A plastic manufacturing raw material feeding machine

Abstract

This utility model relates to the field of plastic manufacturing technology, specifically to a plastic manufacturing raw material feeding machine, including a hopper, a conveying pipe installed inside the hopper, and a spiral conveying rod rotatably installed inside the conveying pipe. The conveying pipe has a discharge pipe at the top and a feed inlet at the bottom. The conveying pipe includes a stationary part fixedly installed inside the hopper and a separating part that slides radially on the stationary part. The feed inlet is located at the bottom of the outer circumference of the stationary part, and the discharge pipe is installed on the top of the outer wall of the separating part. A guide elastic component is jointly installed on the separating part and the stationary part. A transmission component that drives the guide elastic component to slide is installed on the stationary part. When the distance between the separating part and the stationary part increases, a gap is generated between the inner wall of the separating part and the spiral conveying rod, allowing the raw material in the conveying pipe to pass through the gap and slide down the separating part into the hopper.

Description

Technical Field

[0001] This utility model relates to the field of plastic manufacturing technology, specifically to a plastic manufacturing raw material feeding machine. Background Technology

[0002] Plastics are materials primarily composed of polymer compounds. They can be made to possess plasticity, processability, and certain elasticity and toughness by adding various additives and through heating, softening, and molding. Plastics are widely used in packaging, building materials, medical, automotive, and electronics industries. The production and processing of plastic granules requires a feeding device to transport the plastic raw materials to the plastic granule processing equipment for further processing.

[0003] Existing feeding machines are usually screw feeders, which use screw blades to rotate in an inclined conveying pipe to lift the raw materials to the top discharge pipe for discharge, thus completing the feeding. Then, after one type of raw material has been conveyed, when another type of raw material needs to be conveyed, the raw material that was originally left between the conveying pipe and the screw blades will become the impurity of the subsequent raw material. Therefore, it is necessary to completely discharge the raw material from the conveying pipe.

[0004] The information disclosed in the background section is only intended to enhance the understanding of the background of this disclosure, and therefore may include information that does not constitute prior art known to those skilled in the art. Utility Model Content

[0005] The purpose of this invention is to design a plastic manufacturing raw material feeding machine that can quickly discharge the preceding raw material between the spiral blade and the conveying pipe, facilitating the feeding of subsequent raw materials, in order to solve the above-mentioned shortcomings in the technology.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a plastic manufacturing raw material feeding machine, comprising a hopper, a conveying pipe installed inside the hopper, and a spiral conveying rod rotatably installed inside the conveying pipe. The conveying pipe has a discharge pipe at the top and a feed inlet at the bottom. The conveying pipe includes a stationary component fixedly installed inside the hopper and a separating component that slides radially on the stationary component. The feed inlet is located at the bottom of the outer circumference of the stationary component. The discharge pipe is installed on the top of the outer wall of the separating component. A guide elastic component is jointly installed on the separating component and the stationary component. A transmission component for driving the guide elastic component to slide is installed on the stationary component. When the distance between the separating component and the stationary component increases, a gap is generated between the inner wall of the separating component and the spiral conveying rod.

[0007] Preferably, the spiral conveyor includes a drive shaft rotatably connected to the stationary member, spiral blades fixedly mounted on the drive shaft, and an input wheel fixedly mounted at the top of the drive shaft.

[0008] Preferably, the guide spring assembly includes a first rod fixedly mounted to the outer peripheral surface of the stationary member, a second rod fixedly mounted to the outer peripheral surface of the separating member, a plurality of equidistant guide rods fixedly mounted on the second rod, a third rod jointly mounted at the ends of the guide rods, and a spring sleeved on the guide rods. The guide rods pass through the first rod and are slidably mounted to the first rod, and the springs are located between the second rod and the third rod.

[0009] Preferably, the angle between the conveying pipe and the horizontal plane is the same as the angle between the guide rod and the vertical line.

[0010] Preferably, the transmission assembly includes two threaded rods rotatably mounted on the stationary part, a first bevel gear fixedly mounted on the threaded rod, a pressing plate that is threadedly connected to the two threaded rods, a pressing rod fixedly mounted on the bottom of the pressing plate, a transmission rod rotatably mounted on the stationary part, and second bevel gears fixedly mounted at both ends of the transmission rod. The two second bevel gears mesh with the two first bevel gears respectively, and the end of the pressing rod is in contact with the side wall of the third rod.

