Injection molding device for ABS (Acrylonitrile Butadiene Styrene) plastic

Abstract

The invention discloses an injection molding device for ABS plastic, and relates to the technical field of plastic injection molding, the injection molding device comprises a base, two sets of stand columns are symmetrically mounted at the top of the base, a fixing plate is fixedly mounted at the top ends of the two sets of stand columns, and an electric push rod is fixedly mounted at the top of the fixing plate; meanwhile, the movable end of the electric push rod penetrates through the fixed plate and is fixedly provided with a movable plate, an upper mold is fixedly installed at the bottom of the movable plate, a lower mold is fixedly installed at the position, below the upper mold, of the top of the base, and the rear side of the lower mold is connected with an injection molding pipe in a penetrating mode; positioning columns are slidably connected into the two positioning blocks, and the two ends of each positioning column are fixedly connected with the fixing plate and the base correspondingly. And after the upper mold is lifted, a release agent can be sprayed to the upper mold and the lower mold, spraying uniformity can be guaranteed, operation of a user is facilitated, the spraying quality is improved, and the injection molding efficiency is improved.

Description

TECHNICAL FIELD

[0001] The application relates to the technical field of plastic injection molding, and particularly relates to an injection molding device for ABS plastic. BACKGROUND

[0002] ABS plastic is a raw material product synthesized by acrylonitrile, butadiene and styrene, and is mostly processed by an injection molding device through an injection molding method.

[0003] An ABS plastic injection molding device with the announcement number CN221136808U is used to spray the coolant in the cooling water tank out through a delivery pipe into a spray head, and then spray the mold to quickly cool the outer surface of the mold. The coolant sprayed on the outer surface of the mold flows into the grid seat and then into the collecting groove of the base. After the water pump is started, the coolant collected in the collecting groove is pumped out through the circulating pipe and then delivered into the mold through the cooling pipe to cool the inside of the mold. The energy-saving and efficient circulating cooling work is formed to ensure the quality and production efficiency of the product and increase the practicality of the device. However, in the actual use, in the process of injecting the plastic, in order to better demold the product after injection, the surface of the upper mold and the lower mold is usually sprayed with a release agent before injection. If the staff directly manually sprays, the spraying is relatively inconvenient, the spraying efficiency is low, and the uniformity of the spraying cannot be guaranteed, which will affect the normal demolding of the subsequent product. In addition, the upper mold and the lower mold cannot be positioned when the molds are closed during the injection molding process. After long-time use, the upper mold will continuously impact the lower mold, which will cause a certain wear and then affect the service life of the mold, and there are certain use defects.

[0004] Therefore, the application provides an injection molding device for ABS plastic to solve the above problems. SUMMARY

[0005] The application aims to provide an injection molding device for ABS plastic to solve the problem that the staff directly manually sprays the surface of the upper mold and the lower mold with a release agent, which is relatively inconvenient, the spraying efficiency is low, and the uniformity of the spraying cannot be guaranteed, which will affect the normal demolding of the subsequent product.

[0006] In order to achieve the above object, the present application provides the following technical scheme: a injection molding device for ABS plastic, comprising a base, the top of the base is symmetrically provided with two groups of stand columns, and the top of the two groups of stand columns is fixedly provided with a fixed plate, and the top of the fixed plate is fixedly provided with an electric push rod, and the movable end of the electric push rod penetrates through the fixed plate and is fixedly provided with a movable plate, and the bottom of the movable plate is fixedly provided with an upper mold, and the top of the base is fixedly provided with a lower mold below the upper mold, and the rear side of the lower mold is penetrated and connected with an injection molding pipe; Further comprising: The positioning block is symmetrically installed on both sides of the movable plate, and the inside of the two groups of positioning blocks is slidably connected with a positioning column, and the two ends of the positioning column are fixedly connected with the fixed plate and the base respectively. The spraying assembly is provided on both sides and the top of the movable plate, and the spraying assembly comprises a fixed block. The positioning assembly is symmetrically provided on the front and rear sides of the movable plate and the lower mold. The fixed block is symmetrically installed on the top of the movable plate, and the inside of each of the two fixed blocks is slidably connected with an L-shaped rod, and one side of the outside of the two L-shaped rods is sleeved with an extension spring, and the two ends of the extension spring are fixedly connected with the fixed block and the L-shaped rod respectively, and the bottom end of the two L-shaped rods is fixedly provided with a mounting plate, and one side of the mounting plate is fixedly provided with a mounting bracket. The movable rod is rotatably connected in the inside of the mounting bracket, the outside of the movable rod is fixedly provided with a swing bracket below, one side of the swing bracket is symmetrically provided with a supporting block, and the inside of the two supporting blocks is fixedly provided with a spraying pipe, one end of the two spraying pipes is penetrated and connected with a flow divider box, the flow divider box is fixedly connected with the swing bracket, one side of the two flow divider boxes is penetrated and connected with a connecting hose, and one end of the two connecting hoses is penetrated and connected with a flow divider pipe, the flow divider pipe is fixedly connected with the base, and one side of the flow divider pipe is penetrated and connected with a liquid inlet pipe.

