Die with gear-driven accelerated ejection structure

Abstract

The utility model discloses a mould with a gear-driven accelerated ejection structure, which comprises a lower mould component, a bottom plate and a top plate movably arranged between the lower mould component and the bottom plate, a plurality of first ejection components and second ejection components are arranged on the top plate, one end of each first ejection component is fixedly arranged on the top plate, and the other end of each first ejection component is fixedly arranged on the bottom plate. And a gear transmission structure is arranged between the second ejection assembly and the top plate, and after the top plate is lifted to a preset position relative to the lower die assembly, the gear transmission structure drives the second ejection assembly to be upwards ejected in an accelerated mode relative to the first ejection assembly. The device has the effects that secondary ejection can be carried out on the atmosphere light bar shell, and the success rate of clamping and separating the atmosphere light bar shell from the mold by the manipulator is greatly improved.

Description

Technical Field

[0001] The utility model relates to the technical field of injection molds, in particular to a mold with a gear-driven accelerated ejection structure. Background Art

[0002] like Figure 1 As shown, an injection-molded ambient light bar shell 7 is provided with steps 71 on both sides of the ambient light bar shell along the length direction. After the ambient light bar shell 7 is injection-molded, in order to make the ambient light bar shell 7 better demoulding, the factory usually adopts a method of setting a straight top block, wherein the straight top block participates in the molding of the ambient light bar shell step 71. After the molding is completed, the straight top block is used to push up again, thereby vertically ejecting the ambient light bar shell 7 from the lower mold assembly, and then the ambient light bar shell 7 is clamped by a robot to take out the part. However, since the ambient light bar shell 7 is long, in order to make the ambient light bar The shell 7 can be smoothly removed from the lower mold assembly as a whole. Usually, multiple straight top blocks are set on both sides of the atmosphere light bar shell 7 along the length direction. For this reason, a problem arises, that is, although the atmosphere light bar shell 7 can be smoothly separated from the lower mold assembly, since the straight top blocks are directly involved in the forming of the step 71, a large number of straight top blocks will cause the clamping force between the two sides of the atmosphere light bar shell 7 and the straight top blocks to be too large, making it difficult for the robot to separate the atmosphere light bar shell 7 from the straight top blocks by clamping, resulting in a high failure rate for the robot to clamp and remove the atmosphere light bar shell 7 from the mold, which urgently needs to be improved. Utility Model Content

[0003] The purpose of the utility model is to provide a mold with a gear-driven accelerated ejection structure, which can perform secondary ejection of the atmosphere light bar shell and greatly improve the success rate of the robot arm in clamping and separating the atmosphere light bar shell from the mold.

[0004] The above technical purpose of the present utility model is achieved through the following technical solutions: a mold with a gear-driven accelerated ejection structure, comprising a lower mold assembly and a top plate, wherein a plurality of first ejection assemblies and a second ejection assemblies are provided on the top plate, one end of the first ejection assembly is fixed to the top plate, and the other end of the first ejection assembly is ejected with the atmosphere light bar shell, and a gear transmission structure is provided between the second ejection assembly and the top plate. When the top plate is lifted to a predetermined position relative to the lower mold assembly, the gear transmission structure drives the second ejection assembly to accelerate upward relative to the first ejection assembly.

[0005] By adopting the above technical solution, the ambient light bar shell is demoulded after injection molding, and the top plate drives the first ejection component and the second ejection component to lift up at the same time. The first ejection component directly lifts the ambient light bar shell from the lower mold component to a predetermined height, so that the ambient light bar shell and the lower mold component are separated from each other. In this process, although the second ejection component does not directly participate in the ejection of the ambient light bar shell, the first ejection component plays an ejection role, so that the second ejection component will be lifted up synchronously with the top plate, thus realizing a one-time ejection process of the ambient light bar; then the top plate continues to lift upward, and the gear transmission structure is used at this time. The structure acts to accelerate the second ejection component to eject upward relative to the first ejection component, so that the second ejection component of the atmosphere light bar shell is ejected upward for a second time, and at the same time, the atmosphere light bar shell and the first ejection component are separated from each other. The utility model uses the secondary ejection method to make the final atmosphere light bar shell only contact with the second ejection component, thereby reducing the adhesion force between the first ejection component and the atmosphere light bar shell, so that the robot can more smoothly separate the atmosphere light bar shell from the second ejection component, which has the effect of being able to perform secondary ejection on the atmosphere light bar shell and greatly improving the success rate of the robot in clamping and separating the atmosphere light bar shell from the mold.

