Plastic product processing injection mold

Abstract

The utility model provides a plastic product processing injection mold, and relates to the technical field of injection molds, the plastic product processing injection mold comprises a fixing frame, a lower mold arranged on the inner wall of the fixing frame, an air cylinder arranged on the top of the fixing frame and an upper mold arranged on an air cylinder piston rod, a fixing box is arranged on the side wall of the fixing frame, and rotating handles are arranged at the two ends of the lower mold; one set of rotating handles penetrates through one side of the fixing frame to extend into the fixing box, the other set of rotating handles penetrates through the other side of the fixing frame to extend outwards, a first spring is connected to the rod wall of the rotating handle located in the fixing box in series, a limiting assembly is further arranged on the rotating handle located in the fixing box, a moving assembly is arranged on the side wall of the fixing frame, and a connecting block is arranged on the moving assembly. A plurality of knocking columns are arranged on the side wall of the connecting block. After a plastic product is formed, the lower mold can be turned downwards and the surface of the lower mold is knocked, so that the product is quickly separated under the action of gravity, and the demolding speed of the product can be increased.

Description

Technical Field

[0001] The utility model relates to the technical field of injection molds, in particular to an injection mold for processing plastic products. Background Art

[0002] An injection mold is a tool for producing plastic products. It is also a tool that gives plastic products a complete structure and precise dimensions. Injection molding is a processing method used in mass production of certain parts with complex shapes. Specifically, it refers to the high-pressure injection of heated and melted plastic into the mold cavity by an injection molding machine. After cooling and solidification, a molded product is obtained. Injection molds are divided into two types according to their molding characteristics: thermosetting plastic molds, automotive molds, and thermoplastic plastic molds.

[0003] The current mold has the following defects during use: After the plastic product is injection molded, the mold is generally lifted up from the bottom when demolding, because the plastic product has a high temperature and will adhere to the mold, and the demolding speed is slow. Utility Model Content

[0004] The utility model aims to solve the problem that the existing injection mold has a slow demoulding speed when the plastic product attached to the inside is demoulded.

[0005] In order to achieve the above-mentioned invention object, the utility model provides the following technical solutions:

[0006] A plastic product processing injection mold comprises a fixed frame, a lower mold arranged on the inner wall of the fixed frame, a cylinder arranged on the top of the fixed frame and an upper mold arranged on the cylinder piston rod, the side wall of the fixed frame is provided with a fixed box, both ends of the lower mold are provided with a turning handle, one group of the turning handles extend through one side of the fixed frame to the inside of the fixed box, and another group of the turning handles extend outward through the other side of the fixed frame, a first spring is connected in series on the turning handle rod wall located inside the fixed box, and a limiting component is also provided on the turning handle located inside the fixed box, the side wall of the fixed frame is provided with a moving component, the moving component is provided with a connecting block, and the side wall of the connecting block is provided with a plurality of knocking columns.

[0007] As a preferred technical solution of the present application, the limit assembly includes a ratchet arranged on the rod wall of the turning handle located inside the fixed box, a torsion spring shaft arranged on the inner wall of the fixed box, and a pawl sleeved on the outside of the torsion spring shaft and meshing with the ratchet.

[0008] As a preferred technical solution of the present application, a pull rope is provided on the upper surface of the pawl, one end of the pull rope away from the pawl extends outward through the top of the fixing box, and a buckle is provided at the extended end of the pull rope outside the fixing box.

[0009] As a preferred technical solution of the present application, the moving assembly includes a support frame arranged on the side wall of the fixed frame, a motor arranged on the side wall of the support frame, a screw rod arranged at the output end of the motor, and a moving seat slidably arranged inside the support frame, and the moving seat is threadedly connected to the screw rod.

[0010] As a preferred technical solution of the present application, the moving assembly also includes a rotating column rotatably arranged on the top of the moving seat, a gear ring arranged on the outer wall of the rotating column, and a gear groove arranged on the inner wall of the support frame and meshing with the gear ring, and the connecting block is arranged on the top of the rotating column.