[0007] Preferably, the top of the movable plate is symmetrically provided with a fixed bracket between the two groups of fixed blocks, the two fixed brackets are rotatably connected with a rotating gear, the bottom of the fixed plate is symmetrically provided with a mounting rod on both sides, one side of the mounting rod is fixedly provided with a toothed plate below, the rotating gear is meshingly connected with the toothed plate, and the top of the movable plate is penetrated and provided with a notch below the two mounting rods.

[0008] By adopting the above technical scheme, the upward movement of the movable plate can drive the rotating gear to rotate.

[0009] Preferably, one side of the rotating gear is fixedly provided with a winding element through a rotating shaft penetrating through one side of the fixed bracket, one side of the outside of the winding element is fixedly provided with a pull rope, one end of the pull rope away from the winding element is fixedly provided with a fixed rod, the fixed rod is fixedly connected with the two L-shaped rods, and the other side of the rotating gear is fixedly provided with a first bevel gear through a rotating shaft penetrating through the other side of the fixed bracket.

[0010] By adopting the technical scheme, the rotation of the rotating gear can pull the L-shaped rod to move.

[0011] Preferably, the top of the movable plate is fixedly provided with a connecting frame on one side of the two first bevel gears, the connecting frame is rotatably connected with a rotating rod inside, one end of the rotating rod is fixedly provided with a second bevel gear, the second bevel gear is meshingly connected with the first bevel gear, and the other end of the rotating rod is rotatably connected with the fixed rod.

[0012] By adopting the technical scheme, the rotation of the rotating gear can drive the rotating rod to rotate.

[0013] Preferably, the rotating rod is symmetrically provided with rotating blocks outside, the two rotating blocks are fixedly provided with a plurality of protrusions outside, one side of the rotating rod is provided with a moving plate, the protrusions abut against the moving plate, the top of the moving plate is symmetrically provided with moving rods, one side of the moving rods outside is slidably connected with connecting blocks, the connecting blocks are fixedly connected with the L-shaped rod, one side of the moving rods outside located at the connecting blocks is sleeved with return springs, and the two ends of the return springs are fixedly connected with the moving rods and the connecting blocks.

[0014] By adopting the technical scheme, the rotation of the rotating rod can drive the movable plate to reciprocate.

[0015] Preferably, one side of the moving plate is symmetrically provided with mounting blocks, the top of the movable rod is fixedly provided with a driven gear, one side of the movable rod outside located below the driven gear is rotatably connected with a limiting frame, the limiting frame is fixedly connected with the mounting plate, two mounting blocks are fixedly provided with a supporting rod between, the supporting rod is slidably connected with a sliding plate outside, and one side of the sliding plate is fixedly provided with a rack, and the driven gear is meshingly connected with the rack.

[0016] By adopting the technical scheme, the movement of the moving plate can drive the movable rod to rotate.

[0017] Preferably, one side of the sliding plate outside is fixedly provided with a guide frame, and the guide frame is fixedly connected with the limiting frame.

[0018] By adopting the technical scheme, the movement of the sliding plate can be guided, and the movement of the mounting plate can drive the sliding plate to move.

[0019] Preferably, the positioning assembly comprises two groups of supporting frames symmetrically mounted on the front and rear sides of the movable plate, the supporting frames are slidably connected with tapered rods inside, the top of the tapered rod is fixedly provided with a limiting block, the front and rear sides of the lower mold are symmetrically provided with two groups of positioning seats, the positioning seats are provided with tapered grooves inside, and the tapered rods are adaptively connected with the tapered grooves.

[0020] By adopting the above technical solution, it is possible to position the upper and lower molds during mold closing.

[0021] Preferably, connecting rods are symmetrically hinged to both sides of the limiting block, and a connecting plate is hinged to the end of the connecting rod away from the limiting block. A damping rod is symmetrically installed on one side of the connecting plate, and a buffer spring is sleeved on the outside of the damping rod. One end of the buffer spring is fixedly connected to the connecting plate, and a support plate is fixedly installed on the ends of the two damping rods and two buffer springs away from the connecting plate. The support plate is fixedly connected to the movable plate.

