Hobbing cutter structure of granulator

Abstract

The utility model discloses a granulator hob structure, which relates to the technical field of granulator hobs and comprises a supporting seat, long grooves are formed in two sides of the top of the supporting seat, bearing seats are connected to the side surfaces of the inner walls of the long grooves in a sliding manner, and a limiting groove is formed in the rear side of the interior of the long groove on the right side. The opposite sides of the two bearing seats are rotationally connected with a cutter shaft, and the middle of the side face of the cutter shaft is fixedly sleeved with a blade. The C-shaped rod is pulled forwards, the tension spring is stretched, the two vertical rods of the C-shaped rod are moved out of the inserting grooves, fixing of the bearing seats is relieved, the two bearing seats are moved downwards according to the distance between the blade and the elastic body filament, the blade is driven to move downwards to be at a proper distance from the elastic body filament, the C-shaped rod is loosened, and the elastic body filament is cut off. And the vertical rod of the C-shaped rod is moved backwards into the slot through the two tension springs, so that the bearing seat can be quickly fixed, and the hob structure of the granulator can be used for cutting elastomer strands with different thicknesses.

Description

Technical Field

[0001] The utility model relates to the technical field of pelletizer hob, in particular to a pelletizer hob structure. Background Art

[0002] With the booming development of the plastic and rubber industries, the polyester production capacity has increased rapidly, and the number of pelletizers used for polyester has increased sharply. The cutting head of the pelletizer is the core of the entire pelletizer, mainly including components such as a material guiding roller group, a fixed knife, and a moving knife.

[0003] When cutting elastomeric filaments, due to the difference in the thickness of the elastomeric filaments, when cutting different elastomeric filaments, it is necessary to use a wrench to disassemble the pelletizer and adjust the distance between the hob of the pelletizer and the elastomeric filaments, which makes it more cumbersome to cut elastomeric filaments of different thicknesses. Summary of the Invention

[0004] In order to improve the problem that when cutting elastomeric filaments with different thicknesses, it is necessary to use a wrench to disassemble the pelletizer and adjust the distance between the hob of the pelletizer and the elastomeric filaments, which makes it more cumbersome to cut elastomeric filaments of different thicknesses, the utility model provides a pelletizer hob structure.

[0005] The utility model provides a pelletizer hob structure, adopting the following technical scheme:

[0006] A pelletizer hob structure includes a support seat. Long grooves are provided on both sides of the top of the support seat. The side surfaces of the inner walls of the long grooves are slidably connected to bearing seats. A limiting groove is provided at the rear side inside the right long groove. A knife shaft is rotatably connected to the opposite sides of the two bearing seats. A blade is fixedly sleeved on the middle part of the side surface of the knife shaft.

[0007] A fixing member is fixedly connected to the front side of the support seat. A C-shaped groove is provided at the lower side of the rear side of the right bearing seat. A quick-release member is slidably connected inside the C-shaped groove.

[0008] Through the above technical scheme, it is convenient to quickly fix the bearing seat, so that the pelletizer hob structure can cut elastomeric filaments of different thicknesses, and the bearing seat can be quickly disassembled, so that the hob can be quickly maintained and replaced.

[0009] Optionally, in the above pelletizer hob structure, the fixing member includes a C-shaped rod. The C-shaped rod is movably inserted into the front side of the support seat. Two tension springs are fixedly connected to the side surface of the cross bar of the C-shaped rod. The rear ends of the tension springs are fixedly connected to the front side of the support seat.

[0010] Through the above technical solution, it is convenient to fix the bearing seat by means of the fixing piece.

[0011] Optionally, in the above-mentioned hob structure of the granulator, three slots are provided on the front side of the bearing seat, and six of the slots are arranged in groups of three and are linearly equidistantly arranged on the front sides of the two bearing seats respectively. The sides of the two vertical bars of the C-shaped rod are respectively slidably connected to the interiors of two of the six slots in a group of three slots.

[0012] Through the above technical solution, it is convenient to adjust the position of the bearing seat on the upper side of the support seat through the slots in groups of three, and further facilitate the cutting of elastomeric filaments with different thicknesses.

