Thermal shaping device for metal injection molding

Abstract

The invention discloses a thermal shaping device for metal injection molding, and relates to the technical field of thermal shaping, the thermal shaping device comprises a workbench, two sets of supporting legs are symmetrically installed at the bottom of the workbench, the thermal shaping device further comprises a rotating motor fixedly installed on one side of the bottom of the workbench, and the output end of the rotating motor penetrates through the workbench and is fixedly provided with a rotating plate; four lower dies are installed at the top of the rotating plate at equal angles, a fixing frame is fixedly installed at the position, located on one side of the rotating plate, of the top of the workbench, meanwhile, a hydraulic cylinder is fixedly installed at the top of the fixing frame, and the movable end of the hydraulic cylinder penetrates through the fixing frame and is fixedly provided with a movable plate; according to the injection molding device, after a metal component is subjected to injection molding, thermal shaping operation can be conveniently carried out on the component, lubricant spraying can be conveniently carried out on a mold in the component shaping process, operation is convenient, continuity of shaping work can be guaranteed, the working efficiency is improved, abrasion of the mold is reduced, and practicability is improved.

Description

Technical Field

[0001] The present invention relates to the technical field of hot shaping, and specifically to a hot shaping device for metal injection molding. Background Art

[0002] Sintering is a process in the metal injection molding process. Sintering eliminates the pores between powder particles, making the metal injection molding products reach full density or near full densification. After sintering, the metal usually needs to be subjected to hot shaping treatment.

[0003] For example, a hot shaping device for a metal structural part for die casting molding with the publication number CN115138715A is provided with a knocking and shaping mechanism that can drive the mounting column to move up and down reciprocally, so that the knocking hammer and the protection hammer move up and down reciprocally. Through the cooperation of the limiting groove, the limiting block and the spring, the knocking of the protection hammer can be buffered to avoid the large impact force when the knocking hammer directly contacts the metal surface, and to prevent the protection hammer from being ejected downward under the elastic force of the spring to form an elastic knocking on the metal surface, and the shaping effect is more obvious. However, in actual use, during the hot shaping process of the metal component, in order to protect the mold and reduce the friction between the mold and the metal component, and to facilitate subsequent demoulding, lubricant needs to be sprayed on the shaping mold regularly. It is not convenient to spray lubricant on the mold during the shaping process. If spraying is directly carried out during the shaping process, additional spraying steps are required, the spraying time is long, it is not easy to ensure the continuity of the processing and shaping of the metal component, and the uniformity of spraying cannot be guaranteed, which is easy to cause inconsistent spraying thickness, and the spraying efficiency is low, there are certain defects in use.

[0004] Therefore, we propose a hot shaping device for metal injection molding to solve the problems mentioned above. Summary of the Invention

[0005] The purpose of the present invention is to provide a hot shaping device for metal injection molding to solve the problems in the above background art that it is not convenient to spray lubricant on the mold during the shaping process. If spraying is directly carried out during the shaping process, additional spraying steps are required, the spraying time is long, it is not easy to ensure the continuity of the processing and shaping of the metal component, and the uniformity of spraying cannot be guaranteed, which is easy to cause inconsistent spraying thickness, and the spraying efficiency is low.

[0006] To achieve the above purpose, the present invention provides the following technical solution: A hot shaping device for metal injection molding, including a workbench, and two groups of support legs are symmetrically installed at the bottom of the workbench; It further includes: A rotating motor is fixedly installed on one side of the bottom of the workbench. The output end of the rotating motor passes through the workbench and is fixedly installed with a rotating plate. Four lower molds are equiangularly installed on the top of the rotating plate. A fixed frame is fixedly installed on one side of the rotating plate on the top of the workbench. At the same time, a hydraulic cylinder is fixedly installed on the top of the fixed frame. Moreover, the movable end of the hydraulic cylinder passes through the fixed frame and is fixedly installed with a movable plate. An upper mold is fixedly installed at the bottom of the movable plate. Guide rods are symmetrically installed on the top of the movable plate. At the same time, both guide rods are slidably connected to the fixed frame; A spraying assembly is arranged on the top of the workbench and on the outer right side of the rotating plate. The spraying assembly includes a fixed plate; A spraying component is symmetrically arranged on both sides of the movable plate; The fixed plate is fixedly installed on one side of the workbench top away from the fixed frame. Two movable rods are symmetrically and slidably connected inside the fixed plate. One end of both movable rods is fixedly installed with a fixed rod. A telescopic spring is sleeved on the outer side of both movable rods. At the same time, one end of the telescopic spring is fixedly installed with a fixed block. Moreover, the fixed block is fixedly connected to the movable rod. And the other end of the telescopic spring is fixedly connected to the fixed plate.

[0007] Preferably, a rotating frame is rotatably connected to the top of the fixed rod. A spraying pipe is fixedly installed on one side inside the rotating frame. A barrel body is fixedly installed on one side of the workbench top where the fixed plate is located. At the same time, a first pump body is fixedly installed on one side of the top of the barrel body. The input end of the first pump body is connected through a pipeline to penetrate the barrel body. And the output end of the first pump body is connected through a hose to penetrate the spraying pipe.

[0008] By adopting the above technical solution, a lubricant can be sprayed on the lower mold.

