A connector injection molding machine

Abstract

The present application relates to the field of injection molding machines, and more particularly to a connector injection molding machine, comprising a main body and a blanking tray. The blanking tray is used to cover a static mold after injection molding. A cutting blade is rotatably mounted on the blanking tray for cutting waste material. An extension rod is provided at the end of the cutting blade, which is used to contact the static mold to drive the cutting blade to rotate. The blanking tray is provided with a suction hole for sucking the housing. The present application has the effect of accelerating the process of separating the entire housing and deburring and trimming it, while also alleviating the problem of having too much equipment.

Description

Technical Field

[0001] The present application relates to the field of injection molding machines, and in particular to a connector injection molding machine. Background Art

[0002] Connectors are usually composed of a shell and pins. The shell is often produced by batch injection molding using an injection molding machine, and then the shell and pins are automatically assembled using assembly equipment.

[0003] An injection molding machine, also known as an injection molding machine or injection machine, is the primary molding equipment used to convert thermoplastics or thermosetting plastics into various shapes using plastic molding molds. Available in vertical, horizontal, and all-electric models, the injection molding machine heats the plastic and applies high pressure to the molten plastic, causing it to eject and fill the mold cavity. Plastic molding molds often consist of an upper mold and a lower mold, also known as a dynamic mold and a static mold, with the mold cavity formed between them. After injection molding is completed, the upper and lower molds are opened, and a robotic arm is often used to demold the entire molded housing. The entire housing consists of several rows of housings and adjacent, connected scraps. The entire housing is then cut and separated, and burrs are trimmed. This is a complex process requiring extensive equipment. Summary of the Invention

[0004] In order to improve the problem of numerous equipments and complicated processing procedures, the present application provides a connector injection molding machine.

[0005] This application provides a connector injection molding machine, which adopts the following technical solutions:

[0006] A connector injection molding machine includes a main body and a blanking tray. The blanking tray is used to cover the static mold after injection molding. A cutting knife for cutting waste is rotatably provided on the blanking tray. An extension rod is provided on the end of the cutting knife. The extension rod is used to contact the static mold to drive the cutting knife to rotate. A suction hole is opened on the blanking tray, and the suction hole is used to suck the shell.

[0007] By adopting the above technical solution, when the injection molding shell is completed and the dynamic mold is separated from the static mold, the static mold is covered by the blanking tray. In the process of the blanking tray moving toward the static mold, the extension rod contacts the static mold. As the blanking tray continues to approach the static mold, the extension rod rotates to drive the cutting knife to rotate until the cutting knife rotates and cuts the waste material. Automatic cutting is achieved through the mechanical structure, which reduces the use of the driving source, saves energy, reduces manufacturing costs, and facilitates the separation of the entire shell. The cut shell is adsorbed through the suction hole, and the displacement of the blanking tray can now take out the separated shell for demolding and blanking, which facilitates blanking after cutting, realizes the integration of demolding, cutting, and blanking, and greatly improves the speed of demolding and blanking. Integration also reduces the equipment required for subsequent cutting of the entire shell, reducing manufacturing costs.

[0008] Optionally, a first torsion spring is provided on the cutting knife rotating shaft, and the first torsion spring is used to rotate the extension rod in the direction toward the static mold. A deburring assembly is provided on the discharge disc, and the deburring assembly includes a knife seat slidably arranged on the discharge disc and a scraper provided on the knife seat for scraping burrs. The cutting knife rotates to drive the knife seat to slide.

[0009] By adopting the above technical solution, when the cutting knife rotates to cut, the rotation of the cutting knife will drive the sliding of the knife holder, and the sliding of the knife holder will drive the scraper to slide, so that the burrs on the side wall of the shell surface are scraped off by the scraper, realizing the linkage between the cutting knife and the scraper, and the cutting knife drives the scraper to scrape, thereby increasing the range of the scraper to scrape the burrs, further reducing the use of the driving source, and reducing the manufacturing cost; when the unloading disc moves toward the direction close to the static mold, the cutting knife rotates to cut the waste material, and at the same time, the cutting knife rotates to drive the scraper to slide on the shell, and there is a relative displacement between the sliding of the unloading disc and the shell, thereby further enhancing the scraping burr effect of the scraper, realizing the integration of scraping burrs, cutting waste materials and unloading, further reducing the equipment required for subsequent scraping burrs, and further reducing the manufacturing cost and equipment volume.

[0010] Optionally, a support rod is rotatably provided on the knife holder, and the scraper is arranged on the support rod.

