A die for stamping automotive interior parts

By introducing a sensor and a micro-heating furnace control system into the stamping mold of automotive interior parts, combined with an air cooler and fan blade assembly, the problems of deformation and debris recycling of new lightweight materials during the stamping process were solved, achieving high processing precision and efficiency.

CN116252357BActive Publication Date: 2025-10-31RUGAO ZHIRONG MASCH TECH CO LTD
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Patent Information

Application Number
CN202310037173.X
Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
Filing Date
2023-01-10
Publication Date
2025-10-31
Estimated Expiration
2043-01-10

AI Technical Summary

Technical Problem

Existing automotive interior parts stamping dies are prone to deformation and cracking due to temperature variations when processing new lightweight materials, and the lack of timely debris recovery also affects processing accuracy.

Method used

The mold design incorporates a fixing mechanism, a cutting mechanism, a storage mechanism, and a control system. It utilizes sensors and a micro-heating furnace to control the temperature, and combines an air cooler and a fan blade assembly for cooling and debris recovery.

Benefits of technology

It effectively prevents material deformation and discoloration, ensures processing accuracy, cleans up debris in a timely manner, and improves processing efficiency.

✦ Generated by Eureka AI based on patent content.

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Abstract

This invention relates to the field of stamping forming molds for automotive interior parts, and discloses a stamping forming mold for automotive interior parts. The cutting mechanism further includes a support column, which is fixedly connected to a buckle. A punch is welded to the bottom of the support column. A conduction chamber is opened on the inner wall of the support column. A miniature heating furnace is fixedly connected to the outer wall of the support column. A transmission branch pipe is fixedly connected to one end of the miniature heating furnace. This invention, by including a sensor, a cutting ring, and a punch, facilitates the operation of an air cooler when the punch contacts the sensor. When the material being processed is a conventional metal or does not require temperature heating for cutting, the air cooler is powered on to separate, clean, and collect the material at the cutting point. Simultaneously, if the material being processed is a special lightweight material, when the punch contacts the sensor, the air cooler is powered on to cool the cutting ring and collect debris through the cooperation of the air cooler and the fan blade assembly.
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Description

Technical Field

[0001] This invention relates to the field of stamping forming molds for automotive interior parts, and more specifically to a stamping forming mold for automotive interior parts. Background Technology

[0002] Stamping dies are one of the equipment used in the production of automotive interior trim. They are mainly composed of a punch press, punch, and limiting devices. The working principle is as follows: the upper die, directly or indirectly fixed to the upper mold, is connected to the punch press slide via a die shank. The lower die, fixed to the lower mold, is secured to the punch press worktable by a pressure plate. The upper and lower dies are guided. During operation, the sheet metal is fed into the positioning position by the stop. As the upper die descends with the slide, the unloading mechanism first holds the sheet metal in place, then the punch processes the material to obtain the workpiece. At this point, the workpiece is stuck between the punch and the die, and the scrap is also tightly bound to the punch. When the upper die rises, the workpiece is ejected from the die cavity by the spring force of the top plate and the ejector plate. Simultaneously, the scrap bound to the punch is removed by the spring force of the stripper plate and sent to a storage device for storage. The workpiece is then removed, completing the entire blanking process.

[0003] However, with the improvement of living standards, lightweight automotive technology has gradually entered people's lives. As a result, more and more new lightweight materials are appearing in the production of automotive interior parts, such as hard rubber sheets and acrylic materials. However, the required temperature for the cutting surface of these materials during the cutting and stamping process is different, which causes the following problems to occur in the use of conventional stamping dies:

[0004] The primary reason for the deformation caused by temperature is that when cutting new lightweight automotive materials, especially when using traditional stamping methods, some of these materials may develop cracks. Although there are heated punches available on the market, the punches undergo a recovery phase during the stamping process. This residual heat from the punch causes deformation and discoloration at the stamping location, resulting in the ineffectiveness of the processed parts.

[0005] II. Debris recovery. The main reason for the problem is that when the material is cut and stamped, the external pressure is mainly used to generate corresponding pressure on the surface of the material to complete the material processing. However, the stamping and cutting part may generate debris under pressure. If it is not cleaned in time, it may accumulate on the surface of the processing table, which will affect the accuracy of the material in the later processing. Summary of the Invention

[0006] In order to overcome the above-mentioned defects of the prior art, the present invention provides a stamping die for automotive interior parts to solve the problems existing in the background art.