[0011] Preferably, the central axis of the pressing rod coincides with the central axis of the adjacent guide rod.

[0012] Preferably, a drive wheel is fixedly installed at the end of the threaded rod at the bottom of the transmission assembly.

[0013] Preferably, a support rod is fixedly installed on the top of the outer peripheral surface of the stationary component, and casters are fixedly installed on both the support rod and the bottom of the hopper.

[0014] The technical effects and advantages provided by this utility model in the above technical solution are as follows:

[0015] 1. When a new type of raw material needs to be replaced after the feeding is completed, but there is a concern that the raw material remaining in the conveying pipe may cause impurities, simply rotate the drive wheel to create a gap between the separating part and the stationary part. This will allow the raw material in the conveying pipe to pass through the gap and slide down the separating part into the hopper, making it convenient for staff to clean.

[0016] 2. This feeding machine only requires the forward rotation of the drive wheel to create a gap between the separating part and the stationary part, and the reverse rotation of the drive wheel will cause the spring to drive the separating part to reset. It is simple to operate and easy to use.

[0017] 3. This feeding machine can also be equipped with a discharge valve at the bottom of the hopper, which can be used in conjunction with the forward and reverse rotation of the drive wheel to allow the previously conveyed raw materials to be discharged quickly, and then the feeding of new types of raw materials can be carried out. Attached Figure Description

[0018] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the embodiments 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.

[0019] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0020] Figure 2 This is a side view of the stationary component and the detached component of this utility model;

[0021] Figure 3 This is a schematic diagram showing the separation of the separating component and the stationary component of this utility model;

[0022] Figure 4 This is a schematic diagram showing the gap between the separator and the spiral blade of this utility model.

[0023] Explanation of reference numerals in the attached figures:

[0024] 1. Hopper; 2. Conveying pipe; 2a. Stationary component; 2b. Separator; 3. Screw conveyor rod; 3a. Drive shaft; 3b. Screw blade; 3c. Input wheel; 4. Discharge pipe; 5. Feed inlet; 6. Guide spring assembly; 6a. First rod; 6b. Second rod; 6c. Guide rod; 6d. Third rod; 6e. Spring; 7. Transmission assembly; 7a. Threaded rod; 7b. First bevel gear; 7c. Pressing plate; 7d. Pressing rod; 7e. Transmission rod; 7f. Second bevel gear; 8. Clearance; 9. Drive wheel; 10. Support rod; 11. Caster wheel. Detailed Implementation

[0025] To enable those skilled in the art to better understand the technical solutions in this application, the technical solutions in the embodiments of this application will be clearly and completely described below. Obviously, the described embodiments are only a part of the embodiments of this application, and not all of the embodiments. Based on the embodiments in this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0026] To better understand the above technical solutions, the following will provide a detailed explanation of the technical solutions in conjunction with the accompanying drawings and specific implementation methods.

[0027] This utility model provides, for example Figure 1-4The illustrated plastic manufacturing raw material feeding machine includes a hopper 1, a conveying pipe 2 installed inside the hopper 1, and a spiral conveying rod 3 rotatably installed inside the conveying pipe 2. The top of the conveying pipe 2 has a discharge pipe 4, and the bottom of the conveying pipe 2 has a feed inlet 5. The conveying pipe 2 includes a stationary part 2a fixedly installed inside the hopper 1 and a separating part 2b that slides radially on the stationary part 2a. The feed inlet 5 is located at the bottom of the outer peripheral surface of the stationary part 2a, and the discharge pipe 4 is installed on the top of the outer wall of the separating part 2b. Two first rods 6a are symmetrically installed on the outer peripheral surface of the stationary part 2a, and two second rods 6b that cooperate with the first rods 6a are symmetrically installed on the outer peripheral surface of the separating part 2b. Multiple guide rods are fixedly installed on the second rods 6b at equal intervals. 6c, guide rod 6c passes through the adjacent first rod 6a and is slidably connected to the first rod 6a. Multiple guide rods 6c pass through one end of the first rod 6a and are fixedly installed with a third rod 6d. Multiple springs 6e are set between the third rod 6d and the first rod 6a. Each spring 6e is sleeved on the outside of a guide rod 6c. The first rod 6a, the second rod 6b, the third rod 6d, the guide rod 6c, and the springs 6e constitute the guide elastic component 6. Under the action of the springs 6e, the third rod 6d is moved away from the first rod 6a. The third rod 6d drives the second rod 6b through the guide rod 6c. The second rod 6b drives the separating member 2b to fit tightly against the stationary member 2a, so that the inner circumferential surface of the separating member 2b cooperates with the screw conveyor 3.

