Sprue inner material shearing type mechanical arm for injection molding machine

Abstract

The invention relates to the technical field of mechanical arms for injection molding, in particular to a sprue inner material shearing type mechanical arm for an injection molding machine. Comprising a screw extruder, a shaping mechanism, clamping and shearing mechanisms and a guiding and recycling mechanism, the shaping mechanism is movably installed on the right side of the upper surface of the screw extruder, the clamping and shearing mechanisms are arranged at the two ends of the surface of the shaping mechanism, and the guiding and recycling mechanism is movably installed on the lower surface of the shaping mechanism; the clamping and shearing mechanism comprises clamping blocks, a clamping piece is mounted on the surface of the clamping block on one side, and when the screw extruder is correspondingly communicated with the fixed mold, an injection molding preparation is injected into cavities of the fixed mold and the movable mold, so that the cavities of the fixed mold and the movable mold are cooled to form an injection molding product. And the arranged clamping piece can be used for positioning and clamping waste generated at the center position of the surface of the injection molding product and a sprue, the stability of the shearing blade in the process of shearing the sprue waste of the injection molding product is improved, and the waste is conveniently recycled after being sheared by the shearing blade subsequently.

Description

Technical Field

[0001] The invention relates to the technical field of mechanical arms for injection molding, in particular to an in-gate shearing type mechanical arm for an injection molding machine. Background Art

[0002] With the rapid development of the injection molding industry, the production efficiency and product quality of injection molded products have become an important focus of enterprises. In the process of injection molding, the design and processing of the gate directly affects the appearance quality, post-processing cost and overall production efficiency of the product. In the production process of traditional injection molds, the gate often needs to be manually cut or trimmed, which not only increases labor costs, but also may cause uneven product appearance, increase scrap rate, and affect the automation level of the production line.

[0003] Currently, the existing methods of shearing materials in the gate of injection molding machines mainly include manual shearing, shearing in the mold, hot runner shearing and laser shearing, but all of them have specific problems, such as high cost and limited use scenarios. In particular, the surface of the injection molded product needs to be fixed during the gate shearing process, which may cause the shear blade to fail to shear the gate waste completely during the gate shearing process, resulting in defects in the injection molded product.

[0004] Therefore, there is an urgent need for an in-gate shearing type mechanical arm for an injection molding machine to solve the problems of the prior art. Summary of the invention

[0005] The object of the present invention is to provide an in-gate shearing type mechanical arm for an injection molding machine to solve the problems raised in the above-mentioned background technology.

[0006] To achieve the above-mentioned object, the object of the present invention is to provide an in-gate shearing type mechanical arm for an injection molding machine, which is installed on one side of the surface of a screw extruder, and includes a screw extruder, a shaping mechanism, a clamping and shearing mechanism, and a guiding and recovering mechanism. The shaping mechanism is fixedly installed on the right side of the upper surface of the screw extruder, the clamping and shearing mechanism is arranged at both ends of the surface of the shaping mechanism, and the guiding and recovering mechanism is movably installed on the lower surface of the shaping mechanism. The shaping mechanism includes a fixed mold and a movable mold, and the clamping and shearing mechanism includes a clamping block, and a clamping piece is installed on the surface of one side of the clamping block. When the screw extruder is connected to the fixed mold correspondingly, the injection molding agent is injected into the cavity sleeved between the fixed mold and the movable mold, so that the fixed mold The molded product is cooled in the cavity sleeved between the movable mold and the fixed mold, the movable mold and the fixed mold are separated, and the cooled and formed injection molded product is clamped on the surface of the movable mold, a rotating rod is installed on one side of the surface of the movable mold, a sleeve plate is fixedly sleeved on the upper surface of the rotating rod, a clamping block and a clamping piece are arranged on the surface of the sleeve plate, a rotating gear is fixedly sleeved on the bottom surface of the rotating rod, a meshing plate is meshed on the surface of the rotating gear, and the meshing plate is fixedly installed on one side of the surface of the movable mold, the movable mold slides on one side of the surface of the fixed mold, driving the meshing plate to slide and mesh with the rotating gear, so that the clamping block and the clamping piece are synchronously rotated and adjusted with the sleeve plate on the surface of the rotating rod, and the surface of the injection molded product clamped on the surface of the movable mold is clamped.

[0007] As a further improvement of the present technical solution, a fixed mold is installed on the right side of the surface of the screw extruder, a movable mold is slidably sleeved on the right side of the surface of the fixed mold, a push plate is fixedly installed on the right side of the surface of the movable mold, a hydraulic telescopic rod is telescopically sleeved on the right side of the surface of the push plate, a fixed plate is installed on the right side of the surface of the hydraulic telescopic rod, a hydraulic cylinder is arranged on the right side of the surface of the fixed plate, screw rods are installed around the surfaces of the fixed mold, the movable mold and the push plate, and a push block is arranged at the center of the surface of the push plate.

