Power line plug injection mold total structure

Abstract

The utility model relates to the technical field of injection mold total structures, in particular to a power line plug injection mold total structure. According to the technical scheme, the device comprises an injection molding machine, an upper mold mounted on the injection molding machine, a lower mold mounted on the injection molding machine and located below the upper mold, a demolding mechanism fixedly connected with the lower mold, and a wire stroking mechanism and a wire fixing mechanism mounted on the upper mold and the lower mold, a power line and a fastening mechanism are placed between the upper die and the lower die, and the fastening mechanism is installed on the upper die and the lower die. Through the demolding mechanism, an injection molding part can be conveniently taken out, through the wire stroking mechanism and the wire fixing mechanism, a power line can be kept in a straight line state, the power line is prevented from being bent, the power line to be machined is smoother, and through the fastening mechanism, a mold is prevented from being scratched, and defects of the mold are prevented.

Description

Technical Field

[0001] The utility model relates to the technical field of overall structure of injection molds, in particular to an overall structure of an injection mold for a power cord plug. Background Art

[0002] The process of injection molding the power cord plug involves wrapping the power cord and plug assembly with high-temperature molten plastic material to form an integrated shell. This process needs to be carried out on a dedicated injection molding machine, and the specific steps are as follows: First, the injection mold needs to be designed according to the shape and size of the power cord plug. The design of the mold needs to take into account the fluidity of the plastic, the cooling rate, the exhaust of the mold, and the final demolding of the product. The pre-treated plastic material is added to the barrel of the injection molding machine. Under the action of high temperature and pressure, the plastic melts and is injected into the mold cavity through the injection port. The plastic injected into the mold cavity cools and solidifies in the mold to form the plastic shell of the power cord plug. After the plastic cools, the mold is opened and the molded power cord plug is pushed out of the mold using an ejection mechanism.

[0003] The mold is divided into an upper mold and a lower mold. When demolding, the upper mold is located directly above the lower mold. Therefore, when demolding, the demolding space is small, and when the upper mold and the lower mold are combined, it should be ensured that there is no relative movement between the upper mold and the lower mold. Summary of the invention

[0004] The utility model aims to solve the problems existing in the background technology and proposes a general structure of an injection mold for a power cord plug which is convenient for demoulding and can avoid displacement between an upper mold and a mold.

[0005] The technical solution of the utility model is: a general structure of an injection mold for a power cord plug, including an injection molding machine, an upper mold installed on the injection molding machine, a lower mold installed on the injection molding machine and located below the upper mold, and also includes:

[0006] A demoulding mechanism, wherein the demoulding mechanism is fixedly connected to the lower mold, and the demoulding mechanism drives the lower mold and the upper mold to be displaced in the up-down direction;

[0007] A wire-straightening mechanism and a wire-fixing mechanism installed on the upper mold and the lower mold, a power wire is placed between the upper mold and the lower mold, the wire-straightening mechanism keeps the power wire flat, and the wire-fixing mechanism fixes the power wire;

[0008] The fastening mechanism is installed on the upper mold and the lower mold, and the fastening mechanism limits the upper mold and the lower mold when the upper mold and the lower mold are combined.

[0009] Optionally, the demoulding mechanism includes a slide fixedly mounted on the injection molding machine, a slide seat slidably mounted on the slide, and a cylinder fixedly mounted on the injection molding machine. Two limit bars are detachably mounted on the slide seat, and the two limit bars fixedly connect the lower mold and the slide seat. A sensor sheet is fixedly mounted on the slide seat, and the sensor sheet detects a safe distance between the slide seat and the cylinder.

[0010] Optionally, two sliding columns are slidably mounted on the lower mold, and special-shaped plates are fixedly mounted on the two sliding columns. Slide blocks are slidably mounted on both sides of the lower mold, and cam followers are fixedly mounted on the slide blocks. Two driving bars are fixedly mounted on the upper mold, and the sliding columns rest against the slide blocks.