[0009] Preferably, two groups of arc-shaped plates are symmetrically installed on the outer side of the rotating plate. Activity grooves are opened on the top of both groups of arc-shaped plates. The fixed rod is slidably connected to the activity groove. At the same time, an installation frame is fixedly installed above one side of the fixed plate. A support plate is fixedly installed on one side of the installation frame. A support rod is fixedly installed on one side of the support plate. An activity frame is slidably connected to the outer side of the support rod. At the same time, a connecting frame is fixedly installed on one side of the activity frame. And the connecting frame is fixedly connected to the fixed rod.

[0010] By adopting the above technical solution, the rotation of the rotating plate can push the spraying pipe to move.

[0011] Preferably, a moving frame is slidably connected above the inside of the movable frame, and a toothed plate is fixedly installed on one side of the moving frame. A rotating gear is fixedly installed on one side of the top of the rotating frame. At the same time, the toothed plate is meshed with the rotating gear. Moreover, the axis of the rotating gear and the fixed rod are on the same straight line. An installation frame is fixedly installed on one side of the support plate, and a guide plate is fixedly installed on the top of the guide plate. A guide groove is penetrated and opened on the top of the guide plate. At the same time, a column rod is fixedly installed on one side of the bottom of the moving frame, and the column rod is slidably connected with the guide groove.

[0012] By adopting the above technical solution, the spraying pipe can swing reciprocally during the moving process.

[0013] Preferably, the spraying assembly includes positioning rods symmetrically installed on both sides of the movable plate. The two moving plates are respectively slidably connected with two positioning rods on each side. One ends of the two positioning rods far away from the movable plate are fixedly installed with a connecting plate. At the same time, a return spring is sleeved on the outside of the two positioning rods on the side of the connecting plate. The two ends of the return spring are respectively fixedly connected with the connecting plate and the moving plate. At the same time, a moving rod is fixedly installed above the inside of the two moving plates. The inner top of the fixed frame is symmetrically installed with mounting plates. At the same time, a sliding groove is penetrated and opened on one side of each of the two mounting plates, and the moving rod is slidably connected with the sliding groove.

[0014] By adopting the above technical solution, the upward movement of the movable plate can drive the moving rod to move.

[0015] Preferably, two positioning frames are fixedly installed below between the two moving plates. A rotating rod is rotatably connected between the two positioning frames. An installation block is fixedly installed on the outside of one side of the rotating rod. A spraying pipe is fixedly installed inside the installation block. Storage barrels are symmetrically installed on both sides of the fixed frame. Second pumps are symmetrically installed above the inside of the fixed frame. The input pipe of the second pump is connected through a pipeline to penetrate the storage barrel. At the same time, the output end of the second pump is connected through a hose to penetrate the spraying pipe.

[0016] By adopting the above technical solution, the upper die can be sprayed with lubricant.

[0017] Preferably, a torsion spring is sleeved on the outside of the rotating rod above the installation block. The two ends of the torsion spring are respectively fixedly connected with the upper positioning frame and the installation block. The top end of the rotating rod passes through the upper positioning frame and is fixedly installed with a driven gear. At the same time, a positioning plate is fixedly installed on one side of the connecting plate. A plurality of racks are fixedly installed on one side of the positioning plate, and the driven gear is meshed with the rack.

[0018] By adopting the above technical solution, the spraying pipe can swing reciprocally during the moving process.

[0019] Preferably, a fixed ring is fixedly installed at the bottom of the rotating plate, and an annular groove is formed at the top of the workbench. The fixed ring is slidably connected to the annular groove. At the same time, ejector rods are slidably connected inside both lower molds, and the ejector rods are slidably connected to the rotating plate. A top plate is fixedly installed at the top of the ejector rod. A boss is fixedly installed at the top of the workbench on one side of the bottom of the rotating plate, and balls are hinged to the bottom ends of both ejector rods.

[0020] By adopting the above technical solution, it is convenient to take out the component after shaping.

[0021] Preferably, a vertical plate is fixedly installed on one side of the fixed frame at the top of the workbench. An electric push rod is fixedly installed above one side of the vertical plate, and a heating plate is fixedly installed at the movable end of the electric push rod. At the same time, limiting rods are symmetrically installed on one side of the heating plate close to the vertical plate, and both limiting rods are slidably connected to the vertical plate.

[0022] By adopting the above technical solution, it is convenient to heat-treat the component.

