A mechanical arm with an in-gate shearing mechanism for an injection molding machine

Abstract

The present invention relates to the technical field of robotic arms for injection molding, and specifically, to a robotic arm with in-gate shear for an injection molding machine. It includes a screw extruder, a shaping mechanism, a clamping and shearing mechanism, and a guiding and recycling mechanism. The shaping mechanism is movably installed on the upper right surface of the screw extruder. The clamping and shearing mechanism is arranged at both ends of the surface of the shaping mechanism. The guiding and recycling mechanism is movably installed on the lower surface of the shaping mechanism. The shaping mechanism includes a fixed mold and a movable mold. The clamping and shearing mechanism includes clamping blocks, and a clamping member is installed on the surface of one of the clamping blocks. When the screw extruder corresponds and communicates with the fixed mold, an injection molding agent is injected into the cavities of the fixed mold and the movable mold, so that an injection molded product is formed by cooling in the cavities of the fixed mold and the movable mold. The provided clamping member can position and clamp the waste generated at the center position of the surface of the injection molded product and the gate, improving the stability of the shearing process of the shearing blade for the gate waste of the injection molded product, and facilitating the subsequent recycling process after the waste is sheared by the shearing blade.

Description

Technical Field

[0001] The present invention relates to the technical field of robotic arms for injection molding, and more specifically, to a robotic arm with in-gate shearing 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 important focuses of enterprises' attention. During the injection molding process, the design and treatment of the gate directly affect 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 sheared or trimmed, which not only increases the labor cost but also may lead to uneven product appearance, increased scrap rate, and affects the automation level of the production line.

[0003] Currently, the existing in-gate shearing methods for injection molding machines mainly include manual shearing, in-mold shearing, hot runner shearing, and laser shearing, but they all have specific problems, such as high cost and limited application scenarios. Especially during the gate shearing process, it is necessary to fix the surface of the injection molded product, which is likely to cause incomplete shearing of the gate waste by the shearing blade during the gate shearing process, resulting in defects in the injection molded product.

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

[0005] The purpose of the present invention is to provide a robotic arm with in-gate shearing for an injection molding machine to solve the problems raised in the above background art.

[0006] To achieve the above object, the object of the present invention is to provide a mechanical arm with in-gate shearing 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 recycling mechanism. The shaping mechanism is fixedly installed on the upper right side of the surface of the screw extruder. The clamping and shearing mechanism is arranged at both ends of the surface of the shaping mechanism. The guiding and recycling mechanism is movably installed on the lower surface of the shaping mechanism. The shaping mechanism includes a fixed mold and a movable mold. The clamping and shearing mechanism includes clamping blocks. A clamping member is installed on the surface of one of the clamping blocks. When the screw extruder corresponds and communicates with the fixed mold, an injection molding agent is injected into the cavity sleeved between the fixed mold and the movable mold, so that an injection molded product is formed by cooling in the cavity sleeved between the fixed mold and the movable 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. The clamping blocks and the clamping member 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 engaged with the surface of the rotating gear. 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 engage with the rotating gear, so that the clamping blocks and the clamping member rotate and adjust synchronously with the sleeve plate on the surface of the rotating rod to clamp the surface of the injection molded product clamped on the surface of the movable mold.

[0007] As a further improvement of this 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 first hydraulic telescopic rod is telescopically sleeved on the right side of the surface of the push plate. A fixing plate is installed on the right side of the surface of the first hydraulic telescopic rod. A first hydraulic cylinder is arranged on the right side of the surface of the fixing plate. Threaded rods are installed around the surfaces of the fixed mold, the movable mold, and the push plate. A push block is arranged at the central position of the surface of the push plate.

[0008] As a further improvement of this technical solution, the clamping and shearing mechanism includes a clamping component and a shearing component. The clamping component 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 surface of the sleeve plate. A clamping block is installed on one side of the surface of the connecting rod. A clamping member is installed on the surface of one of the clamping blocks. A meshing plate is connected to one side of the surface of the movable mold. A rotating gear is fixedly sleeved on the lower surface of the rotating rod.

