An injection molding device for plastic product processing and its injection molding method

Abstract

The present invention discloses an injection molding device for plastic product processing and an injection molding method thereof, belonging to the technical field of injection molding equipment. The device includes an injection molding component and a base assembly. The injection molding component is installed at the upper end of the base assembly. When adjusting the angle of the injection molding component, first start the first gear on the adjacent side that needs to be adjusted. Drive the second gear to rotate through the first gear, then start the telescopic rod to contract, so that the linkage plate descends, thereby driving the slide plate to descend. Drive the transmission assembly to move downward through the insertion plate, so that the convex teeth are inserted into the internal of the slot, thereby driving the second sprocket to rotate. Drive the two first sprockets to rotate through the chain, so that the threaded sleeve rotates to control the telescopic movement of the screw rod, and the adjustment of one side angle can be completed. The same applies to the other side. When descending, the slide plate slides inside the chute and has the resilience of the spring, which can buffer when the convex teeth are inserted into the slot.

Description

Technical Field

[0001] The present invention belongs to the technical field of injection molding equipment. Specifically, it relates to an injection molding device for plastic product processing and an injection molding method thereof. Background Art

[0002] An injection molding machine, also known as an injection molding press or an injection machine, is the main molding equipment for making various shaped plastic products from thermoplastic or thermosetting plastics using plastic molding dies. It is divided into vertical, horizontal, and all-electric types. The injection molding machine can heat the plastic, apply high pressure to the molten plastic, and eject it to fill the mold cavity.

[0003] Chinese Patent Application No.: 202122343007.1 discloses an injection molding device for plastic product processing. By installing a cylinder body at the bottom of the hopper, a metering cylinder is installed inside the cylinder body, an electronic scale and a blanking plate are installed inside the metering cylinder. When the raw material falls from the hopper into the metering cylinder, the electronic scale measures the raw material in the metering cylinder. When the weight of the raw material reaches the set value, the electromagnetic switch starts the hydraulic rod to contract and pulls the metering cylinder and the baffle to move leftward. The baffle blocks the discharge port of the hopper. The blanking plate at the bottom of the metering cylinder drives the electronic scale to turn over together under the action of the rotating shaft, so that the raw material in the metering cylinder falls into the lower injection cylinder. Then the electromagnetic switch resets and extends the hydraulic rod to drive the metering cylinder and the baffle to reset; realizing the accurate measurement of the raw material and avoiding the waste of the raw material; by installing a discharge pipe on the top surface of the hopper, the discharge pipe is connected to a suction pump, the suction pump is connected to a suction pipe, and the suction pipe is connected to a storage box. Turning on the suction pump can transport the raw material in the storage box to the hopper, achieving the effect of automatic feeding, reducing the manual feeding burden, and improving the feeding efficiency.

[0004] The above technical solution still has the following defects: When injecting into the mold, the height and angle of the injection molding device cannot be adjusted. Therefore, injection molding will become difficult in some complex environments. Summary of the Invention

[0005] Aiming at the problem that the height and angle of the injection molding device cannot be adjusted when injecting into the mold, and thus injection molding will become difficult in some complex environments, the present invention provides an injection molding device for plastic product processing and an injection molding method thereof. The device includes an injection molding component and a base assembly. The injection molding component is installed at the upper end of the base assembly. The combined use of these components can effectively solve the above problems.

[0006] To solve the above problems, the present invention adopts the following technical solutions.

[0007] An injection molding device for plastic product processing includes an injection molding component and a base assembly. The injection molding component is installed at the upper end of the base assembly.

[0008] Specifically, injection molding can be carried out into the mold through the injection molding component, and the base assembly can be used to adjust the tilt angle of the injection molding component to adapt to work in different environments.

[0009] Further, the injection molding component includes a mounting plate. One side of the upper end of the mounting plate is movably installed with an injection barrel. A screw rod is arranged inside the injection barrel. One side of the screw rod is fixedly connected to the rotating end of a first motor. A feed inlet is arranged near the upper end of the first motor at the upper end of the injection barrel. A cover plate is rotatably connected at the opening of the feed inlet. A steel rope is movably connected to the outer wall of the cover plate. A head is arranged at the outlet end of the injection barrel. A torsion spring shaft is fixedly connected to the outer wall of the head, and the torsion spring shaft is rotatably connected to the injection barrel.

[0010] Specifically, raw materials are added into the injection barrel through the feed inlet. The screw rod is driven by the first motor to rotate and push the material out from the outlet of the injection barrel. When the cover plate is opened, the torsion spring shaft covers the head at the outlet of the injection barrel to avoid internal contamination. When the cover plate is closed, the head is pulled open by the steel rope.

