A fully automatic precision relay skeleton integrated molding equipment

Abstract

The present invention provides a fully automatic precision relay skeleton integrated molding device, comprising a loading mechanism, a pre-placement mechanism, an injection molding mechanism, a unloading mechanism, and a material moving mechanism. The injection molding mechanism, the pre-placement mechanism, and the unloading mechanism are arranged in a triangular shape within the circumference covered by the robot working area. The present invention can greatly save the overall space occupied by the equipment, while improving the loading speed of terminal raw materials, speeding up the connection process of injection molding and unloading, further improving the production efficiency of the relay skeleton, and at the same time preventing shutdowns caused by falling or offsetting of terminal raw materials, further improving the stability, continuity and production efficiency of relay skeleton production.

Description

Technical Field

[0001] The present invention relates to the technical field of relay skeleton molding equipment, in particular to a fully automatic precision relay skeleton integral molding equipment. Background Art

[0002] The existing relay frames are generally formed using vertical injection molding machines and corresponding molds. The loading of terminal materials, the removal of relay frames after injection molding, and the removal of scraps are all done manually. This method has low production efficiency and poor product quality stability, which cannot meet the growing product needs.

[0003] In addition, the existing relay skeleton forming equipment still has the following problems:

[0004] The loading mechanism, injection mechanism, and unloading mechanism are generally arranged in a linear manner, which takes up a large space. Unloading takes a certain amount of time, resulting in a long injection interval, and production efficiency still needs to be improved.

[0005] The frame is not firmly fixed during the material transfer process, resulting in the terminal material falling off or being offset, causing downtime.

[0006] In view of this, the inventor specially designed a fully automatic precision relay frame one-piece molding equipment, which resulted in this case. Summary of the Invention

[0007] In order to solve the above problems, the technical solutions of the present invention are as follows:

[0008] A fully automatic precision relay skeleton integrated molding device, a fully automatic precision relay skeleton integrated molding device, comprising:

[0009] The feeding mechanism includes a feeding platform and two vibration plates symmetrically arranged on the feeding platform, and the vibration plates are used to arrange the terminal raw materials neatly and transport them backward;

[0010] The pre-placement mechanism is provided on the loading platform and is located in a linear position between the two vibrating disks, and includes a linear module, an electric suction cup provided at the output position of the upper end of the linear module, a transfer mechanism symmetrically provided on both sides of the linear module, a material transfer positioning fixture symmetrically provided on both sides of the linear module, and a direct vibration feeding mechanism for connecting the material transfer positioning fixture and the output position of the vibrating disk. The electric suction cup is symmetrically provided with a plurality of pre-placement grooves adapted to the shape of the terminal raw material on both sides along its width direction, an electromagnet that can be magnetically attracted to the terminal raw material is provided at the bottom of the pre-placement groove, a suction chuck with an electromagnet is provided at the output end of the transfer mechanism, and the output end of the transfer mechanism reciprocates between the material transfer positioning fixture and the nearest pre-placement groove to realize the removal of the terminal raw material;

[0011] The injection molding mechanism includes an injection molding table, an injection molding machine, a switching turntable rotatably arranged on the injection molding table, a first station and a second station symmetrically arranged on the switching turntable, and a lower mold arranged on the first station and the second station, wherein the injection molding machine is provided with an upper mold that cooperates with the lower mold, and when one of the lower molds is aligned with the upper mold, the other lower mold rotates to the outside of the injection molding machine;

[0012] The blanking mechanism includes a cutting device, a moving device provided on one side of the cutting device, and a blanking die provided on the moving device and movable in a direction approaching or away from the cutting device. A blanking channel is provided below the cutting device, and the blanking channel includes a product discharge port, a sprue material discharge port, and a reversing device for switching the outlets.

[0013] The material transfer mechanism includes a robot and a material transfer fixture provided at the output position of the robot, the material transfer fixture includes a material transfer tooling and a pneumatic fixture provided on one side of the material transfer tooling, the lower end surface of the material transfer tooling is formed with a material transfer groove adapted to the shape of the electric suction cup, and a plurality of material transfer positions corresponding to the pre-placement grooves are formed in the material transfer groove, each of the material transfer positions is provided with an electromagnet for fixing the terminal raw material, the pneumatic fixture is used to clamp the sprue material shared by multiple relay skeletons formed on the lower mold, the lower mold forms an injection mold base adapted to the material transfer groove, and the injection mold base is provided with injection positions corresponding to the material transfer positions;

[0014] The injection molding mechanism, pre-placement mechanism and unloading mechanism are arranged in a triangle shape within the circumference covered by the robot working area.

[0015] Preferably, the material moving tooling includes a tooling upper plate, a fixture push plate and a base from top to bottom, the material moving trough is arranged on the lower end surface of the base, the four corners of the tooling upper plate are symmetrically provided with a first linear bearing, the upper end surface of the base is provided with four guide columns that vertically slide with the first linear bearing, and one end of the guide column passing through the first linear bearing is provided with a limiting ring, the fixture push plate is fixed to the tooling upper plate, and the base is provided with a push hole for ejecting the terminal raw material at the position of each material moving position, and the fixture push plate is symmetrically provided with a push plate on one side facing the base, and the push plate is provided with several push columns that interference fit with the push holes along its length direction, and the ejecting cylinder is symmetrically provided on both sides of the length direction of the fixture push plate, and the output shaft end of the ejecting cylinder is fixedly connected to the upper end surface of the base after passing through the fixture push plate.

