Door leaf ventilation hole punching forming die

Abstract

The utility model discloses a door leaf vent hole punching forming die, which belongs to the technical field of door leaf forming and sequentially comprises an upper mounting plate, a cutter component, an upper die, a lower die and a lower mounting plate from top to bottom, the upper mounting plate is connected with the lower mounting plate through a guide sleeve and a guide column, the upper die is connected with the cutter component through a spring, and the cutter component is connected with the lower mounting plate through a spring. The door leaf is located between the upper die and the lower die. The tool assembly comprises a bottom plate and tool bits, the multiple tool bits are arrayed on the bottom plate, the side, away from the tool bits, of the bottom plate is fixed to the upper mounting plate, matched through holes are formed in the positions, corresponding to the tool bits, of the upper die, the lower die and the lower mounting plate, a prismatic table is arranged at the bottom of the through hole of the upper die, and the prismatic table is arranged at the bottom of the through hole of the lower die. A prismatic groove matched with the prismatic table is formed in the top of the through hole of the lower die; an initial positioning assembly and a continuous punching positioning assembly are arranged on the side, located on the door leaf discharging side, of the lower mounting plate. The punching device is high in punching efficiency, the vent holes are attractive, and meanwhile the distance between the vent holes is guaranteed through the positioning assembly.

Description

Technical Field

[0001] This utility model belongs to the field of door leaf forming technology, and in particular relates to a door leaf ventilation hole punching forming mold. Background Technology

[0002] Door panels with evenly spaced openings are widely available on the market. The main functions of punching holes in door panel panels include:

[0003] 1. Aesthetics and personalization: Perforated design can make the door panel look more beautiful. Different hole arrangements and designs can increase the artistic and design sense of the door panel.

[0004] 2. Ventilation and heat dissipation: The perforated design facilitates air circulation, especially in environments that require ventilation, such as kitchens or bathrooms, which can effectively dissipate heat and maintain air circulation.

[0005] 3. Reduce weight: By punching holes in the door panel, the weight of the material can be reduced, making the door panel lighter.

[0006] The current method for punching door panels is as follows: the formed door panel is fed into the punching mold, and the cutting tool is pressed down by the hydraulic cylinder to complete the punching at the corresponding position of the door panel.

[0007] However, when multiple holes need to be punched in a door panel, it is necessary to move the door panel, repeat the cutting process, and perform multiple punching operations. Existing molding dies lack positioning components, often requiring manual pushing of the door panel a certain distance after one punching operation before the next punching operation. This can easily lead to differences in the hole spacing between adjacent punching operations, causing errors.

[0008] At the same time, existing door panels have increasingly higher requirements for the aesthetics of their openings, such as... Figure 1 As shown, the edge of the opening on the front of the door leaf is a concave frustum shape. Existing punching dies can only complete the punching in one go and cannot form this shape. Utility Model Content

[0009] The purpose of this utility model is to provide a punching mold for ventilation holes in door panels to solve the problems existing in the background art.

[0010] The objective of this utility model is achieved through the following technical solution:

[0011] A door leaf ventilation hole punching forming mold includes, from top to bottom, an upper mounting plate, a cutting tool assembly, an upper mold, a lower mold and a lower mounting plate. The upper mounting plate and the lower mounting plate are connected by a guide sleeve and a guide post. The upper mold and the cutting tool assembly are connected by a spring. The door leaf is located between the upper mold and the lower mold.

[0012] The cutting tool assembly includes a base plate and cutting heads. Multiple cutting heads are arrayed on the base plate. The side of the base plate away from the cutting heads is fixed to the upper mounting plate. The upper mold, lower mold, and lower mounting plate are all provided with corresponding through holes at the positions of the cutting heads. The bottom of the through hole of the upper mold is provided with a frustum, and the top of the through hole of the lower mold is provided with a groove that mates with the frustum.

[0013] The lower mounting plate is located on the side of the door leaf outlet and is equipped with an initial positioning component and a continuous punching positioning component.

[0014] Furthermore, the initial positioning component includes a screw and an adjusting nut. The adjusting nut is fixed to the outside of the lower mounting plate by a support rod. The screw is threadedly engaged with the adjusting nut. The screw is used to limit the position of the door leaf during initial punching.

