Rapid production die for L-shaped support

Abstract

The utility model relates to the field of production and processing, and discloses an L-shaped support rapid production mold which comprises a shell, an air cylinder is fixedly connected to the top end of the shell, an upper mold plate is fixedly connected to the inner wall of the shell, an injection molding mechanism is arranged in the upper mold plate, a shell door is hinged to the front end of the shell, and the injection molding mechanism comprises an air pressure bin. The air pressure bin is arranged on the inner wall of the upper mold plate, an anti-backflow assembly is arranged in the upper mold plate and comprises a partition plate, the outer wall of the partition plate is fixedly connected with the inner wall of the upper mold plate, and the top end of the shell is fixedly connected with an injection molding machine body. According to the injection molding device, through the combined action of the injection molding mechanism and the backflow prevention assembly, only when molten plastic fills all areas below the upper mold plate, the clamping block can move to enable the control block to be fixed, so that it is ensured that the injected molten plastic can fill the interior of the mold, and the integrity of a product is ensured.

Description

Technical Field

[0001] The utility model relates to the field of production and processing, in particular to a quick production die for an L-shaped bracket. Background Art

[0002] The L-shaped bracket rapid production mold is a special tool for producing L-shaped brackets using rapid mold manufacturing technology. Rapid mold manufacturing is a faster, more flexible and more efficient method than traditional mold manufacturing, and is particularly suitable for the production of small batches or diversified products.

[0003] At present, when producing an L-shaped bracket, it is often necessary to inject molten plastic into the L-shaped mold so that the molten plastic solidifies and takes shape in the L-shaped mold to achieve the effect of producing the L-shaped bracket.

[0004] However, when producing L-shaped brackets, due to pressure, the molten plastic above the L-shaped bracket may not be able to fill the entire mold, resulting in defects at the bottom of the produced L-shaped bracket, affecting its use. Therefore, an L-shaped bracket rapid production mold is proposed to solve the above problem. Utility Model Content

[0005] In order to make up for the above shortcomings, the utility model provides an L-shaped bracket rapid production mold, aiming to improve the problem in the prior art that molten plastic is inconvenient to fill the bottom of the mold.

[0006] In order to achieve the above-mentioned purpose, the utility model adopts the following technical scheme: an L-shaped bracket rapid production mold, including a shell, the top of the shell is fixedly connected to a cylinder, the inner wall of the shell is fixedly connected to an upper template, an injection molding mechanism is arranged inside the upper template, and a shell door is hinged at the front end of the shell, the injection molding mechanism includes an air pressure chamber, and the air pressure chamber is opened on the inner wall of the upper template, and an anti-backflow component is arranged inside the upper template, and the anti-backflow component includes a partition, and the outer wall of the partition is fixedly connected to the inner wall of the upper template, the top of the shell is fixedly connected to an injection molding machine body, and the injection port of the injection molding machine body is connected to a hose, and the end of the hose away from the injection molding machine body passes through and is fixedly connected to the top inner wall of the upper template, and the bottom end of the upper template is provided with a material picking component, and the material picking component includes a rotating shaft.

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

[0008] The piston on the inner wall of the bottom end of the air pressure chamber is connected to a control block, the right end of the control block is elastically connected to the inner wall of the air pressure chamber through a spring, the inner wall piston at one end of the air pressure chamber away from the control block is connected to a clamping block, and the inner wall piston of the upper template is connected to a control plate.

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

[0010] A trapezoidal hole is provided inside the control plate, a trapezoidal block is slidably connected to the inner wall of the control plate, the top of the control plate is elastically connected to the inner wall of the top of the upper template through spring 2, a positioning port is provided at the right end of the control plate, and a baffle is connected to the inner wall piston of the upper template.