[0011] As a preferred technical solution of the present application, the knocking column includes a fixed cylinder arranged on the side wall of the connecting block, a sliding rod slidably arranged inside the fixed cylinder, a rubber ball arranged at one end of the sliding rod away from the fixed cylinder, and a second spring arranged between the sliding rod and the inner wall of the fixed cylinder.

[0012] As a preferred technical solution of the present application, the movable components are provided with two groups, and the two groups of movable components are respectively arranged on both sides of the fixed frame, wherein the end faces of the two groups of screw rods are provided with rotating rods passing through the support frame, and the two groups of rotating rods are connected by a pulley for transmission.

[0013] As a preferred technical solution of the present application, a fan is provided on the side wall of the fixing frame, an air cavity connected to the output end of the fan is provided at the bottom of the fixing frame, a plurality of exhaust holes are provided on the inner bottom wall of the fixing frame, and a baffle is provided at the bottom edge of the fixing frame.

[0014] Compared with the prior art, the utility model has the following beneficial effects:

[0015] 1. After the plastic product is formed in the mold, the lower mold can be automatically turned downward by the cooperation of the set handle and the first spring, so that the opening of the lower mold faces downward. The lower mold can be limited by the cooperation of the set ratchet, torsion spring shaft and pawl to prevent the lower mold from shaking. At this time, the plastic product will fall off from the lower mold under the action of gravity, and there is no need to use other equipment to eject it from the lower mold, thereby improving the demoulding speed of the product.

[0016] 2. After the lower mold is flipped down, the knocking column on the moving seat can be driven to move horizontally and rotate along the length direction of the lower mold through the cooperation of the set motor, screw, moving seat, rotating column, gear ring, tooth groove and knocking column, so that the outer wall of the lower mold can be continuously knocked to make the lower mold vibrate, which is convenient for the product to fall off from the lower mold, thereby further improving the product demoulding speed. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a three-dimensional structural diagram of the utility model;

[0018] Figure 2 This is a bottom view of the structure of the utility model;

[0019] Figure 3 This is a structural diagram of the limit assembly of the utility model;

[0020] Figure 4 This is a structural diagram of a knocking column of the utility model;

[0021] Figure 5 For the utility model Figure 1 Enlarged structural diagram at point A in the middle.

[0022] Indicated in the figure:

[0023] 1. Fixed frame; 101. Baffle; 102. Exhaust hole; 2. Lower mold; 3. Cylinder; 4. Upper mold; 5. Turning handle; 6. Fixed box; 601. Torsion spring shaft; 7. First spring; 8. Ratchet; 9. Paw; 10. Pull rope; 1001. Buckle; 11. Support frame; 1101. Tooth groove; 12. Motor; 1201. Screw rod; 13. Moving seat; 14. Rotating column; 1401. Gear ring; 15. Connecting block; 16. Fixed cylinder; 1601. Second spring; 17. Sliding rod; 1701. Rubber ball; 18. Rotating rod; 1801. Pulley; 19. Fan. DETAILED DESCRIPTION

[0024] To make the purpose, technical solution and advantages of the embodiment of the utility model clearer, the technical solution in the embodiment of the utility model will be described clearly and completely in conjunction with the accompanying drawings. Obviously, the described embodiment is a part of the embodiment of the utility model, not all of the embodiments.

