PIN interchanging insert inserting mold

Abstract

The invention 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 invention, the PINs can be inserted in place, and the occurrence of conditions such as insertion failure of the PINs and the like can be avoided, so that the injection molding quality is improved.

Description

Technical Field

[0001] The invention relates to an interchangeable insert mould, in particular to a PIN needle interchangeable insert assembly mould. Background Art

[0002] In the prior art, influenced by factors such as product shape, many molds have adopted the application method of interchangeable inserts. Taking products with PIN pins as an example, the upper and lower ends of the PIN pins 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 applications. Before the upper and lower molds of the mold are closed, the PIN pins need to be installed in place first. Among them, because the length of the PIN pin inserted into the fixed part of the lower mold is relatively short, when the mold is closed, the longer upper part of the PIN pin is not easy to insert into the front mold, which can easily cause the PIN pin to be damaged, which not only affects the molding quality of the product, but also has a high scrap rate. Summary of the invention

[0003] The technical problem to be solved by the present invention is to provide a PIN pin interchangeable insert insertion mold which helps to insert the PIN pin into place, avoids the PIN pin from being damaged, and thus improves the injection molding quality, in view of the shortcomings of the prior art.

[0004] In order to solve the above technical problems, the present invention adopts the following technical solutions.

[0005] A PIN needle interchangeable insert insertion mold, which includes a mold core, a receiving hole penetrating through the upper and lower ends of the mold core, a PIN needle support provided in the receiving hole, a PIN needle fixture for inserting the PIN needle and a PIN needle push plate assembly that can slide up and down are provided in the PIN needle support, the upper end of the PIN needle push plate assembly is used to abut the lower end of the PIN needle, a first driving plate that can move up and down is provided below the mold core, a push plate support rod is fixed to the first driving plate, and the upper end of the push plate support rod is connected to the PIN The lower end of the pin push plate assembly is abutted and matched. When the PIN pin is inserted into the PIN pin fixture, the first driving plate drives the push plate support rod to descend to remove the thrust on the PIN pin push plate assembly. The PIN pin pushes the PIN pin push plate assembly downward. When the preset upper mold is closed relative to the mold core, the first driving plate drives the push plate support rod to rise and applies thrust to the PIN pin push plate assembly. The PIN pin push plate assembly lifts the PIN pin until the upper end of the PIN pin is inserted into the pin hole of the upper mold.

[0006] Preferably, a lower mold is included, the mold core is arranged at the upper end of the lower mold, and the first driving plate is arranged below the lower mold.

[0007] Preferably, the PIN needle jig is plate-shaped, and the PIN needle push plate assembly includes a first push plate and a second push plate that are relatively arranged, the first push plate and the second push plate are respectively slidably arranged on both sides of the PIN needle jig, and the upper ends of the first push plate and the second push plate are respectively formed with a first I-shaped portion and a second I-shaped portion, and the limit blocks formed on both sides of the PIN needle jig are respectively arranged in the lateral snap-in slots of the first I-shaped portion and the second I-shaped portion, and the opening width of the lateral snap-in slot is greater than the upper and lower widths of the limit blocks.

[0008] Preferably, a step-shaped splicing groove is formed on the side of the first push plate, and a step-shaped splicing portion is formed on the side of the second push plate, and the splicing portion is spliced ​​with the splicing groove.

[0009] Preferably, the upper end of the PIN needle jig is formed with a jig body protruding outward, and the front and rear sides of the jig body are respectively provided with a plurality of PIN needle slots, and the PIN needle slots 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, a positioning component for positioning the PIN needle support is provided in the mold core.

[0011] Preferably, the positioning assembly includes positioning sliders respectively arranged on the left and right sides of the PIN needle support, a positioning terminal is formed on one end of the positioning slider facing the PIN needle support, and positioning grooves are respectively formed on the left and right sides of the PIN needle support, the positioning terminal corresponds to the positioning groove one by one, and end plates are respectively fixed on the left and right sides of the mold core, a spring is sandwiched between the end plate and the positioning slider, and the positioning terminal is driven to be clamped in the positioning groove by the elastic force exerted by the spring.

