Blanking protection device
By designing protective net frames, buffer plates, and limiting baffles, the problems of injection molded products falling and rubbing during the conveying process were solved, achieving stable conveying and protection of the products.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- KUNSHAN DINGYUAN ELECTRONIC TECH CO LTD
- Filing Date
- 2025-05-20
- Publication Date
- 2026-05-01
AI Technical Summary
Injection-molded products are prone to springback and rolling during the conveying process, causing them to fall off the outside of the conveyor belt, which affects production efficiency and product yield.
A material feeding protection device was designed, including a protection mechanism, a buffer mechanism, and a lifting support mechanism. The product position is restricted by a protective mesh frame, and elastic buffering is provided by a buffer plate and a support spring. The limiting distance is adjusted in conjunction with the limiting baffle and the lifting protective plate to prevent the product from falling and rubbing.
It effectively prevents injection molded products from falling and rubbing during transportation, reduces impact, minimizes collision deformation and damage, and improves production efficiency and product yield.
Smart Images

Figure CN224183574U_ABST
Abstract
Description
A material discharge protection device Technical Field
[0001] This utility model belongs to the field of product unloading protection technology, and in particular relates to an unloading protection device. Background Technology
[0002] Injection molded products are products made by heating and plasticizing plastic with an injection molding machine, then injecting it into the cavity of a mold, cooling it down, and demolding the melt after it solidifies. On an injection molding production line, robotic arms are usually used to remove the molded products from the mold and transfer them to a conveyor belt.
[0003] An existing patent (publication number: CN215151267U) discloses a material feeding protection mechanism for an injection molding machine, including side plates, drive rollers, connecting shafts, transmission belts, connecting rods, support rods, motors, guide plates, support blocks, threaded rods, and connecting blocks; two sets of drive rollers are rotatably connected to the end faces of two sets of side plates that are close to each other via the connecting shafts; the transmission belt is sleeved on the outside of the two sets of drive rollers; both ends of the connecting rods are connected to the two sets of side plates; the lower end face of each connecting rod is connected to the two sets of support rods; the motor is installed on one side of the support rods and is connected to the drive rollers; one end face of the guide plate is rotatably connected to a set of connecting rods via a hinge, and guard plates are provided on both sides of the upper end face of the guide plate.
[0004] However, during the injection molding process, due to differences in product weight, shape, and conveyor belt inclination angle, products are prone to rebound and rolling after leaving the robot arm. This can cause products to fall off the outside of the conveyor belt, resulting in product damage or stains, which seriously affects production efficiency and product yield. Therefore, a material discharge protection device is proposed to solve the above problems. Summary of the Invention
[0005] To address the shortcomings of existing technologies, this application provides a material discharge protection device that limits the initial drop position of injection molded products, prevents friction or jamming between the product and its inner wall during conveying, and prevents injection molded products from falling during conveying. This solves the problem mentioned in the aforementioned prior art that products are prone to rebound and rolling after leaving the robotic arm, which can easily cause products to fall off the outside of the conveyor belt, resulting in product damage or stains, and seriously affecting production efficiency and product yield.
[0006] To achieve the above objectives, this application provides the following technical solution: a material feeding protection device, comprising a conveyor bed, a protective mechanism fixedly installed on the outer surface of the conveyor bed, a buffer mechanism fixedly installed on the inner wall of the protective mechanism, the buffer mechanisms being symmetrically arranged on the inner wall of the protective mechanism, support members fixedly installed on both sides of the conveyor bed, an adjusting screw threadedly connected to the inner wall of the support member, a limit baffle connected to one end of the adjusting screw, a lifting support mechanism provided on the top of the conveyor bed, and a lifting protection component slidably connected to the outer surface of the lifting support mechanism.
[0007] The above solution involves installing the protective mechanism above the conveyor bed and symmetrically installing the buffer mechanism inside the protective mechanism. When the robot arm picks up the injection molded product and drops it from above the conveyor bed, it falls along the inside of the protective mechanism and is cushioned by the buffer mechanism, reducing the impact force on the conveyor bed and minimizing collision deformation and damage. As the conveyor bed continues to transport the product, the limiting baffle can be adjusted by adjusting the screw and the limiting baffle to limit the distance between the two sides of the product. This, combined with the lifting and lowering protective components above, prevents the product from falling off the surface of the conveyor bed.