[0011] Further, the base assembly includes a support assembly and an adjustment assembly. The linkage device is installed on both sides of the injection molding component. The adjustment assembly is installed at the center of the support assembly. A transmission assembly is rotatably connected to the two linkage devices on both sides.

[0012] Specifically, the injection molding component is supported by the support assembly. The adjustment assembly is used to adjust the combination or disconnection of the transmission assembly and the linkage device to control the adjustment angle.

[0013] Further, the support assembly includes a bottom plate. First sprockets are rotatably connected to the four corners of the bottom plate. A threaded sleeve is fixedly connected to the upper end of each first sprocket. A screw rod is threadedly connected inside each threaded sleeve. A rotating shaft is fixedly connected to the top of each screw rod. Chains are sleeved on the outer walls of the first sprockets on the left and right sides of the bottom plate.

[0014] Specifically, the rotation of the threaded sleeve can electrically raise the screw rod inside the threaded sleeve. The rotating shaft is rotatably connected to the bottom of the mounting plate.

[0015] Further, the adjustment assembly includes a linkage plate. Symmetrical chutes are arranged on both sides of the linkage plate. Symmetrical sliding plates are slidably connected inside the two chutes. Springs are fixedly connected between the upper ends of the two sliding plates and the inner top of the chutes. Plug plates are fixedly connected to the ends of the two sliding plates. Second motors are movably installed at positions near the plug plates at the upper ends of the two sliding plates. The rotating ends of the two second motors are fixedly connected with first gears. The telescopic end of a telescopic rod is movably connected to the bottom of the linkage plate.

[0016] Specifically, the telescopic rod can drive the linkage plate to extend. The cooperation of the telescopic movement of the second motor and the telescopic rod can be used to adjust the angle of the injection molding component.

[0017] Further, the linkage device includes a second sprocket, the upper end of the second sprocket is fixedly connected with a convex column, a sleeve column is arranged at the upper end of the convex column, the diameter of the sleeve column is smaller than that of the convex column, and a plurality of slots are arranged between the convex column and the sleeve column.

[0018] The second sprocket is meshed with the chain, the sleeve column is used for installing the transmission assembly, and the transmission assembly can be engaged through the slots, so as to complete power transmission.

[0019] Further, the transmission assembly includes a second gear, the inside of the second gear is hollow and the bottom is fixedly connected with a convex tube, the bottom of the convex tube is fixedly connected with a plurality of convex teeth, and a convex tube is arranged on the outer wall of the convex tube.

[0020] Specifically, the hollow part of the second gear is sleeved on the outer wall of the sleeve column, and power transmission is realized by inserting the convex teeth into the slots.

[0021] Further, the hollow part of the second gear is sleeved on the outer wall of the sleeve column, and the second gear is meshed with the first gear.

[0022] Further, the insertion plate is inserted into the inside of the rotating groove, and the rotating shaft is rotatably connected to the bottom of the mounting plate.

[0023] The injection molding method of this injection molding device is as follows:

[0024] S1. First, open the cover plate, and rotate the head along the torsion spring shaft outward by relaxing the steel wire rope to open the outlet end of the injection barrel, and put the raw material into the inside of the feed port;

[0025] S2. Close the cover plate, and drive the torsion spring shaft to rotate and expand outward by tightening the steel wire rope;

[0026] S3. Start the first motor to drive the auger rod inside the injection barrel to rotate and push the raw material towards the outlet of the injection barrel.

[0027] Beneficial effects

[0028] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0029] (1) In the present invention, when adjusting the angle of the injection molding assembly, first start the first gear on the adjacent side that needs to be adjusted. Drive the second gear to rotate by the first gear, then start the telescopic rod to contract, so that the linkage plate is lowered and drives the sliding plate to lower. Drive the transmission assembly to move downward through the insertion plate so that the convex teeth are inserted into the slots, thereby driving the second sprocket to rotate. Drive the two first sprockets on both sides to rotate through the chain, so that the threaded sleeve rotates to control the expansion and contraction of the screw rod, and the adjustment of one side angle can be completed. The same applies to the other side. When descending, the sliding plate slides inside the sliding groove and there is a spring return force, which can buffer when the convex teeth are inserted into the slots.