[0009] As a further improvement of this technical solution, the shearing component includes a mounting block. A connecting plate is installed at the central 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 of the back surface of the connecting plate. The mounting block is installed at the central position of one side of the surface of the sleeve plate.

[0010] As a further improvement of the technical solution, the guiding and recycling mechanism includes a collection tank. On the outer surface of the back of the collection tank, a second hydraulic cylinder is provided. On one side of the surface of the second hydraulic cylinder, a second hydraulic telescopic rod is connected. On one side of the surface of the second hydraulic telescopic rod, a clamping jaw is connected. At the central position inside the collection tank, a conveyor belt is installed. On both sides of the surface of the conveyor belt, clamping plates are installed. On both sides of the upper surface of the clamping plates, baffles are installed. On one side of the surface of the conveyor belt, a transmission belt is drivingly connected. On the upper surface of the transmission belt, a linkage rod is rotatably sleeved. Around the outer surface of the linkage rod, driven rods are installed. On the right side of the inner wall of the upper surface of the collection tank, a chute is opened. On both sides inside the chute, buffer springs are installed. On the surface of the chute, an adjusting plate is slidably connected. To the lower surface of the adjusting plate, a lifting rod is connected. The moving mold slides and presses against the surface of the adjusting plate.

[0011] As a further improvement of the technical solution, on one side of the surface of the meshing plate, a toothed hole is opened. One side of the surface of the meshing plate is fixedly connected to the moving mold, and the meshing plate slides left and right on the surface of the lead screw synchronously through the moving mold. Since the surface of the meshing plate and the surface of the rotating gear are meshed correspondingly, the rotating gear is driven to rotate and adjust on one side of the outer surface of the moving mold.

[0012] As a further improvement of the technical solution, the rotating gear rotates through meshing with the meshing plate, driving the sleeve plate to rotate and adjust, and further enabling the clamping block and the clamping part to rotate and adjust synchronously. When the moving mold slides from right to left on the surface of the lead screw, the clamping block and the clamping part rotate outward from the moving mold. When the moving mold slides from left to right on the surface of the lead screw, the clamping block and the clamping part rotate inward from the moving mold to clamp the injection molded product on the surface of the moving mold.

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

[0014] As a further improvement of the technical solution, when the moving mold slides from left to right on the surface of the lead screw, the lower surface of the adjusting plate inclines to the left, and the pushing block disengages the injection molded product from the surface of the moving mold, allowing the injection molded product to be transported along the adjusting plate to the surface of the leftmost clamping plate on the upper surface of the conveyor belt. When the moving mold slides from right to left on the surface of the lead screw, the lower surface of the adjusting plate inclines to the right, causing the lifting rod to incline upward to the right, contact the surface of the driven rod, and the driven rod drives the linkage rod to rotate. Under the driving action of the transmission belt, the clamping plate slides and adjusts on the upper surface of the conveyor belt.

[0015] Compared with the prior art, the beneficial effects of the present invention are:

[0016] 1. The in-gate shearing robotic arm for this injection molding machine, under the pulling force of the hydraulic telescopic rod 1 and the lead screw by the moving mold, separates the inside of the moving mold and the fixed mold, and the product injected inside the fixed mold will be clamped on the surface of the moving mold. When the meshing plate and the rotating gear are in meshing contact, the rotating rod and the sleeve plate can rotate towards both sides of the surface of the moving mold, so that the clamping blocks can clamp the surface of the injection molded product. At the same time, the provided clamping parts can position and clamp the waste generated at the center position of the surface of the injection molded product and the gate, improving the stability of the shearing process of the shearing blade for the gate waste of the injection molded product, and facilitating the subsequent recycling process after the waste is sheared by the shearing blade.