[0008] Furthermore, the protective mechanism includes a protective mesh frame, and connecting plates are bolted to both sides of the protective mesh frame. There are two sets of connecting plates, and the two sets of connecting plates are fixedly connected to both sides of the conveyor bed.
[0009] The above solution involves bolting two sets of connecting plates to be installed on both sides of the conveyor bed and fixing the connecting plates to the protective mesh frame. This allows the connecting plates to support the protective mesh frame at a certain height, ensuring that the injection-molded product is contained inside the protective mesh frame after it is removed from the robotic arm, preventing it from rolling out of the conveyor bed.
[0010] Furthermore, the buffer mechanism includes an inner mounting plate, a buffer plate is hinged to the top of the inner mounting plate, a support spring is fixedly connected between the buffer plate and the inner mounting plate, and the buffer plate is symmetrically arranged on the inner wall of the protective mesh frame.
[0011] With the above solution, by fixing the inner mounting plate to both sides of the inner wall of the protective mesh frame, when the injection molded product falls into the interior of the protective mesh frame, it comes into contact with the top of the buffer plate and is then cushioned by the elasticity of the support spring, so that the product falls onto the conveyor bed through the gap between the two sets of buffer plates. This reduces the impact force on the conveyor bed when the product is unloaded, and also reduces the collision and friction on itself.
[0012] Furthermore, the support member includes a support block, a vertical screw is rotatably connected inside the support block, a horizontal block is threadedly connected to the outer surface of the vertical screw, and an adjusting screw passes through the interior of the horizontal block and is threadedly connected to it.
[0013] With the above solution, by fixing the support block to the side of the conveyor bed, the height of the horizontal block can be adjusted by using a vertical screw on the side of the conveyor bed, thereby adjusting the limiting height of the limiting baffle. By rotating the adjusting screw, the limiting baffle can be moved along its axial direction, so that the limiting baffle can be extended in the lateral direction of the conveyor bed, so as to adjust the spacing of its limiting and blocking according to the product, and achieve a better limiting and blocking effect.
[0014] Furthermore, the lifting support mechanism includes a lifting support rod, and a limit insertion hole is formed on the outer surface of the lifting support rod. The number of limit insertion holes is set to a plurality of them, and a limit insertion rod is inserted into the outer surface of the lifting support rod.
[0015] The above solution connects the lifting protection component to the outside of the lifting support rod. By pushing the lifting protection component, it can slide and move outside the lifting support rod until it moves to the appropriate position. Then, the limiting rod passes through the corresponding limiting hole to fix it, thus providing stable support and height adjustment for the lifting protection component.
[0016] Furthermore, the lifting protection assembly includes a lifting protection plate, and bases are fixedly installed on both sides of the lifting protection plate. The bases penetrate the outside of the lifting support rod and are slidably connected to it.
[0017] With the above solution, when the lifting protective plate is pushed, it can move axially along the lifting support rod to drive the base to move. After moving to the appropriate position, it is fixed again with the limit rod, which makes it easy to adjust the protective height of the lifting protective plate according to the size of the product and prevent the product from rubbing against or getting stuck on its inner wall during transportation.
[0018] Furthermore, a slide bar is fixedly installed on the top of the conveyor bed, and two sets of slide bars are provided.
[0019] The above solution uses a sliding rod that passes through the two sets of bases to provide limiting support for the lifting protective plate, making it more stable.
[0020] Furthermore, vertical through slots are provided on both sides of the lifting protective plate.
[0021] The above solution allows the vertical slot to provide an extension channel for the adjusting screw, ensuring that the adjustment operations of the lifting protective plate and the adjusting screw do not interfere with each other.