[0023] Compared with the prior art, the beneficial effects of the present invention are as follows: For this hot shaping device for metal injection molding, after the metal component is injection molded, it is convenient to perform hot shaping operations on the component, and it is convenient to spray lubricant on the mold during the shaping process of the component, which is convenient for operation, can ensure the continuity of the shaping work, improve work efficiency, reduce the wear of the mold, and enhance practicality. 1. When thermally shaping a metal component, place the component in the lower die at the rear side above the workbench. There are four lower dies circumferentially arranged on the rotating plate. Then start the rotating motor to drive the rotating plate to rotate counterclockwise by a quarter turn, so that the placed component rotates below the upper die, and the lower die for placing the component rotates to the left side above the workbench. Drive the heating plate to move above the component to heat the component through the electric push rod. After heating is completed, reset the heating plate, and drive the movable plate to move downward through the hydraulic cylinder; make the upper die and the lower die close to shape the component. Then reset the upper die, start the rotating motor to drive the rotating plate to rotate by a quarter turn, so that the ejector rod contacts the boss, and the upward movement of the ejector rod drives the upward movement of the top plate to eject the component. At this time, the lower die for placing the component rotates to the front side above the workbench, facilitating the removal of the component. Then the rotating motor can be started to drive the rotating plate to continue rotating by a quarter turn. At this time, the lower die from which the component has just been removed rotates to the right side above the workbench. At this time, the fixed rod moves to the rear opening of the movable groove on the arc-shaped plate. Then make the rotating plate continue to rotate by a quarter turn, start the first pump body to extract the lubricant inside the barrel, and then spray the lubricant through the spraying pipe. The lower part outside the fixed rod abuts against the movable groove. The movable groove is inclined. After the rotating plate rotates, the abutment between the movable groove and the fixed rod can push the fixed rod to move, so that the fixed rod can move closer to the rotating plate. The movable groove can push the fixed rod to move, so that the movable rod slides on the fixed plate and can stretch the telescopic spring, making the rotating frame move. After the rotating frame moves, it can drive the spraying pipe to move, so that the spraying pipe moves to spray the lubricant on the lower die. The four lower dies can perform continuous shaping and spraying operations under the rotation of the rotating plate. The four lower dies rotate by a quarter turn in sequence, so that the lower dies at different positions can continuously spray the lubricant, place the component, shape the component and remove the component, so that the lubricant can be automatically sprayed on each of the four lower dies one by one during the continuous shaping of the component, saving the spraying time and avoiding waste of the lubricant; 2. During the movement of the fixed rod, the connecting frame can drive the movable frame to slide on the support rod, enabling the moving frame to move. During the movement of the moving frame, the column rod slides in the guiding groove. The fixed rod can drive the moving frame to move closer to the rotating plate. The outside of the column rod always abuts against the inside of the guiding groove. During the process of the moving frame driving the column rod to move, the overall shape of the guiding groove is wavy. The moving frame can move left and right on the movable frame. When the moving frame moves, through the abutment between the column rod and the guiding groove, the column rod can be pushed to move reciprocally. Furthermore, through the reciprocating movement of the moving frame, the toothed plate can be driven to move reciprocally. After the toothed plate moves, the rotating gear can be driven to rotate through meshing, driving the rotating frame to swing reciprocally. When the rotating frame moves, it can swing reciprocally, causing the spraying pipe to swing reciprocally during its movement. This can further expand the spraying range of the spraying pipe, and then evenly spray the lubricant on the lower mold, achieving uniform spraying, avoiding uneven spraying thickness of the lubricant, and enhancing the practicality. 3. When spraying the lubricant on the upper mold, after the shaping work is completed and the movable plate is reset, the movable plate can continue to move upward, causing the moving rod to enter the sliding grooves on the two mounting plates. The second pump body is started, causing the lubricant in the storage barrel to be sprayed out through the spraying pipe. Then the movable plate moves upward. At this time, the moving rod abuts against the sliding groove, and the sliding groove is inclined. As the upper part of the movable plate drives the moving rod to move upward, the moving rod can move through its abutment with the sliding groove, causing the two groups of moving rods on both sides of the movable plate to move closer to each other, and the two groups of moving plates on both sides of the movable plate to move closer to each other. The positioning rod is fixed on the movable plate. As the moving plate moves, it drives the spraying pipe to move. The spraying pipe drives the moving plate to move during its movement. The positioning rod only moves up and down with the movable plate. The moving plate slides on the positioning rod for guiding. The connecting plate is fixed on the two positioning rods, enabling the reset spring to be stretched, and causing the rotating rod and the driven gear to rotate. After the driven gear moves, it meshes with the rack to make the rotating rod rotate, thereby driving the spraying pipe to rotate, and causing the torsion spring to deform. After the driven gear moves away from the rack, under the action of the torsion spring, the rotating rod resets, causing the spraying pipe to reset. There are gaps between multiple racks, so that the rotating rod can automatically reset after the driven gear moves away from the rack. Therefore, during the process of driving the spraying pipe to move, the spraying pipe can be made to swing reciprocally, evenly spraying the lubricant on the bottom of the upper mold, ensuring uniform spraying on the upper mold. When spraying the upper mold, only the movable plate needs to be moved upward, which is convenient for operation, improving the work efficiency and practicality. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 It is a schematic diagram of the overall structure of the present invention; Figure 2 It is a schematic diagram of the overall structure of the present invention from another perspective; Figure 3 Schematic diagram of the partial structure of the spraying component of the present invention; Figure 4 Schematic diagram of the cross-sectional structure of the rotating plate of the present invention; Figure 5 Schematic diagram of the structure of the workbench of the present invention; Figure 6 For the present invention Figure 4 Schematic diagram of the enlarged structure of area A in; Figure 7 Schematic diagram of the structure of the support plate of the present invention; Figure 8 Schematic diagram of the structure of the fixing frame of the present invention; Figure 9 Schematic diagram of the partial structure of the spraying component of the present invention; Figure 10 For the present invention Figure 9 Schematic diagram of the enlarged structure of area B in.

