CN214604656U - Cutting mechanism for producing thermoplastic polyurethane material - Google Patents

Abstract

The utility model discloses a cutting mechanism for producing thermoplastic polyurethane material, the cutting part comprises a base and a knife rest, a plurality of detachable cutting knives are arranged on the knife rest, a pressing arm is arranged on the knife rest and comprises two swing arms and a connecting rod, the swing arms are fixed on the knife rest through a rotating shaft, the swing arms are all provided with arc-shaped limiting grooves with openings, the outer wall of the cooling groove is provided with a first limiting block matched with the limiting grooves, the knife rest is provided with a second limiting block butted with the swing arms, the cutting knives comprise a blade and a knife handle, the blade is provided with a columnar assembling end, two sides of the assembling end are provided with slide blocks, the knife handle is provided with an assembling groove matched with the assembling end, be equipped with two spouts on the inner wall of assembly groove, the slider is located spout sliding fit, is equipped with the spring on the inner wall of spout one side, and the spring is contradicted with the slider, orders about the slider and contradicts with the inner wall of spout opposite side. After the improvement, the working efficiency of the cutting mechanism is improved, and the cutting mechanism is more labor-saving in operation.

Description

Cutting mechanism for producing thermoplastic polyurethane material

Technical Field

The utility model relates to a cutting equipment technical field, more specifically say, it relates to a cutting mechanism for producing high performance thermoplastic polyurethane material.

Background

Thermoplastic polyurethane, a thermoplastic TPU elastomer. During production, the raw materials of the three liquids are placed in a reaction kettle to be stirred and mixed, then the mixed liquid is poured into a cutting mechanism to be cooled and molded to obtain a blocky thermoplastic polyurethane material with an integral structure, then the blocky thermoplastic polyurethane material with the integral structure is cut into small blocks of thermoplastic polyurethane material by a cutter, and finally the small blocks of thermoplastic polyurethane material are conveyed into a crusher to be crushed into fine particles to obtain thermoplastic polyurethane particles which are not polished and have edges and corners.

Current cutting mechanism includes the cutting knife of cooling bath and cooling bath top, treats the material cooling back in the cooling bath, pushes down the cutting knife through artifical manual mode, plays the effect that cuts off refrigerated material. Such cutting mode needs operating personnel to exert pressure very big power, just can let the cutting knife cut off the material, and not only extravagant artifical labour is big, can often take place the phenomenon that the material can't once only cut off moreover, influences the work efficiency and the operating mass with rated load of cutting.

SUMMERY OF THE UTILITY MODEL

Not enough to prior art exists, the utility model aims to provide a cutting mechanism for producing thermoplastic polyurethane material that work efficiency is high, and more laborsaving.

In order to achieve the above purpose, the utility model provides a following technical scheme: a cutting mechanism for producing thermoplastic polyurethane materials comprises a base, a cooling groove and a cutting part, wherein the cooling groove is formed in the base, the cutting part is located above the cooling groove and comprises a base and a knife rest which is matched with the base in a rotating mode, a plurality of detachable cutting knives are arranged on the knife rest, a pressing arm is arranged on the knife rest and comprises two swing arms and a connecting rod which is connected with the two swing arms, the swing arms are fixed on the knife rest through rotating shafts and can rotate clockwise or anticlockwise, arc-shaped limiting grooves with openings are formed in the swing arms, a first limiting block matched with the limiting grooves is arranged on the outer wall of the cooling groove, a second limiting block which is abutted against the swing arms is arranged on the knife rest, each cutting knife comprises a blade and a knife handle, a columnar assembling end is arranged on each blade, sliding blocks are arranged on two sides of the assembling end, and an assembling groove matched with the assembling end is formed in the knife handle, be equipped with two spouts on the inner wall of assembly groove, the slider is located spout sliding fit, be equipped with the spring on the inner wall of spout one side, the spring is contradicted with the slider, orders about the inner wall inconsistent of slider and spout opposite side.

