PIN interchanging insert inserting mold

Abstract

The utility model discloses a pin interchanging insert inserting mold which comprises a mold core, a containing hole penetrating through the upper end and the lower end of the mold core is formed in the mold core, a pin support is arranged in the containing hole, a pin jig and a pin push plate assembly are arranged in the pin support, the upper end of the pin push plate assembly is used for abutting against the lower end of a pin, and the lower end of the pin push plate assembly is used for abutting against the lower end of the pin. A first driving plate capable of moving up and down is arranged below the mold core, a pushing plate supporting rod is fixed to the first driving plate, when PINs are inserted into the PIN jig, the first driving plate drives the pushing plate supporting rod to descend so as to remove pushing force on the PIN pushing plate assembly, and the PINs downwards push the PIN pushing plate assembly. The first driving plate drives the push plate supporting rod to ascend and exert pushing force on the PIN push plate assembly, and the PIN push plate assembly jacks the PINs till the upper ends of the PINs are inserted into the pin holes of the upper die. According to the utility model, the PINs can be inserted in place, and the situations that the PINs are damaged due to insertion and the like can be avoided, so that the injection molding quality is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to interchangeable insert mould, especially a PIN needle interchangeable insert moulding die. BACKGROUND

[0002] In prior art, influenced by product shape and other factors, many moulds adopt interchangeable insert application mode, taking the product with PIN needle as an example, the upper and lower ends of PIN needle generally need to pass through the upper and lower sides of the product and be exposed, so as to facilitate plugging and welding in actual application, before the upper and lower moulds of the mould are closed, PIN needle needs to be installed in place, wherein, because the length of PIN needle inserted into the lower mould fixed part is less, when the mould is closed, the upper end of PIN needle is not easy to be inserted into the front mould, which easily causes PIN needle to be inserted and broken, not only affects the forming quality of the product, but also has high scrap rate. SUMMARY

[0003] The utility model solves the technical problem in prior art, provides a PIN needle interchangeable insert moulding die which helps PIN needle to be inserted and placed in place, avoids PIN needle from being inserted and broken, and improves injection quality.

[0004] To solve the above technical problems, the utility model adopts the following technical scheme.

[0005] A PIN needle interchangeable insert moulding die, comprising a mould core, wherein the mould core is provided with a containing hole penetrating through the upper and lower ends thereof, a PIN needle support is arranged in the containing hole, a PIN needle jig for inserting PIN needle and a PIN needle push plate assembly capable of sliding up and down are arranged in the PIN needle support, the upper end of the PIN needle push plate assembly is used for abutting against the lower end of the PIN needle, a first driving plate capable of lifting is arranged below the mould core, a push plate support rod is fixed on the first driving plate, the upper end of the push plate support rod is in abutting cooperation with the lower end of the PIN needle push plate assembly, when the PIN needle is inserted into the PIN needle jig, the first driving plate drives the push plate support rod to descend to remove the thrust on the PIN needle push plate assembly, the PIN needle pushes the PIN needle push plate assembly downward, when the upper mould is closed relative to the mould core, the first driving plate drives the push plate support rod to ascend and applies thrust to the PIN needle push plate assembly, the PIN needle push plate assembly jacks up the PIN needle, until the upper end of the PIN needle is inserted into the pin hole of the upper mould.

[0006] Preferably, the moulding die comprises a lower mould, the mould core is arranged at the upper end of the lower mould, and the first driving plate is arranged below the lower mould.

[0007] Preferably, the PIN pin jig is plate-shaped, the PIN pin push plate assembly comprises oppositely arranged first and second push plates, the first and second push plates are respectively slidably arranged on the two sides of the PIN pin jig, the upper end of the first push plate and the upper end of the second push plate are respectively formed with first and second I-shaped portions, the limiting blocks formed on the two sides of the PIN pin jig are respectively arranged in the lateral sockets of the first and second I-shaped portions, and the opening width of the lateral sockets is greater than the up-down width of the limiting blocks.