[0028] To increase the distance between the separating component 2b and the stationary component 2a, two threaded rods 7a and a transmission rod 7e are rotatably mounted on the stationary component 2a. Two first bevel gears 7b are fixedly mounted on the threaded rods 7a, and two second bevel gears 7f are fixedly mounted at both ends of the transmission rod 7e. The two second bevel gears 7f mesh with the two first bevel gears 7b respectively. A pressing plate 7c is threadedly connected to both threaded rods 7a. Multiple pressing rods 7d are fixedly mounted on the bottom of the pressing plate 7c. The central axis of the pressing rods 7d coincides with the central axis of the guide rod 6c, and the bottom end of the pressing rods 7d is in contact with the outer wall of the third rod 6d. To facilitate operation, a drive wheel 9 is fixedly mounted on the lower threaded rod 7a. Rotating the drive wheel 9 will drive the threaded rod 7a to rotate. The threaded rod 7a can drive the two threaded rods 7a through the engagement of the first bevel gears 7b and the second bevel gears 7f. The synchronous rotation causes the pressing plate 7c to move closer to the first rod 6a. The pressing plate 7c then drives the pressing rod 7d to push the third rod 6d. The third rod 6d compresses the spring 6e and drives the first rod 6a through the guide rod 6c. The first rod 6a then moves the separating part 2b away from the stationary part 2a, creating a gap 8 between the inner circumference of the separating part 2b and the screw conveyor 3. The raw material that was originally left after the screw conveyor 3 came to rest will slide into the hopper 1 through detection and the inner circumference of the separating part 2b. Here, the threaded rod 7a, the first bevel gear 7b, the second bevel gear 7f, the pressing plate 7c, the pressing rod 7d, and the transmission rod 7e constitute the transmission assembly 7. At the same time, the angle between the conveying pipe 2 and the horizontal plane is the same as the angle between the guide rod 6c and the vertical line, ensuring that the separating part 2b and the stationary part 2a can be separated more easily to create a gap 8, and also ensuring the sealing when the separating part 2b and the stationary part 2a are in contact.

[0029] The spiral conveyor 3 used here includes a drive shaft 3a rotatably connected to the stationary part 2a, a spiral blade 3b fixedly installed on the drive shaft 3a, and an input wheel 3c fixedly installed at the top of the drive shaft 3a. When the input wheel 3c rotates, it will drive the spiral blade 3b to rotate through the drive shaft 3a, thereby gradually lifting the raw material from the hopper 1 to the discharge pipe 4 for output.

[0030] To facilitate movement and maintain the center of gravity, a support rod 10 is fixedly installed on the top of the outer periphery of the stationary part 2a, and casters 11 are fixedly installed on both the support rod 10 and the bottom of the hopper 1.

[0031] The specific working process of this feeding machine is as follows: when the raw material is in the hopper 1, it enters the space between the spiral blade 3b and the separator 2b through the feed inlet 5. Then, the spiral blade 3b rotates and, in conjunction with the inclined separator 2b, lifts the raw material into the discharge pipe 4 for discharge. When feeding is not required but another type of raw material needs to be replaced, the operator rotates the drive wheel 9, causing the separator 2b to move away from the stationary part 2a, creating a gap 8 between the spiral blade 3b and the inner circumferential surface of the separator 2b. The raw material slides through the gap 8 onto the inner circumferential surface of the separator 2b, and then slides down along the separator 2b into the hopper 1, which can quickly discharge the residual raw material from the conveying pipe 2 and prevent raw material mixing. At the same time, the drive wheel 9 is rotated in the opposite direction, and the spring 6e will push the separator 2b to reset under the action of elasticity.

