Press-fit die suitable for automobile roofs with different thicknesses
By designing a pressing mold suitable for car roofs of different thicknesses, and by using movable stops and vertical limit blocks to adjust the mold spacing, the problem of needing two molds in the existing technology is solved, thus reducing factory space and initial investment.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-03-31
- Publication Date
- 2026-03-17
AI Technical Summary
Existing technologies require the use of separate pressing molds for thin and thick automotive roofs, resulting in large factory space requirements and high initial investment.
A pressing mold suitable for car roofs of different thicknesses was designed. By cooperating with movable stops and vertical limit blocks, the mold spacing can be adjusted to meet the pressing needs of car roofs of different thicknesses and reduce the number of molds.
This allows the same mold to be used for both thin and thick car roofs, reducing factory space requirements and initial investment.
Smart Images

Figure CN223998963U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of automobile roof manufacturing, and in particular to a pressing mold suitable for automobile roofs of different thicknesses. Background Technology
[0002] Car roofs are composed of multiple layers of fabric from top to bottom. Thin car roofs have three layers, while thick car roofs have four. Manufacturing thin car roofs requires a special pressing mold that presses the three layers of fabric together. After the upper and lower molds of the thin car roof pressing mold are closed, the gap between them is small, which is just right to accommodate the relatively small thickness of the thin car roof, thus applying appropriate pressure to press it into shape. Manufacturing thick car roofs requires a special pressing mold that presses the four layers of fabric together. After the upper and lower molds of the thick car roof pressing mold are closed, the gap between them is large, which is just right to accommodate the relatively large thickness of the thick car roof, thus applying appropriate pressure to press it into shape. The drawback of the existing technology is that when molding thin and thick car roofs separately, two special molding dies are required. These two special molding dies occupy two portions of factory space and cost two portions of initial investment, resulting in a large factory space and high initial investment. Utility Model Content
[0003] The present invention aims to provide a pressing mold suitable for car roofs of different thicknesses. This pressing mold can be used for both thin and thick car roofs, eliminating the need for two pressing molds, thereby reducing the factory space occupied and initial investment.
[0004] This is a pressing mold suitable for car roofs of different thicknesses. It includes an upper mold and a lower mold. The top wall of the lower mold is for stacking multiple layers of car roof fabric. The upper mold moves downward to press the multiple layers of car roof fabric into shape. A vertical stop is installed on the rear side wall of the lower mold. The top wall of the vertical stop is lower than the top wall of the lower mold. A vertical limit block is located directly above the vertical stop. The vertical limit block is installed on the rear side wall of the upper mold. The bottom wall of the vertical limit block is lower than the top wall of the upper mold. A movable stop that can move laterally is located on the top wall of the vertical stop. The vertical limit block moves downward as the upper mold moves downward until it is blocked by the top wall of the movable stop. This makes the distance between the bottom wall of the upper mold and the top wall of the lower mold suitable for pressing four layers of fabric for thick car roofs. When the movable stop moves laterally away from the top wall of the vertical stop, the vertical limit block moves downward as the upper mold moves downward until it is blocked by the top wall of the vertical stop. This makes the distance between the bottom wall of the upper mold and the top wall of the lower mold suitable for pressing three layers of fabric for thin car roofs.
[0005] Furthermore, it includes a horizontal cylinder that drives the movable stop block to move laterally away from the top wall of the vertical stop block.
[0006] Furthermore, a guide vertical block is installed on the rear side wall of the lower mold. The top wall of the guide vertical block is lower than the top wall of the lower mold. A guide vertical channel is opened on the top wall of the guide vertical block from top to bottom. A guide post is installed on the rear side wall of the upper mold. The bottom wall of the guide post is lower than the top wall of the upper mold. The guide post moves down into the guide vertical channel as the upper mold moves down, thereby guiding the upper mold.
[0007] Furthermore, with the bottom wall of the vertical limit block blocked by the top wall of the vertical stop block, the distance between the bottom wall of the upper mold and the top wall of the lower mold is 9mm.
[0008] Furthermore, with the bottom wall of the vertical limit block blocked by the top wall of the movable stop block, the distance between the bottom wall of the upper mold and the top wall of the lower mold is 12mm.
[0009] Furthermore, the guide vertical channel leads to the bottom wall of the guide vertical block, and the bottom wall of the guide column specifically enters the middle of the guide vertical channel.
[0010] Furthermore, it includes a controller and a pressure sensor, with the pressure sensor mounted on the bottom wall of the vertical limit block, and the controller connected to both the pressure sensor and the upper mold.
[0011] Furthermore, the movable stop has two layers, with the lower layer fixed to the drive rod of the horizontal cylinder, and the upper layer detachably mounted on the lower layer.