[0022] By adopting the above technical solution, the closing of the upper and lower molds can be buffered, reducing the impact.

[0023] Compared with the prior art, the beneficial effects of the present invention are: the injection molding device for ABS plastic is provided with spraying components on the top and sides of the movable plate, so that after the upper mold is lifted, the upper mold and the lower mold can be sprayed with release agent, and the spraying can be uniform, which is convenient for the user to operate, improves the quality of spraying, and improves the efficiency of injection molding. 1. Spraying components are installed on the top and sides of the movable plate. During ABS plastic injection molding, the movable plate is moved downward by an electric push rod, causing the upper and lower molds to close. Raw material is injected through the injection tube to complete the injection molding process. When removing the product, the movable plate is lifted by the electric push rod, causing the upper mold to move upward and the product can be removed. The movable plate can then be moved upward further. This upward movement causes the rotating gear to mesh with the toothed plate on the mounting rod, driving the rotating gear to rotate. The rotating gear then drives the winding component to rotate, winding the pull rope. This, in turn, pulls the fixed rod, causing the two L-shaped rods to move and slide on the fixed block. It can also stretch the telescopic spring, thereby bringing the two mounting plates closer together. At this time, the release agent can be introduced into the distribution pipe through the pump body and the liquid inlet pipe. The release agent can then enter the distribution box through the connecting hose and then be sprayed out through the nozzle on the spray pipe, so that the surfaces of the upper mold and the lower mold can be sprayed. As the movable plate moves up, the rotating gear rotates continuously, allowing the two mounting plates to move closer together, and thus the two sets of spray pipes can move closer together, so that the surfaces of the upper mold and the lower mold can be sprayed evenly. Through the spraying component, after the upper mold is lifted, the release agent can be sprayed on the upper mold and the lower mold, ensuring uniform spraying, facilitating operation by the user, improving the spraying quality, and improving the efficiency of injection molding. 2. During the rotation of the rotating gear, the meshing of the first bevel gear and the second bevel gear drives the rotating rod to rotate, causing the two rotating blocks to rotate. After the rotating blocks rotate, the moving plate can be moved by the protrusion pushing it. After the moving plate moves, it can drive the moving rod to slide on the connecting block and compress the return spring. After the protrusion rotates away from the moving plate, the moving plate is reset by the action of the return spring. Thus, the moving plate can move back and forth during the rotation of the rotating gear. After the moving plate moves, it can drive the sliding plate to move back and forth through the support rod. After the sliding plate moves back and forth, it can drive the movable rod to rotate back and forth through the cooperation of the rack and driven gear. The movable rod can drive the swing frame to swing back and forth. During the movement of the movable rod, it can drive the sliding plate to slide on the support rod through the guide frame, so that the swing frame can swing back and forth during the movement. This can further increase the spraying range of the spraying pipe, thereby improving the uniformity of spraying, avoiding affecting the subsequent demolding work, and improving practicality. 3. When the movable plate moves downward to allow the upper mold to insert into the lower mold, the tapered rod descends, allowing it to insert into the tapered groove of the positioning seat. The engagement of the tapered surface of the tapered rod with the tapered groove prevents the movable plate from shifting. After the tapered rod and the tapered groove are in contact, the upper mold is not fully inserted into the lower mold. At this point, the movable plate continues to move downward, causing the tapered rod to move upward. The tapered rod can slide on the support frame, allowing the connecting rod to rotate via the limit block. After the connecting rod rotates, it can push the connecting plate to move, compressing the damping rod and the buffer spring. This buffers the downward movement of the upper mold before the upper and lower molds close, reducing the impact of the upper mold on the lower mold, reducing wear, and increasing service life. Attached Figure Description

[0024] Figure 1 This is a schematic diagram of the overall structure of the present invention; Figure 2 This is a schematic diagram of the overall structure of the invention from another perspective; Figure 3 This is a schematic diagram of the spraying assembly structure of the present invention; Figure 4 This is a schematic diagram of the spraying assembly of the present invention from another perspective; Figure 5 For the present invention Figure 3 Enlarged structural diagram of region A in the middle; Figure 6 For the present invention Figure 3 Enlarged structural diagram of region B in the middle; Figure 7 This is a partial structural diagram of the spraying assembly of the present invention; Figure 8 For the present invention Figure 1 Enlarged structural diagram of region C in the middle; Figure 9Positioning seat profile structure schematic diagram of the application.

