Automatic demolding mechanism of precision mold

Abstract

The utility model discloses an automatic demoulding mechanism of a precision mould, which is characterized in that the top surface of a main body bottom plate is fixedly connected with the lower ends of two support frames, a positive and negative reciprocating screw rod is rotatably connected between the upper ends of the two support frames, and an output shaft of a three-phase motor penetrates through the upper ends of the support frames and is fixedly connected to the left end of the positive and negative reciprocating screw rod; the left end of the forward and reverse reciprocating screw rod penetrates through and is in threaded connection with a first sliding block, and the supporting table is fixedly connected to the middle of the top face of the body bottom plate and located between the lower ends of the supporting frames. A lower die fixing assembly is arranged on the top face of the supporting table, a forward and reverse reciprocating lead screw is arranged, a first sliding block and a first connecting rod are used for driving a die fixing piece cover plate to stably move up and down, and key damage during demolding is avoided; the distance between the upper ends of the fixing assemblies is adjusted by adjusting the threaded holes, fixed in different positions, of the fixing screws in the lower die fixing assemblies, the size of the lower die capable of being fixed by the lower die fixing assemblies is adjusted, and then the die fixing assembly adapts to dies of different sizes.

Description

Technical Field

[0001] The utility model relates to the field of micro-precision molds, in particular to an automatic demoulding mechanism for precision molds. Background Art

[0002] The mold is a tool that makes the blank into a product with a specific shape and size under the action of external force. It is widely used in blanking, die forging, cold heading, extrusion, powder metallurgy pressing, pressure casting, and compression molding or injection molding of engineering plastics, rubber, ceramics and other products.

[0003] The existing Chinese utility model patent with patent number: CN202322035224.3 discloses "A demoulding device for precision molds". In this utility model, the lower mold and the upper mold can be separated slowly and uniformly by the set screw and suction cup. After the workpiece is fixed by the set clamping frame and positioning plug, the workpiece can be slowly and uniformly lifted up from the bottom end of the inner wall of the lower mold by the set upper ejection cylinder in cooperation with the ejector rod and the ejector plate. By setting the ejector rod and the ejector plate in four positions, the force applied by the device to the bottom end of the workpiece can be more evenly distributed, thereby reducing the damage to the bottom end of the workpiece caused by the device, making it more convenient for personnel to operate and use.

[0004] Although the above device has certain advantages in reducing the damage to the workpiece, it still has certain defects:

[0005] In actual work, tiny precision molds of different sizes also have the need for mechanical demoulding, but the above-mentioned device is not suitable for tiny molds of different sizes, so it needs to be improved. Utility Model Content

[0006] Therefore, in order to solve the above-mentioned shortcomings, the utility model provides an automatic demoulding mechanism for a precision mold.

[0007] The utility model is implemented by constructing an automatic demoulding mechanism for a precision mold, the device comprising:

[0008] The top surface of the main body bottom plate is fixedly connected to the lower ends of two support frames;

[0009] Among them, a three-phase motor is fixedly connected to the left side of the upper end of the support frame located on the left part of the top surface of the main body bottom plate, a forward and reverse reciprocating screw rod is rotatably connected between the upper ends of the two support frames, and the output shaft of the three-phase motor passes through the upper end of the support frame and is fixedly connected to the left end of the forward and reverse reciprocating screw rod, and the left end of the forward and reverse reciprocating screw rod passes through and is threadedly connected with a first sliding block, characterized in that: it also includes:

[0010] The support table is fixedly connected to the middle of the top surface of the main body bottom plate, and the support table is located between the lower ends of the support frames;

[0011] A lower mold fixing assembly is provided on the top surface of the support table.

[0012] Preferably, the front and rear sides of the first sliding block are rotatably connected to the upper end of the first connecting rod, the lower end of the first connecting rod is rotatably connected to the lower end of the second connecting rod, and the upper end of the second connecting rod is rotatably connected to the front and rear sides of the second sliding block.

[0013] Preferably, the second sliding block is threadedly connected to the right end of the forward and reverse reciprocating screw rod, and the connection between the lower ends of the first connecting rod and the second connecting rod is rotatably connected to the upper end of the upper mold fixing cover plate, and a suction cup is provided at the bottom of the upper mold fixing cover plate.