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

[0012] The inner wall of the upper template is fixedly connected with a fixed tube, the inner wall of the fixed tube is slidably connected with a sliding block, the bottom end of the sliding block is fixedly connected with a trapezoidal plate, the shape of the trapezoidal plate is consistent with the shape of the through hole opened in the middle of the partition, the top of the sliding block is elastically connected to the inner wall of the fixed tube through a spring, and the output end of the cylinder passes through the top of the upper template and is fixedly connected to the top of the trapezoidal block.

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

[0014] The outer wall of the rotating shaft is rotatably connected to the lower left end of the upper template, the outer wall of the rotating shaft is fixedly connected to the lower template, the inner wall of the rotating shaft passes through and is fixedly connected with a control rod, the outer wall of the control rod passes through and is rotatably connected to the front end inner wall of the shell, the end of the control rod away from the upper template passes through and is fixedly connected with a positioning rod, and a positioning hole is opened on the front surface of the shell.

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

[0016] The inner wall of the shell at the lower end of the lower template is slidably connected with a material receiving plate, and the lower end of the material receiving plate is elastically connected to the inner wall of the shell through a spring four.

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

[0018] The upper template is L-shaped, and the inner wall surface of the upper template is smooth. The lower template is a rectangular parallelepiped with a rounded corner at the upper right end.

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

[0020] The cross-section of the card block is a right-angled trapezoid, and the upper and lower spacing of the card block matches the upper and lower spacing of the positioning opening.

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

[0022] 1. In the utility model, through the joint action of the injection molding mechanism and the anti-backflow assembly, the clamping block can be moved to fix the control block only when the molten plastic fills all the areas below the upper template, thereby ensuring that the injected molten plastic can fill the inside of the mold and ensure the integrity of the product.

[0023] 2. In the utility model, by using the material taking component, the material receiving plate and the spring four in coordination, when and only when the product is solidified and the staff performs the demoulding operation, the L-shaped bracket can move downward under the action of gravity and fall on the upper surface of the material receiving plate, so as to achieve the effect of convenient demoulding and not easy to damage the product. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 It is a three-dimensional structural schematic diagram of the overall structure of the utility model;

[0025] Figure 2 It is a schematic cross-sectional view of the three-dimensional structure of the overall structure of the utility model;

[0026] Figure 3 For the utility model Figure 2 A magnified schematic diagram of the three-dimensional structure of part A;

[0027] Figure 4 For the utility model Figure 2 A magnified schematic diagram of the three-dimensional structure of part B;

[0028] Figure 5 For the utility model Figure 2 The enlarged schematic diagram of the three-dimensional structure of the middle C part;

[0029] Figure 6 For the utility model Figure 1 A magnified schematic diagram of the three-dimensional structure of part D in the middle.

[0030] Legend:

[0031] 1. Shell; 2. Cylinder; 3. Upper template; 4. Injection molding mechanism; 5. Shell door; 6. Injection molding machine body; 7. Hose; 8. Material taking assembly; 41. Air pressure chamber; 42. Control block; 43. Spring one; 44. Block; 45. Control board; 46. Trapezoidal hole; 47. Trapezoidal block; 48. Spring two; 49. Positioning port; 410. Baffle; 51. Partition; 52. Fixed tube; 53. Sliding block; 54. Trapezoidal plate; 55. Spring three; 81. Rotating shaft; 82. Lower template; 83. Control rod; 84. Positioning rod; 85. Positioning hole; 9. Material receiving plate; 10. Spring four. DETAILED DESCRIPTION

[0032] 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 the embodiments. 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.

[0033] Reference Figure 1 , Figure 3 and Figure 4 The utility model provides an embodiment: an L-shaped bracket rapid production mold, including a shell 1, the top of the shell 1 is fixedly connected to a cylinder 2, the inner wall of the shell 1 is fixedly connected to an upper template 3, an injection molding mechanism 4 is arranged inside the upper template 3, the front end of the shell 1 is hinged with a shell door 5, the height of the shell door 5 is higher than the height of the upper template 3, the injection molding mechanism 4 includes an air pressure chamber 41, the air pressure chamber 41 is opened on the inner wall of the upper template 3, the bottom inner wall piston of the air pressure chamber 41 is connected to a control block 42, the right end of the control block 42 is elastically connected to the inner wall of the air pressure chamber 41 through a spring 43, one end of the spring 43 is fixedly connected to the right end of the control block 42, and the other end of the spring 43 is fixedly connected to the inner wall of the air pressure chamber 41.