[0007] This invention provides the following technical solution: a stamping and forming mold for automotive interior parts, comprising a fixing mechanism, a cutting mechanism at the bottom of the fixing mechanism, a storage mechanism at the bottom of the middle part of the fixing mechanism, and a working platform. A support frame is fixedly connected to the bottom of the working platform by conventional bolts, and a fixing device is threadedly connected to the top of the working platform. A first electro-hydraulic column is fixedly connected to the outer wall of the fixing device, a flat plate is fixedly connected to the top of the first electro-hydraulic column, a buckle is fixedly connected to the middle part, a spring device is fixedly connected to the bottom of the flat plate, a limit plate is fixedly connected to one end of the spring device, and a processing plate is welded to the middle part of the working platform.

[0008] The cutting mechanism also includes a support column, which is fixedly connected to the buckle. A punch is welded to the bottom of the support column. A conduction chamber is opened on the inner wall of the support column. A miniature heating furnace is fixedly connected to the outer wall of the support column. A transmission branch pipe is fixedly connected to one end of the miniature heating furnace. A cutting ring is fixedly connected to one end of the transmission branch pipe. A spring cabin is fixedly connected to the top of the cutting ring. A sleeved central column is fitted onto the outer wall of the spring cabin.

[0009] The storage mechanism also includes a storage compartment with a valve hinged to the bottom. A sensor is fixedly connected to one side of the inner wall of the storage compartment. A slot is provided on one side of the bottom of the support column. A fixed frame is fixedly connected to the inner wall of the slot. A filter plate is fixedly connected to one side of the slot. A fan blade assembly is fixedly connected to the inner wall of the fixed frame. An air cooler is fixedly connected to the top of the fixed frame. The data from the sensor is transmitted to the control system in real time.

[0010] In a preferred embodiment, a miniature electro-hydraulic column is fixedly connected to the inner wall of the spring chamber, a countersunk groove is provided at the bottom of the punch, a torsion spring is sleeved at the position of the countersunk groove at the bottom of the punch, and a first ring is specifically connected to one end of the torsion spring.

[0011] In a preferred embodiment, the inner wall of the cutting ring is inclined, and the top of the cutting ring is provided with a heat insulation layer.

[0012] In a preferred embodiment, the bottom of the support frame is provided with a rubber layer, and the inner wall of the bottom of the support frame is provided with a threaded groove.

[0013] In a preferred embodiment, a working platform is welded to the outer wall of the storage compartment, and a heat-resistant layer is coated on the inner wall of the storage compartment.

[0014] In a preferred embodiment, the control system further includes a sensing unit, a control unit, an energy control unit, a wind power control unit, a hydraulic column control unit, and a temperature control unit.

[0015] In a preferred embodiment, the workflow of the control system is as follows:

[0016] Step 1: Input the type of material to be processed and various data of the processed parts into the control unit;

[0017] Step 2: The control unit operates through the hydraulic column control unit and temperature control unit inside the energy control unit;

[0018] Step 3: The sensing unit senses the data from the sensor and controls the temperature regulation unit through the control unit to perform cooling residue recovery operations at the material stamping point.

[0019] The technical effects and advantages of this invention are as follows:

[0020] 1. This invention, by incorporating a sensor, a cutting ring, and a punch, facilitates the operation of an air cooler when the punch contacts the sensor. This is beneficial when the material being processed is a conventional metal or does not require temperature heating for cutting. At this time, the air cooler is powered on to separate, clean, and collect the material at the cutting point. Simultaneously, if the material being processed is a special lightweight material, the air cooler is powered on when the punch contacts the sensor. Through the cooperation of the air cooler and the fan blade assembly, the cutting ring is cooled and debris is collected.

[0021] 2. By incorporating a control system, this invention facilitates the return of the cutting ring to the inside of the punch under the control system's operation. This prevents the temperature of the cutting ring surface from causing deformation or discoloration of the cutting material. Simultaneously, its cooling temperature can also cool the stamping area, thereby preventing deformation caused by heat conduction and avoiding situations such as ineffective processing of the workpiece. Attached Figure Description

[0022] Figure 1 This is a schematic diagram of the overall structure of the present invention.

[0023] Figure 2 This is a front view of the overall structure of the present invention.

[0024] Figure 3 This is an exploded view of the overall structure of the storage mechanism of the present invention.

[0025] Figure 4 This is a schematic diagram of the overall structure of the cutting punch of the present invention.

