Injection mold for rubber sheath processing

Abstract

The utility model relates to the technical field of molds, and discloses an injection mold for processing a rubber sheath, which is characterized in that when a fixed plate moves downwards, a cross rod is driven to move together, so that the cross rod is propped against an inclined surface of a clamping hook and forces the clamping hook to rotate, and when the clamping hook rotates by a certain angle, a torsion spring II is stretched; after the cross rod moves to the inner side of the clamping hook, the second torsion spring pulls back the clamping hook and hooks the cross rod, so that the lower mold base cannot be lifted, when the connecting plate is lifted after injection molding of the injection molding equipment, the lower mold base cannot be lifted due to the fact that the clamping hook hooks the cross rod, but after the connecting plate is lifted by a certain distance, the top face of the triangular block abuts against the inclined face of the inclined face block; therefore, the inclined plane block pushes the push rod to enable the push rod to push the clamping hook to rotate, the compressed second spring and the compressed first spring can instantly drive the lower die base to rise, certain vibration and shaking are generated when the lower die base rises, and a rubber sheath formed in the lower die base is easier to demold.

Description

TECHNICAL FIELD

[0001] The utility model relates to mould technical field, concretely is a kind of injection mould for rubber sheath processing. BACKGROUND

[0002] Mold is a kind of tool for manufacturing, shaping and processing various materials. Mold has very wide application, can be used to produce various industrial products, daily necessities and artworks, and mold technology is an important part of modern manufacturing, and it is of great significance to improve product quality, reduce production cost and meet diversified market demand.

[0003] But some thin rubber sheath is injected after forming, and is demoulded by ejector pin type mould, and it is easy to make the ejector pin collide with the outer wall of the rubber sheath, so that the deformed rubber sheath after forming is deformed or even damaged, thereby affecting the processing and use of subsequent rubber sheath. UTILITY MODEL CONTENT

[0004] The utility model aims at providing a kind of injection mould for rubber sheath processing to solve the problems raised in the above background.

[0005] To achieve the above object, the utility model provides the following technical scheme: a kind of injection mould for rubber sheath processing, including base, control part and connecting plate, the control part includes:

[0006] Upper die holder, the top surface of the upper die holder is fixedly connected with the bottom surface of connecting plate, the inside of the base is penetrated by lower die holder, the bottom surface of the connecting plate is fixedly connected with the embedded rod, the surface of the embedded rod is provided with through hole, the inside of the through hole is penetrated and hinged with triangular block, torsion spring one is fixedly connected between the triangular block and the inside of the through hole, when connecting plate moves downward, embedded rod will be gradually inserted into base, and embedded rod will drive the inclined surface of triangular block to resist inclined surface block, so that triangular block shrinks and compresses torsion spring one.

[0007] Preferably, the side surface of the lower die holder is fixedly connected with fixed plate, the number of the fixed plate is two groups, and the two groups of fixed plate are fixedly connected with horizontal rod, when fixed plate moves downward, horizontal rod will be moved together, so that horizontal rod resists the inclined surface of hook and forces hook to rotate, hook rotates a certain angle and will stretch torsion spring two, after horizontal rod moves to the inside of hook, torsion spring two will pull back hook and hook horizontal rod, so that lower die holder cannot be lifted.

[0008] Preferably, a support rod is fixedly connected to the bottom surface of the fixing plate. The bottom end of the support rod passes through the base and is slidably connected to the fixing plate. A spring is fixedly connected to the inner side of the base. When the top of the triangular block exceeds the bottom of the inclined block, the torsion spring will push the triangular block back. At the same time, the upper mold base and the lower mold base are attached and pushed to embed the lower mold base into the base. At this time, the lower mold base will compress the spring through the telescopic rod, and the fixing plate will compress the spring.

[0009] Preferably, a fixed column is connected through and fixedly to the inner side of the base, a telescopic rod is connected through and slidably to the top of the fixed column, and a spring is fixedly connected between the telescopic rod and the inner wall of the fixed column.

[0010] Preferably, the inner side of the base is hinged with a hook. When the connecting plate is raised after injection molding, the lower mold base cannot be raised because the hook is caught on the crossbar. However, after the connecting plate is raised a certain distance, the top surface of the triangular block will abut against the inclined surface of the inclined block, thereby causing the inclined block to push the push rod, which in turn pushes the hook to rotate. Then, the compressed spring 2 and spring 1 will instantly drive the lower mold base to rise, causing a certain vibration and shaking when the lower mold base rises. A torsion spring 2 is fixedly connected between the hook and the inner side of the base.

[0011] Preferably, an inclined block is slidably connected through the inner side of the base, and a push rod is fixedly connected to the side of the inclined block near the lower mold base.

[0012] Preferably, the push rod passes through the base and is slidably connected, and a spring is fixedly connected between the inclined block and the inner wall of the base.