[0008] Preferably, the side of the first push plate is provided with a stepped splicing groove, the side of the second push plate is formed with a stepped splicing portion, and the splicing portion is oppositely spliced with the splicing groove.

[0009] Preferably, the upper end of the PIN pin jig is formed with a jig main body protruding outward, a plurality of PIN pin insertion grooves are respectively arranged on the front and rear sides of the jig main body, and the PIN pin insertion grooves on the front and rear sides are respectively aligned with the upper end of the first I-shaped portion and the upper end of the second I-shaped portion.

[0010] Preferably, the mold core is provided with a positioning assembly for positioning the PIN pin support.

[0011] Preferably, the positioning assembly comprises positioning sliders respectively arranged on the left and right sides of the PIN pin support, one end of the positioning slider towards the PIN pin support is formed with a positioning end head, the left and right sides of the PIN pin support are respectively formed with positioning grooves, the positioning end head and the positioning groove are one-to-one corresponding, the left and right sides of the mold core are respectively fixed with end plates, and the spring is clamped between the end plate and the positioning slider, and the positioning end head is clamped in the positioning groove by the elastic force of the spring.

[0012] Preferably, the upper end corner of the positioning end head is formed with a rounded corner.

[0013] Preferably, the lower end of the two positioning sliders is respectively formed with oppositely arranged butt end heads, a V-shaped opening downward is formed between the two butt end heads, a second driving plate is arranged below the first driving plate and can move up and down, a jacking push rod is fixed on the second driving plate, a wedge-shaped portion is formed at the upper end of the jacking push rod, the wedge-shaped portion is arranged in alignment with the V-shaped opening, when the second driving plate drives the jacking push rod to move up, the jacking push rod first enters the V-shaped opening and drives the two butt end heads to move away from each other, at the same time, the two positioning end heads are separated from the two positioning grooves, the jacking push rod jacks up the bottom of the PIN pin support, so that the PIN pin support is stretched out upward from the accommodating hole.

[0014] Preferably, two jig positioning rods are arranged on the PIN pin support, and the left and right side edges of the PIN pin jig are respectively provided with a jig clamping groove.

[0015] In the PIN pin exchange insert part insert mold, the mold core is installed on the preset lower mold, before the upper and lower molds are closed, the first driving plate drives the push plate support rod to descend to remove the pushing force on the PIN pin push plate assembly, then the preset feeding mechanism for clamping PIN pins is used to insert multiple PIN pins into the PIN pin jig, while the PIN pins are inserted into the PIN pin jig, the PIN pins push the PIN pin push plate assembly downward, then the preset upper mold is closed relative to the mold core, after the mold is closed, the upper end of the PIN pin is not in contact with the upper mold, so that the PIN pin bending and other conditions caused by the shorter insertion of the lower end of the PIN pin and the misalignment with the upper mold hole are avoided, then the first driving plate drives the push plate support rod to rise, and at the same time, the PIN pin push plate assembly is pushed, the PIN pin push plate assembly pushes the PIN pin upward, until the upper end of the PIN pin is inserted into the pin hole of the upper mold, when the product is injection molded, the upper and lower ends of the PIN pin are inserted into the upper and lower sides of the product. Compared with the prior art, the utility model is helpful for the insertion of the PIN pin, and can avoid the insertion of the PIN pin, so as to improve the injection quality. BRIEF DESCRIPTION OF DRAWINGS

[0016] Figure 1 It is a perspective view of the PIN pin exchange insert part insert mold of the utility model;

[0017] Figure 2 It is a partial exploded view of the PIN pin exchange insert part insert mold of the utility model;

[0018] Figure 3 It is the internal structure of the PIN pin exchange insert part insert mold of the utility model Figure 1 ;

[0019] Figure 4 It is the internal structure of the PIN pin exchange insert part insert mold of the utility model Figure 2 ;

[0020] Figure 5 It is an exploded view of Figure 4 ;

[0021] Figure 6 It is an exploded view of the PIN pin support, the PIN pin jig and the PIN pin push plate assembly;

[0022] Figure 7 It is a sectional view of the PIN pin exchange insert part insert mold of the utility model;

[0023] Figure 8 For Figure 7 Enlarged view of part A. DETAILED DESCRIPTION

[0024] The utility model will be described in more detail below in combination with the drawings and examples.

