A plastic material feeding device for plastic product production

Abstract

The utility model relates to the technical field of plastic product processing equipment, concretely relates to a plastic product production's plastic material feeding device, including frame, set up in the storage box of frame and the ration box that slides and connects in frame and is located the below of storage box, ration box is driven by cylinder no.

Description

Technical Field

[0001] This utility model relates to the technical field of plastic product processing equipment, and in particular to a plastic material feeding device for plastic product production. Background Technology

[0002] In the production process of plastic products, the feeding stage, in which granular or powdered plastic raw materials are transported from storage containers to processing equipment such as injection molding machines and extruders, is the starting point and a crucial step in ensuring the stable operation of the entire production line. The accuracy and continuity of feeding directly affect the quality of subsequent melting, plasticizing, and molding processes, and thus determine the performance and yield of the final product.

[0003] Currently, many small and medium-sized plastic processing enterprises still use relatively traditional material feeding methods. For example, weighing, handling, and dumping are done manually. This method is not only labor-intensive and inefficient, but also prone to large fluctuations in the amount of material fed each time due to human error and fatigue, making it difficult to ensure uniform and stable production.

[0004] To improve this situation, some semi-automated feeding equipment has emerged in the industry, such as simple screw conveyors or suction feeders. While these devices have achieved automated material conveying to a certain extent and reduced the physical labor of workers, they often have design flaws in the core aspect of "quantitative feeding." Most simple feeders can only achieve continuous material conveying but cannot accurately control the dosage of material fed onto the production line in a single batch. When batch feeding with fixed dosage is required, these devices often rely on coarse control of feeding time, which is easily affected by unstable factors such as changes in material flowability and pipe blockage, resulting in a significant error between the actual feeding amount and the preset value. This fails to meet the high requirements of modern precision production for consistent raw material supply. Therefore, this utility model proposes a plastic material feeding device for plastic product manufacturing to address the shortcomings of the existing technology. Utility Model Content

[0005] The purpose of this utility model is to provide a plastic material feeding device for the production of plastic products, which solves the problem that some existing plastic material feeding devices for the production of plastic products are difficult to achieve precise quantitative control during the feeding process, resulting in poor stability of batch feeding.

[0006] This utility model provides a plastic material feeding device for the production of plastic products, including: a frame, a storage box disposed in the frame, and a metering box slidably connected to the frame and located below the storage box, wherein the output end of a cylinder is fixedly connected to the side wall of the metering box; the device also includes a rotating plate and a partition plate.

[0007] The rotating plate is rotatably connected to the bottom of the metering box via a pin, while the frame is provided with a corresponding support edge to support the free end of the rotating plate.

[0008] Furthermore, the partition plate is fixedly connected to the rear side wall of the metering box. This combination allows the free end of the rotating plate to overlap the support edge to close the metering box and receive the material when the metering box is not pushed out by the cylinder. When the metering box is pushed out, the rotating plate will automatically open to unload the material as it is detached from the support edge. At the same time, the partition plate, which moves with the metering box, will move synchronously to the bottom of the storage box's discharge port to temporarily block the upstream material.

[0009] Preferably, the plastic material feeding device for plastic product manufacturing further includes a feeding component, which includes a storage tank and a transmission pipe located at the bottom of the equipment. The inlet end of the transmission pipe is connected to the storage tank, and its outlet end extends to the top inlet of the storage box, for stably conveying the material from the bottom to the storage box above.

[0010] Preferably, the device also includes a base plate and a conveyor belt disposed on the base plate; it also includes a discharge pipe with its inlet located below the unloading path of the metering box and its outlet facing the top of the conveyor belt, specifically designed to collect and accurately guide the material falling from the metering box to the central area of ​​the conveyor belt.

[0011] Preferably, the device is further provided with an anti-deviation mechanism, which includes a frame spanning above the conveyor belt and a second cylinder fixed on the frame; the output end of the second cylinder is connected to a drive rod arranged in the vertical direction, which is used to perform stable up-and-down reciprocating motion under the drive of the second cylinder, providing a power source for the anti-deviation function.

[0012] Preferably, the anti-deviation mechanism further includes a pair of driving blocks, which are symmetrically arranged on both sides of the driving rod. Each driving block has an inclined groove inside for the driving rod to slide through. This structural configuration allows the up-and-down movement of the driving rod to be efficiently converted into the reciprocating movement of the driving block in the horizontal direction through the sliding cooperation between the inclined surface and the outer wall of the rod.