[0012] The beneficial effects are as follows: When pressing four layers of fabric for a thick car roof, the movable stop remains on the top wall of the vertical stop, and the vertical limit block moves downward with the upper mold until it is blocked by the top wall of the movable stop. At this point, the distance between the bottom wall of the upper mold and the top wall of the lower mold is relatively large, suitable for the total thickness of the four layers of fabric for a thick car roof. However, when pressing three layers of fabric for a thin car roof, the movable stop moves laterally away from the top wall of the vertical stop, and the vertical limit block moves downward with the upper mold until it is blocked by the top wall of the vertical stop. At this point, the distance between the bottom wall of the upper mold and the top wall of the lower mold is relatively small, suitable for the total thickness of the three layers of fabric for a thin car roof. In summary, this pressing mold can press both thick and thin car roofs, thus eliminating the need for two separate pressing molds, reducing factory space and initial investment. Attached Figure Description
[0013] Figure 1 This is a perspective view of the pressing mold provided in this utility model;
[0014] Figure 2 This is a rear view of the pressing mold provided by this utility model. In the figure, the pressing mold is prepared to press a thin car roof (not shown in the figure) into shape.
[0015] Figure 3 This is a rear view of the pressing mold provided by this utility model. In the figure, the pressing mold has pressed the thin car roof (not shown in the figure) into shape.
[0016] Figure 4 This is a rear view of the pressing mold provided by this utility model. In the figure, the pressing mold is prepared to press a thick car roof (not shown in the figure) into shape.
[0017] Figure 5 This is a rear view of the pressing mold provided by this utility model. In the figure, the pressing mold has pressed the thick car roof (not shown in the figure) into shape.
[0018] In the diagram: 1. Lower mold; 2. Upper mold; 3. Guide vertical block; 4. Guide vertical channel; 5. Vertical stop block; 6. Top wall of vertical stop block; 7. Horizontal plate; 8. Movable stop block; 9. Horizontal cylinder; 10. Vertical limit block; 11. Guide column; 12. Spacing. Detailed Implementation
[0019] The present invention will be further described in detail below with reference to specific embodiments.
[0020] like Figure 1 As shown, a guide vertical block 3 is mounted on the rear side wall of the lower mold 1. A guide vertical channel 4 is formed on the top wall of the guide vertical block 3, extending from top to bottom to the bottom wall of the guide vertical block 3. A vertical stop block 5 is mounted on the rear side wall of the lower mold 1 next to the guide vertical block 3. The top walls of both the vertical stop block 5 and the guide vertical block 3 are lower than the top wall of the lower mold 1. A horizontal plate 7 is mounted on the rear side wall of the lower mold 1 next to the top of the vertical stop block 5. The horizontal plate 7 is flush with the top walls of both the vertical stop block 5 and has a movable stop block 8 and a horizontal cylinder 9 mounted on it. A guide post 11 is mounted directly above the guide vertical channel 4 on the rear side wall of the upper mold 2. A vertical limit block 10 is mounted directly above the vertical stop block 5 on the rear side wall of the upper mold 2. A pressure sensor (not shown in the figure) is mounted on the bottom wall of the vertical limit block 10. A controller (not shown in the figure) is provided on the upper mold 2, and the controller is connected to both the pressure sensor and the upper mold 2. The bottom walls of both the guide pillar 11 and the vertical limit block 10 are at a lower height than the bottom wall of the upper mold 2.
[0021] like Figure 2 As shown, when manufacturing a thin car roof, the operator places the three layers of fabric (not shown in the figure) of the thin car roof onto the top wall of the lower mold 1. The upper mold 2 moves downward, causing the guide pillar 11 and the vertical limit block 10 to move downward as well. During the downward movement, the guide pillar 11 enters the guide vertical channel 4 to guide the upper mold 2. Then, by... Figure 2 become Figure 3When the vertical limit block 10 moves down to be blocked by the top wall 6 of the vertical stop block, the pressure sensor transmits a stop signal to the controller, which then controls the upper mold 2 to stop moving down. At this time, the distance 12 between the bottom wall of the upper mold 2 and the top wall of the lower mold 1 is 9mm, which is small enough to fit the total thickness of the three layers of fabric in a thin car roof. Therefore, in this state, the upper mold 2 has already pressed the three layers of fabric into a thin car roof. The bottom of the guide post 11 eventually moves to the middle of the guide vertical channel 4, meaning that the bottom wall of the guide post 11 is not obstructed during its downward movement and will not hinder the downward movement of the upper mold 2.