[0017] 2. The in-gate shearing robotic arm for this injection molding machine, after the clamping blocks and the clamping parts clamp the injection molded product and the waste, the provided connecting plate is parallel to the clamping blocks and the clamping parts. Therefore, the shearing blade can rotate and correspond to both sides of the waste clamped on the surface of the clamping part. Since a cylinder is installed on one side of the back of the connecting plate, the solenoid valve controls the entry and discharge of compressed air, causing the piston rod of the cylinder to move. 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 part, preventing the gate waste from falling into the collection tank and facilitating the collection and treatment of the gate waste.

[0018] 3. The in-gate shearing robotic arm for this injection molding machine, after cutting off the gate waste of the injection molded product clamped on the surface of the moving mold, uses the push block to separate the injection molded product from the surface of the moving mold. At this time, the lower surface of the moving mold generates a left-to-right thrust on the upper surface of the adjusting plate, causing the lower surface of the adjusting plate to tilt to the left, so that the injection molded product is transferred from the surface of the adjusting plate to the surface of the clamping plate installed on the leftmost side of the upper surface of the conveyor belt. Conversely, when the lower surface of the moving mold generates a right-to-left thrust on the upper surface of the adjusting plate, the lower surface of the adjusting plate tilts to the right, and at the same time, the lifting rod is lifted upward from left to right and contacts the surface of the driven rod, causing the driven rod to drive the linkage rod to rotate to the right. Under the linkage action of the conveyor belt, the conveyor belt is transferred from left to right, causing the clamping plate on the leftmost side of the upper surface of the conveyor belt to move to the right, facilitating the subsequent dropping of the injection molded product through the adjusting plate. By analogy, when the clamping plates on the upper surface of the conveyor belt are all clamped with injection molded products, the provided hydraulic telescopic rod 2 makes the jaws expand and contract, pushing the injection molded product onto the surface of the slide rail. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a schematic connection structure diagram of the screw extruder and the shaping mechanism of the present invention;

[0020] Figure 2 It is a schematic connection structure diagram of the fixed mold and the moving mold of the present invention;

[0021] Figure 3 For Figure 2Schematic diagram of the enlarged structure at A in the [Chinese context];

[0022] Figure 4 Schematic diagram of the clamping and shearing mechanism structure of the present invention;

[0023] Figure 5 Schematic diagram of the connection structure of the pushing block, clamping block and clamping part of the present invention;

[0024] Figure 6 Schematic diagram of the connection structure of the meshing plate and the rotating gear of the present invention;

[0025] Figure 7 Schematic diagram of the guiding and recycling mechanism structure of the present invention;

[0026] Figure 8 Schematic diagram of the connection structure between the moving mold and the collection tank of the present invention;

[0027] Figure 9 Schematic diagram of the connection structure of the adjusting plate, lifting rod and driven rod of the present invention;

[0028] Figure 10 Schematic diagram of the contact trend of the adjusting plate, lifting rod and driven rod structure of the present invention;

[0029] The meanings of each label in the figure are as follows:

[0030] 100, screw extruder;

[0031] 200, shaping mechanism; 201, fixed mold; 202, moving mold; 203, push plate; 204, fixed plate; 205, hydraulic cylinder 1; 206, hydraulic telescopic rod 1; 207, lead screw; 208, pushing block;

[0032] 300, clamping and shearing mechanism; 301, rotating rod; 302, sleeve plate; 303, connecting rod; 304, clamping block; 305, clamping part; 306, meshing plate; 307, rotating gear; 308, mounting block; 309, cylinder; 310, connecting plate; 311, shear blade;

[0033] 400, guiding and recycling mechanism; 401, hydraulic cylinder 2; 402, hydraulic telescopic rod 2; 403, clamping jaw; 404, clamping plate; 405, adjusting plate; 406, collection tank; 407, lifting rod; 408, conveyor belt; 409, linkage rod; 410, driven rod; 411, conveyor belt; 412, baffle; 413, chute; 414, buffer spring. Detailed implementation method

[0034] The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments in the present invention without creative efforts shall fall within the protection scope of the present invention.