[0016] Preferably, the terminal material has a horizontal end and an inclined end, the electric suction cup has fixed inclined surfaces on both sides adapted to the inclined end of the terminal material, the material transfer groove has fitting inclined surfaces on both sides adapted to the fixed inclined surfaces, and the electromagnet is arranged on the outer wall of the base and at a position opposite to the fitting inclined surface.

[0017] Preferably, the fixture push plate is symmetrically provided with a second linear bearing at both ends along its length direction and on the side facing the tooling upper plate. A first guide hole is penetrated through the tooling upper plate corresponding to the position of each second linear bearing. A push plate shaft is slidably provided on the axis of the linear bearing and the first guide hole, and one end of the push plate shaft is fixed on the fixture push plate.

[0018] Preferably, a buffer spring is provided between the upper end surface of the base and the first linear bearing and on the outer peripheral side of each guide column, and two ends of the buffer spring respectively abut against the end surface of the first linear bearing and the upper end surface of the base.

[0019] Preferably, a clamp adapter plate is provided on one side of the lower end surface of the tooling upper plate, and the pneumatic clamp is provided on the clamp adapter plate and its length direction is kept parallel to the length direction of the tooling upper plate.

[0020] Preferably, the material moving and positioning fixture includes a material separation base docked with the conveying track of the direct vibration feeding mechanism, a first slide rail provided on one side of the material separation base and distributed along its length direction, a material separation piece slidably provided on the first slide rail, an elastic mechanism for elastically pressing the material separation piece to move it toward the direct vibration feeding mechanism, and a driving mechanism provided at the upper end of the material separation piece. A material separation position that can accommodate a single terminal raw material is formed on the side of the material separation base close to the conveying track of the direct vibration feeding mechanism. The material separation piece closes the material separation position under the action of the elastic mechanism and limits the terminal raw material. The driving mechanism includes a bearing support frame and a yield bearing rotatably provided at the upper end of the bearing support frame. The suction chuck is opposite to the material separation position and the yield bearing rolls in contact with its side wall when the suction chuck moves downward, driving the material separation piece to move toward the direction away from the direct vibration feeding mechanism to expose the terminal raw material on the material separation position.

[0021] Preferably, the suction chuck includes a chuck fixing seat and an electric suction chuck from top to bottom, the electric suction chuck forms a contact surface adapted to the shape of the terminal raw material and the outer wall of the contact surface is provided with an electromagnet for magnetically attracting the terminal raw material, the chuck fixing seat is provided with a vertical guide portion on the side opposite to the yield bearing position, the lower end of the vertical guide portion forms an inclined guide surface, and when the suction chuck moves to the upper end of the material separation position, the guide surface is located directly above the yield bearing.

[0022] Preferably, a fixed plate is provided on the side of the material separation base away from the material separation position, a limiting hole is opened on the fixed plate, and the material separation piece is provided with a limiting rod passing through the limiting hole, and a reset spring is provided on the outer wall of the limiting rod and the two ends of the reset spring are respectively abutted against the fixed plate and the outer wall of the material separation piece, and the fixed plate, the limiting rod and the reset spring constitute the elastic mechanism.

[0023] Preferably, the lower end of the injection mold base is provided with an ejector mechanism for ejecting the completed transformer frame.

[0024] The beneficial effects of the present invention are as follows:

[0025] 1. The present invention takes the working range of the robot as a benchmark, and arranges the injection molding mechanism, pre-placement mechanism and unloading mechanism in a triangular shape, which is different from the existing linear arrangement and greatly saves space. At the same time, two vibrating plates are used to feed the materials at the same time, and two transfer mechanisms are used to synchronously move the terminal raw materials on the material transfer and positioning fixtures on both sides to the electric suction cup of the linear module in the middle. Each time the terminal raw materials are placed, the electric suction cup moves one step forward until the pre-placement slots on the electric suction cup are filled. The material transfer fixture on the robot quickly moves all the terminal raw materials on the electric suction cup to one side of the injection molding mechanism as a whole. The pneumatic clamp on the material transfer fixture clamps the sprue material formed by the multiple transformer skeletons that have been completed injection molding on the lower mold, and after lifting it, all the terminal raw materials on the material transfer fixture are placed on the injection mold base of the above-mentioned lower mold. The switching turntable rotates the above-mentioned lower mold to the lower end of the upper mold of the injection molding machine, and at the same time moves out the other lower mold that has been completed injection molding. At this time, the robot clamps the multiple transformers The skeleton is synchronously moved to the moving device of the unloading mechanism to facilitate the subsequent sprue material separation work. Finally, the robot moves back to the pre-placement mechanism position, takes out the next batch of terminal raw materials on the electric suction cup, and repeats the above process. Compared with the original terminal raw material injection molding method, the present invention uses dual feed channels to quickly collect terminal raw materials onto the electric suction cup, and uses the material transfer fixture on the robot to quickly move the entire tray of terminal raw materials to the lower mold. Finally, by switching the turntable, continuous injection molding of the lower mold on the first and second stations is achieved. While improving the loading speed of the terminal raw materials, it speeds up the connection process of injection molding and unloading, further improving the production efficiency of the relay skeleton; finally, by setting the electromagnet on the structure of the terminal raw materials in the moving process such as the electric suction cup and the material transfer tooling, the terminal raw materials are firmly fixed to prevent shutdowns caused by falling or offset of the terminal raw materials, thereby further improving the stability, continuity and production efficiency of the relay skeleton production.