[0025] The utility model discloses a PIN needle interchanging insert mould piece, combines Figures 1 to 8 As shown in the figure, it comprises a mould core 1, the mould core 1 is provided with a containing hole 2 penetrating through the upper and lower ends thereof, a PIN needle support 3 is arranged in the containing hole 2, a PIN needle fixture 4 for inserting PIN needle 100 and a PIN needle push plate assembly 5 capable of sliding up and down are arranged in the PIN needle support 3, the upper end of the PIN needle push plate assembly 5 is used for abutting against the lower end of the PIN needle 100, a first driving plate 6 capable of lifting motion is arranged below the mould core 1, a push plate support rod 60 is fixed on the first driving plate 6, the upper end of the push plate support rod 60 is in abutting cooperation with the lower end of the PIN needle push plate assembly 5, when the PIN needle 100 is inserted into the PIN needle fixture 4, the first driving plate 6 drives the push plate support rod 60 to descend to remove the thrust force on the PIN needle push plate assembly 5, the PIN needle 100 pushes the PIN needle push plate assembly 5 downward, after the upper mould is closed relative to the mould core 1, the first driving plate 6 drives the push plate support rod 60 to ascend and exerts thrust force on the PIN needle push plate assembly 5, the PIN needle push plate assembly 5 jacks up the PIN needle 100, until the upper end of the PIN needle 100 is inserted into the needle hole of the upper mould.

[0026] In the structure, the mold core 1 is installed on the preset lower mold, before the upper and lower molds are closed, the first driving plate 6 drives the push plate supporting rod 60 to descend to remove the pushing force on the PIN needle push plate assembly 5, then the PIN needle 100 is inserted into the PIN needle jig 4 by using the preset feeding mechanism clamping the PIN needle 100, while the PIN needle 100 is inserted into the PIN needle jig 4, the PIN needle 100 pushes the PIN needle push plate assembly 5 downward, then the preset upper mold is closed relative to the mold core 1, after the mold is closed, the upper end of the PIN needle 100 does not contact the upper mold, so that the PIN needle bending and other conditions caused by the shorter insertion of the lower end of the PIN needle 100 and the misalignment with the upper mold hole are avoided, then the first driving plate 6 drives the push plate supporting rod 60 to ascend, and at the same time, the PIN needle push plate assembly 5 is subjected to the pushing force, the PIN needle push plate assembly 5 lifts the PIN needle 100 upward, until the upper end of the PIN needle 100 is inserted into the needle hole of the upper mold, when the product 101 is injection molded, the upper and lower ends of the PIN needle 100 are inserted into the upper and lower sides of the product 101. Compared with the prior art, the PIN needle is inserted into the position, and the PIN needle insertion failure and other conditions are avoided, so that the injection molding quality is improved.

[0027] In order to realize the closing of the upper and lower molds, the embodiment comprises a lower mold 7, the mold core 1 is arranged at the upper end of the lower mold 7, and the first driving plate 6 is arranged below the lower mold 7.

[0028] Combined Figures 4 to 6 As shown in the embodiment, the PIN needle jig 4 is in the form of a plate, the PIN needle push plate assembly 5 comprises a first push plate 50 and a second push plate 51 arranged oppositely, the first push plate 50 and the second push plate 51 are respectively arranged on the two sides of the PIN needle jig 4 in a sliding manner, the upper end of the first push plate 50 and the upper end of the second push plate 51 are respectively formed with a first I-shaped portion 52 and a second I-shaped portion 53, the limiting blocks 40 formed on the two sides of the PIN needle jig 4 are respectively arranged in the lateral clamping openings 54 of the first I-shaped portion 52 and the second I-shaped portion 53, and the opening width of the lateral clamping opening 54 is greater than the up-down width of the limiting block 40.