[0013] Optionally, in the above-mentioned hob structure of the granulator, the quick-release part includes a C-shaped strip, the C-shaped strip is slidably connected to the interior of the C-shaped groove, a compression spring is fixedly connected to the front side of the vertical strip of the C-shaped strip, one end of the compression spring is fixedly connected to the interior of the C-shaped groove, and the lower horizontal strip of the C-shaped strip extends to the outside of the C-shaped groove and is slidably connected to the interior of the limit groove.

[0014] Through the above technical solution, it is convenient to quickly release the limit on the bearing seat by moving the C-shaped strip forward so that the horizontal strip of the C-shaped strip moves into the interior of the C-shaped groove, and the bearing seat can be quickly taken out from the interior of the support seat.

[0015] Optionally, in the above-mentioned hob structure of the granulator, trapezoidal fixing strips are fixedly connected to both the left and right sides of the support seat, and two threaded through grooves are provided on the upper side of the trapezoidal fixing strips.

[0016] Through the above technical solution, it is convenient to fix the hob structure of the granulator by means of the trapezoidal fixing strips and the threaded through grooves.

[0017] Optionally, in the above-mentioned hob structure of the granulator, bearings are fixedly sleeved on both the left and right sides of the tool shaft, and the outer rings of the bearings are fixedly connected to the interiors of the two bearing seats.

[0018] Through the above technical solution, the bearing reduces the frictional resistance generated when the tool shaft rotates and ensures the rotational accuracy of the tool shaft.

[0019] Optionally, in the above-mentioned hob structure of the granulator, the number of the blades is several, several of the blades are fixedly connected to the side of the tool shaft in groups of two and are annularly equidistantly arranged, and the shape of the blades is herringbone.

[0020] Through the above technical solution, it is convenient to form a pressure angle at both ends of the cutting opening by means of the herringbone blades, so that the elastic filament is in the middle area of the tool, preventing the filament from running off and ensuring the consistent length of the plastic particles cut.

[0021] In summary, the utility model includes at least one of the following beneficial effects:

[0022] Pull the C-shaped rod forward to stretch the tension spring, so that the two vertical rods of the C-shaped rod are moved out of the slot, releasing the fixation of the bearing seat. According to the distance between the blade and the elastic body wire, move the two bearing seats downward, driving the blade to move downward to a suitable distance from the elastic body wire. Relax the C-shaped rod, and the vertical rod of the C-shaped rod moves backward into the slot through the two tension springs, and the bearing seat can be quickly fixed, so that the hob structure of the granulator can cut elastic body wires with different thicknesses.

[0023] By moving the C-shaped strip forward, squeezing the compression spring, and moving the C-shaped strip into the C-shaped groove, the fixation of the left bearing seat is released, and the two bearing seats can be quickly separated from the support seat, and the disassembly of the bearing seat can be quickly completed, so that the hob can be quickly maintained and replaced. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 is a three-dimensional structural schematic diagram of the utility model;

[0025] Figure 2 is an expanded three-dimensional structural diagram of a part of the utility model;

[0026] Figure 3 is a partial three-dimensional structural sectional view of the bearing seat of the utility model;

[0027] Figure 4 is a partial three-dimensional structural sectional view of the utility model.

[0028] In the figure: 1, support seat; 101, trapezoidal fixing strip; 102, threaded through groove; 2, bearing seat; 201, slot; 3, cutter shaft; 4, blade; 5, fixing part; 501, C-shaped rod; 502, tension spring; 6, C-shaped groove; 7, quick-release part; 701, C-shaped strip; 702, compression spring; 8, long groove; 9, limit groove. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0029] The following is a further detailed description of the utility model in conjunction with the attached Figures 1-4 drawings.