[0022] Compared with the prior art, the technical solution of this application has the following beneficial effects:
[0023] This material feeding protection device involves installing a protective mechanism above the conveyor bed and symmetrically installing a buffer mechanism inside the protective mechanism. When the robot arm picks up the injection molded product and drops it from above the conveyor bed, the product falls along the inner side of the protective mechanism and is elastically cushioned by the buffer mechanism, reducing the impact force on the conveyor bed and minimizing collision deformation and damage. As the conveyor bed continues to transport the product, the limiting baffle can be adjusted by adjusting the screw and the limiting baffle to limit the protective distance on both sides of the product. This, combined with the lifting and lowering protective component above, prevents the product from falling off the surface of the conveyor bed. Attached Figure Description
[0024] Figure 1 is a schematic diagram of the overall structure of this utility model;
[0025] Figure 2 is a top view of the protective mesh frame of this utility model;
[0026] Figure 3 is a structural schematic diagram of the connecting plate of this utility model;
[0027] Figure 4 is an enlarged structural schematic diagram of point A in Figure 3 of this utility model;
[0028] Figure 5 is a structural schematic diagram of the limiting baffle of this utility model;
[0029] Figure 6 is a schematic diagram of the structure of the buffer plate of this utility model.
[0030] The markings in the diagram are as follows: 1. Conveyor bed; 2. Protective mechanism; 3. Buffer mechanism; 4. Support component; 5. Adjusting screw; 6. Limiting baffle; 7. Lifting support mechanism; 8. Lifting protective assembly; 201. Protective mesh frame; 202. Connecting plate; 301. Inner mounting plate; 302. Buffer plate; 303. Support spring; 401. Support block; 402. Vertical screw; 403. Horizontal block; 701. Lifting support rod; 702. Limiting insertion hole; 703. Limiting insertion rod; 801. Lifting protective plate; 802. Base; 10. Slide rod; 803. Vertical through groove. Detailed Implementation
[0031] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.
[0032] Please refer to Figures 1, 2, and 5. In this embodiment, a material feeding protection device includes a conveyor bed 1. A protective mechanism 2 is fixedly installed on the outer surface of the conveyor bed 1. A buffer mechanism 3 is fixedly installed on the inner wall of the protective mechanism 2. The buffer mechanisms 3 are symmetrically arranged on the inner wall of the protective mechanism 2. Support members 4 are fixedly installed on both sides of the conveyor bed 1. An adjusting screw 5 is threadedly connected to the inner wall of the support member 4. One end of the adjusting screw 5 is connected to a limit baffle 6. A lifting support mechanism 7 is provided on the top of the conveyor bed 1. A lifting protection assembly 8 is slidably connected to the outer surface of the lifting support mechanism 7. By installing the protective mechanism 2 above the conveyor bed 1… The buffer mechanism 3 is symmetrically installed inside the protective mechanism 2. When the robot arm picks up the injection molded product and drops it above the conveyor bed 1, it falls along the inside of the protective mechanism 2 and is cushioned by the buffer mechanism 3. This reduces the impact of the product on the conveyor bed 1 and reduces its collision deformation and damage. When the conveyor bed 1 continues to convey the product, the limit baffle 6 can be adjusted by adjusting the screw 5 and the limit baffle 6 to limit the protection distance on both sides of the product. It is also protected by the lifting and lowering protective component 8 above the product to prevent it from falling off the surface of the conveyor bed 1.
[0033] Please refer to Figures 2, 3, and 6. The protective mechanism 2 includes a protective mesh frame 201. Connecting plates 202 are bolted to both sides of the protective mesh frame 201. Two sets of connecting plates 202 are provided, and each set is fixedly connected to one side of the conveyor bed 1. The buffer mechanism 3 includes an inner mounting plate 301. A buffer plate 302 is hinged to the top of the inner mounting plate 301. A support spring 303 is fixedly connected between the buffer plate 302 and the inner mounting plate 301. The buffer plates 302 are symmetrically arranged on the inner wall of the protective mesh frame 201. The two sets of connecting plates 202 are bolted to both sides of the conveyor bed 1, and the connecting plates 202 are connected to the protective mesh. The frame 201 is fixed so that the connecting plate 202 can support the protective net frame 201 at a certain height, so that the injection molded product can be restricted to fall inside the protective net frame 201 after it is released from the robot hand, preventing it from rolling out of the conveyor bed 1. By fixing the inner mounting plate 301 to both sides of the inner wall of the protective net frame 201, when the injection molded product falls into the inside of the protective net frame 201, it comes into contact with the top of the buffer plate 302 and is elastically buffered by the support spring 303, so that the product falls onto the conveyor bed 1 through the gap between the two sets of buffer plates 302, thereby reducing the impact force on the conveyor bed 1 when the product is unloaded, and also reducing the collision and friction on itself.