[0029] In the structure, the first push plate 50 and the second push plate 51 are arranged on the front and rear sides of the PIN needle jig 4 respectively, and the first push plate 50 and the second push plate 51 are both in sliding cooperation with the PIN needle jig 4, so that the first push plate 50 and the second push plate 51 can synchronously lift the front and rear rows of PIN needles 100.

[0030] In order to make the first push plate 50 and the second push plate 51 synchronous lifting movement, in the embodiment, the side of the first push plate 50 is provided with a stepped splicing groove 55, the side of the second push plate 51 is formed with a stepped splicing part 56, and the splicing part 56 is opposite to the splicing groove 55. Among them, the opposite side of the first push plate 50 and the second push plate 51 is spliced in the way of step and step groove. This structure can ensure that the first push plate 50 and the second push plate 51 are well combined. On this basis, the length of the first push plate 50 is greater than the length of the second push plate 51. When the push plate support rod 60 lifts the PIN pin push plate assembly 5, only the push force needs to be applied to the lower end of the first push plate 50.

[0031] In combination Figures 5 to 8 As shown in the embodiment, the upper end of the PIN pin jig 4 is formed with a jig body 41 protruding outward, and a plurality of PIN pin insertion grooves 410 are respectively arranged on the front and back sides of the jig body 41. The PIN pin insertion grooves 410 on the front and back sides are respectively aligned with the upper end of the first I-shaped part 52 and the upper end of the second I-shaped part 53. Among them, the main function of the jig body 41 is to pass through the PIN pin 100, and the PIN pin insertion groove 410 is a through groove. On this basis, because the front and back sides of the jig body 41 protrude outward, the protruding part of the jig body 41 can better align and match the first I-shaped part 52 and the second I-shaped part 53, and at the same time provide a sliding space for the first I-shaped part 52 and the second I-shaped part 53 to lift the PIN pin 100.

[0032] On this basis, because the opening width of the lateral card hole 54 is greater than the up-down width of the limiting block 40, the first I-shaped part 52 and the second I-shaped part 53 can slide a certain distance relative to the PIN pin jig 4, until the limiting block 40 abuts against the edge of the lateral card hole 54, thereby limiting the movement stroke of the PIN pin push plate assembly 5.

[0033] As a preferred way, the mold core 1 is provided with a positioning assembly 8 for positioning the PIN pin support 3.

[0034] In combination Figures 3 to 6As shown, the positioning assembly 8 comprises positioning sliders 80 arranged on the left and right sides of the PIN needle support 3, and the positioning sliders 80 are formed with positioning end heads 81 at one end thereof towards the PIN needle support 3. The PIN needle support 3 is formed with positioning grooves 30 on the left and right sides thereof respectively, and the positioning end heads 81 correspond to the positioning grooves 30 one by one. The mold core 1 is fixed with end plates 82 on the left and right sides thereof respectively, and springs 83 are arranged between the end plates 82 and the positioning sliders 80. The positioning end heads 81 are clamped in the positioning grooves 30 by the elastic force of the springs 83.

[0035] Further, the upper end corners of the positioning end heads 81 are formed with rounded portions 810.

[0036] In the above structure, when the PIN needle support 3 is inserted into the accommodating hole 2, the left and right corner portions of the PIN needle support 3 abut against the rounded portions 810 of the two positioning end heads 81, and the left and right positioning sliders 80 are relatively separated. The PIN needle support 3 enters between the two positioning sliders 80. After the positioning end heads 81 are aligned with the positioning grooves 30, the springs 83 exert an elastic force to drive the positioning end heads 81 to be clamped in the positioning grooves 30, thereby playing a positioning role on the PIN needle support 3.