[0032] It is important to note that the constructions and arrangements of this application shown in several different exemplary embodiments are merely illustrative. Although only a few embodiments are described in detail in this disclosure, those who consult this disclosure will readily understand that many modifications are possible (e.g., changes in the size, dimensions, structure, shape and proportion of various elements, as well as parameter values ​​(e.g., temperature, pressure, etc.), installation arrangements, use of materials, color, orientation, etc.) without substantially departing from the novel teachings and advantages of the subject matter described in this application.

Claims

1. A plastic raw material feeding machine, comprising a hopper (1), a conveying pipe (2) installed in the hopper (1), and a spiral conveying rod (3) rotatably installed in the conveying pipe (2), the conveying pipe (2) having a discharge pipe (4) at the top and a feeding port (5) at the bottom, characterized in that: The conveying pipe (2) includes a stationary part (2a) fixedly installed in the hopper (1) and a separating part (2b) that slides radially on the stationary part (2a). The feed inlet (5) is opened at the bottom of the outer peripheral surface of the stationary part (2a). The discharge pipe (4) is installed on the top of the outer wall of the separating part (2b). A guide elastic component (6) is installed on both the separating part (2b) and the stationary part (2a). A transmission component (7) for driving the guide elastic component to slide is installed on the stationary part (2a). When the distance between the separating part (2b) and the stationary part (2a) increases, a gap (8) is generated between the inner wall of the separating part (2b) and the spiral conveying rod (3).

2. The plastic manufacturing raw material feeding machine according to claim 1, characterized in that: The spiral conveyor (3) includes a drive shaft (3a) rotatably connected to the stationary member (2a), a spiral blade (3b) fixedly mounted on the drive shaft (3a), and an input wheel (3c) fixedly mounted on the top end of the drive shaft (3a).

3. The plastic manufacturing raw material feeding machine according to claim 1, characterized in that: The guide spring assembly (6) includes a first rod (6a) fixedly installed on the outer peripheral surface of the stationary member (2a), a second rod (6b) fixedly installed on the outer peripheral surface of the separating member (2b), a plurality of equidistant guide rods (6c) fixedly installed on the second rod (6b), a third rod (6d) jointly installed at the ends of the guide rods (6c), and a spring (6e) sleeved on the guide rods (6c). The guide rods (6c) pass through the first rod (6a) and are slidably installed with the first rod (6a). The spring (6e) is located between the second rod (6b) and the third rod (6d).

4. The plastic manufacturing raw material feeding machine according to claim 3, characterized in that: The angle between the conveying pipe (2) and the horizontal plane is the same as the angle between the guide rod (6c) and the vertical line.

5. A plastic manufacturing raw material feeding machine according to claim 3, characterized in that: The transmission assembly (7) includes two threaded rods (7a) rotatably mounted on the stationary part (2a), a first bevel gear (7b) fixedly mounted on the threaded rods (7a), a pressing plate (7c) threadedly connected to the two threaded rods (7a), a pressing rod (7d) fixedly mounted on the bottom of the pressing plate (7c), a transmission rod (7e) rotatably mounted on the stationary part (2a), and second bevel gears (7f) fixedly mounted at both ends of the transmission rod (7e). The two second bevel gears (7f) mesh with the two first bevel gears (7b) respectively, and the end of the pressing rod (7d) is in contact with the side wall of the third rod (6d).

6. A plastic manufacturing raw material feeding machine according to claim 5, characterized in that: The central axis of the pressing rod (7d) coincides with the central axis of the adjacent guide rod (6c).

7. A plastic manufacturing raw material feeding machine according to claim 5, characterized in that: A drive wheel (9) is fixedly installed at the end of the threaded rod (7a) at the bottom of the transmission assembly (7).

8. A plastic manufacturing raw material feeding machine according to claim 1, characterized in that: A support rod (10) is fixedly installed on the top of the outer periphery of the stationary part (2a), and casters (11) are fixedly installed on both the support rod (10) and the bottom of the hopper (1).

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