[0013] Compared with the prior art, the present invention provides an injection mold for processing rubber sheaths, which has the following beneficial effects:

[0014] 1. In the injection mold for processing the rubber sheath, when the fixed plate moves downward, it will drive the crossbar to move together, so that the crossbar abuts against the inclined surface of the hook and forces the hook to rotate. When the hook rotates to a certain angle, it will stretch the second torsion spring. After the crossbar moves to the inside of the hook, the second torsion spring will pull back the hook and hook the crossbar, so that the lower mold base cannot be raised. When the connecting plate is raised after injection molding, the lower mold base cannot be raised because the hook hooks the crossbar. However, after the connecting plate is raised a certain distance, the top surface of the triangular block will abut against the inclined surface of the inclined block, so that the inclined block pushes the push rod and the push rod pushes the hook to rotate. Then the compressed second spring and the first spring will instantly drive the lower mold base to rise, so that the lower mold base will generate a certain vibration and shaking when it rises, making the rubber sheath formed inside the lower mold base easier to demold.

[0015] 2. The injection mold for processing rubber sheaths, through the overall shaking and vibration of the lower mold base and the upward thrust, prevents ejector pins and other demolding tools from pushing out the molded items after the lower mold base has formed thin items such as rubber sheaths, thus avoiding damage to the molded items. Attached Figure Description

[0016] Figure 1 This is a front view structural diagram of the present invention;

[0017] Figure 2 This is a cross-sectional view of the unfolded structure of the base of this utility model;

[0018] Figure 3 This is an enlarged cross-sectional view of the base of this utility model;

[0019] Figure 4 This is an enlarged structural schematic diagram of the connecting plate of this utility model.

[0020] In the diagram: 1. Base; 2. Control unit; 21. Upper mold base; 22. Lower mold base; 23. Fitting rod; 24. Through hole; 25. Triangular block; 26. Torsion spring one; 27. Fixing plate; 28. Crossbar; 29. ​​Support rod; 210. Spring one; 211. Fixing column; 212. Telescopic rod; 213. Spring two; 214. Hook; 215. Torsion spring two; 216. Inclined block; 217. Push rod; 218. Spring three; 3. Connecting plate. Detailed Implementation

[0021] like Figures 1-4 As shown, this utility model provides a technical solution: an injection mold for processing rubber sheaths, including a base 1, a control unit 2, and a connecting plate 3. The control unit 2 includes:

[0022] The upper mold base 21 is fixedly connected to the bottom surface of the connecting plate 3. The lower mold base 22 passes through the interior of the base 1. The bottom surface of the connecting plate 3 is fixedly connected to the fitting rod 23. The surface of the fitting rod 23 has a through hole 24. A triangular block 25 passes through and is hinged to the inside of the through hole 24. A torsion spring 26 is fixedly connected between the triangular block 25 and the inside of the through hole 24. When the connecting plate 3 moves downward, it will drive the fitting rod 23 to gradually insert into the base 1. The fitting rod 23 will drive the inclined surface of the triangular block 25 to abut against the inclined block 216, causing the triangular block 25 to contract and compress the torsion spring 26. The lower mold base 22 is fixedly connected to a fixing plate 27 on its side. There are two sets of fixing plates 27, and a crossbar 28 is fixedly connected between the two sets of fixing plates 27. When the fixing plate 27 moves downward, it will drive the crossbar 28 to move together, so that the crossbar 28 abuts against the inclined surface of the hook 214 and forces the hook 214 to rotate. When the hook 214 rotates to a certain angle, it will stretch the second torsion spring 215. After the crossbar 28 moves to the inside of the hook 214, the second torsion spring 215 will pull back the hook 214 and hook the crossbar 28, so that the lower mold base 22 cannot be raised. A support rod 29 is fixedly connected to the bottom surface of the fixed plate 27. The bottom end of the support rod 29 passes through the base 1 and is slidably connected to the fixed plate 27. A spring 210 is fixedly connected to the inner side of the base 1. When the top of the triangular block 25 exceeds the bottom end of the inclined block 216, the torsion spring 26 will push the triangular block 25 back. At the same time, the upper mold base 21 and the lower mold base 22 will come into contact and push the lower mold base 22 into the base 1. At this time, the lower mold base 22 will compress the spring 213 through the telescopic rod 212, and the fixed plate 27 will compress the spring 210. A fixed post 211 is fixedly connected to the inner side of the base 1. A telescopic rod 212 is slidably connected to the top of the fixed post 211. A spring 213 is fixedly connected between the telescopic rod 212 and the inner wall of the fixed post 211. A hook 214 is hinged to the inner side of the base 1. When the connecting plate 3 is raised after injection molding, the lower mold base 22 cannot be raised because the hook 214 catches the crossbar 28. However, after the connecting plate 3 is raised a certain distance, the top surface of the triangular block 25 will abut against the inclined surface of the inclined block 216, thereby causing the inclined block 216 to push the push rod 217, which in turn pushes the hook 214 to rotate. Then, the compressed spring 213 and spring 210 will instantly drive the lower mold base 22 to rise, causing a certain vibration and shaking when the lower mold base 22 rises. A torsion spring 215 is fixedly connected between the hook 214 and the inner side of the base 1. An inclined block 216 is slidably connected through the inner side of the base 1. A push rod 217 is fixedly connected to the side of the inclined block 216 near the lower mold base 22. The push rod 217 passes through the base 1 and is slidably connected, and the inclined block 216 is fixedly connected to the inner wall of the base 1 by a spring 218.