[0037] On this basis, the embodiment further has a mechanism for ejecting the PIN needle support 3, which will be described in combination with Figures 2 to 6 As shown, the lower ends of the two positioning sliders 80 are respectively formed with oppositely arranged butt end heads 84, and a V-shaped opening 85 with an opening downward is formed between the two butt end heads 84. The lower side of the first driving plate 6 is provided with a second driving plate 9 capable of lifting movement. The second driving plate 9 is fixed with a jacking push rod 90, and the upper end of the jacking push rod 90 is formed with a wedge-shaped portion 91. The wedge-shaped portion 91 is arranged in alignment with the V-shaped opening 85. When the second driving plate 9 drives the jacking push rod 90 to move upward, the jacking push rod 90 first enters the V-shaped opening 85 and drives the two butt end heads 84 to move away from each other, and at the same time, the two positioning end heads 81 are separated from the two positioning grooves 30. The jacking push rod 90 jacks up the bottom of the PIN needle support 3, so that the PIN needle support 3 is stretched upward from the accommodating hole 2.

[0038] Based on the above structure, when the workpiece 101 and the PIN needle 100 are injection molded, the upper mold is opened, the product ejector rod pre-penetrated in the mold core 1 is used to lift the workpiece 101, so that the workpiece 101 and the PIN needle 100 are separated from the mold core 1 first, then the second driving plate 9 drives the lifting push rod 90 to move upward, the lifting push rod 90 enters the V-shaped port 85, then the two butt heads 84 are driven to move away from each other, and the two positioning heads 81 are separated from the two positioning grooves 30 respectively, the limiting effect of the PIN needle support 3 is removed, and the bottom of the PIN needle support 3 is lifted by the lifting push rod 90. At this time, the PIN needle support 3 and the workpiece 101 are synchronously ejected, based on the above asynchronous ejection action, the adhesion between the product and the mold core 1 and the PIN needle support 3 during mold opening can be avoided, and the injection quality of the product is further improved.

[0039] In practical application, please refer to Figure 5 The embodiment includes two parallel push plate support rods 60, which are symmetrically arranged on the two sides of the lifting push rod 90, and the first push plate 50 can be smoothly lifted by the two push plate support rods 60.

[0040] In order to fix the relative position of the PIN needle support 3 and the PIN needle jig 4, in the embodiment, two jig positioning rods 31 are arranged on the PIN needle support 3, and the left and right edges of the PIN needle jig 4 are respectively formed with jig clamping grooves 42, and the two jig positioning rods 31 respectively penetrate the two jig clamping grooves 42.

[0041] The above is only the preferred embodiment of the present application, and is not used to limit the present application, and any modification, equivalent replacement or improvement within the technical scope of the present application should be included in the scope of protection of the present application.

Claims

1. A PIN needle interchangeable insert insertion mold, characterized in that: The invention comprises a mold core (1), wherein the mold core (1) is provided with a receiving hole (2) penetrating the upper and lower ends thereof, wherein a PIN needle support (3) is provided in the receiving hole (2), wherein a PIN needle fixture (4) for inserting a PIN needle (100) and a PIN needle push plate assembly (5) which can slide up and down are provided in the PIN needle support (3), wherein the upper end of the PIN needle push plate assembly (5) is used to abut against the lower end of the PIN needle (100), and a first driving plate (6) which can move upward and downward is provided below the mold core (1), wherein a push plate support rod (60) is fixed on the first driving plate (6), and the upper end of the push plate support rod (60) is in contact with the PIN needle push plate assembly (5). The lower end of the push plate is in abutment with the PIN pin (100), and when the PIN pin (100) is inserted into the PIN pin fixture (4), the first driving plate (6) drives the push plate support rod (60) to descend to remove the thrust on the PIN pin push plate assembly (5), and the PIN pin (100) pushes the PIN pin push plate assembly (5) downward. When the preset upper mold is closed relative to the mold core (1), the first driving plate (6) drives the push plate support rod (60) to rise and applies thrust to the PIN pin push plate assembly (5), and the PIN pin push plate assembly (5) lifts the PIN pin (100) until the upper end of the PIN pin (100) is inserted into the pinhole of the upper mold.

