A plastic mold core pulling mechanism

Abstract

The utility model discloses a plastic mold core pulling mechanism, and relates to the technical field of plastic mold core pulling. The utility model includes a mold, wherein a fixed plate 1 is fixedly connected to the right side of the mold, a groove 1 is provided on the top of the mold, a fixed block 1 is fixedly connected to the inner wall of the groove 1, two fixed blocks 1 are provided, and a groove 2 is provided on the left side of the groove 1. Specifically, the motor is turned on to drive the rotating shaft to rotate, so that the connecting block moves out of the mold during the rotation so that the mold core is not fixed, and the electric push rod 2 is turned on to drive the telescopic rod 2 to contract so that the mold core can be pulled out of the product. In this process, the fixed block 2 will move in the inner wall of the slide groove provided at the bottom of the fixed plate 3. Even if the electric push rod 2 is not installed in parallel, it will not affect the movement of the fixed plate 3, so that the device will not cause a large displacement of the mold core inside the product during the process of core pulling of the product, thereby avoiding damage to the product due to core pulling and improving the qualified rate of the product.

Description

Technical Field

[0001] The utility model belongs to the technical field of plastic mold core pulling, in particular to a plastic mold core pulling mechanism. Background Art

[0002] Plastic molds are tools used in the plastic processing industry to match plastic molding machines and give plastic products complete configurations and precise dimensions. Due to the wide variety of plastics and processing methods, and the varying structures of plastic molding machines and plastic products, there are also many types and structures of plastic molds.

[0003] When the existing plastic mold core pulling device pulls the core of the product, the mold core will be driven by the oil cylinder to move so that the mold core can be pulled out of the product. When the oil cylinder or the electric push rod is not installed in parallel, the mold core will be driven to move and the mold core will be offset during the movement, causing damage to the inner wall of the product, causing a small deformation of the inner wall of the product, and reducing the product's qualification rate. Utility Model Content

[0004] The purpose of the utility model is to provide a plastic mold core pulling mechanism. Through the core pulling assembly, the mold core will not be affected by the non-parallel installation of the electric push rod during the movement. This solves the problem that when the existing oil cylinder or electric push rod is not installed in parallel, the mold core will be driven to move, which will cause the mold core to deviate during the movement and cause damage to the inner wall of the product, resulting in a smaller deformation of the inner wall of the product, thereby reducing the qualified rate of the product.

[0005] In order to solve the above technical problems, the utility model is realized by the following technical solutions:

[0006] The utility model discloses a core pulling mechanism for a plastic mold, comprising a mold, wherein a fixed plate 1 is fixedly connected to the right side of the mold, a groove 1 is provided on the top of the mold, a fixed block 1 is fixedly connected to the inner wall of the groove 1, two fixed blocks 1 are provided, a groove 2 is provided on the left side of the groove 1, a core pulling assembly is provided on the front side of the mold, a demoulding assembly is provided on the back side of the mold, the core pulling assembly comprises a hollow frame, two hollow frames are provided, the back sides of the two hollow frames are fixedly connected to the front side of the fixed plate 1, round rods are fixedly connected to the inner walls of the two hollow frames, a moving frame is slidably connected to the outer surfaces of the two round rods, a motor is fixedly connected to the front side of the moving frame, a rotating shaft is fixedly connected to the left output end of the motor, a thread is provided on the outer surface of the rotating shaft, the outer surface of the rotating shaft is threadedly connected to the inner wall of the fixed block 1 on the left side, and the outer surface of the rotating shaft is slidably connected to the inner wall of the fixed block 1 on the right side, and the core pulling assembly is provided so that the device will not cause a large displacement of the mold core inside the product during the process of core pulling of the product, thereby avoiding damage to the product due to core pulling and improving the qualified rate of the product.

[0007] Furthermore, a circular plate is fixedly connected to the left side of the rotating shaft, a connecting block is fixedly connected to the left side of the circular plate, a thread is provided on the outer surface of the connecting block, a mold core is threadedly connected to the outer surface of the connecting block, a fixing plate three is fixedly connected to the bottom of the mold core, the bottom of the fixing plate three is slidingly connected to the inner wall of the groove two, a groove three is provided on the right side of the bottom of the groove two, a sliding groove is provided at the bottom of the fixing plate three, and by providing the connecting block, the mold core will not shake when the device is in use.

[0008] Furthermore, an electric push rod 2 is fixedly connected to the inner wall of the groove 3, a telescopic rod 2 is fixedly connected to the output end of the electric push rod 2 close to the fixed plate 3, and a fixed block 3 is fixedly connected to the side of the telescopic rod 2 away from the electric push rod 2. By setting the electric push rod, the efficiency of the core pulling of the device is improved.

