Rapid demolding mechanism of injection mold

Abstract

The utility model discloses a quick demolding mechanism for an injection mold, and relates to the technical field of injection molds, the quick demolding mechanism comprises a bottom plate, an ejection device is fixedly arranged in the middle of the top end of the bottom plate, the ejection device comprises a fixed box, and the inner walls of the two sides of the fixed box are jointly and rotationally connected with a third rotating shaft; the outer surface of the third rotating shaft is fixedly sleeved with two third bevel gears, the outer surfaces of the two third bevel gears are both in meshed connection with fourth bevel gears, one ends of the two fourth bevel gears are both fixedly connected with fourth rotating shafts, and one ends of the two fourth rotating shafts are both fixedly sleeved with two cams; the quick demolding mechanism comprises four cams, round blocks are arranged on the upper portions of the outer surfaces of the four cams, ejector rods are fixedly connected to the upper portions of the outer surfaces of the four round blocks, and ejector plates are fixedly connected to the top ends of the four ejector rods. The quick demolding mechanism for the injection mold can effectively and quickly demold, and can effectively cool the injection mold.

Description

Technical Field

[0001] The present application relates to the technical field of injection molds, and in particular to a rapid demoulding mechanism for injection molds. Background Art

[0002] An injection mold is a tool for producing plastic products. It is mainly composed of a cavity, a core, a pouring system, a cooling system, an ejection system and other parts. The working principle is to inject the heated and melted plastic material into the mold cavity under high pressure by an injection molding machine. After cooling and solidification, a molded plastic product is obtained. The injection mold needs to be demolded after molding.

[0003] After checking the public (announcement) number: CN220390211U, a demoulding mechanism for a rapid injection mold is disclosed. This technology discloses "including a lower mold, an upper mold, a column core, and a controller. The lower mold is installed on a mold bracket, and the upper mold is connected to the mold bracket through a mold lifting mechanism; the column core cooperates with the through hole, and the through hole is arranged on any one of the lower mold and the upper mold or is located on the lower mold and the upper mold at the same time. The column core is connected to a telescopic mechanism, and the telescopic mechanism is used to drive the column core to insert into the through hole or pull it out from the through hole. The technical solution has the advantages of arranging a coating sponge, a driving motor and other components at the position of the column core. Before the column core is inserted into the through hole, the driving motor will drive the coating sponge to rotate and rotate around the column core to apply a demoulding agent on the outside of the column core. No artificial demoulding agent is required, which makes it more convenient to demould the column core, and avoids the problem of deformation of plastic products due to the difficulty of the column core falling off.

[0004] With respect to the above-mentioned related technologies, the inventor believes that the injection mold needs to be demolded after the injection molding is completed. However, the existing injection molds on the market cannot be demolded quickly during the demolding process, and the mold needs to be cooled after the injection molding is completed. The existing mold equipment cannot effectively cool the injection mold, so it needs to be improved. Utility Model Content

[0005] The purpose of the present application is to provide a rapid demoulding mechanism for an injection mold, so as to improve the problem that the mold cannot be demoulded quickly and the injection mold cannot be effectively cooled.

[0006] The present application provides a rapid demoulding mechanism for an injection mold, which adopts the following technical solution:

[0007] A quick demoulding mechanism for an injection mold, comprising a bottom plate, a cooling device is fixedly provided at the top of the bottom plate, an ejection device is fixedly provided at the middle of the top of the bottom plate, the ejection device comprises a fixed box, the bottom end of the fixed box is fixedly connected to the top of the bottom plate, the top of the fixed box is fixedly connected to a first support plate, the inner walls on both sides of the fixed box are rotatably connected to a third rotating shaft, one end of the fixed box is provided with a first motor, the output end of the first motor passes through one end of the fixed box and is fixedly connected to one end of the third rotating shaft, the outer surface of the third rotating shaft is fixedly sleeved with two third bevel gears, the two third bevel gears The outer surfaces of the two fourth bevel gears are meshedly connected, and one end of the two fourth bevel gears is fixedly connected to the fourth rotating shaft, and one end of the two fourth rotating shafts respectively penetrates through an inner wall of one side of the fixed box and is rotatably connected to the second support plate, the bottom end of the second support plate is fixedly connected to the top of the bottom plate, and the top of the first support plate and the second support plate are jointly fixedly connected to the placing frame, and one end of the two fourth rotating shafts are fixedly sleeved with two cams, and the upper parts of the outer surfaces of the four cams are provided with round blocks, and the upper parts of the outer surfaces of the four round blocks are fixedly connected to push rods, and the top ends of the four push rods are fixedly connected to the top plate.

