Injection mold of automobile connector with metal insert

Abstract

The utility model provides an injection mold of an automobile connector with a metal insert, and belongs to the technical field of injection molds. A forming groove is formed in the upper die plate, a vertically-through feeding hole is formed in the lower die plate, a feeding sliding rod inserted into the feeding hole is arranged between the two vertical plates, a supporting plate is fixed to the bottom of the feeding sliding rod, the feeding sliding rod is sleeved with a plurality of metal inserts in the length direction of the feeding sliding rod, and a lifting air cylinder is fixed to the lower end face of the lower bottom plate. A telescopic rod of the lifting air cylinder penetrates through the lower bottom plate to be connected to the supporting plate, a step allowing the upper end of the metal insert to abut against is arranged in the forming groove, and a plurality of protruding forming blocks are arranged at the top of the feeding sliding rod. A plurality of feeding air cylinders are fixed to the lower bottom plate, material pushing parts are arranged on the feeding sliding rods in a sliding fit mode, telescopic rods of the feeding air cylinders are connected with the material pushing parts, and the material pushing parts move upwards to drive the metal inserts to move upwards. The metal insert is automatically fed into the forming groove through the feeding air cylinder, and the automatic feeding function is achieved.

Description

Technical Field

[0001] The utility model belongs to the technical field of injection molds, and relates to an injection mold for an automotive connector with a metal insert. Background Technique

[0002] An automotive connector is a component that electronic engineering technicians often come into contact with. Its function is very simple. Between a blocked or isolated circuit in a circuit, the two are connected through the connector, so that the current can flow and the circuit can achieve the predetermined function. The forms and structures of automotive connectors are ever-changing. A metal insert is built into the connector, and the metal insert is fixed by plastic. During the manufacturing process, workers manually place the metal insert on the mold, and the metal insert needs to be repositioned every time of injection molding. The injection molding efficiency is low and automatic feeding cannot be achieved. Summary of the Utility Model

[0003] The purpose of the utility model is to address the above problems existing in the prior art, and propose an injection mold for an automotive connector with a metal insert, which can automatically feed the metal insert into the forming groove along the feeding slide bar through a feeding air cylinder, realizing the function of automatic feeding.

[0004] The purpose of the utility model can be achieved by the following technical solutions: An injection mold for an automotive connector with a metal insert, including an upper top plate, an upper template, a lower template, a vertical plate and a lower bottom plate. The upper top plate is fixedly connected to the upper template, and the lower template, the vertical plate and the lower bottom plate are fixedly connected in sequence. It is characterized in that the automotive connector includes a metal insert, a plastic wrapping part and a plastic plugging part. The metal insert is a convex-shaped frame, and a plurality of communication holes are opened on the peripheral wall of the metal insert. The plastic wrapping part wraps around the outside of the metal insert, and the plastic plugging part is located inside the metal insert. The plastic wrapping part and the plastic plugging part are connected together through the communication holes;

[0005] A forming groove is opened on the upper template, and a vertically penetrating feeding hole is opened on the lower template. A feeding slide bar inserted into the feeding hole is arranged between the two vertical plates. A support plate is fixed at the bottom of the feeding slide bar. A plurality of metal inserts are sleeved on the feeding slide bar along its length direction. A lifting air cylinder is fixed on the lower end surface of the lower bottom plate. The telescopic rod of the lifting air cylinder passes through the lower bottom plate and is connected to the support plate. A step for the upper end of the metal insert to abut against is provided in the forming groove, and a plurality of protruding forming blocks are arranged at the top of the feeding slide bar;

[0006] A plurality of feeding air cylinders are fixed on the lower bottom plate. A pushing part is slidably matched on the feeding slide bar. The telescopic rod of the feeding air cylinder is connected to the pushing part, and the upward movement of the pushing part drives the upward movement of the metal insert.

[0007] Further, a plurality of limiting blocks are clamped on the lower bottom plate, and the upper ends of the limiting blocks can abut against the support plate. After the lifting air cylinder drives the support plate to rise, the limiting blocks can be removed from the lower bottom plate. At this time, the lifting air cylinder is used to drive the support plate to descend, so that the upper end of the feeding slide rod disengages from the feeding hole, facilitating the workers to put the metal inserts on the feeding slide rod one by one, achieving the purpose of replenishing the metal inserts into the mold.

[0008] Further, when the support plate abuts against the limiting blocks, the forming block is flush with the upper surface of the lower template.

[0009] Further, an injection connection end is formed on the upper top plate, and an injection runner is formed on the upper template. The upper end of the injection runner is communicated with the injection connection end, and the lower end of the injection runner is communicated with the forming groove.

[0010] Further, the pushing member includes a horizontal plate and a sliding sleeve portion. The sliding sleeve portion is vertically connected to the horizontal plate. After the pushing member moves upward, the sliding sleeve portion can enter the feeding hole. The sliding sleeve portion has the same shape as the metal insert and can enter the feeding hole along the feeding slide rod, so that the last metal insert on the feeding slide rod is pushed into the forming groove.