[0025] In the figure: 1, base; 101, stand; 102, fixed plate; 103, electric push rod; 104, movable plate; 105, upper mold; 106, lower mold; 107, injection pipe; 108, positioning block; 109, positioning column; 2, spraying assembly; 201, fixed block; 202, L-shaped rod; 203, extension spring; 204, mounting plate; 205, mounting bracket; 2051, movable rod; 206, swing bracket; 207, support block; 208, spraying pipe; 209, shunt box; 210, connecting hose; 211, shunt pipe; 212, fixed bracket; 213, rotating gear; 214, mounting rod; 215, toothed plate; 216, winding piece; 217, pull rope; 218, fixed rod; 219, first bevel gear; 220, connecting bracket; 221, rotating rod; 222, second bevel gear; 223, rotating block; 224, protruding block; 225, moving plate; 226, moving rod; 227, connecting block; 228, return spring; 229, limiting bracket; 230, driven gear; 231, mounting block; 232, support rod; 233, sliding plate; 234, guide bracket; 235, rack; 3, positioning assembly; 301, support bracket; 302, tapered rod; 303, limiting block; 304, positioning seat; 305, tapered groove; 306, connecting rod; 307, connecting plate; 308, damping rod; 309, buffer spring; 310, support plate. DETAILED DESCRIPTION

[0026] The technical solutions in the embodiments of the application will be clearly and completely described below with reference to the drawings in the embodiments of the application. Obviously, the described embodiments are only part of the embodiments of the application, rather than all the embodiments of the application. Based on the embodiments in the application, all other embodiments obtained by a person of ordinary skill in the art without creative work fall within the protection scope of the application.

[0027] Please refer to Figures 1-9 The application provides a technical solution: an injection molding device for ABS plastic, comprising a base 1, two groups of stand columns 101 are symmetrically installed on the top of the base 1, the top ends of the two groups of stand columns 101 are fixedly installed with fixed plates 102, the top of each fixed plate 102 is fixedly installed with an electric push rod 103, the movable end of the electric push rod 103 penetrates through the fixed plate 102 and is fixedly installed with a movable plate 104, the bottom of the movable plate 104 is fixedly installed with an upper mold 105, the top of the base 1 is fixedly installed with a lower mold 106 below the lower mold 105, and the rear side of the lower mold 106 is connected with an injection pipe 107. Further comprising: Positioning blocks 108 are symmetrically installed on both sides of the movable plate 104. Positioning posts 109 are slidably connected inside both sets of positioning blocks 108, and the two ends of the positioning posts 109 are fixedly connected to the fixed plate 102 and the base 1, respectively. The spraying assembly 2 is disposed on both sides and the top of the movable plate 104, and the spraying assembly 2 includes a fixing block 201; Fixed blocks 201 are symmetrically installed on the top of movable plate 104. L-shaped rods 202 are slidably connected inside the two fixed blocks 201 on each side. A telescopic spring 203 is sleeved on one side of the two L-shaped rods 202. The two ends of the telescopic spring 203 are fixedly connected to the fixed blocks 201 and the L-shaped rods 202 respectively. At the same time, a mounting plate 204 is fixedly installed at the bottom of the two L-shaped rods 202. A mounting bracket 205 is fixedly installed on one side of the mounting plate 204. The movable rod 2051 is rotatably connected inside the mounting bracket 205. A swing frame 206 is fixedly installed on the lower outside of the movable rod 2051. Support blocks 207 are symmetrically installed on one side of the swing frame 206. Spray pipes 208 are fixedly installed inside both support blocks 207. One end of each spray pipe 208 is connected to a diversion box 209. The diversion box 209 is fixedly connected to the swing frame 206. A connecting hose 210 is connected to one side of each diversion box 209. A diversion pipe 211 is connected to one end of each connecting hose 210. The diversion pipe 211 is fixedly connected to the base 1. An inlet pipe is connected to one side of the diversion pipe 211. The top of the movable plate 104 is symmetrically equipped with fixing brackets 212 between the two sets of fixing blocks 201, and a rotating gear 213 is rotatably connected between the two fixing brackets 212. The bottom sides of the fixing plate 102 are symmetrically equipped with mounting rods 214, and a toothed plate 215 is fixedly installed below one side of the mounting rod 214. The rotating gear 213 is meshed with the toothed plate 215, and the top of the movable plate 104 is provided with a through notch below the two mounting rods 214. One side of the rotating gear 213 passes through a rotating shaft through a side fixing frame 212 and is fixedly installed with a winding component 216. A pull rope 217 is fixedly installed on the outer side of the winding component 216, and a fixing rod 218 is fixedly installed at the end of the pull rope 217 away from the winding component 216. At the same time, the fixing rod 218 is fixedly connected to two L-shaped rods 202. On the other side of the rotating gear 213, a first bevel gear 219 passes through a rotating shaft through another side fixing frame 212 and is fixedly installed.