[0014] Preferably, the top surface of the support table is provided with threaded holes in a cross-shaped distribution, and the lower mold fixing assembly includes:

[0015] The lower mold bearing plate is fixedly connected to the middle of the top surface of the support table;

[0016] Wherein, the front, rear, left and right sides of the lower mold bearing plate are slidably connected with fixed components.

[0017] Preferably, gaskets are fixedly connected to the four corners of the top surface of the lower mold load-bearing plate, and a reserved hole is provided in the middle of the top surface of the lower mold load-bearing plate, an electric push rod is fixedly connected to the bottom of the lower mold load-bearing plate, and a rising plate is fixedly connected to the output shaft of the top surface of the electric push rod, and the rising plate is slidably connected to the inner side of the reserved hole, and a first slide groove and a second slide groove are respectively provided on the lower part of the front side surface and the upper part of the right side surface of the reserved hole.

[0018] Preferably, the fixing assembly comprises:

[0019] The front end of the slide bar is fixedly connected to the left and right parts of the back of the L-row fixed plate;

[0020] Among them, a resistance-enhancing layer is provided on the top surface of the L-row fixed plate, and a spring front end is fixedly connected to the middle of the back of the L-row fixed plate, a screw fixing plate is fixedly connected to the middle and lower part of the front side surface of the L-row fixed plate, and a fixing screw is penetrated and threadedly connected to the top surface of the screw fixing plate.

[0021] Preferably, the two fixed components are slidably connected to the inner side of the first slide groove through the rear end of the slide rod, and the two fixed components are slidably connected to the inner side of the second slide groove through the rear end of the slide rod. The rear end of the spring is fixedly connected to the middle of the front, rear, left and right sides of the lower mold load-bearing plate, and the fixed components are fixedly connected to the top surface of the support table through fixing screws and threaded holes.

[0022] The utility model has the following advantages: The utility model provides an automatic demoulding mechanism for a precision mold through improvement, which has the following improvements compared with the same type of equipment:

[0023] The utility model discloses an automatic demoulding mechanism for a precision mold, which drives a mold fixing cover plate to move up and down smoothly by means of a forward and reverse reciprocating screw rod through a first sliding block and a first connecting rod, and completes mechanical automatic demoulding by adsorbing the upper mold of the mold through a suction cup, thereby avoiding damage to the key during demoulding, and adjusting the distance between the upper ends of the fixing components by setting threaded holes for adjusting fixing screws at different positions in the lower mold fixing component, thereby adjusting the size of the lower mold of the mold that can be fixed by the lower mold fixing component, thereby adapting to molds of different sizes. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 It is a schematic diagram of the structure of the utility model;

[0025] Figure 2 It is a schematic diagram of the support table structure of the utility model;

[0026] Figure 3 It is a schematic diagram of the structure of the lower die load-bearing plate of the utility model;

[0027] Figure 4 It is a structural schematic diagram of the fixing assembly of the utility model.

[0028] Among them: main body bottom plate -101, support frame -102, three-phase motor -103, forward and reverse reciprocating screw -104, first sliding block -105, first connecting rod -106, second connecting rod -107, second sliding block -108, upper mold fixing cover -109, support table -201, lower mold fixing component -202, threaded hole -203, lower mold bearing plate -204, fixing component -205, gasket -206, reserved hole -207, electric push rod -208, rising plate -209, first slide groove -210, second slide groove -211, slide rod -212, L-row fixing plate -213, resistance increasing layer -214, spring -215, screw fixing plate -216, fixing screw -217. DETAILED DESCRIPTION

[0029] The following is combined with Figures 1 to 4 The principles and features of the present invention are described, and the examples given are only used to explain the present invention, and are not used to limit the scope of the present invention. The present invention is described in more detail in the following paragraphs by way of example with reference to the accompanying drawings. The advantages and features of the present invention will become clearer according to the following description and claims. It should be noted that the drawings are all in a very simplified form and are not in precise proportions, and are only used to conveniently and clearly assist in explaining the purpose of the embodiments of the present invention.