[0026] 2. Set up the base, fixture push plate and tooling upper plate. When the material transfer tooling cooperates with the injection mold base, the base is retracted by the ejection cylinder, and the push plate and push column on the fixture push plate push the terminal raw material magnetically attracted in the material transfer groove away from the material transfer groove through the push hole, so that it is stably moved to the injection position of the injection mold base, and the base is reset by the buffer spring. In this way, the terminal raw material can be more stable and controllable during the transfer process.

[0027] 3. Set up a material transfer and positioning fixture to separate single terminal raw materials through the material spacing position, and before the suction chuck transfers the terminal raw materials on the material spacing position, the material spacing piece blocks and limits the peripheral side of the terminal raw materials to prevent the terminal raw materials from falling from the material spacing position, and in the process of the suction chuck moving down, the material spacing piece is pushed to the side away from the material spacing position under the rolling cooperation of the yield bearing and the suction chuck, thereby exposing the material spacing position, so that the suction chuck can accurately and conveniently absorb the terminal raw materials on the material spacing position through the electromagnet, thereby improving the stability and accuracy of the terminal raw material transfer process. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] The drawings described herein are used to provide further understanding of the present invention and constitute a part of the present invention. The exemplary embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute improper limitations on the present invention.

[0029] in:

[0030] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0031] Figure 2 It is a partial structural diagram highlighting the pre-placement mechanism in the present invention;

[0032] Figure 3 This is a schematic diagram of the partial structure of the material transfer fixture in the present invention;

[0033] Figure 4 This is a schematic diagram of the partial explosion structure of the material transfer fixture in the present invention;

[0034] Figure 5 It is a structural schematic diagram highlighting the lower mold in the present invention;

[0035] Figure 6 It is a side view structural diagram highlighting the pre-placement mechanism in the present invention;

[0036] Figure 7 It is a schematic diagram of a partially exploded structure highlighting the transplanting mechanism in the present invention;

[0037] Figure 8 It is a structural schematic diagram highlighting the blanking mechanism in the present invention.

[0038] Description of labels:

[0039] 1. Loading mechanism; 11. Loading table; 12. Vibrating plate; 2. Pre-placement mechanism; 21. Linear module; 211. Slide rail; 212. Output position; 22. Electric suction cup; 221. Pre-placement slot; 222. Opening; 223. Fixed slope; 23. Transfer mechanism; 231. Transfer motor; 232. Connecting plate; 233. Limit seat; 2331. Slide slot; 234. Eccentric wheel; 2341. Adaptive slot; 235. First slide; 236. Second slide; 237. Connecting rod; 238 , connecting wheel; 239, connecting shaft; 24, material transfer positioning fixture; 241, material separation base; 2411, material separation position; 242, first slide rail; 243, material separation piece; 244, elastic mechanism; 2441, fixed plate; 2442, limit rod; 2443, reset spring; 245, driving mechanism; 2451, bearing support frame; 2452, yield bearing; 25, direct vibration feeding mechanism; 251, conveying track; 26, suction chuck; 261, chuck fixing seat; 262, electric suction chuck; 2 63. Contact surface; 264. Vertical guide; 265. Guide surface; 3. Electromagnet; 4. Injection molding mechanism; 41. Injection molding table; 42. Injection molding machine; 43. Switching turntable; 44. Lower mold; 441. Injection mold base; 442. Injection position; 5. Unloading mechanism; 51. Cutting device; 52. Moving device; 53. Unloading mold; 54. Unloading channel; 55. Product discharge port; 6. Material transfer mechanism; 61. Robot; 62. Material transfer fixture; 621. Material transfer tooling; 6211. Tooling upper plate ;6212, fixture push plate; 6213, base; 62131, push hole; 62132, fitting slope; 6214, first linear bearing; 6215, guide column; 62151, limit ring; 6216, push plate; 6217, push column; 622, pneumatic fixture; 6221, fixture adapter plate; 623, material transfer trough; 624, material shifting position; 625, ejecting cylinder; 626, second linear bearing; 627, push plate shaft; 628, buffer spring; 7, terminal raw material; 71, material head. DETAILED DESCRIPTION

[0040] In order to make the technical problems, technical solutions and beneficial effects to be solved by the present invention clearer and more understandable, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not intended to limit the present invention.

[0041] See also Figures 1 to 8 , is a fully automatic precision relay skeleton integrated molding device as the best embodiment of the present invention, a fully automatic precision relay skeleton integrated molding device, comprising:

[0042] The feeding mechanism 1 includes a feeding platform 11 and two vibration plates 12 symmetrically arranged on the feeding platform 11. The vibration plates 12 are used to arrange the terminal raw materials 7 in an orderly manner and transport them backwards.