[0006] The utility model is further configured as follows: the gear transmission structure includes a first rack, a second rack and a transmission gear rotatably arranged on the top plate, the two sides of the transmission gear are respectively engaged with the first rack and the second rack, the rotation of the transmission gear can drive the first rack and the slave rack to move up and down relative to each other on the top plate, an ejection gap is left between the first rack and the lower mold assembly, and one end of the second rack is fixedly connected to the second ejection assembly.

[0007] By adopting the above technical solution, during the one-time ejection process of the atmosphere light bar shell, the ejection gap can play the role of an idle stroke, so that the top plate can drive the first ejection assembly and the second ejection assembly to rise synchronously. When the top plate drives the first rack to rise to the height of the ejection gap, the lower end of the lower mold assembly is tightly fitted with the first rack. At this time, the top plate continues to lift up, driving the first rack to move downward relative to the top plate, and driving the second rack to accelerate upward relative to the top plate through the transmission gear, thereby pushing the second ejection assembly to accelerate away from the top plate, thereby realizing the secondary ejection process of the atmosphere light bar shell.

[0008] The present invention is further configured as follows: the lower die assembly includes a lower die core and a pressing block fixed to the bottom of the lower die core, and the pressing block cooperates with the first rack stopper.

[0009] By adopting the above technical solution, when the top plate drives the first rack to rise to the height of the ejection gap, the pressure block can be used to resist the first rack to prevent the first rack from rising synchronously with the top plate.

[0010] The present invention is further configured as follows: a mounting hole is provided on the top plate, a mounting frame is provided in the mounting hole, the first rack and the second rack are slidably passed through the mounting frame, and the transmission gear is rotatably provided in the mounting frame.

[0011] The present invention is further configured as follows: a fixing plate is fixedly provided on the top plate, and the fixing plate is used to fix the mounting frame to the top plate.

[0012] By adopting the above technical solution, the addition of the fixing plate enables the mounting frame to be detachably mounted on the top plate, thereby facilitating the subsequent disassembly or replacement of the mounting frame.

[0013] The present invention is further configured as follows: an anti-slip portion is provided at one end of the first rack away from the lower die assembly, and the first rack is anti-slippedly engaged with the mounting frame through the anti-slip portion.

[0014] By adopting the above technical solution, the addition of the anti-slip portion can effectively prevent the first rack from detaching from the mounting frame.

[0015] The present invention is further configured as follows: the mounting frame is provided with a connected rotating chamber, a first through hole and a second through hole; the first rack is slidably arranged in the first through hole; the second rack is slidably arranged in the second through hole; and the transmission gear is rotatably installed in the rotating chamber.

[0016] The present invention is further configured as follows: a plurality of the first ejection components and the second ejection components are symmetrically distributed at both ends of the ambient light bar housing.

[0017] By adopting the above technical solution, the symmetrically distributed first ejection component and the second ejection component can make the ejection force of the first ejection component and the second ejection component on the ambient light bar shell more uniform, which can effectively prevent the ambient light bar shell from being damaged due to uneven force during the ejection process.

[0018] The present invention is further configured as follows: the first ejection assembly and the second ejection assembly both include an ejection block and an ejector rod, one end of the ejector rod is fixedly connected to the ejection block, and the other end of the ejector rod is fixedly connected to the corresponding ejector plate or the second rack.

[0019] By adopting the above technical solution, the ejector block of the first ejector assembly is fixedly connected to the ejector plate through the corresponding ejector rod, and the ejector block of the second ejector assembly is fixedly connected to the upper end of the second rack through the corresponding ejector rod.

[0020] The present invention is further configured as follows: the lower die assembly is provided with a through hole corresponding to the ejector rod; the lower die assembly is provided with a guide sleeve in the through hole; the ejector rod is guided and matched with the guide sleeve.

[0021] By adopting the above technical solution, the addition of the guide sleeve improves the concentricity of the lifting movement of the ejector rod relative to the lower mold assembly, which is conducive to the smooth ejection and separation of the ambient light strip shell.

