical pipe is fixedly connected to the top of the tee. A return water pipe is fixedly connected to the other end of the bottom pipe, and a water tank is fixedly connected to one end of the return water pipe. Molten iron for casting brake discs is injected into the mold cavity from the pouring pipe. The water pump is turned on to draw water from the water tank into the bottom pipe. At the same time, the water flows through the vertical pipe via the tee and then flows back into the water tank through the return water pipe for cooling. This effectively removes the heat transferred from the inside of the mold cavity to the sand, effectively cooling the cast brake disc, reducing cooling time, and improving casting efficiency.

[0003] However, the device has certain shortcomings in use. When the mold is closed, the collision between the upper and lower molds can cause damage to the mold. Also, the brake disc is not easy to demold after it is formed. Utility Model Content

[0004] The purpose of this utility model is to provide a small automobile brake disc casting mold, which solves the problems of mold damage caused by collision between the upper and lower molds during mold closing, and the difficulty in demolding the brake disc after it is formed.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a small automobile brake disc casting mold, comprising a base plate, a lower mold fixedly connected to the upper end of the base plate, a bracket fixedly connected to the upper end of the base plate, a mold closing mechanism provided on the bracket, an upper mold provided on the mold closing mechanism, an ejection mechanism provided on the upper mold, and a pin fixedly connected to the lower end of the upper mold.

[0006] Preferably, the mold clamping mechanism includes a cylinder, the cylinder rod of which passes through the bracket and is slidably connected to the bracket. A sliding sleeve is connected to the outer side of the cylinder rod, and the sliding sleeve is fixedly connected to the upper mold. A spring is provided on the outer side of the sliding sleeve. By driving the cylinder rod to extend, the spring can elastically press the upper mold down. After the spring is compressed to its limit, the upper mold can be pressed tightly onto the lower mold, and the contact between the upper and lower molds can prevent collisions that could damage the mold.

[0007] Preferably, a sliding pin is fixedly connected to the surface of the cylinder rod, and the sliding pin and the sliding sleeve are slidably connected. By providing the sliding pin, rotation of the cylinder rod and the sliding sleeve is prevented.

[0008] Preferably, one end of the spring is fixedly connected to the cylinder rod of the cylinder, and the other end of the spring is fixedly connected to the upper mold. By setting the spring, the upper mold is elastically pressed down.

[0009] Preferably, the ejection mechanism includes a fixed plate, which is fixedly connected to the upper mold. A guide rod is slidably connected inside the fixed plate, a retaining ring is fixedly connected to the outer side of the guide rod, and a compression spring is provided on the outer side of the guide rod. The guide rod is slidably connected to the bottom plate, and a connecting plate is fixedly connected to the lower end of the guide rod. A helical shaft is installed inside the connecting plate via a bearing. The helical shaft is movably connected to the lower mold, and a top plate is fixedly connected to the upper end of the helical shaft. The upper mold drives the guide rod to move, which in turn causes the connecting plate to drive the helical shaft to move upward and cooperate with the guide pin, so that the brake disc rotates and moves upward within the lower mold after molding, thereby making the demolding of the brake disc more efficient and convenient.

[0010] Preferably, one end of the compression spring is fixedly connected to the fixing plate, and the other end of the compression spring is fixedly connected to the retaining ring. By setting the compression spring, the retaining ring is elastically pressed down.

[0011] Preferably, a guide pin is fixedly connected inside the lower mold, and the guide pin is slidably connected to the spiral shaft. By setting the guide pin, the spiral shaft can be controlled to rotate.

[0012] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0013] 1. This utility model uses a cylinder to drive the cylinder rod to extend, which in turn allows the spring to elastically press the upper mold down. After the spring is compressed to its limit, the upper mold can be pressed tightly onto the lower mold, and the contact between the upper and lower molds can prevent collisions that could damage the mold.