[0043] The pre-placement mechanism 2 is provided on the loading platform 11 and is located in a linear position between the two vibration disks. It includes a linear module 21, an electric suction cup 22 provided at the output position 212 at the upper end of the linear module 21, a transfer mechanism 23 symmetrically provided on both sides of the linear module 21, a material transfer positioning fixture 24 symmetrically provided on both sides of the linear module 21, and a direct vibration feeding mechanism 25 for connecting the material transfer positioning fixture 24 and the output position 212 of the vibration disk 12. The linear module 21 uses the Volkswagen Industrial single-axis module KKS50. The upper end of the linear module 21 has a slide rail 211 and an output position 212 that moves linearly along the slide rail 211. The electric suction cup 22 is installed and fixed on the output position 212. Figure 2 The figure shows a schematic diagram of a single electric suction cup 22 located at the material transfer position 624 and the transfer position. In actual use, there is only one electric suction cup 22.

[0044] like Figure 2As shown, the electric suction cup 22 is symmetrically formed with sixteen pre-placement grooves 221 adapted to the shape of the terminal raw material 7 on both sides in the width direction. The pre-placement groove 221 is located at the upper end of the electric suction cup 22 and an opening 222 is dug at the bottom. An electromagnet 3 that can be magnetically attracted to the terminal raw material 7 is fixedly installed in the opening 222. The output end of the transfer mechanism 23 is provided with a suction chuck 26 with an electromagnet 3. The output end of the transfer mechanism 23 reciprocates between the material transfer positioning fixture 24 and the nearest pre-placement groove 221 to realize the removal of the terminal raw material 7. Specifically, the principle of the transfer mechanism 23 in this embodiment is as shown in FIG. The PPU transfer mechanism 23 disclosed in the national announcement number CN215515763U, the transfer mechanism 23 in this embodiment includes a transfer motor 231, a connecting plate 232, a limit seat 233, an eccentric wheel 234, a first slide 235, a second slide 236, a connecting rod 237, a connecting wheel 238 and a suction chuck 26, an inverted "U"-shaped slide groove 2331 is provided on the limit seat 233, and the two sides of the slide groove 2331 are respectively opposite to the straight line where the pre-placement groove 221 on one side of the electric suction cup 22 is located and the material spacing position 2411 on the material transfer positioning fixture 24, and one end of the eccentric wheel 234 rotates to connect The first slide 235 is horizontally arranged at the bottom of the connecting plate 232, and the second slide 236 is vertically arranged and slides left and right through the first slide 235. The connecting rod 237 is connected to the second slide 236 to achieve up and down guided sliding. Therefore, when the transfer motor 231 rotates, the deflection While the heart wheel 234 rotates left and right, it drives the connecting shaft 239 to slide back and forth along the slide groove 2331 through the adaptation groove 2341 and the connecting wheel 238, and at the same time drives the connecting rod 237 and the suction chuck 26 at the lower end of the connecting rod 237 to realize reciprocating motion between the material transfer positioning fixture 24 and the nearest pre-placement groove 221. The connecting rod 237 realizes the above-mentioned reciprocating motion under the sliding cooperation of the first slide 235 and the second slide 236. Therefore, compared with the cylinder-type movement, this solution has higher precision and convenience, and can further facilitate the removal of the terminal raw material 7.

[0045] like Figure 1As shown, the injection molding mechanism 4 includes an injection molding table 41, an injection molding machine 42, a switching turntable 43 rotatably provided on the injection molding table 41, a first station and a second station (not shown in the figure) symmetrically provided on the switching turntable 43, and a lower mold 44 provided on the first station and the second station. The injection molding machine 42 is provided with an upper mold (not shown in the figure) that cooperates with the lower mold 44. When one of the lower molds 44 is aligned with the upper mold, the other lower mold 44 rotates to the outside of the injection molding machine 42. In this embodiment, the switching turntable 43 is driven and turned by a corresponding motor hidden under the injection molding table 41.

[0046] like Figure 8 As shown, the blanking mechanism 5 includes a cutting device 51, a moving device 52 provided on one side of the cutting device 51, and a blanking die 53 provided on the moving device 52 and movable in a direction approaching or away from the cutting device 51. A blanking channel 54 is provided below the cutting device 51. The blanking channel 54 includes a product discharge port 55, a sprue material discharge port, and a reversing device for switching the outlet (not shown in the figure);