[0011] By adopting the above technical solution, the support rod is used to make the scraper slide more closely on the shell, thereby improving the processing efficiency of the scraper in scraping burrs and enhancing the effect of the scraper in scraping burrs.

[0012] Optionally, a stabilizing ring is provided on the discharge tray, the stabilizing ring is sleeved on the outer ring of the shell, and the scraper is in contact with the stabilizing ring.

[0013] By adopting the above technical solution, when the blanking disc moves toward the direction close to the static mold, the shell is clamped by the stabilizing ring, which improves the stability of the shell and reduces the probability of the shell falling due to the loss of support of the waste on both sides when the cutting knife rotates to cut the waste. The shell is stabilized on the blanking disc, and it is convenient for the scraper to scrape burrs on the surface of the shell, and reduces the displacement of the shell as the scraper slides due to pressure and friction when the scraper scrapes on the surface of the shell, thereby reducing the relative displacement between the shell and the scraper, reducing the effect of the scraper in scraping burrs, and ensuring the effect of the scraper in scraping burrs.

[0014] Optionally, a guide plate is rotatably provided on the stabilizing ring, and a second torsion spring is provided on the guide plate rotating shaft. The second torsion spring is used to rotate the guide plate toward the opening surface of the stabilizing ring. A pull rope is provided on the cutting knife, and the other end of the pull rope is provided on the guide plate. The cutting knife rotates to pull the guide plate.

[0015] By adopting the above technical solution, when the lower feeding tray moves toward the direction close to the static mold, the rotation of the cutting knife will pull the guide plate to rotate in the direction away from the opening surface of the stabilizing ring. At this time, if the positions of the stabilizing ring and the shell are not aligned, the position can be corrected by the guide plate, so that the stabilizing ring is correctly mounted on the shell, reducing the influence of small errors, improving the stability of the shell and expanding the adaptation range of the stabilizing ring; when the lower feeding tray moves toward the direction away from the static mold, the cutting knife resets and rotates, so that the guide plate also resets and rotates under the elastic force of the second torsion spring, so that the guide plate is clamped on the shell, thereby clamping and stabilizing the shell, further improving the stability of the shell, and reducing the probability of the shell shaking in the stabilizing ring and then falling as the lower feeding tray slides.

[0016] Optionally, a receiving plate for receiving the cut waste is rotatably provided on the discharge tray, and a resistance block is provided on the main body, and the resistance block is used to resist the rotation of the receiving plate to pour the waste down.

[0017] By adopting the above technical solution, the cut waste is received and temporarily stored by the receiving plate. When the unloading tray moves away from the static mold, the receiving plate will abut against the resistance block. At this time, the receiving plate will tilt under the guidance of the side wall of the resistance block, so that the waste carried on the receiving plate rolls down, thereby realizing the unloading of the waste.

[0018] Optionally, a sliding groove for the interference block to be inserted and slide is provided on the main body, and a first spring is provided on the interference block, and the first spring is used to keep the interference block in contact with the material receiving plate.

[0019] By adopting the above technical solution, when the unloading tray continues to move until the receiving plate shaft collides with the resistance block, the resistance block will slide in the slide groove. When the receiving plate shaft slides to the other side of the resistance block, the resistance block will be reset and pressed on the side wall of the receiving plate under the elastic force of the first spring. At this time, the receiving plate will tilt under the action of the resistance block, and the tilting direction of the receiving plate is opposite to the previous tilting direction. At this time, the suction hole releases the adsorption of the shell, and the shell falls and drops under the guidance of the receiving plate, and the shell and the waste material are respectively unloaded to different positions, realizing automatic unloading, and the direction change is achieved through the mechanical structure, reducing the use of the driving source and reducing the manufacturing cost.

[0020] Optionally, a stabilizing bar is provided on the material receiving plate, and the stabilizing bar is used to surround the waste material, and an inclined block is provided between the stabilizing bar and the material receiving plate.

[0021] By adopting the above technical solution, waste is temporarily stored by stabilizing bars, which reduces the probability of waste sliding off the receiving plate due to the displacement of the discharge tray, blocks the waste, and reduces the influence of the stabilizing bars on the subsequent discharge when the receiving plate is tilted to discharge the material by making the inclined block inclined.

[0022] In summary, this application includes at least one of the following beneficial technical effects:

[0023] 1. The demoulding, cutting and blanking are integrated, which greatly improves the speed of demoulding and blanking. The integration also reduces the equipment required for subsequent cutting of the entire shell, reducing manufacturing costs.