[0008] By adopting the above technical solution, when it is necessary to open the first motor in the ejection device, the output end of the first motor rotates to drive the third shaft to rotate in the inner walls on both sides of the fixed box, the third shaft rotates to drive the two third bevel gears to rotate, the two third bevel gears respectively drive the fourth bevel gears to rotate, the two fourth bevel gears respectively drive the fourth shaft to rotate, the fourth shaft drives the two cams to rotate, the cams rotate in the inner wall of the second through groove, because the cams are irregular in shape, the two cams rotate to drive the two round blocks to move reciprocatingly upward, and the cams rotate to drive the ejector rod to move reciprocatingly upward, the outer surface of the ejector rod slides in the inner wall of the first through groove, and the ejector rod ejects the injection mold from the inner wall of the placement frame, thereby achieving the purpose of effectively and quickly demolding the injection mold.

[0009] Optionally, the cooling device includes a cooling tank, a funnel is fixedly connected to the top of the cooling tank, the top of the base plate is fixedly connected to a support, the top of the support is fixedly connected to a pump body, the output end of the pump body is penetrated and connected to a water inlet pipe, the input end of the pump body is penetrated and connected to a water outlet pipe, one end of the water inlet pipe and the water outlet pipe are respectively penetrated and connected to the outer surface of the cooling tank, the inner walls on both sides of the cooling tank are jointly rotatably connected to the first rotating shaft, the outer surface of the cooling tank is provided with a second motor, the output end of the second motor penetrates the outer surface of the cooling tank and is fixedly connected to one end of the first rotating shaft, one end of the first rotating shaft is fixedly sleeved with a first bevel gear, the outer surface of the first bevel gear is meshed with two second bevel gears, one end of the two second bevel gears are fixedly connected to the second rotating shaft, the outer surfaces of the first rotating shaft and the two second rotating shafts are jointly penetrated and connected to a support box, and the outer surfaces of the two second rotating shafts are fixedly sleeved with blades.

[0010] By adopting the above technical scheme, water is first poured into the funnel, and the water enters the cooling tank. When the injection mold needs to be cooled, the second motor is turned on, and the output end of the second motor rotates to drive the first shaft to rotate, and the rotation of the first shaft drives the first bevel gear to rotate, and the rotation of the first bevel gear drives the two second bevel gears to rotate, and the rotation of the two second bevel gears respectively drives the second shaft to rotate, and one end of the two second shafts rotates at one end of the connecting frame, and the two second shafts respectively drive the blades to rotate, and the two blades rotate in different directions respectively, which can speed up the flow of water, and turn on the pump body, and the pump body sucks the water in the cooling tank from the water inlet pipe into the pump body, and the water enters the water outlet pipe through the pump body and flows back into the cooling tank, and the water in the water inlet pipe and the water outlet pipe circulates, and the flowing water cools the injection mold in the inner wall of the placement frame, thereby achieving the purpose of effectively cooling the injection mold.

[0011] Optionally, the bottom end of the placement frame is fixedly connected to four hollow columns, and the top ends of the four top rods all penetrate the lower inner wall of the hollow columns.

[0012] By adopting the above technical solution, the outer surface of the push rod slides in the lower inner wall of the hollow column.

[0013] Optionally, the cams corresponding to the positions fit with the outer surface of the round block, and the top of the bottom plate is provided with four second through grooves for cooperating with the cams.

[0014] By adopting the above technical solution, since the cams are in an irregular shape, the two cams rotate to respectively drive the two round blocks to move reciprocatingly upward.

[0015] Optionally, the lower inner wall of the placement frame is provided with four first through grooves for use with the top plate, and the outer surface of the top plate is in contact with the inner walls of the first through grooves.

[0016] By adopting the above technical solution, the outer surface of the ejector rod slides in the inner wall of the first through groove, and the ejector rod ejects the injection mold from the inner wall of the placement frame.

[0017] Optionally, one end of each of the two second rotating shafts is rotatably connected to a connecting frame, and outer surfaces of the two connecting frames are respectively fixedly connected to the inner wall of the cooling tank.

[0018] By adopting the above technical solution, one end of the two second rotating shafts rotates at one end of the connecting frame.

[0019] Optionally, a drain pipe is connected through the lower portion of the outer surface of the cooling tank, and a drain valve is fixedly connected to the outer surface of the drain pipe.

[0020] By adopting the above technical solution, the waste water can be discharged from the drain pipe by opening the drain valve.

[0021] Optionally, outer surfaces of the water inlet pipe and the water outlet pipe are respectively in contact with the inner wall of the placement frame.

