A feeding device for plastic processing

Abstract

This utility model discloses a feeding device for plastic processing, comprising: a housing and a conveying device; the housing has an outlet and an inlet; the conveying device is installed inside the housing and includes four pairs of chain teeth, each pair mounted on a side wall opposite to the housing; a chain is mounted on each pair of chain teeth, and multiple conveying rods are evenly mounted on the chain; each conveying rod has a rotatable hopper; fixed shafts are fixed on both sides of the hopper at the lower end of the conveying rods; pulleys are rotatably mounted on each pair of fixed shafts; a pair of grooves matching the pulleys are fixed on the inner wall of the housing near the inlet; a receiving groove communicating with the outlet is fixed on the inner wall of the housing at the outlet, located below the chain; and a pair of slide rails are fixed on the upper end of the receiving groove on the inner wall of the housing. Through its structural design, this utility model enables vertical feeding, effectively reducing the floor space required for the feeding device.

Description

Technical Field

[0001] This utility model belongs to the field of plastic processing technology, and specifically relates to a feeding device for plastic processing. Background Technology

[0002] In the processing and production of plastic products, plastic granules are usually added to a melting equipment, and after melting, they are extruded into an injection molding machine to form plastic products. The feeding port of the melting equipment is usually at the top. A feeding device is usually needed to heat the plastic granules into the melting equipment and transfer the plastic granules from the bottom to the feeding port of the melting equipment.

[0003] Currently available feeding devices generally use belt conveyors or screw conveyors for feeding. Belt conveyors and screw conveyors generally transport materials at an angle, so these devices generally require a large space and cannot feed materials vertically.

[0004] Therefore, in order to address the above-mentioned technical problems, it is necessary to provide a feeding device for plastic processing.

[0005] The information disclosed in this background section is intended only to enhance the understanding of the overall background of this utility model and should not be construed as an admission or in any way implying that the information constitutes prior art known to those skilled in the art. Utility Model Content

[0006] The purpose of this utility model is to provide a feeding device for plastic processing, which can solve the problems of existing belt conveyor feeders and screw conveyor feeders having a large footprint and being unable to feed vertically.

[0007] To achieve the above objectives, a specific embodiment of this utility model provides a feeding device for plastic processing, including: a shell and a conveying device;

[0008] The outer shell has a discharge port and a feed port, and a feed hopper is fixed at the feed port;

[0009] The conveying device is installed inside the housing and includes four pairs of chain teeth. The four pairs of chain teeth are installed on the side walls of opposite sides of the housing. A pair of chains are installed on the four pairs of chain teeth. A rotating shaft is fixed on each pair of chain teeth. The end of the rotating shaft extending outside the housing is connected to a drive device. Multiple conveying rods are evenly installed on the chains. A feeding hopper is rotatably installed on each of the multiple conveying rods. Fixed shafts are fixed on both sides of the feeding hopper at the lower end of the conveying rods. A pulley is rotatably installed on each pair of fixed shafts. A pair of sliding grooves that are adapted to the pair of pulleys are fixed on the inner wall of the housing near the feed inlet. A receiving groove connected to the discharge outlet is fixed on the inner wall of the housing. The receiving groove is located below the chain. A pair of slide rails are fixed on the inner wall of the housing above the receiving groove.

[0010] In one or more embodiments of this utility model, a feeding plate is rotatably provided at the feeding port on the inner wall of the outer shell. The length of the feeding plate extending outward is just enough to guide the plastic particles as they slide out of the feeding port, so that the plastic particles fall into the conveying hopper without spilling. When the conveying hopper rises to the feeding plate, it drives the feeding plate to rotate upward, so that the plastic particles stop falling. When the conveying hopper moves away from the feeding plate, the plastic particles on the feeding plate press the feeding plate to rotate downward, so that the feeding plate conveys plastic particles to the next conveying hopper.

[0011] In one or more embodiments of this utility model, side plates are fixed on both sides of the feeding plate. The side plates are used to block plastic particles and prevent plastic particles from spilling out from both sides.

[0012] In one or more embodiments of this utility model, a drive shaft is installed outside the housing, and two pairs of belt gears are installed on the drive shaft and a pair of rotating shafts. The drive shaft is used to connect an external drive device to drive it to rotate.

[0013] In one or more embodiments of this utility model, belts are installed on both pairs of belt gears, and the drive shaft drives a pair of rotating shafts to rotate synchronously through the two pairs of belt gears and a pair of belts. The pair of rotating shafts drives a pair of chain teeth to rotate, and the pair of chain teeth drives a pair of chains to rotate.

