Feeding structure of extruder

Abstract

The utility model relates to the technical field of extruders, and discloses a feeding structure of an extruder, which comprises a feeding hopper and a support rod fixedly connected to the outer wall of the feeding hopper, a uniform blanking mechanism is arranged on the feeding hopper, a crushing mechanism is arranged above the uniform blanking mechanism, a connecting rod is driven to rotate by the rotation of a rotating rod, and the crushing mechanism is driven to rotate by the rotating rod. When the push rod continues to rotate and does not make contact with the stress rod any more, the torsion spring rotates in a reset mode, and when the push rod continues to rotate and does not make contact with the stress rod any more, the push rod is driven to rotate to extrude the stress rod, so that the push rod is driven to rotate to extrude the stress rod; the extruded stress rod drives the discharging plate and the discharging hole to rotate and drives materials accumulated at the top end of the stress rod to move and fall down; and therefore, the discharging plate is driven to reset and rotate, the discharging hole can be driven to rotate left and right in a small range, meanwhile, materials at the top end of the discharging hole are extruded into the discharging hole to complete discharging, and therefore the situation that a large number of materials are fed into the feeding hopper at a time, and conveying blockage of the feeding hopper is caused is prevented.

Description

Technical Field

[0001] The utility model belongs to the technical field of extruders, and in particular relates to a feeding structure of an extruder. Background Art

[0002] In plastic extrusion molding equipment, plastic extruder is usually called the main machine, and its supporting subsequent equipment plastic extrusion molding machine is called auxiliary machine. Plastic extruder (main machine) can be matched with various plastic molding auxiliary machines such as pipes, films, holding materials, monofilaments, flat wires, strapping tapes, extruded mesh, plates (sheets), profiles, granulation, cable coating, etc. to form various plastic extrusion molding production lines and produce various plastic products.

[0003] A search of CN217169666U disclosed a feeding structure of a twin-screw extruder, which is equipped with a feed hopper, a second motor, a second screw rod and a feed port. The staff puts the material into the feed hopper through the feed port, and then drives the second screw rod to rotate through the power of the second motor, so that the rotating second screw rod stirs the material inside the feed hopper downward, driving the material to move downward, thereby preventing the occurrence of material blockage.

[0004] However, when the equipment is unloading, it is directly put into the feeder, so a large amount of large pieces of material will accumulate in the feeder, which will cause blockage inside the feeder, thereby greatly affecting the extrusion work of the subsequent extruder.

[0005] In view of this, the present utility model is proposed. Utility Model Content

[0006] In order to solve the above technical problem that when the equipment is unloading, the materials are directly put into the feeder, so that a large amount of large pieces of materials will accumulate in the feeder, which will cause blockage inside the feeder, thereby greatly affecting the extrusion work of the subsequent extruder, the basic concept of the technical solution adopted by the utility model is:

[0007] A feeding structure of an extruder includes a feeding hopper;

[0008] A support rod is fixedly connected to the outer wall of the feeding hopper, and a uniform feeding mechanism is provided on the feeding hopper. A crushing mechanism is provided above the uniform feeding mechanism. The uniform feeding mechanism includes a feeding hopper fixedly connected to the outer wall of one end of the support rod:

[0009] A rotating groove is provided inside the discharge hopper, and a connecting rotating plate is movably provided on the inner wall of the rotating groove, and a connecting rod is fixedly connected to the inner outer wall of the connecting rotating plate, and a push rod is fixedly connected to the outer wall of the connecting rotating plate. A rotating hole is provided at the top of the feeding hopper, and the bottom end of the inner wall of the rotating hole is fixedly connected to a torsion spring, and the end of the torsion spring away from the inner wall of the rotating hole is fixedly connected to a rotating shaft, and the end of the rotating shaft away from the torsion spring is fixedly connected to the discharge plate, and the outer wall of the rotating shaft is rotatably provided on the inner wall of the rotating hole, and a discharge hole is provided on the discharge plate, and a force-bearing rod is fixedly connected to the top of the discharge plate, and the outer wall of the upper part and the outer wall of the lower part of the discharge hopper are fixedly connected to a fixing rod.

