Plastic powder quantitative feeding device

Abstract

The utility model relates to the technical field of plastic processing, in particular to a plastic powder quantitative feeding device which comprises a storage structure and a conveying structure, the storage structure comprises a storage hopper, and a feeding connector is fixedly installed on the bottom side of the storage hopper; the material conveying structure comprises a material conveying channel, the lower end of the material conveying channel fixedly communicates with a lifting starting end, the upper side of the lifting starting end fixedly communicates with a feeding channel, the feeding channel communicates with the feeding connector, the upper end of the material conveying channel fixedly communicates with a lifting terminal, and the bottom side of the lifting terminal fixedly communicates with a discharging channel. And a lifting auger is rotationally mounted in the conveying channel. The diameters of the blades at the two ends of the lifting auger are designed to be large, the lifting auger can extract a large amount of powder at the lifting starting end, a simple compression procedure is carried out on powder raw materials through the lifting starting end and the conical transition section of the conveying channel, gaps existing when the powder raw materials are conveyed in the conveying channel are reduced, and therefore the powder raw materials can be conveniently conveyed. And the feeding stability is kept.

Description

Technical Field

[0001] This utility model relates to the field of plastic processing technology, specifically a plastic powder quantitative feeding device. Background Art

[0002] The processing flow of plastic products is mostly to feed plastic powder raw materials into hot melting and mixing equipment through a feeding device, then pass the hot melt plastic into an extrusion device, and finally squeeze the hot melt plastic into an injection mold for injection molding. In order to ensure that the amount of raw material fed in each time is consistent with the material used in the product, a quantitative structure is usually set inside the feeding device.

[0003] Most current plastic powder metering devices have a low feed inlet height to facilitate material replenishment by operators. The material is lifted to the material inlet of the processing equipment by a lifting device, which is mostly an auger. However, the diameter of the auger inlet is usually the same as other parts. Powder tends to fall at the inclined auger inlet due to gravity. Furthermore, because there is an opening on one side for material conveying, this section of the auger lacks sidewall support, causing some material to slip during extraction. This results in an intermittent supply of material in the middle section of the auger, affecting the stability of the material supply. Utility Model Content

[0004] The purpose of this invention is to provide a plastic powder quantitative feeding device to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution:

[0006] A plastic powder metering device, comprising:

[0007] A storage structure, the storage structure including a storage hopper, and a feeding interface fixedly installed on the bottom side of the storage hopper;

[0008] The material conveying structure includes a material conveying channel, a lifting starting end fixedly connected to the lower end of the material conveying channel, a feeding channel fixedly connected to the upper side of the lifting starting end, the feeding channel and the feeding interface being interconnected, a lifting terminal fixedly connected to the upper end of the material conveying channel, a discharge channel fixedly connected to the bottom side of the lifting terminal, and a lifting auger rotatably installed inside the material conveying channel.

[0009] A quantitative feeding structure, wherein the upper side of the quantitative feeding structure is connected to the discharge channel.

[0010] Furthermore, the storage structure also includes:

[0011] The support frame is fixedly installed on the bottom edge of the storage hopper;

[0012] The control box is fixedly installed at one corner of the front side of the support frame.

[0013] Furthermore, the material conveying structure also includes:

[0014] The No. 1 motor is fixedly installed on one side of the lifting terminal, and the output end of the No. 1 motor is fixedly connected to one end of the lifting auger.

[0015] Furthermore, the quantitative feeding structure includes:

[0016] A feeding hopper, wherein a hopper interface is fixedly installed on the upper side of the feeding hopper, and the hopper interface is connected to the discharge channel;

[0017] A metering channel, the upper side of which is connected to the feeding hopper;

[0018] A quantitative scale, wherein the quantitative scale is embedded in the bottom of the quantitative channel;

[0019] The discharge port is fixedly connected to the other end of the bottom side of the metering channel.