[0014] In one or more embodiments of this utility model, a bearing is fixed at the rotatable connection between the hopper and the conveying rod, and the rotatable setting between the hopper and the conveying rod is realized by the bearing.

[0015] In one or more embodiments of this utility model, guide angles are provided on both sides of the bottom inlet of the chute. Since the hopper rotates on the conveying rod, the hopper may shake. Therefore, by providing guide angles on both sides of the bottom opening of the chute, the guide angles guide the pulley as it slides upward into the chute.

[0016] In one or more embodiments of this utility model, the radius of the pulley is greater than the radius of the conveying rod, and the top wall of the slide rail is in contact with the conveying rod. When the conveying rod drives the hopper to the slide rail, the slide rail pushes the pulley, causing the hopper to rotate and the plastic particles in the hopper to fall into the receiving trough. Because the radius of the pulley is greater than the radius of the conveying rod, and the top wall of the slide rail is in contact with the conveying rod, when the pulley slides onto the top wall of the slide rail, the opening of the hopper is in a downward tilted state, thereby preventing plastic particles from remaining in the hopper.

[0017] In one or more embodiments of this utility model, a discharge pipe is fixed on the side of the receiving trough near the discharge port, the discharge pipe is connected to the discharge port, and the receiving trough conveys the plastic particles therein from the discharge port through the discharge pipe.

[0018] In one or more embodiments of this utility model, the bottom wall of the receiving trough gradually slopes downward toward the discharge pipe, thereby allowing the plastic particles poured into the receiving trough from the conveying hopper to slide more easily into the discharge pipe.

[0019] Compared with the prior art, this utility model, through its related structural design, enables vertical feeding, effectively reducing the floor space occupied by the feeding device. Attached Figure Description

[0020] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0021] Figure 1 This is a perspective view of a feeding device for plastic processing according to an embodiment of the present invention;

[0022] Figure 2 This is a schematic diagram of the internal structure of a feeding device for plastic processing according to one embodiment of the present invention;

[0023] Figure 3 This is a schematic diagram of the internal structure of the outer shell in one embodiment of the present invention;

[0024] Figure 4 for Figure 3 The structural diagram shown at point A in the middle;

[0025] Figure 5 This is a schematic diagram of the chain and conveying hopper in one embodiment of the present invention;

[0026] Figure 6This is a schematic diagram of the material conveying hopper in one embodiment of the present invention;

[0027] Figure 7 This is a schematic diagram of the structure of the hopper and slide rail in one embodiment of the present invention;

[0028] Figure 8 This is a schematic diagram of the material receiving trough in one embodiment of the present invention.

[0029] Explanation of key figure labels:

[0030] 1-Outer shell, 101-Feeding hopper, 102-Discharge port, 103-Feeding plate, 104-Side plate, 105-Feeding inlet, 2-Conveying device, 201-Chain teeth, 202-Chain, 203-Conveying rod, 204-Feeding hopper, 205-Bearing, 206-Fixed shaft, 207-Pulley, 208-Receiving trough, 209-Slide groove, 210-Guide angle, 211-Slide rail, 212-Drive shaft, 213-Belt gear, 214-Belt, 215-Discharge pipe, 216-Rotating shaft. Detailed Implementation

[0031] To enable those skilled in the art to better understand the technical solutions of this utility model, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort should fall within the protection scope of this utility model.

[0032] like Figure 1-8 As shown, a feeding device for plastic processing in one embodiment of the present invention includes: a housing 1 and a conveying device 2.

[0033] like Figure 1-4 As shown, the outer casing 1 has a discharge port 102 and a feed port 105. A hopper 101 is fixed at the feed port 105. Plastic granules are added into the hopper 101 and then fed through the feed port 105. The discharge port 102 is used for discharging the material.

[0034] like Figure 1-4As shown, a feed inlet 105 is provided on the inner wall of the outer casing 1, and a feed plate 103 is rotatably installed thereon. The length of the feed plate 103 extending outward is just enough to guide the plastic granules as they slide out of the feed inlet 105, so that the plastic granules fall into the conveying hopper 204 without spilling. When the conveying hopper 204 rises to the feed plate 103, it drives the feed plate 103 to rotate upward, so that the plastic granules stop falling. When the conveying hopper 204 moves away from the feed plate 103, the plastic granules on the feed plate 103 press the feed plate 103 to rotate downward, so that the feed plate 103 conveys plastic granules into the next conveying hopper 204.

