CN204673832U - A kind of limit-type multichannel material strip pellet device - Google Patents

Abstract

The utility model discloses a position-limiting multi-channel material strip cutting device, which comprises a cutting assembly, one side of the cutting assembly is provided with a feeding port, and a cutting assembly composed of a moving knife and a fixed knife is arranged inside. A knife assembly, a rubber roller and a supporting steel roller are arranged between the feed inlet and the fixed knife, and a limit device for limiting the material strip is provided on the outside of the feed inlet, and the limit device includes a partition The material strip roller, the pressure roller positioned above the partition strip roller, and a pair of support arms located on both sides of the feed inlet respectively, and the two ends of the support shaft passing through the partition strip roller along the axial direction are respectively connected to two support arms; The wheel surface of the separating material strip roller is provided with several parallel grooves along the circumference, and the grooves are closed after a circle around the wheel surface; the pressure roller is also connected with a driving device that makes the pressure roller move in the vertical direction; The pressing roller moves down to the lowest point and contacts with the separating strip roller.

Description

A limit-type multi-channel strip pelletizing device

technical field

The utility model belongs to a strip pelletizing device, in particular to a limiting multi-channel strip pelletizing device.

Background technique

The granulation assembly of the existing granulation equipment is often composed of the following parts: pressure rubber roller cylinder, moving knife, fixed knife, rubber roller, supporting steel roller. When granulating, the material strip enters between the rubber roller and the supporting steel roller, and the material strip continues to enter the gap between the moving knife and the fixed knife. The moving knife rotates to cut and provide the driving force for the material strip to move forward. Rubber rollers and supporting steel rollers are compacted to ensure that the material strip does not fall out. However, there are process defects. During the production process of the strands, the positions of the strands will be offset or superimposed, which will cause several strands to overlap at one cutting position. When multiple strands of strands are concentrated at a certain position, the moving knife and fixed There are some positions between the knives where the material strips cannot be cut, and some positions need to cut several material strips; and between the rubber roller and the support steel roller, some positions have no material strips, and some positions will accumulate several material strips , so the damage to the cutting tool and the rubber roller of the granulator is relatively large, the tool wear speed is fast, the local wear of the rubber roller is high, and the gap between the supporting steel roller and the rubber roller and between the moving knife and the fixed knife will be increased. When the gap is too large When it is too large, it is often impossible to compact the material strip, so the material strip will come out of the entire assembly, causing the phenomenon that it cannot be cut, and the life of the entire assembly is shortened.

Contents of the invention

Purpose of the utility model: In order to overcome the deficiencies of the prior art, the purpose of the utility model is to provide a limit-type multi-channel material strip cutting device, which solves the problem of partial material strip overlapping and accumulation or partial material strip missing, and reduces the number of parts. wear and tear.

Technical solution: In order to solve the above technical problems, the utility model proposes a limit-type multi-channel strip pelletizing device, which includes a pelletizing assembly and a feed port located on one side of the pelletizing assembly, and a moving knife is arranged inside The cutter assembly composed of the fixed knife and the fixed knife is provided with rubber rollers and supporting steel rollers between the feed inlet and the fixed knife, and a limit device for limiting the material strip is provided on the outside of the feed inlet. The position limiting device includes a separating material strip roller, a pressure roller positioned above the separating material strip roller, a pair of support arms respectively located on both sides of the feed inlet, two ends of the support shaft passing through the separating material strip roller in the axial direction are respectively connected to two a support arm; the wheel surface of the separating material strip roller is provided with several parallel grooves along the circumference, and the grooves are closed after a circle around the wheel surface; the pressure roller is also connected to make the pressure roller vertically A driving device for movement; the pressure roller moves down to the lowest point to contact with the separating strip roller.

As a preference, the outer diameter of the separator roller is 45-55 mm.

As a preference, the groove is a V-shaped groove or a U-shaped groove.

As a preference, the grooving depth of the groove is 2-3 times the diameter of the bar, and the width of the notch is 2-3 times the diameter of the bar.

As a preference, the wheel surface of the separating strip roller is provided with 10-90 grooves along the circumference.

As a preference, the length of the pressing roller and the separating roller is 1.05-1.1 times the length of the feed inlet.

As a preference, the driving device is a pair of pressure roller cylinders connected to both ends of the pressure roller and fixed on both sides above the feed inlet.

Preferably, the axis of the separating material strip roller and the axis of the pressure roller above the separating material strip roller are in the same vertical plane.

As a preference, the press roller is a rubber press roller made of wear-resistant polyurethane, and its Shore hardness is between 70-90.

