Integrated demolding mechanism for multi-cavity injection mold

Abstract

The utility model provides a multi-cavity injection mold integrated demolding mechanism which comprises a lower mold, the lower surface of the lower mold is fixedly connected with a fixing plate, the lower surface of the fixing plate is fixedly connected with a bottom plate, the upper surface of the bottom plate is fixedly connected with a vertical plate and a hydraulic cylinder, and the upper end of the vertical plate is fixedly connected with a positioning column. Meanwhile, one end of the rotating plate is movably connected with a movable plate through a bearing, the lower surface of the movable plate is fixedly connected with a telescopic rod of a hydraulic cylinder, the upper surface of the other end of the rotating plate abuts against a fixed column, and the upper end of the fixed column penetrates through a through hole formed in the lower die to be fixedly connected with a push plate; the lower ends of the fixing columns are sleeved with springs through limiting rings. According to the multi-cavity injection mold, the hydraulic cylinder, the movable plate, the rotating plate and the fixed column are matched, so that an integrated demolding structure can be arranged in the multi-cavity injection mold, and the demolding efficiency of an injection product can be effectively improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to injection mold technical field, concretely relates to a multi -cavity injection mold integrated demolding mechanism. BACKGROUND

[0002] Injection mold is the tool of producing plastic product, it will be hot melt material by high pressure injection into mould cavity, after cooling solidification, get the molding product, multi -cavity injection mold is the injection mold that is provided with multiple injection cavities, and multi -cavity injection mold is also a kind of injection mold.

[0003] After searching, a kind of novel multi -cavity injection mold (announcement number: CN210415300U) in prior art is disclosed, which is described as "the outer surface of the first die holder is provided with a distribution die holder, the inside center of the distribution die holder is provided with an injection port, the inner surface of the first die holder is fixedly installed with a first mold on one side, the inner surface of the second die holder is fixedly installed with a second mold on the side close to the first mold, the inside one side of the injection port is sleeved with a sleeve, and the bottom end one side of the sleeve is fixedly installed with a multi -head connecting pipe.";The overall device can realize multi -cavity injection by the distribution die holder, so that injection can be carried out from the injection port, the material injected by the multi -head connecting pipe of the distribution die holder is injected into the first injection cavity and the second injection cavity, so that multi -cavity injection can be realized at the same time, so that the efficiency of the overall device can be effectively improved, and the user is convenient to use, but the mold lacks corresponding unified demolding structure in actual use, so that the injection molded parts need to be taken out from the injection cavity one by one after forming, which will make the demolding efficiency of the injection molded parts lower, and then affect the production efficiency of the mold. UTILITY MODEL CONTENTS

[0004] In order to overcome the defects in the prior art, a multi -cavity injection mold integrated demolding mechanism is provided to solve the problems in the background art.

[0005] In order to achieve the above purpose, a multi -cavity injection mold integrated demolding mechanism is provided, which comprises: a lower mold, the upper surface of the lower mold is attached to an upper mold, the upper surface of the lower mold is symmetrically provided with an injection cavity, and the bottom of the injection cavity is slidably connected with a push plate, the lower surface of the lower mold is fixedly connected with a fixed plate, the lower surface of the fixed plate is fixedly connected with a bottom plate, the upper surface of the bottom plate is fixedly connected with a vertical plate and a hydraulic cylinder respectively, the upper end of the vertical plate is fixedly connected with a positioning column, the positioning column is movably connected in the positioning groove in the middle of the rotating plate, one end of the rotating plate is movably connected with a moving plate through a bearing, the lower surface of the moving plate is fixedly connected with the extension rod of the hydraulic cylinder, the upper surface of the other end of the rotating plate abuts against a fixed column, the upper end of the fixed column passes through the through hole in the lower mold and is fixedly connected with the push plate, and the lower end of the fixed column is sleeved with a spring through a limiting ring.

[0006] Preferably, the fixed plate is a square tubular structure, and a plurality of groups of positioning blocks are fixedly connected to the four edges of the upper surface of the fixed plate at equal intervals along the length direction, and the plurality of groups of positioning blocks are all cylindrical structures, and a positioning hole is formed on the lower surface of the lower mold corresponding to the position of the positioning block.

[0007] Preferably, the fixed column fixedly connected to the lower surface of the push plate is a cylindrical structure, the push plate and the fixed column together form a T-shaped structure in cross section, and the lower end of the fixed column is a hemispherical structure, and the size of the push plate and the injection cavity is matched.

[0008] Preferably, the fixed column fixedly connected to the lower end of the fixed column is a circular structure, the outer diameter of the limiting ring is greater than the outer diameter of the spring, and the rotating plate abutting against the lower end of the fixed column is a rectangular structure.