[0030] (2) In the present invention, when the cover plate is opened, the torsion spring shaft covers the head at the outlet of the injection barrel, which can prevent internal contamination. When the cover plate is closed, the head is pulled open by the steel rope, which can improve the quality of injection molding. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] Figure 1 It is a schematic structural diagram of an injection molding device for plastic product processing in the present invention;

[0032] Figure 2 It is a schematic structural diagram of the injection molding assembly in the present invention;

[0033] Figure 3 It is a schematic enlarged structural diagram at position A in the present invention;

[0034] Figure 4 It is a schematic structural diagram of the base assembly in the present invention;

[0035] Figure 5 It is a schematic structural diagram of the support assembly in the present invention;

[0036] Figure 6 It is a schematic structural diagram of the adjustment assembly in the present invention;

[0037] Figure 7 It is a schematic structural diagram of the linkage device in the present invention;

[0038] Figure 8 It is a schematic structural diagram of the transmission assembly in the present invention.

[0039] The corresponding relationship between the labels of each attached drawing in the figure and the component names is as follows:

[0040] 1. Injection molding assembly; 11. Mounting plate; 12. First motor; 13. Injection barrel; 14. Feed inlet; 15. Cover plate;

[0041] 16. Torsion spring shaft; 17. Head; 18. Steel rope;

[0042] 2. Base assembly; 21. Support assembly; 211. Base plate; 212. Threaded sleeve; 213. Screw; 214. Rotating shaft;

[0043] 215. Chain; 216. First sprocket; 22. Adjustment assembly; 221. Linkage plate; 222. Slide plate; 223. Second motor;

[0044] 224. First gear; 225. Plug plate; 226. Chute; 227. Spring; 228. Telescopic rod; 23. Linkage device;

[0045] 231. Second sprocket; 232. Convex column; 233. Slot; 234. Sleeve column; 24. Transmission assembly; 241. Second gear;

[0046] 242. Rotating groove; 243. Convex tube; 244. Convex tooth. Detailed implementation mode

[0047] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with 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. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0048] Embodiment 1

[0049] As Figure 1 shown, it is a schematic structural diagram of an injection molding device for plastic product processing in a preferred embodiment of the present invention. An injection molding device for plastic product processing and its injection molding method in this embodiment include an injection molding assembly 1 and a base assembly 2, and the injection molding assembly 1 is installed at the upper end of the base assembly 2.

[0050] Specifically, the injection molding assembly 1 can inject into the mold, and the base assembly 2 can be used to adjust the inclination angle of the injection molding assembly 1 to adapt to work in different environments.

[0051] Furthermore, as Figures 2-3 shown, it is a schematic structural diagram of the injection molding assembly in the present invention. The injection molding assembly 1 includes a mounting plate 11. One side of the upper end of the mounting plate 11 is movably installed with an injection barrel 13. A screw rod is arranged inside the injection barrel 13. One side of the screw rod is fixedly connected to the rotating end of a first motor 12. An inlet 14 is arranged at the upper end of the injection barrel 13 near the upper end of the first motor 12. A cover plate 15 is rotatably connected to the opening of the inlet 14. A steel wire rope 18 is movably connected to the outer wall of the cover plate 15. A head 17 is arranged at the outlet end of the injection barrel 13. A torsion spring shaft 16 is fixedly connected to the outer wall of the head 17, and the torsion spring shaft 16 is rotatably connected to the injection barrel 13.

[0052] Specifically, raw materials are added into the injection barrel 13 through the inlet 14. The screw rod is driven by the first motor 12 to rotate and push the material out from the outlet of the injection barrel 13. When the cover plate 15 is opened, the torsion spring shaft 16 covers the head 17 at the outlet of the injection barrel 13, which can prevent internal contamination. When the cover plate 15 is closed, the head 17 is pulled open by the steel wire rope 18.

[0053] Furthermore, as Figure 4As shown, it is a schematic structural diagram of the base assembly in the present invention. The base assembly 2 includes a support assembly 21 and an adjustment assembly 22. The linkage device 23 is installed on both sides of the injection molding assembly 1. The adjustment assembly 22 is installed at the center of the support assembly 21, and a transmission assembly 24 is rotatably connected to the two sides of the linkage device 23.

[0054] Specifically, the injection molding assembly 1 is supported by the support assembly 21, and the adjustment assembly 22 is used to adjust the combination or disconnection of the transmission assembly 24 and the linkage device 23, so as to control the adjustment angle.

[0055] Further, as Figure 5 shown, it is a schematic structural diagram of the support assembly in the present invention. The support assembly 21 includes a base plate 211. Four corners of the base plate 211 are rotatably connected with first sprockets 216. The upper end of each first sprocket 216 is fixedly connected with a threaded sleeve 212. A screw rod 213 is threadedly connected inside each threaded sleeve 212. The top of each screw rod 213 is fixedly connected with a rotating shaft 214. A chain 215 is sleeved on the outer wall of the first sprockets 216 on the left and right sides of the base plate 211.