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

[0013] Preferably, the lower ends of the two positioning sliders are respectively formed with oppositely arranged docking ends, and a V-shaped opening facing downward is formed between the two docking ends. A second driving plate that can move up and down is provided below the first driving plate, and a lifting push rod is fixed on the second driving plate. A wedge-shaped portion is formed on the upper end of the lifting push rod, and the wedge-shaped portion is aligned with the V-shaped opening. When the second driving plate drives the lifting push rod to move in a lifting manner, the lifting push rod first enters the V-shaped opening and drives the two docking ends away from each other, and at the same time, the two positioning ends are respectively separated from the two positioning grooves, and the lifting push rod lifts the bottom of the PIN pin support to make the PIN pin support extend upward from the accommodating hole.

[0014] Preferably, two jig positioning rods are provided on the PIN needle support, and jig slots are formed on the left and right side edges of the PIN needle jig, and the two jig positioning rods pass through the two jig slots respectively.

[0015] In the PIN pin interchangeable insert insertion mold disclosed by the present invention, the mold core is installed on a 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 thrust on the PIN pin push plate assembly. Then, a plurality of PIN pins are inserted into the PIN pin fixture by using a preset feeding mechanism for clamping PIN pins. While the PIN pins are inserted into the PIN pin fixture, the PIN pins push the PIN pin push plate assembly downward. Then, the preset upper mold is closed relative to the mold core. After closing, the upper end of the PIN pin is not in contact with the upper mold for the time being, so the PIN pin bending caused by the shorter insertion of the lower end of the PIN pin and the misalignment with the hole position of the upper mold is avoided. Then, the first driving plate drives the push plate support rod to rise and applies thrust to the PIN pin push plate assembly at the same time. The PIN pin push plate assembly lifts the PIN pin upward until the upper end of the PIN pin is inserted into the pin hole of the upper mold. After the product is injection molded, the upper and lower ends of the PIN pin pass through the upper and lower sides of the product. Compared with the prior art, the present invention helps to properly insert the PIN pin and avoid the occurrence of situations such as the PIN pin being damaged, thereby improving the injection molding quality. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 A three-dimensional diagram of the PIN needle interchangeable insert assembly mold of the present invention;

[0017] Figure 2 It is a partial exploded view of the PIN needle interchangeable insert insertion mold of the present invention;

[0018] Figure 3 The internal structure of the PIN needle interchangeable insert insertion mold of the present invention Figure 1 ;

[0019] Figure 4 The internal structure of the PIN needle interchangeable insert insertion mold of the present invention Figure 2 ;

[0020] Figure 5 for Figure 4 Exploded diagram of

[0021] Figure 6 The exploded view of the PIN pin support, PIN pin fixture and PIN pin push plate assembly;

[0022] Figure 7 It is a cross-sectional view of the PIN needle interchangeable insert insertion mold of the present invention;

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

[0024] The present invention is described in more detail below with reference to the accompanying drawings and embodiments.

[0025] The invention discloses a PIN needle interchangeable insert inserting mold, combined with Figures 1 to 8 As shown, it includes a mold core 1, the mold core 1 is provided with a receiving hole 2 running through the upper and lower ends thereof, the receiving hole 2 is provided with a PIN needle support 3, the PIN needle support 3 is provided with a PIN needle fixture 4 for inserting a PIN needle 100 and a PIN needle push plate assembly 5 that can slide up and down, the upper end of the PIN needle push plate assembly 5 is used to abut the lower end of the PIN needle 100, and a first driving plate 6 that can move up and down is provided below the mold core 1, 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 ends are abutted and matched. 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. 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 apply thrust to the PIN pin push plate assembly 5. 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.

