Palm part surface texture forming die

Abstract

The palm part surface texture forming die comprises an upper forming die body and a lower forming die body. The upper forming mold comprises an upper mold plate, an upper mold base plate and an upper mold base which are sequentially arranged, an upper mold cavity is formed in the upper mold base, and an upper mounting opening communicated with the upper mold cavity is formed in the upper mold base; the lower forming mold comprises a lower mold plate, a lower mold base plate and a lower mold base which are sequentially arranged, a lower mold cavity is formed in the lower mold base, and a lower mounting opening communicated with the lower mold cavity is formed in the lower mold base; the upper mold cavity and the lower mold cavity are oppositely combined to form a mold cavity, a texture surface is arranged on the inner wall of the mold cavity, the mold cavity is used for being matched with a palm part, and the upper mounting opening and the lower mounting opening are oppositely combined to form an inflation mounting cavity; and one side of the lower forming mold is provided with a high-pressure gas filling part used for being connected with the inflation mounting cavity in an inserted mode. The device has the effect of improving the production quality of products.

Description

Technical Field

[0001] This application relates to the technical field of forming molds, and in particular to a forming mold for the surface texture of a palm. Background Technology

[0002] Stainless steel product molds offer stable dimensional accuracy, good thermal conductivity, and corrosion resistance. The sheet metal can be made in various thicknesses, making them ideal for the production of latex, silicone, PVC, nitrile, and other similar products.

[0003] Currently, Chinese patent application number 2023115768728 discloses a semi-finished metal hand mold and a method for manufacturing the palm part of the metal hand mold. Specifically, it discloses that the palm part is made of stainless steel and has a left half and a right half. When the left half and the right half of the palm part are spliced ​​together, they are fixed by welding to form the palm part.

[0004] Among them, industrial stainless steel metal hand molds and medical metal hand molds need to have raised and recessed textures formed on both the palm and finger surfaces. This is achieved by sandblasting with large particles. However, the palm has a hollow structure. Due to the high sandblasting pressure and fast jet speed, the surface of the palm will collapse when large sand particles hit the product, affecting the processing quality of the raised and recessed textures on the palm surface. Therefore, there is room for improvement. Utility Model Content

[0005] In order to improve the quality of product manufacturing, this application provides a mold for forming the surface texture of the palm.

[0006] The technical solution for the palm surface texture forming mold provided in this application is as follows:

[0007] A mold for forming the surface texture of a palm includes an upper mold and a lower mold;

[0008] The upper forming mold includes an upper template, an upper mold pad, and an upper mold base arranged in sequence. The upper mold base has an upper mold cavity and an upper mounting port communicating with the upper mold cavity. The lower forming mold includes a lower template, a lower mold pad, and a lower mold base arranged in sequence. The lower mold base has a lower mold cavity and a lower mounting port communicating with the lower mold cavity.

[0009] The upper mold cavity and the lower mold cavity are joined together to form a mold cavity. The inner wall of the mold cavity is provided with a textured surface. The mold cavity is used to fit the palm. The upper mounting port and the lower mounting port are joined together to form an expansion mounting cavity. A high-pressure gas filling part for inserting into the expansion mounting cavity is provided on one side of the lower forming mold.

[0010] Preferably, the upper mounting port is formed on the side of the upper mold base and extends into the upper mold base, and the upper mounting port is connected to the upper mold cavity.

[0011] Preferably, the lower mounting port is formed on the side of the lower mold base and extends into the lower mold base, and the lower mounting port is connected to the lower mold cavity.

[0012] Preferably, the high-pressure gas filling part includes a mounting base and a hydraulic cylinder disposed on the mounting base. A plunger is mounted on the piston rod of the hydraulic cylinder. The plunger cooperates with the expansion mounting cavity. A high-pressure air hole is opened in the plunger. One end of the high-pressure air hole communicates with the outer wall surface of the plunger, and the other end of the high-pressure air hole communicates with the end face of the plunger.