[0035] Please refer to Figure 1 、 Figure 4 and Figure 8 As shown, the purpose of this embodiment is to provide a mechanical arm with an in-gate shearing mechanism for an injection molding machine, which is installed on one side of the surface of the screw extruder 100 and includes a shaping mechanism 200, a clamping and shearing mechanism 300, and a guiding and recycling mechanism 400. The shaping mechanism 200 is fixedly installed on the upper right side of the 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. The guiding and recycling 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. The clamping and shearing mechanism 300 includes a clamping block 304, and a clamping part 305 is installed on the surface of one clamping block 304. When the screw extruder 100 corresponds and communicates with the fixed mold 201, an injection molding agent is injected into the cavity sleeved between the fixed mold 201 and the movable mold 202, so that an injection molded product is formed by cooling in the cavity sleeved between the fixed mold 201 and the movable mold 202. 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. 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 part 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 with 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, drives the meshing plate 306 to slide, and meshes with the rotating gear 307, so that the clamping block 304 and the clamping part 305 and the sleeve plate 302 rotate and adjust synchronously on the surface of the rotating rod 301 to clamp the surface of the injection molded product clamped on the surface of the movable mold 202;

[0036] By separating the injection-molded product from one side of the surface of the stationary mold 201 and clamping it on the surface of the moving mold 202 (for clamping the injection-molded product to be cooled and formed on the surface of the moving mold 202, an injection molding machine of model Haitian MA3800 / 2250 can be referred to), when the moving mold 202 moves from left to right to the parallel position of the clamping block 304 and the clamping part 305, the engaged plate 306 and the rotating gear 307 are engaged, driving the rotating rod 301 and the sleeve plate 302 to rotate towards one side of the surface of the injection-molded product, thereby enabling the clamping block 304 and the clamping part 305 to clamp the surface of the injection-molded product, and clamping the gate waste at the central position of the surface of the injection-molded product. After shearing the gate waste, the clamping part 305 can centrally collect and process the gate waste.

[0037] Therefore, on the basis of the above structure, in combination with Figures 1 - 2 As shown, the structure of the shaping mechanism 200 is further disclosed. A stationary mold 201 is installed on the right side of the surface of the screw extruder 100. A moving mold 202 is slidably sleeved on the right side of the surface of the stationary mold 201. A push plate 203 is fixedly installed on the right side of the surface of the moving mold 202. A first hydraulic telescopic rod 206 is telescopically sleeved on the right side of the surface of the push plate 203. A fixing plate 204 is installed on the right side of the surface of the first hydraulic telescopic rod 206. A first hydraulic cylinder 205 is arranged on the right side of the surface of the fixing plate 204. A lead screw 207 is installed around the surfaces of the stationary mold 201, the moving mold 202 and the push plate 203. A push block 208 is arranged at the central position of the surface of the push plate 203;

[0038] First, by operating the first hydraulic cylinder 205, the first hydraulic telescopic rod 206 generates a thrust on the push plate 203 and the moving mold 202, and under the directional transmission effect of the lead screw 207, the moving mold 202 and the stationary mold 201 are sleeved. The injection molding agent is transmitted into the stationary mold 201 by using the screw extruder 100. The injection molding agent forms an injection-molded product inside the moving mold 202 and the stationary mold 201. After cooling for a period of time, the moving mold 202 and the stationary mold 201 are separated. The injection-molded product cooled and formed is clamped on the surface of the moving mold 202 and slides along with the moving mold 202 (generally, when designing an injection mold, it is usually required that after the injection mold is separated, the injection-molded product stays on one side of the moving mold 202 because a demolding mechanism is often arranged on one side of the moving mold 202, which can conveniently push the injection-molded product out of the moving mold 202. This belongs to the prior art, so it is not specifically described);