[0011] The injection molding machine drives the upper template and the lower template to close the mold. The feeding air cylinder drives the pushing member to rise, so that the metal insert moves upward along the feeding slide rod. The uppermost metal insert enters the forming groove until the upper end of the metal insert abuts against the step of the forming groove. Connect the feeding pipe to the injection connection end, and the molten plastic enters the injection runner and finally fills the forming groove. After the automotive connector product cools down, the mold is opened. The feeding air cylinder continues to drive the metal insert to rise, pushing the product out of the lower template. After the product is taken out, the mold is closed again, and the metal insert continues to rise until it abuts against the step, repeating the injection molding process.

[0012] Compared with the prior art, the injection mold for the automotive connector with metal inserts has the following advantages:

[0013] 1. Workers can centrally put the metal inserts on the feeding slide rod one by one, and the feeding air cylinder automatically sends the metal inserts into the forming groove, realizing the automatic feeding function. It is not necessary for workers to place the metal inserts on the mold every time, reducing potential safety hazards and the labor intensity of workers.

[0014] 2. While feeding the next metal insert, the action of pushing the previous product out of the lower template is also completed, making the structure of this injection mold simple and having fewer components. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 is a cross-sectional view of the injection mold for the automotive connector with metal inserts.

[0016] Figure 2 is a perspective view of the injection mold for the automotive connector with metal inserts.

[0017] Figure 3 It is a product drawing of an automotive connector.

[0018] Figure 4 It is a cross-sectional view of an automotive connector.

[0019] Figure 5 It is a structural schematic diagram of a metal insert.

[0020] Figure 6 It is a structural schematic diagram of a loading slide bar.

[0021] Figure 7 It is a structural schematic diagram of a pushing member.

[0022] In the figure, 1. upper top plate; 2. upper template; 21. forming groove; 22. step; 23. injection molding runner; 3. lower template; 4. vertical plate; 5. lower bottom plate; 6. automotive connector; 61. metal insert; 62. plastic wrapping part; 63. plastic plugging part; 64. communication hole; 7. loading slide bar; 8. support plate; 9. lifting cylinder; 10. forming block; 11. loading cylinder; 12. pushing member; 121. horizontal plate; 122. sliding sleeve part; 13. limiting block; 14. injection molding connection end. Specific embodiments

[0023] The following are specific embodiments of the present invention and in combination with the attached drawings, the technical solutions of the present invention are further described, but the present invention is not limited to these embodiments.

[0024] As Figure 1-2 shown, the injection molding die of the automotive connector with a metal insert includes an upper top plate 1, an upper template 2, a lower template 3, a vertical plate 4 and a lower bottom plate 5. The upper top plate 1 is fixedly connected to the upper template 2, and the lower template 3, the vertical plate 4 and the lower bottom plate 5 are fixedly connected in sequence.

[0025] A forming groove 21 is formed on the upper template 2, a feeding hole vertically penetrating is formed on the lower template 3, a loading slide bar 7 inserted into the feeding hole is arranged between the two vertical plates 4, a support plate 8 is fixed at the bottom of the loading slide bar 7, a plurality of metal inserts 61 are sleeved on the loading slide bar 7 along its length direction, a lifting cylinder 9 is fixed on the lower end face of the lower bottom plate 5, and the telescopic rod of the lifting cylinder 9 passes through the lower bottom plate 5 and is connected to the support plate 8. A step 22 for the upper end of the metal insert 61 to abut against is provided in the forming groove 21, and a plurality of protruding forming blocks 10 are provided at the top of the loading slide bar 7. An injection molding connection end 14 is formed on the upper top plate 1, an injection molding runner 23 is formed on the upper template 2, the upper end of the injection molding runner 23 is communicated with the injection molding connection end 14, and the lower end of the injection molding runner 23 is communicated with the forming groove 21.

[0026] A plurality of loading cylinders 11 are fixed on the lower bottom plate 5. A pushing member 12 is slidably engaged on the loading slide bar 7. The telescopic rod of the loading cylinder 11 is connected to the pushing member 12. When the pushing member 12 moves upward, the metal insert 61 is driven to move upward.

[0027] As Figures 3-5 shown, the automotive connector 6 includes a metal insert 61, a plastic wrapping portion 62, and a plastic plugging portion 63. The metal insert 61 is a convex-shaped frame. A plurality of communication holes 64 are formed in the peripheral wall of the metal insert 61. The plastic wrapping portion 62 is wrapped outside the metal insert 61. The plastic plugging portion 63 is located inside the metal insert 61. The plastic wrapping portion 62 and the plastic plugging portion 63 are connected together through the communication holes 64.