As preferably, add a separating material strip roller before the feed inlet, the material of separating material strip roller is nylon 6 or polytetrafluoroethylene, and the outer diameter of separating material strip roller is 45-55 millimeters, has several grooves, concave The slotting depth of the groove is 2-3 times of the diameter of the material strip, and the width of the notch is 2-3 times of the diameter of the material strip; the number of openings of the groove depends on the cutting amount of the pelletizing assembly, the diameter of the material strip, and the width of the inlet. , can be between 10-90. The groove is a V-shaped groove or a U-shaped groove.

The utility model provides a granulation device with an external pressure roller and a roller separating material strips. Its structure can make each material strip have a limited position during the granulation process, without too much displacement and no As for the phenomenon that several strips of material are repeatedly piled up at a certain position, it can effectively reduce the wear of the tool and the rubber roller, prevent the excessive gap between the moving knife and the fixed knife and between the rubber roller and the supporting steel roller, and ensure the cutting The granulation process can be carried out smoothly without the phenomenon that the strips come out of the pelletizing assembly.

Beneficial effect: when the granulation is in progress, the pressure roller with the additional limit device closes downward and touches the grooved separator roller, which can limit the material strips and make the material strips enter the granulation device side by side. Avoid jumping and entanglement of material strips during transmission, or repeated accumulation of several material strips in a certain position, resulting in damage to the pelletizing device. After the material strip enters the gap between the movable knife and the fixed knife, it is cut under the rotation of the movable knife, and at the same time driven by the driven knife to move forward and continue to be cut. The positions of the contact surfaces of the knives, fixed knives, rubber rollers, and supporting steel rollers are relatively fixed, and there will be no lateral displacement, so they can be evenly distributed, and the force on each contact surface is uniform, and there will be no overlap and accumulation of partial strips or missing partial strips. question.

The groove of the utility model is set as a V-shaped groove with a wide top and a narrow bottom, which can be applied to material strips of different diameters and avoids the limitation of the equipment. Compared with the existing pelletizing device, after adding the limit device of the utility model, the wear of the parts of the pelletizing device is reduced, and there are no problems such as material strip falling out, local accumulation, excessive force on the rubber roller, and excessive wear during pelletizing. . According to the measurement, the turning of the rubber roller is increased from once every 3 months to once every 7 months; the grinding of the moving knife is increased from once every 3 months to once every 6 months; there is almost no misalignment, overlap, missing or The phenomenon of falling out of the pelletizing assembly.

Description of drawings

Fig. 1 is the structural representation of the limit type multi-channel material strip pelletizing device described in the utility model;

Fig. 2 is a side view structural schematic diagram of Fig. 1;

Fig. 3 is a three-dimensional structural schematic diagram of the limiting multi-channel material strand pelletizing device described in the present invention.

Detailed ways

The technical scheme of the utility model will be described in detail below with the accompanying drawings, but the protection scope of the utility model is not limited to the described embodiments.

Embodiment 1: As shown in Figure 1, a limit-type multi-channel strip pelletizing device includes a pelletizing assembly and a feed port located on one side of the pelletizing assembly, with a moving knife 10 and a fixed knife 9 inside. The cutter assembly is composed of a rubber roller 7 and a supporting steel roller 8 between the feed inlet and the fixed knife 9, and a limit device for limiting the material strip 4 is provided outside the feed inlet. The position-limiting device comprises a separating material strip roller 3, a pair of support arms respectively positioned at both sides of the feed inlet, a pressure roller 2 positioned above the separating material strip roller 3, and a part of the support shaft of the separating material strip roller 3 along the axial direction. The two ends are respectively connected with two support arms, and the said separating material strip roller is free to rotate on the supporting shaft, and the wheel surface rotation direction of the said separating material strip roller is aligned with the said feeding port; the wheel of said separating material strip roller 3 The surface is provided with several parallel grooves along the circumference, and the grooves are closed after a circle around the wheel surface; the pressure roller 2 is also connected with the two ends of the pressure roller 2 and fixed on both sides above the feed inlet. A pair of pressure roller cylinders 1; the pressure roller 2 moves down to the lowest point and contacts with the separating strip roller 3.

The outer diameter of the separating strip roller is 45 mm.

The groove is a U-shaped groove.

The groove depth of the U-shaped groove is twice the diameter of the material bar, and the width of the notch is twice the diameter of the material bar.

There are 10 U-shaped grooves arranged on the wheel surface of the separating strip roller along the circumference.