[0009] Furthermore, the inner surface of the fixed block three is rotatably connected to a rotating rod, the top of the rotating rod is rotatably connected to the fixed block two, and the top of the fixed block two is slidably connected to the inner wall of the slide groove. By setting the rotating rod, the fixed plate can move quickly in the inner wall of the groove two without being affected by the non-parallel installation of the electric push rod.

[0010] Furthermore, the demoulding assembly includes four fixing rods, and a square groove one is opened on the back of the mold. The inner wall of the square groove one is fixedly connected to the tops of the four fixing rods. By setting up the demoulding assembly, the product is separated from the groove two, so that workers do not have to remove the product personally, thereby improving the working efficiency of the device.

[0011] Furthermore, a fixing plate 2 is fixedly connected to the back of the fixing rod, an electric push rod 1 is fixedly connected to the back of the fixing plate 2, a telescopic rod 1 is fixedly connected to the front output end of the electric push rod 1, a movable plate is fixedly connected to the front of the telescopic rod 1, and circular grooves are provided at the four corners of the movable plate. By setting the fixing plate 2, the electric push rod can stably push the movable plate.

[0012] Furthermore, the inner wall of the circular groove is slidably connected to the outer surface of the fixed rod, and a plurality of push rods are fixedly connected to the top of the movable plate. The top of the push rod passes through the mold and fits with the inner wall of the second groove. By setting the push rod, the product can be quickly and conveniently pushed out of the inner wall of the second groove.

[0013] The utility model has the following beneficial effects:

[0014] 1. The utility model sets a core pulling component, specifically, turns on the motor to drive the rotating shaft to rotate, so that the connecting block moves out of the mold during rotation so that the mold core is not fixed, turns on the electric push rod 2 to drive the telescopic rod 2 to contract, so that the mold core can be pulled out of the product. In this process, the fixed block 2 will move in the inner wall of the slide groove opened at the bottom of the fixed plate 3. Even if the electric push rod 2 is not installed in parallel, it will not affect the movement of the fixed plate 3, so that the device will not cause a large displacement of the mold core inside the product during the process of core pulling of the product, thereby avoiding damage to the product due to core pulling and improving the product qualification rate.

[0015] 2. The utility model sets a demoulding component. Specifically, when the device completes core pulling, an electric push rod is turned on to drive a telescopic rod to extend upward, so that a plurality of push rods can extend from the bottom of the inner wall of the second groove, and the solidified product is pushed upward to separate the product from the second groove, so that workers do not have to remove the product personally, thereby improving the working efficiency of the device.

[0016] Of course, any product implementing this utility model does not necessarily need to achieve all of the advantages described above at the same time. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the technical solution of the embodiment of the utility model, the drawings required for describing the embodiment will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0018] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0019] Figure 2 For this utility model Figure 1 A is a schematic diagram of the enlarged structure of the middle part;

[0020] Figure 3 This is a schematic diagram of the overall structure of the fixed plate of the utility model;

[0021] Figure 4 This is a schematic diagram of the overall structure of the hollow frame of the utility model;

[0022] Figure 5 It is a schematic diagram of the left side cross-sectional structure of the utility model mold.

[0023] In the accompanying drawings, the components represented by the reference numerals are listed as follows:

[0024] 1. Mold; 2. Fixed plate 1; 3. Fixed block 1; 4. Mold core; 11. Core pulling assembly; 111. Hollow frame; 112. Round rod; 113. Mobile frame; 114. Motor; 115. Rotating shaft; 116. Round plate; 117. Connecting block; 22. Demolding assembly; 221. Fixed rod; 222. Fixed plate 2; 223. Electric push rod 1; 224. Telescopic rod 1; 225. Mobile plate; 226. Push rod; 31. Fixed plate 3; 32. Fixed block 2; 33. Rotating rod; 34. Fixed block 3; 35. Telescopic rod 2; 36. Electric push rod 2. DETAILED DESCRIPTION

[0025] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of them. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0026] See also Figure 1-5 As shown, the utility model is a plastic mold core pulling mechanism, comprising a mold 1, a fixed plate 2 is fixedly connected to the right side of the mold 1, a groove 1 is provided on the top of the mold 1, a fixed block 3 is fixedly connected to the inner wall of the groove 1, two fixed blocks 3 are provided, a groove 2 is provided on the left side of the groove 1, a core pulling component 11 is provided on the front side of the mold 1, a demoulding component 22 is provided on the back side of the mold 1, the core pulling component 11 comprises a hollow frame 111, two hollow frames 111 are provided, the back sides of the two hollow frames 111 are fixedly connected to the front side of the fixed plate 2, round rods 112 are fixedly connected to the inner walls of the two hollow frames 111, a moving frame 113 is slidably connected to the outer surfaces of the two round rods 112, a motor 114 is fixedly connected to the front side of the moving frame 113, a rotating shaft 115 is fixedly connected to the output end of the left side of the motor 114, a thread is provided on the outer surface of the rotating shaft 115, the outer surface of the rotating shaft 115 is threadedly connected to the inner wall of the fixed block 3 on the left side, and the outer surface of the rotating shaft 115 is slidably connected to the inner wall of the fixed block 3 on the right side.

