Compression molding device of motor balancing weight

Abstract

The utility model discloses a compression molding device for a motor balancing weight, which comprises a fixed die, a fixed die and a fixed die, wherein the fixed die is of a barrel-shaped structure with an opening at the top; the movable die comprises a bottom die and a top die arranged right above the bottom die; the lifting assembly drives the movable die to move in the vertical direction, the top end of the moving path of the bottom die is a taking and placing position, the bottom end of the moving path of the bottom die is a pressure bearing position, the bottom end of the moving path of the top die is a pressing position, and the top face of the bottom die at the taking and placing position is higher than or flush with the top of the fixed die. And the bottom die at the pressure-bearing position, the top die at the pressing position and the fixed die define a die pressing cavity. According to the compression molding device of the motor balancing weight, the bottom die, the top die and the fixed die are controlled by the lifting assembly to define the die pressing cavity, after a blank is subjected to compression molding, the bottom die is controlled by the lifting assembly to ascend, the bottom die drives the balancing weight to be smoothly separated from the fixed die, material taking is convenient, and therefore the production efficiency is improved; the position of the balancing weight does not need to be manually adjusted, and labor cost is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of motor counterweight production, in particular to a pressing and forming device for a motor counterweight. Background Art

[0002] Motor counterweights are mainly used to balance the centrifugal force when the motor is working, so as to reduce motor vibration and noise, reduce motor loss, extend service life and ensure safety.

[0003] Motor counterweights are usually produced by batch metal pressing. For example, in the prior art, a Chinese utility model patent with announcement number CN220230285U discloses a counterweight pressing device, which mainly adopts a split structure of an upper pressing mold and two lower pressing molds. After pressing and forming, the upper pressing mold rises and the two lower pressing molds move away from each other, thereby facilitating demoulding.

[0004] However, after the above-mentioned forming device presses the blank into shape, the binding force between the counterweight block of the finished product and one of the pressing dies is greater than the binding force between the other pressing dies, resulting in the counterweight block easily moving with one of the pressing dies after the two pressing dies are separated. At this time, the push plate cannot move the counterweight block out of the equipment, and workers are required to manually adjust the position of the counterweight block. This reduces the production efficiency of the counterweight block and increases labor costs.

[0005] Therefore, it is necessary to improve the counterweight pressing and forming device in the prior art. Utility Model Content

[0006] The purpose of the utility model is to overcome the defects in the prior art and provide a pressing and forming device for a motor counterweight block which is beneficial to reducing labor costs and improving production efficiency.

[0007] In order to achieve the above technical effects, the technical solution of the utility model is: a pressing and forming device for a motor counterweight block, comprising:

[0008] A fixed mold, wherein the fixed mold is a barrel-shaped structure with an open top;

[0009] A movable mold, the movable mold comprising a bottom mold and a top mold arranged just above the bottom mold;

[0010] A lifting component drives the movable mold to move in a vertical direction, the top of the movable path of the bottom mold is a pick-up and placement position, the bottom end is a pressure-bearing position, the bottom end of the movable path of the top mold is a pressing position, the top surface of the bottom mold at the pick-up and placement position is higher than or flush with the top of the fixed mold, the bottom mold at the pressure-bearing position, the top mold at the pressing position and the fixed mold enclose a molding cavity.

[0011] Preferably, in order to reduce the number of driving sources of the lifting assembly and reduce costs, the bottom mold and the top mold slide relative to each other in the vertical direction and are connected in a limiting manner.

[0012] Preferably, in order to achieve a relative sliding limit connection between the bottom mold and the top mold, the movable mold also includes a connecting frame, one of the bottom mold and the top mold is fixedly connected to the connecting frame, and the other is relatively slidably connected to the connecting frame along a vertical direction, and the output end of the lifting assembly is connected to the connecting frame.

[0013] Preferably, in order to ensure the quality of press forming, the top die includes a pressing plate, the pressing plate is fixedly connected to a sliding rod slidably arranged on the connecting frame, and the sliding rod is provided with two limit members distributed in the vertical direction.

[0014] Preferably, in order to ensure smooth movement of the bottom mold, the bottom mold slides on the fixed mold along the vertical direction.

