A multi-stroke press for silicone rubber

Abstract

The application discloses a kind of silicon rubber one-out multi-punching device, including punch section, female die section and material top section, punch section includes first fixed assembly and several punch pins, the top of several punch pins is fixed in first fixed assembly, bottom end extends to female die section, material top section includes second fixed assembly, driving part and with punch pin one-to-one corresponding ejector pin, first fixed assembly is provided with chamber above punch pin in, second fixed assembly is set in chamber, driving part drives second fixed assembly to move up and down in chamber;The top of ejector pin is fixed in second fixed assembly, bottom end is inserted into the through hole that goes up and down in the inside of punch pin.The top of ejector pin is set in punch pin, product is kept in cutting notch before punch pin goes up, can effectively avoid product from cutting notch and jump out upwards.

Description

Technical Field

[0001] This invention relates to the field of silicone button manufacturing technology, and in particular to a silicone rubber multi-press device. Background Technology

[0002] Silicone rubber products are generally made by pressing cut rubber sheets or blocks into vulcanizing molds. If the size of the silicone rubber product is small, it can be produced by using a multi-cavity mold. The resulting semi-finished product is then placed in a stamping device to punch the product out of the semi-finished product.

[0003] However, in actual use, it has been found that when punching a whole piece of semi-finished product, the upper die often gets stuck with material, and the product does not drop smoothly. The current solution is to deal with it after the fact, that is, after the upper die gets stuck with material, the material stuck with the upper die is manually removed. This situation not only reduces the punching efficiency, but may also damage the die in severe cases. Summary of the Invention

[0004] Therefore, the object of the present invention is to provide a silicone rubber one-outlet multi-stamping device, which at least partially solves the problems in the prior art.

[0005] According to this application, a silicone rubber one-out-multiple-stamping device includes a punch, a die, and an ejector, wherein the punch is disposed above the die, and the punch and the die are movably connected by a guide assembly.

[0006] The top of the punch is provided with an upper locking template fixed to the press head, and the bottom of the die is provided with a lower locking template fixed to the press platform.

[0007] The punch portion includes a first fixing component and several punches. The top ends of the punches are fixed in the first fixing component, and the bottom ends extend toward the die portion. When the punch portion closes downward with the die portion, the bottom ends of the punches are inserted into the corresponding punching notches in the die portion.

[0008] The ejector portion includes a second fixing component, a driving component, and ejector pins corresponding to the punches. The first fixing component has a cavity located above the punches, and the second fixing component is disposed within the cavity. The driving component drives the second fixing component to move up and down within the cavity. The top end of the ejector pin is fixed within the second fixing component, and the bottom end is inserted downward into a through hole that runs vertically through the punch. When the punch is not closed with the die, the bottom end of the ejector pin is located within the through hole. When the punch and die are closed, the driving component drives the ejector pin downward so that its bottom end protrudes from the punch.

[0009] The advantage of the stamping device according to this application is that, driven by external power, the punch descends and closes with the die, and the punch cuts the product downward from the semi-finished product. Before the punch rises, the cylinder drives the ejector pin downward to extend from the punch and further push the cut product into the punching recess. After the punch rises and the punch completely withdraws from the punching recess, the cylinder drives the ejector pin to rise. This avoids the punch from pulling the product out of the punching recess, ensuring the smooth and continuous operation of the stamping process.

[0010] According to some embodiments of this application, the first fixing component includes a first pressure plate, a punching plate, and pads. The punching plate has a first mounting hole for the punch to pass through. The first pressure plate is disposed on the side of the punching plate corresponding to the locking template to fix the punch. Two pads are disposed on the side of the first pressure plate corresponding to the locking template, and the pads form a cavity between the locking template and the first pressure plate to accommodate the second fixing component. By fixing the punch with the first pressure plate and the punching plate, the locking between the first pressure plate and the punching plate can be released to pull out any punch, which is convenient for mold repair and adjustment.

[0011] According to some embodiments of this application, the second fixing component includes a second pressure plate and an ejector plate. The ejector plate has a second mounting hole for the ejector pin to pass through. The second pressure plate is disposed on the side of the ejector plate corresponding to the locking template to fix the ejector pin. The ejector pin is fixed by the second pressure plate and the ejector plate together. By releasing the lock between the second pressure plate and the ejector plate, any ejector pin can be pulled out, which is convenient for mold repair and adjustment.

[0012] According to some embodiments of this application, the driving component is configured as two cylinders respectively located on both sides of the locking template. The cylinder body is connected to the side of the locking template, and the bottom end of the telescopic rod is connected to the second fixing component. Preferably, a U-shaped groove is provided on each side of the second fixing component, and the telescopic rod of the cylinder is located in the U-shaped groove; an upper nut located above the second fixing component and a lower nut located below the second fixing component are provided on the telescopic rod of the cylinder. By using cylinders as the driving component and making the telescopic rod of the cylinder and the second fixing component a detachable structure, the overall disassembly of the second fixing component is facilitated.

