Injection molding machine for fine feeding particles
By using multiple feeding pipes and driving devices in the injection molding machine to drive the conveyor plate design, the convenience of uniform grinding and feeding process of plastic masterbatch is achieved, the problems of uneven wear and inconvenient feeding of the grinding roller are solved, and the equipment is extended service life.
Patent Information
- Application Number
- CN202420909121.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-04-28
- Publication Date
- 2024-12-13
- Estimated Expiration
- 2034-04-28
AI Technical Summary
When existing injection molding machines grind plastic masterbatches, the wear of the grinding rollers is uneven, resulting in a short service life of the equipment and inconvenient feeding process.
Design an injection molding machine for fine feeding particles, using multiple feeding pipes to simultaneously feed, uniformly grind the plastic masterbatch through grinding rollers, and use the driving device to drive the conveyor plate to grind again, reducing the particle size, and setting a baffle and indicator light Remind the operator to clean up and ensure the convenience and effectiveness of the feeding process.
The wear degree of each part of the grinding roller is achieved, which extends the service life of the equipment, and improves the convenience and efficiency of feeding through multiple feeding pipes and drive devices.
Smart Images
Figure CN222156428U_ABST
Abstract
Description
Technical Field
[0001] The present application relates to the field of injection molding machines, and in particular to an injection molding machine for fine feeding particles. Background Art
[0002] Injection molding machine is also called injection molding machine or injection machine. It is the main molding equipment that uses plastic molding molds to make plastic products of various shapes from thermoplastics or thermosetting plastics. The working principle of the injection molding machine is similar to that of a syringe for injection. It uses the thrust of a screw or plunger to inject the plasticized molten plastic into a closed mold cavity, and then solidifies and shapes the product. In order to obtain molten plastic with better uniformity, the plastic masterbatch will be ground before adding the material.
[0003] The utility model patent with publication number CN216914661U discloses a feeding mechanism for an injection molding machine, including a feeding box, a discharge port is fixedly connected to the bottom of the feeding box, a rotating barrel is arranged in the feeding box, and a plurality of annular through holes are opened on the outer wall of the rotating barrel, two front-to-back symmetrical grinding rollers are arranged in the rotating barrel, gears are fixedly connected to the outer walls on the left sides of the two grinding rollers, the two gears are meshed with each other, side plates are fixedly connected to the outer walls on the left and right sides of the feeding box, a first motor that provides rotational power for the gears is fixedly installed on the left side plate, and a second motor that provides rotational power for the rotating barrel is fixedly installed on the right side plate.
[0004] The filter screen plate of the stirring centrifuge is arranged at the bottom of the filter barrel. If the filter cake is to be collected after the stirring centrifugation is completed, a scraper can only be used to scrape and collect the filter screen plate, which is inconvenient. Utility Model Content
[0005] In order to make the wear of various parts of the grinding roller more uniform when grinding plastic masterbatch, the present application provides an injection molding machine for fine feeding particles.
[0006] The present application provides an injection molding machine for fine feeding particles, which adopts the following technical solution:
[0007] An injection molding machine for fine feeding particles comprises a frame, an injection molding box and a conveyor belt are arranged on the frame, a mechanical arm is slidably connected to the frame, a horizontal feeding barrel is arranged at the upper end of the injection molding box, a plurality of grinding rollers arranged horizontally and parallel to each other are rotatably connected to the inner side wall of the feeding barrel, a first driving device for driving the plurality of grinding rollers to rotate is arranged on the feeding barrel, a plurality of feeding pipes are arranged at the upper end of the feeding barrel, and the plurality of feeding pipes are evenly distributed along the axial direction of the feeding barrel.
[0008] By adopting the above technical scheme, plastic masterbatches are added into the feeding barrel through multiple feeding pipes, and multiple grinding rollers grind the plastic masterbatches to reduce the particle size of the plastic masterbatches. The masterbatches with smaller particle sizes enter the injection molding box for injection molding. After the injection molding, the plastic parts are transported to the conveyor belt through the robotic arm, and the materials are fed simultaneously through multiple feeding pipes, so that the distribution of the plastic masterbatches on the grinding roller is more uniform, and the wear degree of each part of the grinding roller is closer, thereby extending the service life of the grinding roller.
