Demolding structure for injection molding of plastic product

Abstract

The utility model discloses a demolding structure for injection molding of a plastic product, and relates to the technical field. The device comprises an injection molding structure which comprises a base, a mounting frame fixedly arranged on one side above the base, a hydraulic rod I fixedly arranged in the mounting frame, an upper mold positioned at the telescopic end of the hydraulic rod I, an injection molding pipe communicated with the upper mold, a supporting pipe rotationally arranged in the base in a penetrating manner, and a lower mold distributed at the upper end of a turntable; and; a demoulding structure, comprising a second hydraulic rod, a push plate located at the telescopic end of the second hydraulic rod, a stroke opening formed in a lower die and a rotary disc, an ejector block located in the stroke opening, an ejector rod located at the lower end of the ejector block, a semicircular cover fixedly arranged at the upper end of a base, a supporting ring connected to the outer wall of the ejector rod in a sleeving mode, an ejector ring connected to the outer side of the ejector rod in a sleeving mode, and a spring fixedly arranged between the ejector ring and the supporting ring. According to the utility model, the demoulding structure is arranged, so that the problems that the injection mould cannot be used when demoulding is carried out after mould opening, and the processing efficiency of an injection-molded part is reduced are solved.

Description

TECHNICAL FIELD

[0001] The utility model relates to technical fields especially relates to a plastic product injection molding demolding structure. BACKGROUND

[0002] The relationship between plastic products and injection molds is complementary, injection molds are tools for injecting molten plastic materials into mold cavities for molding, the shape and structure of the mold determine the shape and size of the final plastic product.

[0003] Chinese patent discloses a kind of injection molding of central control ornament plate (authorized announcement No.CN115091705B), the patent technology includes: connecting assembly, including positioning piece, locking piece and clamping piece, the positioning piece is horizontally clamped with locking piece limit;Male die plate, including male die, corresponding die seat and sealing plate, the four corners of male die outside and die seat outside are horizontally clamped with clamping piece limit.The present application makes that female die, clamping piece and die seat are tightly limited at four corners by clamping piece, the horizontal limit of positioning piece and locking piece, clamping piece axial limit can also be realized, realize using horizontal clamping, reduce the axial wear of injection molding, and injection molding can also be quickly disassembled and assembled.

[0004] The patent technology reduces the wear of mold when in use, but there are still deficiencies in the process of use, after mold opening, injection molding cannot be used when demolding, the processing efficiency of injection molding is reduced, therefore, the technical personnel in the art provide a plastic product injection molding demolding structure to solve the problems in the above background. INVENTION CONTENTS

[0005] 1. Technical scheme

[0006] To solve the above technical problems, the utility model is realized by the following technical schemes:

[0007] The utility model discloses a plastic product injection molding demolding structure, including,

[0008] Injection molding structure, including base, fixedly installed on the one side above base mounting bracket, fixedly installed in the inside of mounting bracket hydraulic rod no. 1, located in the telescopic end of hydraulic rod no. 1 upper die, install injection tube with upper die communication, rotationally penetrate and install in the inside of base support pipe, sleeve joint in the outer wall of support pipe turntable, sleeve joint in the outer wall of turntable gear ring, fixedly installed on the upper end of base motor, located in the output end of motor and the gear ring meshing gear, the lower die of annular array distribution in the upper end side of turntable;

[0009] And;

[0010] The demolding structure comprises a hydraulic rod two fixedly arranged in the mounting frame, a push plate arranged at the telescopic end of the hydraulic rod two, a stroke opening arranged in the lower die and the rotary disc, a top block arranged in the stroke opening, a top rod arranged at the lower end of the top block, a semicircular cover fixedly arranged at the upper end of the base, a supporting ring sleeved on the outer wall of the top rod, a top ring sleeved on the outer side of the upper end of the top rod and connected with the lower end of the rotary disc, and a spring fixedly arranged between the top ring and the supporting ring.

[0011] Further, the upper end of the lower die is provided with a positioning hole, and the lower end of the upper die is provided with a positioning rod.

[0012] Specifically, when the upper die and the lower die are connected, the positioning rod is inserted into the positioning hole to position the connected upper die and lower die.

[0013] Further, the upper end of the base is provided with a ring-shaped guide rail, and the lower end of the rotary disc is provided with a plurality of pulleys arranged in an annular array and rolling arranged in the guide rail.

[0014] Specifically, when the rotary disc rotates, the pulleys at the bottom roll in the guide rail to support the side of the rotary disc, thereby improving the stability of the rotary disc.

[0015] Further, the lower end of the top rod is rotatably arranged with a ball.