[0030] Please refer to the drawings in the specification Figure 1 , Figure 2 , Figure 3 and Figure 4 , an embodiment provided by the utility model: A hob structure of a granulator, including a support seat 1, long grooves 8 are opened on both sides of the top of the support seat 1, the side surfaces of the inner walls of the long grooves 8 are slidably connected with bearing seats 2, a limit groove 9 is opened at the rear side of the right long groove 8, a cutter shaft 3 is rotatably connected to the opposite sides of the two bearing seats 2, and a blade 4 is fixedly sleeved in the middle of the side surface of the cutter shaft 3;

[0031] A fixing member 5 is fixedly connected to the front side of the support base 1. A C-shaped groove 6 is formed in the lower side of the rear side of the right bearing seat 2, and a quick-release member 7 is slidably connected to the inside of the C-shaped groove 6.

[0032] Refer to the attached drawings of the specification Figure 1 、 Figure 2 、 Figure 3 and Figure 4 . The fixing member 5 includes a C-shaped rod 501. The C-shaped rod 501 is movably inserted into the front side of the support base 1. Two tension springs 502 are fixedly connected to the side surface of the cross bar of the C-shaped rod 501. The rear ends of the tension springs 502 are fixedly connected to the front side of the support base 1. The bearing seat 2 can be conveniently fixed by the fixing member 5.

[0033] Refer to the attached drawings of the specification Figure 1 、 Figure 2 、 Figure 3 and Figure 4 . Three slots 201 are formed in the front side of the bearing seat 2. Six slots 201 are divided into three groups and are equidistantly arranged in a straight line on the front sides of the two bearing seats 2 respectively. The side surfaces of the two vertical bars of the C-shaped rod 501 are respectively slidably connected to the inside of two of the six slots 201 that are grouped into three. The position of the bearing seat 2 on the upper side of the support base 1 can be adjusted through the three groups of slots 201, so as to facilitate the cutting of elastomeric filaments with different thicknesses.

[0034] Refer to the attached drawings of the specification Figure 1 、 Figure 2 、 Figure 3 and Figure 4 . The quick-release member 7 includes a C-shaped strip 701. The C-shaped strip 701 is slidably connected to the inside of the C-shaped groove 6. A compression spring 702 is fixedly connected to the front side of the vertical strip of the C-shaped strip 701. One end of the compression spring 702 is fixedly connected to the inside of the C-shaped groove 6. The lower cross bar of the C-shaped strip 701 extends to the outside of the C-shaped groove 6 and is slidably connected to the inside of the limiting groove 9. By moving the C-shaped strip 701 forward, so that the cross bar of the C-shaped strip 701 moves into the inside of the C-shaped groove 6, the limit on the bearing seat 2 can be quickly released, and the bearing seat can be quickly taken out from the inside of the support base 1.

[0035] Refer to the attached drawings of the specification Figure 1 、 Figure 2 、 Figure 3 and Figure 4 . Trapezoidal fixing strips 101 are fixedly connected to both the left and right sides of the support base 1, and two threaded through holes 102 are formed in the upper side of the trapezoidal fixing strips 101. The trapezoidal fixing strips 101 and the threaded through holes are convenient for fixing the hob structure of the granulator.

[0036] Refer to the attached drawings of the specification Figure 1 、 Figure 2 、 Figure 3and Figure 4 On both the left and right sides of the cutter shaft 3, bearings are fixedly sleeved. The outer rings of the bearings are fixedly connected to the interiors of the two bearing seats 2. The bearings reduce the frictional resistance generated when the cutter shaft 3 rotates and ensure the rotational accuracy of the cutter shaft 3.

[0037] Refer to the accompanying drawings of the specification Figure 1 、 Figure 2 、 Figure 3 and Figure 4 The number of the blades 4 is several. The several blades 4 are fixedly connected in a ring at equal intervals in groups of two on the side surface of the cutter shaft 3. The shape of the blade 4 is herringbone. Through the herringbone blades, pressure angles can be formed at both ends of the opening, so that the elastic wire strip is in the middle area of the tool, preventing the wire strip from running off and ensuring that the lengths of the plastic particles cut are consistent.