[0015] Furthermore, the continuous punching positioning assembly includes a sleeve, a locking screw, and a positioning block. The cross-sectional dimensions of the positioning block are the same as those of the through hole. One end of the positioning block is fixed to the top of the inner cylinder of the sleeve, and the bottom of the outer cylinder of the sleeve is fixed to the lower mounting plate. The height of the positioning block is adjusted by the sleeve. The locking screw is threaded into the outer cylinder of the sleeve and is used to fix the height of the sleeve. The distance between the positioning block and the adjacent through hole is the same as the distance between two adjacent rows of cutting heads.

[0016] Furthermore, the cross-sectional areas of the base plate, upper mold, and lower mold are specified. The four springs are located at the four corners of the base plate, with one end of each spring connected to the base plate and the other end connected to the upper mold.

[0017] Furthermore, the cutter head has a square column structure, and the cross-sectional dimensions of the through hole are adapted to the cross-sectional dimensions of the cutter head.

[0018] Furthermore, the guide sleeve and the guide post are slidably coupled, the guide sleeve is fixed on the upper mounting plate, and the guide post is fixed on the lower mounting plate.

[0019] Furthermore, a hydraulic cylinder is provided at the top of the upper mounting plate, and a support column is provided at the bottom of the lower mounting plate.

[0020] The beneficial effects of this utility model are:

[0021] 1) The punching die can not only complete the punching, but also modify the shape of the outer edge of the ventilation hole of the door leaf by cooperating with the upper and lower dies, thus improving the aesthetics.

[0022] 2) The initial positioning component facilitates the positioning of the door leaf during the first punching, avoiding subsequent errors.

[0023] 3) The continuous punching positioning component ensures that the diameter of the ventilation hole is the same after two adjacent punchings, thus ensuring the aesthetics of the ventilation hole. Attached Figure Description

[0024] Figure 1 This is a three-dimensional schematic diagram of a door leaf ventilation hole punching mold according to the present invention;

[0025] Figure 2 This is an exploded view of the upper mounting half, the cutting tool assembly, and the upper mold in this utility model;

[0026] Figure 3 This is an exploded view of the lower mold and lower mounting plate in this utility model;

[0027] Figure 4 This is a cross-sectional view of the upper and lower molds in this utility model;

[0028] Figure 5 This is a schematic diagram of the operation of the initial positioning component in this utility model;

[0029] Figure 6 This is a schematic diagram of the continuous punching positioning component in this utility model.

[0030] Figure 7 This is a front view of a door ventilation hole punching mold according to the present invention;

[0031] In the diagram, 1-upper mounting plate, 21-base plate, 22-cutter head, 3-upper mold, 31-frustum, 4-lower mold, 41-groove, 5-lower mounting plate, 51-through hole, 52-support column, 6-door leaf, 7-spring, 81-guide sleeve, 82-guide column, 91-screw, 92-adjusting nut, 93-positioning block, 94-sleeve, 95-locking screw. Detailed Implementation

[0032] The technical solution of this utility model will be clearly and completely described below with reference to the embodiments. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0033] See Figures 1-7 This utility model provides a technical solution:

[0034] like Figures 1-7 As shown, a door leaf ventilation hole punching forming mold includes, from top to bottom, an upper mounting plate, a cutting tool assembly, an upper mold, a lower mold and a lower mounting plate. The upper mounting plate and the lower mounting plate are connected by a guide sleeve and a guide post. The upper mold and the cutting tool assembly are connected by a spring. The door leaf is located between the upper mold and the lower mold.

[0035] The cutting tool assembly includes a base plate and cutting heads. Multiple cutting heads are arrayed on the base plate. The side of the base plate away from the cutting heads is fixed to the upper mounting plate. The upper mold, lower mold, and lower mounting plate are all provided with corresponding through holes at the positions of the cutting heads. The bottom of the through hole of the upper mold is provided with a frustum, and the top of the through hole of the lower mold is provided with a groove that mates with the frustum.

[0036] The lower mounting plate is located on the side of the door leaf outlet and is equipped with an initial positioning component and a continuous punching positioning component.