[0008] As a further improvement of the present technical solution, the clamping and shearing mechanism includes a clamping assembly and a shearing assembly, the clamping assembly includes a rotating rod, a sleeve plate is fixedly sleeved on the left side of the upper surface of the rotating rod, a connecting rod is installed on one side of the sleeve plate surface, a clamping block is installed on one side of the connecting rod surface, a clamping part is installed on one side of the clamping block surface, an engaging plate is connected to one side of the movable mold surface, and a rotating gear is fixedly sleeved on the lower surface of the rotating rod.

[0009] As a further improvement of the present technical solution, the shearing assembly includes a mounting block, a connecting plate is installed at the center position of the surface of the mounting block, a shearing blade is arranged at the front end of the connecting plate, a cylinder is installed at one side of the bottom back side of the connecting plate, and the mounting block is installed at the center position of one side of the surface of the sleeve plate.

[0010] As a further improvement of the present technical solution, the guiding recovery mechanism includes a collecting trough, a hydraulic cylinder is provided on the outer surface of the back of the collecting trough, a hydraulic cylinder is connected to one side of the surface of the hydraulic cylinder, a hydraulic telescopic rod is connected to one side of the surface of the hydraulic telescopic rod, a clamp is connected to one side of the surface of the hydraulic telescopic rod, a conveyor belt is installed at the center position inside the collecting trough, clamping plates are installed on both sides of the surface of the conveyor belt, baffles are installed on both sides of the upper surface of the clamping plate, a conveyor belt is connected to one side of the surface of the conveyor belt, a linkage rod is rotatably sleeved on the upper surface of the conveyor belt, driven rods are installed around the outer surface of the linkage rod, a slide groove is opened on the right side of the inner wall of the upper surface of the collecting trough, buffer springs are installed on both sides of the slide groove, an adjustment plate is slidably connected to the surface of the slide groove, a lifting rod is connected to the lower surface of the adjustment plate, and the movable mold slides and is squeezed against the surface of the adjustment plate.

[0011] As a further improvement of the present technical solution, a meshing hole is opened on one side of the meshing plate surface, and one side of the meshing plate surface is fixedly connected to the movable mold, and the meshing plate is synchronously slid left and right on the surface of the screw rod through the movable mold. Since the meshing plate surface and the rotating gear surface are meshed and corresponding, the rotating gear is driven to rotate and adjust on one side of the outer surface of the movable mold.

[0012] As a further improvement of the present technical solution, the rotating gear rotates through the meshing plate, driving the sleeve plate to rotate and adjust, and then the clamping block and the clamping part rotate and adjust synchronously. When the movable mold slides from right to left on the surface of the screw rod, the clamping block and the clamping part rotate toward the outside of the movable mold. When the movable mold slides from left to right on the surface of the screw rod, the clamping block and the clamping part rotate toward the inside of the movable mold to clamp the injection molded product on the surface of the movable mold.

[0013] As a further improvement of the technical solution, the clamping blocks are symmetrically distributed on both sides of the surface of the movable mold, and the clamping piece and the push block surface are correspondingly clamped.

[0014] As a further improvement of the present technical solution, the movable mold slides from left to right on the surface of the screw rod, so that the lower surface of the adjustment plate tilts to the left, and the push block separates the injection molded product from the surface of the movable mold, allowing the injection molded product to be transmitted along the adjustment plate to the surface of the clamping plate on the leftmost side of the upper surface of the conveyor belt. The movable mold slides from right to left on the surface of the screw rod, tilting the lower surface of the adjustment plate to the right, causing the lifting rod to tilt to the upper right and contact the surface of the driven rod, and allowing the driven rod to drive the linkage rod to rotate, and under the transmission action of the conveyor belt, the clamping plate is slid and adjusted on the upper surface of the conveyor belt.

[0015] Compared with the prior art, the present invention has the following beneficial effects: 1. The injection molding machine uses an in-gate shearing type mechanical arm. Through the movable mold, the hydraulic telescopic rod and the pulling force of the screw rod are used to separate the movable mold from the fixed mold, and the product injected inside the fixed mold will be clamped on the surface of the movable mold. When the meshing plate and the rotating gear surface are meshed and contacted, the rotating rod and the sleeve plate can be rotated to both sides of the movable mold surface, so that the clamping block can clamp the surface of the injection molded product. At the same time, the provided clamping parts can position and clamp the center position of the surface of the injection molded product and the waste generated by the gate, thereby improving the stability of the shearing blade in the shearing process of the injection molded product gate waste, which is convenient for the subsequent use of the shearing blade to shear the waste and then recycle it.