[0014] 2. This utility model uses the upper mold to drive the guide rod to move, which in turn causes the connecting plate to drive the spiral shaft to move upward and cooperate with the guide pin, so that the brake disc rotates and moves upward in the lower mold after being formed, thus making the brake disc demolding more efficient and convenient. Attached Figure Description

[0015] Figure 1 This is a perspective view of the overall structure of this utility model;

[0016] Figure 2 This utility model Figure 1 A sectional view;

[0017] Figure 3 This utility model Figure 2 Enlarged view of point A;

[0018] Figure 4 This utility model Figure 2 Enlarged view of point B.

[0019] In the diagram: 1. Base plate; 2. Lower mold; 3. Support; 4. Mold closing mechanism; 5. Upper mold; 6. Ejection mechanism; 7. Pin; 41. Cylinder; 42. Sliding sleeve; 43. Sliding pin; 44. Spring; 61. Fixing plate; 62. Guide rod; 63. Retaining ring; 64. Compression spring; 65. Connecting plate; 66. Spiral shaft; 67. Top plate; 68. Guide pin. Detailed Implementation

[0020] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0021] Please see Figures 1-2 A small automobile brake disc casting mold includes a base plate 1, a lower mold 2 fixedly connected to the upper end of the base plate 1, a bracket 3 fixedly connected to the upper end of the base plate 1, a mold closing mechanism 4 provided on the bracket 3, an upper mold 5 provided on the mold closing mechanism 4, an ejection mechanism 6 provided on the upper mold 5, and a pin 7 fixedly connected to the lower end of the upper mold 5.

[0022] Please see Figures 1-3 The mold clamping mechanism 4 includes a cylinder 41. The cylinder rod of the cylinder 41 passes through the bracket 3 and is slidably connected to the bracket 3. A sliding sleeve 42 is connected to the outside of the cylinder rod of the cylinder 41. The sliding sleeve 42 is fixedly connected to the upper mold 5. A sliding pin 43 is fixedly connected to the surface of the cylinder rod of the cylinder 41. The sliding pin 43 is slidably connected to the sliding sleeve 42. By setting the sliding pin 43, the rotation of the cylinder rod of the cylinder 41 and the sliding sleeve 42 is prevented. A spring 44 is set on the outside of the sliding sleeve 42. One end of the spring 44 is fixedly connected to the cylinder rod of the cylinder 41, and the other end of the spring 44 is fixedly connected to the upper mold 5. By setting the spring 44, the upper mold 5 is elastically pressed down. The cylinder rod is driven by the cylinder 41 to extend, so that the spring 44 can elastically press down the upper mold 5. After the spring 44 is compressed to its limit, the upper mold 5 can be pressed tightly onto the lower mold 2, and the contact between the upper mold 5 and the lower mold 2 can prevent collisions that could damage the mold.

[0023] Please see Figure 1 , Figure 2 , Figure 4The ejection mechanism 6 includes a fixed plate 61, which is fixedly connected to the upper mold 5. A guide rod 62 is slidably connected inside the fixed plate 61, and a retaining ring 63 is fixedly connected to the outer side of the guide rod 62. A compression spring 64 is provided on the outer side of the guide rod 62. One end of the compression spring 64 is fixedly connected to the fixed plate 61, and the other end is fixedly connected to the retaining ring 63. By providing the compression spring 64, the retaining ring 63 is elastically pressed down. The guide rod 62 is slidably connected to the base plate 1, and a connecting plate 65 is fixedly connected to the lower end of the guide rod 62. The inner side of the connecting plate 65... The lower mold 2 is movably connected to a spiral shaft 66 mounted on a bearing. A top plate 67 is fixedly connected to the upper end of the spiral shaft 66. A guide pin 68 is fixedly connected inside the lower mold 2. The guide pin 68 is slidably connected to the spiral shaft 66. By setting the guide pin 68, the spiral shaft 66 can be rotated. The upper mold 5 drives the guide rod 62 to move, which in turn causes the connecting plate 65 to drive the spiral shaft 66 to move upward and cooperate with the guide pin 68. This allows the brake disc to rotate and move upward within the lower mold 2 after molding, making the brake disc demolding more efficient and convenient.