[0025] In the figure: 1. Workbench; 101. Support leg; 102. Rotating motor; 103. Rotating plate; 104. Annular groove; 105. Fixed ring; 106. Lower mold; 107. Ejector rod; 108. Top plate; 109. Boss; 110. Fixed frame; 111. Hydraulic cylinder; 112. Movable plate; 113. Guide rod; 114. Upper mold; 115. Vertical plate; 116. Electric push rod; 117. Heating plate; 118. Limit rod; 2. Spraying component; 201. Fixed plate; 202. Movable rod; 203. Fixed rod; 204. Telescopic spring; 205. Fixed block; 206. Rotating frame; 207. Spraying pipe; 208. Barrel; 209. First pump body; 210. Arc plate; 211. Movable groove; 212. Mounting frame; 213. Support plate; 214. Support rod; 215. Movable frame; 216. Moving frame; 217. Connecting frame; 218. Rack; 219. Rotating gear; 220. Guide plate; 221. Guide groove; 222. Column rod; 3. Spraying component; 301. Positioning rod; 302. Moving plate; 303. Connecting plate; 304. Return spring; 305. Mounting plate; 306. Moving rod; 307. Sliding groove; 308. Positioning frame; 309. Rotating rod; 310. Mounting block; 311. Spraying pipe; 312. Storage barrel; 313. Second pump body; 314. Torsion spring; 315. Driven gear; 316. Positioning plate; 317. Rack. Detailed implementation method

[0026] The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the protection scope of the present invention.

[0027] Please refer to Figures 1 - 10 , the present invention provides a technical solution: a hot shaping device for metal injection molding, including a workbench 1, and two groups of support legs 101 are symmetrically installed at the bottom of the workbench 1; It further includes: A rotating motor 102, fixedly installed on one side of the bottom of the workbench 1. The output end of the rotating motor 102 passes through the workbench 1 and is fixedly installed with a rotating plate 103. Four lower molds 106 are equiangularly installed on the top of the rotating plate 103. A fixed frame 110 is fixedly installed on the top of the workbench 1 on one side of the rotating plate 103. A hydraulic cylinder 111 is fixedly installed on the top of the fixed frame 110. The movable end of the hydraulic cylinder 111 passes through the fixed frame 110 and is fixedly installed with a movable plate 112. An upper mold 114 is fixedly installed at the bottom of the movable plate 112. Guide rods 113 are symmetrically installed on the top of the movable plate 112. Both guide rods 113 are slidably connected to the fixed frame 110; A spraying assembly 2, arranged on the top of the workbench 1 and on the outer right side of the rotating plate 103. The spraying assembly 2 includes a fixing plate 201; The fixing plate 201, fixedly installed on one side of the top of the workbench 1 away from the fixed frame 110. Two movable rods 202 are symmetrically and slidably connected inside the fixing plate 201. One ends of the two movable rods 202 are fixedly installed with a fixed rod 203. A telescopic spring 204 is sleeved on the outer side of each of the two movable rods 202. One end of the telescopic spring 204 is fixedly installed with a fixed block 205. The fixed block 205 is fixedly connected to the movable rod 202. The other end of the telescopic spring 204 is fixedly connected to the fixing plate 201; The top of the fixed rod 203 is rotatably connected to a rotating frame 206. A spraying pipe 207 is fixedly installed on one side inside the rotating frame 206. A barrel 208 is fixedly installed on the top of the workbench 1 on one side of the fixing plate 201. A first pump body 209 is fixedly installed on one side of the top of the barrel 208. The input end of the first pump body 209 is connected through a pipeline to penetrate the barrel 208. The output end of the first pump body 209 is connected through a hose to penetrate the spraying pipe 207; On the outer side of the rotating plate 103, two groups of arc-shaped plates 210 are symmetrically installed. Activity grooves 211 are provided at the tops of the two groups of arc-shaped plates 210. The fixed rod 203 is slidably connected to the activity grooves 211. At the same time, an installation frame 212 is fixedly installed above one side of the fixed plate 201. A support plate 213 is fixedly installed on one side of the installation frame 212. A support rod 214 is fixedly installed on one side of the support plate 213. An activity frame 215 is slidably connected to the outer side of the support rod 214. A connection frame 217 is fixedly installed on one side of the activity frame 215. The connection frame 217 is fixedly connected to the fixed rod 203; A fixed ring 105 is fixedly installed at the bottom of the rotating plate 103. An annular groove 104 is provided at the top of the workbench 1. The fixed ring 105 is slidably connected to the annular groove 104. At the same time, ejector rods 107 are slidably connected inside the two lower molds 106. The ejector rods 107 are slidably connected to the rotating plate 103. A top plate 108 is fixedly installed at the top of the ejector rods 107. A boss 109 is fixedly installed on the top of the workbench 1 on one side of the bottom of the rotating plate 103. Ball bearings are hinged to the bottom ends of the two ejector rods 107; A vertical plate 115 is fixedly installed on the top of the workbench 1 on one side of the fixed frame 110. An electric push rod 116 is fixedly installed above one side of the vertical plate 115. A heating plate 117 is fixedly installed at the movable end of the electric push rod 116. Limiting rods 118 are symmetrically installed on one side of the heating plate 117 close to the vertical plate 115. Both of the two limiting rods 118 are slidably connected to the vertical plate 115.