[0022] By adopting the above technical solution, the water inlet pipe and the water outlet pipe are respectively located in the inner wall of the placement frame, and the water enters the water outlet pipe through the pump body and flows back into the cooling tank, forming a water circulation flow in the water inlet pipe and the water outlet pipe.

[0023] In summary, the present application includes at least one of the following beneficial technical effects:

[0024] 1. The utility model drives the ejector rod to move upward and reciprocatingly when the cam rotates, and the outer surface of the ejector rod slides in the inner wall of the first through groove, and the ejector rod ejects the injection mold from the inner wall of the placement frame, thereby achieving the purpose of effective and rapid demoulding of the injection mold;

[0025] 2. The utility model uses a pump body to draw water in the cooling tank from the water inlet pipe into the pump body, and the water enters the water outlet pipe through the pump body and flows back into the cooling tank. The flowing water cools the injection mold placed on the inner wall of the frame, thereby achieving the purpose of effectively cooling the injection mold. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 It is a schematic diagram of the structure of the utility model.

[0027] Figure 2 It is a schematic diagram of the ejection device of the utility model.

[0028] Figure 3 It is a schematic diagram of the cooling device of the utility model.

[0029] Figure 4 This utility model Figure 3 A schematic diagram of the enlarged structure in the middle.

[0030] In the figure, 1, bottom plate; 2, cooling device; 3, ejection device; 201, cooling tank; 202, funnel; 203, water inlet pipe; 204, pump body; 205, water outlet pipe; 206, support; 207, first rotating shaft; 208, second motor; 209, first bevel gear; 210, second bevel gear; 211, support box; 212, second rotating shaft; 213, connecting frame; 214, blade; 215, drain pipe; 216, drain valve; 301, fixing box; 302, first support plate; 303, third rotating shaft; 304, first motor; 305, third bevel gear; 306, fourth bevel gear; 307, fourth rotating shaft; 308, second support plate; 309, cam; 310, round block; 311, push rod; 312, hollow column; 313, top plate; 314, placement frame; 315, first through slot; 316, second through slot. DETAILED DESCRIPTION

[0031] The following is combined with Figure 1 -Attached Figure 4 , further details of this application are given.

[0032] Example

[0033] A quick demoulding mechanism for an injection mold comprises a bottom plate 1, cooling devices 2 are provided on both sides of the top of the bottom plate 1, and an ejection device 3 is provided in the middle of the top of the bottom plate 1.

[0034] The ejection device 3 includes a fixed box 301, a first support plate 302, a top plate 313, a second support plate 308 and a placement frame 314. The bottom end of the fixed box 301 is connected to the top end of the bottom plate 1 by welding, the top of the fixed box 301 is connected to the bottom end of the first support plate 302 by welding, the top of the bottom plate 1 is connected to the bottom end of the second support plate 308 by welding, and the top ends of the first support plate 302 and the second support plate 308 are welded to the placement frame 314.

[0035] The inner walls of both sides of the fixed box 301 are connected to the third rotating shaft 303 for rotation together, the first motor 304 is located at one end of the fixed box 301, the output end of the first motor 304 passes through one end of the fixed box 301 and is engaged with one end of the third rotating shaft 303, the outer surface of the third rotating shaft 303 is fixedly sleeved with two third bevel gears 305 by welding, the outer surfaces of the two third bevel gears 305 are meshed with fourth bevel gears 306, one end of the two fourth bevel gears 306 is welded with a fourth rotating shaft 307, one end of the fourth rotating shaft 307 rotates at one end of the second support plate 308, and the outer surface of the fourth rotating shaft 307 is welded Two cams 309 are fixedly sleeved, and the cams 309 are irregularly shaped. The upper parts of the outer surfaces of the two cams 309 are fitted with round blocks 310. The upper parts of the outer surfaces of the round blocks 310 are connected to the bottom end of the push rod 311 by welding. The bottom end of the placement frame 314 is fixedly connected with four hollow columns 312. The outer surface of the push rod 311 slides in the lower inner wall of the hollow column 312. The lower inner wall of the placement frame 314 is provided with four first through grooves 315 that can pass through the outer surface of the top plate 313. The top of the bottom plate 1 is provided with four second through grooves 316 that cooperate with the rotation of the cam 309, and the cam 309 rotates on the inner wall of the second through groove 316.