[0028] Example 1: As Figures 1-6As shown, the spraying assembly 2 is arranged on the top and both sides of the movable plate 104. When the ABS plastic is injection molded, the movable plate 104 is driven downward by the electric push rod 103, so that the upper mold 105 and the lower mold 106 are combined, the raw material is injected through the injection pipe 107, and the injection molding work can be completed. Then, when the product is taken out, the movable plate 104 is lifted by the electric push rod 103, so that the upper mold 105 moves upward, and the product can be taken out. Then the movable plate 104 can continue to move upward. At this time, the movable plate 104 moves upward and makes the rotating gear 213 engage with the toothed plate 215 on the mounting rod 214, so that the upward movement of the movable plate 104 can drive the rotating gear 213 to rotate. The rotating gear 213 rotates to drive the winding piece 216 to rotate, so that the pull rope 217 can be wound, and the fixed rod 218 can be pulled to move, so that the two L-shaped rods 202 move, the L-shaped rods 202 slide on the fixed block 201, and the extension springs 203 can be stretched, so that the two mounting plates 204 approach each other. At this time, the pump body can be connected to the liquid inlet pipe, and the release agent can be input into the distribution pipe 211, so that the release agent can enter the distribution box 209 through the connecting hose 210, and then be sprayed out through the spray head on the spray pipe 208. The surface of the upper mold 105 and the lower mold 106 can be sprayed, and as the movable plate 104 moves upward, the rotating gear 213 rotates continuously, so that the two mounting plates 204 can approach each other, and the two groups of spray pipes 208 can continuously approach each other, so that the surface of the upper mold 105 and the lower mold 106 can be uniformly sprayed. Through the spraying assembly 2, the upper mold 105 and the lower mold 106 can be sprayed with release agent after the upper mold 105 is lifted, and the uniformity of spraying can be ensured, which is convenient for the user to operate, improves the quality of spraying, and improves the efficiency of injection molding.

[0029] The connecting frame 220 is rotatably connected in the inside of the connecting frame 220, and the second bevel gear 222 is fixedly installed on one end of the rotating rod 221. The second bevel gear 222 is engaged with the first bevel gear 219, and the other end of the rotating rod 221 is rotatably connected with the fixed rod 218. The rotating blocks 223 are symmetrically installed on the outside of the rotating rod 221, and the convex blocks 224 are fixedly installed on the outside of the two rotating blocks 223. The moving plate 225 is arranged on one side of the rotating rod 221, and the convex blocks 224 abut against the moving plate 225. The moving rods 226 are symmetrically installed on the top of the moving plate 225, and the connecting blocks 227 are slidably connected to the outside of one side of the moving rods 226. The connecting blocks 227 are fixedly connected with the L-shaped rods 202, and the reset springs 228 are sleeved on one side of the connecting blocks 227 outside the moving rods 226. The two ends of the reset springs 228 are fixedly connected with the moving rods 226 and the connecting blocks 227, respectively. Mounting blocks 231 are symmetrically mounted on one side of the movable plate 225, and a driven gear 230 is fixedly mounted on the top of the movable rod 2051. A limit frame 229 is rotatably connected to the outside of the movable rod 2051 below the driven gear 230. The limit frame 229 is fixedly connected to the mounting plate 204. A support rod 232 is fixedly mounted between the two mounting blocks 231. A sliding plate 233 is slidably connected to the outside of the support rod 232. A rack 235 is fixedly mounted on one side of the sliding plate 233. The driven gear 230 is meshed with the rack 235. A guide frame 234 is fixedly installed on the outer side of the sliding plate 233, and the guide frame 234 is fixedly connected to the limit frame 229.

[0030] Example 2: Figures 3-4 and Figures 6-7 As shown, during the rotation of the rotating gear 213, the meshing of the first bevel gear 219 and the second bevel gear 222 drives the rotating rod 221 to rotate, causing the two rotating blocks 223 to rotate. After the rotating blocks 223 rotate, they can move by pushing the moving plate 225 with the protrusion 224. After the moving plate 225 moves, it can drive the moving rod 226 to slide on the connecting block 227 and compress the return spring 228. After the protrusion 224 rotates away from the moving plate 225, the moving plate 225 is reset under the action of the return spring 228. Thus, the moving plate 225 can reciprocate during the rotation of the rotating gear 213. After the movement, the sliding plate 233 can be moved back and forth by the support rod 232. After the sliding plate 233 moves back and forth, it can be driven by the rack 235 and the driven gear 230 to rotate the movable rod 2051 back and forth. The movable rod 2051 can drive the swing frame 206 to swing back and forth. During the movement, the movable rod 2051 can drive the sliding plate 233 to slide on the support rod 232 by the guide frame 234, so that the swing frame 206 can swing back and forth during the movement, which can further increase the spraying range of the spraying pipe 208, thereby improving the uniformity of spraying, avoiding affecting the subsequent demolding work, and improving practicality.