[0039] On the basis of the above structure, in combination with Figures 4 - 6As shown, the structure of the clamping and shearing mechanism 300 is further disclosed. The clamping and shearing mechanism 300 includes a clamping component and a shearing component. The clamping component 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. One side of the surface of the sleeve plate 302 is provided with a connecting rod 303. One side of the surface of the connecting rod 303 is provided with a clamping block 304. A clamping part 305 is installed on the surface of one clamping block 304. One side of the surface of the moving mold 202 is connected with an engaging plate 306. A rotating gear 307 is fixedly sleeved on the lower surface of the rotating rod 301;

[0040] Secondly, when the moving mold 202 slides from left to right, the push plate 203 drives the engaging plate 306 to slide synchronously, so that the engaging plate 306 and the rotating gear 307 are in sliding contact on the surface, causing the rotating gear 307 to rotate. Further, the rotating rod 301 and the sleeve plate 302 rotate towards both sides of the moving mold 202, so that the clamping block 304 and the clamping part 305 clamp and engage with the injection molded product clamped on the surface of the moving mold 202. Since there is a gap between the clamping part 305 and the clamping block 304, it does not affect the subsequent shearing treatment of the waste material at the gate position of the injection molded product;

[0041] On the contrary, when the moving mold 202 slides from right to left, the engaging plate 306 and the rotating gear 307 are in sliding contact, which can cause the rotating rod 301 and the sleeve plate 302 to rotate towards both sides of the moving mold 202. Subsequently, the moving mold 202 continues to be sleeved with the fixed mold 201;

[0042] The improvement lies in that when the moving mold 202 slides towards the right side of the surface of the fixed mold 201, the engaging plate 306 generates a clockwise direction on the rotating gear 307, and further causes the rotating rod 301 and the sleeve plate 302 to rotate towards the surface of the injection molded product clamped on the surface of the moving mold 202. The clamping block 304 and the clamping part 305 are used to clamp and engage the injection molded product. On the contrary, when the moving mold 202 slides towards the left side of the surface of the fixed mold 201, the engaging plate 306 generates a counterclockwise direction on the rotating gear 307, and further causes 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 moving mold 202, without affecting the normal process of the moving mold 202 and the fixed mold 201 for sleeving and producing the injection molded product.

[0043] Furthermore, in combination with Figure 3 As shown, the shearing component includes a mounting block 308. A connecting plate 310 is installed at the central position of the surface of the mounting block 308. A shearing blade 311 is arranged at the front end of the connecting plate 310. One side at the bottom of the back surface of the connecting plate 310 is installed with a cylinder 309. The mounting block 308 is installed at the central position of one side of the surface of the sleeve plate 302;

[0044] Then, after the injection molded product clamped and connected to the surface of the moving mold 202 by the clamping block 304 and the clamping part 305, the set connecting plate 310 is parallel to the surface of the injection molded product, and the shearing blade 311 corresponds to both sides of the gate waste of the injection molded product. Since a cylinder 309 is installed on one side of the back surface of the connecting plate 310, the solenoid valve is used to control the entry and discharge of compressed air, so that the piston rod of the cylinder 309 moves. 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 connected to the shearing blade 311. One end of the shearing blade 311 is connected to the piston rod through a pin shaft, and the shearing blade 311 can rotate up and down around the pin shaft. The compressed air pushes the piston rod of the cylinder 309 to extend. Since the piston rod is hinged to the shearing blade 311, the extending movement of the piston rod will be converted into the rotational movement of the shearing blade 311. Therefore, the shearing blade 311 shears the gate waste and is clamped inside the clamping part 305, preventing the gate waste from falling into the collection tank 406, which is convenient for collecting and processing the gate waste;

[0045] The improvement lies in that the connecting plate 310, the clamping block 304 and the clamping part 305 are arranged in parallel. When the clamping block 304 and the clamping part 305 vertically clamp and connect the injection molded product, the connecting plate 310 is also perpendicular to the surface of the injection molded product and closely adheres to the surface of the injection molded product. At the same time, the set shearing blade 311 corresponds 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. The extending movement of the piston rod will be converted into the rotational movement of the shearing blade 311. The pin shaft is used to make the shearing blade 311 move up and down in a hinged manner, so that the shearing blade 311 shears the gate waste, and finally the sheared gate waste is 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 from the clamping block 304, preventing the gate waste from falling into the collection tank 406 after shearing, which is not convenient for collecting and processing the gate waste.

