Automatic water gap shearing mechanism for injection molding product

Abstract

The utility model relates to the technical field of injection molding product processing, in particular to an automatic water gap shearing mechanism of an injection molding product. The automatic water gap shearing mechanism for the injection product comprises a rack and a five-axis manipulator mounted on the rack, and a numerical control box for controlling the five-axis manipulator to move is mounted on the rack; the connecting arm is installed at one end of the rack, a PLC is fixedly installed on the connecting arm, and the PLC is electrically connected with the numerical control box; the stepping motor is fixedly mounted at the tail end of the connecting arm and electrically connected with the PLC, a connecting disc is fixedly mounted at the output end of the stepping motor, a mounting frame is mounted on the connecting disc, a sliding groove is formed in the mounting frame, a quick mounting mechanism is mounted in the sliding groove, pneumatic cutting pliers are clamped on the quick mounting mechanism, and an air valve controller is mounted on the connecting arm. And the air valve controller is electrically connected with the PLC. Automatic shearing is achieved through cooperation of the visual camera and the mechanical arm, efficiency is improved, and cost is reduced.

Description

TECHNICAL FIELD

[0001] The utility model relates to injection molding product processing technical field especially relates to an automatic water gap mechanism of injection molding product. BACKGROUND

[0002] The water gap of injection molding product refers to the channel of molten plastic into the cavity in the mould, also called the sprue. Its main role is to guide the plastic from the nozzle of the injection molding machine to the mold cavity.

[0003] After injection molding, the water gap part usually needs to be removed, the method including manual trimming, using manual trimming is low in efficiency, and the trimming fracture is uneven during trimming, leading to low water gap processing quality, and manual trimming is easy to scratch the injection molding product.

[0004] Therefore, it is necessary to provide a new automatic water gap mechanism of injection molding product to solve the above technical problems. UTILITY MODEL CONTENT

[0005] To solve the above technical problems, the utility model provides an automatic water gap mechanism of injection molding product.

[0006] The automatic water gap mechanism of injection molding product provided by the utility model comprises a rack, a five-axis mechanical hand installed on the rack, and a numerical control box installed on the rack and used for controlling movement of the five-axis mechanical hand;

[0007] A connecting arm is installed at one end of the rack, a PLC controller is fixedly installed on the connecting arm, and the PLC controller is electrically connected with the numerical control box;

[0008] A stepping motor is fixedly installed at the tail end of the connecting arm and electrically connected with the PLC controller, a connecting disc is fixedly installed at the output end of the stepping motor, a mounting frame is installed on the connecting disc, a sliding groove is formed in the mounting frame, a quick mounting mechanism is installed in the sliding groove, pneumatic cutting forceps are clamped on the quick mounting mechanism, a gas valve controller is installed on the connecting arm, the gas outlet end of the gas valve controller is communicated with the gas inlet end of the pneumatic cutting forceps through a conduit, and the gas valve controller is electrically connected with the PLC controller.

[0009] Preferably, the five-axis mechanical hand is provided with two groups of execution tails used for clamping the injection molding product.

[0010] Preferably, the quick mounting mechanism comprises a bidirectional threaded rod, the bidirectional threaded rod is rotatably installed in the sliding groove, symmetrically threaded clamping plates are installed on the bidirectional threaded rod, the clamping plates are in sliding fit with the sliding groove, a stop plate is fixedly installed on the inner side of one end of the clamping plate close to the sliding groove, a through groove is formed through the clamping plate, a lead screw is rotatably installed in the through groove, a top plate for pressing the pneumatic shears is threaded on the lead screw, the top plate is in sliding fit with the through groove, a visual camera is embedded on the top plate, and the visual camera is electrically connected with the PLC controller through a cable.

[0011] Preferably, the shears end of the pneumatic shears is arranged on one side of the visual camera.

[0012] Preferably, hand wheels are fixedly installed on both ends of the bidirectional threaded rod, and a rotating handle is fixedly installed on one end of the lead screw through the through groove.

[0013] Preferably, a plurality of positioning holes are uniformly formed on the connecting disc, and positioning pins are threaded on the mounting frame and inserted into the positioning holes.