[0024] 2. The integration of deburring, waste cutting and blanking is realized, which further reduces the equipment required for subsequent deburring, further reduces manufacturing costs and equipment volume. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 This is a schematic diagram of the overall structure of a connector injection molding machine in an embodiment of the present application.

[0026] Figure 2 It is a structural diagram of the unloading tray.

[0027] Figure 3 yes Figure 2 Schematic diagram of the enlarged structure at point A in the middle.

[0028] Figure 4 It is a structural diagram of the stabilization ring.

[0029] Explanation of the accompanying drawings: 1. Feeding tray; 11. Cutting knife; 111. Main body; 112. Cutting rod; 12. Extension rod; 13. Suction hole; 14. First torsion spring; 2. Deburring assembly; 21. Knife holder; 211. Rope; 22. Scraper; 23. Support rod; 231. Third torsion spring; 24. Stabilizing ring; 25. Sliding groove; 251. Second spring; 3. Guide plate; 31. Second torsion spring; 32. Pull rope; 4. Receiving plate; 41. Resistance block; 411. First guide surface; 412. Second guide surface; 42. Slide groove; 43. First spring; 44. Stabilizing bar; 45. Oblique block. DETAILED DESCRIPTION

[0030] The following is combined with Figure 1-4 This application is described in further detail.

[0031] The embodiment of the present application discloses a connector injection molding machine. Figure 1 and Figure 2 The connector injection molding machine includes a main body 111 and a blanking tray 1. Both the dynamic mold and the static mold are mounted and operated on the main body 111. The main body 111 is also mounted with a base plate. The base plate is fixedly connected to a lifting rail. A transverse slide is clamped and slidably connected to the lifting rail. The base plate is fixedly connected to a lifting motor. A lifting screw is fixedly connected to the lifting motor's rotating shaft. The lifting screw is threadedly connected to the transverse slide. The transverse slide is fixedly connected to a transverse rail. The blanking tray 1 is clamped and slid on the transverse rail. The transverse slide is fixedly connected to a sliding motor. A sliding screw is fixedly connected to the sliding motor's rotating shaft. The sliding screw is threadedly connected to the blanking tray 1. The blanking tray 1 is slidably used to cover the static mold after injection molding. A number of cutting knives 11 for cutting waste are rotatably installed on the blanking tray 1. An extension rod 12 is also fixedly connected to the end of the cutting knife 11. The extension rod 12 and the cutting knife 11 are respectively located on both sides of the rotating shaft of the cutting knife 11. The extension rod 12 is used to contact the static mold to drive the cutting knife 11 to rotate. A number of suction holes 13 are opened on the blanking tray 1, and the suction holes 13 are used to suck the shell.

[0032] Reference Figure 3 The plurality of cutting blades 11 are grouped into two adjacent cutting blades 11. The two cutting blades 11 in the same group correspond to one shell and are used to cut the waste materials on both sides of the same shell. The cutting blades 11 in the same group also correspond to a suction hole 13, which is used to suck the cut shell onto the unloading tray 1.

[0033] Reference Figure 3Several cutting rods 112 are fixedly connected to the side wall of the blanking tray 1 facing the static mold. Each group of two cutting rods 112 corresponds to a cutting blade 11. The cutting blade 11 is hinged to the two cutting rods 112 in the same group, and the length of the cutting rods 112 extends toward the static mold. A first torsion spring 14 is sleeved on the rotating shaft of the cutting blade 11. One end of the first torsion spring 14 is fixedly connected to the outer wall of the rotating shaft of the cutting blade 11, and the other end of the first torsion spring 14 is fixedly connected to the side wall of the cutting rod 112. The first torsion spring 14 is used to rotate the extension rod 12 toward the static mold. When the first torsion spring 14 maintains a balanced state, the length of the extension rod 12 faces the static mold, and the length of the cutting blade 11 faces the blanking tray 1.

[0034] Reference Figure 3 Several stabilizing rings 24 are fixedly connected to the unloading tray 1. The stabilizing rings 24 are used to be sleeved on the outer ring of the shell. One stabilizing ring 24 is used to correspond to one shell in the full version of the shell formed by one-time injection molding of the static mold, that is, two cutting knives 11 and one stabilizing ring 24 are a group.