[0013] Preferably, the piston rod end of the hydraulic cylinder is provided with an external thread section, and the plunger is provided with an internal thread hole that is threaded to the external thread section.

[0014] Preferably, the plunger is provided with a guide cone surface at one end near the expansion mounting cavity, and a gap is maintained between the outer wall surface of the guide cone surface and the inner wall surface of the expansion mounting cavity, the gap being 0.2mm-0.3mm larger than the material thickness of the palm.

[0015] Preferably, a quick-connect fitting is threaded onto one end of the high-pressure gas port on the outer wall of the plunger, and a gas pipe for introducing high-pressure gas is connected to the quick-connect fitting.

[0016] In summary, this application includes at least one of the following beneficial technical effects:

[0017] The upper and lower forming molds close together, pressing the palm into the mold cavity. The palm is then inflated and shaped by high-pressure gas, adhering to the mold cavity under the pressure of the high-pressure gas. Simultaneously, the stainless steel material of the palm undergoes creep, filling the textured surface on the inner wall of the mold cavity, thereby forming a palm texture on the outer surface of the palm. This application uses high-pressure gas to inflate and shape the palm, thus forming a palm texture on the outer surface of the palm. The palm prepared in this way has a fuller and smoother palm texture with fewer surface defects, effectively improving the processing quality of the uneven palm texture on the outer surface of the palm. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the installation of the texture forming mold.

[0019] Figure 2 This is a schematic diagram of the structure of the palm.

[0020] Figure 3 This is a schematic diagram showing the demolding state of the upper and lower forming molds.

[0021] Figure 4 This is a schematic diagram of the mold closing state of the upper forming mold and the lower forming mold.

[0022] Figure 5 This is a schematic diagram of the palm being inflated and swollen.

[0023] Explanation of reference numerals in the attached drawings: 1. Press; 2. Texture forming mold; 21. Upper forming mold; 211. Upper template; 212. Upper mold pad; 213. Upper mold base; 214. Upper mold cavity; 215. Upper mounting port; 22. Lower forming mold; 221. Lower template; 222. Lower mold pad; 223. Lower mold base; 224. Lower mold cavity; 225. Lower mounting port; 23. High-pressure gas filling part; 231. Mounting seat; 232. Hydraulic cylinder; 233. Plunger; 234. Guide cone surface; 235. High-pressure air hole. Detailed Implementation

[0024] The following is in conjunction with the appendix Figure 1-5 This application will be described in further detail.

[0025] A mold for forming the surface texture of the palm, as shown in the figure. Figure 1 As shown, it includes an upper forming mold 21 and a lower forming mold 22, which are disposed in a press 1. The upper forming mold 21 is mounted on the upper table of the press 1, and the lower forming mold 22 is mounted on the lower table of the press 1. The press 1 is used to drive the upper forming mold 21 and the lower forming mold 22 to perform a mold closing action.

[0026] Reference Figure 3 and Figure 4 As shown, the upper forming mold 21 includes an upper template 211, an upper mold pad 212, and an upper mold base 213 arranged sequentially. The upper mold pad 212 is fixed to the lower surface of the upper template 211, and the upper mold base 213 is fixed to the lower surface of the upper mold pad 212. The upper mold base 213 is provided with an upper mold cavity 214, and an upper mounting port 215 is opened on the upper mold base 213. The upper mounting port 215 is opened on the side of the upper mold base 213 and extends into the upper mold base 213. The upper mounting port 215 is connected to the upper mold cavity 214.

[0027] The lower forming mold 22 includes a lower template 221, a lower mold pad 222, and a lower mold base 223 arranged sequentially. The lower mold pad 222 is fixed on the upper surface of the lower template 221, and the lower mold base 223 is fixed on the upper surface of the lower mold pad 222. The lower mold base 223 is provided with a lower mold cavity 224, and a lower mounting port 225 is opened on the lower mold base 223. The lower mounting port 225 is opened on the side of the lower mold base 223 and extends into the lower mold base 223. The lower mounting port 225 is connected to the lower mold cavity 224.