[0028] Example 1: As Figures 1 - 6As shown, when thermally shaping a metal component, the component is placed in the lower mold 106 at the rear side above the workbench. The lower mold 106 is circumferentially arranged on the rotating plate 103 in four. Then, the rotating motor 102 is started to drive the rotating plate 103 to rotate counterclockwise by a quarter turn, so that the placed component rotates below the upper mold 114, and the lower mold 106 placing the component rotates to the left side above the workbench 1. The heating plate 117 is driven by the electric push rod 116 to move above the component to heat the component. After the heating is completed, the heating plate 117 is reset. The movable plate 112 is driven by the hydraulic cylinder 111 to move downward; so that the upper mold 114 and the lower mold 106 are closed to shape the component. Then, the upper mold 114 is reset, and the rotating motor 102 is started to drive the rotating plate 103 to rotate by a quarter turn, so that the ejector rod 107 contacts the boss 109, and the upward movement of the ejector rod 107 drives the top plate 108 to move upward to eject the component. At this time, the lower mold 106 placing the component rotates to the front side above the workbench 1, which is convenient for the component to be taken out. Then, the rotating motor 102 can be started to drive the rotating plate 103 to continue to rotate by a quarter turn. At this time, the lower mold 106 that has just taken out the component rotates to the right side above the workbench 1. At this time, the fixed rod 203 moves to the rear opening of the movable groove 211 on the arc plate 210. Then, the rotating plate 103 continues to rotate by a quarter turn. The first pump body 209 is started to extract the lubricant inside the barrel 208, and then the lubricant is sprayed out through the spraying pipe 207. The lower part outside the fixed rod 203 abuts against the movable groove 211. The movable groove 211 is inclined. After the rotating plate 103 rotates, the abutment between the movable groove 211 and the fixed rod 203 can push the fixed rod 203 to move, so that the fixed rod 203 can move closer to the rotating plate 103. The movable rod 202 can be pushed to slide on the fixed plate 201 through the movable groove 211, and the telescopic spring 204 can be stretched, so that the rotating frame 206 moves. After the rotating frame 206 moves, it can drive the spraying pipe 207 to move, so that the spraying pipe 207 moves to spray lubricant on the lower mold 106. The four lower molds 106 can perform continuous shaping and spraying operations under the rotation of the rotating plate 103. The four lower molds 106 rotate by a quarter turn in sequence, so that the lower molds 106 at different positions can continuously spray lubricant, place components, shape components and take out components, so that the lubricant can be automatically sprayed on the four lower molds 106 one by one during the continuous shaping process of the components, saving spraying time and avoiding waste of lubricant.

[0029] A moving frame 216 is slidably connected above the interior of the movable frame 215. One side of the moving frame 216 is fixedly installed with a toothed plate 218. One side of the top of the rotating frame 206 is fixedly installed with a rotating gear 219. The toothed plate 218 is meshed and connected with the rotating gear 219. The axis of the rotating gear 219 and the fixed rod 203 are on the same straight line. An installation frame 212 is fixedly installed on one side of the support plate 213 with a guide plate 220. A guide groove 221 is formed through the top of the guide plate 220. One side of the bottom of the moving frame 216 is fixedly installed with a column rod 222. The column rod 222 is slidably connected with the guide groove 221.

[0030] Embodiment 2: As Figure 3 and Figure 7 shown, during the movement of the fixed rod 203, the movable frame 215 can be driven by the connecting frame 217 to slide on the support rod 214, so that the moving frame 216 moves. During the movement of the moving frame 216, the column rod 222 is driven to slide in the guide groove 221. The moving frame 216 can be driven by the fixed rod 203 to move closer to the rotating plate 103. The outside of the column rod 222 is always in contact with the inside of the guide groove 221. During the process of the moving frame 216 driving the column rod 222 to move, the overall shape of the guide groove 221 is wavy. The moving frame 216 can move left and right on the movable frame 215. During the movement of the moving frame 216, the column rod 222 is in contact with the guide groove 221 to close, so that the column rod 222 can be pushed to move reciprocally. Furthermore, the reciprocating movement of the moving frame 216 can drive the toothed plate 218 to move reciprocally. After the toothed plate 218 moves, it can drive the rotating frame 206 to swing reciprocally by meshing with the rotating gear 219, so that the rotating frame 206 can swing reciprocally during the movement, and the spraying pipe 207 can swing reciprocally during the movement. Furthermore, the spraying range of the spraying pipe 207 can be further expanded, and the lower die 106 can be evenly sprayed with lubricant, and uniform spraying can be carried out to avoid uneven spraying thickness of the lubricant, improving the practicability.