[0016] 2. The injection molding machine uses an in-gate shearing type mechanical arm. After the clamping block and the clamping piece clamp the injection molded product and the waste, the connecting plate, the clamping block and the clamping piece are arranged in parallel correspondence, so that the shearing blade can rotate and correspond to the two sides of the waste clamped on the surface of the clamping piece. Since a cylinder is installed on one side of the back of the connecting plate, the electromagnetic valve is used to control the entry and discharge of compressed air to move the piston rod of the cylinder. The piston rod is sleeved and installed inside the connecting plate, and one end of the piston rod is connected to the shearing blade. Therefore, the shearing blade shears the gate waste and is clamped inside the clamping piece to prevent the gate waste from falling into the collection tank, which is convenient for collecting and processing the gate waste.

[0017] 3. The injection molding machine uses a gate shearing type mechanical arm. After cutting off the gate waste of the injection molded product clamped on the surface of the moving mold, the injection molded product is separated from the surface of the moving mold by using a push block. At this time, the lower surface of the moving mold generates a thrust from left to right on the upper surface of the adjustment plate, so that the lower surface of the adjustment plate tilts to the left, and then the injection molded product is transmitted from the surface of the adjustment plate to the surface of the clamping plate installed on the leftmost side of the upper surface of the conveyor belt. On the contrary, when the lower surface of the moving mold generates a thrust from right to left on the upper surface of the adjustment plate, so that the lower surface of the adjustment plate tilts to the right, the lifting rod is lifted upward from left to right and contacts the surface of the driven rod, so that the driven rod drives the linkage rod to rotate to the right. Under the linkage action of the conveyor belt, the conveyor belt is transmitted from left to right, so that the clamping plate on the leftmost side of the upper surface of the conveyor belt moves to the right, which is convenient for the subsequent injection molded product to fall through the adjustment plate. By analogy, when the clamping plates on the upper surface of the conveyor belt are clamped with injection molded products, the two pairs of clamping jaws of the hydraulic telescopic rod are telescopically moved to push the injection molded product to the surface of the slide rail. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the connection structure of the screw extruder and the shaping mechanism of the present invention; Figure 2 It is a schematic diagram of the connection structure between the fixed mold and the movable mold of the present invention; Figure 3 for Figure 2 A schematic diagram of the enlarged structure at A in the middle; Figure 4 It is a schematic diagram of the structure of the clamping and shearing mechanism of the present invention; Figure 5 It is a schematic diagram of the connection structure of the push block, the clamping block and the clamping piece of the present invention; Figure 6 It is a schematic diagram of the connection structure between the meshing plate and the rotating gear of the present invention; Figure 7 It is a structural schematic diagram of the guide recovery mechanism of the present invention; Figure 8 It is a schematic diagram of the connection structure between the movable mold and the collecting tank of the present invention; Fig. 9 It is a schematic diagram of the connection structure of the adjustment plate, the lifting rod and the driven rod of the present invention; Fig.10 It is a schematic diagram of the contact direction of the adjustment plate, lifting rod and driven rod structure of the present invention; The meaning of each number in the figure is: 100. Screw extruder; 200, shaping mechanism; 201, fixed mold; 202, movable mold; 203, push plate; 204, fixed plate; 205, hydraulic cylinder 1; 206, hydraulic telescopic rod 1; 207, screw rod; 208, push block; 300, clamping and shearing mechanism; 301, rotating rod; 302, sleeve plate; 303, connecting rod; 304, clamping block; 305, clamping member; 306, meshing plate; 307, rotating gear; 308, mounting block; 309, cylinder; 310, connecting plate; 311, shearing blade; 400, guide recovery mechanism; 401, hydraulic cylinder 2; 402, hydraulic telescopic rod 2; 403, clamping claw; 404, clamping plate; 405, adjusting plate; 406, collecting trough; 407, lifting rod; 408, conveyor belt; 409, linkage rod; 410, driven rod; 411, conveyor belt; 412, baffle; 413, slide chute; 414, buffer spring. DETAILED DESCRIPTION