[0047] like Figure 1 、 3As shown in Figure 4, the material transfer mechanism 6 includes a robot 61 and a material transfer fixture 62 provided on the output position 212 of the robot 61. The material transfer fixture 62 includes a material transfer tool 621 and a pneumatic fixture 622 provided on one side of the material transfer tool 621. The lower end surface of the material transfer tool 621 is formed with a material transfer groove 623 that is adapted to the shape of the electric suction cup 22, and a plurality of material transfer positions 624 corresponding to the pre-placement grooves 221 are formed in the material transfer groove 623. Each material transfer position 624 is provided with an electromagnet 3 for fixing the terminal raw material 7. The pneumatic fixture 622 is used to clamp the lower mold. The material head 71 of the sprue material shared by the multiple relay skeletons after molding on 44, the lower mold 44 forms an injection mold base 441 adapted to the material transfer groove 623, and the injection mold base 441 is provided with an injection position 442 corresponding to the material transfer position 624 one by one, and the material transfer tooling 621 includes a tooling upper plate 6211, a fixture push plate 6212 and a base 6213 from top to bottom, the material transfer groove 623 is provided on the lower end surface of the base 6213, and the four corners of the tooling upper plate 6211 are symmetrically provided with a first linear bearing 6214, and the upper end surface of the base 6213 is provided with four first linear bearings 6214. The linear bearing 6214 is vertically slidably fitted with a guide post 6215. A limit ring 62151 is provided on one end of the guide post 6215 that passes through the first linear bearing 6214. The fixture push plate 6212 is fixed to the tooling upper plate 6211. The base 6213 is provided with a push hole 62131 for ejecting the terminal raw material 7 at each shift position 624. The fixture push plate 6212 is symmetrically provided with a push plate 6216 on one side facing the base 6213. The push plate 6216 is provided with a plurality of push posts 6217 along its length that are interference fit with the push holes 62131. , the ejection cylinders 625 are symmetrically provided on both sides of the length direction of the fixture push plate 6212, and the output shaft end of the ejection cylinder 625 passes through the fixture push plate 6212 and is fixedly connected to the upper end surface of the base 6213. The terminal raw material 7 has a horizontal end and an inclined end (not marked in the figure). The electric suction cup 22 has fixed inclined surfaces 223 on both sides that are adapted to the inclined ends of the terminal raw material 7. Fitting inclined surfaces 62132 that are adapted to the fixed inclined surfaces 223 are formed on both sides of the material transfer groove 623. The electromagnet 3 is arranged on the outer wall of the base 6213 and is opposite to the fitting inclined surface 62132.

[0048] Furthermore, the fixture push plate 6212 is symmetrically provided with second linear bearings 626 at both ends along its length direction and on the side facing the tooling upper plate 6211. A first guide hole (not marked in the figure) is penetrated by the tooling upper plate 6211 corresponding to the position of each second linear bearing 626. A push plate shaft 627 is slidably provided on the axis of the linear bearing and the first guide hole, and one end of the push plate shaft 627 is fixed on the fixture push plate 6212.

[0049] Furthermore, a buffer spring 628 is provided between the upper end surface of the base 6213 and the first linear bearing 6214 and on the outer peripheral side of each guide column 6215. The two ends of the buffer spring 628 respectively abut the end surface of the first linear bearing 6214 and the upper end surface of the base 6213.

[0050] like Figure 3 、 4 As shown, a clamp adapter plate 6221 is provided on one side of the lower end surface of the tooling upper plate 6211 , and the pneumatic clamp 622 is provided on the clamp adapter plate 6221 and its length direction is kept parallel to the length direction of the tooling upper plate 6211 .

[0051] like Figure 1 As shown, the injection molding mechanism 4 , the pre-placement mechanism 2 and the unloading mechanism 5 are arranged in a triangle shape within the circumference covered by the working area of ​​the robot 61 .

[0052] Preferably, the direct vibration feeding mechanism 25 has a linear conveying track 251 docked with the output end of the vibration disk 12, and the material moving and positioning fixture 24 includes a material separation base 241 docked with the conveying track 251, a first slide rail 242 provided on one side of the material separation base 241 and distributed along its length, a material separation piece 243 slidably provided on the first slide rail 242, an elastic mechanism 244 for elastically pressing the material separation piece 243 to move it toward the direct vibration feeding mechanism 25, and a driving mechanism 245 provided on the upper end of the material separation piece 243. A material separation position 2411 that can accommodate a single terminal raw material 7 is formed on the side of the material separation base 241 close to the conveying track 251 of the direct vibration feeding mechanism 25. The spacer 243 closes the spacer position 2411 under the action of the elastic mechanism 244 and forms a limit for the terminal raw material 7. The disengagement mechanism 245 includes a bearing support frame 2451 and a yield bearing 2452 rotatably arranged on the upper end of the bearing support frame 2451. The rotation axis of the yield bearing 2452 is perpendicular to the straight line where the conveying track 251 is located and its diameter is greater than the width of the bearing support frame 2451. The suction clamp 26 is opposite to the spacer position 2411 and when the suction clamp 26 moves downward, the yield bearing 2452 rolls and contacts with its side wall, driving the spacer 243 to move in the direction away from the direct vibration feeding mechanism 25 to expose the terminal raw material 7 on the spacer position 2411. Specifically, combined with Figure 6 、 Figure 7The suction chuck 26 includes a chuck fixing seat 261 and an electric suction chuck 262 from top to bottom. The electric suction chuck 262 forms a contact surface 263 adapted to the shape of the terminal raw material 7 and the outer wall of the contact surface 263 is provided with an electromagnet 3 for magnetically attracting the terminal raw material 7. The chuck fixing seat 261 is provided with a vertical guide portion 264 on the side opposite to the yield bearing 2452. The lower end of the vertical guide portion 264 forms an inclined guide surface 265. The higher side of the guide surface 265 extends to the outer wall of the vertical guide portion 264, and its lower end is inclined inward. When the suction chuck 26 moves to the upper end of the material separation position 2411, the guide surface 265 is located directly above the yield bearing 2452.