[0013] Preferably, the anti-deviation mechanism further includes a second drive rod and a correction plate; the second drive rod is a horizontal rod that is fixedly connected between a pair of drive blocks and slidably disposed in the horizontal groove of the correction plate; the correction plate is located directly above the conveyor belt and is driven by the second drive rod to achieve left and right reciprocating motion, so as to beat and organize the material on the conveyor belt with the side edge of the plate.

[0014] Preferably, the anti-deviation mechanism further includes a limiting block, which is fixedly installed on the drive rod and located on the movement path of the drive block. By mechanically abutting against the end face of the drive block, it is used to precisely limit the movement stroke of the drive block, thereby ensuring that the reciprocating swing range of the correction plate is always within a reasonable range.

[0015] This utility model relates to a plastic material feeding device for the production of plastic products. The beneficial effects of the technical solution: 1. This utility model solves the problems of unstable feeding and difficulty in achieving continuous and accurate metering when manual or simple mechanical feeding is carried out by setting a metering box driven by a cylinder and using the coordinated design of the metering box pushing out to unload the material, with the partition plate simultaneously blocking the upstream material inlet and the rotating base plate automatically opening. This achieves the technical effect of automated, high-precision, and repeatable supply of plastic material, thereby ensuring the stability of subsequent production processes and the consistency of product quality.

[0016] 2. This utility model, by setting up an anti-deviation mechanism, cleverly converts the vertical movement of the cylinder into the horizontal reciprocating movement of the correction plate via a drive block with an inclined slide groove. This solves the problem that plastic materials easily scatter and deviate after falling onto the conveyor belt, affecting the uniformity of subsequent processing. It achieves the technical effect of automatically aligning the materials and keeping them centered on the conveyor belt, thereby improving the processing efficiency of subsequent processes and reducing material loss.

[0017] 3. This utility model integrates three major functions—automatic feeding, precise quantitative measurement, and anti-deviation sorting—into a single integrated linkage device. This solves the problems of independent links, large equipment footprint, and low automation in the traditional feeding process. It achieves the technical effect of compact structure, integrated functions, and fully automated feeding operation, significantly improving production efficiency and reducing the labor intensity of workers. Attached Figure Description

[0018] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the accompanying drawings used in the description of the embodiments or the prior art will be briefly introduced below.

[0019] Figure 1 This is a three-dimensional schematic diagram of a plastic material feeding device for the production of plastic products according to the present invention. Figure 2 This is a schematic diagram of the storage tank of a plastic material feeding device for plastic product manufacturing proposed in this utility model. Figure 3 for Figure 2 Enlarged view of point A in the middle; Figure 4This is a schematic diagram of the limiting block of a plastic material feeding device for producing plastic products, as proposed in this utility model.

[0020] Legend: 1. Base plate; 2. Feeding assembly; 21. Storage tank; 22. Transfer pipe; 3. Quantitative feeding; 31. Frame; 32. Cylinder 1; 33. Quantitative box; 34. Rotating plate; 35. Storage box; 36. Divider plate; 4. Conveyor belt for processing; 5. Anti-deviation mechanism; 51. Frame; 52. Cylinder II; 53. Drive rod I; 54. Drive block; 55. Limiting block; 56. Drive rod II; 57. Correction plate; 6. Feed pipe. Detailed Implementation

[0021] The embodiments of the present invention are described in detail below. Examples of the embodiments are shown in the accompanying drawings. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain the present invention, but should not be construed as limiting the present invention.

[0022] Example: Reference Figures 1 to 4 This utility model provides a plastic material feeding device for the production of plastic products, which aims to solve the problems of difficulty in achieving accurate and continuous quantitative feeding and easy material deviation on the conveyor belt in the existing technology.

[0023] like Figures 1 to 3 As shown, it includes a base plate 1 and a quantitative feeding mechanism 3 disposed on the base plate 1; the quantitative feeding mechanism 3 includes a frame 31, a storage box 35 disposed inside the frame 31, and a quantitative box 33 located below the storage box 35 is slidably connected to the frame 31. The side wall of the quantitative box 33 is fixedly connected to the output end of a cylinder 32 by bolts, and the cylinder body of the cylinder 32 is fixed to the frame 31.