[0016] Specifically, when the top rod passes through the semicircular cover, the ball contacts the outer wall of the semicircular cover to reduce the resistance when the top rod passes through.

[0017] Further, the lower end of the rotary disc is provided with a cooling structure, the cooling structure comprises a water tank fixedly arranged at the lower end of the rotary disc, and the outer wall of a section of the supporting pipe arranged in the water tank is provided with a plurality of through holes arranged in an annular array.

[0018] Specifically, the cooling water input through the supporting pipe enters the water tank through the through holes, and the water in the water tank is input into the supporting pipe through the through holes.

[0019] Further, the inner sides of the upper and lower ends of the supporting pipe are embedded with sealing rings, the upper and lower sides of the supporting pipe are respectively provided with a water outlet pipe and a water inlet pipe rotatably arranged in the sealing rings, the inner side of the water tank is provided with a ring groove, and the ring groove is sleeved on the outer side of the guide rod.

[0020] Specifically, when the supporting pipe rotates, the sealing ring is rotatably arranged with the water inlet pipe and the water outlet pipe to ensure the stability of the water inlet pipe and the water outlet pipe.

[0021] 2. Beneficial effects

[0022] Compared with the prior art, the utility model has the advantages that:

[0023] The utility model discloses, hydraulic rod drives the upper die to drop and the butt joint of lower die, and the injection tube input hot melt plastic enters the mould cavity and carries out injection moulding processing, and the upper die lifts after cooling and shaping, and the injection moulding spare rotation to one side of residual in the inner wall of lower die, simultaneously, the new lower die removes the injection moulding processing of corresponding upper die, and the lower die of not taking out injection moulding spare passes through semicircular cover, and the top block of lower die inside elasticity is pushed out, and pushes simultaneously through the push plate, realizes the separation of residual injection moulding spare and discharging, because injection moulding spare does not need to wait for demoulding to carry out the process of injection moulding processing, realizes demoulding simultaneously with injection moulding processing, optimizes the processing flow, improves injection moulding processing efficiency.

[0024] Of course, implementing any product of the utility model does not necessarily need to achieve all the advantages mentioned above at the same time. BRIEF DESCRIPTION OF DRAWINGS

[0025] In order to more clearly illustrate the technical scheme of the embodiments of the utility model, the following will briefly introduce the drawings needed to be used in the embodiment description, and obviously, the drawings in the following description are only some embodiments of the utility model, and for those skilled in the art, other drawings can also be obtained according to these drawings without creative labor.

[0026] Figure 1 It is the front view three-dimensional structure schematic diagram of the utility model;

[0027] Figure 2 It is the top view three-dimensional structure schematic diagram of the utility model;

[0028] Figure 3 It is the bottom view three-dimensional structure schematic diagram of the utility model;

[0029] Figure 4 It is the bottom view three-dimensional structure schematic diagram of the lower die of the utility model;

[0030] Figure 5 It is the front view three-dimensional structure schematic diagram of the support pipe of the utility model.

[0031] In the drawings, the component list represented by each sign is as follows:

[0032] 100, injection structure;101, hydraulic rod one;102, mounting frame;103, upper die;104, lower die;105, gear;106, motor;107, gear ring;108, guide rail;109, pulley;110, base;111, support pipe;112, injection tube;113, turntable;114, positioning rod;115, positioning hole;

[0033] 200, demolding structure; 201, hydraulic rod two; 202, push plate; 203, semicircular cover; 204, stroke port; 205, top block; 206, top ring; 207, spring; 208, ball; 209, support ring; 210, top rod;

[0034] 300, cooling structure; 301, ring groove; 302, water tank; 303, through port; 304, sealing ring; 305, water outlet pipe; 306, water inlet pipe. DETAILED DESCRIPTION

[0035] In order to make the above-mentioned purposes, features and advantages of the utility model more apparent, obvious and easy to understand, the specific embodiments of the utility model will be described in detail below with reference to the drawings.

[0036] In the following description, many specific details are set forth in order to provide a thorough understanding of the utility model, but the utility model can also be implemented in other ways different from those described herein, and those skilled in the art can make similar extensions without departing from the connotation of the utility model, therefore the utility model is not limited by the specific embodiments disclosed below.

[0037] Secondly, the utility model is described in detail in combination with the schematic diagram, when detailing the embodiments of the utility model, for the convenience of illustration, the sectional view of the device structure will be partially enlarged without the general proportion, and the schematic diagram is only an example, which should not limit the scope of protection of the utility model herein. In addition, the three-dimensional spatial dimensions of length, width and depth should be included in actual production.

[0038] In order to make the purposes, technical schemes and advantages of the utility model more clear, the embodiments of the utility model will be described in further detail below in combination with the drawings.