[0034] Reference Figure 2 - Figure 4 The inner wall piston of one end of the air pressure chamber 41 away from the control block 42 is connected with a card block 44, the inner wall piston of the upper template 3 is connected with a control plate 45, a trapezoidal hole 46 is provided inside the control plate 45, and a trapezoidal block 47 is slidably connected to the inner wall of the control plate 45. The top of the control plate 45 is elastically connected to the inner wall of the top of the upper template 3 through a spring 2 48, one end of the spring 2 48 is fixedly connected to the top of the control plate 45, and the other end of the spring 2 48 is fixedly connected to the inner wall of the top of the upper template 3. A positioning port 49 is provided at the right end of the control plate 45, and a cylinder 2 switch is provided on the inner wall of the top of the positioning port 49. The cross-sectional shape of the card block 44 is a right-angled trapezoid, the top length of the card block 44 is longer than the bottom length, and the upper and lower spacing of the card block 44 matches the upper and lower spacing of the positioning port 49. The inner wall piston of the upper template 3 is connected with a baffle 410, and the left end area of ​​the baffle 410 has good airtightness.

[0035] Reference Figure 2 - Figure 4The upper template 3 is provided with an anti-backflow component inside, and the anti-backflow component includes a partition 51, the outer wall of the partition 51 is fixedly connected to the inner wall of the upper template 3, and a heating rod is provided in the inner wall of the upper template 3 in the area above the partition 51. The inner wall of the upper template 3 is fixedly connected with a fixed tube 52, and the shape of the fixed tube 52 is L-shaped. The inner wall of the fixed tube 52 is slidably connected with a sliding block 53, and the bottom end of the sliding block 53 is fixedly connected with a trapezoidal plate 54, and the shape of the trapezoidal plate 54 is consistent with the shape of the through hole opened in the middle of the partition 51, and the top length of the trapezoidal plate 54 is short. In terms of the bottom length, the top of the sliding block 53 is elastically connected to the inner wall of the fixed tube 52 through a spring three 55, one end of the spring three 55 is fixedly connected to the top of the sliding block 53, and the other end of the spring three 55 is fixedly connected to the inner wall of the fixed tube 52. The output end of the cylinder 2 passes through the top of the upper template 3 and is fixedly connected to the top of the trapezoidal block 47. The top of the shell 1 is fixedly connected to the injection molding machine body 6, and the injection port of the injection molding machine body 6 is connected to a hose 7. The end of the hose 7 away from the injection molding machine body 6 passes through and is fixedly connected to the inner wall of the top of the upper template 3.

[0036] Reference Figure 1 , Figure 5 and Figure 6 The bottom end of the upper template 3 is provided with a material taking component 8, which includes a rotating shaft 81. The outer wall of the rotating shaft 81 is rotatably connected to the lower left end of the upper template 3. The outer wall of the rotating shaft 81 is fixedly connected to the lower template 82. The shape of the upper template 3 is L-shaped. The shape setting of the upper template 3 ensures that the output bracket is L-shaped, and the inner wall surface of the upper template 3 is smooth. The smooth surface setting ensures that the finished product is easy to demould. The shape of the lower template 82 is a rectangular parallelepiped with rounded corners at the upper right end. The rounded corner setting ensures that the lower template 82 will not be hindered by the inner wall of the shell 1 during rotation. The inner wall of the rotating shaft 81 penetrates and is fixedly connected A control rod 83 is connected, the outer wall of the control rod 83 passes through and is rotatably connected to the front inner wall of the shell 1, the end of the control rod 83 away from the upper template 3 passes through and is fixedly connected with a positioning rod 84, a positioning hole 85 is opened on the front surface of the shell 1, the distance between the positioning hole 85 and the rotating shaft 81 is consistent with the distance between the positioning rod 84 and the rotating shaft 81, the inner wall of the shell 1 at the lower end of the lower template 82 is slidably connected with a receiving plate 9, the lower end of the receiving plate 9 is elastically connected to the inner wall of the shell 1 by a spring four 10, one end of the spring four 10 is fixedly connected to the lower end of the receiving plate 9, and the other end of the spring four 10 is fixedly connected to the inner wall of the shell 1.