[0031] The spraying assembly 3 is symmetrically arranged on both sides of the movable plate 112. The spraying assembly 3 includes two moving plates 302; The spraying assembly 3 includes positioning rods 301 symmetrically installed on both sides of the movable plate 112. Two moving plates 302 are respectively slidably connected to two positioning rods 301 on each side. One end of the two positioning rods 301 away from the movable plate 112 is fixedly installed with a connecting plate 303. At the same time, a return spring 304 is sleeved on the outside of the two positioning rods 301 on one side of the connecting plate 303. The two ends of the return spring 304 are respectively fixedly connected to the connecting plate 303 and the moving plate 302. Above the two moving plates 302, a moving rod 306 is fixedly installed. On the inner top of the fixed frame 110, mounting plates 305 are symmetrically installed. At the same time, a sliding groove 307 is formed through one side of the two mounting plates 305. The moving rod 306 is slidably connected to the sliding groove 307; Below the two moving plates 302, two positioning frames 308 are fixedly installed. A rotating rod 309 is rotatably connected between the two positioning frames 308. On the outside of one side of the rotating rod 309, a mounting block 310 is fixedly installed. Inside the mounting block 310, a spraying pipe 311 is fixedly installed. On both sides of the fixed frame 110, storage barrels 312 are symmetrically installed. Above the inner side of the fixed frame 110, second pumps 313 are symmetrically installed. The input pipe of the second pump 313 is connected through a pipeline to the storage barrel 312. At the same time, the output end of the second pump 313 is connected through a hose to the spraying pipe 311; Above the mounting block 310, a torsion spring 314 is sleeved on the outside of the rotating rod 309. The two ends of the torsion spring 314 are respectively fixedly connected to the upper positioning frame 308 and the mounting block 310. The top end of the rotating rod 309 passes through the upper positioning frame 308 and is fixedly installed with a driven gear 315. On one side of the connecting plate 303, a positioning plate 316 is fixedly installed. On one side of the positioning plate 316, a number of racks 317 are fixedly installed. The driven gear 315 is meshed with the racks 317.

[0032] Embodiment Three: As Figure 1 and Figures 8 - 10As shown in the figure, when spraying lubricant on the upper mold 114, after the shaping work is completed and the movable plate 112 is reset, the movable plate 112 can continue to move upward, so that the moving rod 306 enters the sliding grooves 307 on the two mounting plates 305. Then, start the second pump body 313, so that the lubricant inside the storage barrel 312 is sprayed out through the spraying pipe 311. After that, move the movable plate 112 upward. At this time, the moving rod 306 abuts against the sliding groove 307, and the sliding groove 307 is inclined. As the upper part of the movable plate 112 can drive the moving rod 306 to move upward, and the moving rod 306 can move by abutting against the sliding groove 307, the two groups of moving rods 306 on both sides of the movable plate 112 move closer to each other, so that the two groups of moving plates 302 on both sides of the movable plate 112 approach each other. The positioning rod 301 is fixed on the movable plate 112. As the moving plate 302 moves, it can drive the spraying pipe 311 to move. The spraying pipe 311 drives the moving plate 302 to move during the movement. The positioning rod 301 only moves up and down with the movable plate 112. The moving plate 302 slides on the positioning rod 301 for guiding. The connecting plate 303 is fixed on the two positioning rods 301, so that the reset spring 304 can be stretched, and the rotating rod 309 and the driven gear 315 can rotate. After the driven gear 315 moves and meshes with the rack 317, the rotating rod 309 rotates, thereby driving the spraying pipe 311 to rotate, and the torsion spring 314 can be deformed. After the driven gear 315 moves away from the rack 317, under the action of the torsion spring 314, the rotating rod 309 resets, so that the spraying pipe 311 resets. There are gaps between multiple racks 317, so that the rotating rod 309 can automatically reset after the driven gear 315 moves away from the rack 317. Therefore, during the process of driving the spraying pipe 311 to move, the spraying pipe 311 can swing reciprocally, and the bottom of the upper mold 114 can be evenly sprayed with lubricant, ensuring uniform spraying on the upper mold 114. When spraying the upper mold 114, only the movable plate 112 needs to be moved upward, which is convenient for operation and improves work efficiency and practicability.