[0014] Compared with the related art, the automatic water gap shearing mechanism for injection molding products has the following beneficial effects:

[0015] 1. The automatic water gap shearing mechanism for injection molding products is characterized in that a five-axis manipulator is installed on the rack, a connecting arm is arranged on the rack, a PLC controller, a stepping motor, a gas valve controller and pneumatic shears are arranged on the connecting arm, the water gap can be automatically recognized and sheared, and the efficiency of water gap shearing is improved.

[0016] 2. The pneumatic shears utilize the cooperation of the bidirectional threaded rod, the hand wheel, the clamping plate, the stop plate, the lead screw, the rotating handle, the top plate and the visual camera of the quick mounting mechanism, the corresponding shearing tool can be replaced according to the type of the water gap, the visual camera is used for auxiliary positioning, and the accuracy of water gap shearing positioning is improved. BRIEF DESCRIPTION OF DRAWINGS

[0017] Figure 1 FIG. 1 is a structural schematic view of a preferred embodiment of the automatic water gap shearing mechanism for injection molding products provided by the utility model;

[0018] Figure 2 FIG. 2 is a structural schematic view of the connecting arm of the automatic water gap shearing mechanism for injection molding products provided by the utility model, wherein the pneumatic shears are installed on the connecting arm;

[0019] Figure 3 FIG. 3 is a structural schematic view of the stepping motor of the automatic water gap shearing mechanism for injection molding products provided by the utility model, wherein the connecting disc is installed on the stepping motor;

[0020] Figure 4The automatic water gap shearing mechanism for injection molding products is provided with a quick rotating mechanism.

[0021] In the figure, 1 is a rack, 2 is a five-axis manipulator, 3 is a numerical control box, 4 is a connecting arm, 5 is a PLC controller, 6 is a stepping motor, 7 is a connecting disc, 71 is a mounting rack, 72 is a positioning pin, 701 is a sliding groove, 702 is a positioning hole, 8 is a quick mounting mechanism, 81 is a two-way threaded rod, 811 is a hand wheel, 82 is a clamping plate, 83 is a stop plate, 84 is a lead screw, 841 is a rotating handle, 85 is a top plate, 86 is a visual camera, 801 is a through slot, 9 is a pneumatic shears, and 91 is a gas valve controller. DETAILED DESCRIPTION

[0022] In order to make the purpose, technical scheme and advantages of the utility model clearer and more apparent, the utility model is further described in detail below in combination with the drawings and examples.

[0023] The specific implementation of the utility model is described in detail below in combination with specific examples.

[0024] Please refer to Figures 1 to 4 The automatic water gap shearing mechanism for injection molding products comprises:

[0025] A rack 1 and a five-axis manipulator 2 installed on the rack 1, wherein the rack 1 is provided with a numerical control box 3 for controlling the movement of the five-axis manipulator 2;

[0026] A connecting arm 4 installed on one end of the rack 1, wherein the connecting arm 4 is fixedly provided with a PLC controller 5, and the PLC controller 5 is electrically connected with the numerical control box 3;

[0027] A stepping motor 6 fixedly installed on the end of the connecting arm 4 and electrically connected with the PLC controller 5, wherein the output end of the stepping motor 6 is fixedly provided with a connecting disc 7, the connecting disc 7 is provided with a mounting rack 71, the mounting rack 71 is provided with a sliding groove 701, the sliding groove 701 is provided with a quick mounting mechanism 8, the quick mounting mechanism 8 is clamped with a pneumatic shears 9, the connecting arm 4 is provided with a gas valve controller 91, the gas outlet end of the gas valve controller 91 is communicated with the air inlet end of the pneumatic shears 9 through a pipe, and the gas valve controller 91 is electrically connected with the PLC controller 5.