[0036] The cooling device 2 includes a cooling tank 201, a support 206, a water inlet pipe 203, a second rotating shaft 212, a pump body 204 and a water outlet pipe 205. The bottom end of the cooling tank 201 is connected to the top of the bottom plate 1 by welding, and the bottom end of the support 206 is connected to the top of the bottom plate 1 by welding. The cooling tank 201 and the support 206 are respectively located at the diagonal positions of the bottom plate 1. The top of the support 206 is connected to the bottom end of the pump body 204 by welding. The output end of the pump body 204 is connected with the water inlet pipe 203, the input end of the pump body 204 is connected with the water outlet pipe 205, one end of the water inlet pipe 203 and the water outlet pipe 205 are connected with the outer surface of the cooling tank 201 respectively, the water inlet pipe 203 and the water outlet pipe 205 are respectively located in the inner wall of the placement frame 314, enter the water outlet pipe 205 through the pump body 204 and flow back into the cooling tank 201, forming a water circulation flow in the water inlet pipe 203 and the water outlet pipe 205.

[0037] The top of the cooling tank 201 is connected to the bottom of the funnel 202 by welding, and a first rotating shaft 207 is provided inside the cooling tank 201. The two ends of the first rotating shaft 207 rotate with the inner walls on both sides of the cooling tank 201 respectively, and a second motor 208 is provided on the outer surface of the cooling tank 201. The outer surface of the first rotating shaft 207 is welded with a first bevel gear 209, and the outer surface of the first bevel gear 209 is meshed and connected with two second bevel gears 210, and one end of the two second bevel gears 210 is respectively connected to one end of the second rotating shaft 212 by welding, and the outer surface of the first rotating shaft 207 and the two second rotating shafts 212 are penetrated by a support box 211, and two connecting frames 213 are welded to the inner wall of the cooling tank 201, and the back-to-back ends of the two second rotating shafts 212 rotate with one end of the opposite surface of the two connecting frames 213 respectively.

[0038] A drain pipe 215 penetrates the lower part of the outer surface of the cooling tank 201, and a drain valve 216 is engaged with the upper part of the outer surface of the drain pipe 215. When the drain valve 216 is opened, waste water can be discharged from the drain pipe 215.

[0039] The implementation principle of the embodiment of the present application is as follows: first, water is poured into the funnel 202, and the water enters the cooling tank 201. When the injection mold needs to be cooled, the second motor 208 is turned on, and the output end of the second motor 208 rotates to drive the first rotating shaft 207 to rotate, and the first rotating shaft 207 rotates to drive the first bevel gear 209 to rotate, and the first bevel gear 209 rotates to drive the two second bevel gears 210 to rotate, and the two second bevel gears 210 rotate to drive the second rotating shaft 212 to rotate respectively, and one end of the two second rotating shafts 212 rotates at one end of the connecting frame 213. The two second rotating shafts 212 drive the blades 214 to rotate respectively. The two blades 214 rotate in different directions respectively, which can speed up the flow of water. The pump body 204 is turned on. The pump body 204 sucks the water in the cooling tank 201 from the water inlet pipe 203 into the pump body 204. The water enters the water outlet pipe 205 through the pump body 204 and flows back into the cooling tank 201. The water in the water inlet pipe 203 and the water outlet pipe 205 circulates. The flowing water cools the injection mold in the inner wall of the placement frame 314, thereby achieving the purpose of effectively cooling the injection mold.

[0040] When it is necessary to open the first motor 304 in the ejection device 3, the output end of the first motor 304 rotates to drive the third rotating shaft 303 to rotate in the inner walls on both sides of the fixed box 301, the third rotating shaft 303 rotates to drive the two third bevel gears 305 to rotate, the two third bevel gears 305 respectively drive the fourth bevel gears 306 to rotate, the two fourth bevel gears 306 rotate to respectively drive the fourth rotating shaft 307 to rotate, the fourth rotating shaft 307 drives the two cams 309 to rotate, the cam 309 rotates in the inner wall of the second through groove 316, because the cam 309 is an irregular shape, the two cams 309 rotate to drive the two round blocks 310 to move reciprocatingly upward, and the cam 309 rotates to drive the ejector rod 311 to move reciprocatingly upward, the outer surface of the ejector rod 311 slides in the inner wall of the first through groove 315, and the ejector rod 311 ejects the injection mold from the inner wall of the placement frame 314, thereby achieving the purpose of effective and rapid demolding of the injection mold.

[0041] The embodiments of this specific implementation are all preferred embodiments of the present application, and are not intended to limit the protection scope of the present application. The same components are represented by the same figure marks. Therefore, any equivalent changes made based on the structure, shape, and principle of the present application should be included in the protection scope of the present application.

