Cutting structure of extruder for straw production

Abstract

The utility model discloses a cutting structure of an extruder for straw production, and belongs to the technical field of plastic processing. The cutting device comprises a shell, a fixing assembly and a cutting assembly, a groove is formed in the shell, six blind holes are formed in the inner wall of the groove, a notch is formed in the top of the shell, a cavity is formed in the shell, a servo motor is installed in the cavity, the notch is communicated with the cavity, the fixing assembly comprises an electric push rod, and the fixing end of the electric push rod is fixedly connected to the bottom faces of the blind holes. A clamping block is installed at the moving end of the electric push rod, a rubber pad is installed on the clamping block, the cutting assembly comprises a rotating disc, the rotating disc is installed on a motor shaft at the output end of a servo motor, two protruding shafts are arranged on the rotating disc, a connecting rod is installed in the notch, and a cam is hinged to the connecting rod. According to the utility model, the cutting structure can be quickly mounted on the discharge port of the extruder by arranging the fixing assembly, so that the occupied area is small, and the problems that the cutting structure is large in occupied area and relatively difficult to mount are solved.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of plastic processing, specifically to a cutting structure of extruder for straw production. BACKGROUND

[0002] In the plastic extrusion molding equipment, the plastic extruder is usually called the main machine, and the subsequent equipment plastic extrusion molding machine is called the auxiliary machine. The plastic extruder (main machine) can be matched with various plastic molding auxiliary machines such as pipe, film, strand, monofilament, flat wire, packing belt, extrusion net, plate (sheet) material, profile, granulation, cable covering and the like, to form various plastic extrusion molding production lines, and produce various plastic products. The plastic extrusion molding equipment is widely used in straw production, and after the straw is extruded from the extruder, a suitable cutting structure is needed for cutting the straw. SUMMARY

[0003] The utility model discloses a cutting structure of extruder for straw production, which can be quickly installed on the discharge port of the extruder through the fixing assembly.

[0004] The utility model discloses the following technical scheme:

[0005] The utility model discloses a cutting structure of extruder for straw production, which comprises an outer shell, a fixing assembly and a cutting assembly, the outer shell is provided with a groove, six blind holes are formed in the inner wall of the groove, a notch is formed in the top of the outer shell, a cavity is formed in the inner shell, a servo motor is installed in the cavity, and the notch is communicated with the cavity.

[0006] The fixing assembly comprises an electric push rod, the fixed end of the electric push rod is fixedly connected to the bottom surface of the blind hole, a clamping block is installed on the movable end of the electric push rod, and a rubber pad is installed on the clamping block.

[0007] The cutting assembly comprises a rotating disc, the rotating disc is installed on the motor shaft of the servo motor output end, two convex shafts are arranged on the rotating disc, a connecting rod is installed in the notch, a convex block is arranged on one side of the connecting rod, a first pin hole is formed in one end of the connecting rod, a cutting tool is installed at the other end of the connecting rod, and a cam is hingedly arranged on the connecting rod.

[0008] Further, a first rotating shaft is arranged in the cavity, a through hole is formed in the cam, the through hole is matched with the first rotating shaft, a second pin hole is formed in the cam, and a bolt is matched in the first pin hole and the second pin hole.

[0009] Further, a discharge port is formed in the bottom surface of the groove, and the discharge port is communicated with the notch.

[0010] Further, four second rotating shafts are arranged in the notch, pulleys are matched with the second rotating shafts, and the pulleys abut against the connecting rod.

[0011] The utility model has the advantages that:

[0012] The utility model discloses a fixed subassembly, through the telescopic of electric push rod, the whole cutting structure can be fixed on the extruder discharge port, through the different length of 6 electric push rods, satisfy the fixing of the extruder discharge port of different size, after completing the fixed, cutting subassembly starts operation, under the reciprocating motion of the connecting rod of servo motor, completes the cutting work.

[0013] Of course, it is not necessary to achieve all the advantages described above for implementing any product of the utility model. BRIEF DESCRIPTION OF DRAWINGS

[0014] Figure 1 It is the structure schematic diagram of cutting structure;

[0015] Figure 2 It is the plan view of cutting structure;

[0016] Figure 3 It is the section structure schematic diagram of A-A place;

[0017] Figure 4 It is the structure schematic diagram of connecting rod;

[0018] Figure 5 It is the structure schematic diagram of cam.

[0019] In the drawing: 1, shell;2, fixed subassembly;3, cutting subassembly;101, recess;102, blind hole;103, slot;104, cavity;105, discharge port;106, first rotation axis;107, second rotation axis;201, electric push rod;202, clamping block;203, rubber pad;301, rotating disc;302, convex shaft;303, connecting rod;304, protruding block;305, first pin hole;306, cam;307, through hole;308, second pin hole;309, bolt;3010, pulley. DETAILED DESCRIPTION

[0020] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all the other embodiments obtained by the ordinary skilled in the art without creative work belong to the scope of protection of the utility model.

[0021] With reference to the drawings of the embodiments of the present application, the technical solutions in the embodiments of the present application will be described clearly and completely. Obviously, the described embodiments are only some of the embodiments of the present application, but not all the embodiments. Based on the embodiments of the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of the present application.