[0053] Preferably, Figure 2 As shown, a fixing plate 2441 is provided on the side of the material separation base 241 away from the material separation position 2411, a limiting hole (not shown in the figure) is provided on the fixing plate 2441, and the material separation piece 243 is provided with a limiting rod 2442 passing through the limiting hole, and a reset spring 2443 is provided on the outer wall of the limiting rod 2442 and the two ends of the reset spring 2443 are respectively in contact with the fixing plate 2441 and the outer wall of the material separation piece 243, and the fixing plate 2441, the limiting rod 2442 and the reset spring 2443 constitute an elastic mechanism 244.

[0054] Preferably, the lower end of the injection mold base 441 is provided with a pin mechanism (not shown in the figure) for ejecting the completed transformer skeleton. After the injection is completed, the switching turntable 43 rotates the corresponding lower mold 44 to a position outside the injection molding machine 42. The pin mechanism pushes up when the material transfer tooling 621 covers the injection mold base 441 to allow the completed transformer skeleton to be stably separated from the injection mold base 441, so that it can be smoothly attracted by the electromagnet 3 on the material transfer tooling 621 and fixed to the material transfer position 624 of the material transfer trough 623.

[0055] In addition, in this solution, the detection of the arrival of each terminal raw material 7 and the position detection of the suction fixture are both achieved by photoelectric sensing detection. The status of the terminal raw material 7 on the electric suction cup 22 is controlled by mold flow monitoring. The corresponding image is collected by a camera, and the quantity and position analysis of the terminal raw materials 7 on the image are performed to achieve monitoring. The operation of each part of the equipment is accessed, analyzed and output by PLC control. The operation of the robot 61 adopts the robot 61 control technology, and the injection molding machine 42 adopts frequency conversion control to support the complete implementation of the solution of this application. The above parts are parts that can be implemented by technical personnel in this field according to the corresponding structure, and will not be repeated here.

[0056] Operating Procedures

[0057] 1. The vibration plate feeds the relay terminal raw material 7 into the runway of the direct vibration feeding mechanism 25 until it reaches the designated position.

[0058] 2. Move the terminal material 7 forward to the positioning point (i.e. the spacing position 2411) by straight vibration.

[0059] 3. The two suction fixtures simultaneously grab the terminal material 7 through the electromagnet 3 and suck the terminal material 7 tightly and place it on the electric suction cup 22

[0060] 4. Each time the terminal material 7 is placed, the electric suction cup 22 moves forward until the terminal material 7 is placed 8 times. Two terminal materials 7 are placed at the same time each time, and 16 terminal materials 7 are placed.

[0061] 5. The linear module 21 sends the electric suction cup 22 to the designated position and waits for the robot 61 and the material transfer fixture 62 to remove the terminals in the electric suction cup 22.

[0062] 6. The robot 61 moves the terminal material 7 to the designated position and sucks the terminal material 7 in the electric suction cup 22 tightly.

[0063] 7. The robot 61 moves the clamped terminal material 7 to the injection mold base 441 of the lower mold 44. Before this, the pneumatic clamp 622 first clamps the molded transformer frame and its material head 71 to take out the product.

[0064] 8. The robot 61 removes the clamped material head 71 together with the transformer frame. At this time, the mold flow monitoring checks whether there are any residual items in the product in the lower mold 44. If it is normal, proceed to the next step

[0065] 9. The robot 61 moves the material transfer fixture 62 to the position where the terminal raw material 7 is placed, and the fixture places the terminal into the lower mold 44.

[0066] 10. The terminal material 7 is placed in the lower mold 44. The ejector cylinder 625 presses the terminal material 7 up and down onto the lower mold 44 until it is in place.

[0067] 11. The robot 61 will move away, and the timing mold flow monitoring will check whether the terminal material 7 is in place.

[0068] 12. The robot 61 places the clamped material head 71 together with the transformer frame onto the unloading mechanism 5, which cuts off the material head at the entry point.

[0069] 13. The lower mold 44 rotates to the designated position at the same time, and the injection molding machine 42 closes the upper mold and the lower mold 44.

[0070] 14. The injection molding machine 42 injects the material into the mold and combines it with the terminal material 7 to encapsulate the material.

[0071] 15. After the molding is completed, the injection is carried out, the mold is opened at a scheduled time, and the transformer skeleton is produced.