[0011] Optionally, the wire-winding mechanism includes a first mounting block fixedly mounted on both sides of the upper mold, a bearing being rotatably mounted on the first mounting block, a support seat fixedly mounted on both sides of the lower mold, and a driving rod slidably mounted on the support seat, the driving rod being provided with an inclined surface that cooperates with the bearing, and a first tension spring being fixedly mounted between the driving rod and the support seat.

[0012] Optionally, the wire fixing mechanism includes a second mounting block fixedly mounted on both sides of the upper mold, a slide bar slidably mounted in the second mounting block, an upper fixed plate fixedly mounted on the slide bar, a second tension spring fixedly mounted between the second mounting block and the slide bar, a supporting plate fixedly mounted on the fixed plate, a card plate slidably mounted on the supporting plate, a third tension spring fixedly mounted on the card plate and the supporting plate, a lower fixed plate fixedly mounted on the driving rod, and a fixing groove provided on the lower fixed plate.

[0013] Optionally, the fastening mechanism includes a clamping block fixedly mounted on the slide bar, and the driving rod is provided with a limiting groove matching the clamping block.

[0014] Optionally, the upper mold is provided with an injection hole, and the injection hole passes through the upper mold.

[0015] Compared with the prior art, the utility model has the following beneficial technical effects:

[0016] Through the demoulding mechanism, the lower mold and the upper mold are displaced in the vertical direction, so as to facilitate the removal of the injection molded parts;

[0017] Furthermore, the power cord is flexibly fixed by the wire-winding mechanism and the wire fixing mechanism to prevent the power cord from being damaged, so that the power cord can be kept in a straight state and the power cord is prevented from bending, so that the power cord to be processed is smoother;

[0018] Furthermore, the upper mold and the lower mold are limited by the fastening mechanism so that the upper mold and the lower mold cannot move left and right, thereby preventing the mold from being scratched and defects from being caused to the mold. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 A schematic diagram of the structure of an embodiment of the utility model is given Figure 1 ;

[0020] Figure 2 A schematic diagram of the structure of an embodiment of the utility model is given Figure 2 ;

[0021] Figure 3 A schematic diagram of the structure of the utility model after mold closing is given;

[0022] Figure 4 A schematic diagram of the structure of an embodiment of the utility model is given Figure 3 ;

[0023] Figure 5 A schematic diagram of the structure of an embodiment of the utility model is given Figure 4 ;

[0024] Figure 6 Provide the utility model Figure 2 A partial enlarged view of the middle A;

[0025] Figure 7 Provide the utility model Figure 2 A partial enlarged view of point B in the middle;

[0026] Figure 8 Provide the utility model Figure 5 A partial enlarged view of point C in the middle;

[0027] Fig. 9 Provide the utility model Figure 1 A partial enlarged view of point D in the middle;

[0028] Fig.10 Provide the utility model Figure 1 A partial enlarged view of point E in the middle;

[0029] Fig.11 Provide the utility model Figure 4 A partial enlarged view of point F in the middle;

[0030] Fig.12 Provide the utility model Figure 4 A partial enlarged view of point G in the middle.

[0031] 1. Slide plate; 101. Slide seat; 102. Oil cylinder; 103. Sensor plate; 2. Limiting strip; 3. Lower mold; 4. Upper mold; 5. Driving strip; 501. Sliding block; 502. Cam follower; 503. Sliding column; 504. Special-shaped plate; 6. Fixed plate; 601. Load-bearing plate; 602. Third tension spring; 603. Card plate; 604. Lower fixed plate; 605. Fixed groove; 7. Second mounting block; 701. Sliding strip; 702. Card block; 703. Second tension spring; 704. Support seat; 705. Driving rod; 706. First tension spring; 707. Limiting groove; 8. First mounting block; 801. Bearing; 802. Inclined surface; 9. Power cord; 10. Injection hole. DETAILED DESCRIPTION

[0032] The technical solution of the utility model is further described below in conjunction with the accompanying drawings and specific embodiments.