[0009] Optionally, the first driving device includes a first motor and a plurality of transmission gears, wherein the plurality of transmission gears are coaxially connected to one end of a plurality of grinding rollers respectively, and the plurality of transmission gears are meshed in sequence, and the transmission shaft of the first motor is coaxially connected to one of the transmission gears.
[0010] By adopting the above technical solution, the first motor drives the transmission gear to rotate. When the transmission gear rotates, it drives other transmission gears to rotate together through meshing, thereby driving all grinding rollers to rotate, so that one motor can drive all grinding rollers to rotate, which plays a role in saving equipment.
[0011] Optionally, a feeding hopper is provided above the feeding cylinder, and the lower end of the feeding hopper is connected to the upper ends of multiple feeding pipes.
[0012] By adopting the above technical solution, the operator adds plastic masterbatch into the feeding hopper, and the plastic masterbatch in the feeding hopper enters the feeding barrel through multiple feeding tubes. Compared with adding materials into multiple feeding tubes, using one feeding hopper to feed multiple feeding tubes at the same time is more convenient.
[0013] Optionally, a discharge trough is provided at the lower end of the feeding barrel, the lower end of the discharge trough is connected to the upper end of the injection molding box, a baffle is provided in the discharge trough, and a plurality of holes for plastic particles to pass through are opened on the baffle.
[0014] After grinding, there are still some plastic masterbatches with larger particle sizes. By adopting the above technical solution, the masterbatches with smaller particle sizes fall into the feed pipe through the holes, and the masterbatches with larger pore sizes are intercepted by the baffle, so that the pore sizes of the plastic masterbatches entering the injection molding box are smaller.
[0015] Optionally, a driving ring is coaxially connected to the inner walls of both ends of the feeding barrel, a plurality of conveying plates are provided between the two driving rings, the two ends of the plurality of conveying plates are respectively connected to the two driving rings, the plurality of conveying plates are arranged along the radial direction of the conveying barrel and are evenly distributed along the circumference of the conveying barrel, and a second driving device for driving the driving ring to rotate is provided on the feeding barrel.
[0016] By adopting the above technical solution, the driving device drives the driving ring to rotate, and the driving ring drives multiple conveying plates to rotate. When the conveying plates rotate, the plastic masterbatch is driven to the top of the grinding roller for further grinding, so that the particle size of the plastic masterbatch is reduced.
[0017] Optionally, the second driving device includes a second motor, a driving gear and a rack, the rack is arranged on the inner ring surface of the driving ring, the driving gear is coaxially arranged with the transmission shaft of the second motor, and the driving gear is meshed with the rack.
[0018] By adopting the above technical solution, the second motor drives the driving gear to rotate, and the driving gear drives the driving ring to rotate by meshing with the rack. This connection method has a relatively simple structure.
[0019] Optionally, the upper end of the baffle is arranged in a circular arc surface, and the circular arc surface of the upper end of the baffle is arranged to fit the inner circular surface of the feeding barrel.
[0020] By adopting the above technical solution, the arc-shaped baffle is more closely aligned with the movement path of the conveying plate, reducing the blind spot between the conveying plate and the baffle, thereby reducing the accumulation of plastic masterbatch on the baffle and extending the service life of the baffle.
[0021] Optionally, a vertical sliding groove is opened on the inner side wall of the discharge trough, the baffle is slidably connected in the sliding groove along the vertical direction, a vertical spring is arranged in the sliding groove, the lower end of the spring is connected to the bottom of the sliding groove, the upper end of the spring is connected to the lower end of the baffle, a first electrode is arranged at the lower end of the baffle, a second electrode is arranged at the bottom of the sliding groove, the second electrode is located directly below the first electrode, the second electrode is connected to an indicator light and the indicator light is energized when it contacts the first electrode.
