An automatic demolding plastic mold

Abstract

This utility model relates to the field of plastic mold technology and discloses an automatically demolding plastic mold, including a working base. A servo motor is fixedly connected to the top of the working base, and a glue injection turntable is fixedly connected to the output end of the servo motor. A fixing groove is opened inside the glue injection turntable, and a lower mold is inserted into the fixing groove. Connecting frames are fixedly connected to both sides of the lower mold. A demolding mechanism is provided at the bottom of the lower mold, and a disassembly component is provided at the top of the glue injection turntable. In this utility model, the arrangement of the servo motor, glue injection turntable, fixing groove, lower mold, demolding plate, protrusion, return spring, and push rod enables the demolding of the plastic box formed inside the lower mold, avoiding the inefficiency and product damage that occur during manual demolding, and improving the demolding efficiency of the plastic box after molding.

Description

Technical Field

[0001] This utility model relates to the field of plastic mold technology, and in particular to a plastic mold that can be automatically demolded. Background Technology

[0002] Plastic molds are tools used in the plastics processing industry in conjunction with plastic molding machines to give plastic products a complete shape and precise dimensions. Due to the wide variety of plastics and processing methods, as well as the varying complexity of plastic molding machines and plastic products, plastic molds also come in a wide variety of types and structures.

[0003] The existing technology has the following drawbacks: When using some existing plastic molds, the traditional manual demolding method has problems such as low efficiency, high labor intensity and susceptibility to human factors, which leads to unstable product quality. It is difficult to meet the needs of modern industrial large-scale production, thereby reducing the working efficiency of plastic mold production. Therefore, an automatic demolding plastic mold is proposed to solve the above problems. Utility Model Content

[0004] To overcome the above shortcomings, this utility model provides a plastic mold that can be automatically demolded, aiming to improve the problems of low efficiency and unstable product quality in the prior art of manual demolding.

[0005] To achieve the above objectives, the present invention adopts the following technical solution: an automatically demolding plastic mold, comprising a working base, a servo motor fixedly connected to the top of the working base, an injection turntable fixedly connected to the output end of the servo motor, a fixing groove provided inside the injection turntable, a lower mold inserted into the fixing groove, connecting frames fixedly connected to both sides of the lower mold, a demolding mechanism provided at the bottom of the lower mold, a disassembly assembly provided at the top of the injection turntable, a connecting frame fixedly connected to the side wall of the working base, an electric telescopic rod fixedly connected to the bottom of the connecting frame, an upper mold fixedly connected to the bottom of the electric telescopic rod, and a push rod fixedly connected to the top of the working base;

[0006] The demolding mechanism includes a demolding plate, which is slidably connected to the inner bottom of the lower mold. The side wall of the demolding plate is elastically connected to the lower mold through a return spring, and a protrusion is fixedly connected to the bottom of the demolding plate.

[0007] As a further description of the above technical solution:

[0008] The disassembly assembly includes a connecting plate, the bottom of which is fixedly connected to the top of the glue injection turntable, and a plug rod is elastically connected to the side wall of the connecting plate via a positioning spring. A fixing rod is fixedly connected to the top of the fixing groove.

[0009] As a further description of the above technical solution:

[0010] The bottom of the lower mold has a limiting sliding hole, and the size of the ejector plate is adapted to the size of the limiting sliding hole.

[0011] As a further description of the above technical solution:

[0012] The fixing groove has a through hole inside, and the protrusion extends through the through hole to the outside of the glue injection turntable.

[0013] As a further description of the above technical solution:

[0014] The sidewalls of the protrusion are inclined, the two sides of the push rod are arc-shaped, and the top of the push rod contacts the bottom of the protrusion.

[0015] As a further description of the above technical solution:

[0016] The connecting frame has a connecting hole inside, and the size of the fixing rod is adapted to the size of the connecting hole.

[0017] As a further description of the above technical solution:

[0018] The plug rod is slidably connected inside the connecting plate.

[0019] As a further description of the above technical solution:

[0020] The side wall of the fixing rod is provided with a plug groove, and the plug rod passes through the connecting plate and extends into the plug groove.

[0021] This utility model has the following beneficial effects:

[0022] 1. In this utility model, the servo motor, glue injection turntable, fixing groove, lower mold, demolding plate, protrusion, reset spring and push rod are set up to meet the demolding work of the plastic box formed inside the lower mold, avoiding the low efficiency and product damage in the manual demolding process, and improving the demolding efficiency of the plastic box after molding.

[0023] 2. In this utility model, the setting of the glue injection turntable, fixing groove, fixing rod, connecting plate, plug rod and positioning spring allows the lower mold to be disassembled and replaced so that plastic boxes of different sizes can be glued. This avoids the inconvenience caused by the relatively uniform size of the glue injection plastic boxes, and helps to meet the glue injection needs of plastic boxes of different sizes. Attached Figure Description

[0024] Figure 1 This is a three-dimensional structural diagram of the working base of a plastic mold that can be automatically demolded, as proposed in this utility model.