[0033] Example

[0034] like Figure 1-2 and Figure 6 as well as Figure 8 As shown, the overall structure of the injection mold of a power cord plug proposed by the utility model includes an injection molding machine, an upper mold 4 installed on the injection molding machine, and a lower mold 3 installed on the injection molding machine and located below the upper mold 4. The upper mold 4 is provided with an injection hole 10, and the injection hole 10 passes through the upper mold 4. The injection liquid is injected into the space between the upper mold 4 and the lower mold 3 through the injection hole 10. Two slide posts 503 are slidably installed on the lower mold 3, and special-shaped plates 504 are fixedly installed on the two slide posts 503. Slide blocks 501 are slidably installed on both sides of the lower mold 3, and cam followers 502 are fixedly installed on the slide blocks 501. Two driving bars 5 are fixedly installed on the upper mold 4, and the slide posts 503 abut against the slide blocks 501. When the injection molding machine drives the upper mold 4 to descend, it drives the two driving bars 5 to move downward. The driving bar 5 will contact the cam follower 502 and drive the cam follower 502 to move outward, thereby driving the slider 501 to move outward. When the slider 501 moves to the outside, the slide column 503 will not be limited, so that the slide column 503 moves downward, thereby driving the special-shaped plate 504 to move downward, so that the special-shaped plate 504 is combined with the lower mold 3, and then injection molding can be carried out. After the injection molding is completed, the special-shaped plate 504 is moved upward to facilitate demoulding.

[0035] like Figure 2As shown, it also includes a demoulding mechanism, which is fixedly connected to the lower mold 3, and the demoulding mechanism drives the lower mold 3 and the upper mold 4 to be displaced in the up and down directions. The demoulding mechanism includes a slide plate 1 fixedly installed on the injection molding machine, a slide seat 101 slidably installed on the slide plate 1, and an oil cylinder 102 fixedly installed on the injection molding machine. Two limit bars 2 are detachably installed on the slide seat 101, and the two limit bars 2 fix the lower mold 3 and the slide seat 101, so that different molds can be installed on the slide seat 101. A sensor sheet 103 is fixedly installed on the slide seat 101, and the sensor sheet 103 detects the safe distance between the slide seat 101 and the oil cylinder 102. After the injection molding is completed, after the injection molding machine drives the upper mold 4 to move upward, the oil cylinder 102 drives the slide seat 101 to slide on the slide plate 1, thereby driving the lower mold 3 and the upper mold 4 to be displaced, so as to facilitate the removal of the injection molded parts.

[0036] like Figure 1-2 and Figure 3-4 as well as Figure 7 and 9 -12, a wire-smoothing mechanism and a wire-fixing mechanism are installed on the upper mold 4 and the lower mold 3. A power cord 9 is placed between the upper mold 4 and the lower mold 3. The wire-smoothing mechanism keeps the power cord flat, and the wire-fixing mechanism fixes the power cord 9. The wire-smoothing mechanism includes a first mounting block 8 fixedly mounted on both sides of the upper mold 4, on which a bearing 801 is rotatably mounted, a support seat 704 fixedly mounted on both sides of the lower mold 3, and a driving rod 705 slidably mounted on the support seat 704. The driving rod 705 is provided with an inclined surface 802 that matches the bearing 801, and a first tension spring 706 is fixedly mounted between the driving rod 705 and the support seat 704. When the upper mold 4 moves downward and combines with the lower mold 3, it will drive the first mounting block 8 to move downward, thereby driving the bearing 801 to move downward. After the bearing 801 contacts the inclined surface 802, it will push the driving rod 705 to move to the right. When the driving rod 705 moves to the right, the first tension spring 706 is stretched;