[0019] The following will be combined with the accompanying drawings in the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0020] See also Figure 1 , Figure 4 and Figure 8As shown, the purpose of this embodiment is to provide an in-gate shearing type mechanical arm for an injection molding machine, which is installed on one side of the surface of a screw extruder 100, and includes a shaping mechanism 200, a clamping and shearing mechanism 300 and a guiding and recovering mechanism 400. The shaping mechanism 200 is fixedly installed on the right side of the upper surface of the screw extruder 100, the clamping and shearing mechanism 300 is arranged at both ends of the surface of the shaping mechanism 200, and the guiding and recovering mechanism 400 is movably installed on the lower surface of the shaping mechanism 200. The shaping mechanism 200 includes a fixed mold 201 and a movable mold 202, and the clamping and shearing mechanism 300 includes a clamping block 304. A clamping piece 305 is installed on the surface of one side of the clamping block 304. When the screw extruder 100 is connected to the fixed mold 201 correspondingly, the injection molding agent is injected into the cavity sleeved between the fixed mold 201 and the movable mold 202, so that the sleeved cavity between the fixed mold 201 and the movable mold 202 is The molded product is cooled in the cavity to form an injection molded product. The movable mold 202 is separated from the fixed mold 201, and the cooled and molded injection molded product is clamped on the surface of the movable mold 202. A rotating rod 301 is installed on one side of the surface of the movable mold 202. A sleeve plate 302 is fixedly sleeved on the upper surface of the rotating rod 301. A clamping block 304 and a clamping member 305 are arranged on the surface of the sleeve plate 302. A rotating gear 307 is fixedly sleeved on the bottom surface of the rotating rod 301. A meshing plate 306 is meshed on the surface of the rotating gear 307. The meshing plate 306 is fixedly installed on one side of the surface of the movable mold 202. The movable mold 202 slides on one side of the surface of the fixed mold 201, driving the meshing plate 306 to slide and mesh with the rotating gear 307, so that the clamping block 304 and the clamping member 305 are synchronously rotated and adjusted with the sleeve plate 302 on the surface of the rotating rod 301, and the surface of the injection molded product clamped on the surface of the movable mold 202 is clamped. By separating the injection molded product from one side of the fixed mold 201 surface and clamping it on the surface of the movable mold 202 (for clamping the cooled injection molded product on the surface of the movable mold 202, you can refer to the injection molding machine model of Haitian MA3800 / 2250), when the movable mold 202 moves from left to right to the parallel position of the clamping block 304 and the clamping piece 305, the arranged meshing plate 306 and the rotating gear 307 are engaged, driving the rotating rod 301 and the sleeve plate 302 to rotate toward the side of the injection molded product surface, thereby making the clamping block 304 and the clamping piece 305 clamp the surface of the injection molded product, and clamp the gate waste at the center of the surface of the injection molded product. After the gate waste is sheared, the clamping piece 305 can collect and process the gate waste in a centralized manner.

[0021] Therefore, based on the above structure, combined with Figure 1-Figure 2As shown, the structure of the shaping mechanism 200 is further disclosed, a fixed mold 201 is installed on the right side of the surface of the screw extruder 100, a movable mold 202 is slidably sleeved on the right side of the surface of the fixed mold 201, a push plate 203 is fixedly installed on the right side of the surface of the movable mold 202, a hydraulic telescopic rod 206 is telescopically sleeved on the right side of the surface of the push plate 203, a fixed plate 204 is installed on the right side of the surface of the hydraulic telescopic rod 206, a hydraulic cylinder 205 is arranged on the right side of the surface of the fixed plate 204, screw rods 207 are installed around the surfaces of the fixed mold 201, the movable mold 202 and the push plate 203, and a push block 208 is arranged at the center of the surface of the push plate 203; First, the hydraulic cylinder 205 is operated to allow the hydraulic telescopic rod 206 to generate thrust on the push plate 203 and the movable mold 202, and under the directional transmission effect of the screw 207, the movable mold 202 and the fixed mold 201 are sleeved, and the injection molding agent is transmitted to the fixed mold 201 by the screw extruder 100. The injection molding agent forms an injection molded product inside the movable mold 202 and the fixed mold 201, and after cooling for a period of time, the movable mold 202 and the fixed mold 201 are separated, and the cooled and formed injection molded product is clamped on the surface of the movable mold 202 and slides with the movable mold 202 (generally, when designing the injection mold, it is usually required that the injection molded product stays on one side of the movable mold 202 after the injection mold is separated. This is because a demolding mechanism is often provided on one side of the movable mold 202, which can easily push the injection molded product out of the movable mold 202. This belongs to the prior art and is therefore not described in detail); Based on the above structure, combined with Figure 4-Figure 6 As shown, the structure of the clamping and shearing mechanism 300 is further disclosed. The clamping and shearing mechanism 300 includes a clamping assembly and a shearing assembly. The clamping assembly includes a rotating rod 301. A sleeve plate 302 is fixedly sleeved on the left side of the upper surface of the rotating rod 301. A connecting rod 303 is installed on one side of the sleeve plate 302. A clamping block 304 is installed on one side of the connecting rod 303. A clamping member 305 is installed on one side of the clamping block 304. A meshing plate 306 is connected to one side of the surface of the movable mold 202. A rotating gear 307 is fixedly sleeved on the lower surface of the rotating rod 301. Secondly, when the movable mold 202 slides from left to right, the push plate 203 drives the meshing plate 306 to slide synchronously, so that the meshing plate 306 and the surface of the rotating gear 307 are in sliding contact, so that the rotating gear 307 rotates, and then the rotating rod 301 and the sleeve plate 302 rotate toward both sides of the movable mold 202, so that the clamping block 304 and the clamping member 305 are clamped and clamped to the injection molded product clamped on the surface of the movable mold 202. Since there is a gap between the clamping member 305 and the clamping block 304, it does not affect the subsequent shearing of the waste at the gate position of the injection molded product; On the contrary, when the movable mold 202 slides from right to left, the meshing plate 306 and the rotating gear 307 are in sliding contact, so that the rotating rod 301 and the sleeve plate 302 can rotate toward both sides of the movable mold 202, and then the movable mold 202 continues to be sleeved with the fixed mold 201; The improvement lies in that: when the movable mold 202 slides toward the right side of the surface of the fixed mold 201, the meshing plate 306 produces a clockwise direction on the rotating gear 307, thereby allowing the rotating rod 301 and the sleeve plate 302 to rotate toward the surface of the injection molded product clamped on the surface of the movable mold 202, and the injection molded product is clamped and clamped by the clamping block 304 and the clamping part 305. Conversely, when the movable mold 202 slides toward the left side of the surface of the fixed mold 201, the meshing plate 306 produces a counterclockwise direction on the rotating gear 307, thereby allowing the rotating rod 301 and the sleeve plate 302 to deviate from the surface of the injection molded product clamped on the surface of the movable mold 202, which will not affect the normal process of producing injection molded products by the connection between the movable mold 202 and the fixed mold 201.