The length of the pressing roller and the separating strip roller is 1.05 times of the length of the feed inlet.

The axis of the separating material strip roller and the axis of the pressure roller above the separating material strip roller are in the same vertical plane.

Embodiment 2: basically the same structure as Embodiment 1, the similarities are not repeated, and the difference is:

The outer diameter of the separating strip roller is 55 millimeters.

The groove is a V-shaped groove.

The groove depth of the V-shaped groove is 3 times of the diameter of the material strip, and the width of the notch is 3 times of the diameter of the material strip.

There are 90 V-shaped grooves arranged on the wheel surface of the separating strip roller along the circumference.

The length of the pressing roller and the separating strip roller is 1.1 times the length of the feed inlet.

The material strip 4 first passes through the V-shaped groove on the separating material strip roller 3, then enters the inner cavity of the pelletizing assembly through the feed port of the pelletizing assembly, passes through the gap between the rubber roller 7 and the supporting steel roller 8, and reaches The fixed knife 9 passes through the gap between the fixed knife 9 and the moving knife 10, and the moving knife 10 starts to rotate to pelletize the material strip, and drives the material strip to move continuously; the pressure roller cylinder 1 moves downward, pressing the pressure roller 2 on the On the separation material strip roller 3, but because the separation material strip roller has a V-shaped groove, the material strip 4 can still have a movable space, but the position is limited in the V-shaped groove; Moving downward under pressure, the rubber roller 7 is pressed on the supporting steel roller 8; with the continuous rotation of the moving knife 10, the strip moves forward and is cut continuously, but the position is always relatively fixed; the strip after being cut 4 is discharged from the discharge port 5 in the state of particles.

The utility model provides a granulation device with an external pressure roller and a roller separating material strips. Its structure can make each material strip have a limited position during the granulation process, without too much displacement and no As for the phenomenon that several strips of material are repeatedly piled up at a certain position, it can effectively reduce the wear of the tool and the rubber roller, prevent excessive gaps between the moving knife and the fixed knife, and between the rubber roller and the supporting steel roller, and ensure the granulation The process can be carried out smoothly and there is no phenomenon that the strands come out of the pelletizing assembly.

The selection of the specifications of the components of the utility model is not limited to the scope of the utility model, and can be adjusted according to actual needs.

As stated above, although the invention has been shown and described with reference to certain preferred embodiments, this should not be construed as limiting the invention itself. Various changes in form and details may be made therein without departing from the spirit and scope of the invention as defined by the appended claims.

Claims (7)

1. A limit-type multi-channel material strip pelletizing device, comprising a pelletizing assembly and a feed port located on one side of the pelletizing assembly, and a cutter assembly composed of a moving knife and a fixed knife is provided inside, in the A rubber roller and a supporting steel roller are arranged between the feed inlet and the fixed knife, and it is characterized in that a limit device for limiting the material strip is provided on the outside of the feed inlet, and the limit device includes a partition material strip The rollers, the pressure rollers above the rollers that separate the material strips, and a pair of support arms that are respectively located on both sides of the feed inlet, and the two ends of the support shafts that penetrate the rollers that separate the material strips in the axial direction are respectively connected to two support arms; The wheel surface of the roller is provided with several parallel grooves along the circumference, and the grooves are closed after a circle around the wheel surface; the pressure roller is also connected with a driving device that makes the pressure roller move in the vertical direction; the pressure roller The rollers move down to the lowest point where they come into contact with the divider strip rollers. 2. The limit-type multi-channel strand cutting device according to claim 1, characterized in that, the outer diameter of the separating strand roller is 45-55 mm. 3. The limit-type multi-channel strand pelletizing device according to claim 1, wherein the groove is a V-shaped groove or a U-shaped groove. 4. The limit-type multi-channel strand cutting device according to claim 1, characterized in that 10-90 grooves are arranged on the wheel surface of the separating strand roller along the circumference. 5. The position-limiting multi-channel strip pelletizing device according to claim 1, wherein the length of the pressing roller is 1.05-1.1 times the length of the feed inlet; the length of the separating strip roller is 1.05-1.1 times the mouth length. 6. The position-limiting multi-channel material strip cutting device according to claim 1, wherein the driving device is a pair of pressure rollers connected to both ends of the pressure rollers and fixed on both sides above the feed inlet cylinder. 7. The position-limiting multi-channel strand pelletizing device according to claim 1 or 5, wherein the axis of the separating strand roller and the axis of the pressing roller above the dividing strand roller are in the same vertical axis. Straight plane.