[0020] Furthermore, the quantitative feeding structure also includes:

[0021] A pusher plate, which is slidably installed at one end inside the quantitative channel;

[0022] An electric push rod is fixedly installed on the outer wall of one end of the metering channel, and the output end of the electric push rod is fixedly connected to the push plate.

[0023] Furthermore, the quantitative feeding structure also includes:

[0024] A sealing plate, which is movably embedded in the bottom of the quantitative channel;

[0025] Two internal toothed semi-rings are fixedly installed on both sides of the bottom of the sealing plate.

[0026] A linkage rod, wherein the gears at both ends of the linkage rod mesh with the internal toothed half-ring;

[0027] The second motor is fixedly installed on one side of the quantitative channel, and the output end of the second motor is fixedly connected to one end of the linkage rod.

[0028] Compared with the prior art, the beneficial effects of the present invention are:

[0029] 1. The blades at both ends of the lifting auger are designed to have a larger diameter and fit snugly against the inner walls of the lifting start and end points. At the lifting start point, the lifting auger can extract a larger amount of powder material. After passing through the cone-shaped transition section between the lifting start point and the conveying channel, the powder material undergoes a simple compression process, reducing the gaps in the powder material during transportation within the conveying channel and maintaining the stability of the material supply. At the same time, the larger conveying space at the lifting end provides a release space for the material to be relatively uncompressed, facilitating the direct discharge of the material.

[0030] 2. The powder is fed into the hopper through the conveying structure and guided to fall onto the upper surface of the quantitative scale inside the quantitative channel. At this time, the sealing plate is in an upright position on one side of the quantitative scale, sealing the quantitative channel on one side of the quantitative scale to prevent some powder from falling off the upper surface of the quantitative scale during weighing, which would affect the quantitative accuracy. After weighing is completed, the No. 2 motor is started to drive the linkage rod to rotate. The gear rubs the internal tooth semi-ring to move in an arc trajectory, thereby driving the sealing plate to rotate from an upright position to a flat position. At the same time, the electric push rod is started to push the push plate forward, thereby pushing the powder inside the quantitative channel and discharging it into the processing equipment from the discharge port. Attached Figure Description

[0031] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0032] Figure 2 This is a schematic diagram of the material storage structure in this utility model;

[0033] Figure 3 This is a cross-sectional view of the material conveying structure in this utility model;

[0034] Figure 4 This is a schematic diagram of the quantitative feeding structure in this utility model;

[0035] Figure 5 This is a schematic diagram of the sealing plate in this utility model.

[0036] In the diagram: 1. Storage structure; 101. Storage hopper; 102. Feeding interface; 103. Support frame; 104. Control box; 2. Conveying structure; 201. Conveying channel; 202. Lifting start end; 203. Feeding channel; 204. Lifting end; 205. Discharge channel; 206. Lifting auger; 207. Motor No. 1; 3. Quantitative feeding structure; 301. Feeding hopper; 302. Hopper interface; 303. Quantitative channel; 304. Push plate; 305. Electric push rod; 306. Quantitative scale; 307. Sealing plate; 308. Internal toothed semi-ring; 309. Linkage rod; 310. Motor No. 2. DETAILED DESCRIPTION

[0037] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0038] Please see Figure 1-5 In this embodiment of the present invention, a plastic powder quantitative feeding device includes a storage structure 1, a conveying structure 2, and a quantitative feeding structure 3. The storage structure 1 includes a storage hopper 101, and a feeding interface 102 is fixedly installed on the bottom side of the storage hopper 101. The conveying structure 2 includes a conveying channel 201, a lifting starting end 202 is fixedly connected to the lower end of the conveying channel 201, a feeding channel 203 is fixedly connected to the upper side of the lifting starting end 202, the feeding channel 203 is interconnected with the feeding interface 102, a lifting terminal 204 is fixedly connected to the upper end of the conveying channel 201, a discharge channel 205 is fixedly connected to the bottom side of the lifting terminal 204, and a lifting auger 206 is rotatably installed inside the conveying channel 201. The quantitative feeding structure 3 is interconnected with the discharge channel 205 on its upper side.