2. The PIN needle interchangeable insert assembly mold according to claim 1, characterized in that: It comprises a lower mold (7), the mold core (1) is arranged at the upper end of the lower mold (7), and the first driving plate (6) is arranged below the lower mold (7).

3. The PIN pin interchangeable insert assembly mold according to claim 1, characterized in that: The PIN needle fixture (4) is plate-shaped, and the PIN needle push plate assembly (5) includes a first push plate (50) and a second push plate (51) that are arranged opposite to each other. The first push plate (50) and the second push plate (51) are respectively slidably arranged on both sides of the PIN needle fixture (4). The upper end of the first push plate (50) and the upper end of the second push plate (51) are respectively formed with a first I-shaped portion (52) and a second I-shaped portion (53). The limit blocks (40) formed on both sides of the PIN needle fixture (4) are respectively arranged in the side bayonet (54) of the first I-shaped portion (52) and the second I-shaped portion (53). The opening width of the side bayonet (54) is greater than the upper and lower widths of the limit blocks (40).

4. The PIN needle interchangeable insert assembly mold according to claim 3, characterized in that: A step-shaped splicing groove (55) is formed on the side of the first push plate (50), and a step-shaped splicing portion (56) is formed on the side of the second push plate (51), and the splicing portion (56) is spliced ​​with the splicing groove (55) in a relative manner.

5. The PIN needle interchangeable insert assembly mold according to claim 3, characterized in that: The upper end of the PIN needle jig (4) is formed with a jig body (41) protruding outward, and the front and rear sides of the jig body (41) are respectively provided with a plurality of PIN needle slots (410), and the PIN needle slots (410) on the front and rear sides are respectively aligned with the upper end of the first I-shaped portion (52) and the upper end of the second I-shaped portion (53).

6. The PIN needle interchangeable insert assembly mold according to claim 1, characterized in that: A positioning component (8) for positioning the PIN needle support (3) is provided in the mold core (1).

7. The PIN needle interchangeable insert assembly mold according to claim 6, characterized in that: The positioning assembly (8) includes positioning sliders (80) respectively arranged on the left and right sides of the PIN needle support (3), a positioning end (81) is formed on one end of the positioning slider (80) facing the PIN needle support (3), and positioning grooves (30) are respectively formed on the left and right sides of the PIN needle support (3), and the positioning end (81) corresponds to the positioning groove (30) one by one. End plates (82) are respectively fixed on the left and right sides of the mold core (1), and a spring (83) is sandwiched between the end plate (82) and the positioning slider (80), and the elastic force applied by the spring (83) drives the positioning end (81) to be clamped in the positioning groove (30).

8. The PIN needle interchangeable insert assembly mold according to claim 7, characterized in that: A rounded corner portion (810) is formed at the upper corner of the positioning end head (81).

9. The PIN pin interchangeable insert assembly mold according to claim 7, characterized in that: The lower ends of the two positioning sliders (80) are respectively formed with oppositely arranged docking ends (84), and a V-shaped opening (85) with an opening facing downward is formed between the two docking ends (84). A second driving plate (9) that can move up and down is provided below the first driving plate (6), and a lifting push rod (90) is fixed on the second driving plate (9). The upper end of the lifting push rod (90) is formed with a wedge-shaped portion (91), and the wedge-shaped portion (91) is aligned with the V-shaped opening (85). When the second driving plate (9) drives the lifting push rod (90) to move upward, the lifting push rod (90) first enters the V-shaped opening (85) and drives the two docking ends (84) away from each other, and at the same time, the two positioning ends (81) are respectively separated from the two positioning grooves (30), and the lifting push rod (90) lifts the bottom of the PIN needle support (3) so that the PIN needle support (3) extends upward from the accommodating hole (2).

10. The PIN pin interchangeable insert assembly mold according to claim 1, characterized in that: Two jig positioning rods (31) are provided on the PIN needle support (3), and jig slots (42) are formed on the left and right side edges of the PIN needle jig (4), and the two jig positioning rods (31) pass through the two jig slots (42) respectively.

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