[0022] By adopting the above technical solution, as the plastic masterbatch accumulates on the baffle, the baffle squeezes the spring downward and moves downward. When the baffle moves downward, it drives the first electrode to contact the second electrode so that the indicator light is energized, reminding the operator that the baffle is blocked and needs to be cleaned.
[0023] In summary, the present application includes at least one of the following beneficial technical effects:
[0024] 1. The material is added through multiple feeding pipes at the same time, so that the distribution of plastic masterbatch on the grinding roller is more uniform, and the wear degree of each part of the grinding roller is more similar, thereby extending the service life of the grinding roller;
[0025] 2. The plastic masterbatch in the feeding hopper enters the feeding barrel through multiple feeding tubes. Compared with feeding into multiple feeding tubes, it is more convenient to use one feeding hopper to feed multiple feeding tubes at the same time;
[0026] 3. The driving device drives the driving ring to rotate, and the driving ring drives multiple conveying plates to rotate. When the conveying plates rotate, the plastic masterbatch is driven to the top of the grinding roller for re-grinding, so that the particle size of the plastic masterbatch is reduced. BRIEF DESCRIPTION OF THE DRAWINGS
[0027] Figure 1 It is a schematic structural diagram of an injection molding machine for fine feeding particles according to an embodiment of the present application.
[0028] Figure 2 It is a schematic structural diagram of an injection molding machine for fine feeding particles according to an embodiment of the present application.
[0029] Figure 3 It is a schematic structural diagram of an injection molding machine for fine feeding particles according to an embodiment of the present application.
[0030] Figure 4 It is a schematic structural diagram of an injection molding machine for fine feeding particles according to an embodiment of the present application.
[0031] Explanation of the reference numerals: 1. frame; 11. injection molding box; 12. conveyor belt; 13. robotic arm; 2. feeding barrel; 21. feeding tube; 22. feeding hopper; 23. grinding roller; 24. driving ring; 25. conveying plate; 3. first driving device; 31. first motor; 32. transmission gear; 4. discharge chute; 41. baffle; 411. hole; 42. spring; 43. first electrode; 44. second electrode; 45. sliding groove; 5. second driving device; 51. second motor; 52. driving gear; 53. rack; 6. indicator light. DETAILED DESCRIPTION
[0032] The following is combined with Figure 1-4 This application is described in further detail.
[0033] The present application embodiment discloses an injection molding machine for fine feeding particles. Figure 1 An injection molding machine for fine feeding particles includes a frame 1, an injection molding box 11 and a conveyor belt 12 are installed on the frame 1, a mechanical arm 13 is slidably connected to the frame 1, the mechanical arm 13 is located above the injection molding box 11, and the mechanical arm 13 is used to transfer the workpiece after the injection molding of the injection molding box 11 is completed to the conveyor belt 12, a feeding cylinder 2 is arranged above the injection molding box 11, and the lower end of the feeding cylinder 2 is connected to the injection molding box 11 through a discharge chute 4, and the lower end of the discharge chute 4 is funnel-shaped.
[0034] Reference Figure 1 as well as Figure 2There are two horizontal grinding rollers 23 rotatably connected in the feeding barrel 2. The two grinding rollers 23 are arranged along the length direction of the feeding barrel 2. A first driving device 3 for driving the grinding rollers 23 to rotate is installed on the feeding barrel 2. The first driving device 3 includes a first motor 31 and two transmission gears 32. The two transmission gears 32 are rotatably connected to the outer wall of the feeding barrel 2 and meshed with each other. The two transmission gears 32 are coaxially connected to the two grinding rollers 23 respectively. The transmission shaft of the first motor 31 is coaxially connected to one of the transmission gears 32, so that the first driving device 31 can rotate. A motor 31 can drive two grinding rollers 23 to rotate at the same time. A plurality of feeding pipes 21 are connected to the upper end of the feeding barrel 2. The plurality of feeding pipes 21 are evenly distributed along the length direction of the feeding barrel 2. The upper ends of the plurality of feeding pipes 21 are connected to the lower end of the feeding hopper 22. The plastic masterbatch in the feeding hopper 22 enters the feeding barrel 2 through the plurality of feeding pipes 21. The plurality of feeding pipes 21 feed at the same time, so that the distribution of the plastic masterbatch on the grinding roller 23 is more uniform, and the wear degree of each part of the grinding roller 23 is closer, thereby extending the service life of the grinding roller 23.