[0022] Further, combined with Figure 3 As shown, the shearing assembly includes a mounting block 308, a connecting plate 310 is mounted at the center of the surface of the mounting block 308, a shearing blade 311 is arranged at the front end of the connecting plate 310, a cylinder 309 is mounted at one side of the bottom of the back of the connecting plate 310, and the mounting block 308 is mounted at the center of one side of the surface of the sleeve plate 302; Then, after the injection molded product clamped to the surface of the movable mold 202 is clamped and clamped by the clamping block 304 and the clamping piece 305, the connecting plate 310 is arranged parallel to the surface of the injection molded product, and the shear blades 311 are arranged on both sides of the waste material of the injection molded product gate. Since a cylinder 309 is installed on one side of the back of the connecting plate 310, the electromagnetic valve is used to control the entry and discharge of compressed air to move the piston rod of the cylinder 309. The piston rod is sleeved and installed inside the connecting plate 310, and the piston rod passes through the hole on the connecting plate 310 and is in contact with the shear blades 311. The shear blade 311 is connected, one end of the shear blade 311 is connected to the piston rod through a pin, and the shear blade 311 can rotate up and down around the pin. The compressed air pushes the piston rod of the cylinder 309 to extend. Since the piston rod is hinged with the shear blade 311, the extension movement of the piston rod will be converted into the rotation movement of the shear blade 311, so that the shear blade 311 can shear the gate waste and be clamped inside the clamping member 305 to prevent the gate waste from falling into the collecting tank 406, so as to facilitate the collection and treatment of the gate waste; The improvement is that the connecting plate 310 is parallel to the clamping block 304 and the clamping piece 305. When the clamping block 304 and the clamping piece 305 clamp the injection molded product vertically, the connecting plate 310 is also vertical to the surface of the injection molded product and is closely attached to the surface of the injection molded product. At the same time, the shear blade 311 is arranged to correspond to the gate waste clamped on one side of the surface of the clamping block 304. By compressing the air, the compressed air pushes the piston rod of the cylinder 309 to extend, and the extension of the piston rod The movement will be converted into the rotational movement of the shear blade 311, and the pin shaft will be used to allow the shear blade 311 to hinge up and down, so that the shear blade 311 can shear the gate waste, and finally the sheared gate waste will be clamped inside the clamping block 304. When the connecting plate 310 and the clamping block 304 are separated from the surface of the injection molded product, the gate waste can be taken out of the clamping block 304 to prevent the gate waste from falling into the collecting trough 406 after shearing, which is inconvenient for collecting and processing the gate waste.