[0030] It should be noted that when a component is referred to as being "fixed to" another component, it may be directly on the other component or there may also be a component centered. When a component is considered to be "connected to" another component, it may be directly connected to the other component or there may also be a component centered. When a component is considered to be "set on" another component, it may be directly set on the other component or there may also be a component centered. The terms "vertical", "horizontal", "left", "right" and similar expressions used herein are for illustrative purposes only.

[0031] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those commonly understood by those skilled in the art in the technical field of the present invention. The terms used herein in the specification of the present invention are only for the purpose of describing specific embodiments and are not intended to limit the present invention. The term "and / or" used herein includes any and all combinations of one or more of the related listed items. Embodiment 1:

[0032] See also Figure 1 and Figure 2 The utility model provides an automatic demoulding mechanism for a precision mold, comprising:

[0033] A main body bottom plate 101, to the top surface of which are fixedly connected the lower ends of two support frames 102;

[0034] Among them, a three-phase motor 103 is fixedly connected to the left side of the upper end of the support frame 102 located on the left part of the top surface of the main body bottom plate 101, and a forward and reverse reciprocating screw rod 104 is rotatably connected between the upper ends of the two support frames 102, and the output shaft of the three-phase motor 103 passes through the upper end of the support frame 102 and is fixedly connected to the left end of the forward and reverse reciprocating screw rod 104, and the left end of the forward and reverse reciprocating screw rod 104 passes through and is threadedly connected to a first sliding block 105, which is characterized in that: it also includes:

[0035] A support table 201, the support table 201 is fixedly connected to the middle of the top surface of the main body bottom plate 101, and the support table 201 is located between the lower ends of the support frames 102;

[0036] A lower mold fixing assembly 202 is provided on the top surface of the support table 201, and the front and rear sides of the first sliding block 105 are rotatably connected to the upper end of the first connecting rod 106, the lower end of the first connecting rod 106 is rotatably connected to the lower end of the second connecting rod 107, and the upper end of the second connecting rod 107 is rotatably connected to the front and rear sides of the second sliding block 108. The second sliding block 108 is threadedly connected to the right end of the forward and reverse reciprocating screw rod 104, so as to facilitate the synchronous forward and reverse displacement of the first sliding block 105 and the second sliding block 108. The connection between the lower end of the first connecting rod 106 and the lower end of the second connecting rod 107 is rotatably connected to the upper end of the upper mold fixing cover plate 109, so as to facilitate replacement with a latch fixing cover plate when encountering a larger size upper mold. A suction cup is provided at the bottom of the upper mold fixing cover plate 109, so as to facilitate adsorption and fixation of the upper mold of a small precision mold.

[0037] The working principle of the automatic demoulding mechanism of a precision mold based on Example 1 is:

[0038] After the micro-precision mold is fixed to the lower mold fixing component 202, the forward and reverse reciprocating screw rod 104 is driven by the three-phase motor 103 to rotate between the upper ends of the support frame 102, thereby driving the first sliding block 105 and the second sliding block 108 to simultaneously perform forward and reverse displacements, and then the upper mold fixing component cover plate 109 is driven to displace by the first connecting rod 106 and the second connecting rod 107, and then the upper mold of the micro-precision mold is fixed by the suction cup at the bottom of the upper mold fixing component cover plate 109, and then the forward and reverse reciprocating screw rod 104 is rotated in the opposite direction by the three-phase motor 103 to drive the upper mold of the micro-precision mold to move upward smoothly, thereby completing the mechanical automatic demolding of the micro-precision mold to avoid accidental damage to the workpiece by manual demolding. Embodiment 2:

[0039] See also Figure 1 , Figure 2 , Figure 3 and Figure 4 Compared with the first embodiment, the present invention is an automatic demoulding mechanism for a precision mold. The present embodiment further includes: a top surface of a support table 201 is cross-distributed with threaded holes 203, and a lower mold fixing assembly 202 includes:

[0040] The lower mold bearing plate 204 is fixedly connected to the middle of the top surface of the support table 201;