[0039] Example 1

[0040] Please refer to Figures 1-5 The embodiment is a demolding structure for plastic product injection molding, which comprises,

[0041] The injection molding structure 100 comprises a base 110, a mounting frame 102 fixed on one side above the base 110, a hydraulic rod one 101 fixed in the mounting frame 102, an upper mold 103 located at the telescopic end of the hydraulic rod one 101, an injection molding pipe 112 installed in communication with the upper mold 103, a support pipe 111 rotatingly penetrating the inside of the base 110, a rotating disc 113 sleeved on the outer wall of the support pipe 111, a gear ring 107 sleeved on the outer wall of the rotating disc 113, a motor 106 fixed on the upper end of the base 110, a gear 105 located at the output end of the motor 106 and engaged with the gear ring 107, and a lower mold 104 arranged in an annular array on the upper end side of the rotating disc 113.

[0042] And;

[0043] The demolding structure 200 comprises a hydraulic rod two 201 fixed in the inside of the mounting frame 102, a push plate 202 located at the telescopic end of the hydraulic rod two 201, a stroke port 204 opened in the inside of the lower mold 104 and the rotating disc 113, a top block 205 located in the inside of the stroke port 204, a top rod 210 located at the lower end of the top block 205, a semicircular cover 203 fixed at the upper end of the base 110, a supporting ring 209 sleeved on the outer wall of the top rod 210, a top ring 206 sleeved on the outer side of the upper end of the top rod 210 and connected with the lower end of the rotating disc 113, and a spring 207 fixed between the top ring 206 and the supporting ring 209.

[0044] The lower end of the upper mold 103 is provided with a positioning rod 114 at each corner, and the upper end of the lower mold 104 is provided with a positioning hole 115 at each corner.

[0045] The upper end of the base 110 is provided with a ring-shaped guide rail 108, and the lower end of the rotating disc 113 is provided with a plurality of pulleys 109 distributed in an annular array and rolling installed in the inside of the guide rail 108.

[0046] The lower end of the top rod 210 is rotatably installed with a ball 208.

[0047] The demolding structure 200 is used.

[0048] The hydraulic rod drives the upper mold 103 to descend, and the positioning rod 114 is inserted into the positioning hole 115, and the lower mold 104 is docked, the injection pipe 112 inputs liquid material into the mold cavity closed by the upper mold 103 and the lower mold 104, and after cooling and forming, the hydraulic rod drives the upper mold 103 to lift, the positioning rod 114 is separated from the positioning hole 115, and at the same time, the motor 106 drives the gear 105 to rotate, the gear 105 drives the gear ring 107 to rotate, drives the supporting pipe 111 to rotate, drives the rotating disc 113 to rotate, and further drives the lower mold 104 distributed in an annular array to rotate, the rotating disc 113 rotates one station each time, and the new lower mold 104 corresponds to the upper mold 103, so that the injection molding process can be carried out.

[0049] At the same time, the injection molding part remaining in the inside of the lower mold 104 is rotated to one side, and when the top rod 210 passes through the semicircular cover 203 at the corresponding position, the ball 208 walks on the outer wall of the semicircular cover 203, and the top rod 210 is pressed, and the spring 207 is pressed, and the spring 207 is contracted under stress, and the top rod 210 drives the top block 205 to lift, and the injection molding part remaining in the inside of the lower mold 104 is ejected, and the injection molding part is moved to the outside, the hydraulic rod two 201 drives the push plate 202 to move, and the injection molding part is ejected from the rotating disc 113, and the demolding of the injection molding part is realized, and the injection molding process is carried out during demolding, so that the time when the demolding cannot be carried out is saved, and the injection molding efficiency is improved.

[0050] Example 2

[0051] Please refer to Figures 1-5 As shown in the figure, the embodiment is based on the embodiment 1 and further comprises;

[0052] The lower end of the rotating disc 113 is provided with a cooling structure 300, which comprises a water tank 302 fixed at the lower end of the rotating disc 113, and the outer wall of a section inside the water tank 302 is provided with a plurality of through holes 303 arranged in a ring array;

[0053] The inner part of the upper and lower ends of the support pipe 111 is embeddedly installed with a sealing ring 304, and the upper and lower sides of the support pipe 111 are respectively provided with a water outlet pipe 305 and a water inlet pipe 306 rotatably installed in the inner part of the sealing ring 304, and the inner part of the water tank 302 is provided with a ring groove 301, which is sleeved outside the top rod 210;

[0054] The use of the cooling structure 300 is carried out;