[0009] Preferably, the vertical plate is an isosceles trapezoidal structure, the positioning column fixedly connected to the upper end of the vertical plate is a cylindrical structure, and the vertical plate and the positioning column together form a U-shaped structure, and the size of the positioning groove formed in the middle of the positioning column and the rotating plate is matched, and the positioning groove is a cuboid structure as a whole.

[0010] Preferably, the moving plate is a rectangular structure, two groups of installation grooves are symmetrically formed on the two sides of the moving plate, and the moving plate and the installation grooves together form an I-shaped structure, and the two groups of rotating plates are movably connected to the two sides of the moving plate through the installation grooves.

[0011] Preferably, the two sides of the inner cavity of the fixed plate are symmetrically connected to two groups of limiting plates, the two groups of limiting plates are both rectangular structures, and the bottom plate fixedly connected to the lower surface of the fixed plate is a square structure, and the fixed plate and the bottom plate together form a concave structure.

[0012] Compared with the prior art, the beneficial effects of the utility model are that through cooperation of the hydraulic cylinder, the moving plate, the rotating plate, the vertical plate, the positioning column and the fixed column, the injection mold can uniformly demold the injection products in the plurality of injection cavities when demolding, thereby effectively improving the demolding efficiency of the injection products, and through cooperation of the fixed column, the spring and the limiting ring, the push plate in the injection mold can have the function of automatic resetting, facilitating injection production of the next batch, thereby effectively improving the production efficiency of the mold. BRIEF DESCRIPTION OF DRAWINGS

[0013] Figure 1 It is a front view schematic diagram of the utility model embodiment.

[0014] Figure 2 It is a demolding front view schematic diagram of the utility model embodiment.

[0015] Figure 3 It is a demolding side view schematic diagram of the utility model embodiment.

[0016] Figure 4 It is the fixed plate and the rotating plate top view schematic diagram of the embodiment of the utility model.

[0017] Figure 5 It is the fixed plate and the rotating plate section structure schematic diagram of the embodiment of the utility model.

[0018] In the drawing: 1, upper mould; 2, lower mould; 3, injection cavity; 4, push plate; 5, fixed column; 6, positioning block; 7, spring; 8, limiting plate; 9, limiting ring; 10, fixed plate; 11, bottom plate; 12, rotating plate; 13, vertical plate; 14, positioning column; 15, hydraulic cylinder; 16, moving plate. DETAILED DESCRIPTION

[0019] Referring to Figures 1 to 5 As shown in the utility model provides a kind of multi-cavity injection mould integrated demoulding mechanism, it includes: lower mould 2, upper surface of lower mould 2 is attached and set upper mould 1, and the upper surface of lower mould 2 is symmetrically opened injection cavity 3, and injection cavity 3 bottom is slidably connected push plate 4, the lower surface of lower mould 2 is fixedly connected fixed plate 10, the lower surface of fixed plate 10 is fixedly connected bottom plate 11, and the upper surface of bottom plate 11 is fixedly connected vertical plate 13 and hydraulic cylinder 15 respectively, and the upper end of vertical plate 13 is fixedly connected positioning column 14, positioning column 14 is movably connected in the positioning groove of rotating plate 12 middle part, while rotating plate 12 one end is movably connected moving plate 16 by bearing, the lower surface of moving plate 16 is fixedly connected the telescopic rod of hydraulic cylinder 15, and the upper surface of rotating plate 12 other end is abutted fixed column 5, the upper end of fixed column 5 passes through the through hole of lower mould 2 and is fixedly connected push plate 4, and the lower end of fixed column 5 is sleeved spring 7 by limiting ring 9.

[0020] In the embodiment, the upper die 1 and the lower die 2 are first completed to complete the mold, the injection material is injected into the built-in distribution structure of the upper die 1 through the injection pipe, and then the plurality of injection cavities 3 opened by the lower die 2 can be simultaneously injection molded. When the injection product needs to be demolded, the upper die 1 is first removed, so that the injection cavity 3 is in communication with the outside, and then the switch of the hydraulic cylinder 15 is started. The hydraulic cylinder 15 drives the moving plate 16 to move downward through the extension rod, and the moving plate 16 drives one end of the rotating plate 12 to move downward synchronously through the bearing. The middle part of the rotating plate 12 rotates around the positioning column 14 as the axis, so that the end of the rotating plate 12 away from the moving plate 16 can move upward synchronously, so that the rotating plate 12 can simultaneously push the plurality of fixed columns 5 abutting to move upward synchronously. The fixed column 5 will extrude the spring 7 sleeved through the limiting ring 9 during the upward movement of the fixed column 5, and the upper end of the fixed column 5 will push the injection product upward synchronously through the push plate 4, thereby realizing unified demolding of the plurality of injection products, improving the demolding efficiency of the mold, and then starting the reset switch of the hydraulic cylinder 15. The extension rod of the hydraulic cylinder 15 drives the moving plate 16 to move upward and reset, and the rotating plate 12 is also reset synchronously. The push plate 4 and the fixed column 5 can also move downward and reset synchronously under the double action of the extruded spring 7 and the weight, so as to facilitate the mold to carry out the next batch of injection production, and improve the overall production efficiency of the mold.