[0037] The above technical solution involves feeding the door leaf into a punching mold via a conveying assembly. Under the action of a top hydraulic cylinder, the upper mounting plate, cutting tool assembly, and upper mold move as a whole towards the lower mold. The truncated pyramid of the upper mold first abuts against the door leaf, and the cooperation of the pyramid and groove forms an aesthetically pleasing pyramid shape at the edge of the ventilation hole in the door leaf. As the upper mounting plate, cutting tool assembly, and upper mold continue to press down, the upper mold presses the door leaf firmly against the lower mold, and the upper mold stops moving. The cutting tool assembly compresses the spring, causing the cutting head to pass through the through hole in the upper mold to punch a hole in the door leaf. The lower mold and lower mounting plate have through holes corresponding to the cutting head position to facilitate the downward pressing of the cutting head, thereby completing the punching and forming of the ventilation hole in the door leaf. The punching mold can not only complete the punching but also refine the shape of the outer edge of the ventilation hole in the door leaf, improving its aesthetics.

[0038] Meanwhile, before the door leaf is first punched, the door leaf is positioned by the initial positioning component to avoid deviation; after the door leaf completes a set of punches by the cutting tool component, the position of the door leaf is adjusted by the continuous punching positioning component so that the next punching position of the door leaf is located below the cutting tool component, ensuring that the distance between adjacent ventilation holes is the same.

[0039] The specific usage of punching dies is as follows:

[0040] like Figures 1-3 As shown, the punching die, from top to bottom, includes an upper mounting plate, a cutting tool assembly, an upper die, a lower die, and a lower mounting plate. The upper and lower mounting plates are connected by guide sleeves and guide pillars. The guide sleeves are fixed at the four bottom corners of the upper mounting plate, and the guide pillars are fixed at the four top corners of the lower mounting plate. The sliding connection is achieved through the cooperation of the guide sleeves and guide pillars. A hydraulic cylinder (not shown in the figure) is located at the top of the upper mounting plate, and a support pillar is located at the bottom of the lower mounting plate. When the upper mounting plate is pressed down by the hydraulic cylinder, it slides along the direction of the guide pillars. Simultaneously, the support pillars ensure that the cutting head does not contact the bottom surface after passing through the through hole in the lower mounting plate.

[0041] Furthermore, the cutter head assembly includes a base plate and multiple uniformly arranged cutter heads. One side of the base plate is fixed to the upper mounting plate. The cutter head has a square column structure, and its shape is adapted to the shape of the ventilation hole in the door leaf. Consequently, the through hole dimensions of the upper mold, lower mold, and lower mounting plate also match the cross-sectional dimensions of the cutter head.

[0042] Furthermore, springs are provided between the base plate and the upper mold. Four springs are located at the four corners of the base plate, with one end of the spring connected to the base plate and the other end connected to the upper mold. Through the springs, the upper mold first abuts against the lower mold to complete the shaping of the edge of the door ventilation hole, and then the cutting head continues to press down to complete the punching.

[0043] Among them, such as Figure 4 As shown, the bottom of the upper mold has a frustum corresponding to the through hole, and the top of the lower mold has a groove corresponding to the through hole. When the upper and lower molds are closed, the door leaf located between the upper and lower molds can be pressed into a concave frustum shape, and then the edge of the ventilation hole of the door leaf can be shaped after punching with a cutting tool.

[0044] like Figure 7 As shown, the lower mounting plate is provided with an initial positioning component and a continuous punching positioning component on the side where the door leaf is discharged. The initial positioning component is located in the middle, and the two continuous punching positioning components are arranged on both sides.

[0045] like Figure 5 As shown, the initial positioning assembly includes a screw and an adjusting nut. The adjusting nut is fixed to the outside of the lower mounting plate by a support rod. The screw is threadedly engaged with the adjusting nut. The screw is used to limit the position of the door leaf during initial punching.

[0046] With the above technical solution, when the door leaf is punched for the first time, it is difficult to grasp the distance between the edge of the door leaf and the position to be punched. At this time, the screw is rotated upward and raised above the lower die. The position after the edge of the door leaf abuts the screw is exactly the position of the first punch. The initial positioning component makes it easy to position the door leaf for the first punch and avoid subsequent errors.