[0026] Figure 5 This is a schematic cross-sectional view of the overall structure of the cutting punch of the present invention.

[0027] Figure 6 This is a schematic cross-sectional view of the overall structure of the spring cabin of the present invention.

[0028] Figure 7 This is a flowchart of the overall control system of the present invention.

[0029] The attached figures are labeled as follows: 1. Fixing mechanism; 101. Working platform; 102. Support frame; 103. First electro-hydraulic column; 104. Processing plate; 105. Fixing device; 106. Spring device; 107. Limiting plate; 108. Buckle; 2. Cutting mechanism; 201. Support column; 202. Miniature heating furnace; 203. Punch; 204. First ring; 205. Transmission branch pipe; 206. Spring chamber; 207. Cutting ring; 208. Sleeve center column; 209. Miniature electro-hydraulic column; 3. Storage mechanism; 301. Storage chamber; 302. Valve; 303. Air cooler; 304. Fixing frame; 305. Fan blade assembly; 306. Filter plate; 307. Slot; 308. Sensor. Detailed Implementation

[0030] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings. In addition, the forms of the various structures described in the following embodiments are merely illustrative. The automotive interior part stamping and forming die involved in the present invention is not limited to the structures described in the following embodiments. All other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0031] Reference Figure 1 and Figure 2 The present invention provides a stamping forming mold for automotive interior parts, including a fixing mechanism 1, a cutting mechanism 2 at the bottom of the fixing mechanism 1, and a storage mechanism 3 at the bottom of the middle part of the fixing mechanism 1;

[0032] The fixing mechanism 1 also includes a work platform 101. The bottom of the work platform 101 is fixedly connected to a support frame 102 by conventional bolts. The top of the work platform 101 is threadedly connected to a fixing device 105. The outer wall of the fixing device 105 is fixedly connected to a first electro-hydraulic column 103. The top of the first electro-hydraulic column 103 is fixedly connected to a plate, and the middle of the plate is fixedly connected to a buckle 108. The bottom of the plate is fixedly connected to a spring device 106. One end of the spring device 106 is fixedly connected to a limit plate 107. A processing plate 104 is welded to the middle of the work platform 101.

[0033] In this embodiment, the bottom of the support frame 102 is provided with a rubber layer, and the inner wall of the bottom of the support frame 102 is provided with a threaded groove, which is beneficial for fixing the support frame 102 to the processing position. The inner wall of the middle part of the processing plate 104 is provided with a sloping slide groove, which is beneficial for sending the cutting chips into the storage mechanism 3 for storage and management. The first electric hydraulic column 103 is model DYT.

[0034] During operation, the material to be processed is placed on the surface of the processing plate 104. The next step is to control the first electro-hydraulic column 103 to start inputting current through the manual control system, thereby driving its limiting plate 107 to contact the surface of the material to perform limiting treatment. At the same time, driven by the first electro-hydraulic column 103, its punch 203 will contact the surface of the material to perform cutting operations.

[0035] Reference Figure 1 And a stamping die for automotive interior parts shown in 4-6, including a cutting mechanism 2, the cutting mechanism 2 also including a support column 201, the support column 201 is fixedly connected to the buckle 108, a punch 203 is welded to the bottom of the support column 201, a conduction chamber is opened on the inner wall of the support column 201, a miniature heating furnace 202 is fixedly connected to the outer wall of the support column 201, a transmission branch pipe 205 is fixedly connected to one end of the miniature heating furnace 202, and one end of the transmission branch pipe 205 is fixedly connected to... There is a cutting ring 207, the inner wall of the cutting ring 207 is inclined, the top of the cutting ring 207 is provided with a heat insulation layer, the top of the cutting ring 207 is fixedly connected to a spring chamber 206, the outer wall of the spring chamber 206 is sleeved with a sleeved central column 208, the inner wall of the spring chamber 206 is fixedly connected to a miniature electric hydraulic column 209, the bottom of the punch 203 is provided with a countersunk groove, a torsion spring is sleeved at the position of the countersunk groove at the bottom of the punch 203, and one end of the torsion spring is specifically connected to a first ring 204.