[0027] A circular plate 116 is fixedly connected to the left side of the rotating shaft 115, and a connecting block 117 is fixedly connected to the left side of the circular plate 116. A thread is provided on the outer surface of the connecting block 117, and a mold core 4 is threadedly connected to the outer surface of the connecting block 117. A fixed plate three 31 is fixedly connected to the bottom of the mold core 4, and the bottom of the fixed plate three 31 is slidably connected to the inner wall of the groove two, a groove three is provided on the right side of the bottom of the groove two, and a sliding groove is provided at the bottom of the fixed plate three 31.

[0028] An electric push rod 2 36 is fixedly connected to the inner wall of the groove 3, a telescopic rod 2 35 is fixedly connected to the output end of the electric push rod 2 36 close to the fixed plate 3 31 , and a fixed block 34 is fixedly connected to the side of the telescopic rod 2 35 away from the electric push rod 2 36 .

[0029] The inner surface of the fixed block three 34 is rotatably connected to a rotating rod 33, and the top of the rotating rod 33 is rotatably connected to a fixed block two 32. The top of the fixed block two 32 is slidably connected to the inner wall of the slide groove. By setting the core pulling component 11, specifically, turning on the motor 114 to drive the rotating shaft 115 to rotate, so that the connecting block 117 moves out of the mold 1 during rotation so that the mold core 4 is not fixed, turning on the electric push rod two 36 to drive the telescopic rod two 35 to contract, so that the mold core 4 can be pulled out of the product. In this process, the fixed block two 32 will move in the inner wall of the slide groove opened at the bottom of the fixed plate three 31. Even if the electric push rod two 36 is not installed in parallel, it will not affect the movement of the fixed plate three 31, so that the device will not cause a large displacement of the mold core 4 inside the product during the process of core pulling of the product, thereby avoiding damage to the product due to core pulling and improving the qualified rate of the product.

[0030] The demoulding assembly 22 includes four fixing rods 221 . A square groove 1 is formed on the back of the mold 1 . The inner wall of the square groove 1 is fixedly connected to the tops of the four fixing rods 221 .

[0031] The back of the four fixing rods 221 is fixedly connected to a fixing plate 222 , the back of the fixing plate 222 is fixedly connected to an electric push rod 1 223 , and the front output end of the electric push rod 1 223 is fixedly connected to a telescopic rod 1 224 .

[0032] A moving plate 225 is fixedly connected to the front of the telescopic rod 1 224 , and circular grooves are formed at the four corners of the moving plate 225 .

[0033] The inner wall of the circular groove is slidably connected to the outer surface of the fixed rod 221, and a plurality of push rods 226 are fixedly connected to the top of the movable plate 225. The top of the push rod 226 penetrates the mold 1 and fits with the inner wall of the groove 2. By setting the demolding component 22, specifically, when the device completes the core pulling, the electric push rod 1 223 is turned on to drive the telescopic rod 1 224 to extend upward, so that the plurality of push rods 226 can extend from the bottom of the inner wall of the groove 2, and the solidified product is pushed upward to separate the product from the groove 2, so that the workers do not have to remove the product personally, thereby improving the working efficiency of the device.

[0034] A specific application of this embodiment is: when the product solidifies, the motor 114 is turned on to drive the rotating shaft 115 to rotate. When the rotating shaft 115 rotates, it will drive the circular plate 116 to rotate in the inner wall of the groove 2 opened on the top of the mold 1. When the circular plate 116 rotates, it will drive the connecting block 117 to rotate in the inner wall of the mold core 4. Since the rotating shaft 115 is threadedly connected to the fixed block 1 3, the rotating shaft 115 will move to the right side when it rotates, driving the connecting block 117 to move out of the mold 1 during rotation. When the rotating shaft 115 moves to the right side, it will push the movable frame 113 to move to the right side on the outer surface of the round rod 112, so that the rotating shaft 115 can move the connecting block 117 out of the mold core 4 during the rotation, so that the mold core 4 is not fixed, and the electric push rod 2 36 is turned on to drive the telescopic rod 2 35 to retract. During the contraction of the telescopic rod 2 35, the fixed block 34 will be driven to move to the position of the electric push rod 2 36, and the fixed block 34 will be driven to rotate during the movement of the rotating rod 33 The mold core 4 can be pulled out of the product by the mold core 4 being pulled out of the product.