[0015] Preferably, in order to facilitate the conveying of the blank to the bottom mold at the pick-and-place position, a conveyor is provided on one side of the fixed mold, and the conveyor has a horizontal conveying surface for conveying the blank, and the conveying surface and the top surface of the bottom mold at the pick-and-place position are flush with the top of the fixed mold, and the conveyor is connected to a push assembly, and the push assembly is used to push the blank on the conveying surface onto the bottom mold at the pick-and-place position.

[0016] Preferably, in order to centrally collect the counterweight blocks formed after processing the blanks, a collecting assembly is also provided on the side of the fixed mold away from the conveyor, and the collecting assembly has a slope, the higher end of the slope is adjacent to the fixed mold and is lower than or flush with the top of the fixed mold, and the push assembly is also used to push the counterweight blocks at the pick-up and placement position to the higher end of the slope.

[0017] Preferably, in order to reduce the wear of the counterweight block during the collection process and ensure its collection quality, the collection assembly includes a guide groove extending along the length direction of the slope and with the groove facing upward, and the guide groove is provided with support rollers which are closely distributed along the length direction of the slope and rotate around their own axis, and the support rollers constitute the slope.

[0018] Preferably, in order to ensure that the push assembly can smoothly push the blank onto the bottom mold at the pick-up and placement position, a positioning detection assembly is provided at the output end of the conveyor, and the positioning detection assembly includes a material stopper, and the material stopper is connected to a distance sensor.

[0019] Preferably, in order to ensure that the blank can be smoothly moved from the transmission surface to the bottom mold, the conveyor further has a transition surface flush with the transmission surface, and the transition surface is filled between the transmission surface and the top of the fixed mold.

[0020] To sum up, compared with the prior art, the pressing and forming device of the motor counterweight block of the utility model controls the bottom mold and the top mold to enclose the fixed mold to form a molding cavity through the lifting component. After the blank is pressed and formed, the lifting component controls the bottom mold to rise, so that the bottom mold drives the counterweight block to smoothly separate from the fixed mold, which is convenient for material removal, thereby helping to improve production efficiency and eliminating the need to manually adjust the position of the counterweight block, thereby reducing labor costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 is a schematic structural diagram of the first embodiment;

[0022] Figure 2 yes Figure 1 Schematic diagram of the structure of the fixed mold;

[0023] Figure 3 yes Figure 1 Explosion diagram of

[0024] Figure 4 It is a schematic diagram of the structure of the first embodiment when the mold is closed;

[0025] Figure 5 yes Figure 4 A schematic cross-sectional structure diagram of ;

[0026] Figure 6 is a schematic structural diagram of a second embodiment;

[0027] Figure 7 It is a schematic diagram of the structure of the collection component;

[0028] Figure 8 It is a schematic diagram of the connection structure of the conveyor, positioning detection and horizontal push assembly;

[0029] Fig. 9 yes Figure 8 Explosion diagram of

[0030] In the figure: 1, fixed mold; 11, mold frame; 12, limit plate; 121, first slide; 13, side plate; 131, second slide; 14, support leg; 2, movable mold; 21, bottom mold; 211, bottom plate; 212, slide plate; 22, top mold; 221, pressure plate; 222, slide bar; 223, limiter; 23, connecting frame; 3, lifting assembly; 31, lifting cylinder; 32, fixed frame; 4, Conveyor; 41. Conveyor frame; 411. Outer flange; 42. Conveyor roller; 43. Sprocket; 44. Chain; 45. Conveyor motor; 46. Bracket; 5. Push assembly; 51. Push cylinder; 52. Push block; 6. Collecting assembly; 61. Guide groove; 62. Support roller; 7. Positioning detection assembly; 71. Material stopper; 711. Detection hole; 72. Distance sensor; 73. Detection frame; 8. Blank. DETAILED DESCRIPTION

[0031] The following is a further description of the specific implementation of the present invention in conjunction with the accompanying drawings and embodiments. The following embodiments are only used to more clearly illustrate the technical solution of the present invention, and cannot be used to limit the protection scope of the present invention.