[0028] A plurality of limit blocks 13 are clamped on the lower bottom plate 5. The upper end of the limit block 13 can abut against the support plate 8. After the lifting cylinder 9 drives the support plate 8 to rise, the limit block 13 can be removed from the lower bottom plate 5. At this time, the lifting cylinder 9 is used to drive the support plate 8 to descend again, so that the upper end of the loading slide bar 7 is disengaged from the loading hole, which is convenient for workers to sleeved the metal inserts 61 on the loading slide bar 7 one by one, achieving the purpose of replenishing the metal inserts 61 into the mold.

[0029] As Figure 6 shown, when the support plate 8 abuts against the limit block 13, the forming block 10 is flush with the upper surface of the lower template 3.

[0030] As Figure 7 shown, the pushing member 12 includes a horizontal plate 121 and a sliding sleeve portion 122. The sliding sleeve portion 122 is vertically connected to the horizontal plate 121. After the pushing member 12 moves upward, the sliding sleeve portion 122 can enter the loading hole. The sliding sleeve portion 122 has the same shape as the metal insert 61 and can enter the loading hole along the loading slide bar 7, so that the last metal insert 61 on the loading slide bar 7 is pushed into the forming groove 21.

[0031] Injection molding process: The injection molding machine drives the upper template 2 and the lower template 3 to close the mold. The loading cylinder 11 drives the pushing member 12 to rise, so that the metal insert 61 moves upward along the loading slide bar 7. The uppermost metal insert 61 enters the forming groove 21 until the upper end of the metal insert 61 abuts against the step 22 of the forming groove 21. Connect the feeding pipe to the injection connection end 14. The molten plastic enters the injection runner 23 and finally fills the forming groove 21. The plastic is tightly connected to the metal insert 61. After the automotive connector 6 product is cooled, the mold is opened. The loading cylinder 11 continues to drive the metal insert 61 to rise, pushing the product out of the lower template 3. After the product is taken out, the mold is closed again. The metal insert 61 continues to rise until it abuts against the step 22, and the injection molding process is repeated.

[0032] The specific embodiments described herein are merely illustrative of the spirit of the present utility model. Those skilled in the art to which the present utility model pertains may make various modifications or supplements to the described specific embodiments or use similar means for substitution, but they will not deviate from the spirit of the present utility model or exceed the scope defined by the appended claims.

Claims

1. An injection mold for an automotive connector with a metal insert, comprising an upper top plate, an upper mold plate, a lower mold plate, a vertical plate and a lower bottom plate, wherein the upper top plate is fixedly connected to the upper mold plate, and the lower mold plate, the vertical plate and the lower bottom plate are fixedly connected in sequence, characterized in that: The automobile connector includes a metal insert, a plastic wrapping part, and a plastic plug-in part. The metal insert is a convex-shaped frame. A plurality of connecting holes are opened on the peripheral wall of the metal insert. The plastic wrapping part is wrapped on the outside of the metal insert. The plastic plug-in part is located on the inside of the metal insert. The plastic wrapping part and the plastic plug-in part are connected together through the connecting holes. A forming groove is provided on the upper template, a vertically penetrating feeding hole is provided on the lower template, a feeding slide rod inserted into the feeding hole is provided between the two vertical plates, a support plate is fixed at the bottom of the feeding slide rod, a plurality of metal inserts are sleeved along the length direction of the feeding slide rod, a lifting cylinder is fixed at the lower end surface of the lower bottom plate, a telescopic rod of the lifting cylinder passes through the lower bottom plate and is connected to the supporting plate, a step is provided in the forming groove for the upper end of the metal insert to abut against, and a plurality of raised forming blocks are provided on the top of the feeding slide rod; A plurality of feeding cylinders are fixed on the lower bottom plate, a pushing piece is slidably provided on the feeding slide bar, a telescopic rod of the feeding cylinder is connected with the pushing piece, and the pushing piece moves upward to drive the metal insert to move upward.

2. The injection mold of an automotive connector with a metal insert according to claim 1, characterized in that: A plurality of limit blocks are embedded on the lower bottom plate, and the upper ends of the limit blocks can abut against the support plate.

3. The injection mold of an automotive connector with a metal insert according to claim 2, characterized in that: When the support plate abuts against the limiting block, the forming block is flush with the upper surface of the lower template.

4. The injection mold of an automotive connector with a metal insert according to claim 1, characterized in that: The upper top plate is provided with an injection connection end, the upper mold plate is provided with an injection flow channel, the upper end of the injection flow channel is communicated with the injection connection end, and the lower end of the injection flow channel is communicated with the molding groove.

5. The injection mold of an automotive connector with a metal insert according to claim 1, characterized in that: The pusher comprises a horizontal plate and a sliding sleeve portion, wherein the sliding sleeve portion is vertically connected to the horizontal plate, and the sliding sleeve portion can enter into the feeding hole after the pusher moves upward.

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