[0025] like Figure 1 and Figure 2 As shown, this embodiment proposes a plastic product processing injection mold, including a fixing frame 1, a lower mold 2 arranged on the inner wall of the fixing frame 1, a cylinder 3 arranged on the top of the fixing frame 1 and an upper mold 4 arranged on the piston rod of the cylinder 3, a fixing box 6 is arranged on the side wall of the fixing frame 1, and a turning handle 5 is arranged at both ends of the lower mold 2, one group of turning handles 5 passes through one side of the fixing frame 1 and extends to the inside of the fixing box 6, and another group of turning handles 5 passes through the other side of the fixing frame 1 and extends outward, a first spring 7 is connected in series on the rod wall of the turning handle 5 located inside the fixing box 6, and a limit assembly is also arranged on the turning handle 5 located inside the fixing box 6, a moving assembly is arranged on the side wall of the fixing frame 1, a connecting block 15 is arranged on the moving assembly, and a plurality of knocking columns are arranged on the side wall of the connecting block 15;

[0026] After the plastic product is injection molded, the cylinder 3 is started to drive the upper mold 4 to move upward and separate from the lower mold 2. At this time, the handle 5 is turned to drive the lower mold 2 to flip downward and twist the first spring 7. After the lower mold 2 opens downward, the handle 5 and the lower mold 2 are positioned by the limit assembly. At this time, the plastic product will fall from the lower mold 2 under the action of gravity. There is no need to use equipment to eject the product from the lower mold 2, thereby increasing the demolding speed of the product. After the lower mold 2 flips down, the connecting block 15 can also be driven by the set moving assembly to move and rotate along the length direction of the lower mold 2, thereby driving the knocking column to continuously knock on the outer wall of the lower mold 2, causing the lower mold 2 to vibrate, further increasing the demolding speed of the product.

[0027] like Figure 3 As shown, as a preferred embodiment, on the basis of the above-mentioned manner, further, the limit assembly includes a ratchet 8 arranged on the rod wall of the turning handle 5 located inside the fixing box 6, a torsion spring shaft 601 arranged on the inner wall of the fixing box 6, and a pawl 9 sleeved on the outside of the torsion spring shaft 601 and meshing with the ratchet 8;

[0028] A pull rope 10 is provided on the upper surface of the ratchet 9. One end of the pull rope 10 away from the ratchet 9 passes through the top of the fixing box 6 and extends outward. A buckle 1001 is provided at the extended end of the pull rope 10 outside the fixing box 6.

[0029] After the handle 5 is turned to drive the lower mold 2 to flip down, the first spring 7 will have a force to drive the handle 5 to reverse and reset, but at this time the pawl 9 will be stuck on the ratchet 8, so the handle 5 cannot flip over, so that the lower mold 2 can be positioned after flipping down to prevent the lower mold 2 from shaking and affecting the detachment of the product. After the product is demolded, the pull rope 10 is pulled through the pull buckle 1001, and the pawl 9 is driven to flip upward and disengage from the ratchet 8. At this time, the ratchet 8 can rotate normally, and the first spring 7 is released from the force to drive the handle 5 to reverse and reset, so that the lower mold 2 can be automatically flipped up and reset.

[0030] like Figure 1 , Figure 2 and Figure 5 As shown, as a preferred embodiment, on the basis of the above-mentioned method, further, the moving assembly includes a support frame 11 arranged on the side wall of the fixed frame 1, a motor 12 arranged on the side wall of the support frame 11, a screw rod 1201 arranged at the output end of the motor 12, and a moving seat 13 slidably arranged inside the support frame 11, and the moving seat 13 is threadedly connected with the screw rod 1201;

[0031] The moving assembly further includes a rotating column 14 rotatably arranged on the top of the moving seat 13, a gear ring 1401 arranged on the outer wall of the rotating column 14, and a tooth groove 1101 arranged on the inner wall of the support frame 11 and meshing with the gear ring 1401, and a connecting block 15 is arranged on the top of the rotating column 14;

[0032] The starting motor 12 drives the screw 1201 to rotate, and the screw 1201 drives the moving seat 13 and the rotating column 14 to move inside the support frame 11. The rotating column 14 rotates while moving through the cooperation between the gear ring 1401 and the tooth groove 1101, thereby driving the knocking column on the connecting block 15 to move horizontally and rotate, continuously knocking the surface of the lower mold 2, causing the lower mold 2 to vibrate and increase the demolding speed.