[0028] The upper mold cavity 214 and the upper mold cavity 214 are joined together to form a mold cavity. The inner wall of the mold cavity is provided with a textured surface. The mold cavity is designed to fit the palm. (Refer to...) Figure 2 As shown, the palm part has fingers, palm and wrist opening, and the mold cavity has finger part, palm part and wrist opening part.

[0029] The upper mounting port 215 and the lower mounting port 225 are joined together to form an expansion mounting cavity. The expansion mounting cavity is cylindrical and is connected to the wrist opening corresponding to the palm. A high-pressure gas filling part 23 for inserting into the expansion mounting cavity is provided on one side of the lower forming mold 22.

[0030] Reference Figure 3 and Figure 4 As shown, the high-pressure gas filling part 23 includes a mounting base 231 and a hydraulic cylinder 232 mounted on the mounting base 231. The cylinder body of the hydraulic cylinder 232 is fixed on the mounting base 231, and the piston rod of the hydraulic cylinder 232 passes through the mounting base 231. The mounting base 231 is fixed on the lower template 221. A plunger 233 is mounted on the piston rod of the hydraulic cylinder 232. Specifically, the end of the piston rod of the hydraulic cylinder 232 is provided with an external thread section, and the plunger 233 is provided with an internal thread hole that is threaded to the external thread section. The plunger 233 is threadedly connected to the piston rod of the hydraulic cylinder 232, thereby enabling the plunger 233 to be replaced on the piston rod.

[0031] It is worth noting that the axial direction line of the plunger 233 is located on the axial direction line of the piston rod of the hydraulic cylinder 232, and both the plunger 233 and the piston rod are set in the horizontal direction.

[0032] The plunger 233 mates with the expansion mounting cavity. A guide cone 234 is provided at one end of the plunger 233 near the expansion mounting cavity. A gap is maintained between the outer wall of the guide cone 234 and the inner wall of the expansion mounting cavity. This gap is 0.2mm-0.3mm larger than the material thickness of the palm. In this embodiment, the material thickness of the palm is 1mm, and the outer wall of the guide cone 234 is inclined, resulting in a maximum gap of 1.2mm. Therefore, the guide cone 234 can be inserted into the wrist opening of the palm. As the plunger 233 advances, the guide cone 234 continuously locks the wrist opening of the palm.

[0033] The distance L between the end of the plunger 233 and the opening of the mold cavity is 10-15mm. The stroke of the hydraulic cylinder 232 driving the plunger 233 to move is at least 1mm more than this distance L. In this embodiment, the distance L between the end of the plunger 233 and the opening of the mold cavity is 10mm, and the stroke of the hydraulic cylinder 232 driving the plunger 233 to move is 12mm.

[0034] A high-pressure air hole 235 is provided inside the plunger 233. One end of the high-pressure air hole 235 is connected to the outer wall surface of the plunger 233, and the other end of the high-pressure air hole 235 is connected to the end face of the plunger 233. The end face of the plunger 233 is the end face of the plunger 233 that is close to the expansion mounting cavity.

[0035] A quick-connector is threaded onto one end of the high-pressure air port 235 on the outer wall of the plunger 233. The quick-connector is connected to one end of the high-pressure air port 235 and has an air tube connected to it. High-pressure gas can be introduced into the high-pressure air port 235 through the air tube and then pressed into the inner cavity of the palm through the high-pressure air port 235, inflating the palm with high-pressure gas.

[0036] Before the palm enters the mold cavity, it needs to be heated to 700-960℃. Then, the robotic arm grips the palm and quickly places it into the lower mold cavity 224 of the lower forming mold 22.

[0037] The press 1 drives the upper forming mold 21 and the lower forming mold 22 to perform a mold closing action, and the palm is pressed tightly in the mold cavity.