[0035] Reference Figure 1 , Figure 2 as well as Figure 3 A vertical sliding groove 45 is provided on the inner side wall of the discharge chute 4, and a horizontal baffle 41 is slidably connected in the vertical direction in the sliding groove 45. The upper end of the baffle 41 is arranged in an arc surface, and the arc surface of the upper end of the baffle 41 is arranged to fit the inner circular surface of the feeding barrel 2. The baffle 41 is provided with a plurality of holes 411 penetrating the baffle 41 in the vertical direction. After being ground by the grinding roller 23, the plastic particles with smaller particle size will pass through the hole 411 and enter the injection molding box 11 through the discharge chute 4 for injection molding, and the plastic particles with larger particle size will be intercepted by the baffle 41.
[0036] Reference Figure 1 , Figure 3 as well as Figure 4 A vertical spring 42 is installed in the sliding groove 45, the lower end of the spring 42 is connected to the bottom of the sliding groove 45, the upper end of the spring 42 is connected to the lower end of the baffle 41, the spring 42 plays a role in supporting the baffle 41, the lower end of the baffle 41 is installed with a first electrode 43, the bottom of the sliding groove 45 is installed with a second electrode 44, the second electrode 44 is located directly below the first electrode 43, with the use of the equipment, plastic particles will accumulate on the baffle 41, so that the baffle 41 moves downward and drives the first electrode 43 to collide with the second electrode 44, the second electrode 44 is electrically connected to the indicator light 6, when the first electrode 43 and the second electrode 44 collide, the indicator light 6 is energized and lights up, thereby reminding the operator to clean the baffle 41.
[0037] Reference Figure 1 as well as Figure 2, the inner side walls at both ends of the feeding barrel 2 are coaxially connected with a driving ring 24, a plurality of conveying plates 25 are connected between the two driving rings 24, the two ends of the plurality of conveying plates 25 are respectively connected to the two driving rings 24, the plurality of conveying plates 25 are arranged along the radial direction of the conveying barrel and are evenly distributed along the circumference of the conveying barrel, and a driving device for driving the driving ring 24 to rotate is provided on the feeding barrel 2. When the conveying plate 25 rotates, the plastic masterbatch is driven to the top of the grinding roller 23 for grinding again, so that the particle size of the plastic masterbatch is reduced, and the driving device includes a second motor 51, a driving gear 52 and a rack 53, the rack 53 is fixed on the inner ring surface of the driving ring 24, the driving gear 52 is coaxially arranged with the transmission shaft of the second motor 51, and the driving gear 52 is meshed with the rack 53.
[0038] The implementation principle of an injection molding machine for fine feeding particles in an embodiment of the present application is as follows: plastic masterbatch is added into a feeding barrel 2 through a plurality of feeding pipes 21, a plurality of grinding rollers 23 grinds the plastic masterbatch to reduce the particle size of the plastic masterbatch, and the masterbatch with a smaller particle size enters the injection molding box 11 through the feeding pipe for injection molding, and the plastic parts after injection molding are transported to the conveyor belt 12 through the mechanical arm 13, and the material is fed simultaneously through a plurality of feeding pipes 21, so that the distribution of the plastic masterbatch on the grinding roller 23 is more uniform, so that the degree of wear of each part of the grinding roller 23 is more similar, thereby extending the service life of the grinding roller 23, the masterbatch with a smaller particle size falls into the feeding pipe through the hole 411, and the masterbatch with a larger aperture is intercepted by the baffle 41, so that the aperture of the plastic masterbatch entering the injection molding box 11 is smaller, and the driving device drives the driving ring 24 to rotate, and the driving ring 24 drives the plurality of conveying plates 25 to rotate, and when the conveying plate 25 rotates, the plastic masterbatch is driven to the top of the grinding roller 23 for grinding again, so that the particle size of the plastic masterbatch is reduced.