[0023] Further, combined with Figure 7-10 As shown, the structure of the guide recovery mechanism 400 is further disclosed. The guide recovery mechanism 400 includes a collection tank 406. A hydraulic cylinder 401 is provided on the outer surface of the back of the collection tank 406. A hydraulic telescopic rod 402 is connected to one side of the surface of the hydraulic cylinder 401. A clamp 403 is connected to one side of the surface of the hydraulic telescopic rod 402. A conveyor belt 411 is installed at the center of the collection tank 406. A clamping plate 404 is installed on both sides of the surface of the conveyor belt 411. A stopper 404 is installed on both sides of the upper surface of the clamping plate 404. Plate 412, one side of the surface of the conveyor belt 411 is connected to the conveyor belt 408, the upper surface of the conveyor belt 408 is rotatably sleeved with a linkage rod 409, and the outer surface of the linkage rod 409 is equipped with a driven rod 410. A slide groove 413 is opened on the right side of the inner wall of the upper surface of the collecting tank 406, and buffer springs 414 are installed on both sides of the slide groove 413. The surface of the slide groove 413 is slidably connected to the adjustment plate 405, and the lower surface of the adjustment plate 405 is connected to the lifting rod 407. The movable mold 202 slides and is pressed against the surface of the adjustment plate 405; Finally, when the movable mold 202 slides from left to right, it contacts and squeezes the surface of the adjustment plate 405, so that the adjustment plate 405 first slides to the right on the surface of the slide groove 413, and then the lower surface of the adjustment plate 405 is lifted to the upper left. At the same time, the injection molded product is separated from the surface of the movable mold 202 by the push block 208, contacts the surface of the adjustment plate 405, and contacts one side of the surface of the baffle 412 when the adjustment plate 405 is tilted, and finally introduced to the surface of the clamping plate 404 on the leftmost side of the upper surface of the conveyor belt 411; When the movable mold 202 slides from right to left, a thrust to the left is generated on the adjustment plate 405. The adjustment plate 405 first slides to the left on the surface of the slide groove 413, and then the lower surface of the adjustment plate 405 tilts to the right, so that the lower surface of the lifting rod 407 is synchronously lifted to the right and contacts the surface of the driven rod 410, and an upward lifting force is generated, so that the linkage rod 409 rotates, and under the linkage action of the conveyor belt 408, the conveyor belt 411 is effectively operated, so that the clamping plate 404 moves on the surface of the conveyor belt 411, and the injection molded products clamped on the surface of the clamping plate 404 are displaced. When the clamping plates 404 on the upper surface of the conveyor belt 411 are clamped with injection molded products, the hydraulic cylinder 401 is started, and the injection molded products are pushed to the outer surface by using the hydraulic telescopic rod 402 and the clamping claw 403; A slider is connected between the adjustment plate 405 and the slide groove 413, and one side of the slider surface is connected to the adjustment plate 405 through a bearing. Therefore, after the adjustment plate 405 and the movable mold 202 are in contact and extruded, the bearing will be used to reset, which is convenient for the movable mold 202 and the adjustment plate 405 to reciprocate and slide left and right on the surface of the slide groove 413 to transfer the injection molded product. The buffer spring 414 plays a reset effect on the adjustment plate 405 after it is squeezed by the movable mold 202. The improvement lies in that the reciprocating motion of the movable mold 202 is used to generate a left and right tilting force on the adjustment plate 405, which, on the one hand, has a directional effect on the transmission of the injection molded products, and on the other hand, the injection molded products on the surface of the clamping plate 404 are orderly transmitted on the surface of the conveyor belt 411, which is convenient for the subsequent introduction of the injection molded products into the surface of the clamping plate 404 in sequence.