[0022] In summary, the present invention has the following beneficial effects:

[0023] A top plate is provided below the lower die assembly, and a first ejection assembly and a second ejection assembly are provided on the top plate, wherein the first ejection assembly and the second ejection assembly both include ejector rods and ejection blocks, a gear transmission structure is provided between the second ejection assembly and the top plate, the gear transmission structure includes a first rack, a second rack and a transmission gear, the ejection block of the first ejection assembly is fixedly connected to the top plate through a corresponding ejector rod, and the ejection block of the second ejection assembly is fixedly connected to the upper end of the second rack through a corresponding ejector rod. When the top plate is ejected relative to the lower die assembly once and lifted to the ejection gap height, the top plate is continued to be lifted. At this time, the gear transmission structure is used The second ejection component is driven to accelerate upward relative to the first ejection component to realize the secondary ejection of the atmosphere light bar shell, so that the atmosphere light bar shell and the first ejection component are separated from each other. The utility model uses the secondary ejection method to make the final atmosphere light bar shell only contact with the second ejection component, reducing the adhesion force between the first ejection component and the atmosphere light bar shell, so that the robot can more smoothly separate the atmosphere light bar shell from the second ejection component, which has the effect of being able to perform secondary ejection on the atmosphere light bar shell and greatly improving the success rate of the robot in clamping and separating the atmosphere light bar shell from the mold. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 It is a cross-sectional view of an ambient light bar housing in the prior art.

[0025] Figure 2 It is an overall schematic diagram of the ambient light strip housing of the present invention after being ejected at one time.

[0026] Figure 3 This utility model Figure 2 Longitudinal cross-sectional view.

[0027] Figure 4 This utility model Figure 3 A partial enlarged view of area A in the middle.

[0028] Figure 5 It is another longitudinal sectional view of the present utility model.

[0029] Figure 6 This utility model Figure 5 A partial enlarged view of area B in the middle.

[0030] Figure 7 It is an overall schematic diagram of the ambient light strip housing of the present invention after being ejected for the second time.

[0031] In the figure: 1. Lower mold assembly; 1a. Ejection gap; 1b. Through hole; 10. Guide sleeve; 11. Lower mold core; 12. Pressure block; 2. Bottom plate; 3. Top plate; 3a. Mounting hole; 31. Fixed plate; 4. First ejection assembly; 41. Ejector block; 42. Ejector rod; 5. Second ejection assembly; 6. Mounting frame; 6a. Rotating chamber; 6b. First through hole; 6c. Second through hole; 61. First rack; 611. Anti-slip portion; 62. Transmission gear; 63. Second rack; 7. Atmosphere light bar housing; 71. Step. DETAILED DESCRIPTION

[0032] The present invention will be further described below with reference to the accompanying drawings.

[0033] A mold with a gear-driven accelerated ejection structure, such as Figure 2-3 and Figure 6-7 As shown, it includes a lower mold assembly 1, a base plate 2, and a top plate 3 movably arranged between the lower mold assembly 1 and the base plate 2. A number of first ejection assemblies 4 and second ejection assemblies 5 are provided on the top plate 3. One end of the first ejection assembly 4 is fixed on the top plate 3, and the other end of the first ejection assembly 4 is ejected and cooperated with the atmosphere light bar shell 7. A gear transmission structure is provided between the second ejection assembly 5 and the top plate 3. When the top plate 3 is lifted to a predetermined position relative to the lower mold assembly 1, the gear transmission structure drives the second ejection assembly 5 to accelerate upward relative to the first ejection assembly 4.

[0034] like Figure 4-6As shown, the gear transmission structure includes a first rack 61, a second rack 63 and a transmission gear 62 rotatably arranged on the top plate 3. The two sides of the transmission gear 62 are respectively meshed with the first rack 61 and the second rack 63. The rotation of the transmission gear 62 can drive the first rack 61 and the slave rack to move up and down relative to each other on the top plate 3. An ejection gap 1a is left between the first rack 61 and the lower mold assembly 1. One end of the second rack 63 is fixedly connected to the second ejection assembly 5. During one ejection of the atmosphere light bar housing 7, the ejection gap 1a can play the role of an idle stroke, so that the top plate 3 can drive the first ejection assembly 4 and the second ejection assembly 5 to rise synchronously. When the top plate 3 drives the first rack 61 to rise to the height of the ejection gap 1a, the lower end of the lower mold assembly 1 is tightly fitted with the first rack 61. At this time, the top plate 3 continues to lift, driving the first rack 61 to move downward relative to the top plate 3, and driven by the transmission gear 62 The movable second rack 63 is accelerated upward relative to the top plate 3, thereby pushing the second ejection component 5 to accelerate relatively away from the top plate 3, realizing the secondary ejection process of the atmosphere light bar shell 7; the lower mold assembly 1 includes a lower mold core 11 and a pressure block 12 fixed at the bottom of the lower mold core 11, and the pressure block 12 cooperates with the first rack 61 to stop. When the top plate 3 drives the first rack 61 to rise to the height of the ejection gap 1a, the pressure block 12 can be used to resist the first rack 61 to prevent the first rack 61 from rising synchronously with the lifting of the top plate 3; a number of first ejection components 4 and second ejection components 5 are symmetrically distributed at both ends of the atmosphere light bar shell 7. The symmetrically distributed first ejection components 4 and second ejection components 5 can make the ejection force of the first ejection component 4 and the second ejection component 5 on the atmosphere light bar shell 7 more uniform, and can effectively prevent the atmosphere light bar shell 7 from being damaged due to uneven force during the ejection process.