[0035] Reference Figure 3 and Figure 4 Several deburring assemblies 2 are mounted on the blanking tray 1. The blanking tray 1 is provided with a sliding groove 25 that extends toward the corresponding stabilizing ring 24. The size of the opening of the sliding groove 25 is smaller than the cross-sectional size of the interior of the sliding groove 25. The deburring assemblies 2 include a knife holder 21 that slides within the sliding groove 25 and a bayonet 22 mounted on the knife holder 21 for scraping burrs. The bayonet 22 abuts against the stabilizing ring 24. The knife holder 21 is adapted to the sliding groove 25, and the sidewall of the knife holder 21 fits in contact with the inner wall of the sliding groove 25. A second spring 251 is mounted within the sliding groove 25. One end of the second spring 251 is fixedly connected to the inner wall of the sliding groove 25, and the other end of the second spring 251 is fixedly connected to the sidewall of the knife holder 21. The second spring 251 is used to pull the knife holder 21 to slide toward the corresponding stabilizing ring 24.

[0036] Reference Figure 3 and Figure 4 Each knife holder 21 corresponds to a cutting knife 11. A support rod 23 is rotatably connected to the knife holder 21, and a third torsion spring 231 is sleeved on the rotating shaft of the support rod 23. One end of the third torsion spring 231 is fixedly connected to the outer wall of the rotating shaft of the support rod 23, and the other end of the third torsion spring 231 is fixedly connected to the side wall of the knife holder 21. The scraper 22 is fixedly connected to the end of the support rod 23 away from the knife holder 21, and the blade of the scraper 22 contacts the outer wall of the stabilizing ring 24. A rope 211 is fixedly connected to the extension rod 12. The rope 211 is inserted into the unloading tray 1 and passes through the sliding groove 25. The other end of the rope 211 is fixedly connected to the side wall of the knife holder 21.

[0037] Reference Figure 3 and Figure 4 Four guide plates 3 are rotatably connected to the stabilizing ring 24. These four guide plates 3 are hinged at the four corners of the stabilizing ring 24, with two guide plates 3 forming a group. A second torsion spring 31 is sleeved around the guide plate 3's rotating shaft. One end of the second torsion spring 31 is fixedly connected to the outer wall of the guide plate 3's rotating shaft, and the other end of the second torsion spring 31 is fixedly connected to the stabilizing ring 24. The second torsion spring 31 is used to rotate the guide plate 3 toward the opening of the stabilizing ring 24. Two pull ropes 32 are fixedly connected to the blade back of the cutting blade 11. The other ends of the pull ropes 32 are fixedly connected to the side walls of the two guide plates 3 in the same group. The pull ropes 32 are used to pull the guide plates 3 away from the opening of the stabilizing ring 24 and open it. The cutting blade 11 rotates and pulls the guide plates 3.

[0038] Reference Figure 2 A receiving plate 4 for receiving the cut waste is rotated on the side wall of the feed tray 1 facing the ground. The receiving plate 4 is hinged to the side wall of the feed tray 1. A chute 42 is provided on the side wall of the main body 111. The chute 42 is opened in a direction perpendicular to the sliding direction of the feed tray 1. A resistance block 41 slides in the chute 42. The resistance block 41 is fitted against the inner wall of the chute 42 and is used to prevent the receiving plate 4 from rotating to pour the waste.

[0039] Reference Figure 2 A first spring 43 is installed in the chute 42. One end of the first spring 43 is fixedly connected to the inner wall of the chute 42, and the other end of the first spring 43 is fixedly connected to the side wall of the interference block 41. The first spring 43 is used to keep the interference block 41 in contact with the material receiving plate 4. A first guide surface 411 and a second guide surface 412 are provided on the end of the interference block 41 located outside the chute 42. The first guide surface 411 faces the direction of the static mold, and the second guide surface 412 faces the direction of the dynamic mold. The first guide surface 411 is inclined in the direction of the position closer to the static mold and farther away from the ground, and the second guide surface 412 is inclined in the direction of the position farther away from the static mold and farther away from the ground. Two boxes for storing waste and shells are placed on the main body 111, respectively. The two boxes are located on both sides of the interference block 41.

[0040] Reference Figure 2 A stabilizing bar 44 is fixedly connected to the side wall of the receiving plate 4 near the static mold. The length of the stabilizing bar 44 extends circumferentially. The stabilizing bar 44 is located on the side wall of the receiving plate 4 near the static mold where the rotating shaft of the receiving plate 4 is located. The stabilizing bar 44 is used to enclose the waste material that falls after cutting. An inclined block 45 is fixedly connected between the stabilizing bar 44 and the side wall of the receiving plate 4. That is, the inclined block 45 is located within the encirclement of the stabilizing bar 44 and connects the side wall of the receiving plate 4 with the side wall of the stabilizing bar 44 away from the receiving plate 4.