[0037] The wire fixing mechanism includes a second mounting block 7 fixedly mounted on both sides of the upper mold 4, a slide bar 701 slidably mounted in the second mounting block 7, an upper fixed plate 6 fixedly mounted on the slide bar 701, a second tension spring 703 fixedly mounted between the second mounting block 7 and the slide bar 701, a supporting plate 601 fixedly mounted on the fixing plate 6, a clamping plate 603 slidably mounted on the supporting plate 601, a third tension spring 602 fixedly mounted on the clamping plate 603 and the supporting plate 601, a lower fixed plate 604 fixedly mounted on the driving rod 705, and a fixing groove 605 provided on the lower fixed plate 604. When the upper mold 4 moves downward and combines with the lower mold 3, it will drive the card plate 603 to move downward, and then the card plate 603 will enter the fixed groove 605. After the card plate 603 enters the fixed groove 605, the power cord 9 will be clamped and fixed. Under the action of the third tension spring 602, the card plate 603 and the fixed groove 605 can flexibly fix the power cord 9 to prevent the power cord 9 from being damaged. When the driving rod 705 moves to the right, it will drive the lower fixed plate 604 to move to the right, thereby driving the power cord 9 to move, so that the power cord 9 can remain in a straight state to prevent the power cord 9 from bending.

[0038] like Figure 3 and Fig. 9 as well as Fig.12 As shown, the fastening mechanism is installed on the upper mold 4 and the lower mold 3. When the upper mold 4 and the lower mold 3 are combined, the fastening mechanism limits the upper mold 4 and the lower mold 3. The fastening mechanism includes a clamping block 702 fixedly installed on the slide bar 701, and a limiting groove 707 matching the clamping block 702 is provided on the driving rod 705. When the upper mold 4 moves downward to combine with the lower mold 3, it will drive the clamping block 702 to move downward, so that the clamping block 702 enters the limiting groove 707, so that the upper mold 4 and the lower mold 3 cannot move left and right, so as to prevent the mold from being scratched and prevent defects from being caused to the mold.

[0039] Working principle: When closing the mold, the injection molding machine drives the upper mold 4 to descend, thereby driving the two driving bars 5 to move downward. The driving bar 5 will contact the cam follower 502 and drive the cam follower 502 to move outward, thereby driving the slider 501 to move outward. When the slider 501 moves to the outside, the slide post 503 will not be limited, so that the slide post 503 moves downward, thereby driving the special-shaped plate 504 to move downward, so that the special-shaped plate 504 is combined with the lower mold 3, and then injection molding can be performed. After the injection molding is completed, the special-shaped plate 504 is moved upward to facilitate demoulding;

[0040] During demoulding, after the injection molding machine drives the upper mold 4 to move upward, the oil cylinder 102 drives the slide 101 to slide on the slide plate 1, thereby driving the lower mold 3 and the upper mold 4 to be dislocated, so as to facilitate the removal of the injection molded part;

[0041] When the mold is closed, the first mounting block 8 moves downward, driving the bearing 801 to move downward, and the bearing 801 will push the driving rod 705 to move to the right and stretch the first tension spring 706. When the first mounting block 8 moves upward, it is reset under the action of the first tension spring 706. When the upper mold 4 moves downward, it drives the card plate 603 to move downward, and then the card plate 603 enters the fixed groove 605 to clamp and fix the power cord 9. When the driving rod 705 moves to the right, it will drive the lower fixed plate 604 to move to the right, thereby driving the power cord 9 to move, so that the power cord 9 can remain in a straight state to prevent the power cord 9 from bending.

[0042] When the mold is closed, the clamping block 702 moves downward and enters the limiting groove 707, so that the upper mold 4 and the lower mold 3 cannot move left or right, thereby preventing the mold from being scratched and causing defects to the mold.

[0043] The above-mentioned specific embodiments are only several optional embodiments of the present invention. Based on the technical solution of the present invention and the relevant inspiration of the above-mentioned embodiments, those skilled in the art can make various alternative improvements and combinations to the above-mentioned specific embodiments.