[0046] Further, in combination with Figures 7 - 10As shown, the structure of the guiding and recycling mechanism 400 is further disclosed. The guiding and recycling mechanism 400 includes a collection tank 406. On the outer surface of the back of the collection tank 406, a second hydraulic cylinder 401 is provided. On one side of the surface of the second hydraulic cylinder 401, a second hydraulic telescopic rod 402 is connected. On one side of the surface of the second hydraulic telescopic rod 402, a clamping jaw 403 is connected. At the central position inside the collection tank 406, a conveyor belt 411 is installed. On both sides of the surface of the conveyor belt 411, clamping plates 404 are installed. On both sides of the upper surface of the clamping plates 404, baffle plates 412 are installed. On one side of the surface of the conveyor belt 411, a transmission belt 408 is drivingly connected. On the upper surface of the transmission belt 408, a linkage rod 409 is rotatably sleeved. Around the outer surface of the linkage rod 409, driven rods 410 are installed. On the right side of the inner wall of the upper surface of the collection tank 406, a chute 413 is provided. On both sides inside the chute 413, buffer springs 414 are installed. On the surface of the chute 413, an adjusting plate 405 is slidably connected. On the lower surface of the adjusting plate 405, a lifting rod 407 is connected. The moving die 202 slides on the surface of the adjusting plate 405 and is squeezed;

[0047] Finally, when the moving die 202 slides from left to right, it contacts and squeezes the surface of the adjusting plate 405, causing the adjusting plate 405 to first slide to the right on the surface of the chute 413, and then the lower surface of the adjusting plate 405 is lifted upward to the left. At the same time, the injection molded product is separated from the surface of the moving die 202 through the push block 208, contacts the surface of the adjusting plate 405, and contacts the surface of one side of the baffle plate 412 under the inclination of the adjusting plate 405, and finally is introduced onto the surface of the clamping plate 404 on the leftmost side of the upper surface of the conveyor belt 411;

[0048] When the moving die 202 slides from right to left, a leftward thrust is generated on the adjusting plate 405. The adjusting plate 405 first slides to the left on the surface of the chute 413, and then the lower surface of the adjusting plate 405 is inclined to the right, causing the lower surface of the lifting rod 407 to be lifted synchronously to the right and contact the surface of the driven rod 410, generating an upward lifting force, causing the linkage rod 409 to rotate, and under the linkage action of the transmission belt 408, effectively making the conveyor belt 411 operate, causing the clamping plate 404 to move on the surface of the conveyor belt 411, displacing the injection molded product clamped on the surface of the clamping plate 404. When the clamping plates 404 on the upper surface of the conveyor belt 411 are all clamped with injection molded products, the second hydraulic cylinder 401 is started, and the injection molded product is pushed to the outer surface by using the second hydraulic telescopic rod 402 and the clamping jaw 403;

[0049] A slider is connected between the adjusting plate 405 and the chute 413. One side of the surface of the slider and the adjusting plate 405 are connected through a bearing. Therefore, after the adjusting plate 405 and the moving die 202 contact and squeeze, it will be reset by using the bearing, facilitating the reciprocating squeezing between the moving die 202 and the adjusting plate 405, sliding left and right on the surface of the chute 413, and transporting the injection molded product. The buffer spring 414 plays a resetting effect after the adjusting plate 405 is squeezed by the moving die 202;

[0050] The improvement lies in: by using the reciprocating motion of the moving die 202, a left-right tilting force is generated on the adjusting plate 405. On the one hand, it has an orienting effect on the transmission of the injection molded product. On the other hand, the injection molded products on the surface of the clamping plate 404 are orderly transported on the surface of the conveyor belt 411, which is convenient for subsequently guiding the injection molded products onto the surface of the clamping plate 404 in sequence.