[0024] The specific structure of the quantitative feeding mechanism 3 is as follows: the bottom of the quantitative box 33 is rotatably connected to a rotating plate 34 via a pin, and the rotating plate 34 can swing freely around its connection with the quantitative box 33; correspondingly, the frame 31 is provided with an integrally formed support edge for supporting the free end of the rotating plate. When the quantitative box 33 is not pushed out under the drive of the cylinder 32 and is in the initial position, the free end of the rotating plate 34 just overlaps the top surface of the support edge, thereby stably closing the bottom opening of the quantitative box 33 under the action of gravity, so that the material falling from the storage box 35 can be received inside the quantitative box 33; furthermore, the rear side wall of the quantitative box 33, that is, the side wall near the feeding port of the storage box 35... On one side, a partition plate 36 perpendicular to it is fixedly connected. The size of the partition plate 36 can completely cover the discharge port of the storage box 35. When the output end of the cylinder 32 extends and drives the metering box 33 to slide forward, the free end of the rotating plate 34 is released from the support of the support edge and flips downward under the gravity of the material inside the metering box 33 to complete the unloading action. At the same time, the partition plate 36 fixed on the metering box 33 will slide synchronously to directly below the discharge port of the storage box 35 as the metering box 33 is pushed out, temporarily blocking the material flow from the storage box 35, ensuring that no additional material enters the metering area before the unloading is completed and the metering box 33 is reset.

[0025] It also includes a feeding assembly 2 that provides materials to the quantitative feeding mechanism 3, and a conveyor belt 4 for receiving and transporting the metered materials; Reference Figure 1 The feeding component 2 includes a storage tank 21 located at the bottom of the equipment and a transmission pipe 22 connected to the storage tank 21. The storage tank 21 is used to hold plastic raw materials to be processed in batches. The inlet end of the transmission pipe 22 is connected to the outlet of the storage tank 21, and its outlet end extends upward and opens above the top inlet of the storage box 35 in the quantitative feeding mechanism. The built-in air pump generates airflow to pump the material in the storage tank 21 into the storage box 35, forming the upstream material supply. Below the quantitative feeding mechanism 3, a conveyor belt 4 is also installed on the base plate 1. The running plane of the conveyor belt 4 is lower than the unloading position of the quantitative box 33. The device also includes a feeding pipe 6 located below the quantitative box 33. The inlet of the feeding pipe 6 is funnel-shaped and its position is directly opposite the unloading area opened by the rotating plate 34 when the quantitative box 33 is pushed out. The outlet of the feeding pipe 6 is vertically facing the top center of the conveyor belt 4, so as to accurately guide the quantitative material unloaded from the quantitative box 33 to the conveyor belt 4 for subsequent processing.

[0026] like Figure 1 and Figure 4As shown, it also includes an anti-deviation mechanism 5; the anti-deviation mechanism 5 includes a frame 51 spanning above the conveyor belt 4, and a cylinder 52 fixed on the frame 51. The frame 51 is securely installed on the two side frames of the conveyor belt 4 by welding or bolting, providing a mounting base for the entire anti-deviation mechanism 5.

[0027] It also includes a vertically arranged drive rod 53. The upper end of the drive rod 53 is connected to the output end of the cylinder 52 via a thread, and its lower end is suspended above the transmission processing belt 4. When the cylinder 52 is activated, its output end can drive the drive rod 53 to perform stable up-and-down reciprocating motion.

[0028] It also includes a pair of driving blocks 54, which are symmetrically arranged on both sides of the driving rod 53. Each driving block 54 has an inclined groove inside for the driving rod 53 to slide through. The axis of the inclined groove forms an acute angle with the direction of movement of the driving rod 53. Therefore, when the driving rod 53 moves up and down, the inner wall of the inclined groove will slide against the outer wall of the driving rod 53, thereby forcing the pair of driving blocks 54 to move outward or inward synchronously in the horizontal direction, realizing the conversion from vertical movement to horizontal movement.

[0029] It also includes a second driving rod 56 and a correction plate 57; the second driving rod 56 is a horizontal rod with its two ends fixedly connected to a pair of driving blocks 54, so that it can move horizontally synchronously with the driving blocks 54; the correction plate 57 is a plate-shaped component located directly above the transmission processing belt 4, and its plate body has a horizontal groove for the second driving rod 56 to slide in. Driven by the driving blocks 54, the second driving rod 56 slides back and forth in the horizontal groove, thereby driving the entire correction plate 57 to move left and right reciprocating above the transmission processing belt 4, and straightening the plastic material through its side.

[0030] It also includes a limiting block 55, which is fixedly installed on the rod body of the drive rod 53 by a set screw and is located on the movement path of the drive block 54. By abutting the upper end face of the drive block 54 with its lower end face, the upward movement stroke of the drive block 54 can be precisely limited, thereby indirectly controlling the final movement range of the correction plate 57.