[0035] like Figure 5-7 As shown, the top plate 3 is provided with a mounting hole 3a, and a mounting frame 6 is provided in the mounting hole 3a. The first rack 61 and the second rack 63 are slidably penetrated on the mounting frame 6, and the transmission gear 62 is rotatably provided in the mounting frame 6; a fixing plate 31 is fixed on the top plate 3, and the fixing plate 31 is used to fix the mounting frame 6 to the top plate 3. The addition of the fixing plate 31 makes the mounting frame 6 detachable and mounted on the top plate 3, which is convenient for the subsequent disassembly or replacement of the mounting frame 6; the first rack 61 is away from the lower mold assembly 1. An anti-slip portion 611 is provided at the end, and the first rack 61 cooperates with the mounting frame 6 through the anti-slip portion 611. The addition of the anti-slip portion 611 can effectively prevent the first rack 61 from detaching from the mounting frame 6; the mounting frame 6 is provided with a connected rotating chamber 6a, a first through hole 6b and a second through hole 6c, the first rack 61 is slidably inserted into the first through hole 6b, the second rack 63 is slidably inserted into the second through hole 6c, and the transmission gear 62 is rotatably installed in the rotating chamber 6a.

[0036] like Figure 3-6As shown, the first ejection assembly 4 and the second ejection assembly 5 both include a ejector block 41 and a ejector rod 42, one end of the ejector rod 42 is fixedly connected to the ejector block 41, and the other end of the ejector rod 42 is fixedly connected to the corresponding ejector plate 3 or the second rack 63, so that the ejector block 41 of the first ejection assembly 4 is fixedly connected to the ejector plate 3 through the corresponding ejector rod 42, and the ejector block 41 of the second ejection assembly 5 is fixedly connected to the upper end of the second rack 63 through the corresponding ejector rod 42; the lower mold assembly 1 is provided with a through hole 1b corresponding to the ejector rod 42, and the lower mold assembly 1 is provided with a guide sleeve 10 in the through hole 1b, and the ejector rod 42 is guided and matched with the guide sleeve 10. The addition of the guide sleeve 10 improves the concentricity of the ejector rod 42 relative to the lower mold assembly 1 in the lifting and lowering movement, which is beneficial to the smooth ejection and separation of the atmosphere light bar shell 7.

[0037] The basic working principle of the present invention is as follows: a top plate 3 is arranged between the lower mold assembly 1 and the bottom plate 2, and a first ejection assembly 4 and a second ejection assembly 5 are arranged on the top plate 3, wherein the first ejection assembly 4 and the second ejection assembly 5 both include a ejector rod 42 and a ejection block 41, and a gear transmission structure is provided between the second ejection assembly 5 and the top plate 3, the gear transmission structure includes a first rack 61, a second rack 63 and a transmission gear 62, the ejection block 41 of the first ejection assembly 4 is fixedly connected to the top plate 3 through the corresponding ejector rod 42, and the ejection block 41 of the second ejection assembly 5 is fixedly connected to the upper end of the second rack 63 through the corresponding ejector rod 42, and the atmosphere light bar shell 7 is demoulded after injection molding, and the top plate 3 drives the first ejection assembly 4 and the second ejection assembly 5 to lift up at the same time, and the first ejection assembly 4 directly lifts the atmosphere light bar shell 7 from the lower mold assembly 1 to a predetermined height, so that the atmosphere light bar shell 7 and the lower mold assembly 1 are separated from each other. Although the second ejection assembly After the first ejection component 4 is lifted up, the second ejection component 5 is lifted up synchronously with the top plate 3, thereby realizing a first ejection process of the atmosphere light bar; then the top plate 3 continues to be lifted upward, and at this time, the gear transmission structure is used to accelerate the second ejection component 5 to eject upward relative to the first ejection component 4, so that the second ejection component 5 of the atmosphere light bar shell 7 is ejected upward for the second time, and at the same time, the atmosphere light bar shell 7 and the first ejection component 4 are separated from each other. The utility model uses the secondary ejection method to make the final atmosphere light bar shell 7 only contact with the second ejection component 5, reducing the adhesion force between the first ejection component 4 and the atmosphere light bar shell 7, so that the manipulator can more smoothly separate the atmosphere light bar shell 7 from the second ejection component 5, which has the effect of being able to perform secondary ejection on the atmosphere light bar shell 7 and greatly improving the success rate of the manipulator in clamping and separating the atmosphere light bar shell 7 from the mold.