[0035] like Figure 1-4 As shown, side plates 104 are fixed on both sides of the feeding plate 103. The side plates 104 are used to block plastic particles and prevent plastic particles from spilling out from both sides.

[0036] like Figure 2-8 As shown, the conveying device 2 is installed inside the housing 1. The conveying device 2 includes four pairs of chain teeth 201. The four pairs of chain teeth 201 are all installed on the side walls of opposite sides of the housing 1. A pair of chains 202 are installed on the four pairs of chain teeth 201. A rotating shaft 216 is fixed on each pair of chain teeth 201. One end of the rotating shaft 216 extending out of the housing 1 is connected to the drive device. The pair of rotating shafts 216 drives the pair of chain teeth 201 to rotate, and the pair of chain teeth 201 drives the pair of chains 202 to rotate.

[0037] In addition, multiple conveying rods 203 are evenly installed on the chain 202, and each conveying rod 203 is rotatably mounted with a hopper 204. Fixed shafts 206 are fixed to both sides of the hopper 204 at the lower end of the conveying rods 203. Pulleys 207 are rotatably mounted on each pair of fixed shafts 206. The chain 202 drives the hoppers 204 to move along the movement trajectory of the chain 202 via the conveying rods 203. The pulleys 207 drive the hoppers 204 to rotate about the conveying rods 203 as the axis.

[0038] Secondly, a pair of grooves 209 adapted to a pair of pulleys 207 are fixed on the inner wall of the outer casing 1 near the feed inlet 105. The pulleys 207 slide in the grooves 209 to prevent the feed hopper 204 from rotating, so that the feed hopper 204 can stably feed at the feed inlet 105 and stably drive the plastic particles upward, preventing the plastic particles from spilling out due to the shaking of the feed hopper 204.

[0039] Finally, a receiving groove 208 connected to the discharge port 102 is fixed on the inner wall of the outer shell 1. The receiving groove 208 is located below the chain 202. A pair of slide rails 211 are fixed on the upper end of the receiving groove 208 on the inner wall of the outer shell 1. After the conveying hopper 204 moves to the upper end of the chain 202, it slides on the slide rails 211 through the pulley 207, thereby causing the conveying hopper 204 to rotate. After the conveying hopper 204 rotates, it pours the plastic particles into the receiving groove 208 and then conveys them out through the discharge port 102.

[0040] like Figure 2-8 As shown, a drive shaft 212 is mounted on the outer casing 1. Two pairs of belt gears 213 are mounted on the drive shaft 212 and a pair of rotating shafts 216. The drive shaft 212 is used to connect an external drive device to drive its rotation. Each pair of belt gears 213 is equipped with a belt 214. The drive shaft 212 synchronously drives the pair of rotating shafts 216 to rotate through the two pairs of belt gears 213 and the pair of belts 214. The pair of rotating shafts 216 drive a pair of chain teeth 201 to rotate, and the pair of chain teeth 201 drive a pair of chains 202 to rotate.

[0041] like Figure 2-8 As shown, a bearing 205 is fixed at the rotatable connection between the hopper 204 and the conveying rod 203, enabling rotation between the hopper 204 and the conveying rod 203. Guide angles 210 are provided on both sides of the bottom inlet of the chute 209. Since the hopper 204 rotates on the conveying rod 203, it may wobble. Therefore, the guide angles 210 on both sides of the bottom opening of the chute 209 guide the pulley 207 as it slides upward into the chute 209.

[0042] like Figure 2-8 As shown, the radius of pulley 207 is larger than the radius of conveying rod 203, and the top wall of slide rail 211 is in contact with conveying rod 203. When conveying rod 203 moves hopper 204 to slide rail 211, slide rail 211 pushes pulley 207, causing hopper 204 to rotate, so that the plastic particles in hopper 204 are poured downward into receiving trough 208. Because the radius of pulley 207 is larger than the radius of conveying rod 203, and the top wall of slide rail 211 is in contact with conveying rod 203, when pulley 207 slides to the top wall of slide rail 211, the opening of hopper 204 is in a downward tilted state, thereby preventing plastic particles from remaining in hopper 204.