[0036] In this embodiment, the first ring 204 is a ring sealing structure composed of multiple semi-circular rings, which is beneficial for it to be in both open and sealed states. The inner wall of the conduction chamber is coated with a heat insulation layer, which is beneficial for achieving a heat insulation effect. The distance between the cutting ring 207 and the countersunk groove is 0.01 mm, and the thickness of the countersunk groove is 0.5-1 mm, which is beneficial for reducing the gap width generated by cutting. The model of the micro heating furnace 202 is GDXH-5.

[0037] During operation, when punching the new lightweight material, the control system controls the micro electric hydraulic cylinder 209 to supply current, thereby driving a set of spring chambers 206 to move downwards and move the cutting ring 207 until the cutting ring 207 contacts the cutting ring 207. By compressing the torsion spring, the cutting ring 207 is moved to the outer wall of the punch 203. At the same time, the micro heating furnace 202 starts to operate, thereby generating corresponding heat and sending it to the surface of the cutting ring 207 through the transmission branch pipe 205, so as to punch the lightweight material.

[0038] Reference Figure 1-3 The illustrated automotive interior parts stamping die includes a storage mechanism 3, which further includes a storage compartment 301. A valve 302 is hinged to the bottom of the storage compartment 301. A sensor 308 is fixedly connected to one side of the inner wall of the storage compartment 301. A slot 307 is provided on one side of the bottom of the support column 201. A fixing frame 304 is fixedly connected to the inner wall of the slot 307. A filter plate 306 is fixedly connected to one side of the slot 307. A fan blade assembly 305 is fixedly connected to the inner wall of the fixing frame 304. An air cooler 303 is fixedly connected to the top of the fixing frame 304.

[0039] In this embodiment, a working platform 101 is welded to the outer wall of the storage compartment 301, and a heat-resistant layer is coated on the inner wall of the storage compartment 301, which helps to prevent high temperature from affecting the service life of the storage mechanism 3. Meanwhile, the sensor 308 is model number WNK-30C1-W200, the air cooler 303 is model number GWB, and the fan blade assembly 305 is model number MF40060V2-1000C-A99.

[0040] When the punch 203 contacts the sensor 308, if the material being processed is a conventional metal or does not require temperature heating for cutting, the air cooler 303 will start operating to separate, clean, and collect the material at the cutting point. If the material being processed is a special lightweight material, when the punch 203 contacts the sensor 308, the air cooler 303 will start operating. Through the cooperation of the air cooler 303 and the fan blade assembly 305, the cutting ring 207 will be cooled and debris collected. At the same time, under the action of the control system, the cutting ring 207 will be driven back into the punch 203 to prevent the surface temperature of the cutting ring 207 from causing deformation, discoloration, or other phenomena to the cutting material.

[0041] refer to Figure 7 The illustrated automotive interior parts stamping die includes a sensor 308, whose data is transmitted to the control system in real time.

[0042] The control system also includes a sensing unit, a control unit, an energy control unit, a wind power control unit, a hydraulic column control unit, and a temperature control unit.

[0043] Sensing unit: Data transmission unit for sensor 308;

[0044] Control unit: Collects and processes processing data from the punching and forming die, and regulates energy.

[0045] Energy control unit: controls the power supply to each component of the punching die;

[0046] Wind power control unit: controls the input current of air cooler 303 and fan blade assembly 305;

[0047] Hydraulic column control unit: controls the input current of the miniature electric hydraulic column 209 and the first electric hydraulic column 103;

[0048] Temperature control unit: controls the input current of the miniature heating furnace 202.

[0049] The workflow of the control system is as follows:

[0050] Step 1: Input the type of material to be processed and various data of the processed parts into the control unit;

[0051] Step 2: The control unit operates through the hydraulic column control unit and temperature control unit inside the energy control unit;

[0052] Step 3: The sensing unit senses the data from sensor 308 and controls the temperature regulation unit through the control unit to perform cooling residue recovery operations at the material stamping area.

[0053] Working principle of the invention:

[0054] Stamping: During operation, when stamping the new lightweight material, the control system controls the micro electric hydraulic cylinder 209 to supply current, thereby driving a set of spring chambers 206 to move downwards and move the cutting ring 207 until the cutting ring 207 contacts the cutting ring 207. By compressing the torsion spring, the cutting ring 207 is moved to the outer wall of the punch 203. At the same time, the micro heating furnace 202 starts to operate, thereby generating corresponding heat and sending it to the surface of the cutting ring 207 through the transmission branch pipe 205, so as to facilitate the stamping operation of the lightweight material.