[0037] Working principle: When in use, the staff first starts the equipment, so that the molten plastic solution flows into the upper template 3 by gravity, while the cylinder 2 drives the trapezoidal block 47 to move up and down. During the downward movement of the trapezoidal block 47, the trapezoidal block 47 moves to contact the inner wall of the control board 45, and then drives the control board 45 to move downward together. At this time, the trapezoidal block 47 fits the inner wall of the control board 45, so the molten plastic under the control board 45 can push the trapezoidal plate 54 to move downward under the action of the extrusion force.

[0038] When the trapezoidal plate 54 moves downward, the molten plastic can flow into the area below the partition 51 through the gap between the trapezoidal plate 54 and the partition 51. When the molten plastic flows in less, the baffle 410 cannot move to the right due to the elasticity of the spring 1 43. When and only when the left side of the baffle 410 is filled with molten plastic, the molten plastic pushes the baffle 410 to the right under the action of the upper driving force, so that the baffle 410 moves to the right and pushes the control block 42 to move to the right, thereby increasing the internal pressure of the air pressure chamber 41, so that the card block 44 moves to the left under the action of the air pressure.

[0039] When the trapezoidal block 47 moves downward to the set lowest end, the trapezoidal block 47 moves upward driven by the cylinder 2. Since the spring 2 48 is in a stretched state at this time, the spring 2 48 will give the control board 45 an upward force. Therefore, the trapezoidal block 47 moves upward together with the control board 45 first. When the control board 45 moves to the point where the spring 2 48 is not subject to force, the trapezoidal block 47 moves upward alone, thereby creating a gap between the trapezoidal block 47 and the control board 45.

[0040] Thereby, the molten plastic can fall under the control plate 45. At the same time, after the trapezoidal block 47 moves upward, the sliding block 53 moves upward driven by the rebound force of the spring three 55, and drives the trapezoidal block 47 to reset, so that the molten plastic in the area below the partition 51 will not flow back to the area above the partition 51.

[0041] When the molten plastic is fully stored, since the control board 45 needs to be pressed downward each time the material is added, when the storage is full, the control board 45 is below the block 44. When the control board 45 moves upward, the block 44 is first pushed through the inclined surface at the lower left corner of the block 44, so that the block 44 squeezes the gas inside the air pressure chamber 41 and moves to the inside of the air pressure chamber 41. When it moves to the same horizontal position as the positioning port 49 and the block 44, the block 44 enters the inside of the positioning port 49 under the action of air pressure. At this time, the block 44 touches the switch of the cylinder 2, and the cylinder 2 stops. At the same time, the molten plastic between the upper template 3 and the lower template 82 is fully stored.

[0042] When the molten plastic solidifies, the staff first moves the positioning rod 84 outward. When the positioning rod 84 moves to leave the positioning hole 85, the staff rotates the control rod 83, so that the control rod 83 drives the rotating shaft 81 to rotate. When the front end part of the control rod 83 rotates from a vertical state to a horizontal state, the lower template 82 just rotates from a horizontal state to a vertical state. At this time, the finished product inside the upper template 3 falls to the top of the receiving plate 9 under the action of gravity, and the staff can take out the finished product by opening the shell door 5.