[0043] like Figure 2-8As shown, a discharge pipe 215 is fixed to the side of the receiving trough 208 near the discharge port 102. The discharge pipe 215 is connected to the discharge port 102, and the receiving trough 208 conveys the plastic particles from the discharge port 102 through the discharge pipe 215. The bottom wall of the receiving trough 208 gradually slopes downward toward the discharge pipe 215, so that the plastic particles poured into the receiving trough 208 by the conveying hopper 204 can slide into the discharge pipe 215 in a favorable manner.

[0044] Working principle: When using this device, the drive shaft 212 first needs to be driven by an external drive device to rotate. The drive shaft 212 drives a pair of rotating shafts 216 to rotate through a pair of belts 214 and two pairs of belt gears 213. The pair of rotating shafts 216 drives a pair of chain teeth 201 to rotate. The pair of chain teeth 201 drives a pair of chains 202 to rotate. The chains 202 drive the conveying hopper 204 to move along its motion trajectory through the conveying rod 203.

[0045] The plastic granules are then heated from the bottom into the feeding hopper 101. The plastic granules fall into the conveying hopper 204 through the feeding plate 103 in the feeding hopper 101. When the conveying rod 203 moves the conveying hopper 204 to the chute 209, the pulley 207 enters the chute 209 from the bottom end of the chute 209. The pulley 207 slides in the chute 209, thereby preventing the conveying hopper 204 from shaking and causing the plastic granules to spill when they fall from the feeding plate 103 into the conveying hopper 204.

[0046] When the conveying hopper 204 rises to the discharge plate 103, it drives the discharge plate 103 to rotate upward, preventing the plastic granules from falling. After the conveying hopper 204 moves away from the discharge plate 103, the plastic granules on the discharge plate 103 press the discharge plate 103 to rotate downward, causing the discharge plate 103 to convey plastic granules to the next conveying hopper 204. When the chain 202 is driven to the slide rail 211 by the conveying rod 203, it slides on the slide rail 211 through the pulley 207, thereby causing the conveying hopper 204 to rotate around the conveying rod 203 as the axis. After the conveying hopper 204 rotates, it pours the plastic granules into the receiving trough 208. After falling into the receiving trough 208, the plastic granules slide along the inclined bottom wall of the receiving trough 208 into the discharge pipe 215, and finally slide out from the discharge port 102.

[0047] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

[0048] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A feeding device for plastic processing, characterized in that, include: The outer shell has a discharge port and a feed port, and a feed hopper is fixed at the feed port; A conveying device, installed inside a housing, comprises four pairs of chain teeth, each pair mounted on opposite sidewalls of the housing. A chain is mounted on each of the four pairs of chain teeth, with a rotating shaft fixed to each pair of chain teeth. One end of the rotating shaft extending outside the housing is connected to a drive unit. Multiple conveying rods are evenly mounted on the chain, each conveying rod rotatably equipped with a feeding hopper. Fixed shafts are fixed to both sides of each feeding hopper at the lower end of the conveying rod. A pair of pulleys are rotatably mounted on each pair of fixed shafts. A pair of sliding grooves, matching the pulleys, are fixed to the inner wall of the housing near the inlet. A receiving groove, communicating with the outlet, is fixed to the inner wall of the housing below the chain. A pair of sliding rails are fixed to the upper end of the receiving groove on the inner wall of the housing.

2. The feeding device for plastic processing according to claim 1, characterized in that, The inner wall of the outer shell has a feed inlet with a rotating feed plate.

3. The feeding device for plastic processing according to claim 2, characterized in that, Side plates are fixed on both sides of the feeding plate.

4. The feeding device for plastic processing according to claim 1, characterized in that, A drive shaft is mounted on the outside of the housing, and two pairs of belt gears are mounted on the drive shaft and a pair of rotating shafts.

5. The feeding device for plastic processing according to claim 4, characterized in that, Both pairs of belt gears are equipped with belts.

6. The feeding device for plastic processing according to claim 1, characterized in that, A bearing is fixed at the rotatable connection between the hopper and the conveying rod.

7. The feeding device for plastic processing according to claim 1, characterized in that, Guide angles are provided on both sides of the bottom inlet of the chute.

8. The feeding device for plastic processing according to claim 1, characterized in that, The pulley radius is larger than the conveyor rod radius, and the top wall of the slide rail is in contact with the conveyor rod.

9. A feeding device for plastic processing according to claim 1, characterized in that, A discharge pipe is fixed to the side of the receiving trough near the discharge port, and the discharge pipe is connected to the discharge port.

10. A feeding device for plastic processing according to claim 9, characterized in that, The bottom wall of the receiving trough gradually slopes downward toward the discharge pipe.

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