[0010] As a preferred embodiment of the present invention, the crushing mechanism includes a support frame fixedly connected to the top of the lower hopper, a motor is fixedly connected to the top of the inner wall of the support frame, a rotating rod is fixedly connected to the output end of the motor, a crushing knife is fixedly connected to the outer wall of the rotating rod, and a striking rod is fixedly connected to the outer wall of the rotating rod below the crushing knife.

[0011] As a preferred embodiment of the present invention, one end of the connecting rod away from the connecting rotating plate is fixedly connected to the outer wall of the rotating rod, and the outer wall of the connecting rotating plate fits snugly with the inner wall of the rotating groove.

[0012] As a preferred embodiment of the present invention, the length of the push rod is longer than the distance between the outer wall of the force-bearing rod and the outer wall of the lower part of the lower hopper.

[0013] As a preferred embodiment of the present invention, an outer wall of one end of the push rod away from the connection rotating plate is provided with an inclined surface, and the outer wall of the rotating shaft fits snugly with the inner wall of the rotating hole provided at the top of the feeding hopper.

[0014] As a preferred embodiment of the present invention, there are two crushing knives, which are distributed on the outer wall of the rotating rod in an upper and lower symmetrical structure, and the two are in a staggered form.

[0015] As a preferred embodiment of the present invention, there are three striking rods, and the striking rods are evenly and equidistantly distributed on the outer wall of the rotating rod and are distributed in a staggered manner.

[0016] Compared with the prior art, the present invention has the following beneficial effects:

[0017] When the push rod continues to rotate and no longer contacts the force-bearing rod, the torsion spring will reset and rotate, thereby driving the blanking plate to reset and rotate, thereby repeatedly driving the blanking hole to rotate left and right slightly, and at the same time squeezing the material at its top into the blanking hole to complete the blanking, thereby preventing a large amount of material from being put into the feeding hopper at one time, causing the feeding hopper to be blocked.

[0018] The utility model starts the motor, and its output end will drive the rotating rod to rotate, and the rotation of the rotating rod can drive the crushing knife and the hitting rod to rotate, and then the material is put into the discharge hopper, where it will first be crushed by the crushing knife, so that the large pieces of material are cut into small pieces. Then, the material cut into small pieces will continue to fall and will be hit by the hitting rod, thereby further dispersing the small pieces of material again and changing the falling path of the material, preventing a large amount of material from falling directly into the feeding hopper through the discharge hole, thereby further improving the material transportation smoothness, preventing blockage, and improving the subsequent extrusion efficiency.

[0019] The specific embodiments of the present invention will be described in further detail below with reference to the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] In the attached figure:

[0021] Figure 1 This is a schematic diagram of the overall structure of the utility model;

[0022] Figure 2 This is a schematic diagram of the internal cross-sectional structure of the utility model;

[0023] Figure 3 This is a schematic cross-sectional view of the uniform feeding mechanism of the utility model;

[0024] Figure 4 This is a schematic diagram of the structure of the pulverizing mechanism of the utility model;

[0025] Figure 5 This is an enlarged structural diagram of point A of the utility model.

[0026] In the figure: 1. Feeding hopper; 2. Support rod; 31. Uniform feeding mechanism; 311. Feeding hopper; 312. Rotating chute; 313. Connecting rotating plate; 314. Connecting rod; 315. Push rod; 316. Fixed rod; 317. Force rod; 318. Feeding plate; 319. Rotating shaft; 3110. Torsion spring; 3111. Feeding hole; 32. Crushing mechanism; 321. Support frame; 322. Motor; 323. Rotating rod; 324. Crushing knife; 325. Beating rod. DETAILED DESCRIPTION

[0027] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. The following embodiments are used to illustrate the present invention.