[0034] Please refer to Figures 2 and 3. The support member 4 includes a support block 401. A vertical screw 402 is rotatably connected inside the support block 401. A horizontal block 403 is threadedly connected to the outer surface of the vertical screw 402. An adjusting screw 5 passes through the interior of the horizontal block 403 and is threadedly connected to it. By fixing the support block 401 to the side of the conveyor bed 1, the height of the horizontal block 403 can be adjusted on the side of the conveyor bed 1 in conjunction with the vertical screw 402, thereby adjusting the limiting height of the limiting baffle 6. By rotating the adjusting screw 5, the limiting baffle 6 can be moved along its axial direction so that the limiting baffle 6 can extend in the lateral direction of the conveyor bed 1, so as to adjust the spacing of its limiting and blocking according to the product, thereby achieving a better limiting and blocking effect.
[0035] Please refer to Figures 2, 3, and 4. The lifting support mechanism 7 includes a lifting support rod 701. A limit insertion hole 702 is formed on the outer surface of the lifting support rod 701. Several limit insertion holes 702 are provided. A limit insertion rod 703 is inserted into the outer surface of the lifting support rod 701. The lifting protection assembly 8 includes a lifting protection plate 801. Bases 802 are fixedly installed on both sides of the lifting protection plate 801. The bases 802 penetrate the outside of the lifting support rod 701 and are slidably connected thereto. By connecting the lifting protection assembly 8 to the outside of the lifting support rod 701, pushing the lifting protection assembly 8 allows it to rise... The support rod 701 slides outward until it reaches the appropriate position. Then, it is fixed by the limiting rod 703 passing through the corresponding limiting hole 702. This provides stable support and height adjustment for the lifting protection assembly 8. When the lifting protection plate 801 is pushed, it can move axially along the support rod 701 to move the base 802. After moving to the appropriate position, it is fixed again with the limiting rod 703. This allows the protection height of the lifting protection plate 801 to be adjusted according to the size of the product, preventing the product from rubbing against or getting stuck on its inner wall during transportation.
[0036] In this embodiment, a material feeding protection device allows for adjustment of the height of the horizontal block 403 on the side of the conveyor bed 1 by cooperating with the support block 401 and the vertical screw 402. This adjustment, in turn, adjusts the limiting height of the limiting baffle 6, facilitating the adjustment of the spacing of the limiting baffles according to the product and achieving a better limiting and blocking effect. By fixing the inner mounting plate 301 to both sides of the inner wall of the protective mesh frame 201, and with the elastic buffering effect of the support spring 303, the injection molded product, after falling into the interior of the protective mesh frame 201, contacts the top of the buffer plate 302 and then passes through the support spring 303. The elastic buffer reduces the impact force on the conveyor bed 1 when the product is unloaded, while also reducing its own collision friction. In conjunction with the protective mesh frame 201, it restricts the drop position of the injection molded product. Through the cooperation of the lifting support rod 701 and the limiting rod 703, the lifting protective plate 801 can be longitudinally displaced, which makes it easy to adjust the protection height of the lifting protective plate 801 according to the size of the product. Together with the protective mesh frame 201, it restricts the initial drop position of the injection molded product, preventing the product from rubbing against or getting stuck with its inner wall during the conveying process, and preventing the injection molded product from falling during the process.