[0055] The water inlet pipe 306 and the water outlet pipe 305 are both through pump structures, and when the support pipe 111 rotates, the sealing ring 304 rotates with the outer wall of the water inlet pipe 306 and the water outlet pipe 305, thereby ensuring the stability of the water inlet pipe 306 and the water outlet pipe 305; the cooling water is transmitted to the liquid material in the inner mold cavity of the lower mold 104 and the upper mold 103 through the rotating disc 113, and then the hot melt liquid material is cooled, so that the injection molding part is quickly cooled, and the mold opening time is shortened; when the top rod 210 is used for welding, the top rod 210 moves in the ring groove 301, thereby avoiding the influence of the water tank 302 on the top rod 210; the top rod 210 effectively moves longitudinally, hot water rises and is sucked out through the water outlet pipe 305, the water inlet pipe 306 inputs cooling water into the water tank 302, and circulation cooling is realized; the water inlet pipe 306 and the water outlet pipe 305 are used intermittently, so as to ensure the circulation of the cooling water and prevent the problem that the transported cooling water is directly sucked away.

[0056] In the description of the present application, it should be further pointed out that, unless otherwise specified and limited, the terms "setting", "installing", "connecting", "connecting" should be understood broadly, for example, it can be fixedly connected, or it can be detachably connected, or integrally connected; it can be mechanically connected, or it can be electrically connected; it can be directly connected, or it can be indirectly connected through an intermediate medium; it can be the communication inside two elements. For ordinary skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific situation.

[0057] Finally, it should be noted that: the above only for the preferred embodiments of the present application, and is not intended to limit the present application, although the foregoing embodiments of the present application have been described in detail, for the skilled in the art, it still can be modified, or for the equivalent replacement of part of the technical features of the technical solutions recorded in the foregoing embodiments. Any modification, equivalent replacement, improvement, etc. made within the spirit and principles of the present application, shall be included within the scope of the present application.

Claims

1. A demolding structure for injection molding of a plastic product, characterized by: The injection molding structure (100) comprises a base (110), a mounting frame (102) fixed on one side above the base (110), a hydraulic rod I (101) fixed inside the mounting frame (102), an upper mold (103) located at the telescopic end of the hydraulic rod I (101), an injection molding pipe (112) installed in communication with the upper mold (103), a support pipe (111) rotatingly penetratingly installed inside the base (110), a rotating disc (113) sleeved on the outer wall of the support pipe (111), a gear ring (107) sleeved on the outer wall of the rotating disc (113), a motor (106) fixed on the upper end of the base (110), a gear (105) located at the output end of the motor (106) and engaged with the gear ring (107), and a lower mold (104) arranged in an annular array on the upper end side of the rotating disc (113). And The demolding structure (200) comprises a hydraulic rod II (201) fixed inside the mounting frame (102), a push plate (202) located at the telescopic end of the hydraulic rod II (201), a stroke port (204) opened inside the lower mold (104) and the rotating disc (113), a top block (205) located inside the stroke port (204), a top rod (210) located at the lower end of the top block (205), a semicircular cover (203) fixed on the upper end of the base (110), a support ring (209) sleeved on the outer wall of the top rod (210), a top ring (206) sleeved on the outer side of the upper end of the top rod (210) and connected with the lower end of the rotating disc (113), and a spring (207) fixed between the top ring (206) and the support ring (209). The lower end of the upper mold (103) is provided with a positioning rod (114) at each corner, and the upper end of the lower mold (104) is provided with a positioning hole (115) at each corner.

2. The demolding structure for injection molding of plastic products according to claim 1, characterized in that: The upper end of the base (110) is provided with an annular guide rail (108), and the lower end of the rotating disc (113) is provided with a pulley (109) arranged in an annular array and rollingly installed inside the guide rail (108).

3. The demolding structure for injection molding of plastic products according to claim 1, characterized in that: The lower end of the top rod (210) is rotatably installed with a ball (208).

4. The demolding structure for injection molding of plastic products according to claim 1, characterized in that: The lower end of the rotating disc (113) is provided with a cooling structure (300), and the cooling structure (300) comprises a water tank (302) fixed on the lower end of the rotating disc (113), and the support pipe (111) is located inside the water tank (302) and is provided with a through port (303) arranged in an annular array on the outer wall of a section.

5. The demolding structure for injection molding of plastic products according to claim 1, characterized in that: The inner part of the upper and lower ends of the support pipe (111) is embeddedly installed with a sealing ring (304), and the outer sides of the upper and lower sides of the support pipe (111) are respectively provided with a water outlet pipe (305) and a water inlet pipe (306) rotatably installed inside the sealing ring (304), and the inner part of the water tank (302) is provided with an annular groove (301) sleeved on the outer side of the guide rod.

6. The demolding structure for injection molding of plastic products according to claim 5, characterized in that: ​

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