[0026] In the above structure, the mold core 1 is installed on a preset lower mold. Before the upper and lower molds are closed, the first driving plate 6 drives the push plate support rod 60 to descend to remove the thrust on the PIN needle push plate assembly 5. Then, a plurality of PIN needles 100 are inserted into the PIN needle fixture 4 by using a preset feeding mechanism for clamping PIN needles 100. While the PIN needles 100 are inserted into the PIN needle fixture 4, the PIN needles 100 push the PIN needle push plate assembly 5 downward. Then, the preset upper mold is closed relative to the mold core 1. After closing, the PIN needles 100 are inserted into the PIN needle fixture 4. The upper end of PIN 100 is not in contact with the upper mold yet, so the PIN pin 100 is prevented from bending due to the short insertion of the lower end and misalignment with the upper mold hole. Then the first driving plate 6 drives the push plate support rod 60 to rise, and at the same time applies a thrust to the PIN pin push plate assembly 5, and the PIN pin push plate assembly 5 lifts the PIN pin 100 upward until the upper end of the PIN pin 100 is inserted into the pinhole of the upper mold. After the product 101 is injection molded, the upper and lower ends of the PIN pin 100 pass through the upper and lower sides of the product 101. Compared with the prior art, the present invention helps the PIN pin to be inserted in place and can avoid the occurrence of PIN pin damage, thereby improving the injection molding quality.

[0027] In order to achieve the clamping of the upper and lower molds, the present embodiment includes 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] Combination Figures 4 to 6 As shown, in this embodiment, 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 relatively arranged. The first push plate 50 and the second push plate 51 are respectively slidably arranged on both sides of the PIN needle fixture 4, and the upper ends of the first push plate 50 and the second push plate 51 are respectively formed with a first I-shaped portion 52 and a second I-shaped portion 53, and 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, and the opening width of the side bayonet 54 is greater than the upper and lower widths of the limit blocks 40.

[0029] In the above structure, the first push plate 50 and the second push plate 51 are respectively arranged on the front and rear sides of the PIN needle fixture 4, and at the same time, the first push plate 50 and the second push plate 51 are slidably matched with the PIN needle fixture 4, so 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 move up and down synchronously, in this embodiment, 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. Among them, the opposite sides of the first push plate 50 and the second push plate 51 are spliced ​​in the form of a step portion and a 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 upper and lower lengths of the first push plate 50 are greater than the length of the second push plate 51. When the push plate support rod 60 lifts the PIN needle push plate assembly 5, it only needs to apply a thrust to the lower end of the first push plate 50.

[0031] Combination Figures 5 to 8As shown, in this embodiment, the upper end of the PIN needle fixture 4 is formed with a fixture body 41 protruding outward, and a plurality of PIN needle slots 410 are respectively provided on the front and rear sides of the fixture body 41, and the PIN needle slots 410 on the front and rear sides are respectively aligned with the upper ends of the first I-shaped portion 52 and the upper ends of the second I-shaped portion 53. Among them, the main function of the fixture body 41 is to allow the PIN needle 100 to pass through, and the PIN needle slot 410 is a through groove. On this basis, because the front and rear sides of the fixture body 41 are protruding outward, the protruding part of the fixture body 41 can better align and match with the first I-shaped portion 52 and the second I-shaped portion 53, and at the same time provide a sliding space for the first I-shaped portion 52 and the second I-shaped portion 53 to lift the PIN needle 100.

[0032] On this basis, because the opening width of the lateral bayonet 54 is greater than the upper and lower widths of the limit block 40, the first I-shaped portion 52 and the second I-shaped portion 53 can slide up and down a certain distance relative to the PIN needle fixture 4 until the limit block 40 abuts against the edge of the lateral bayonet 54, thereby limiting the movement stroke of the PIN needle push plate assembly 5.

[0033] As a preferred embodiment, a positioning component 8 for positioning the PIN needle support 3 is provided in the mold core 1 .

[0034] Combination Figures 3 to 6 As shown, the positioning assembly 8 includes positioning sliders 80 respectively arranged on the left and right sides of the PIN needle support 3, and a positioning terminal 81 is formed at 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 terminal 81 corresponds to the positioning groove 30 one by one, and 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 terminal 81 to be clamped in the positioning groove 30.

[0035] Furthermore, a rounded corner 810 is formed at the upper corner of the positioning end 81 .