[0047] like Figure 6 As shown, the continuous punching positioning assembly includes a sleeve, a locking screw, and a positioning block. The cross-sectional dimensions of the positioning block are the same as those of the through hole. One end of the positioning block is fixed to the top of the inner cylinder of the sleeve, and the bottom of the outer cylinder of the sleeve is fixed to the lower mounting plate. The height of the positioning block is adjusted by the sleeve. The locking screw is threaded into the outer cylinder of the sleeve and is used to fix the height of the sleeve. The distance between the positioning block and the adjacent through hole is the same as the distance between two adjacent rows of cutting heads.

[0048] With the above technical solution, after the first set of ventilation holes on the door leaf is punched, the lower mold, tool assembly, and upper mounting plate are reset. The door leaf is then fed forward. When the last row of ventilation holes on the door leaf is above the continuous punching positioning assembly, the locking screws are loosened, and the lifting sleeve inserts the positioning block into the ventilation hole of the door leaf and locks it. At this point, the ventilation hole of the door leaf is inserted into the positioning block, and the door leaf is limited. The distance the door leaf has moved is just enough to align the area to be punched next with the tool assembly, and then the tool assembly performs the next punching. The continuous punching positioning assembly ensures that the diameter of the ventilation holes is the same after two adjacent punching operations, guaranteeing the aesthetic appearance of the ventilation holes.

[0049] The above description is merely a preferred embodiment of this utility model. It should be understood that this utility model is not limited to the forms disclosed herein and should not be construed as excluding other embodiments. It can be used in various other combinations, modifications, and environments, and can be altered within the scope of the concept described herein through the above teachings or related technologies or knowledge. Modifications and variations made by those skilled in the art that do not depart from the spirit and scope of this utility model should be protected within the scope of the appended claims.

Claims

1. A die for punching ventilation holes in a door panel, characterized in that: From top to bottom, it includes an upper mounting plate, a cutting tool assembly, an upper mold, a lower mold, and a lower mounting plate. The upper mounting plate and the lower mounting plate are connected by a guide sleeve and a guide post. The upper mold and the cutting tool assembly are connected by a spring. The door leaf is located between the upper mold and the lower mold. The cutting tool assembly includes a base plate and cutting heads. Multiple cutting heads are arrayed on the base plate. The side of the base plate away from the cutting heads is fixed to the upper mounting plate. The upper mold, lower mold, and lower mounting plate are all provided with corresponding through holes at the positions of the cutting heads. The bottom of the through hole of the upper mold is provided with a frustum, and the top of the through hole of the lower mold is provided with a groove that mates with the frustum. The lower mounting plate is located on the side of the door leaf outlet and is equipped with an initial positioning component and a continuous punching positioning component.

2. The door leaf ventilation hole punching die according to claim 1, characterized in that: The initial positioning assembly includes a screw and an adjusting nut. The adjusting nut is fixed to the outside of the lower mounting plate by a support rod. The screw is threadedly engaged with the adjusting nut. The screw is used to limit the position of the door leaf during initial punching.

3. The door leaf ventilation hole punching die according to claim 1, characterized in that: The continuous punching positioning assembly includes a sleeve, a locking screw, and a positioning block. The cross-sectional dimensions of the positioning block are the same as those of the through hole. One end of the positioning block is fixed to the top of the inner cylinder of the sleeve, and the bottom of the outer cylinder of the sleeve is fixed to the lower mounting plate. The height of the positioning block is adjusted by the sleeve. The locking screw is threaded into the outer cylinder of the sleeve and is used to fix the height of the sleeve. The distance between the positioning block and the adjacent through hole is the same as the distance between two adjacent rows of cutting heads.

4. The door leaf ventilation hole punching die according to claim 1, characterized in that: The cross-sectional areas of the base plate, upper mold, and lower mold are specified. The four springs are located at the four corners of the base plate, with one end of each spring connected to the base plate and the other end connected to the upper mold.

5. The door leaf ventilation hole punching die according to claim 1, characterized in that: The cutter head has a square column structure, and the cross-sectional dimensions of the through hole are adapted to the cross-sectional dimensions of the cutter head.

6. The door leaf ventilation hole punching die according to claim 1, characterized in that: The guide sleeve and the guide post are slidably fitted together. The guide sleeve is fixed on the upper mounting plate, and the guide post is fixed on the lower mounting plate.

7. The door leaf ventilation hole punching die according to claim 1, characterized in that: The upper mounting plate is equipped with a hydraulic cylinder at its top, and the lower mounting plate is equipped with a support column at its bottom.

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