[0032] First embodiment

[0033] like Figure 1-Figure 5 As shown, the pressing and forming device of the motor counterweight block of the first embodiment of the utility model comprises:

[0034] The fixed mold 1 is a barrel-shaped structure with an open top;

[0035] The movable mold 2 includes a bottom mold 21 and a top mold 22 disposed just above the bottom mold 21;

[0036] The lifting component 3 drives the movable mold 2 to move in the vertical direction. The top of the movable path of the bottom mold 21 is the pick-up and placement position, and the bottom is the pressure-bearing position. The bottom end of the movable path of the top mold 22 is the pressing position. The top surface of the bottom mold 21 at the pick-up and placement position is higher than or flush with the top of the fixed mold 1. The bottom mold 21 at the pressure-bearing position, the top mold 22 at the pressing position and the fixed mold 1 enclose a molding cavity.

[0037] When the device is used, the lifting component 3 first raises the bottom mold 21 to the pick-up and placement position. After the blank 8 is placed on the bottom mold 21, the lifting component 3 controls the bottom mold 21 and the top mold 22 to descend, so that the bottom mold 21 moves to the pressure-bearing position and the top mold 22 descends to the pressing position. At this time, the circumferential outer edges of the bottom mold 21 and the top mold 22 are sealed and connected with the circumferential inner wall of the fixed mold 1, and the three are enclosed to form a molding cavity. After the blank 8 is pressed into a counterweight block, the lifting component 3 controls the top mold 22 and the bottom mold 21 to rise, so that the bottom mold 21 rises to the pick-up and placement position. Since the counterweight block is located between the bottom mold 21 and the top mold 22 during the rising process, the counterweight block rises synchronously with the rise of the bottom mold 21, avoiding the formed counterweight block being fixed on the inner side of the movable mold 2. When the bottom mold 21 rises to the pick-up and placement position, the counterweight block is located directly above the fixed mold 1, thereby facilitating material removal and eliminating the need to manually adjust the position of the counterweight block after molding. On the one hand, it reduces labor costs and on the other hand, it is conducive to improving production efficiency.

[0038] A further improvement is that the bottom mold 21 and the top mold 22 slide relative to each other in the vertical direction and are connected in a limited position. The movable mold 2 also includes a connecting frame 23. One of the bottom mold 21 and the top mold 22 is fixedly connected to the connecting frame 23, and the other is connected to the connecting frame 23 in a relative sliding manner in the vertical direction. The output end of the lifting assembly 3 is connected to the connecting frame 23.

[0039] After adopting the above design, the bottom mold 21 and the top mold 22 are connected by a sliding limit in the vertical direction through the connecting frame 23. In this way, the lifting component 3 only needs one driving source to control the bottom mold 21 and the top mold 22 to realize the lifting movement and ensure the relative sliding connection between the two, thereby reducing the number of lifting components 3 and thus reducing the cost of the device.

[0040] A further improvement is that the top mold 22 includes a pressing plate 221, which is fixedly connected to a sliding rod 222 that slides through the connecting frame 23, and the sliding rod 222 is provided with two limit members 223 distributed along the vertical direction; the bottom mold 21 slides on the fixed mold 1 along the vertical direction.

[0041] Specifically, the specific structure of the fixed mold 1 is as follows Figure 2 As shown, the fixed mold 1 includes a vertical mold frame 11, a horizontal limit plate 12 is arranged at the bottom of the mold frame 11, a first slide 121 is arranged on the limit plate 12, horizontal side panels 13 are arranged on both sides of the mold frame 11, a second slide 131 is arranged on the side panels 13, and support feet 14 are fixed below the side panels 13.

[0042] The bottom mold 21 includes a horizontal bottom plate 211 , a vertical slide plate 212 is fixed below the bottom plate 211 , and the slide plate 212 is inserted into the inner side of the first sliding opening 121 to achieve sliding cooperation between the bottom plate 211 and the limiting plate 12 in the vertical direction.

[0043] The top mold 22 includes a horizontal pressing plate 221 , above which a sliding rod 222 extending in a vertical direction is fixed. The sliding rod 222 has two stoppers 223 distributed along its axial direction, wherein the lower stopper 223 is fixedly connected to the top surface of the pressing plate 221 .