[0024] The specific implementation process of this utility model is as follows: In use, the cylinder 41 is activated, and the cylinder rod is extended by the cylinder 41, which in turn allows the spring 44 to elastically press down the upper mold 5. After the spring 44 is compressed to its limit, the upper mold 5 can be pressed tightly onto the lower mold 2, and the contact between the upper mold 5 and the lower mold 2 can avoid collisions that could damage the mold. Then, injection liquid is injected into the lower mold 2 through the injection hole on the upper mold 5. After the brake disc is formed, the cylinder 41 drives the upper mold 5 to move, the upper mold 5 drives the guide rod 62 to move, the guide rod 62 drives the connecting plate 65 to move, the connecting plate 65 drives the spiral shaft 66 to move upward, the spiral shaft 66 moves upward and drives the top plate 67 to move upward. The rotation of the spiral shaft 66 and the cooperation of the guide pin 68 cause the top plate 67 to rotate, so that the brake disc rotates and moves upward in the lower mold 2 after being formed, thus making the demolding of the brake disc more efficient and convenient.

[0025] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A small automotive brake disc casting mold, comprising a base plate (1), characterized in that: The lower mold (2) is fixedly connected to the upper end of the base plate (1), and the bracket (3) is fixedly connected to the upper end of the base plate (1). A mold closing mechanism (4) is provided on the bracket (3), an upper mold (5) is provided on the mold closing mechanism (4), an ejection mechanism (6) is provided on the upper mold (5), and a pin (7) is fixedly connected to the lower end of the upper mold (5).

2. The small automobile brake disc casting mold according to claim 1, characterized in that: The mold closing mechanism (4) includes a cylinder (41), the cylinder rod of the cylinder (41) passes through the bracket (3) and is slidably connected to the bracket (3), a sliding sleeve (42) is connected to the outside of the cylinder rod of the cylinder (41), the sliding sleeve (42) is fixedly connected to the upper mold (5), and a spring (44) is provided on the outside of the sliding sleeve (42).

3. A small automotive brake disc casting mold according to claim 2, characterized in that: The cylinder rod surface of the cylinder (41) is fixedly connected to a sliding pin (43), and the sliding pin (43) and the sliding sleeve (42) are slidably connected.

4. A small automobile brake disc casting mold according to claim 2, characterized in that: One end of the spring (44) is fixedly connected to the cylinder rod of the cylinder (41), and the other end of the spring (44) is fixedly connected to the upper mold (5).

5. A small automobile brake disc casting mold according to claim 1, characterized in that: The ejection mechanism (6) includes a fixed plate (61), which is fixedly connected to the upper mold (5). A guide rod (62) is slidably connected inside the fixed plate (61). A retaining ring (63) is fixedly connected to the outside of the guide rod (62). A compression spring (64) is provided on the outside of the guide rod (62). The guide rod (62) is slidably connected to the bottom plate (1). A connecting plate (65) is fixedly connected to the lower end of the guide rod (62). A spiral shaft (66) is installed inside the connecting plate (65) through a bearing. The spiral shaft (66) is movably connected to the lower mold (2). A top plate (67) is fixedly connected to the upper end of the spiral shaft (66).

6. A small automotive brake disc casting mold according to claim 5, characterized in that: One end of the compression spring (64) is fixedly connected to the fixing plate (61), and the other end of the compression spring (64) is fixedly connected to the retaining ring (63).

7. A small automobile brake disc casting mold according to claim 5, characterized in that: The lower mold (2) is internally fixedly connected with a guide pin (68), and the guide pin (68) and the spiral shaft (66) are slidably connected.

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