[0024] In summary, the working principle of this scheme is as follows: the movable mold 202 is separated from the fixed mold 201 by the pulling force of the hydraulic telescopic rod 206 and the screw 207, and the injection molded product inside the fixed mold 201 is clamped on the surface of the movable mold 202. When the meshing plate 306 and the rotating gear 307 are in meshing contact, the rotating rod 301 and the sleeve plate 302 can be rotated to both sides of the surface of the movable mold 202, so that the clamping block 304 can clamp the surface of the injection molded product. At the same time, the clamping piece 305 can be positioned and clamped to the center position of the surface of the injection molded product and the waste generated by the gate, so that the waste can be sheared by the shear blade 311 and then recycled. After the clamping block 304 and the clamping piece 305 clamp and clamp the injection molded product and the waste, the connecting plate 310, the clamping block 304 and the clamping piece 305 are arranged in parallel, so that the shearing blade 311 can rotate and correspond to the two sides of the waste clamped on the surface of the clamping piece 305. Since the cylinder 309 is installed on one side of the back of the connecting plate 310, the electromagnetic valve is used to control the entry and discharge of compressed air to move the piston rod of the cylinder 309. The piston rod is sleeved and installed inside the connecting plate 310, and one end of the piston rod is connected to the shearing blade 311. Therefore, the shearing blade 311 shears the gate waste and is clamped inside the clamping piece 305 to prevent the gate waste from falling into the collecting tank 406, so as to facilitate the collection and treatment of the gate waste. After the gate waste of the injection molded product clamped on the surface of the movable mold 202 is cut off, the injection molded product is separated from the surface of the movable mold 202 by using the push block 208. At this time, the lower surface of the movable mold 202 generates a thrust from left to right on the upper surface of the adjustment plate 405, so that the lower surface of the adjustment plate 405 tilts to the left, and then the injection molded product is transferred from the surface of the adjustment plate 405 to the surface of the clamping plate 404 installed on the leftmost side of the upper surface of the conveyor belt 411. Conversely, when the lower surface of the movable mold 202 generates a thrust from right to left on the upper surface of the adjustment plate 405, so that the lower surface of the adjustment plate 405 tilts to the right, The lifting rod 407 is lifted upward from left to right and contacts the surface of the driven rod 410, so that the driven rod 410 drives the linkage rod 409 to rotate to the right. Under the linkage action of the conveyor belt 408, the conveyor belt 411 is transmitted from left to right, so that the leftmost clamping plate 404 on the upper surface of the conveyor belt 411 moves to the right, so as to facilitate the subsequent dropping of the injection molded products through the adjustment plate 405. Similarly, when the clamping plates 404 on the upper surface of the conveyor belt 411 are clamped with injection molded products, the hydraulic telescopic rod 402 402 is arranged to telescope the clamping claw 403 to push the injection molded products to the outer surface.

[0025] The above shows and describes the basic principles, main features and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited by the above embodiments. The above embodiments and descriptions are only preferred examples of the present invention and are not intended to limit the present invention. Without departing from the spirit and scope of the present invention, the present invention may have various changes and improvements, which fall within the scope of the present invention. The scope of protection of the present invention is defined by the attached claims and their equivalents.

Claims

1. An in-gate shearing type mechanical arm for an injection molding machine, mounted on one side of a surface of a screw extruder (100), characterized in that: The invention comprises a shaping mechanism (200), a clamping and shearing mechanism (300) and a guiding and recovering mechanism (400), wherein the shaping mechanism (200) is fixedly mounted on the right side of the upper surface of the screw extruder (100), the clamping and shearing mechanism (300) is arranged at both ends of the surface of the shaping mechanism (200), and the guiding and recovering mechanism (400) is movably mounted on the lower surface of the shaping mechanism (200), and the shaping mechanism (200) comprises a fixed mold (201) and a movable mold (202). The clamping and shearing mechanism (300) comprises a clamping block (304), and a clamping member (305) is installed on the surface of one side of the clamping block (304). When the screw extruder (100) is connected to the fixed mold (201) correspondingly, the injection molding agent is injected into the cavity between the fixed mold (201) and the movable mold (202), and the cavity between the fixed mold (201) and the movable mold (202) is cooled to form an injection molded product. 201) is separated, and the injection molded product that has been cooled and formed is clamped on the surface of the movable mold (202), a rotating rod (301) is installed on one side of the surface of the movable mold (202), a sleeve plate (302) is fixedly sleeved on the upper surface of the rotating rod (301), the clamping block (304) and the clamping piece (305) are arranged on the surface of the sleeve plate (302), a rotating gear (307) is fixedly sleeved on the bottom surface of the rotating rod (301), and a meshing gear (307) is meshed on the surface of the rotating gear (307). The meshing plate (306) is fixedly mounted on one side of the surface of the movable mold (202). The movable mold (202) slides on one side of the surface of the fixed mold (201), driving the meshing plate (306) to slide and mesh with the rotating gear (307), so that the clamping block (304) and the clamping member (305) are synchronously rotated and adjusted with the sleeve plate (302) on the surface of the rotating rod (301), thereby clamping the surface of the injection molded product clamped on the surface of the movable mold (202).

2. The gate shearing type mechanical arm for injection molding machine according to claim 1, characterized in that: A fixed mold (201) is installed on the right side of the surface of the screw extruder (100), a movable mold (202) is slidably sleeved on the right side of the surface of the fixed mold (201), a push plate (203) is fixedly installed on the right side of the surface of the movable mold (202), a hydraulic telescopic rod (206) is telescopically sleeved on the right side of the surface of the push plate (203), a fixed plate (204) is installed on the right side of the surface of the hydraulic telescopic rod (206), a hydraulic cylinder (205) is arranged on the right side of the surface of the fixed plate (204), screw rods (207) are installed around the surfaces of the fixed mold (201), the movable mold (202) and the push plate (203), and a push block (208) is arranged at the center of the surface of the push plate (203).