[0056] Specifically, by rotating the threaded sleeve 212, the electric screw rod 213 can be extended inside the threaded sleeve 212, and the rotating shaft 214 is rotatably connected to the bottom of the mounting plate 11.

[0057] Further, as Figure 6 shown, it is a schematic structural diagram of the adjustment assembly in the present invention. The adjustment assembly 22 includes a linkage plate 221. Symmetrical sliding grooves 226 are arranged on both sides of the linkage plate 221. Symmetrical sliding plates 222 are slidably connected inside the two sliding grooves 226. Springs 227 are fixedly connected between the upper ends of the two sliding plates 222 and the inner top of the sliding grooves 226. Plug plates 225 are fixedly connected to the ends of the two sliding plates 222. Second motors 223 are movably installed at positions close to the plug plates 225 at the upper ends of the two sliding plates 222. First gears 224 are fixedly connected to the rotating ends of the two second motors 223. The bottom of the linkage plate 221 is movably connected to the telescopic end of a telescopic rod 228.

[0058] Specifically, the telescopic rod 228 can drive the linkage plate 221 to extend, and the telescopic cooperation of the second motor 223 and the telescopic rod 228 can be used to adjust the angle of the injection molding assembly 1.

[0059] Further, as Figure 7 shown, it is a schematic structural diagram of the linkage device in the present invention. The linkage device 23 includes a second sprocket 231. The upper end of the second sprocket 231 is fixedly connected with a convex column 232. A sleeve column 234 is arranged at the upper end of the convex column 232. The diameter of the sleeve column 234 is smaller than that of the convex column 232. A plurality of slots 233 are arranged between the convex column 232 and the sleeve column 234.

[0060] It is meshed with the chain 215 through the second sprocket 231, the transmission assembly 24 is installed through the sleeve column 234, and the slot 233 can cooperate with the transmission assembly 24 for meshing, so as to complete power transmission.

[0061] Further, as Figure 8 shown, it is a schematic structural diagram of the transmission assembly in the present invention. The transmission assembly 24 includes a second gear 241. The second gear 241 is hollow inside and fixedly connected with a convex tube 243 at the bottom. A plurality of convex teeth 244 are fixedly connected to the bottom of the convex tube 243, and a convex tube 243 is arranged on the outer wall of the convex tube 243.

[0062] Specifically, the hollow part of the second gear 241 is sleeved on the outer wall of the sleeve column 234, and power transmission is realized by inserting the convex teeth 244 into the inside of the slot 233.

[0063] Further, the hollow part of the second gear 241 is sleeved on the outer wall of the sleeve column 234, and the second gear 241 is meshed with the first gear 224.

[0064] Further, the insertion plate 225 is inserted into the inside of the rotation slot 242, and the rotating shaft 214 is rotatably connected to the bottom of the mounting plate 11.

[0065] The injection molding method of this injection molding device is as follows:

[0066] S1. First, open the cover plate 15, and rotate the head 17 outward along the torsion spring shaft 16 by loosening the steel wire rope 18 to open the outlet end of the injection barrel 13, and put the raw material into the inside of the feed port 14;

[0067] S2. Close the cover plate 15, and drive the torsion spring shaft 16 to rotate and expand outward by tightening the steel wire rope 18;

[0068] S3. Start the first motor 12 to drive the auger rod inside the injection barrel 13 to push the raw material towards the outlet of the injection barrel 13.

[0069] Working principle: When adjusting the angle of the injection molding assembly 1, first start the first gear 224 on the adjacent side that needs to be adjusted. Drive the second gear 241 to rotate through the first gear 224, and then start the telescopic rod 228 to contract, so that the linkage plate 221 descends, driving the slide plate 222 to descend. Drive the transmission assembly 24 to move downward through the insertion plate 225, so that the convex teeth 244 are inserted into the inside of the slot 233, driving the second sprocket 231 to rotate. Rotate the two first sprockets 216 through the chain 215, so that the threaded sleeve 212 rotates to control the expansion and contraction of the screw rod 213, and the adjustment of one side angle can be completed. The same applies to the other side. When descending, the slide plate 222 slides inside the chute 226 and has the resilience of the spring 227, which can buffer when the convex teeth 244 are inserted into the slot 233.

[0070] Embodiment 2

[0071] As Figures 1-8 shown, it is a schematic structural diagram of an injection molding device for plastic product processing according to another preferred embodiment of the present invention. For the injection molding device and its injection molding method of a plastic product processing in this embodiment, on the basis of Embodiment 1, when the cover plate 15 is opened, the torsion spring shaft 16 covers the head 17 at the outlet of the injection barrel 13, which can prevent internal contamination. When the cover plate 15 is closed, the head 17 is pulled open by the steel rope 18, which can improve the quality of injection molding.