[0055] Temperature regulation and residue cleaning: When the punch 203 contacts the sensor 308, if the material being processed is a conventional metal or does not require temperature heating for cutting, the air cooler 303 will start operating to separate, clean, and collect the material at the cutting point. If the material being processed is a special lightweight material, when the punch 203 contacts the sensor 308, the air cooler 303 will start operating. Through the cooperation of the air cooler 303 and the fan blade assembly 305, the cutting ring 207 will be cooled and debris collected. At the same time, the cutting ring 207 will be driven back into the punch 203 under the action of the control system to prevent the surface temperature of the cutting ring 207 from causing deformation, discoloration, or other phenomena to the cutting material.

[0056] In conclusion, the above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A stamping die for automotive interior parts, comprising a fixing mechanism (1), characterized in that: The bottom of the fixing mechanism (1) is provided with a cutting mechanism (2), and the bottom of the middle part of the fixing mechanism (1) is provided with a storage mechanism (3). The fixing mechanism (1) also includes a working platform (101). The bottom of the working platform (101) is fixedly connected to a support frame (102) by conventional bolts. The top of the working platform (101) is threadedly connected to a fixing device (105). The outer wall of the fixing device (105) is fixedly connected to a first electric hydraulic column (103). The top of the first electric hydraulic column (103) is fixedly connected to a plate. The middle part of the plate is fixedly connected to a buckle (108). The bottom of the plate is fixedly connected to a spring device (106). One end of the spring device (106) is fixedly connected to a limit plate (107). The middle part of the working platform (101) is welded with a processing plate (104). The cutting mechanism (2) also includes a support column (201), which is fixedly connected to the buckle (108). A punch (203) is welded to the bottom of the support column (201). A conduction chamber is opened on the inner wall of the support column (201). A miniature heating furnace (202) is fixedly connected to the outer wall of the support column (201). A transmission branch pipe (205) is fixedly connected to one end of the miniature heating furnace (202). A cutting ring (207) is fixedly connected to one end of the transmission branch pipe (205). A spring cabin (206) is fixedly connected to the top of the cutting ring (207). A sleeved central column (208) is sleeved on the outer wall of the spring cabin (206). The storage mechanism (3) also includes a storage compartment (301), a valve (302) is hinged to the bottom of the storage compartment (301), a sensor (308) is fixedly connected to one side of the inner wall of the storage compartment (301), a slot (307) is provided on one side of the bottom of the support column (201), a fixed frame (304) is fixedly connected to the inner wall of the slot (307), a filter plate (306) is fixedly connected to one side of the slot (307), a fan blade assembly (305) is fixedly connected to the inner wall of the fixed frame (304), and an air cooler (303) is fixedly connected to the top of the fixed frame (304). The data from the sensor (308) will be transmitted to the control system in real time.

2. The stamping die for automotive interior parts according to claim 1, characterized in that: The inner wall of the spring chamber (206) is fixedly connected to a miniature electric hydraulic column (209). The bottom of the punch (203) is provided with a countersunk groove. A torsion spring is sleeved at the position of the countersunk groove at the bottom of the punch (203). One end of the torsion spring is fixedly connected to a first ring (204).

3. The stamping die for automotive interior parts according to claim 1, characterized in that: The inner wall of the cutting ring (207) is inclined, and the top of the cutting ring (207) is provided with a heat insulation layer.

4. The stamping die for automotive interior parts according to claim 1, characterized in that: The bottom of the support frame (102) is provided with a rubber layer, and the inner wall of the bottom of the support frame (102) is provided with a threaded groove.

5. The stamping die for automotive interior parts according to claim 1, characterized in that: The outer wall of the storage compartment (301) is welded with a working platform (101), and the inner wall of the storage compartment (301) is coated with a heat-resistant layer.

6. The stamping die for automotive interior parts according to claim 1, characterized in that: The control system also includes a sensing unit, a control unit, an energy control unit, a wind power control unit, a hydraulic column control unit, and a temperature control unit.

7. The stamping die for automotive interior parts according to claim 6, characterized in that: The workflow of the control system is as follows: Step 1: Input the type of material to be processed and various data of the processed parts into the control unit; Step 2: The control unit operates through the hydraulic column control unit and temperature control unit inside the energy control unit; Step 3: The sensing unit senses the data from the sensor (308) and controls the temperature control unit to perform cooling residue recovery operations at the material stamping point through the control unit.

Citation Information

Patent Citations

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    CN201760928U

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    CN203818243U