[0025] Figure 2 This is a cross-sectional view of the working base, injection turntable, and lower mold of a plastic mold that can be automatically demolded according to this utility model.

[0026] Figure 3 This is an exploded view of the injection turntable, fixing groove, lower mold and demolding mechanism of a plastic mold with automatic demolding proposed in this utility model.

[0027] Figure 4 This utility model proposes an automatic demolding plastic mold. Figure 3 Enlarged schematic diagram of the internal structure of part A in the middle.

[0028] Legend:

[0029] 1. Working base; 2. Servo motor; 3. Glue injection turntable; 4. Lower mold; 5. Demolding mechanism; 51. Demolding plate; 52. Protrusion; 53. Return spring; 6. Push rod; 7. Disassembly assembly; 71. Fixing rod; 72. Connecting plate; 73. Insertion rod; 74. Positioning spring; 8. Connecting frame; 9. Electric telescopic rod; 10. Upper mold; 11. Connecting frame; 12. Fixing groove. Detailed Implementation

[0030] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0031] Reference Figures 1-3 The present invention provides an embodiment of an automatically demolding plastic mold, comprising a working base 1, a servo motor 2 fixedly connected to the top of the working base 1, and an injection turntable 3 fixedly connected to the output end of the servo motor 2. The servo motor 2 drives the injection turntable 3 to rotate. The injection turntable 3 has a fixing groove 12 inside, and a lower mold 4 is inserted into the fixing groove 12. The fixing groove 12 is used to place the lower mold 4 and improve the stability of the lower mold 4 during the placement process. Connecting frames 11 are fixedly connected to both sides of the lower mold 4.

[0032] Furthermore, a connecting frame 8 is fixedly connected to the side wall of the working base 1, an electric telescopic rod 9 is fixedly connected to the bottom of the connecting frame 8, and an upper mold 10 is fixedly connected to the bottom of the electric telescopic rod 9. The upper mold 10 is driven to descend by the operation of the electric telescopic rod 9. The upper mold 10 is used to shape the material inside the lower mold 4 during the descent process. A push rod 6 is fixedly connected to the top of the working base 1, a demolding mechanism 5 is provided at the bottom of the lower mold 4, and a disassembly component 7 is provided at the top of the glue injection turntable 3.

[0033] Reference Figures 2-3 The demolding mechanism 5 includes a demolding template 51, which is slidably connected to the inner bottom of the lower mold 4. During the sliding process, the demolding template 51 pushes the mold inside the lower mold 4 after it has been formed, so as to demold the mold from the inside of the lower mold 4. The bottom of the lower mold 4 is provided with a limiting sliding hole. The size of the demolding template 51 is adapted to the size of the limiting sliding hole. The matching size of the demolding template 51 and the limiting sliding hole improves the sealing of the lower mold 4 during use and avoids material leakage. The bottom of the demolding template 51 is fixedly connected with a protrusion 52.

[0034] Furthermore, the sidewall of the ejector plate 51 is elastically connected to the lower mold 4 via a return spring 53. When the protrusion 52 is pushed, it causes the ejector plate 51 to squeeze the return spring 53, causing the return spring 53 to deform. During reset, the rebound of the return spring 53 causes the ejector plate 51 to slide and reset. The sidewall of the protrusion 52 is inclined, and the two sides of the push rod 6 are arc-shaped. The top of the push rod 6 contacts the bottom of the protrusion 52. During the rotation of the glue injection turntable 3, the protrusion 52 is rotated. The push rod 6 pushes and squeezes the protrusion 52 during the rotation. The fixed groove 12 has a through hole. The protrusion 52 extends through the through hole to the outside of the glue injection turntable 3. The through hole allows the protrusion 52 to extend to the outer surface of the glue injection turntable 3, so that the protrusion 52 contacts the push rod 6.

[0035] Reference Figures 3-4 The disassembly assembly 7 includes a connecting plate 72. The bottom of the connecting plate 72 is fixedly connected to the top of the glue injection turntable 3. The side wall of the connecting plate 72 is elastically connected to the insertion rod 73 through the positioning spring 74. Pulling the insertion rod 73 compresses the positioning spring 74, causing the positioning spring 74 to deform. When resetting, the rebound of the positioning spring 74 drives the insertion rod 73 to slide and reset. The insertion rod 73 is slidably connected inside the connecting plate 72. Pulling the insertion rod 73 causes the insertion rod 73 to slide inside the connecting plate 72.