[0028] Need to explain: use, install the frame 1 on the injection molding machine injection molding product opening mold pickup station, then after the injection molding product opens the mold, the five-axis manipulator 2 is used to automatically clamp the injection molding product, then according to the injection molding product nozzle design part, combined with the five-axis manipulator 2 clamping injection molding product part, the nozzle part is preliminarily positioned (here the five-axis manipulator 2 has a sensor for controlling the clamping of the injection molding product, which is used for accurately clamping the injection molding product), then the five-axis manipulator 2 is controlled by the numerical control box 3 to move the injection molding product to the connecting arm 4, until it is moved to the cutting opening of the pneumatic shears 9 on the connecting arm 4, then through the information interaction between the PLC controller 5 and the numerical control box 3, when the nozzle part is placed in the cutting opening, the air valve controller 91 controls the pneumatic shears 9 to start, the nozzle part is cut off, the automatic cutting of the nozzle is completed, the cutting opening of the pneumatic shears 9 can be adjusted by rotating the connecting disc 7 driven by the stepping motor 6, which is convenient for quickly cutting the nozzle in different directions, the pneumatic shears 9 are installed on the mounting frame 71 of the connecting disc 7 through the quick mounting mechanism 8, which is convenient for replacing different cutting tools in the later period, and can quickly cut different types of nozzles to improve the cutting quality.

[0029] And in the embodiment: the five-axis manipulator 2 is provided with two groups of execution ends for clamping the injection molding product, so that the injection molding product can be clamped from both ends by the two groups of execution ends, and after cutting the nozzle, one group of execution ends is used to clamp the injection molding product, and the other group of execution ends is used to clamp the nozzle part of the cut end, and then the material can be discharged respectively.

[0030] Further, a plurality of positioning holes 702 are uniformly formed on the connecting disc 7, and a positioning pin 72 is threadedly installed on the mounting frame 71 and inserted into the positioning hole 702, so that the position of the mounting frame 71 on the connecting disc 7 can be adjusted according to the specifications of the pneumatic shears 9, so that the pneumatic shears 9 are placed in the middle of the connecting disc 7.

[0031] It should be further pointed out that: here the stepping motor 6 can be replaced by a rotary air cylinder, which can drive the connecting disc 7 to rotate and adjust the position of the pneumatic shears 9.

[0032] In the embodiment of the utility model, please refer to Figures 1 to 4The quick mounting mechanism 8 comprises a bidirectional threaded rod 81, the bidirectional threaded rod 81 is rotationally installed in the sliding groove 701, and a clamping plate 82 is symmetrically and screwedly installed on the bidirectional threaded rod 81, the clamping plate 82 is in sliding fit with the sliding groove 701, and a stop plate 83 is fixedly installed on the inner side of one end of the clamping plate 82 close to the sliding groove 701, a through groove 801 is formed in the clamping plate 82, a lead screw 84 is rotationally installed in the through groove 801, a top plate 85 for pressing the pneumatic shears 9 is screwedly installed on the lead screw 84, the top plate 85 is in sliding fit with the through groove 801, a visual camera 86 is embedded on the top plate 85, and the visual camera 86 is electrically connected with the PLC controller 5 through a cable.

[0033] Wherein, the two ends of the bidirectional threaded rod 81 are fixedly installed with hand wheels 811, and one end of the lead screw 84 is fixedly installed with a rotating handle 841 through the through groove 801.

[0034] It should be noted that: when the quick mounting mechanism 8 is used, the pneumatic shears 9 are placed on the connecting disc 7 and between the two clamping plates 82, then the hand wheels 811 are rotated to drive the bidirectional threaded rod 81 to rotate, so that the two clamping plates 82 clamp and fix the pneumatic shears 9 between the clamping plates 82, then the rotating handle 841 is driven to rotate the lead screw 84, the lead screw 84 is rotated to drive the top plate 85 to slide along the through groove 801, until the pneumatic shears 9 are pressed and fixed on the stop plate 83, the fixing of the pneumatic shears 9 is completed, and when replacement is needed, the hand wheels 811 and the rotating handle 841 are only needed to be reversely rotated.

[0035] It should be noted that: in order to improve the positioning accuracy of shearing, the visual camera 86 is used to shoot and position the water port part of the injection molded product, so that the water port part of the injection molded product driven by the five-axis mechanical arm 2 falls into the shearing opening of the pneumatic shears 9, and the shearing end of the pneumatic shears 9 is arranged on one side of the visual camera 86, so that the pneumatic shears 9 can automatically shear the water port part.