[0021] As a preferred embodiment, the fixed plate 10 is in a square tube structure, and a plurality of positioning blocks 6 are fixedly connected to the upper surface of the fixed plate 10 at equal intervals along the length of the four edges, and the plurality of positioning blocks 6 are in a cylindrical structure. The lower surface of the lower die 2 corresponds to the positions of the positioning blocks 6 and is provided with positioning holes.

[0022] In the embodiment, as Figure 1 , Figure 4 and Figure 5 , the structure of the fixed plate 10 can be arranged so that the integrated demolding structure of the mold can be in a relatively closed space, thereby reducing the probability of failure of the demolding structure due to external interference. The size of the positioning block 6 and the positioning hole is matched, which can assist in enhancing the convenience of installing the fixed plate 10 on the lower surface of the lower die 2.

[0023] As a preferred embodiment, the fixed column 5 fixedly connected to the lower surface of the push plate 4 is in a cylindrical structure, and the combination of the push plate 4 and the fixed column 5 is in a T-shaped structure in cross section, and the lower end of the fixed column 5 is in a hemispherical structure. The size of the push plate 4 and the injection cavity 3 is matched.

[0024] In the embodiment, as Figure 1 and Figure 2, the size of the push plate 4 and the injection cavity 3 is matched, which can help improve the quality of the injection product and reduce the probability of defective products, and the structure of the lower end of the fixed column 5 can help enhance the smoothness when the fixed column 5 and the rotating plate 12 abut and slide, reducing the difficulty of the rotating plate 12 pushing the injection product out of the mold through the fixed column 5 and the push plate 4.

[0025] As a preferred embodiment, the limiting ring 9 fixedly connected to the lower end of the fixed column 5 is in a circular structure, the outer diameter of the limiting ring 9 is greater than the outer diameter of the spring 7, and the rotating plate 12 abutting the lower end of the fixed column 5 is in a rectangular structure.

[0026] In this embodiment, as Figure 1 and Figure 2 , the setting of the limiting ring 9 can effectively avoid the probability of the spring 7 accidentally detaching from the surface of the fixed column 5, and can also synchronize the extrusion of the spring 7 when the fixed column 5 moves upwards, thereby ensuring that the fixed column 5 can drive the push plate 4 to automatically reset under the action of the extruded spring 7.

[0027] As a preferred embodiment, the vertical plate 13 is in an isosceles trapezoidal structure, the positioning column 14 fixedly connected to the upper end of the vertical plate 13 is in a cylindrical structure, and the vertical plate 13 and the positioning column 14 together form a U-shaped structure, and the positioning column 14 and the positioning groove in the middle of the rotating plate 12 are matched in size, and the positioning groove is in a cuboid structure.

[0028] In this embodiment, as Figure 1 , Figure 3 , Figure 4 and Figure 5 , the structure of the vertical plate 13 can not only help enhance the stability of the positioning column 14, but also help enhance the stability of the fixed connection between the vertical plate 13 and the bottom plate 11, and the positioning column 14 and the positioning groove are matched in size, which can help enhance the stability of the rotating plate 12 when rotating.

[0029] As a preferred embodiment, the moving plate 16 is in a rectangular structure, two groups of installation grooves are symmetrically provided on both sides of the moving plate 16, and the moving plate 16 and the installation grooves together form an I-shaped structure, and the moving plate 16 is movably connected to the two groups of rotating plates 12 through the installation grooves.

[0030] In this embodiment, as Figure 1 , Figure 4 and Figure 5 , the setting of the moving plate 16 enables the hydraulic cylinder 15 to simultaneously drive multiple groups of rotating plates 12 to rotate synchronously, thereby effectively simplifying the demolding structure inside the mold, reducing equipment costs, and facilitating subsequent maintenance.

[0031] As a preferred embodiment, two groups of limiting plates 8 are symmetrically connected on both sides of the inner cavity of the fixed plate 10, both groups of limiting plates 8 are rectangular structures, and the bottom plate 11 fixedly connected to the lower surface of the fixed plate 10 is a square structure, and the fixed plate 10 and the bottom plate 11 are combined together to form a concave structure.