[0051] To sum up, the working principle of this solution is as follows: under the pulling force of the hydraulic telescopic rod 206 and the lead screw 207, the moving die 202 is separated from the fixed die 201, and the injection molded product inside the fixed die 201 will be clamped on the surface of the moving die 202. When the engaging plate 306 and the rotating gear 307 are in meshing contact on the surface, the rotating rod 301 and the sleeve plate 302 can rotate towards both sides of the surface of the moving die 202, so that the clamping block 304 can clamp the surface of the injection molded product. At the same time, the provided clamping part 305 can position and clamp the waste generated at the center position and the gate of the injection molded product surface, which is convenient for subsequent recycling after shearing the waste with the shearing blade 311;

[0052] After the clamping block 304 and the clamping part 305 clamp and connect the injection molded product and the waste, the provided connecting plate 310, the clamping block 304 and the clamping part 305 are in parallel correspondence. Therefore, the shearing blade 311 can rotate and correspond to both sides of the waste clamped on the surface of the clamping part 305. Since a cylinder 309 is installed on one side of the back of the connecting plate 310, the solenoid valve is used to control the entry and discharge of compressed air, so that the piston rod of the cylinder 309 moves. 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 part 305, preventing the gate waste from falling into the collection tank 406, which is convenient for collecting and processing the gate waste;

[0053] After the gate waste of the injection molded product clamped on the surface of the moving mold 202 is cut off, the push block 208 is used to separate the injection molded product from the surface of the moving mold 202. At this time, the lower surface of the moving mold 202 generates a left-to-right thrust on the upper surface of the adjusting plate 405, causing the lower surface of the adjusting plate 405 to tilt to the left, so that the injection molded product is transferred from the surface of the adjusting plate 405 to the surface of the clamping plate 404 installed at the leftmost side of the upper surface of the conveyor belt 411. On the contrary, when the lower surface of the moving mold 202 generates a right-to-left thrust on the upper surface of the adjusting plate 405, causing the lower surface of the adjusting plate 405 to tilt to the right, at the same time, the lifting rod 407 is lifted upward from left to right and contacts the surface of the driven rod 410, causing the driven rod 410 to drive the linkage rod 409 to rotate to the right. Under the linkage action of the conveyor belt 408, the conveyor belt 411 is transferred from left to right, and the clamping plate 404 at the leftmost side of the upper surface of the conveyor belt 411 moves to the right, facilitating the subsequent dropping of the injection molded product through the adjusting plate 405. And so on, when the clamping plates 404 on the upper surface of the conveyor belt 411 are all clamped with injection molded products, the hydraulic telescopic rod two 402 provided performs a telescopic movement on the clamping jaw 403 to push the injection molded product to the outer surface.

[0054] 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 the descriptions in the specification are only preferred examples of the present invention and are not used to limit the present invention. Without departing from the spirit and scope of the present invention, the present invention will have various changes and improvements, and these changes and improvements all fall within the scope of the present invention claimed. The scope of protection claimed by the present invention is defined by the appended 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); 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), the upper surface of the transmission belt (408) is rotatably sleeved with a linkage rod (409), the outer surface of the linkage rod (409) is equipped with a driven rod (410) around, the right side of the inner wall of the upper surface of the collecting tank (406) is provided with a slide groove (413), the two sides of the slide groove (413) are equipped with buffer springs (414), the surface of the slide groove (413) is slidably connected to an adjustment plate (405), the lower surface of the adjustment plate (405) is connected to a lifting rod (407), and the movable mold (202) is slidably pressed against the surface of the adjustment plate (405); 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, and 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, and 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).

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 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).

6. The gate shearing type mechanical arm for injection molding machine according to claim 5, 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).

7. The in-gate shearing type mechanical arm for injection molding machine according to claim 5, 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.

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