[0033] It should be noted that the knocking column includes a fixed cylinder 16 arranged on the side wall of the connecting block 15, a sliding rod 17 slidably arranged inside the fixed cylinder 16, a rubber ball 1701 arranged at one end of the sliding rod 17 away from the fixed cylinder 16, and a second spring 1601 arranged between the sliding rod 17 and the inner wall of the fixed cylinder 16;

[0034] When the connecting block 15 rotates, it will drive the fixed cylinder 16 and the sliding rod 17 to rotate. The rubber ball 1701 on the sliding rod 17 will be compressed when it collides with the lower mold 2, and slide toward the inside of the fixed cylinder 16 through the sliding rod 17 and then squeeze the second spring 1601. When the rubber ball 1701 is separated from the lower mold 2, the second spring 1601 will drive the sliding rod 17 and the rubber ball 1701 to rebound and reset, so that the lower mold 2 can be continuously knocked, and the rubber ball 1701 can avoid scratches on the surface of the lower mold 2.

[0035] In addition, two groups of movable components are provided, and the two groups of movable components are respectively arranged on both sides of the fixed frame 1, wherein the end faces of the two groups of screw rods 1201 are provided with rotating rods 18 passing through the support frame 11, and the two groups of rotating rods 18 are connected by a pulley 1801 for transmission; the two sides of the surface of the lower mold 2 can be knocked at the same time through the two groups of movable components, so as to further improve the demolding speed of the product, and the other group of screw rods 1201 can be driven to rotate through the pulley 1801, thereby saving a motor 12 and saving costs.

[0036] like Figure 1 As shown, as a preferred embodiment, on the basis of the above-mentioned manner, further, a fan 19 is provided on the side wall of the fixing frame 1, a wind cavity connected to the output end of the fan 19 is provided at the bottom of the fixing frame 1, a plurality of exhaust holes 102 are provided on the inner bottom wall of the fixing frame 1, and a baffle 101 is provided at the bottom edge of the fixing frame 1;

[0037] During demoulding, the fan 19 can also be started to blow air into the air cavity inside the fixing frame 1, and then blow it toward the plastic product in the lower mold 2 from the exhaust hole 102, so as to increase the cooling speed of the product, thereby increasing the demoulding speed. Moreover, when the product falls onto the inner bottom wall of the fixing frame 1, the baffle 101 at the edge can be raised to block the product and prevent it from falling off the fixing frame 1.

[0038] The working principle of the utility model is as follows: after the plastic product is injection molded, the cylinder 3 is started to work and drive the upper mold 4 to move upward and separate from the lower mold 2. At this time, the turning handle 5 is turned to drive the lower mold 2 to flip downward and twist the first spring 7. After the lower mold 2 opens downward, the first spring 7 has a force to drive the turning handle 5 to reverse and reset, but at this time the pawl 9 will be stuck on the ratchet 8, so the turning handle 5 cannot be flipped, so that the lower mold 2 can be positioned after flipping down, avoiding the shaking of the lower mold 2 and affecting the detachment of the product. At this time, the plastic product will be pulled out from under the action of gravity. The product falls into the lower mold 2, and there is no need to use equipment to eject the product from the lower mold 2, thereby increasing the demoulding speed of the product; and after the lower mold 2 is flipped down, the motor 12 is started to drive the screw 1201 to rotate, and the screw 1201 will drive the moving seat 13 and the rotating column 14 to move inside the support frame 11, and the rotating column 14 will rotate while moving through the cooperation of the gear ring 1401 and the tooth groove 1101, thereby driving the knocking column on the connecting block 15 to move horizontally and rotate, continuously knocking the surface of the lower mold 2, causing the lower mold 2 to vibrate and increase the demoulding speed.