[0033] Working principle: When using this hot shaping device for metal injection molding, first, according to Figures 1 - 10As shown in the figure, when thermally shaping a metal component, the component is placed in the lower die 106 at the rear side above the workbench. There are four lower dies 106 circumferentially arranged on the rotating plate 103. Then, the rotating motor 102 is started to drive the rotating plate 103 to rotate counterclockwise by a quarter turn, so that the placed component rotates below the upper die 114, and the lower die 106 placing the component rotates to the left side above the workbench 1. The heating plate 117 is driven by the electric push rod 116 to move above the component to heat the component. After the heating is completed, the heating plate 117 is reset. The movable plate 112 is driven by the hydraulic cylinder 111 to move downward; so that the upper die 114 and the lower die 106 are closed to shape the component. Then, the upper die 114 is reset, and the rotating motor 102 is started to drive the rotating plate 103 to rotate by a quarter turn, so that the ejector rod 107 contacts the boss 109, and the upward movement of the ejector rod 107 drives the top plate 108 to move upward to eject the component. At this time, the lower die 106 placing the component rotates to the front side above the workbench 1, which is convenient for the component to be taken out. Then, the rotating motor 102 can be started to drive the rotating plate 103 to continue to rotate by a quarter turn. At this time, the lower die 106 that has just taken out the component rotates to the right side above the workbench 1. At this time, the fixed rod 203 moves to the rear opening of the movable groove 211 on the arc plate 210. Then, the rotating plate 103 is made to continue to rotate by a quarter turn. The first pump body 209 is started to extract the lubricant inside the barrel 208, and then the lubricant is sprayed out through the spraying pipe 207. The lower part outside the fixed rod 203 abuts against the movable groove 211. The movable groove 211 is inclined. After the rotating plate 103 rotates, the abutment between the movable groove 211 and the fixed rod 203 can push the fixed rod 203 to move, so that the fixed rod 203 can move closer to the rotating plate 103. The movable groove 211 can push the fixed rod 203 to move, so that the movable rod 202 slides on the fixed plate 201 and can stretch the telescopic spring 204, so that the rotating frame 206 moves. After the rotating frame 206 moves, it can drive the spraying pipe 207 to move, so that the spraying pipe 207 moves to spray lubricant on the lower die 106. The four lower dies 106 can perform continuous shaping and spraying operations under the rotation of the rotating plate 103; During the movement of the fixed rod 203, it can drive the movable frame 215 to slide on the support rod 214 through the connecting frame 217, causing the movable frame 216 to move. During the movement of the movable frame 216, it drives the column rod 222 to slide in the guide groove 221. The fixed rod 203 can drive the movable frame 216 to move closer to the rotating plate 103. The outside of the column rod 222 is always in contact with the inside of the guide groove 221. During the process of the movable frame 216 driving the column rod 222 to move, the overall shape of the guide groove 221 is wavy. The movable frame 216 can move left and right on the movable frame 215. During the movement of the movable frame 216, through the contact between the column rod 222 and the guide groove 221, the column rod 222 can be pushed to move reciprocally. Furthermore, through the reciprocating movement of the movable frame 216, the toothed plate 218 can be driven to move reciprocally. After the toothed plate 218 moves, it can drive the rotating frame 206 to swing reciprocally by meshing with the rotating gear 219, enabling the rotating frame 206 to swing reciprocally during its movement, and causing the spraying pipe 207 to swing reciprocally during its movement. When spraying lubricant on the upper mold 114, after the shaping work is completed and the movable plate 112 is reset, the movable plate 112 can continue to move upward, causing the moving rod 306 to enter the sliding grooves 307 on the two mounting plates 305. The second pump body 313 is started, causing the lubricant inside the storage barrel 312 to be sprayed out through the spraying pipe 311. Then, the movable plate 112 moves upward. At this time, the moving rod 306 is in contact with the sliding groove 307, and the sliding groove 307 is inclined. As the upper part of the movable plate 112 can drive the moving rod 306 to move upward, the moving rod 306 can move by contacting the sliding groove 307, causing the two groups of moving rods 306 on both sides of the movable plate 112 to move closer to each other, and causing the two groups of moving plates 302 on both sides of the movable plate 112 to move closer to each other. The positioning rod 301 is fixed on the movable plate 112. As the moving plate 302 moves, it can drive the spraying pipe 311 to move. The spraying pipe 311 drives the moving plate 302 to move during its movement. The positioning rod 301 only moves up and down with the movable plate 112. The moving plate 302 slides on the positioning rod 301 for guiding. The connecting plate 303 is fixed on the two positioning rods 301, enabling the reset spring 304 to be stretched and causing the rotating rod 309 and the driven gear 315 to rotate. After the driven gear 315 moves and meshes with the rack 317, the rotating rod 309 rotates, thereby driving the spraying pipe 311 to rotate, and causing the torsion spring 314 to deform. After the driven gear 315 moves away from the rack 317, under the action of the torsion spring 314, the rotating rod 309 is reset, causing the spraying pipe 311 to be reset. There are gaps between multiple racks 317, enabling the rotating rod 309 to automatically reset after the driven gear 315 moves away from the rack 317. Therefore, during the process of driving the spraying pipe 311 to move, the spraying pipe 311 can swing reciprocally, and the bottom of the upper mold 114 can be evenly sprayed with lubricant.

[0034] The content not described in detail in this specification belongs to the prior art well-known to those skilled in the art.

[0035] Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments, or perform equivalent replacements for some of the technical features. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention shall be included within the protection scope of the present invention.

Claims

1. A heat shaping device for metal injection molding, comprising a workbench (1), wherein two sets of supporting legs (101) are symmetrically mounted on the bottom of the workbench (1); It is characterized in that Also includes: A rotating motor (102) is fixedly mounted on one side of the bottom of the workbench (1); an output end of the rotating motor (102) passes through the workbench (1) and is fixedly mounted with a rotating plate (103); four lower molds (106) are mounted at equal angles on the top of the rotating plate (103); a fixed frame (110) is fixedly mounted on the top of the workbench (1) and located on one side of the rotating plate (103); a hydraulic cylinder (111) is fixedly mounted on the top of the fixed frame (110); a movable end of the hydraulic cylinder (111) passes through the fixed frame (110) and is fixedly mounted with a movable plate (112); an upper mold (114) is fixedly mounted on the bottom of the movable plate (112); guide rods (113) are symmetrically mounted on the top of the movable plate (112); and two guide rods (113) are slidably connected to the fixed frame (110); A spraying assembly (2) is arranged on the top of the workbench (1) and is located on the right side outside the rotating plate (103), and the spraying assembly (2) comprises a fixed plate (201); A spraying assembly (3) is symmetrically arranged on both sides of the movable plate (112), wherein the spraying assembly (3) comprises two movable plates (302); A fixed plate (201) is fixedly mounted on a side of the top of the workbench (1) away from the fixed frame (110), wherein the fixed plate (201) is symmetrically slidably connected to movable rods (202) inside, and one end of the two movable rods (202) is fixedly mounted with fixed rods (203), and one side of the outside of the two movable rods (202) is sleeved with telescopic springs (204), and one end of the telescopic spring (204) is fixedly mounted with a fixed block (205), and the fixed block (205) is fixedly connected to the movable rod (202), and the other end of the telescopic spring (204) is fixedly connected to the fixed plate (201); Two positioning frames (308) are fixedly installed below the two movable plates (302), and a rotating rod (309) is rotatably connected between the two positioning frames (308), and a mounting block (310) is fixedly installed on one side of the outside of the rotating rod (309), and a spray pipe (311) is fixedly installed inside the mounting block (310), and storage barrels (312) are symmetrically installed on both sides of the fixed frame (110), and a second pump body (313) is symmetrically installed on the upper side of the inner side of the fixed frame (110), and the input pipe of the second pump body (313) is connected to the storage barrel (312) through a pipeline, and the output end of the second pump body (313) is connected to the spray pipe (311) through a hose.