[0044] The connecting frame 23 is a rectangular frame structure, the fixed mold 1 is located on the inner side of the connecting frame 23, the inner wall of the bottom of the connecting frame 23 is located below the bottom end of the slide plate 212, the two side walls of the connecting frame 23 are sealed and penetrated on the inner side of the second sliding opening 131 of the side plate 13, and a sliding opening for the sliding rod 222 to be sealed and penetrated is provided on the top side wall.

[0045] The lifting assembly 3 includes an inverted U-shaped fixing frame 32 and a lifting cylinder 31 arranged on the fixing frame 32 along the vertical direction. The two ends of the fixing frame 32 are respectively fixed above the two side plates 13. The cylinder barrel of the lifting cylinder 31 is fixedly connected to the fixing frame 32, and the bottom end of the piston rod is fixedly connected to the connecting frame 23.

[0046] After adopting the above structure, the piston rod of the lifting cylinder 31 is telescopically moved, which can drive the bottom mold 21 to move up and down through the connecting frame 23, and realize the lifting and moving of the top mold 22 and the relative sliding connection between the top mold 22 and the bottom mold 21.

[0047] Specifically, in the initial state, the bottom mold 21 is located in the pressure-bearing position, and there is a gap between the bottom end of the slide plate 212 and the inner bottom wall of the connecting frame 23. When the piston rod moves upward, the connecting frame 23 rises and contacts the bottom end of the slide plate 212, so that the lifting cylinder 31 drives the bottom mold 21 to move upward through the connecting frame 23 until the bottom mold 21 rises to the pick-up and placement position.

[0048] In the above process, the top die 22 is affected by gravity and its position is fixed at first, while the bottom die 21 moves upward, and the bottom die 21 and the top die 22 slide relative to each other. When the connecting frame 23 is connected to the limiting piece 223 on the upper part of the top die 22, the top die 22 can be driven to rise. At this time, the top die 22 and the bottom die 21 remain relatively still, and both move upward until the bottom die 21 moves to the pick-up and placement position. In this position, the blank 8 can be conveniently placed on the bottom die 21, or the pressed counterweight block can be removed from the bottom die 21.

[0049] After placing the blank 8, the piston rod of the lifting cylinder 31 moves downward, causing the connecting frame 23 to descend. The bottom mold 21 and the top mold 22 are affected by gravity and both move downward, while the two remain relatively still; until the bottom mold 21 descends to the pressure-bearing position and contacts the limit plate 12, the position no longer drops.

[0050] The piston rod of the lifting cylinder 31 continues to descend, and the bottom end of the slide plate 212 detaches from the inner bottom wall of the connecting frame 23. After the top die 22 contacts the blank 8, the position of the top die 22 remains fixed, and the piston rod continues to descend, causing the connecting frame 23 to slide relative to the top die 22 until the top wall of the connecting frame 23 acts on the limit piece 223 in contact with the pressure plate 221. As the connecting frame 23 continues to descend, the top die 22 descends relative to the bottom die 21. During the descent of the top die 22, pressure is applied to the blank 8, and the bottom die 21 bears the pressure from above until the top die 22 moves to the lowest position, enclosing with the bottom die 21 and the fixed die 1 to form a molding cavity, and the blank 8 is pressed into a counterweight block.

[0051] Afterwards, the piston rod of the lifting cylinder 31 moves upward again, thereby lifting the slide plate 212 and the bottom plate 211, so that the bottom mold 21 rises to the placement position, making it convenient to take out the counterweight block.

[0052] Second embodiment

[0053] like Figure 6-Figure 9As shown, the pressing and forming device of the motor counterweight block of the first embodiment of the utility model is based on the first embodiment, with the difference that a conveyor 4 is arranged on one side of the fixed mold 1, the conveyor 4 has a horizontal conveying surface for conveying the blank 8, the conveying surface and the top surface of the bottom mold 21 at the pick-and-place position are flush with the top of the fixed mold 1, the conveyor 4 is connected with a push assembly 5, the push assembly 5 is used to push the blank 8 on the conveying surface to the bottom mold 21 at the pick-and-place position; a collecting assembly 6 is also arranged on the side of the fixed mold 1 away from the conveyor 4, the collecting assembly 6 has a slope, the higher end of the slope is adjacent to the fixed mold 1 and lower than the top of the fixed mold 1, the push assembly 5 is also used to push the counterweight block at the pick-and-place position to the higher end of the slope.