[0031] Positioning components 3 are symmetrically arranged on the front and rear sides of the movable plate 104 and the lower mold 106; The positioning component 3 includes two sets of support frames 301 symmetrically installed on the front and rear sides of the movable plate 104, and a tapered rod 302 is slidably connected inside the support frame 301. A limit block 303 is fixedly installed on the top of the tapered rod 302. At the same time, two sets of positioning seats 304 are symmetrically installed on the front and rear sides of the lower mold 106. A tapered groove 305 is opened inside the positioning seat 304, and the tapered rod 302 is adapted to be connected to the tapered groove 305. Connecting rods 306 are symmetrically hinged to both sides of the limiting block 303, and a connecting plate 307 is hinged to the end of the connecting rod 306 away from the limiting block 303. A damping rod 308 is symmetrically installed on one side of the connecting plate 307. A buffer spring 309 is sleeved on the outside of the damping rod 308. One end of the buffer spring 309 is fixedly connected to the connecting plate 307. A support plate 310 is fixedly installed on the ends of the two damping rods 308 and the two buffer springs 309 away from the connecting plate 307. The support plate 310 is fixedly connected to the movable plate 104.

[0032] Example 3: Figures 1-2 and Figures 8-9 As shown, when the movable plate 104 moves downward to allow the upper mold 105 to insert into the lower mold 106, the tapered rod 302 descends, allowing it to be inserted into the tapered groove 305 of the positioning seat 304. The engagement of the tapered surface of the tapered rod 302 with the tapered groove 305 prevents the movable plate 104 from shifting. Even after the tapered rod 302 and the tapered groove 305 are in contact, the upper mold 105 is not fully inserted into the lower mold 106. At this point, the movable plate 104 continues to move downward, causing the tapered rod... When 302 moves upward, the tapered rod 302 can slide on the support frame 301, so that the connecting rod 306 can be rotated through the limit block 303. After the connecting rod 306 rotates, it can push the connecting plate 307 to move, so that the damping rod 308 and the buffer spring 309 can be compressed. In this way, the downward movement of the upper mold 105 can be buffered before the upper mold 105 and the lower mold 106 are closed, reducing the impact of the upper mold 105 on the lower mold 106, reducing wear, and improving service life.