[0039] The above are all preferred embodiments of the present application, and the protection scope of the present application is not limited thereto. Therefore, any equivalent changes made according to the structure, shape, and principle of the present application should be included in the protection scope of the present application.
Claims
1. An injection molding machine for fine feeding particles, characterized in that: The invention comprises a frame (1), wherein an injection molding box (11) and a conveyor belt (12) are provided on the frame (1), a mechanical arm (13) is slidably connected to the frame (1), a horizontal feeding barrel (2) is provided at the upper end of the injection molding box (11), a plurality of grinding rollers (23) arranged horizontally and parallel to each other are rotatably connected to the inner side wall of the feeding barrel (2), a first driving device (3) for driving the plurality of grinding rollers (23) to rotate is provided on the feeding barrel (2), a plurality of feeding pipes (21) are provided at the upper end of the feeding barrel (2), and the plurality of feeding pipes (21) are evenly distributed along the axial direction of the feeding barrel (2).
2. The injection molding machine for fine feeding particles according to claim 1, characterized in that: The first driving device (3) comprises a first motor (31) and a plurality of transmission gears (32), the plurality of transmission gears (32) being coaxially connected to one end of a plurality of grinding rollers (23), respectively, the plurality of transmission gears (32) being arranged in meshing relationship in sequence, and the transmission shaft of the first motor (31) being coaxially connected to one of the transmission gears (32).
3. The injection molding machine for fine feeding particles according to claim 1, characterized in that: A feeding hopper (22) is provided above the feeding cylinder (2), and the lower end of the feeding hopper (22) is connected to the upper ends of a plurality of feeding pipes (21).
4. The injection molding machine for fine feeding particles according to claim 1, characterized in that: A discharge chute (4) is provided at the lower end of the feeding cylinder (2), the lower end of the discharge chute (4) is connected to the upper end of the injection molding box (11), a baffle (41) is provided in the discharge chute (4), and a plurality of holes (411) for plastic particles to pass through are formed on the baffle (41).
5. The injection molding machine for fine feeding particles according to claim 1, characterized in that: The inner side walls at both ends of the feeding barrel (2) are coaxially connected to drive rings (24), a plurality of conveying plates (25) are arranged between the two drive rings (24), the two ends of the plurality of conveying plates (25) are respectively connected to the two drive rings (24), the plurality of conveying plates (25) are arranged along the radial direction of the conveying barrel and are evenly distributed along the circumference of the conveying barrel, and a second driving device (5) for driving the drive ring (24) to rotate is provided on the feeding barrel (2).
6. The injection molding machine for fine feeding particles according to claim 5, characterized in that: The second driving device (5) comprises a second motor (51), a driving gear (52) and a rack (53); the rack (53) is arranged on the inner ring surface of the driving ring (24); the driving gear (52) is coaxially arranged with a transmission shaft of the second motor (51); and the driving gear (52) is meshed with the rack (53).
7. The injection molding machine for fine feeding particles according to claim 4, characterized in that: The upper end of the baffle (41) is arranged in the form of an arc surface, and the arc surface of the upper end of the baffle (41) is arranged to fit the inner circular surface of the feeding barrel (2).
8. The injection molding machine for fine feeding particles according to claim 7, characterized in that: A vertical sliding groove (45) is provided on the inner side wall of the discharge groove (4), the baffle (41) is slidably connected in the sliding groove (45) along the vertical direction, a vertical spring (42) is provided in the sliding groove (45), the lower end of the spring (42) is connected to the bottom of the sliding groove (45), the upper end of the spring (42) is connected to the lower end of the baffle (41), a first electrode (43) is provided at the lower end of the baffle (41), a second electrode (44) is provided at the bottom of the sliding groove (45), the second electrode (44) is located directly below the first electrode (43), the second electrode (44) is connected to an indicator light (6), and when the second electrode (44) is in contact with the first electrode (43), the indicator light (6) is energized.