[0028] like Figures 1 to 5 As shown, a feeding structure of an extruder includes a feeding hopper 1, a support rod 2 fixedly connected to the outer wall of the feeding hopper 1, a uniform feeding mechanism 31 is provided on the feeding hopper 1, a crushing mechanism 32 is provided above the uniform feeding mechanism 31, the uniform feeding mechanism 31 includes a feeding hopper 311 fixedly connected to the outer wall of one end of the support rod 2, a rotating groove 312 is provided inside the feeding hopper 311, a connecting plate 313 is movably provided on the inner wall of the rotating groove 312, a connecting rod 314 is fixedly connected to the inner outer wall of the connecting plate 313, and a connecting rod 314 is fixed on the outer wall of the connecting plate 313. It is connected to a push rod 315, and a rotating hole is provided at the top of the feeding hopper 1. The bottom end of the inner wall of the rotating hole is fixedly connected to a torsion spring 3110. The end of the torsion spring 3110 away from the inner wall of the rotating hole is fixedly connected to a rotating shaft 319. The end of the rotating shaft 319 away from the torsion spring 3110 is fixedly connected to a blanking plate 318. The outer wall of the rotating shaft 319 is rotatably set on the inner wall of the rotating hole. A blanking hole 3111 is provided on the blanking plate 318. The top of the blanking plate 318 is fixedly connected to a force rod 317. The upper outer wall and the lower outer wall of the blanking hopper 311 are fixedly connected to a fixing rod 316.

[0029] Furthermore, the end of the connecting rod 314 away from the connecting rotating plate 313 is fixedly connected to the outer wall of the rotating rod 323, and the outer wall of the connecting rotating plate 313 is in close contact with the inner wall of the rotating groove 312, thereby improving the close fit between the inner wall of the rotating groove 312 and the outer wall of the connecting rotating plate 313, thereby improving the stability of the connecting rotating plate 313 during the rotation process.

[0030] Furthermore, the length of the push rod 315 is longer than the distance between the outer wall of the force-bearing rod 317 and the outer wall of the lower part of the lower hopper 311, so that the push rod 315 can contact and squeeze and push the force-bearing rod 317 during the rotation process.

[0031] Furthermore, a slope is provided on the outer wall of the end of the push rod 315 away from the connecting rotating plate 313, and the outer wall of the rotating shaft 319 fits in place with the inner wall of the rotating hole opened at the top of the feeding hopper 1. Through the inclined surface setting, the push rod 315 can better apply force to the force-bearing rod 317, while ensuring that it is not limited by the force-bearing rod 317 during the rotation process.

[0032] The crushing mechanism 32 includes a support frame 321 fixedly connected to the top of the lower hopper 311, a motor 322 is fixedly connected to the top of the inner wall of the support frame 321, a rotating rod 323 is fixedly connected to the output end of the motor 322, a crushing knife 324 is fixedly connected to the outer wall of the rotating rod 323, and a striking rod 325 is fixedly connected to the outer wall of the rotating rod 323 located below the crushing knife 324.

[0033] Furthermore, there are two crushing knives 324, which are distributed on the outer wall of the rotating rod 323 in an upper and lower symmetrical structure, and the two are in a staggered form, so that the material can be crushed more evenly, thereby improving the smoothness of subsequent transmission and preventing blockage.

[0034] Furthermore, there are three striking rods 325 , which are evenly and equidistantly distributed on the outer wall of the rotating rod 323 and are distributed in a staggered manner, so that the crushed material can be evenly struck, thereby further dispersing the material.

[0035] The implementation principle of the feeding structure of an extruder of this embodiment is as follows: first, the material is put into the discharge hopper 311, and the material is crushed by the crushing mechanism 32. The crushed material will fall onto the discharge plate 318. First, a part of the material will fall into the feeding hopper 1 through the discharge hole 3111 for feeding and transportation, and the rest will be accumulated on the discharge plate 318. The rotation of the rotating rod 323 will drive the connecting rod 314 to rotate, and the rotation of the connecting rod 314 will drive the connecting rotating plate 313 to rotate on the inner wall of the rotating groove 312. As the connecting rotating plate 313 rotates, the push rod 315 on its outer wall will be driven to rotate. At this time, the rotation of the push rod 315 will contact and squeeze the force-bearing rod 317, and the squeezed force-bearing rod 317 will drive the discharge plate 318 to rotate through the rotating shaft 319 The material that is accumulated on the top of the feeding hopper 311 is moved by the rotation of the feeding plate 318, and the material is pushed by the inner wall of the feeding hopper 311 to fall from the inside of the feeding hole 3111. When the push rod 315 continues to rotate and no longer contacts the force-bearing rod 317, the torsion spring 3110 will reset and rotate, thereby driving the feeding plate 318 to reset and rotate, and repeatedly driving the feeding hole 3111 to rotate slightly left and right, and at the same time squeezing the material on its top into the feeding hole 3111 to complete the feeding, thereby preventing a large amount of material from being put into the feeding hopper 1 at one time, causing the feeding hopper 1 to be blocked.