[0013] According to some embodiments of this application, the die cavity includes a die plate disposed above the lower locking die plate, the punching notch is disposed in the die plate, and a collection box is disposed on one side of the die plate corresponding to the lower locking die plate. Preferably, a horizontal suction plate is disposed inside the collection box, and a plurality of suction ports are disposed on the top of the suction plate. A material discharge port is formed between the end of the suction plate corresponding to the front side of the press and the inner wall of the collection box. A push plate is disposed above the suction plate, and a horizontal cylinder is disposed outside the die plate to drive the push plate toward or away from the front side of the press. Preferably, the bottom of the push plate is provided with bristles that contact the upper surface of the suction plate. By suctioning the product punched into the punching notch from below by the suction plate, the product can be effectively prevented from being lifted by the punch and ejector pin.

[0014] According to some embodiments of this application, the material collection box is provided with a drawer box located below the suction plate and pullable towards the front of the stamping machine. Products falling from the discharge port enter the drawer box. The pull-out drawer box facilitates the removal of products.

[0015] Compared with the prior art, the beneficial effects of this application are:

[0016] 1. By setting a movable ejector pin inside the punch, the product is kept in the punching notch before the punch moves upward, which can effectively prevent the product from jumping out of the punching notch.

[0017] 2. By installing a suction plate below the punching notch, the product located in the punching notch can be sucked downward into the collection box, further preventing the product from jumping upward from the punching notch. Attached Figure Description

[0018] To more clearly illustrate the technical solutions in the embodiments of the present invention, the accompanying drawings used in the description of the embodiments will be briefly introduced below.

[0019] Figure 1 This is a schematic diagram of a silicone product.

[0020] Figure 2 This is a cross-sectional view of the stamping apparatus disclosed in Embodiment 1;

[0021] Figure 3 This is a structural diagram of the stamping device disclosed in Example 1;

[0022] Figure 4 This is an installation view of the punch and ejector pin disclosed in Example 1;

[0023] Figure 5 This is a structural diagram of the die portion disclosed in Example 2. Detailed Implementation

[0024] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention.

[0025] Example 1

[0026] Figure 1 The image shows a semi-finished product of silicone rubber, which is formed by vulcanization and compression molding. It includes a frame waste A and several neatly arranged products B.

[0027] Figure 2 The stamping device shown is used to press... Figure 1 Product B is punched and separated from the edge scrap A. The above-mentioned stamping device includes a punch 100, a die 200 and an ejector 300. The punch is located above the die, and the punch and die are movably connected by a guide assembly. The top of the punch is provided with an upper locking template fixed to the die head of the stamping machine, and the bottom of the die is provided with a lower locking template fixed to the stamping machine platform.

[0028] The punch portion 100 consists of a first fixing component, several punches 101, and a product pressure plate 102. The first fixing component includes a first pressure plate, a punching plate, and pads. The punching plate 104 has a first mounting hole for the punches to pass through. The straight part of the punch passes through the first mounting hole. The first pressure plate 103 is disposed on the side of the punching plate corresponding to the upper locking template and presses down on the end of the punch 101 to fix the punch. The top ends of the several punches are fixed in the first fixing component, and the bottom ends extend towards the die portion 200. When the punch portion closes downward with the die portion, the bottom ends of the punches 101 are inserted into the corresponding punching notches 2011 in the die portion 200. Two pads 105 are disposed on the side of the first pressure plate corresponding to the locking template, and the pads 105 form a cavity 107 between the upper locking template and the first pressure plate. The product pressure plate is disposed below the punching plate, and the bottom ends of the punches protrude from the product pressure plate. The product pressure plate and the punching plate are connected by springs and equal-height bolts. During the mold closing process of the protrusion and the die, the product pressure plate 102 contacts the semi-finished product before the punch and presses the cut part into the die.

[0029] The ejector section 300 is basically composed of a second fixing component, a driving component 301, and ejector pins 302 corresponding to punches 101. The second fixing component is disposed in the cavity, and the driving component 301 drives the second fixing component to move up and down in the cavity. The second fixing component includes a second pressure plate and an ejector plate. The ejector plate is provided with a second mounting hole for the ejector pin to pass through. The second pressure plate 303 is disposed on the side of the ejector plate 304 corresponding to the locking template 400 to fix the ejector pin 302. The top end of the ejector pin 302 is fixed in the second fixing component, and the bottom end is inserted downward into the through hole that runs vertically through the punch 101. When the punch is not closed with the die, the bottom end of the ejector pin is located in the through hole. When the punch and die are closed, the driving component drives the ejector pin downward so that its bottom end protrudes from the punch.

[0030] The driving component 301 is configured as two cylinders located on both sides of the locking template 400. The cylinder body is connected to the side of the locking template, and the bottom end of the telescopic rod is connected to the second fixing component. Preferably, a U-shaped groove 3031 is provided on each side of the second pressure plate 303, and the telescopic rod of the cylinder is located in the U-shaped groove. An upper nut located above the second fixing component and a lower nut located below the second fixing component are provided on the telescopic rod of the cylinder. The telescopic rod of the cylinder and the second fixing component are configured as a detachable structure, which facilitates the overall disassembly of the second fixing component.