[0031] The working principle is as follows: First, the staff pours the plastic material into the storage tank 21. The air pump in the feeding component 2 is started and the plastic material is conveyed upward through the transmission pipe 22 and piled up in the storage box 35. The material falls naturally under the action of gravity and fills the metering box 33 located below it. At this time, the bottom of the metering box 33 is closed by the rotating plate 34, and the rotating plate 34 is stably supported by the support edge of the frame 31.

[0032] When material needs to be fed, the control system activates cylinder 32, which extends to push the metering box 33 forward. At the instant the metering box 33 slides out, the partition plate 36 on its rear side moves synchronously to below the feeding port of the storage box 35, temporarily preventing further feeding. Simultaneously, the rotating plate 34 at the bottom of the metering box 33, having lost its support edge, flips downwards under the force of gravity, allowing the plastic material inside the metering box 33 to fall accurately through the feeding pipe 6 to the top of the conveyor belt 4. Subsequently, the output end of cylinder 32 retracts, pulling the metering box 33 back to its original position. The rotating plate 34 is then supported by the support edge again, sealing its bottom. The partition plate 36 also moves away, allowing the material in the storage box 35 to fall again, completing the automatic replenishment of the metering box 33 and achieving a precise and automatic metering feeding cycle.

[0033] After the plastic material falls onto the conveyor belt 4, the control system activates cylinder 2 52, which drives the first drive rod 53 to move downward. Since the first drive rod 53 passes through the inclined groove inside the drive block 54, its downward movement forces the drive block 54 to move horizontally. The second drive rod 56, which is fixed to the drive block 54, slides in the horizontal groove of the correction plate 57, causing the correction plate 57 to perform a lateral reciprocating motion. The side edge of the correction plate 57 beats and straightens the plastic material on the conveyor belt 4, causing it to gather in the center of the conveyor belt, preventing the material from deviating and scattering during subsequent conveying.

Claims

1. A plastic material feeding device for the production of plastic products, characterized in that, include: frame; Storage box set within the frame; A metering box is slidably connected to the frame and located below the storage box, and the output end of a cylinder is fixedly connected to the side wall of the metering box; The bottom of the metering box is rotatably connected to a rotating plate via a pin. The frame is provided with a support edge for supporting the free end of the rotating plate. When the metering box is not pushed out by the first cylinder, the free end of the rotating plate overlaps the support edge to close the bottom of the metering box. A partition plate is also fixedly connected to the rear side wall of the metering box. When the metering box is pushed out by the first cylinder to disengage the rotating plate from the support edge and unload the material, the partition plate moves synchronously with the metering box to below the discharge port of the storage box to block the material.

2. The plastic material feeding device for producing plastic products according to claim 1, characterized in that, It also includes a feeding assembly, which includes a storage tank and a transfer pipe located at the bottom of the equipment. The inlet end of the transfer pipe is connected to the storage tank, and its outlet end extends to the top inlet of the storage box.

3. The plastic material feeding device for producing plastic products according to claim 1, characterized in that, It also includes a base plate and a conveyor belt disposed on the base plate. The device also includes a discharge pipe with its inlet located below the unloading path of the metering box and its outlet facing the top of the conveyor belt.

4. The plastic material feeding device for producing plastic products according to claim 3, characterized in that, It also includes an anti-deviation mechanism, which includes a frame spanning above the conveyor belt and a cylinder fixed to the frame.

5. A plastic material feeding device for producing plastic products according to claim 4, characterized in that, The anti-deviation mechanism also includes a drive rod, which is arranged vertically and its upper end is connected to the output end of the cylinder, and is used to perform up-and-down reciprocating motion under the drive of the cylinder.

6. A plastic material feeding device for producing plastic products according to claim 5, characterized in that, The anti-deviation mechanism also includes a pair of driving blocks, which are symmetrically arranged on both sides of the driving rod. Each driving block has an inclined groove inside for the driving rod to slide through, so as to drive the driving block in the horizontal direction when the driving rod moves up and down.

7. A plastic material feeding device for producing plastic products according to claim 6, characterized in that, The anti-deviation mechanism also includes a second drive rod and a correction plate. The second drive rod is fixedly connected between the paired drive blocks. The correction plate is located above the transmission processing belt. A horizontal groove is provided on the plate body for the second drive rod to slide. The second drive rod slides in the horizontal groove to drive the correction plate to reciprocate left and right.

8. A plastic material feeding device for producing plastic products according to claim 6, characterized in that, The anti-deviation mechanism also includes a limiting block, which is fixedly installed on the first drive rod and located on the movement path of the drive block, and is used to limit its stroke by abutting against the end face of the drive block.

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