[0022] like Figure 4 As shown, when manufacturing a thick car roof, the operator places the four layers of fabric (not shown in the figure) of the thick car roof onto the top wall of the lower mold 1, and the movable stop 8 is driven by the horizontal cylinder 9 to move laterally onto the top wall 6 of the vertical stop. The upper mold 2 moves downward, causing the guide column 11 and the vertical limit block 10 to move downward. During the downward movement, the guide column 11 enters the guide vertical channel 4 to guide the upper mold 2. Then, by... Figure 4 become Figure 5 When the vertical limit block 10 moves down to be blocked by the top wall of the movable stop block 8, the pressure sensor transmits a stop signal to the controller, which then controls the upper mold 2 to stop moving down. At this time, the distance 12 between the bottom wall of the upper mold 2 and the top wall of the lower mold 1 is 12mm, which is relatively large and suitable for the total thickness of the four layers of fabric in a thick car roof. Therefore, in this state, the upper mold 2 has already pressed the four layers of fabric into a thick car roof. The bottom of the guide post 11 eventually moves to the middle of the guide vertical channel 4, meaning that the bottom wall of the guide post 11 is not obstructed during the downward movement and will not hinder the downward movement of the upper mold 2.
[0023] In a less preferred embodiment, the movable stop 8 has two layers, with the lower layer fixed to the drive rod of the transverse cylinder 9, and the upper layer detachably mounted on the lower layer to allow for the replacement of upper layers of different thicknesses, thus accommodating a wider range of car roof thicknesses.
[0024] The above description is merely an embodiment of this utility model and does not limit the scope of patent protection. Any non-substantial changes or substitutions made by those skilled in the art based on this utility model will still fall within the scope of patent protection.
Claims
1. A pressing mold suitable for car roofs of different thicknesses, comprising an upper mold (2) and a lower mold (1), wherein the top wall of the lower mold (1) is used for stacking multiple layers of car roof fabric, and the upper mold (2) moves down to press the multiple layers of car roof fabric into shape, characterized in that: The lower die (1) rear side wall is provided with a vertical block (5), the vertical block top wall (6) is lower than the height position of the lower die (1) top wall; the vertical block (5) is provided with a vertical limiting block (10) above, the vertical limiting block (10) is installed on the upper die (2) rear side wall, the vertical limiting block (10) bottom wall is lower than the height position of the upper die (2), the vertical block top wall (6) is provided with a movable block (8) that can move horizontally; the vertical limiting block (10) moves downward with the upper die (2) moving downward, until the movable block (8) top wall blocks, so that the distance (12) between the upper die (2) bottom wall and the lower die (1) top wall is suitable for pressing four layers of materials of thick car roof; the movable block (8) moves horizontally away from the vertical block top wall (6), then the vertical limiting block (10) moves downward with the upper die (2) moving downward, until the vertical block top wall (6) blocks, so that the distance (12) between the upper die (2) bottom wall and the lower die (1) top wall is suitable for pressing three layers of materials of thin car roof.
2. The press mold according to claim 1, wherein: Including a horizontal cylinder (9), which drives the movable block (8) to move horizontally away from the vertical block top wall (6).
3. The press mold according to claim 1, wherein: The lower die (1) rear side wall is provided with a guide vertical block (3), the guide vertical block (3) top wall is lower than the height position of the lower die (1) top wall, the guide vertical block (3) top wall is provided with a guide vertical channel (4) from top to bottom; the upper die (2) rear side wall is provided with a guide column (11), the guide column (11) bottom wall is lower than the height position of the upper die (2), the guide column (11) moves downward into the guide vertical channel (4) with the upper die (2) moving downward, thereby guiding the upper die (2).
4. The press mold according to claim 1, wherein: In the state that the vertical limiting block (10) bottom wall is blocked by the vertical block top wall (6), the distance (12) between the upper die (2) bottom wall and the lower die (1) top wall is 9mm.
5. The press mold according to claim 1, wherein: In the state that the vertical limiting block (10) bottom wall is blocked by the movable block (8) top wall, the distance (12) between the upper die (2) bottom wall and the lower die (1) top wall is 12mm.
6. The press mold according to claim 3, wherein: The guide vertical channel (4) leads to the guide vertical block (3) bottom wall, and the guide column (11) bottom wall specifically enters the middle part of the guide vertical channel (4).
7. The press mold according to claim 1, wherein: Including a controller and a pressure sensor, the pressure sensor is installed on the vertical limiting block (10) bottom wall, and the controller is connected with the pressure sensor and the upper die (2) respectively.
8. The press mold according to claim 2, wherein: The movable block (8) has two layers, the lower layer of which is fixedly connected with the driving rod of the horizontal cylinder (9), and the upper layer is detachably installed on the lower layer.