[0032] In this embodiment, as Figure 1 、 Figure 4 and Figure 5 , the setting of the limiting plate 8 can effectively limit the rotation range of the rotating plate 12, thereby avoiding the spring 7 sleeved with the fixed column 5 from being excessively pressed, reducing the probability of damage of the spring 7, prolonging the service life of the spring 7, and the setting of the bottom plate 11 enables the demolding structure of the mold to be combined with the fixed plate 10 to form a unified whole mechanism.

[0033] The integrated demolding mechanism of the multi-cavity injection mold can make the inside of the multi-cavity injection mold have an integrated demolding structure through the cooperation of the hydraulic cylinder 15, the moving plate 16, the rotating plate 12 and the fixed column 5, thereby effectively improving the demolding efficiency of the injection molded product, and under the cooperation of the fixed column 5, the spring 7 and the limiting ring 9, the push plate 4 has an automatic reset function, thereby assisting to improve the overall production efficiency of the injection molded product.

Claims

1. A multi-cavity injection mold integrated demolding mechanism, comprising: The lower mold (2) is symmetrically provided with injection cavities (3) on the upper surface, and the bottom of the injection cavity (3) is slidably connected with a push plate (4), characterized in that: the lower surface of the lower mold (2) is fixedly connected with a fixed plate (10), the lower surface of the fixed plate (10) is fixedly connected with a bottom plate (11), and the upper surface of the bottom plate (11) is fixedly connected with a vertical plate (13) and a hydraulic cylinder (15), respectively, and the upper end of the vertical plate (13) is fixedly connected with a positioning column (14) which is movably connected in a positioning groove in the middle of a rotating plate (12), one end of the rotating plate (12) is movably connected with a moving plate (16) through a bearing, the lower surface of the moving plate (16) is fixedly connected with the telescopic rod of the hydraulic cylinder (15), and the upper surface of the other end of the rotating plate (12) abuts against a fixed column (5), the upper end of the fixed column (5) passes through a through hole in the lower mold (2) and is fixedly connected with the push plate (4), and the lower end of the fixed column (5) is sleeved with a spring (7) through a limiting ring (9).

2. The integrated stripping mechanism for a multi-cavity injection mold of claim 1, wherein, The fixed plate (10) is a square tubular structure, a plurality of groups of positioning blocks (6) are fixedly connected to the four edges of the upper surface of the fixed plate (10) at equal intervals along the length direction, and the plurality of groups of positioning blocks (6) are all cylindrical structures, and the lower surface of the lower mold (2) is correspondingly provided with positioning holes at positions corresponding to the positioning blocks (6).

3. The integrated stripping mechanism for a multi-cavity injection mold of claim 1, wherein, The fixed column (5) fixedly connected to the lower surface of the push plate (4) is a cylindrical structure, the combination of the push plate (4) and the fixed column (5) has a T-shaped cross section, the lower end of the fixed column (5) is a hemispherical structure, and the sizes of the push plate (4) and the injection cavity (3) are matched.

4. The integrated stripping mechanism for a multi-cavity injection mold of claim 1, wherein, The limiting ring (9) fixedly connected to the lower end of the fixed column (5) is a circular structure, the outer diameter of the limiting ring (9) is greater than the outer diameter of the spring (7), and the rotating plate (12) abutting against the lower end of the fixed column (5) is a rectangular structure.

5. The integrated stripping mechanism for a multi-cavity injection mold of claim 1, wherein, The vertical plate (13) is an isosceles trapezoidal structure, the positioning column (14) fixedly connected to the upper end of the vertical plate (13) is a cylindrical structure, the combination of the vertical plate (13) and the positioning column (14) has a U-shaped structure, the positioning column (14) and the positioning groove in the middle of the rotating plate (12) are matched in size, and the positioning groove has a cuboid structure as a whole.

6. The integrated stripping mechanism for a multi-cavity injection mold of claim 1, wherein, The moving plate (16) is a rectangular structure, two groups of installation grooves are symmetrically formed on the two sides of the moving plate (16), and the combination of the moving plate (16) and the installation grooves has an I-shaped structure, and the two groups of rotating plates (12) are movably connected to the two sides of the moving plate (16) through the installation grooves.

7. The integrated stripping mechanism for a multi-cavity injection mold of claim 1, wherein, The two groups of limiting plates (8) symmetrically connected to the two sides of the inner cavity of the fixed plate (10) are both rectangular structures, the bottom plate (11) fixedly connected to the lower surface of the fixed plate (10) is a square structure, and the combination of the fixed plate (10) and the bottom plate (11) has a concave structure.

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