[0033] Working principle: When using this injection molding device for ABS plastic, firstly, according to... Figures 1-9As shown, spraying assembly 2 is arranged on the top and both sides of movable plate 104. When ABS plastic is injection molded, movable plate 104 is driven to move downward by electric push rod 103, so that upper mold 105 and lower mold 106 are combined, raw materials are injected through injection pipe 107, and injection molding work can be completed. When the product is taken out, movable plate 104 is lifted by electric push rod 103, so that upper mold 105 moves upward, the product can be taken out, and then movable plate 104 can continue to move upward. At this time, movable plate 104 moves upward and makes rotating gear 213 mesh with toothed plate 215 on mounting rod 214, so that the upward movement of movable plate 104 can drive rotating gear 213 to rotate. Rotating gear 213 rotates and drives winding member 216 to rotate, so that pull rope 217 can be wound, and then fixed rod 218 can be pulled to move, so that two L-shaped rods 202 move, L-shaped rods 202 slide on fixed block 201, and extension spring 203 can be stretched, so that two mounting plates 204 move close to each other. At this time, pump body connection inlet pipe can input demolding agent into shunt pipe 211, so that demolding agent can enter shunt box 209 through connecting hose 210, and then sprayed through the nozzle on spraying pipe 208, so that the surface of upper mold 105 and lower mold 106 can be sprayed. As movable plate 104 moves upward, rotating gear 213 rotates continuously, so that two mounting plates 204 can move close to each other, and two groups of spraying pipes 208 can continuously move close to each other, so that the surface of upper mold 105 and lower mold 106 can be uniformly sprayed. The rotating gear 213 can drive the rotating rod 221 to rotate through the meshing of the first bevel gear 219 and the second bevel gear 222 in the rotating process, so that the two rotating blocks 223 rotate, and the rotating blocks 223 can drive the moving plate 225 to move through the protruding blocks 224 after rotating, the moving plate 225 can drive the moving rod 226 to slide on the connecting block 227 after moving, and the return spring 228 can be compressed, the moving plate 225 can be reset under the action of the return spring 228 after the protruding blocks 224 rotate away from the moving plate 225, so that the moving plate 225 can reciprocatingly move in the rotating process of the rotating gear 213, the sliding plate 233 can be driven to reciprocatingly move through the support rod 232 after the moving plate 225 moves, the movable rod 2051 can be driven to reciprocatingly rotate through the meshing of the rack 235 and the driven gear 230 after the sliding plate 233 reciprocatingly moves, the swing frame 206 can be driven to reciprocatingly swing through the movable rod 2051, and the sliding plate 233 can be driven to slide on the support rod 232 through the guide frame 234 in the moving process of the movable rod 2051, so that the swing frame 206 can reciprocatingly swing in the moving process, so that the spraying range of the spraying pipe 208 can be further improved, when the movable plate 104 moves downward to make the upper die 105 insert into the lower die 106, the conical rod 302 moves downward, the conical rod 302 can be inserted into the conical groove 305 of the positioning seat 304, the conical surface on the conical rod 302 can cooperate with the conical groove 305 to avoid the movable plate 104 from deviating, and after the conical rod 302 is attached to the conical groove 305, the upper die 105 is not completely inserted into the lower die 106, at this time, the movable plate 104 continues to move downward to make the conical rod 302 move upward, the conical rod 302 can slide on the support frame 301, so that the connecting rod 306 can be driven to rotate through the limiting block 303, the connecting plate 307 can be driven to move after the connecting rod 306 rotates, so that the damping rod 308 and the buffer spring 309 can be compressed, and then the downward movement of the upper die 105 can be buffered before the upper die 105 and the lower die 106 are combined, the impact of the upper die 105 on the lower die 106 is reduced, the abrasion is reduced, and the service life is improved.

[0034] The contents not described in detail in the specification belong to the prior art known to those skilled in the art.

[0035] Although the application has been described in detail with reference to the foregoing embodiments, those skilled in the art can modify the technical solutions recorded in the foregoing embodiments or make equivalent replacements for part of the technical features, any modification, equivalent replacement, improvement, etc. made within the spirit and principles of the application shall be included in the protection scope of the application.

Claims

1. An injection molding device for ABS plastic, comprising a base (1), two sets of columns (101) symmetrically mounted on the top of the base (1), and a fixed plate (102) fixedly mounted on the top of the two sets of columns (101), and an electric push rod (103) fixedly mounted on the top of the fixed plate (102), wherein the movable end of the electric push rod (103) passes through the fixed plate (102) and is fixedly mounted on a movable plate (104), and an upper mold (105) is fixedly mounted on the bottom of the movable plate (104), and a lower mold (106) is fixedly mounted on the top of the base (1) below the upper mold (105), and an injection tube (107) is connected through the rear side of the lower mold (106). Its features are, Also includes: Positioning blocks (108) are symmetrically installed on both sides of the movable plate (104). Positioning columns (109) are slidably connected inside both sets of positioning blocks (108), and the two ends of the positioning columns (109) are fixedly connected to the fixed plate (102) and the base (1) respectively. The spraying assembly (2) is disposed on both sides and top of the movable plate (104), and the spraying assembly (2) includes a fixing block (201). Positioning components (3) are symmetrically arranged on the front and rear sides of the movable plate (104) and the lower mold (106); Fixed blocks (201) are symmetrically installed on the top of the movable plate (104). Each of the two fixed blocks (201) on each side is slidably connected with an L-shaped rod (202). Each of the two L-shaped rods (202) is fitted with a telescopic spring (203) on one side of its exterior. The two ends of the telescopic spring (203) are fixedly connected to the fixed block (201) and the L-shaped rod (202) respectively. At the same time, the bottom ends of the two L-shaped rods (202) are fixedly installed with a mounting plate (204), and a mounting bracket (205) is fixedly installed on one side of the mounting plate (204). The movable rod (2051) is rotatably connected inside the mounting bracket (205). A swing frame (206) is fixedly installed on the lower outside of the movable rod (2051). Support blocks (207) are symmetrically installed on one side of the swing frame (206). Spray tubes (208) are fixedly installed inside both support blocks (207). At the same time, a diversion box (209) is connected through one end of the two spray tubes (208). The diversion box (209) is fixedly connected to the swing frame (206). A connecting hose (210) is connected through one side of both diversion boxes (209). A diversion pipe (211) is connected through one end of the two connecting hoses (210). The diversion pipe (211) is fixedly connected to the base (1). An inlet pipe is connected through one side of the diversion pipe (211).