[0039] Specifically, plastic powder raw materials are stored in the storage hopper 101. The raw materials are fed into the lifting start end 202 through the feeding interface 102 and the feeding channel 203. The lifting auger 206 lifts the powder from the conveying channel 201 to the lifting terminal 204. Finally, the powder is fed into the quantitative feeding structure 3 through the discharge channel 205 for weighing to determine the amount of raw materials. Finally, the powder is fed into the plastic product processing equipment. The lifting structure composed of the conveying channel 201 and the lifting auger 206 separates the raw material temporary storage structure and lowers its height, making it convenient for staff to replenish the raw materials at any time. At the same time, the inner diameter of the lifting start end 202 and the lifting terminal 204 is designed to be larger than the conveying interface 202. The inner diameter of the material channel 201 is twice that of the material channel. At the same time, the blade diameters at both ends of the lifting auger 206 are designed to be relatively large and fit closely to the inner walls of the lifting start end 202 and the lifting end 204. At the lifting start end 202, the lifting auger 206 can extract a larger amount of powder material. After passing through the conical transition section between the lifting start end 202 and the material channel 201, the powder material undergoes a simple compression process, reducing the gaps in the powder material during transportation inside the material channel 201 and maintaining the stability of the material supply. Meanwhile, the larger conveying space at the lifting end 204 provides a release space for the material to be relatively uncompressed, facilitating the direct discharge of the material.

[0040] Example 1

[0041] like Figure 1-3As shown, in this embodiment, the storage structure 1 also includes a support frame 103 and a control box 104. The support frame 103 is fixedly installed on the bottom edge of the storage hopper 101; the control box 104 is fixedly installed at one corner of the front side of the support frame 103; the conveying structure 2 also includes a first motor 207. The first motor 207 is fixedly installed on one side of the lifting terminal 204, and the output end of the first motor 207 is fixedly connected to one end of the lifting auger 206.

[0042] In practice, the power supply is connected to the control box 104 to control the entire device, and the entire storage hopper 101 is supported by the support frame 103; the lifting auger 206 is driven to rotate by the No. 1 motor 207 to lift the powder.

[0043] Example 2

[0044] Based on Example 1, in order to supplement the specific method of quantitative feeding of the quantitative feeding structure 3 which was not mentioned in Example 1.

[0045] like Figure 4-5 As shown, in this embodiment, the quantitative feeding structure 3 includes a feeding hopper 301, a quantitative channel 303, a quantitative scale 306, a discharge port 311, a push plate 304, an electric push rod 305, a sealing plate 307, an internal toothed semi-ring 308, a linkage rod 309, and a second motor 310. A hopper interface 302 is fixedly installed on the upper side of the feeding hopper 301, and the hopper interface 302 is interconnected with the discharge channel 205. The upper side of the quantitative channel 303 is interconnected with the feeding hopper 301. The quantitative scale 306 is embedded in the inner bottom of the quantitative channel 303. The discharge port 311 is fixedly connected to the other end of the bottom side of the quantitative channel 303. Plate 304 is slidably installed inside one end of metering channel 303; electric push rod 305 is fixedly installed on the outer wall of one end of metering channel 303, and the output end of electric push rod 305 is fixedly connected to push plate 304; sealing plate 307 is movably embedded in the inner bottom of metering channel 303; there are two internal toothed semi-rings 308, and the two internal toothed semi-rings 308 are fixedly installed on the bottom two sides of sealing plate 307; the gears at both ends of linkage rod 309 mesh with internal toothed semi-rings 308; second motor 310 is fixedly installed on one side of metering channel 303, and the output end of second motor 310 is fixedly connected to one end of linkage rod 309.