The utility model discloses further set up to: one end of the knife handle, which is far away from the assembling groove, is provided with a cross-shaped inserting block, the knife rest is provided with a slot matched with the inserting block, and the inner wall of the slot and the inserting block are provided with threaded holes with the same diameter.

The utility model discloses further set up to: the base is further provided with a holding rod for the tool rest to lean against, and the holding rod is in an inclined state.

The utility model discloses further set up to: the base includes two pillars and is located the back shaft between two pillars, the tool rest cover is established normal running fit on the back shaft.

Through adopting above-mentioned technical scheme, when cutting the process, the arm of pressing that sets up on the knife rest plays the effect of cutting more laborsaving, through the cooperation of swing arm, stopper one and stopper two, realizes that the knife rest can closely laminate with the cooling bath fast, plays the effect that the cutting knife cut off the material for it is more laborsaving during the cutting, promotes cutting efficiency.

Drawings

FIG. 1 is a schematic structural view of the present invention;

FIG. 2 is a cross-sectional view of a cutting knife;

FIG. 3 is an enlarged view of a portion a of FIG. 1;

FIG. 4 is an enlarged view of FIG. 2 at b;

FIG. 5 is a schematic view of the pressing arm;

fig. 6 is a schematic view of a partial structure of the present invention.

1. A base; 2. a cooling tank; 20. a second limiting block; 3. a cutting section; 30. a tool holder; 300. a first limiting block; 31. a cutting knife; 310. a blade; 311. a knife handle; 312. an assembly end; 313. a slider; 314. assembling a groove; 315. a chute; 316. a spring; 317. inserting a block; 318. a slot; 319. a threaded hole; 32. pressing the arm; 320. swinging arms; 321. a connecting rod; 322. a limiting groove; 33. a base; 330. a pillar; 331. a support shaft; 4. a support rod.

Detailed Description

Embodiments of the present invention are further described with reference to fig. 1 to 6.

The utility model provides a cutting mechanism for producing thermoplastic polyurethane material, includes base 1, is located cooling bath 2 on base 1 and is located the cutting part 3 of cooling bath 2 top, cutting part 3 includes base 33 and with base 33 normal running fit's knife rest 30, be equipped with a plurality of detachable cutting knife 31 on the knife rest 30, be equipped with on the knife rest 30 and press arm 32, press arm 32 including two swing arms 320 and the connecting rod 321 of connecting two swing arms 320, swing arm 320 fixes on knife rest 30 through the pivot, can carry out clockwise or anticlockwise rotation, all be equipped with on swing arm 320 and be the arc and have open-ended spacing groove 322, be equipped with the stopper one 300 with spacing groove 322 adaptation on the outer wall of cooling bath 2, be equipped with the stopper two 20 of contradicting with swing arm 320 on the knife rest 30, cutting knife 31 includes blade 310 and cutting knife handle 311, be equipped with cylindrical assembly end 312 on the blade 310, the improved screwdriver is characterized in that sliding blocks 313 are arranged on two sides of the assembling end 312, an assembling groove 314 matched with the assembling end 312 is formed in the screwdriver handle 311, two sliding grooves 315 are formed in the inner wall of the assembling groove 314, the sliding blocks 313 are located in the sliding grooves 315 in a sliding fit mode, a spring 316 is arranged on the inner wall of one side of each sliding groove 315, the spring 316 abuts against the sliding blocks 313, and the sliding blocks 313 are driven to abut against the inner wall of the other side of the sliding grooves 315. One end of the tool holder 311, which is far away from the assembling groove 314, is provided with a cross-shaped inserting block 317, the tool holder 30 is provided with a slot 318 which is matched with the inserting block 317, and the inner wall of the slot 318 and the inserting block 317 are provided with threaded holes 319 with the same diameter. The base 1 is further provided with a holding rod 4 for the tool rest 30 to lean against, and the holding rod 4 is in an inclined state. The base 33 comprises two support columns 330 and a support shaft 331 positioned between the two support columns 330, and the tool holder 30 is sleeved on the support shaft 331 and is in rotating fit with the support shaft 331.