[0037] The working principle of the above embodiments is as follows:
[0038] Two sets of connecting plates 202 are bolted to both sides of the conveyor bed 1 and fixed to the protective mesh frame 201. When the robot arm rotates to the top of the protective mesh frame 201 and detaches from the product, the injection-molded product falls into the interior of the protective mesh frame 201. After contacting the top of the buffer plate 302, it is cushioned by the elasticity of the support spring 303, allowing the product to fall onto the conveyor bed 1 through the gap between the two sets of buffer plates 302. By fixing the support block 401 to the side of the conveyor bed 1, the vertical screw 402 is rotated to drive the horizontal block 403 to make longitudinal displacement and drive the limit. The baffle 6 is displaced, and at the same time the adjusting screw 5 is rotated to drive the limiting baffle 6 to move laterally, so that the two sets of limiting baffles 6 move closer to or further away from the inside of the conveyor bed 1. The limiting distance is adjusted according to the product needs, and the lifting protective plate 801 is pushed to move axially along the lifting support rod 701, which drives the base 802 to move. After moving to the appropriate position, the limiting plug 703 is pulled out again and inserted into the corresponding limiting plug hole 702 and the inside of the base 802, that is, the lifting protective plate 801 is fixed, so that the product is conveyed on the surface of the conveyor bed 1 along the inside of the lifting protective plate 801.
[0039] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.
[0040] Although embodiments of this application have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of this application.
Claims
1. A material discharge protection device, comprising a conveyor bed (1), characterized in that: A protective mechanism (2) is fixedly installed on the outer surface of the conveying bed (1). A buffer mechanism (3) is fixedly installed on the inner wall of the protective mechanism (2). The buffer mechanism (3) is symmetrically arranged on the inner wall of the protective mechanism (2). Support members (4) are fixedly installed on both sides of the conveying bed (1). An adjusting screw (5) is threadedly connected to the inner wall of the support member (4). One end of the adjusting screw (5) is connected to a limit baffle (6). A lifting support mechanism (7) is provided on the top of the conveying bed (1). A lifting protective component (8) is slidably connected to the outer surface of the lifting support mechanism (7).
2. The material feeding protection device according to claim 1, characterized in that: The protective mechanism (2) includes a protective mesh frame (201). Both sides of the protective mesh frame (201) are connected to connecting plates (202) by bolts. There are two sets of connecting plates (202), and the two sets of connecting plates (202) are fixedly connected to both sides of the conveyor bed (1).
3. The material feeding protection device according to claim 2, characterized in that: The buffer mechanism (3) includes an inner mounting plate (301), a buffer plate (302) is hinged to the top of the inner mounting plate (301), a support spring (303) is fixedly connected between the buffer plate (302) and the inner mounting plate (301), and the buffer plate (302) is symmetrically arranged on the inner wall of the protective net frame (201).
4. The material feeding protection device according to claim 1, characterized in that: The support member (4) includes a support block (401), a vertical screw (402) is rotatably connected inside the support block (401), a horizontal block (403) is threadedly connected to the outer surface of the vertical screw (402), and an adjusting screw (5) passes through the interior of the horizontal block (403) and is threadedly connected to it.
5. The material feeding protection device according to claim 1, characterized in that: The lifting support mechanism (7) includes a lifting support rod (701), and a limit insertion hole (702) is provided on the outer surface of the lifting support rod (701). The number of limit insertion holes (702) is set to a certain number, and a limit insertion rod (703) is inserted into the outer surface of the lifting support rod (701).
6. The material feeding protection device according to claim 5, characterized in that: The lifting protection assembly (8) includes a lifting protection plate (801), and bases (802) are fixedly installed on both sides of the lifting protection plate (801). The bases (802) penetrate the outside of the lifting support rod (701) and are slidably connected to it.
7. The material feeding protection device according to claim 1, characterized in that: The top of the conveyor bed (1) is fixedly installed with a slide rod (10), and the number of slide rods (10) is set to two sets.
8. The material discharge protection device according to claim 6, characterized in that: Vertical through slots (803) are provided on both sides of the lifting protective plate (801).
Citation Information
Patent Citations
Discharging protection mechanism for injection molding machine
CN215151267U