[0035] In the description of this specification, the description with reference to the terms "one embodiment", "example", "specific example", etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the utility model. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0036] The preferred embodiments of the utility model disclosed above are only used to help explain the utility model. The preferred embodiments do not describe all the details in detail, nor do they limit the utility model to the specific implementation methods described. Obviously, many modifications and changes can be made according to the content of this specification. This specification selects and specifically describes these embodiments in order to better explain the principles and practical applications of the utility model, so that technicians in the relevant technical field can well understand and use the utility model. The utility model is limited only by the claims and their full scope and equivalents.

Claims

1. A plastic mold core pulling mechanism, comprising a mold (1), wherein a fixing plate (2) is fixedly connected to the right side of the mold (1), a groove (1) is formed on the top of the mold (1), and a fixing block (3) is fixedly connected to the inner wall of the groove (1), characterized in that: The number of the fixing blocks (3) is two, a groove (2) is provided on the left side of the groove (1), a core pulling assembly (11) is provided on the front side of the mold (1), and a demoulding assembly (22) is provided on the back side of the mold (1); The core pulling assembly (11) comprises a hollow frame (111), wherein the number of the hollow frames (111) is two, the back surfaces of the two hollow frames (111) are fixedly connected to the front surface of the fixed plate (2), the inner walls of the two hollow frames (111) are fixedly connected to round rods (112), the outer surfaces of the two round rods (112) are slidably connected to a moving frame (113), the front surface of the moving frame (113) is fixedly connected to a motor (114), the left output end of the motor (114) is fixedly connected to a rotating shaft (115), the outer surface of the rotating shaft (115) is provided with threads, the outer surface of the rotating shaft (115) is threadedly connected to the inner wall of the fixed block (3) located on the left, and the outer surface of the rotating shaft (115) is slidably connected to the inner wall of the fixed block (3) located on the right.

2. A plastic mold core pulling mechanism according to claim 1, characterized in that: A circular plate (116) is fixedly connected to the left side of the rotating shaft (115), a connecting block (117) is fixedly connected to the left side of the circular plate (116), a thread is provided on the outer surface of the connecting block (117), a mold core (4) is threadedly connected to the outer surface of the connecting block (117), a fixing plate three (31) is fixedly connected to the bottom of the mold core (4), the bottom of the fixing plate three (31) is slidably connected to the inner wall of the groove two, a groove three is provided on the right side of the bottom of the groove two, and a sliding groove is provided at the bottom of the fixing plate three (31).

3. A plastic mold core pulling mechanism according to claim 2, characterized in that: The inner wall of the groove three is fixedly connected with an electric push rod two (36), the output end of the electric push rod two (36) close to the fixed plate three (31) is fixedly connected with a telescopic rod two (35), and the side of the telescopic rod two (35) away from the electric push rod two (36) is fixedly connected with a fixed block three (34).

4. A plastic mold core pulling mechanism according to claim 3, characterized in that: The inner surface of the fixed block three (34) is rotatably connected to a rotating rod (33), the top of the rotating rod (33) is rotatably connected to the fixed block two (32), and the top of the fixed block two (32) is slidably connected to the inner wall of the sliding groove.

5. A plastic mold core pulling mechanism according to claim 1, characterized in that: The demoulding assembly (22) comprises four fixing rods (221), and a square groove one is provided on the back of the mold (1), and the inner wall of the square groove one is fixedly connected to the tops of the four fixing rods (221).

6. A plastic mold core pulling mechanism according to claim 5, characterized in that: The backs of the four fixing rods (221) are fixedly connected to a fixing plate 2 (222), the backs of the fixing plate 2 (222) are fixedly connected to an electric push rod 1 (223), and the front output end of the electric push rod 1 (223) is fixedly connected to a telescopic rod 1 (224).

7. A plastic mold core pulling mechanism according to claim 6, characterized in that: The front side of the telescopic rod 1 (224) is fixedly connected to a movable plate (225), and four corners of the movable plate (225) are provided with circular grooves.

8. A plastic mold core pulling mechanism according to claim 7, characterized in that: The inner wall of the circular groove is slidably connected to the outer surface of the fixed rod (221); a plurality of push rods (226) are fixedly connected to the top of the movable plate (225); the tops of the push rods (226) penetrate the mold (1) and fit against the inner wall of the second groove.

Images