[0038] At this time, the plunger 233 moves under the drive of the hydraulic cylinder 232. The plunger 233 moves to one side of the mold cavity, and the guide cone surface 234 at the end of the plunger 233 is inserted into the wrist opening of the palm and locks the wrist opening of the palm from the inside and outside.

[0039] Reference Figure 5 As shown, high-pressure gas is then introduced into the high-pressure gas port 235 through the gas pipe, and enters the palm through the high-pressure gas port 235 until the internal pressure of the palm reaches 50MPa. The internal pressure of the palm is maintained for 10 seconds, and the palm is inflated and shaped by the high-pressure gas. Under the pressure of the high-pressure gas, the palm adheres to the mold cavity. At the same time, the stainless steel metal material of the palm creeps and fills the textured surface on the inner wall of the mold cavity, thereby forming the palm texture on the outer surface of the palm.

[0040] After the palm texture is formed, the pressure inside the palm is released. After the pressure is released, the plunger 233 retracts, the upper forming mold 21 is raised, the palm is taken out of the mold cavity, and the next palm processing operation begins.

[0041] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. A mold for forming surface texture of the palm, characterized in that, It includes an upper forming mold (21) and a lower forming mold (22); The upper forming mold (21) includes an upper template (211), an upper mold pad (212), and an upper mold base (213) arranged in sequence. The upper mold base (213) is provided with an upper mold cavity (214), and the upper mold base (213) is provided with an upper mounting port (215) communicating with the upper mold cavity (214). The lower forming mold (22) includes a lower template (221), a lower mold pad (222), and a lower mold base (223) arranged in sequence. The lower mold base (223) is provided with a lower mold cavity (224), and the lower mold base (223) is provided with a lower mounting port (225) communicating with the lower mold cavity (224). The upper mold cavity (214) and the upper mold cavity (214) are joined together to form a mold cavity. The inner wall of the mold cavity is provided with a textured surface. The mold cavity is used to fit the palm. The upper mounting port (215) and the lower mounting port (225) are joined together to form an expansion mounting cavity. One side of the lower forming mold (22) is provided with a high-pressure gas filling part (23) for inserting into the expansion mounting cavity.

2. The palm surface texture forming mold according to claim 1, characterized in that, The upper mounting port (215) is opened on the side of the upper mold base (213) and extends into the upper mold base (213), and the upper mounting port (215) is connected to the upper mold cavity (214).

3. The palm surface texture forming mold according to claim 1, characterized in that, The lower mounting port (225) is opened on the side of the lower mold base (223) and extends into the lower mold base (223), and the lower mounting port (225) is connected to the lower mold cavity (224).

4. A palm surface texture forming mold according to claim 1, characterized in that, The high-pressure gas filling part (23) includes a mounting base (231) and a hydraulic cylinder (232) disposed on the mounting base (231). A plunger (233) is mounted on the piston rod of the hydraulic cylinder (232). The plunger (233) cooperates with the expansion mounting cavity. A high-pressure air hole (235) is opened in the plunger (233). One end of the high-pressure air hole (235) communicates with the outer wall surface of the plunger (233), and the other end of the high-pressure air hole (235) communicates with the end face of the plunger (233).

5. A palm surface texture forming mold according to claim 4, characterized in that, The piston rod end of the hydraulic cylinder (232) is provided with an external thread section, and the plunger (233) is provided with an internal thread hole that is threaded to the external thread section.

6. A palm surface texture forming mold according to claim 4, characterized in that, The plunger (233) is provided with a guide cone surface (234) at one end near the expansion mounting cavity. The outer wall surface of the guide cone surface (234) and the inner wall surface of the expansion mounting cavity maintain a gap, which is 0.2mm-0.3mm larger than the material thickness of the palm.

7. A palm surface texture forming mold according to claim 4, characterized in that, The outer wall of the plunger (233) is threaded with a quick-connect fitting at one end of the high-pressure air hole (235), and the quick-connect fitting is connected to an air pipe for introducing high-pressure gas.

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