[0054] After adopting the above structure, during production and processing, the blank 8 is conveniently transported through the conveyor 4, and then the blank 8 at the output end of the conveyor 4 is pushed to the bottom mold 21 moved to the pick-up and placement position by the push assembly 5. After the blank 8 is pressed into a counterweight block and the bottom mold 21 returns to the pick-up and placement position, the pressed counterweight block is pushed to the collection assembly 6 by the push assembly 5 to collect the product.

[0055] A further improvement is, Figure 7 As shown, the collecting assembly 6 includes a guide groove 61 extending along the length direction of the slope and with the groove opening facing upward. The guide groove 61 is provided with supporting rollers 62 which are closely distributed along the length direction of the slope and rotate around their own axis, and the supporting rollers 62 form the slope.

[0056] In actual production and use, a collection box with an open top can be placed at the end of the guide groove 61, that is, below the lower end, and the counterweight block can be pushed to the head end of the guide groove 61, that is, the higher end of the guide groove 61, through the push assembly 5. The guide groove 61 is used to guide the sliding direction of the counterweight block to prevent the counterweight block from sliding off the slope. The rotating support roller 62 can reduce the wear of the counterweight block when it slides down, thereby ensuring the collection quality of the counterweight block.

[0057] A further improvement is that a positioning detection component 7 is provided at the output end of the conveyor 4, and the positioning detection component 7 includes a material stopper 71, and the material stopper 71 is connected to a distance sensor 72; the conveyor 4 also has a transition surface flush with the transmission surface, and the transition surface is filled between the transmission surface and the top of the fixed mold 1.

[0058] Specifically, Figure 6 , Figure 8 and Fig. 9As shown, the conveyor 4 includes a conveyor frame 41, which is a groove-shaped structure extending horizontally and upward. Two brackets 46 are fixed below the conveyor frame 41 to support the conveyor frame 41. The conveyor frame 41 is provided with conveyor rollers 42 distributed along its length direction and rotating around its own axis. Both ends of the conveyor rollers 42 are fixedly connected with sprockets 43 coaxially. The sprockets 43 are connected by chains 44. A conveyor motor 45 is provided on one of the brackets 46. The output end of the conveyor motor 45 is connected to one of the sprockets 43 by transmission.

[0059] In this way, a transmission surface is formed by each transmission roller 42. When the transmission motor 45 is started, it drives one of the sprockets 43 to rotate, and the chain 44 is used to realize the synchronous rotation of the other sprockets 43. In this way, each transmission roller 42 rotates around its own axis to realize the transmission of the blank 8.

[0060] Horizontal outer flanges 411 are provided on both sides of the groove of the transmission frame 41, and the top surface of one of the outer flanges 411 is flush with the top surface of the fixed mold 1, and the outer flange 411 is sealed and fitted with the side of the fixed mold 1, so that the top surface of the outer flange 411 forms a transition surface; the push assembly 5 includes a push cylinder 51, the cylinder barrel of the push cylinder 51 is fixed on one of the transmission frames 41, and along the transmission direction perpendicular to the transmission surface, toward the position of the fixed mold 1, the cylinder barrel of the push cylinder 51 is fixedly connected with a push block 52, and the push block 52 has a V-shaped opening on the side facing away from the push cylinder 51, and the two inner side walls of the V-shaped opening extend in the vertical direction.

[0061] After adopting the above structure, a transition surface is formed by utilizing the top surface of the outer flange 411, so that when the piston rod of the push cylinder 51 in the push assembly 5 extends outward, it acts on the blank 8 through the push block 52, so that the blank 8 moves smoothly from the transmission surface through the transition surface to the top surface of the bottom mold 21 at the pick-up and placement position; after the blank 8 is pressed and formed into a counterweight block, the push cylinder 51 pushes the push block 52, so that the counterweight block enters the guide groove 61 and slides down along the guide groove 61; and the V-shaped opening of the push block 52 is set, so that when the blank 8 is pushed to move, the two inner side walls of the V-shaped opening are in contact with the blank 8, which can prevent the blank 8 from sliding in the position offset along the length direction of the transmission surface.