[0036] In the above structure, when the PIN needle holder 3 is inserted into the accommodating hole 2, the left and right corners of the PIN needle holder 3 abut against the rounded corners 810 of the positioning ends 81 on both sides, and at the same time drive the left and right positioning sliders 80 to separate relatively, and the PIN needle holder 3 enters between the two positioning sliders 80. When the positioning end 81 is aligned with the positioning groove 30, the spring 83 applies elastic force to drive the positioning end 81 to be clamped in the positioning groove 30, thereby positioning the PIN needle holder 3.

[0037] On this basis, this embodiment also has a mechanism for ejecting the PIN needle support 3, combined with Figures 2 to 6 As shown, the lower ends of the two positioning sliders 80 are respectively formed with oppositely arranged docking ends 84, and a V-shaped opening 85 opening downward is formed between the two docking ends 84. A second driving plate 9 that can be lifted and lowered is provided below the first driving plate 6. A lifting push rod 90 is fixed on the second driving plate 9. A wedge-shaped portion 91 is formed on the upper end of the lifting push rod 90, 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 lift, the lifting push rod 90 first enters the V-shaped opening 85 and drives the two docking ends 84 away from each other. 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.

[0038] Based on the above structure, after the injection molding of the workpiece 101 and the PIN needle 100 is completed, the upper mold is opened, and the product ejector rod pre-passed through the mold core 1 is used to lift the workpiece 101, so that the workpiece 101 and the PIN needle 100 are first separated from the mold core 1, and then the second driving plate 9 drives the lifting push rod 90 to lift, and the lifting push rod 90 enters the V-shaped mouth 85, and then drives the two docking ends 84 away from each other, and correspondingly, the two positioning ends 81 are separated from the two positioning grooves 30 respectively, and the limiting effect on the PIN needle support 3 is removed, and the lifting push rod 90 is used to lift the bottom of the PIN needle support 3. At this time, the PIN needle support 3 and the workpiece 101 are ejected synchronously. Based on the above asynchronous ejection action, it is possible to avoid adhesion between the product and the mold core 1 and the PIN needle support 3 when the mold is opened, thereby further improving the injection molding quality of the product.

[0039] In practical applications, see Figure 5 This embodiment includes two mutually parallel push plate support rods 60, and the two push plate support rods 60 are symmetrically arranged on both sides of the lifting push rod 90. The first push plate 50 can be lifted steadily 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 fixture 4, in this embodiment, two fixture positioning rods 31 are passed through the PIN needle support 3, and fixture slots 42 are respectively formed on the left and right side edges of the PIN needle fixture 4, and the two fixture positioning rods 31 pass through the two fixture slots 42 respectively.

[0041] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions or improvements made within the technical scope of the present invention should be included in the scope of protection of the present invention.

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 be lifted and lowered 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 (60) abuts against 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 apply 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 needle 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) comprises a first push plate (50) and a second push plate (51) which are arranged opposite to each other. The first push plate (50) and the second push plate (51) are respectively slidably arranged on two sides of the PIN needle fixture (4). The upper ends of the first push plate (50) and the upper ends 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) comprises positioning slide blocks (80) respectively arranged on the left and right sides of the PIN needle support (3); a positioning end head (81) is formed at one end of the positioning slide block (80) facing the PIN needle support (3); positioning grooves (30) are respectively formed on the left and right sides of the PIN needle support (3); the positioning end heads (81) correspond to the positioning grooves (30) one by one; end plates (82) are respectively fixed on the left and right sides of the mold core (1); a spring (83) is sandwiched between the end plates (82) and the positioning slide block (80); the positioning end heads (81) are driven to be clamped in the positioning grooves (30) by the elastic force applied by the spring (83).

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 needle interchangeable insert assembly mold according to claim 7, characterized in that: The lower ends of the two positioning slide blocks (80) are respectively formed with oppositely arranged butt joint ends (84), and a V-shaped opening (85) with an opening facing downward is formed between the two butt joint ends (84). A second driving plate (9) capable of lifting and lowering is provided below the first driving plate (6), and a lifting push rod (90) is fixed on the second driving plate (9). A wedge-shaped portion (91) is formed at the upper end of the lifting push rod (90), 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 lift, the lifting push rod (90) first enters the V-shaped opening (85) and drives the two butt joint ends (84) to move 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 needle 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 respectively 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.

Images