3. The gate shearing type mechanical arm for injection molding machine according to claim 2, characterized in that: The clamping and shearing mechanism (300) comprises a clamping assembly and a shearing assembly, wherein the clamping assembly comprises a rotating rod (301), a sleeve plate (302) is fixedly sleeved on the left side of the upper surface of the rotating rod (301), a connecting rod (303) is installed on one side of the surface of the sleeve plate (302), a clamping block (304) is installed on one side of the surface of the connecting rod (303), a clamping piece (305) is installed on one side of the surface of the clamping block (304), a meshing plate (306) is connected to one side of the surface of the movable mold (202), and a rotating gear (307) is fixedly sleeved on the lower surface of the rotating rod (301).

4. The gate shearing type mechanical arm for injection molding machine according to claim 3, characterized in that: The shearing assembly comprises a mounting block (308), a connecting plate (310) being mounted at a central position on a surface of the mounting block (308), a shearing blade (311) being arranged at a front end of the connecting plate (310), a cylinder (309) being mounted at a bottom side of a back side of the connecting plate (310), and the mounting block (308) being mounted at a central position on a side of a surface of the sleeve plate (302).

5. The gate shearing type mechanical arm for injection molding machine according to claim 2, characterized in that: The guide recovery mechanism (400) comprises a collecting trough (406), a hydraulic cylinder 2 (401) is arranged on the outer surface of the back of the collecting trough (406), a hydraulic telescopic rod 2 (402) is connected to one side of the surface of the hydraulic cylinder 2 (401), a clamping claw (403) is connected to one side of the surface of the hydraulic telescopic rod 2 (402), a conveyor belt (411) is installed at the center position inside the collecting trough (406), a clamping plate (404) is installed on both sides of the surface of the conveyor belt (411), baffles (412) are installed on both sides of the upper surface of the clamping plate (404), and the surface of the conveyor belt (411) is One side of the surface is connected to a transmission belt (408) for transmission, a linkage rod (409) is rotatably sleeved on the upper surface of the transmission belt (408), a driven rod (410) is installed around the outer surface of the linkage rod (409), a slide groove (413) is opened on the right side of the inner wall of the upper surface of the collecting groove (406), buffer springs (414) are installed on both sides of the inner surface of the slide groove (413), an adjustment plate (405) is slidably connected to the surface of the slide groove (413), a lifting rod (407) is connected to the lower surface of the adjustment plate (405), and the movable mold (202) slides and is pressed against the surface of the adjustment plate (405).

6. The gate shearing type mechanical arm for injection molding machine according to claim 3, characterized in that: A meshing hole is provided on one side of the surface of the meshing plate (306). One side of the surface of the meshing plate (306) is fixedly connected to the movable mold (202), and the meshing plate (306) is synchronously slidable left and right on the surface of the screw rod (207) through the movable mold (202). Since the surface of the meshing plate (306) and the surface of the rotating gear (307) are meshed and corresponding, the rotating gear (307) is driven to rotate and adjust on one side of the outer surface of the movable mold (202).

7. The gate shearing type mechanical arm for injection molding machine according to claim 6, characterized in that: The rotating gear (307) meshes and rotates through the meshing plate (306), driving the sleeve plate (302) to rotate and adjust, thereby allowing the clamping block (304) and the clamping piece (305) to rotate and adjust synchronously. When the movable mold (202) slides from right to left on the surface of the screw rod (207), the clamping block (304) and the clamping piece (305) rotate toward the outside of the movable mold (202). When the movable mold (202) slides from left to right on the surface of the screw rod (207), the clamping block (304) and the clamping piece (305) rotate toward the inside of the movable mold (202), thereby clamping the injection molded product on the surface of the movable mold (202).

8. The gate shearing type mechanical arm for injection molding machine according to claim 7, characterized in that: The clamping blocks (304) are symmetrically distributed on both sides of the surface of the movable mold (202), and the clamping piece (305) and the push block (208) are correspondingly clamped on the surface.

9. The gate shearing type mechanical arm for injection molding machine according to claim 5, characterized in that: The movable mold (202) slides from left to right on the surface of the screw rod (207), causing the lower surface of the adjustment plate (405) to tilt to the left. The push block (208) detaches the injection molded product from the surface of the movable mold (202), allowing the injection molded product to be transmitted along the adjustment plate (405) to the surface of the leftmost clamping plate (404) on the upper surface of the conveyor belt (411). The movable mold (202) slides from right to left on the surface of the screw rod (207), causing the lower surface of the adjustment plate (405) to tilt to the right, causing the lifting rod (407) to tilt to the upper right and contact the surface of the driven rod (410), and allowing the driven rod (410) to drive the linkage rod (409) to rotate. Under the transmission action of the conveyor belt (408), the clamping plate (404) is slidably adjusted on the upper surface of the conveyor belt (411).

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