[0039] The above embodiments are only used to illustrate the present invention and are not intended to limit the technical solutions described in the present invention. Although the present invention has been described in detail with reference to the above embodiments, the present invention is not limited to the above specific implementation methods. Therefore, any modification or equivalent replacement of the present invention; and all technical solutions and improvements thereof that do not depart from the spirit and scope of the invention are included in the scope of the claims of the present invention.

Claims

1. A plastic product processing injection mold, comprising a fixed frame (1), a lower mold (2) arranged on the inner wall of the fixed frame (1), a cylinder (3) arranged on the top of the fixed frame (1), and an upper mold (4) arranged on the piston rod of the cylinder (3), characterized in that: A fixing box (6) is provided on the side wall of the fixing frame (1), and turning handles (5) are provided at both ends of the lower mold (2). One group of turning handles (5) passes through one side of the fixing frame (1) and extends into the inside of the fixing box (6), and another group of turning handles (5) passes through the other side of the fixing frame (1) and extends outward. A first spring (7) is connected in series to the rod wall of the turning handle (5) located inside the fixing box (6), and a limiting component is also provided on the turning handle (5) located inside the fixing box (6). A moving component is provided on the side wall of the fixing frame (1), and a connecting block (15) is provided on the moving component. A plurality of knocking columns are provided on the side wall of the connecting block (15).

2. A plastic product processing injection mold according to claim 1, characterized in that: The position limiting assembly comprises a ratchet (8) arranged on a rod wall of a turning handle (5) located inside a fixing box (6), a torsion spring shaft (601) arranged on an inner side wall of the fixing box (6), and a ratchet pawl (9) sleeved on the outside of the torsion spring shaft (601) and meshing with the ratchet (8).

3. A plastic product processing injection mold according to claim 2, characterized in that: A pull rope (10) is provided on the upper surface of the ratchet (9), and one end of the pull rope (10) away from the ratchet (9) passes through the top of the fixing box (6) and extends outward, and a buckle (1001) is provided on the extended end of the pull rope (10) outside the fixing box (6).

4. The plastic product processing injection mold according to claim 1, characterized in that: The moving assembly comprises a support frame (11) arranged on a side wall of a fixed frame (1), a motor (12) arranged on the side wall of the support frame (11), a screw rod (1201) arranged at an output end of the motor (12), and a moving seat (13) slidably arranged inside the support frame (11), wherein the moving seat (13) is threadedly connected to the screw rod (1201).

5. The plastic product processing injection mold according to claim 4, characterized in that: The moving assembly further comprises a rotating column (14) rotatably arranged on the top of the moving seat (13), a gear ring (1401) arranged on the outer wall of the rotating column (14), and a tooth groove (1101) arranged on the inner wall of the support frame (11) and meshing with the gear ring (1401), and the connecting block (15) is arranged on the top of the rotating column (14).

6. The plastic product processing injection mold according to claim 1, characterized in that: The knocking column comprises a fixed cylinder (16) arranged on the side wall of the connecting block (15), a sliding rod (17) slidably arranged inside the fixed cylinder (16), a rubber ball (1701) arranged at one end of the sliding rod (17) away from the fixed cylinder (16), and a second spring (1601) arranged between the sliding rod (17) and the inner wall of the fixed cylinder (16).

7. The plastic product processing injection mold according to claim 4, characterized in that: The movable components are provided in two groups, and the two groups of movable components are respectively arranged on both sides of the fixed frame (1), wherein the end faces of the two groups of screw rods (1201) are provided with rotating rods (18) passing through the support frame (11), and the two groups of rotating rods (18) are connected to each other by a pulley (1801).

8. The plastic product processing injection mold according to claim 1, characterized in that: A fan (19) is provided on the side wall of the fixing frame (1), an air cavity connected to the output end of the fan (19) is provided on the bottom of the fixing frame (1), a plurality of exhaust holes (102) are provided on the inner bottom wall of the fixing frame (1), and a baffle (101) is provided at the bottom edge of the fixing frame (1).

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