[0022] Please refer to Figures 1-5 The utility model provides a kind of cutting structure of extruder for straw production, including shell 1, shell 1 is equipped with recess 101, 6 blind holes 102 are equipped on the inner wall of recess 101, slot 103 is equipped in the top of shell 1, cavity 104 is equipped in shell 1, servo motor is installed in cavity 104, slot 103 is communicated with cavity 104, first shaft 106 is arranged in cavity 104, through hole 307 is equipped on cam 306, through hole 307 is matched with first shaft 106, second pin hole 308 is equipped on cam 306, discharge port 105 is equipped in the bottom surface of recess 101, discharge port 105 is communicated with slot 103, four second shafts 107 are arranged in slot 103, pulley 3010 is matched with second shaft 107, pulley 3010 is abutted with connecting rod 303.

[0023] In the embodiment, motor base is installed on the inner wall of cavity 104, servo motor is installed on motor base, cutting assembly 3 is driven to cut by servo motor, pulley 3010 is arranged in slot 103 in two groups, connecting rod 303 is installed between two pulleys 3010, connecting rod 303 is fixed tightly by two pulleys 3010, and connecting rod 303 moves on two pulleys 3010 when cutting.

[0024] Fixed assembly 2 includes electric push rod 201, and the fixed end of electric push rod 201 is fixedly connected to the bottom surface of blind hole 102. A clamping block 202 is installed on the moving end of electric push rod 201. A rubber pad 203 is installed on the clamping block 202.

[0025] In the embodiment, the entire cutting structure can be fixed on the discharge port 105 of the extruder by the extension and retraction of electric push rod 201. By extending different lengths of the six electric push rods 201, the discharge port of the extruder 105 of different sizes can be fixed.

[0026] The cutting assembly 3 comprises a rotating disc 301 installed on a motor shaft of a servo motor output end, two convex shafts 302 are arranged on the rotating disc 301, a connecting rod 303 is installed in the slot 103, a cam 306 is hingedly arranged on the connecting rod 303, a convex block 304 is arranged on one side of the connecting rod 303, a first pin hole 305 is formed on one end of the connecting rod 303, and a cutting tool is installed on the other end of the connecting rod 303, and the first pin hole 305 is matched with a plug pin 309 in a second pin hole 308.

[0027] In use, the rotating disc 301 rotates under the driving of the servo motor, the convex shafts 302 on the rotating disc 301 move in a circular motion, the convex shafts 302 are provided with two, when the convex shafts 302 move to abut against the convex block 304 on the connecting rod 303, the connecting rod 303 is pushed to move forward, the cam 306 rotates under the pulling of the connecting rod 303, when the convex shafts 302 contact the cam 306, the cam 306 rotates in the opposite direction to pull the connecting rod 303 to move backward.

[0028] The preferred embodiments disclosed above are only used for helping to describe the utility model. The preferred embodiments do not describe all the details, and the utility model is not limited to the specific implementation mode. Obviously, according to the content of the specification, many modifications and changes can be made. The specification selects and specifically describes these embodiments, in order to better explain the principle and practical application of the utility model, so that the technical personnel in the art can well understand and utilize the utility model. The utility model is limited by the claims and the whole scope and equivalent thereof.

Claims

1. A cutting structure of an extruder for straw production, characterized by: Including the shell (1), the shell (1) is provided with recess (101), the recess (101) inner wall is provided with six blind holes (102), the shell (1) top is provided with slot (103), the shell (1) is provided with cavity (104) inside, the cavity (104) is installed with servo motor, the slot (103) and cavity (104) are communicated; It also includes a fixing assembly (2), the fixing assembly (2) includes an electric push rod (201), the fixed end of the electric push rod (201) is fixedly connected to the bottom surface of the blind hole (102), the movable end of the electric push rod (201) is installed with a clamping block (202), and the clamping block (202) is installed with a rubber pad (203); It also includes a cutting assembly (3), the cutting assembly (3) includes a rotating disc (301), the rotating disc (301) is installed on the motor shaft of the servo motor output end, the rotating disc (301) is provided with two convex shafts (302), the slot (103) is installed with a connecting rod (303), one side of the connecting rod (303) is provided with a convex block (304), one end of the connecting rod (303) is provided with a first pin hole (305), the other end of the connecting rod (303) is installed with a cutting tool, and the connecting rod (303) is hingedly provided with a cam (306).

2. The cutting structure of an extruder for producing a straw according to claim 1, wherein The first rotating shaft (106) is arranged in the cavity (104), the cam (306) is provided with a through hole (307), the through hole (307) is matched with the first rotating shaft (106), the cam (306) is provided with a second pin hole (308), and the first pin hole (305) and the second pin hole (308) are matched with a bolt (309) inside.

3. The cutting structure of an extruder for producing a straw according to claim 1, wherein The bottom surface of the recess (101) is provided with a discharge port (105), and the discharge port (105) is communicated with the slot (103).

4. The cutting structure of an extruder for producing a straw according to claim 1, wherein The slot (103) is provided with four second rotating shafts (107), the second rotating shafts (107) are matched with pulleys (3010), and the pulleys (3010) abut against the connecting rod (303).

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