[0072] The beneficial effects of the present invention are as follows:

[0073] The present invention takes the working range of the robot 61 as the benchmark, and arranges the injection molding mechanism 4, the pre-placement mechanism 2 and the unloading mechanism 5 in a triangular shape, which is different from the existing linear arrangement and greatly saves space. At the same time, the two vibration plates 12 are used to feed the materials at the same time, and the two transfer mechanisms 23 are used to synchronously move the terminal raw materials 7 on the material transfer and positioning fixtures 24 on both sides to the electric suction cup 22 of the middle linear module 21. Each time the terminal raw material 7 is placed, the electric suction cup 22 moves forward until the pre-placement slot 221 on the electric suction cup 22 is filled, and the terminal raw materials 7 on the robot 61 are moved upward. The material transfer fixture 62 quickly moves all the terminal raw materials 7 on the electric suction cup 22 to one side of the injection molding mechanism 4. The pneumatic clamp 622 on the material transfer fixture 62 clamps the sprue material head 71 of the multiple transformer skeletons that have been completed on the lower mold 44. After lifting it, all the terminal raw materials 7 on the material transfer fixture 621 are placed on the injection mold base 441 of the above-mentioned lower mold 44. The switch turntable 43 rotates the above-mentioned lower mold 44 to the lower end of the upper mold of the injection molding machine 42, and at the same time moves out the other lower mold 44 that has been completed. At this time, the machine Person 61 synchronously moves the clamped multiple transformer skeletons to the moving device 52 of the unloading mechanism 5 to facilitate the subsequent sprue material separation work. Finally, the robot 61 moves back to the pre-placement mechanism 2 position, removes the next batch of terminal raw materials 7 on the electric suction cup 22, and repeats the above process. Compared with the original terminal raw material 7 injection molding method, the present invention uses a dual feeding channel to quickly collect the terminal raw materials 7 to the electric suction cup 22, and uses the material transfer fixture 62 on the robot 61 to quickly move the entire tray of terminal raw materials 7 to the lower mold 44. Finally, by switching the turntable 43, continuous injection molding of the lower mold 44 on the first and second stations is realized. While improving the loading speed of the terminal raw material 7, it speeds up the connection process of injection molding and unloading, further improving the production efficiency of the relay skeleton; finally, by setting the electromagnet 3 on the structure of the terminal raw material 7 during the movement of the electric suction cup 22, the material transfer tooling 621, etc., the terminal raw material 7 is firmly fixed to prevent the shutdown caused by the terminal raw material 7 falling or offset, and further improve the stability, continuity and production efficiency of the relay skeleton production.

[0074] A base 6213, a fixture push plate 6212 and a tooling upper plate 6211 are set. When the material transfer tooling 621 is coordinated with the injection mold base 441, the base 6213 is retracted by the ejection cylinder 625, and the push plate 6216 and the push column 6217 on the fixture push plate 6212 push the terminal raw material 7 magnetically attracted in the material transfer groove 623 away from the material transfer groove 623 through the pushing hole 62131, so that it is stably moved to the injection position 442 of the injection mold base 441, and the base 6213 is reset by the buffer spring 628, thereby making the terminal raw material 7 more stable and controllable during the transfer process.

[0075] A material transfer and positioning fixture 24 is provided to separate a single terminal raw material 7 through the material separation position 2411, and before the suction chuck 26 transfers the terminal raw material 7 on the material separation position 2411, the material separation piece 243 blocks and limits the peripheral side of the terminal raw material 7 to prevent the terminal raw material 7 from falling from the material separation position 2411, and in the process of the suction chuck 26 moving downward, the material separation piece 243 is pushed to the side away from the material separation position 2411 under the rolling cooperation of the giving way bearing 2452 and the suction chuck 26, thereby exposing the material separation position 2411, so that the suction chuck 26 can accurately and conveniently suck the terminal raw material 7 on the material separation position 2411 through the electromagnet 3, thereby improving the stability and accuracy of the terminal raw material 7 transfer process.

[0076] The present invention is described above by way of example in conjunction with the accompanying drawings. It is obvious that the specific implementation of the present invention is not limited to the above-mentioned method. As long as various non-substantial improvements are made using the method concept and technical solution of the present invention, or the concept and technical solution of the present invention are directly applied to other occasions without improvement, they are all within the scope of protection of the present invention.