Claims

1. A general structure of an injection mold for a power cord plug, comprising an injection molding machine, an upper mold (4) mounted on the injection molding machine, and a lower mold (3) mounted on the injection molding machine and located below the upper mold (4), characterized in that: Also includes: A demoulding mechanism, wherein the demoulding mechanism is fixedly connected to the lower mold (3), and the demoulding mechanism drives the lower mold (3) and the upper mold (4) to be displaced in the up-down direction; A wire-straightening mechanism and a wire-fixing mechanism installed on the upper mold (4) and the lower mold (3), a power wire (9) being placed between the upper mold (4) and the lower mold (3), the wire-straightening mechanism keeping the power wire flat, and the wire-fixing mechanism fixing the power wire (9); A fastening mechanism is installed on the upper mold (4) and the lower mold (3), and the fastening mechanism limits the upper mold (4) and the lower mold (3) when the upper mold (4) and the lower mold (3) are combined.

2. The overall structure of the injection mold for a power cord plug according to claim 1, characterized in that: The demoulding mechanism comprises a slide plate (1) fixedly mounted on the injection molding machine, a slide seat (101) slidably mounted on the slide plate (1), and an oil cylinder (102) fixedly mounted on the injection molding machine; two limit bars (2) are detachably mounted on the slide seat (101); the two limit bars (2) fixedly connect the lower mold (3) and the slide seat (101); a sensor sheet (103) is fixedly mounted on the slide seat (101); and the sensor sheet (103) detects a safe distance between the slide seat (101) and the oil cylinder (102).

3. The overall structure of the injection mold for a power cord plug according to claim 1, characterized in that: Two slide posts (503) are slidably mounted on the lower mold (3), and special-shaped plates (504) are fixedly mounted on the two slide posts (503). Slide blocks (501) are slidably mounted on both sides of the lower mold (3), and cam followers (502) are fixedly mounted on the slide blocks (501). Two driving bars (5) are fixedly mounted on the upper mold (4), and the slide posts (503) are against the slide blocks (501).

4. The overall structure of the injection mold for a power cord plug according to claim 1, characterized in that: The wire-winding mechanism comprises a first mounting block (8) fixedly mounted on both sides of the upper mold (4), a bearing (801) being rotatably mounted on the first mounting block (8), a support seat (704) fixedly mounted on both sides of the lower mold (3), and a driving rod (705) slidably mounted on the support seat (704), the driving rod (705) being provided with an inclined surface (802) cooperating with the bearing (801), and a first tension spring (706) being fixedly mounted between the driving rod (705) and the support seat (704).

5. The overall structure of the injection mold for a power cord plug according to claim 1, characterized in that: The wire fixing mechanism comprises a second mounting block (7) fixedly mounted on both sides of the upper mold (4), a slide bar (701) slidably mounted in the second mounting block (7), an upper fixed plate (6) fixedly mounted on the slide bar (701), a second tension spring (703) fixedly mounted between the second mounting block (7) and the slide bar (701), a bearing plate (601) fixedly mounted on the fixing plate (6), a clamping plate (603) slidably mounted on the bearing plate (601), a third tension spring (602) fixedly mounted on the clamping plate (603) and the bearing plate (601), a lower fixed plate (604) fixedly mounted on the driving rod (705), and a fixing groove (605) provided on the lower fixed plate (604).

6. The overall structure of the injection mold for a power cord plug according to claim 5, characterized in that: The fastening mechanism comprises a clamping block (702) fixedly mounted on the slide bar (701), and the driving rod (705) is provided with a limiting groove (707) matching the clamping block (702).

7. The overall structure of the injection mold for a power cord plug according to claim 1, characterized in that: The upper mold (4) is provided with an injection hole (10), and the injection hole (10) passes through the upper mold (4).

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