[0041] The implementation principle of a connector injection molding machine according to an embodiment of the present application is as follows: after injection molding is completed, the movable mold and the static mold are opened, and the unloading tray 1 slides toward the static mold. When the extension rod 12 contacts the static mold, the unloading tray 1 continues to slide, and the static mold pushes the extension rod 12 to rotate, which then drives the cutting blade 11 to rotate and cut the waste material. During the rotation of the extension rod 12, the rope 211 extends into the sliding groove 25. At this time, the second spring 251 pulls the knife seat 21 to slide toward the corresponding stabilizing ring 24. At this time, the scraper 22 contacts the stabilizing ring 24 and slides toward the side wall of the housing clamped by the stabilizing ring 24, thereby scraping the burrs on the housing. During the rotation of the extension rod 12, the cutting blade 11 rotates and pulls the pull rope 32, which opens the guide plate 3 through the pull rope 32, and guides the stabilizing ring 24 to be sleeved outside the housing through the guide plate 3.

[0042] The cut waste falls on the material receiving plate 4. At this time, the sliding material receiving plate 1 slides in the direction away from the static mold. When the material receiving plate 4 touches the resistance block 41, the material receiving plate 4 will tilt along the inclination direction of the first guide surface 411. At this time, the material receiving plate 4 pours the waste into the corresponding box. When the material receiving plate 1 continues to slide until the material receiving plate 4 shaft pushes the resistance block 41, when the material receiving plate 4 shaft is released from the resistance block 41, the material receiving plate 4 shaft will be located on the side of the resistance block 41 away from the static mold. At this time, the material receiving plate 4 will tilt along the inclination direction of the second guide surface 412. At this time, the suction hole 13 releases the adsorption of the shell, and the shell will fall into the corresponding box.

[0043] The above are all preferred embodiments of the present application, and are not intended to limit the scope of protection of the present application. Therefore, any equivalent changes made based on the structure, shape, and principle of the present application should be included in the scope of protection of the present application.

Claims

1. A connector injection molding machine, characterized in that: The invention comprises a main body (111) and a blanking disc (1), wherein the blanking disc (1) is used to cover the static mold after injection molding, a cutting knife (11) for cutting waste is rotatably provided on the blanking disc (1), an extension rod (12) is provided on the end of the cutting knife (11), and the extension rod (12) is used to abut against the static mold to drive the cutting knife (11) to rotate, a suction hole (13) is provided on the blanking disc (1), and the suction hole (13) is used to suck the shell; a first torsion spring (14) is provided on the rotating shaft of the cutting knife (11), and the first torsion spring (14) is used to rotate the extension rod (12) in the direction toward the static mold, and a deburring assembly (2) is provided on the blanking disc (1), and the deburring assembly (2) comprises a knife seat (21) slidably provided on the blanking disc (1) and a tool provided on the knife seat (21) for scraping hair. The scraper (22) is stabbed, and the cutting knife (11) rotates to push the knife seat (21) to slide; a support rod (23) is rotatably provided on the knife seat (21), and the scraper (22) is arranged on the support rod (23); a stabilizing ring (24) is provided on the unloading disc (1), and the stabilizing ring (24) is sleeved on the outer ring of the shell, and the scraper (22) is in contact with the stabilizing ring (24); a guide plate (3) is rotatably provided on the stabilizing ring (24), and a second torsion spring (31) is provided on the rotating shaft of the guide plate (3), and the second torsion spring (31) is used to rotate the guide plate (3) toward the direction of approaching the opening surface of the stabilizing ring (24); a pull rope (32) is provided on the cutting knife (11), and the other end of the pull rope (32) is provided on the guide plate (3), and the cutting knife (11) rotates to pull the guide plate (3).

2. A connector injection molding machine according to claim 1, characterized in that: A receiving plate (4) for receiving the cut waste is rotatably provided on the discharge tray (1), and a resisting block (41) is provided on the main body (111). The resisting block (41) is used to resist the receiving plate (4) to rotate and dump the waste.

3. A connector injection molding machine according to claim 2, characterized in that: The main body (111) is provided with a sliding groove (42) for the resistance block (41) to be inserted and slided. The resistance block (41) is provided with a first spring (43) for keeping the resistance block (41) in contact with the material receiving plate (4).

4. The connector injection molding machine according to claim 2, characterized in that: The material receiving plate (4) is provided with a stabilizing strip (44), the stabilizing strip (44) being used to enclose the waste material, and an inclined block (45) is provided between the stabilizing strip (44) and the material receiving plate (4).

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