[0062] In the positioning detection component 7, the material blocking member 71 is a material blocking plate vertically fixed on the transmission frame 41, and the material blocking plate is provided with a detection hole 711 extending along the thickness direction thereof, and the detection hole 711 is a through hole. A detection frame 73 is provided on the side of the material blocking member 71 facing away from the input end of the conveyor 4, and a distance sensor 72 facing the detection hole 711 is fixed on the detection frame 73.

[0063] The distance sensor 72 can detect the distance between the blank 8 and the transport surface. After the blank 8 moves to the predetermined position, the push assembly 5 can be used to conveniently push the blank 8 to the top surface of the bottom mold 21 at the pick-up and placement position.

[0064] In this way, the automatic feeding of the blank 8 and the automatic unloading of the counterweight product are achieved, which helps to further improve product production efficiency and reduce labor costs.

[0065] The above is only a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the technical principle of the present invention. These improvements and modifications should also be regarded as the protection scope of the present invention.

Claims

1. A pressing and forming device for a motor counterweight, characterized in that: include: A fixed mold, wherein the fixed mold is a barrel-shaped structure with an open top; A movable mold, the movable mold comprising a bottom mold and a top mold arranged just above the bottom mold; A lifting component drives the movable mold to move in a vertical direction, the top of the movable path of the bottom mold is a pick-up and placement position, the bottom end is a pressure-bearing position, the bottom end of the movable path of the top mold is a pressing position, the top surface of the bottom mold at the pick-up and placement position is higher than or flush with the top of the fixed mold, the bottom mold at the pressure-bearing position, the top mold at the pressing position and the fixed mold enclose a molding cavity.

2. The pressing and forming device for the motor counterweight according to claim 1, characterized in that: The bottom mold and the top mold slide relative to each other in a vertical direction and are connected in a limiting manner.

3. The pressing and forming device for the motor counterweight according to claim 2, characterized in that: The movable mold also includes a connecting frame. One of the bottom mold and the top mold is fixedly connected to the connecting frame, and the other is relatively slidably connected to the connecting frame along a vertical direction. The output end of the lifting component is connected to the connecting frame.

4. The pressing and forming device for the motor counterweight according to claim 3, characterized in that: The top mold includes a pressing plate, the pressing plate is fixedly connected to a sliding rod slidably arranged on the connecting frame, and the sliding rod is provided with two limiting members distributed in a vertical direction.

5. The pressing and forming device for the motor counterweight according to claim 4, characterized in that: The bottom mold slides on the fixed mold along the vertical direction.

6. The pressing and forming device for the motor counterweight according to claim 1, characterized in that: A conveyor is provided on one side of the fixed mold, and the conveyor has a horizontal conveying surface for conveying the blank. The conveying surface and the top surface of the bottom mold at the pick-and-place position are flush with the top of the fixed mold. The conveyor is connected to a push assembly, and the push assembly is used to push the blank on the conveying surface onto the bottom mold at the pick-and-place position.

7. The pressing and forming device for the motor counterweight according to claim 6, characterized in that: A collecting assembly is also provided on the side of the fixed mold away from the conveyor. The collecting assembly has a slope, the higher end of the slope is adjacent to the fixed mold and is lower than or flush with the top of the fixed mold. The push assembly is also used to push the counterweight block at the pick-up and placement position to the higher end of the slope.

8. The pressing and forming device for the motor counterweight according to claim 7, characterized in that: The collecting assembly comprises a guide groove extending along the length direction of the slope and with the groove opening facing upwards, and the guide groove is provided with supporting rollers which are closely distributed along the length direction of the slope and rotate around their own axis, and the supporting rollers constitute the slope.

9. The pressing and forming device for the motor counterweight according to claim 7, characterized in that: The output end of the conveyor is provided with a positioning detection component, and the positioning detection component includes a material blocking member, and the material blocking member is connected to a distance sensor.

10. The pressing and forming device for the motor counterweight according to claim 7, characterized in that: The conveyor also has a transition surface flush with the conveying surface, and the transition surface is filled between the conveying surface and the top of the fixed mold.

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