Claims

1. A quick demoulding mechanism for an injection mold, comprising a bottom plate (1), characterized in that: A cooling device (2) is fixedly provided at the top end of the bottom plate (1), and an ejection device (3) is fixedly provided at the middle portion of the top end of the bottom plate (1); The ejection device (3) comprises a fixed box (301), the bottom end of the fixed box (301) is fixedly connected to the top end of the bottom plate (1), the top end of the fixed box (301) is fixedly connected to a first support plate (302), the inner walls on both sides of the fixed box (301) are rotatably connected to a third rotating shaft (303), one end of the fixed box (301) is provided with a first motor (304), the output end of the first motor (304) passes through one end of the fixed box (301) and is fixedly connected to one end of the third rotating shaft (303), the outer surface of the third rotating shaft (303) is fixedly sleeved with two third bevel gears (305), the outer surfaces of the two third bevel gears (305) are meshingly connected to fourth bevel gears (306), and the two fourth bevel gears (306) are meshingly connected to each other. ) are fixedly connected to a fourth rotating shaft (307) at one end, one end of the two fourth rotating shafts (307) respectively penetrates through an inner wall of one side of the fixed box (301) and is rotatably connected to a second support plate (308) together, the bottom end of the second support plate (308) is fixedly connected to the top of the bottom plate (1), the tops of the first support plate (302) and the second support plate (308) are fixedly connected to a placement frame (314), one end of the two fourth rotating shafts (307) are fixedly sleeved with two cams (309), the upper portions of the outer surfaces of the four cams (309) are provided with round blocks (310), the upper portions of the outer surfaces of the four round blocks (310) are fixedly connected to push rods (311), and the tops of the four push rods (311) are fixedly connected to a top plate (313).

2. The rapid demoulding mechanism for injection mold according to claim 1, characterized in that: The cooling device (2) comprises a cooling tank (201), the top of the cooling tank (201) is fixedly connected to a funnel (202), the top of the bottom plate (1) is fixedly connected to a support (206), the top of the support (206) is fixedly connected to a pump body (204), the output end of the pump body (204) is connected through a water inlet pipe (203), the input end of the pump body (204) is connected through a water outlet pipe (205), one end of the water inlet pipe (203) and one end of the water outlet pipe (205) are respectively connected through the outer surface of the cooling tank (201), the inner walls on both sides of the cooling tank (201) are connected to a first rotating shaft (207) for rotation, and the cooling tank (201) is connected through a water inlet pipe (203). A second motor (208) is provided on the outer surface, and the output end of the second motor (208) passes through the outer surface of the cooling tank (201) and is fixedly connected to one end of the first rotating shaft (207); one end of the first rotating shaft (207) is fixedly sleeved with a first bevel gear (209); the outer surface of the first bevel gear (209) is meshingly connected with two second bevel gears (210); one end of the two second bevel gears (210) are fixedly connected with a second rotating shaft (212); the first rotating shaft (207) and the outer surfaces of the two second rotating shafts (212) are jointly penetrated by a support box (211); the outer surfaces of the two second rotating shafts (212) are fixedly sleeved with blades (214).

3. The rapid demoulding mechanism for injection mold according to claim 1, characterized in that: The bottom end of the placement frame (314) is fixedly connected to four hollow columns (312), and the top ends of the four top rods (311) penetrate the lower inner wall of the hollow column (312).

4. The rapid demoulding mechanism for injection mold according to claim 1, characterized in that: The cams (309) corresponding to the positions are fitted to the outer surfaces of the round blocks (310), and the top of the bottom plate (1) is provided with four second through slots (316) for use with the cams (309).

5. The rapid demoulding mechanism for injection mold according to claim 1, characterized in that: The lower inner wall of the placement frame (314) is provided with four first through slots (315) for use with the top plate (313), and the outer surface of the top plate (313) is in contact with the inner wall of the first through slots (315).

6. The rapid demoulding mechanism for injection mold according to claim 2, characterized in that: One end of each of the two second rotating shafts (212) is rotatably connected to a connecting frame (213), and the outer surfaces of the two connecting frames (213) are respectively fixedly connected to the inner wall of the cooling tank (201).

7. The rapid demoulding mechanism for injection mold according to claim 2, characterized in that: A drainage pipe (215) is connected to the lower portion of the outer surface of the cooling tank (201), and a drainage valve (216) is fixedly connected to the outer surface of the drainage pipe (215).

8. The rapid demoulding mechanism for injection mold according to claim 2, characterized in that: The outer surfaces of the water inlet pipe (203) and the water outlet pipe (205) are respectively fitted with the inner wall of the placement frame (314).

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