[0038] The above description is only a preferred embodiment of the present invention. Therefore, any equivalent changes or modifications made according to the structure, features and principles described in the scope of the present invention patent application are included in the scope of the present invention patent application.

Claims

1. A mold with a gear-driven accelerated ejection structure, characterized in that: The invention comprises a lower mold assembly (1), a bottom plate (2), and a top plate (3) movably arranged between the lower mold assembly (1) and the bottom plate (2); a plurality of first ejection assemblies (4) and a second ejection assemblies (5) are arranged on the top plate (3); one end of the first ejection assembly (4) is fixed on the top plate (3); the other end of the first ejection assembly (4) is ejected in cooperation with the ambient light bar shell; a gear transmission structure is arranged between the second ejection assembly (5) and the top plate (3); when the top plate (3) is lifted to a predetermined position relative to the lower mold assembly (1), the gear transmission structure drives the second ejection assembly (5) to accelerate upward relative to the first ejection assembly (4).

2. The mold with a gear-driven accelerated ejection structure according to claim 1, characterized in that: The gear transmission structure comprises a first rack (61), a second rack (63) and a transmission gear (62) rotatably arranged on the top plate (3); the two sides of the transmission gear (62) are respectively engaged with the first rack (61) and the second rack (63); the rotation of the transmission gear (62) can drive the first rack (61) and the second rack to move up and down relative to each other on the top plate (3); an ejection gap (1a) is left between the first rack (61) and the lower mold assembly (1); and one end of the second rack (63) is fixedly connected to the second ejection assembly (5).

3. The mold with a gear-driven accelerated ejection structure according to claim 2, characterized in that: The lower die assembly (1) comprises a lower die core (11) and a pressing block (12) fixed to the bottom of the lower die core (11); the pressing block (12) is engaged with the first rack (61) as a stop.

4. The mold with a gear-driven accelerated ejection structure according to claim 2, characterized in that: The top plate (3) is provided with a mounting hole (3a), a mounting frame (6) is provided in the mounting hole (3a), the first rack (61) and the second rack (63) are slidably provided on the mounting frame (6), and the transmission gear (62) is rotatably provided in the mounting frame (6).

5. The mold with a gear-driven accelerated ejection structure according to claim 4, characterized in that: A fixing plate (31) is fixedly provided on the top plate (3), and the fixing plate (31) is used to fix the mounting frame (6) to the top plate (3).

6. The mold with a gear-driven accelerated ejection structure according to claim 4, characterized in that: An anti-slip portion (611) is provided at one end of the first rack (61) away from the lower mold assembly (1), and the first rack (61) is anti-slippedly engaged with the mounting frame (6) via the anti-slip portion (611).

7. The mold with a gear-driven accelerated ejection structure according to claim 4, characterized in that: The mounting frame (6) is provided with a rotating chamber (6a), a first through hole (6b) and a second through hole (6c) which are connected to each other; the first rack (61) is slidably arranged in the first through hole (6b); the second rack (63) is slidably arranged in the second through hole (6c); and the transmission gear (62) is rotatably mounted in the rotating chamber (6a).

8. The mold with a gear-driven accelerated ejection structure according to claim 2, characterized in that: A plurality of the first ejection components (4) and the second ejection components (5) are symmetrically distributed at both ends of the ambient light bar housing.

9. The mold with a gear-driven accelerated ejection structure according to claim 2, characterized in that: The first ejection assembly (4) and the second ejection assembly (5) both include an ejection block (41) and an ejection rod (42), one end of the ejection rod (42) is fixedly connected to the ejection block (41), and the other end of the ejection rod (42) is fixedly connected to the corresponding ejection plate (3) or the second rack (63).

10. The mold with a gear-driven accelerated ejection structure according to claim 9, characterized in that: The lower mold assembly (1) is provided with a through hole (1b) corresponding to the ejector rod (42), the lower mold assembly (1) is provided with a guide sleeve (10) in the through hole (1b), and the ejector rod (42) is guided and matched with the guide sleeve (10).

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