The mixed liquid is located and is holistic cubic after cooling off in cooling bath 2, when the cutting, knife rest 30 takes cutting knife 31 to push down towards cooling bath 2 directions, then through pressing connecting rod 321, drive swing arm 320 clockwise rotation, swing arm 320 is at the pivoted in-process, its outer wall is inconsistent with two 20 stoppers, spacing groove 322 on swing arm 320 then cooperates with stopper one 300, make knife rest 30 and cooling bath 2's terminal surface closely laminate rapidly, make cutting knife 31 can the application of force cut the material simultaneously. Such structure setting through the cooperation of swing arm 320 and stopper 300, replaces artifical application of force to push down knife rest 30, does benefit to and reduces artifical labour, has promoted the efficiency and the quality of cutting simultaneously, avoids the material once to cut the condition emergence not in place.

When the blade 310 on the cutting knife 31 cuts a material, the blade 310 is forced to move towards the direction of the handle 311, the sliding block 313 is positioned in the sliding groove 315 for sliding fit, and the spring 316 is arranged, so that the force of the blade 310 pressed during cutting can be reduced, and the function of protecting the blade 310 is achieved.

The handle of a knife 311 is through the slot 318 cooperation on inserted block 317 and the knife rest 30, wears to establish screw hole 319 by the bolt again and carries out fixed mounting, realizes the detachable construction of cutting knife 31, like this at the impaired back of cutting knife 31, can in time maintain the change.

It is above only the utility model discloses a preferred embodiment, the utility model discloses a scope of protection does not only confine above-mentioned embodiment, the all belongs to the utility model discloses a technical scheme under the thinking all belongs to the utility model discloses a scope of protection. It should be noted that, for those skilled in the art, various modifications and decorations can be made without departing from the principle of the present invention, and these modifications and decorations should also be regarded as the protection scope of the present invention.

Claims (4)

1. A cutting mechanism for producing thermoplastic polyurethane material, includes base, the cooling tank that is located on the base and the cutting portion that is located the cooling tank top, its characterized in that: the cutting part comprises a base and a knife rest which is in running fit with the base, a plurality of detachable cutting knives are arranged on the knife rest, a pressing arm is arranged on the knife rest and comprises two swing arms and a connecting rod which is connected with the two swing arms, the swing arms are fixed on the knife rest through a rotating shaft and can rotate clockwise or anticlockwise, the swing arms are respectively provided with an arc limiting groove with an opening, the outer wall of the cooling groove is provided with a first limiting block matched with the limiting groove, the knife rest is provided with a second limiting block which is butted with the swing arms, the cutting knives comprise blades and knife handles, the blades are provided with columnar assembling ends, sliding blocks are arranged on two sides of the assembling ends, the knife handles are provided with assembling grooves matched with the assembling ends, two sliding grooves are arranged on the inner walls of the assembling grooves, the sliding blocks are positioned in the sliding grooves and are in sliding fit, and springs are arranged on the inner walls of one sides of the sliding grooves, the spring is abutted against the sliding block, and the sliding block is driven to be abutted against the inner wall of the other side of the sliding groove.

2. A cutting mechanism for use in the production of thermoplastic polyurethane material as claimed in claim 1, wherein: one end of the knife handle, which is far away from the assembling groove, is provided with a cross-shaped inserting block, the knife rest is provided with a slot matched with the inserting block, and the inner wall of the slot and the inserting block are provided with threaded holes with the same diameter.

3. A cutting mechanism for use in the production of thermoplastic polyurethane material as claimed in claim 1, wherein: the base is further provided with a holding rod for the tool rest to lean against, and the holding rod is in an inclined state.

4. A cutting mechanism for use in the production of thermoplastic polyurethane material as claimed in claim 1, wherein: the base includes two pillars and is located the back shaft between two pillars, the tool rest cover is established normal running fit on the back shaft.

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