[0043] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. An L-shaped bracket rapid production mold, comprising a shell (1), characterized in that: The top end of the shell (1) is fixedly connected to a cylinder (2), the inner wall of the shell (1) is fixedly connected to an upper template (3), an injection molding mechanism (4) is arranged inside the upper template (3), a shell door (5) is hingedly connected to the front end of the shell (1), the injection molding mechanism (4) comprises an air pressure chamber (41), the air pressure chamber (41) is opened on the inner wall of the upper template (3), an anti-backflow component is arranged inside the upper template (3), and the anti-backflow component comprises a partition ( 51), the outer wall of the partition (51) is fixedly connected to the inner wall of the upper template (3), the top of the shell (1) is fixedly connected to the injection molding machine body (6), the injection port of the injection molding machine body (6) is connected to a hose (7), the end of the hose (7) away from the injection molding machine body (6) passes through and is fixedly connected to the top inner wall of the upper template (3), and the bottom end of the upper template (3) is provided with a material taking component (8), and the material taking component (8) includes a rotating shaft (81).

2. The L-shaped bracket rapid production mold according to claim 1, characterized in that: The piston on the inner wall of the bottom end of the air pressure chamber (41) is connected to a control block (42); the right end of the control block (42) is elastically connected to the inner wall of the air pressure chamber (41) via a spring (43); the piston on the inner wall of the air pressure chamber (41) at one end away from the control block (42) is connected to a clamping block (44); and the piston on the inner wall of the upper template (3) is connected to a control plate (45).

3. The L-shaped bracket rapid production mold according to claim 2, characterized in that: The control plate (45) is provided with a trapezoidal hole (46) inside, the inner wall of the control plate (45) is slidably connected with a trapezoidal block (47), the top end of the control plate (45) is elastically connected to the inner wall of the top end of the upper template (3) through a second spring (48), a positioning port (49) is provided at the right end of the control plate (45), and the inner wall piston of the upper template (3) is connected with a baffle (410).

4. The L-shaped bracket rapid production mold according to claim 1, characterized in that: The inner wall of the upper template (3) is fixedly connected to a fixed tube (52), the inner wall of the fixed tube (52) is slidably connected to a sliding block (53), the bottom end of the sliding block (53) is fixedly connected to a trapezoidal plate (54), the shape of the trapezoidal plate (54) is consistent with the shape of the through hole opened in the middle of the partition (51), the top end of the sliding block (53) is elastically connected to the inner wall of the fixed tube (52) via a spring three (55), and the output end of the cylinder (2) passes through the top end of the upper template (3) and is fixedly connected to the top end of the trapezoidal block (47).

5. The L-shaped bracket rapid production mold according to claim 1, characterized in that: The outer wall of the rotating shaft (81) is rotatably connected to the lower left end of the upper template (3), the outer wall of the rotating shaft (81) is fixedly connected to the lower template (82), the inner wall of the rotating shaft (81) passes through and is fixedly connected to a control rod (83), the outer wall of the control rod (83) passes through and is rotatably connected to the front inner wall of the shell (1), the end of the control rod (83) away from the upper template (3) passes through and is fixedly connected to a positioning rod (84), and a positioning hole (85) is opened on the front surface of the shell (1).

6. The L-shaped bracket rapid production mold according to claim 5, characterized in that: The inner wall of the shell (1) at the lower end of the lower template (82) is slidably connected to a receiving plate (9), and the lower end of the receiving plate (9) is elastically connected to the inner wall of the shell (1) via a spring four (10).

7. The L-shaped bracket rapid production mold according to claim 5, characterized in that: The upper template (3) is L-shaped, and the inner wall surface of the upper template (3) is smooth. The lower template (82) is in the shape of a rectangular parallelepiped with a rounded corner at the upper right end.

8. The L-shaped bracket rapid production mold according to claim 3, characterized in that: The cross-sectional shape of the clamping block (44) is a right-angled trapezoid, and the upper and lower spacing of the clamping block (44) matches the upper and lower spacing of the positioning opening (49).

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