[0041] Among them, the lower mold bearing plate 204 is slidably connected with a fixing component 205 on the front, back, left and right sides, and the four corners of the top surface of the lower mold bearing plate 204 are fixedly connected with gaskets 206 to provide a small area of ​​support for the lower mold of the micro-precision mold to prevent the lower mold of the micro-precision mold from scratching with the lower mold bearing plate 204, and a reserved hole 207 is provided in the middle of the top surface of the lower mold bearing plate 204, so that the lower mold of the micro-precision mold can be lifted up by the electric push rod 208 and then removed conveniently. The bottom of the lower mold bearing plate 204 is fixedly connected with an electric push rod 208, and the top surface output shaft of the electric push rod 208 is fixedly connected with a rising plate 209, and the rising plate 209 is slidably connected to the inner side of the reserved hole 207, and the lower part of the front side and the middle part of the right side of the reserved hole 207 are respectively provided with a first slide groove 210 and a second slide groove 211, and the fixing component 205 includes:

[0042] A slide bar 212, the front end of which is fixedly connected to the left and right back parts of the L-row fixed plate 213;

[0043] Among them, the top surface of the L-row fixed plate 213 is provided with a resistance-enhancing layer 214 to increase the stability during demoulding, and the front end of the spring 215 is fixedly connected to the middle of the back of the L-row fixed plate 213 to facilitate the rebound of the fixed component 205, and the screw fixing plate 216 is fixedly connected to the middle and lower part of the front side of the L-row fixed plate 213. The top surface of the screw fixing plate 216 is penetrated and threaded with a fixing screw 217. The two fixing components 205 are slidably connected to the inside of the first slide groove 210 through the rear end of the slide rod 212, and the two fixing components 205 are slidably connected to the inside of the second slide groove 211 through the rear end of the slide rod 212, ensuring that the fixing components 205 are smoothly displaced and adjusted while providing connection and fixation. The rear end of the spring 215 is fixedly connected to the middle of the front, rear, left and right sides of the lower mold bearing plate 204, and the fixing component 205 is fixedly connected to the top surface of the support table 201 through the fixing screw 217 and the threaded hole 203. It is convenient to fix and adjust the position of the fixing component 205;

[0044] In this embodiment;

[0045] It is necessary to release the fixation of the fixing screws 217 and the threaded holes 203 according to the size of the lower mold of the micro-precision mold, and then adjust the position of the fixing component 205 on the front, back, left and right sides of the lower mold load-bearing plate 204, and then fix the fixing screw plate 216 through the threaded holes 203 in conjunction with the fixing screws 217 to fix the fixing component 205, and then place the micro-precision mold to complete the fixation of lower molds of different sizes. After demolding is completed, the electric push rod 208 drives the rising plate 209 to push the lower mold of the micro-precision mold to rise and break away from the fixation of the fixing component 205, making it convenient for workers to take it away.

[0046] The utility model provides an automatic demoulding mechanism for a precision mold through improvement, in which a forward and reverse reciprocating screw 104 is provided to drive a mold fixing cover plate 109 to move up and down smoothly through a first sliding block 105 and a first connecting rod 106, and a suction cup is used to absorb the upper mold of the mold to complete mechanical automatic demoulding, thereby avoiding damage to the key during demoulding, and an adjustment screw 217 is provided in a lower mold fixing component 202 to fix threaded holes 203 at different positions to adjust the spacing between the upper ends of the fixing components 205, thereby adjusting the size of the lower mold of the mold that can be fixed by the lower mold fixing component 202, thereby adapting to molds of different sizes.

[0047] The above shows and describes the basic principle, main features and advantages of the utility model, and the standard parts used in the utility model can be purchased from the market, and special-shaped parts can be customized according to the description and the drawings. The specific connection methods of each part adopt mature conventional means such as bolts, rivets, welding, etc. in the prior art. Machinery, parts and equipment all adopt conventional models in the prior art, and the circuit connection adopts the conventional connection method in the prior art, which will not be described in detail here.