Claims

1. A fully automatic precision relay frame integral molding equipment, characterized in that: include: The feeding mechanism includes a feeding platform and two vibration plates symmetrically arranged on the feeding platform, and the vibration plates are used to arrange the terminal raw materials neatly and transport them backward; The pre-placement mechanism is provided on the loading platform and is located in a linear position between the two vibrating disks, and includes a linear module, an electric suction cup provided at the output position of the upper end of the linear module, a transfer mechanism symmetrically provided on both sides of the linear module, a material transfer positioning fixture symmetrically provided on both sides of the linear module, and a direct vibration feeding mechanism for connecting the material transfer positioning fixture and the output position of the vibrating disk. The electric suction cup is symmetrically provided with a plurality of pre-placement grooves adapted to the shape of the terminal raw material on both sides along its width direction, an electromagnet that can be magnetically attracted to the terminal raw material is provided at the bottom of the pre-placement groove, a suction chuck with an electromagnet is provided at the output end of the transfer mechanism, and the output end of the transfer mechanism reciprocates between the material transfer positioning fixture and the nearest pre-placement groove to realize the removal of the terminal raw material; The injection molding mechanism includes an injection molding table, an injection molding machine, a switching turntable rotatably arranged on the injection molding table, a first station and a second station symmetrically arranged on the switching turntable, and a lower mold arranged on the first station and the second station, wherein the injection molding machine is provided with an upper mold that cooperates with the lower mold, and when one of the lower molds is aligned with the upper mold, the other lower mold rotates to the outside of the injection molding machine; The blanking mechanism includes a cutting device, a moving device provided on one side of the cutting device, and a blanking die provided on the moving device and movable in a direction approaching or away from the cutting device. A blanking channel is provided below the cutting device, and the blanking channel includes a product discharge port, a sprue material discharge port, and a reversing device for switching the outlets. The material transfer mechanism includes a robot and a material transfer fixture provided at the output position of the robot, the material transfer fixture includes a material transfer tooling and a pneumatic fixture provided on one side of the material transfer tooling, the lower end surface of the material transfer tooling is formed with a material transfer groove adapted to the shape of the electric suction cup, and a plurality of material transfer positions corresponding to the pre-placement grooves are formed in the material transfer groove, each of the material transfer positions is provided with an electromagnet for fixing the terminal raw material, the pneumatic fixture is used to clamp the sprue material shared by multiple relay skeletons formed on the lower mold, the lower mold forms an injection mold base adapted to the material transfer groove, and the injection mold base is provided with injection positions corresponding to the material transfer positions; The injection molding mechanism, pre-placement mechanism and unloading mechanism are arranged in a triangular shape within the circumference covered by the robot working area; The material moving and positioning fixture includes a material separation base docked with the conveying track of the direct vibration feeding mechanism, a first slide rail arranged on one side of the material separation base and distributed along its length direction, a material separation piece slidably arranged on the first slide rail, an elastic mechanism for elastically pressing the material separation piece to move it toward the direct vibration feeding mechanism, and a driving mechanism arranged at the upper end of the material separation piece, the material separation base forms a material separation position that can accommodate a single terminal raw material on the side of the conveying track of the direct vibration feeding mechanism, the material separation piece closes the material separation position under the action of the elastic mechanism and forms a limit for the terminal raw material, the driving mechanism includes a bearing support frame and a yield bearing rotatably arranged at the upper end of the bearing support frame, the suction chuck is opposite to the material separation position and the yield bearing rolls in contact with its side wall when the suction chuck moves downward, driving the material separation piece to move toward a direction away from the direct vibration feeding mechanism to expose the terminal raw material on the material separation position; The suction chuck includes a chuck fixing seat and an electric suction chuck from top to bottom. The electric suction chuck forms a contact surface adapted to the shape of the terminal raw material and the outer wall of the contact surface is provided with an electromagnet for magnetically attracting the terminal raw material. The chuck fixing seat is provided with a vertical guide portion on the side opposite to the yield bearing position. The lower end of the vertical guide portion forms an inclined guide surface. When the suction chuck moves to the upper end of the material separation position, the guide surface is located directly above the yield bearing.

2. The fully automatic precision relay frame integral molding equipment according to claim 1, characterized in that: The cam is secured to the upper edge of the base with a plurality of push rods, each of which is secured to a position adjacent to the support frame and has a spring, each of which is secured to a position adjacent to the support frame.

3. The fully automatic precision relay frame integral molding equipment according to claim 2, characterized in that: The terminal material has a horizontal end and an inclined end, and the electric suction cup has fixed inclined surfaces on both sides that are adapted to the inclined ends of the terminal material. The material transfer groove has fitting inclined surfaces on both sides that are adapted to the fixed inclined surfaces, and the electromagnet is arranged on the outer wall of the base and at a position opposite to the fitting inclined surfaces.

4. The fully automatic precision relay frame integral molding equipment according to claim 2, characterized in that: The fixture push plate is symmetrically provided with second linear bearings at both ends along its length and on the side facing the tooling upper plate. A first guide hole is penetrated through the tooling upper plate corresponding to the position of each second linear bearing. A push plate shaft is slidably provided on the axis of the linear bearing and the first guide hole, and one end of the push plate shaft is fixed to the fixture push plate.

5. The fully automatic precision relay frame integral molding equipment according to claim 2, characterized in that: A buffer spring is provided between the upper end surface of the base and the first linear bearing and on the outer peripheral side of each guide column, and two ends of the buffer spring respectively abut against the end surface of the first linear bearing and the upper end surface of the base.

6. The fully automatic precision relay frame integral molding equipment according to claim 2, characterized in that: A fixture adapter plate is provided on one side of the lower end surface of the tooling upper plate, and the pneumatic fixture is arranged on the fixture adapter plate and its length direction is kept parallel to the length direction of the tooling upper plate.

7. The fully automatic precision relay frame integral molding equipment according to claim 1, characterized in that: A fixing plate is provided on the side of the material separation base away from the material separation position, a limiting hole is provided on the fixing plate, and the material separation piece is provided with a limiting rod passing through the limiting hole. A reset spring is provided on the outer wall of the limiting rod and the two ends of the reset spring are respectively in contact with the fixing plate and the outer wall of the material separation piece. The fixing plate, the limiting rod and the reset spring constitute the elastic mechanism.

8. The fully automatic precision relay frame integral molding equipment according to claim 1, characterized in that: The lower end of the injection mold base is provided with an ejector pin mechanism for ejecting the transformer frame after injection molding.

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