[0036] The working principle of the automatic water port shearing mechanism for the injection molded product is as follows:

[0037] In use, the rack 1 is installed on the injection molding product opening and taking station of an injection molding machine, then after the injection molding product is opened, the five-axis mechanical arm 2 is used to automatically clamp and take the injection molding product, then according to the water gap design position of the injection molding product, the water gap position is preliminarily positioned in combination with the clamped injection molding product position of the five-axis mechanical arm 2, then the injection molding product is moved to the connecting arm 4 by the numerical control box 3 control five-axis mechanical arm 2, the water gap position is further photographed and positioned by the visual camera 86, then the water gap position is moved to the shearing opening of the pneumatic shears 9 on the connecting arm 4, then the information interaction between the PLC controller 5 and the numerical control box 3 is controlled, when the water gap position is placed at the shearing opening, the air valve controller 91 is controlled to control the pneumatic shears 9 to start, the water gap position is sheared off, the automatic shearing of the water gap is completed, the shearing opening of the pneumatic shears 9 can be adjusted in rotation by the step motor 6 driven connecting disc 7, so that the water gap in different directions can be quickly sheared, the pneumatic shears 9 are installed on the mounting frame 71 of the connecting disc 7 through the quick mounting mechanism 8, so that different shearing tools can be replaced in the later period, different water gap types can be quickly sheared, and the shearing quality is improved.

[0038] The circuit and the control involved in the utility model are prior art, and too much repetition is not performed herein.

[0039] The above is only an embodiment of the utility model, and does not limit the patent range of the utility model, and equivalent structures or equivalent process transformations using the utility model specification and drawing contents, or direct or indirect application in other related technical fields are also included in the patent protection range of the utility model.

Claims

1. An automatic sprue trimming mechanism for injection molded products, comprising: a rack (1), and a five-axis robot (2) mounted on the rack (1), and a numerical control box (3) mounted on the rack (1) to control the movement of the five-axis robot (2); characterized in that it further comprises: a connecting arm (4) mounted on one end of the rack (1), and a PLC controller (5) fixedly mounted on the connecting arm (4), the PLC controller (5) being electrically connected with the numerical control box (3); a stepper motor (6) fixedly mounted on the end of the connecting arm (4) and electrically connected with the PLC controller (5), and a connecting disc (7) fixedly mounted on the output end of the stepper motor (6), an installation rack (71) being mounted on the connecting disc (7), a sliding groove (701) being formed in the installation rack (71), a quick mounting mechanism (8) being mounted in the sliding groove (701), and a pneumatic shears (9) being clamped on the quick mounting mechanism (8), a gas valve controller (91) being mounted on the connecting arm (4), the gas outlet end of the gas valve controller (91) being in communication with the gas inlet end of the pneumatic shears (9) through a conduit, and the gas valve controller (91) being electrically connected with the PLC controller (5).

2. The automatic sprue shearing mechanism of the injection-molded product according to claim 1, characterized by, The five-axis robot (2) is provided with two groups of execution ends for clamping injection molded products.

3. The automatic sprue shearing mechanism of the injection molded product according to claim 1, characterized by, The quick mounting mechanism (8) comprises a bidirectional threaded rod (81) rotatably mounted in the sliding groove (701), and a clamping plate (82) symmetrically screw-mounted on the bidirectional threaded rod (81), the clamping plate (82) being in sliding fit with the sliding groove (701), and a stop plate (83) being fixedly mounted on the inner side of the end of the clamping plate (82) close to the sliding groove (701), a through groove (801) being formed in the clamping plate (82), a lead screw (84) being rotatably mounted in the through groove (801), a top plate (85) for pressing the pneumatic shears (9) being screw-mounted on the lead screw (84), the top plate (85) being in sliding fit with the through groove (801), a visual camera (86) being embedded on the top plate (85), and the visual camera (86) being electrically connected with the PLC controller (5) through a cable.

4. The automatic sprue shearing mechanism of the injection-molded product according to claim 3, characterized by, The shears end of the pneumatic shears (9) is arranged on one side of the visual camera (86).

5. The automatic sprue shearing mechanism of the injection molded product according to claim 3, characterized by, Hand wheels (811) are fixedly mounted on both ends of the bidirectional threaded rod (81), and a rotating handle (841) is fixedly mounted on one end of the lead screw (84) through the through groove (801).

6. The automatic sprue shearing mechanism of the injection molded product according to claim 3, characterized by, A plurality of positioning holes (702) are uniformly formed in the connecting disc (7), and positioning pins (72) are screw-mounted on the installation rack (71) and inserted into the positioning holes (702).

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