[0031] The die part includes a die plate 201 disposed above the lower locking die plate, a punching notch 2011 disposed in the die plate, and a collection box disposed on one side of the die plate 201 corresponding to the lower locking die plate, into which product B falls and is collected.

[0032] Example 2

[0033] This embodiment is based on Embodiment 1.

[0034] A horizontal suction plate 600 is installed inside the collection box 500. Several suction ports are provided on the top of the suction plate. A material discharge port 700 is formed between the end of the suction plate corresponding to the front side of the press and the inner wall of the collection box. A push plate 800 is installed above the suction plate. A horizontal cylinder 900 is installed outside the die plate to drive the push plate towards or away from the front side of the press. Preferably, the bottom of the push plate has bristles that contact the upper surface of the suction plate. The suction plate sucks up the product B, which is punched into the punching notch 2011, from below. Product B falls onto the suction plate, and the horizontal cylinder drives the push plate 800 to move it towards the material discharge port. Product B falls from the material discharge port into the collection box below.

[0035] Preferably, the material collection box is equipped with a drawer box 510 located below the suction plate and pullable towards the front of the press. Products falling from the discharge port enter the drawer box. The pull-out drawer box facilitates the removal of products.

[0036] The above description of the disclosed embodiments enables those skilled in the art to make or use the invention. Various modifications to the above embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the invention. Therefore, the invention is not to be limited to the embodiments shown herein, but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A silicone rubber multi-press device, characterized in that, It includes a punch (100), a die (200) and an ejector (300), wherein the punch is disposed above the die, and the punch and the die are movably connected by a guide assembly; The top of the punch is provided with an upper locking template (400) fixed to the press head, and the bottom of the die is provided with a lower locking template fixed to the press platform. The punch portion includes a first fixing component and a plurality of punches (101). The top ends of the plurality of punches are fixed in the first fixing component, and the bottom ends extend toward the die portion (200). When the punch portion closes downward with the die portion, the bottom ends of the punches are inserted into the corresponding punching notch (2011) in the die portion. The ejector part (300) includes a second fixing component, a driving component (301), and ejector pins (302) corresponding to the punch (101). The first fixing component has a cavity located above the punch, and the second fixing component is disposed in the cavity. The driving component drives the second fixing component to move up and down in the cavity. The top end of the ejector pin is fixed in the second fixing component, and the bottom end is inserted downward into the through hole that runs vertically through the punch (101). When the punch is not closed with the die (200), the bottom end of the ejector pin is located in the through hole. When the punch and the die are closed, the driving component drives the ejector pin downward so that its bottom end protrudes from the punch. The first fixing component includes a first pressure plate (103), a punching plate (104), and a pad (105). The punching plate has a first mounting hole for the punch to pass through. The first pressure plate is disposed on one side of the punching plate corresponding to the locking template to fix the punch (101). Two pads are disposed on one side of the first pressure plate corresponding to the locking template. The pads (105) form a cavity between the locking template (400) and the first pressure plate (103) for accommodating the second fixing component. The second fixing component includes a second pressure plate (303) and an ejector plate (304). The ejector plate is provided with a second mounting hole for the ejector pin to pass through. The second pressure plate is disposed on one side of the ejector plate (304) corresponding to the locking template to fix the ejector pin.

2. The stamping device according to claim 1, characterized in that, The driving component is configured as two cylinders located on both sides of the locking template (400), the cylinder body of the cylinder is connected to the side of the locking template, and the bottom end of the telescopic rod is connected to the second fixing component.

3. The stamping device according to claim 2, characterized in that, The second fixing component has a U-shaped groove (3031) on each side, and the telescopic rod of the cylinder is located in the U-shaped groove; the telescopic rod of the cylinder is provided with an upper nut located above the second fixing component and a lower nut located below the second fixing component.

4. The stamping device according to claim 1, characterized in that, The die part includes a die plate (201) disposed above the lower locking die plate, and the punching notch (2011) is disposed in the die plate (201). A collection box (500) is disposed on one side of the die plate (201) corresponding to the lower locking die plate.

5. The stamping device according to claim 4, characterized in that, A horizontal suction plate (600) is provided inside the collection box (500). Several suction ports are provided on the top of the suction plate (600). A material discharge port (700) is formed between the end of the suction plate (600) corresponding to the worker's standing position and the inner wall of the collection box (500). A push plate (800) is provided above the suction plate (600). A horizontal cylinder (900) is provided outside the concave template (201) to drive the push plate (800) to move closer to or away from the standing position.

6. The stamping device according to claim 5, characterized in that, The bottom of the push plate (800) is provided with bristles that contact the upper surface of the suction plate (600).

7. The stamping device according to claim 5, characterized in that, The collection box (500) is provided with a drawer box (510) located below the suction plate (600) and that can be pulled out toward the standing position. Products falling from the discharge port (700) enter the drawer box (510).

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