2. A heat shaping device for metal injection molding according to claim 1, characterized in that: The top of the fixed rod (203) is rotatably connected to a rotating frame (206), and a spray pipe (207) is fixedly installed on one side of the interior of the rotating frame (206), and a barrel body (208) is fixedly installed on the top of the workbench (1) and located on one side of the fixed plate (201), and a first pump body (209) is fixedly installed on one side of the top of the barrel body (208), and an input end of the first pump body (209) is connected to the barrel body (208) through a pipeline, and an output end of the first pump body (209) is connected to the spray pipe (207) through a hose.

3. A heat shaping device for metal injection molding according to claim 2, characterized in that: Two groups of arc-shaped plates (210) are symmetrically mounted on the outer side of the rotating plate (103), and movable grooves (211) are provided on the tops of the two groups of arc-shaped plates (210), and the fixed rod (203) is slidably connected to the movable grooves (211), and a mounting frame (212) is fixedly mounted on one side of the fixed plate (201), and a support plate (213) is fixedly mounted on one side of the mounting frame (212), and a support rod (214) is fixedly mounted on one side of the support plate (213), and a movable frame (215) is slidably connected to the outer side of the support rod (214), and a connecting frame (217) is fixedly mounted on one side of the movable frame (215), and the connecting frame (217) is fixedly connected to the fixed rod (203).

4. A heat shaping device for metal injection molding according to claim 3, characterized in that: A movable frame (216) is slidably connected to the upper part of the movable frame (215), and a tooth plate (218) is fixedly installed on one side of the movable frame (216), and a rotating gear (219) is fixedly installed on one side of the top of the rotating frame (206), and the tooth plate (218) is meshingly connected with the rotating gear (219), and the rotating gear (219) and the axis of the fixed rod (203) are on the same straight line, and a guide plate (220) is fixedly installed on one side of the supporting plate (213) of the mounting frame (212), and a guide groove (221) is penetrated through the top of the guide plate (220), and a column rod (222) is fixedly installed on one side of the bottom of the movable frame (216), and the column rod (222) is slidably connected to the guide groove (221).

5. The heat shaping device for metal injection molding according to claim 1, characterized in that: The spraying assembly (3) comprises two groups of positioning rods (301) symmetrically mounted on both sides of the movable plate (112), and the two movable plates (302) are respectively slidably connected to the two positioning rods (301) on each side, and a connecting plate (303) is fixedly mounted on one end of the two positioning rods (301) away from the movable plate (112), and a return spring (304) is sleeved on one side of the connecting plate (303) outside the two positioning rods (301), and the two ends of the return spring (304) are respectively fixedly connected to the connecting plate (303) and the movable plate (302), and a moving rod (306) is fixedly mounted on the upper part of the inside of the two movable plates (302), and a mounting plate (305) is symmetrically mounted on the inner top of the fixed frame (110), and a sliding groove (307) is penetrated through one side of the two mounting plates (305), and the moving rod (306) is slidably connected to the sliding groove (307).

6. A heat shaping device for metal injection molding according to claim 5, characterized in that: The outside of the rotating rod (309) is located above the mounting block (310) and is sleeved with a torsion spring (314), and the two ends of the torsion spring (314) are respectively fixedly connected to the upper positioning frame (308) and the mounting block (310), and the top end of the rotating rod (309) passes through the upper positioning frame (308) and is fixedly installed with a driven gear (315), and a positioning plate (316) is fixedly installed on one side of the connecting plate (303), and a plurality of racks (317) are fixedly installed on one side of the positioning plate (316), and the driven gear (315) is meshingly connected with the rack (317).

7. The heat shaping device for metal injection molding according to claim 1, characterized in that: A fixing ring (105) is fixedly installed at the bottom of the rotating plate (103), and an annular groove (104) is opened at the top of the workbench (1), and the fixing ring (105) is slidably connected to the annular groove (104), and at the same time, the insides of the two groups of lower molds (106) are slidably connected with a push rod (107), and the push rod (107) is slidably connected to the rotating plate (103), and a top plate (108) is fixedly installed on the top of the push rod (107); and a boss (109) is fixedly installed on one side of the bottom of the rotating plate (103) at the top of the workbench (1), and the bottom ends of the two groups of push rods (107) are hinged with balls.

8. The heat shaping device for metal injection molding according to claim 1, characterized in that: A vertical plate (115) is fixedly mounted on the top of the workbench (1) on one side of the fixed frame (110), and an electric push rod (116) is fixedly mounted above one side of the vertical plate (115), and a heating plate (117) is fixedly mounted on the movable end of the electric push rod (116), and limiting rods (118) are symmetrically mounted on one side of the heating plate (117) close to the vertical plate (115), and both of the limiting rods (118) are slidably connected to the vertical plate (115).

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