[0036] Furthermore, a fixing rod 71 is fixedly connected to the top of the fixing groove 12. The side wall of the fixing rod 71 is provided with an insertion groove. The insertion rod 73 passes through the connecting plate 72 and extends into the insertion groove. The insertion groove allows the insertion rod 73 to slide and pass through the interior of the fixing rod 71, improving the placement of the lower mold 4 inside the fixing groove 12. The connecting frame 11 is provided with a connecting hole. The size of the fixing rod 71 matches the size of the connecting hole. The connecting hole allows the connecting frame 11 to be inserted into the outer surface of the fixing rod 71, improving the stable connection between the lower mold 4 and the fixing groove 12.

[0037] Working principle: During use, the lower mold 4 of different sizes is adjusted according to the plastic box to be glued. During adjustment, the plug rod 73 is pulled and the positioning spring 74 is squeezed and pulled out from the inside of the fixed rod 71. Then the connecting frame 11 is pulled out from the inside of the fixed groove 12. The lower mold 4 of the appropriate size is placed in the fixed groove 12 and inserted into the inside of the fixed rod 71 through the connecting frame 11. Then the pull of the plug rod 73 is released. The rebound of the positioning spring 74 drives the plug rod 73 to be inserted into the inside of the fixed rod 71, which satisfies the stable connection between the lower mold 4 and the glue injection turntable 3. Then the item to be glued is placed inside the lower mold 4. The rotation of the servo motor 2 drives the glue injection turntable 3 to rotate to the bottom of the upper mold 10. The operation of the electric telescopic rod 9 drives the upper mold 10 to press down and shape the item inside the lower mold 4.

[0038] Meanwhile, after the mold is shaped and cooled, the servo motor 2 drives the glue injection turntable 3 to rotate, and pushes the protrusion 52 through the push rod 6. After being pushed, the protrusion 52 squeezes the demolding template 51 and then squeezes the reset spring 53 to slide inside the lower mold 4. During the sliding process, the demolding template 51 pushes the mold formed inside the lower mold 4, which satisfies the demolding effect of the mold after forming and improves the demolding efficiency.

[0039] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A plastic mold capable of automatic demolding, comprising a working base (1), characterized in that: A servo motor (2) is fixedly connected to the top of the working base (1). A glue injection turntable (3) is fixedly connected to the output end of the servo motor (2). A fixing groove (12) is opened inside the glue injection turntable (3). A lower mold (4) is inserted into the fixing groove (12). A connecting frame (11) is fixedly connected to both sides of the lower mold (4). A demolding mechanism (5) is provided at the bottom of the lower mold (4). A disassembly component (7) is provided at the top of the glue injection turntable (3). A connecting frame (8) is fixedly connected to the side wall of the working base (1). An electric telescopic rod (9) is fixedly connected to the bottom of the connecting frame (8). An upper mold (10) is fixedly connected to the bottom of the electric telescopic rod (9). A push rod (6) is fixedly connected to the top of the working base (1). The demolding mechanism (5) includes a demolding template (51), which is slidably connected to the inner bottom of the lower mold (4). The side wall of the demolding template (51) is elastically connected to the lower mold (4) through a reset spring (53). A protrusion (52) is fixedly connected to the bottom of the demolding template (51).

2. The automatically demolding plastic mold according to claim 1, characterized in that: The disassembly assembly (7) includes a connecting plate (72), the bottom of which is fixedly connected to the top of the glue injection turntable (3), and the side wall of the connecting plate (72) is elastically connected to a plug rod (73) by a positioning spring (74). The top of the fixing groove (12) is fixedly connected to a fixing rod (71).

3. The automatically demolding plastic mold according to claim 1, characterized in that: The bottom of the lower mold (4) is provided with a limiting sliding hole, and the size of the ejector plate (51) is adapted to the size of the limiting sliding hole.

4. The automatically demolding plastic mold according to claim 1, characterized in that: The fixing groove (12) has a through hole inside, and the protrusion (52) extends through the through hole to the outside of the glue injection turntable (3).

5. The automatically demolding plastic mold according to claim 1, characterized in that: The sidewall of the protrusion (52) is inclined, the two sides of the push rod (6) are arc-shaped, and the top of the push rod (6) is in contact with the bottom of the protrusion (52).

6. The automatically demolding plastic mold according to claim 2, characterized in that: The connecting frame (11) has a connecting hole inside, and the size of the fixing rod (71) is adapted to the size of the connecting hole.

7. A plastic mold capable of automatic demolding according to claim 2, characterized in that: The plug rod (73) is slidably connected inside the connecting plate (72).

8. A plastic mold capable of automatic demolding according to claim 2, characterized in that: The side wall of the fixing rod (71) is provided with a plug groove, and the plug rod (73) passes through the connecting plate (72) and extends into the plug groove.

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