[0048] The above description of the disclosed embodiments enables those skilled in the art to implement or use the present invention. Various modifications to these embodiments will be apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention will not be limited to the embodiments shown herein, but will conform to the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. An automatic demoulding mechanism for a precision mold, comprising: A main body bottom plate (101), wherein the top surface of the main body bottom plate (101) is fixedly connected to the lower ends of two support frames (102); A three-phase motor (103) is fixedly connected to the left side surface of the upper end of the support frame (102) located on the left side of the top surface of the main body bottom plate (101), a forward and reverse reciprocating screw rod (104) is rotatably connected between the upper ends of the two support frames (102), and the output shaft of the three-phase motor (103) passes through the upper end of the support frame (102) and is fixedly connected to the left end of the forward and reverse reciprocating screw rod (104), and the left end of the forward and reverse reciprocating screw rod (104) passes through and is threadedly connected to a first sliding block (105), characterized in that: A support table (201), the support table (201) being fixedly connected to the middle of the top surface of the main body bottom plate (101), and the support table (201) being located between the lower ends of the support frames (102); A lower mold fixing assembly (202) is provided on the top surface of the support table (201).

2. The automatic demoulding mechanism of a precision mold according to claim 1, characterized in that: The front and rear sides of the first sliding block (105) are rotatably connected to the upper end of a first connecting rod (106), the lower end of the first connecting rod (106) is rotatably connected to the lower end of a second connecting rod (107), and the upper end of the second connecting rod (107) is rotatably connected to the front and rear sides of the second sliding block (108).

3. The automatic demoulding mechanism of a precision mold according to claim 2, characterized in that: The second sliding block (108) is threadedly connected to the right end of the forward and reverse reciprocating screw rod (104), and the connection between the lower end of the first connecting rod (106) and the lower end of the second connecting rod (107) is rotatably connected to the upper end of the upper mold fixing cover plate (109), and a suction cup is provided at the bottom of the upper mold fixing cover plate (109).

4. The automatic demoulding mechanism of a precision mold according to claim 3, characterized in that: The top surface of the support table (201) is provided with threaded holes (203) arranged in a cross shape, and the lower mold fixing assembly (202) comprises: A lower mold load-bearing plate (204), wherein the lower mold load-bearing plate (204) is fixedly connected to the middle of the top surface of the support table (201); The lower die load-bearing plate (204) is slidably connected to the front, rear, left, and right sides of the lower die with a fixing assembly (205).

5. The automatic demoulding mechanism of a precision mold according to claim 4, characterized in that: Gaskets (206) are fixedly connected to the four corners of the top surface of the lower die load-bearing plate (204), and a reserved hole (207) is provided in the middle of the top surface of the lower die load-bearing plate (204). An electric push rod (208) is fixedly connected to the bottom of the lower die load-bearing plate (204), and a rising plate (209) is fixedly connected to the output shaft of the top surface of the electric push rod (208). The rising plate (209) is slidably connected to the inner side of the reserved hole (207), and a first slide groove (210) and a second slide groove (211) are respectively provided at the lower part of the front side surface and the upper part of the right side surface of the reserved hole (207).

6. The automatic demoulding mechanism of a precision mold according to claim 5, characterized in that: The fixing assembly (205) comprises: A slide bar (212), the front end of which is fixedly connected to the left and right back portions of the L-row fixed plate (213); The top surface of the L-row fixing plate (213) is provided with a resistance-enhancing layer (214), and the front end of a spring (215) is fixedly connected to the middle of the back of the L-row fixing plate (213), and the middle and lower part of the front side surface of the L-row fixing plate (213) is fixedly connected to a screw fixing plate (216), and the top surface of the screw fixing plate (216) is penetrated and threadedly connected with a fixing screw (217).

7. The automatic demoulding mechanism of a precision mold according to claim 6, characterized in that: The two fixing components (205) are slidably connected to the inner side of the first slide groove (210) through the rear end of the slide rod (212), and the two fixing components (205) are slidably connected to the inner side of the second slide groove (211) through the rear end of the slide rod (212). The rear end of the spring (215) is fixedly connected to the middle of the front, rear, left and right sides of the lower mold bearing plate (204). The fixing components (205) are fixedly connected to the top surface of the support table (201) through fixing screws (217) and threaded holes (203).

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