2. The injection molding apparatus for ABS plastic according to claim 1, characterized in that: The top of the movable plate (104) is symmetrically equipped with a fixing frame (212) between two sets of fixing blocks (201), and a rotating gear (213) is rotatably connected between the two fixing frames (212). The bottom sides of the fixing plate (102) are symmetrically equipped with mounting rods (214), and a toothed plate (215) is fixedly installed below one side of the mounting rod (214). The rotating gear (213) meshes with the toothed plate (215), and the top of the movable plate (104) is provided with a through notch below the two mounting rods (214).

3. The injection molding apparatus for ABS plastic according to claim 2, characterized in that: One side of the rotating gear (213) passes through a rotating shaft through a side fixing frame (212) and is fixedly installed with a winding member (216). A pull rope (217) is fixedly installed on the outer side of the winding member (216), and a fixing rod (218) is fixedly installed at the end of the pull rope (217) away from the winding member (216). At the same time, the fixing rod (218) is fixedly connected to two L-shaped rods (202). The other side of the rotating gear (213) passes through a rotating shaft through another side fixing frame (212) and is fixedly installed with a first bevel gear (219).

4. The injection molding apparatus for ABS plastic according to claim 3, characterized in that: The top of the movable plate (104) is fixedly mounted with a connecting frame (220) on one side of the two first bevel gears (219), and a rotating rod (221) is rotatably connected inside the connecting frame (220). A second bevel gear (222) is fixedly mounted on one end of the rotating rod (221), and the second bevel gear (222) meshes with the first bevel gear (219). The other end of the rotating rod (221) is rotatably connected to the fixed rod (218).

5. An injection molding apparatus for ABS plastic according to claim 4, characterized in that: Rotating blocks (223) are symmetrically installed on the outside of the rotating rod (221), and several protrusions (224) are fixedly installed on the outside of the two rotating blocks (223). A movable plate (225) is provided on one side of the rotating rod (221), and the protrusions (224) abut against the movable plate (225). A movable rod (226) is symmetrically installed on the top of the movable plate (225), and a connecting block (227) is slidably connected to the outside of the movable rod (226). The connecting block (227) is fixedly connected to the L-shaped rod (202). A return spring (228) is sleeved on the outside of the movable rod (226) on one side of the connecting block (227), and the two ends of the return spring (228) are fixedly connected to the movable rod (226) and the connecting block (227) respectively.

6. An injection molding apparatus for ABS plastic according to claim 5, characterized in that: Mounting blocks (231) are symmetrically mounted on one side of the movable plate (225), and a driven gear (230) is fixedly mounted on the top of the movable rod (2051). A limit frame (229) is rotatably connected to the outside of the movable rod (2051) below the driven gear (230). The limit frame (229) is fixedly connected to the mounting plate (204). A support rod (232) is fixedly mounted between the two mounting blocks (231). A sliding plate (233) is slidably connected to the outside of the support rod (232). A rack (235) is fixedly mounted on one side of the sliding plate (233). The driven gear (230) meshes with the rack (235).

7. An injection molding apparatus for ABS plastic according to claim 6, characterized in that: A guide frame (234) is fixedly installed on the outer side of the sliding plate (233), and the guide frame (234) is fixedly connected to the limiting frame (229).

8. An injection molding apparatus for ABS plastic according to claim 1, characterized in that: The positioning component (3) includes two sets of support frames (301) symmetrically installed on the front and rear sides of the movable plate (104), and a tapered rod (302) is slidably connected inside the support frame (301), and a limit block (303) is fixedly installed on the top of the tapered rod (302). At the same time, two sets of positioning seats (304) are symmetrically installed on the front and rear sides of the lower mold (106), and a tapered groove (305) is opened inside the positioning seat (304), and the tapered rod (302) is adapted to the tapered groove (305).

9. An injection molding apparatus for ABS plastic according to claim 8, characterized in that: The limiting block (303) is symmetrically hinged with connecting rods (306) on both sides, and a connecting plate (307) is hinged to one end of the connecting rod (306) away from the limiting block (303). A damping rod (308) is symmetrically installed on one side of the connecting plate (307). A buffer spring (309) is sleeved on the outside of the damping rod (308). One end of the buffer spring (309) is fixedly connected to the connecting plate (307). A support plate (310) is fixedly installed on one end of the two damping rods (308) and the two buffer springs (309) away from the connecting plate (307). The support plate (310) is fixedly connected to the movable plate (104).

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