[0036] When the motor 322 is started, its output end will drive the rotating rod 323 to rotate, and the rotation of the rotating rod 323 will drive the crushing knife 324 and the hitting rod 325 to rotate. Then, the material is put into the lower hopper 311, and it will first be crushed by the crushing knife 324, so that large pieces of material are cut into small pieces. After that, the material cut into small pieces continues to fall and will be hit by the hitting rod 325, thereby further dispersing the small pieces of material again and changing the falling path of the material. It prevents a large amount of material from falling directly into the feeding hopper 1 through the discharge hole 3111, thereby further improving the smoothness of material transportation, preventing blockage, and improving subsequent extrusion efficiency.

Claims

1. A feeding structure for an extruder, comprising a feeding hopper (1); The support rod (2) is fixedly connected to the outer wall of the feeding hopper (1), characterized in that: The feeding hopper (1) is provided with a uniform feeding mechanism (31), a crushing mechanism (32) is provided above the uniform feeding mechanism (31), and the uniform feeding mechanism (31) comprises a feeding hopper (311) fixedly connected to the outer wall of one end of the support rod (2): A rotating groove (312) is provided inside the lower hopper (311), and a connecting rotating plate (313) is movably provided on the inner wall of the rotating groove (312). A connecting rod (314) is fixedly connected to the inner outer wall of the connecting rotating plate (313), and a push rod (315) is fixedly connected to the outer wall of the connecting rotating plate (313). A rotating hole is provided at the top of the feeding hopper (1), and a torsion spring (3110) is fixedly connected to the bottom end of the inner wall of the rotating hole. The torsion spring (3110) is away from the inner wall of the rotating hole. One end is fixedly connected to a rotating shaft (319), and the end of the rotating shaft (319) away from the torsion spring (3110) is fixedly connected to a blanking plate (318). The outer wall of the rotating shaft (319) is rotatably arranged on the inner wall of the rotating hole. A blanking hole (3111) is opened on the blanking plate (318). The top of the blanking plate (318) is fixedly connected to a force-bearing rod (317). The upper outer wall and the lower outer wall of the blanking hopper (311) are fixedly connected to a fixing rod (316).

2. The feeding structure of an extruder according to claim 1, characterized in that: The crushing mechanism (32) comprises a support frame (321) fixedly connected to the top of the lower hopper (311); a motor (322) is fixedly connected to the top of the inner wall of the support frame (321); a rotating rod (323) is fixedly connected to the output end of the motor (322); a crushing knife (324) is fixedly connected to the outer wall of the rotating rod (323); and a striking rod (325) is fixedly connected to the outer wall of the rotating rod (323) located below the crushing knife (324).

3. The feeding structure of an extruder according to claim 1, characterized in that: One end of the connecting rod (314) away from the connecting rotating plate (313) is fixedly connected to the outer wall of the rotating rod (323), and the outer wall of the connecting rotating plate (313) fits snugly with the inner wall of the rotating groove (312).

4. The feeding structure of an extruder according to claim 1, characterized in that: The length of the push rod (315) is longer than the distance between the outer wall of the force-bearing rod (317) and the outer wall of the lower part of the lower hopper (311).

5. The feeding structure of an extruder according to claim 1, characterized in that: The outer wall of one end of the push rod (315) away from the connecting rotating plate (313) is provided with an inclined surface, and the outer wall of the rotating shaft (319) is fitted with the inner wall of the rotating hole provided at the top of the feeding hopper (1).

6. The feeding structure of an extruder according to claim 2, characterized in that: There are two crushing knives (324), which are distributed on the outer wall of the rotating rod (323) in an upper and lower symmetrical structure, and the two are in a staggered form.

7. The feeding structure of an extruder according to claim 2, characterized in that: There are three striking rods (325), which are evenly and equidistantly distributed on the outer wall of the rotating rod (323) and are distributed in a staggered manner.

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