[0038] Working principle: When using the hob structure of this granulator, by stretching the C-shaped rod 501 forward, the tension spring 502 is stretched, and the two vertical rods of the C-shaped rod 501 are moved out of the interior of the slot 201, thereby releasing the fixed state of the bearing seat 2. Then, according to the distance between the blade 4 and the elastic wire strip, the two bearing seats 2 are moved downward, driving the blade 4 to move downward to a suitable distance from the elastic wire strip. Then, the C-shaped rod 501 is released, and the two vertical rods of the C-shaped rod 501 move backward into the interior of the slot 201 due to the rebounding force generated when the two tension springs 502 reset, so that the bearing seat 2 can be quickly fixed, and thus the hob structure of the granulator can cut elastic wire strips of different thicknesses.

[0039] By moving the C-shaped strip 701 forward, the compression spring 702 is squeezed, and the C-shaped strip 701 is moved into the interior of the C-shaped groove 6 for storage, thereby releasing the fixed state of the left bearing seat 2. Then, the two bearing seats 2 can be quickly separated from the support seat 1, and the disassembly of the bearing seat 2 can be quickly completed, and thus the hob can be quickly maintained and replaced.

[0040] The above are all the preferred embodiments of the present invention, and the protection scope of the present invention is not limited accordingly. Therefore, all equivalent changes made according to the structure, shape, and principle of the present invention should be covered within the protection scope of the present invention.

Claims

1. A pelletizer cutter structure, comprising a support seat (1), characterized in that: Both sides of the top of the support seat (1) are provided with long grooves (8), the side of the inner wall of the long groove (8) is slidably connected to the bearing seat (2), and a limiting groove (9) is provided on the rear side of the right side of the long groove (8), and the knife shaft (3) is rotatably connected to the opposite side of the two bearing seats (2), and the middle part of the side of the knife shaft (3) is fixedly sleeved with a blade (4); A fixing part (5) is fixedly connected to the front side of the support seat (1), a C-shaped groove (6) is provided on the lower side of the rear side of the right-hand bearing seat (2), and a quick-release part (7) is slidably connected inside the C-shaped groove (6).

2. A pelletizer cutter structure according to claim 1, characterized in that: The fixing member (5) comprises a C-shaped rod (501), the C-shaped rod (501) being movably plugged into the front side of the support seat (1), two tension springs (502) being fixedly connected to the side of the crossbar of the C-shaped rod (501), and the rear end of the tension spring (502) being fixedly connected to the front side of the support seat (1).

3. A pelletizer cutter structure according to claim 2, characterized in that: The front side of the bearing seat (2) is provided with three slots (201), and the six slots (201) are respectively provided in a straight line and equidistantly in a group of three on the front sides of the two bearing seats (2), and the side surfaces of the two vertical rods of the C-shaped rod (501) are respectively slidably connected to the inside of two of the six slots (201) in a group of three.

4. The pelletizer cutter structure according to claim 1, characterized in that: The quick-release component (7) comprises a C-shaped bar (701), the C-shaped bar (701) being slidably connected to the inside of the C-shaped groove (6), a compression spring (702) being fixedly connected to the front side of the vertical bar of the C-shaped bar (701), one end of the compression spring (702) being fixedly connected to the inside of the C-shaped groove (6), and a lower horizontal bar of the C-shaped bar (701) extending to the outside of the C-shaped groove (6) and being slidably connected to the inside of the limiting groove (9).

5. The pelletizer cutter structure according to claim 1, characterized in that: Trapezoidal fixing bars (101) are fixedly connected to the left and right sides of the support seat (1), and two threaded through grooves (102) are provided on the upper side of the trapezoidal fixing bars (101).

6. The pelletizer cutter structure according to claim 1, characterized in that: Bearings are fixedly sleeved on both the left and right sides of the knife shaft (3), and the outer rings of the bearings are fixedly connected to the insides of the two bearing seats (2).

7. The pelletizer cutter structure according to claim 1, characterized in that: The number of the blades (4) is several, and the blades (4) are grouped in groups of two and are equidistantly connected in a ring-shaped manner to the side of the blade shaft (3), and the shape of the blades (4) is a herringbone.

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