[0046] In specific implementation, the powder is fed into the feeding hopper 301 through the conveying structure 2, and then guided to fall onto the upper surface of the quantitative scale 306 inside the quantitative channel 303. At this time, the sealing plate 307 is in an upright state on one side edge of the quantitative scale 306, sealing the quantitative channel 303 on one side of the quantitative scale 306 to prevent some powder from falling off the upper surface of the quantitative scale 306 during weighing, which would affect the quantitative accuracy. After weighing is completed, the second motor 310 is started to drive the linkage rod 309 to rotate, and the gear rubs the internal tooth half ring 308 to move in an arc trajectory, thereby driving the sealing plate 307 to rotate from an upright state to a flat structure. At the same time, the electric push rod 305 is started to push the push plate 304 forward, thereby pushing the powder inside the quantitative channel 303 forward and discharging it into the processing equipment from the discharge port 311.

[0047] It will be apparent to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above and that the present invention can be implemented in other specific forms without departing from the spirit or essential characteristics of the present invention. Therefore, the embodiments should be considered in all respects as illustrative and non-restrictive, and the scope of the present invention is defined by the appended claims, not the foregoing description, and all variations within the meaning and range of equivalents of the claims are intended to be encompassed within the present invention. Any reference sign in a claim should not be construed as limiting the claim to which it relates.

[0048] In addition, it should be understood that although this specification is described in terms of implementation methods, not every implementation method contains only one independent technical solution. This narrative method of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment can also be appropriately combined to form other implementation methods that can be understood by those skilled in the art.

Claims

1. A device for quantitatively feeding plastic powder, characterized in that, include: The storage structure (1) includes a storage hopper (101) and a feeding interface (102) is fixedly installed on the bottom side of the storage hopper (101). The material conveying structure (2) includes a material conveying channel (201), the lower end of which is fixedly connected to a lifting start end (202), the upper side of which is fixedly connected to a feeding channel (203), the feeding channel (203) and the feeding interface (102) are interconnected, the upper end of which is fixedly connected to a lifting terminal (204), the bottom side of which is fixedly connected to a discharge channel (205), and a lifting auger (206) is rotatably installed inside the material conveying channel (201). A quantitative feeding structure (3) is provided, the upper side of which is connected to the discharge channel (205).

2. The plastic powder metering device according to claim 1, characterized in that, The storage structure (1) also includes: A support frame (103) is fixedly installed on the bottom edge of the storage hopper (101); The control box (104) is fixedly installed at one corner of the front side of the support frame (103).

3. The plastic powder metering device according to claim 2, characterized in that, The material conveying structure (2) also includes: The No. 1 motor (207) is fixedly installed on one side of the lifting terminal (204), and the output end of the No. 1 motor (207) is fixedly connected to one end of the lifting auger (206).

4. The plastic powder metering device according to claim 3, characterized in that, The quantitative feeding structure (3) includes: A feeding hopper (301) is provided, and a hopper interface (302) is fixedly installed on the upper side of the feeding hopper (301). The hopper interface (302) is connected to the discharge channel (205). A quantitative channel (303) is connected to the feeding hopper (301) on its upper side; A quantitative scale (306) is embedded in the bottom of a quantitative channel (303); The discharge port (311) is fixedly connected to the other end of the bottom side of the metering channel (303).

5. The plastic powder metering device according to claim 4, characterized in that, The quantitative feeding structure (3) also includes: A pusher plate (304) is slidably installed at one end inside the metering channel (303); An electric push rod (305) is fixedly installed on the outer wall of one end of a quantitative channel (303), and the output end of the electric push rod (305) is fixedly connected to a push plate (304).

6. The plastic powder metering device according to claim 5, characterized in that, The quantitative feeding structure (3) also includes: A sealing plate (307) is movably embedded in the bottom of the quantitative channel (303); Two internal toothed semi-rings (308) are fixedly installed on the bottom two sides of the sealing plate (307). Linkage rod (309), wherein the gears at both ends of the linkage rod (309) mesh with the internal gear half ring (308); The second motor (310) is fixedly installed on one side of the quantitative channel (303), and the output end of the second motor (310) is fixedly connected to one end of the linkage rod (309).

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