[0072] The above content further elaborates on the present invention in combination with specific implementation manners. It cannot be determined that the specific implementation of the present invention is only limited to these descriptions. For those of ordinary skill in the technical field to which the present invention belongs, without departing from the concept of the present invention, several simple deductions or substitutions can still be made, which should all be regarded as belonging to the protection scope determined by the claims submitted for the present invention.

Claims

1. An injection molding device for plastic product processing, characterized in that: It includes an injection molding assembly (1), and a base assembly (2) is installed at the lower end of the injection molding assembly (1). The base assembly (2) includes a support assembly (21), an adjustment assembly (22), a linkage device (23), and a transmission assembly (24). The linkage device (23) is installed on both sides of the injection molding assembly (1). An adjustment assembly (22) is installed at the center of the support assembly (21). A transmission assembly (24) is rotatably connected to the linkage devices (23) on both sides. The support assembly (21) includes a bottom plate (211). First sprockets (216) are rotatably connected to the four corners of the bottom plate (211). A threaded sleeve (212) is fixedly connected to the upper end of each first sprocket (216). A screw rod (213) is threadedly connected inside each threaded sleeve (212). A rotating shaft (214) is fixedly connected to the top of each screw rod (213). Chains (215) are sleeved on the outer walls of the first sprockets (216) on the left and right sides of the bottom plate (211). The adjustment assembly (22) includes a linkage plate (221). Symmetrical chutes (226) are provided on both sides of the linkage plate (221). Symmetrical sliding plates (222) are slidably connected inside the chutes (226) on both sides. Springs (227) are fixedly connected between the upper ends of the sliding plates (222) on both sides and the inner top of the chutes (226), and insertion plates (225) are fixedly connected to the ends of the sliding plates (222) on both sides. Second motors (223) are movably installed at positions near the insertion plates (225) at the upper ends of the sliding plates (222) on both sides. First gears (224) are fixedly connected to the rotating ends of the second motors (223) on both sides. The bottom of the linkage plate (221) is movably connected to the telescopic end of a telescopic rod (228). The linkage device (23) includes a second sprocket (231). A convex column (232) is fixedly connected to the upper end of the second sprocket (231). A sleeve column (234) is provided at the upper end of the convex column (232). The diameter of the sleeve column (234) is smaller than that of the convex column (232). Multiple slots (233) are provided between the convex column (232) and the sleeve column (234). The transmission assembly (24) includes a second gear (241). The second gear (241) is hollow inside and a convex tube (243) is fixedly connected to the bottom. Multiple convex teeth (244) are fixedly connected to the bottom of the convex tube (243). A rotating groove (242) is provided on the outer wall of the convex tube (243).

2. An injection molding device for plastic product processing according to claim 1, characterized in that: The described injection molding assembly (1) includes a mounting plate (11). One side of the upper end of the mounting plate (11) is movably installed with an injection barrel (13). A screw rod is arranged inside the injection barrel (13). One side of the screw rod is fixedly connected to the rotating end of a first motor (12). An inlet (14) is arranged at the upper end of the injection barrel (13) near the upper end of the first motor (12). A cover plate (15) is rotatably connected at the opening of the inlet (14). A steel cable (18) is movably connected to the outer wall of the cover plate (15). A head (17) is arranged at the outlet end of the injection barrel (13). A torsion spring shaft (16) is fixedly connected to the outer wall of the head (17). The torsion spring shaft (16) is rotatably connected to the injection barrel (13).

3. An injection molding device for plastic product processing according to claim 2, characterized in that: The hollow part of the described second gear (241) is sleeved on the outer wall of the sleeve column (234). The second gear (241) is engaged with the first gear (224).

4. An injection molding device for plastic product processing according to claim 3, characterized in that: The described insertion plate (225) is inserted into the inside of the rotating groove (242). The rotating shaft (214) is rotatably connected to the bottom of the mounting plate (11).

5. An injection molding method for an injection molding device according to any one of claims 2 to 4, characterized in that: This method includes the following steps: S1. First, open the cover plate (15) and rotate the head (17) outward along the torsion spring shaft (16) by relaxing the steel cable (18) to open the outlet end of the injection barrel (13), and put the raw material into the inside of the inlet (14). S2. Close the cover plate (15) and make the head (17) drive the torsion spring shaft (16) to rotate and expand outward by tightening the steel cable (18). S3. Start the first motor (12) to drive the screw rod inside the injection barrel (13) to rotate and push the raw material towards the outlet of the injection barrel (13).

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