[0023] Based on the above implementation method, when using the injection mold, the base 1 and connecting plate 3 are first connected to the injection molding equipment. During mold injection molding, the driving device of the injection molding equipment pushes the connecting plate 3 to engage with the base 1, causing the connecting plate 3 to gradually move towards the base 1. When the connecting plate 3 moves downward, it drives the engaging rod 23 to gradually insert into the base 1. The engaging rod 23 drives the inclined surface of the triangular block 25 to abut against the inclined block 216, causing the triangular block 25 to contract and compress the torsion spring 26. When the top of the triangular block 25 exceeds the bottom of the inclined block 216, the torsion spring 26 pushes the triangular block 25 back. At the same time, the upper mold base 21 and the lower mold base 22 are attached and push the lower mold base 22 into the base 1. At this time, the lower mold base 22 will compress the spring 213 through the telescopic rod 212, and the fixing plate 27 will compress the spring 210. At the same time, when the fixing plate 27 moves downward, it will... The horizontal bar 28 moves together with the horizontal bar, causing it to contact the inclined surface of the hook 214 and force the hook 214 to rotate. The rotation of the hook 214 at a certain angle stretches the second torsion spring 215. As the horizontal bar 28 moves to the inside of the hook 214, the second torsion spring 215 pulls back the hook 214 and hooks the horizontal bar 28, preventing the lower mold base 22 from rising. When the connecting plate 3 is raised after injection molding, the lower mold base 22 is hooked by the hook 214. The crossbar 28 cannot be raised, but after the connecting plate 3 is raised a certain distance, the top surface of the triangular block 25 will abut against the inclined surface of the inclined block 216, thereby causing the inclined block 216 to push the push rod 217 to push the hook 214 to rotate. Then the compressed spring 213 and spring 210 will instantly drive the lower mold base 22 to rise, causing the lower mold base 22 to vibrate and shake when it rises, making the rubber sleeve formed inside the lower mold base 22 easier to demold.

[0024] At the same time, through the overall shaking and vibration of the lower mold base 22 and the upward thrust, the lower mold base 22 prevents ejector pins and other demolding tools from pushing out the molded items after molding thinner items such as rubber sleeves, thus avoiding damage to the molded items.

[0025] The present invention has been described in detail above. However, modifications or improvements can be made to it, which will be obvious to those skilled in the art. Therefore, any modifications or improvements that do not depart from the spirit of the present invention are within the protection scope of the present invention.

Claims

1. An injection mold for processing rubber sheaths, comprising a base (1), a control unit (2), and a connecting plate (3), characterized in that: The control unit (2) includes: an upper mold base (21), the top surface of which is fixedly connected to the bottom surface of the connecting plate (3), a lower mold base (22) penetrating through the interior of the base (1), a fitting rod (23) fixedly connected to the bottom surface of the connecting plate (3), a through hole (24) opened on the surface of the fitting rod (23), a triangular block (25) penetrating and hinged through the inner side of the through hole (24), and a torsion spring (26) fixedly connected between the triangular block (25) and the inner side of the through hole (24).

2. The injection mold for processing rubber sheaths according to claim 1, characterized in that: The lower mold base (22) is fixedly connected to a fixing plate (27) on its side. There are two sets of fixing plates (27), and a crossbar (28) is fixedly connected between the two sets of fixing plates (27).

3. The injection mold for processing rubber sheaths according to claim 2, characterized in that: The bottom surface of the fixing plate (27) is fixedly connected to a support rod (29), the bottom end of the support rod (29) passes through the base (1) and is slidably connected to the inner side of the fixing plate (27) and the base (1) and a spring (210) is fixedly connected.

4. The injection mold for processing rubber sheaths according to claim 1, characterized in that: A fixed column (211) is connected through and fixedly connected to the inner side of the base (1). A telescopic rod (212) is connected through and slidably connected to the top of the fixed column (211). A spring (213) is fixedly connected between the telescopic rod (212) and the inner wall of the fixed column (211).

5. The injection mold for processing rubber sheaths according to claim 1, characterized in that: The base (1) is hinged to the inner side with a hook (214), and a torsion spring (215) is fixedly connected between the hook (214) and the inner side of the base (1).

6. The injection mold for processing rubber sheaths according to claim 1, characterized in that: An inclined block (216) is slidably connected through the inner side of the base (1), and a push rod (217) is fixedly connected to the side of the inclined block (216) near the lower mold base (22).

7. The injection mold for processing rubber sheaths according to claim 6, characterized in that: The push rod (217) passes through the base (1) and is slidably connected, and a spring (218) is fixedly connected between the inclined block (216) and the inner wall of the base (1).

Images