CN209869217U

CN209869217U - Cut split type forming die of PU cutter for wool

Info

Publication number: CN209869217U
Application number: CN201920357899.0U
Authority: CN
Inventors: 周鹏升; 陈玉谢; 刘灵芝
Original assignee: Shenzhen Pepson Industrial Co Ltd
Current assignee: Shenzhen Pepson Industrial Co Ltd
Priority date: 2019-03-20
Filing date: 2019-03-20
Publication date: 2019-12-31
Anticipated expiration: 2029-03-20

Abstract

The utility model relates to a split type forming die of PU cutter for shearing wool, which comprises a tray, a central fixed rod positioned at the center of the tray, an inner die arranged on the central fixed rod in a penetrating way, eleven movable modules arranged on the tray and evenly distributed along the periphery of the inner die, wherein the upper end of the central fixed rod and the upper part of the inner die are also provided with fastening end plates; the outer wall of the inner die is provided with a tooth die for forming positioning teeth on the PU cutter; the outer side of each movable module is respectively connected with a driving cylinder, the driving cylinders are fixed on the tray, the inner side surface of each movable module is provided with a protruding part of a through groove between the formed cutting edges, and the protruding part of each movable module is in a shape of a < ">; eleven movable modules and eleven driving cylinders are uniformly distributed on the tray. Adopt the utility model discloses the mould production PU cutter is simple not only processing steps, reduces the work operation, practices thrift the cost, and the product size is stable moreover, and is with low costs, convenient to use.

Description

Cut split type forming die of PU cutter for wool

The technical field is as follows:

the utility model relates to the technical field of mold, refer in particular to a cut split type forming die of PU cutter for wool.

Background art:

the existing cutter for shearing wool is usually made of all-metal materials, the production process is complex, the cost is high, the weight is heavy, the operation and the control are not easy, and the wool is easy to hurt when in practical application. For this purpose, the applicant developed a PU cutter for wool cutting, which is structured as shown in fig. 1.

The utility model has the following contents:

the utility model aims at providing a cut split type forming die of PU cutter for wool to adaptation PU cutter shaping needs.

The utility model adopts the technical proposal that: a split type forming die of a PU cutter for shearing wool comprises a tray, a central fixed rod positioned in the center of the tray, an inner die penetrating through the central fixed rod, eleven movable modules arranged on the tray and evenly distributed along the periphery of the inner die, and fastening end plates are further arranged at the upper end of the central fixed rod and the upper part of the inner die; the outer wall of the inner die is provided with a tooth die for forming positioning teeth on the PU cutter; the outer side of each movable module is respectively connected with a driving cylinder, the driving cylinders are fixed on the tray, the inner side surface of each movable module is provided with a protruding part of a through groove between the formed cutting edges, and the protruding part of each movable module is in a shape of a < ">; eleven movable modules and eleven driving cylinders are uniformly distributed on the tray.

Adopt the utility model discloses the mould production PU cutter is simple not only processing steps, reduces the work operation, practices thrift the cost, and the product size is stable moreover, and is with low costs, convenient to use.

Description of the drawings:

fig. 1 is a schematic perspective view of the present invention.

Fig. 2 is a schematic view of a mold for molding the present invention.

The specific implementation mode is as follows:

the present invention will be further described with reference to the following specific embodiments and accompanying drawings.

As shown in fig. 1, the PU cutter for a sheep shearer comprises a hollow cylindrical lining 1 cast by a high-hardness PU material with a hardness of shore 70D-75D, and a low-hardness PU layer 2 formed by covering the side wall of the hollow cylindrical lining with a PU material with a hardness of shore 90A-95A, wherein the thickness of the low-hardness PU layer 2 is 5mm-10 mm; the inner wall of the hollow cylindrical lining 1 is provided with a plurality of positioning teeth 11 along the direction parallel to the axial direction, and the positioning teeth 11 on the inner wall of the hollow cylindrical lining 1 are engaged with keys or teeth of a driving device to form driving; the outer side wall of the PU cutter is formed with a plurality of scraper teeth 3, the cutting edge 31 of each scraper tooth 3 is in a shape of a 'T', the middle section of the cutting edge 31 is in a circular arc shape, and the acute angle included angle of two sections of inclined sections of the cutting edge relative to the axis of the cutter is 20-40 degrees; a through groove 4 with a U-shaped radial section is arranged between the adjacent scraper teeth 3, and the through groove 4 is also in a shape of a < "> along the height direction of the cutter; the scraper teeth 3 are designed into a shape of & lt- & gt and the & lt- & gt-shaped through grooves 4 between the scraper teeth are beneficial to leading out the cut wool from the two ends of the scraper, so that the cut wool is smoother.

The number of the positioning teeth on the inner wall of the hollow cylindrical lining 1 is 12; the number of scraper teeth 3 is 11.

As shown in fig. 2, the PU cutter is manufactured by a split mold, the split mold comprises a tray 5, a central fixing rod 6 located at the center of the tray 5, an inner mold (not shown in the figure) penetrating the central fixing rod, eleven movable modules 7 arranged on the tray 5 and evenly distributed along the periphery of the inner mold, and fastening end plates 61 are further arranged at the upper end of the central fixing rod 6 and the upper part of the inner mold; the outer wall of the inner die is provided with a tooth die for forming positioning teeth 11 on the PU cutter; the outer side of each movable module 7 is respectively connected with a driving cylinder 8, the driving cylinders 8 are fixed on the tray 5, the inner side surface of each movable module 7 is provided with a protruding part 71 of the through groove 4 between the forming blades, the shape of each protruding part 71 is equivalent to that of the through groove 4, and a space for forming the scraper teeth 3 is formed between the adjacent movable modules 7; eleven movable modules 7 and eleven driving cylinders 8 are uniformly distributed on the tray 5, when the cylinders act simultaneously, the eleven movable modules 7 are drawn close inwards to form a circle, and a space for forming the PU cutter is formed between the movable modules 7 and the inner die.

Because the PU cutter of the utility model is provided with the high hardness inner lining and the low hardness PU layer which are made of two materials with different hardness, two times of pouring are needed to be carried out through two sets of the moulds, wherein a set of small-sized (i.e. the inner diameter is smaller after the movable mould blocks are folded) hollow cylindrical lining 1 is molded by casting, the inner wall of the lining is provided with positioning teeth 11, then opening the movable mould block and the fastening plate of the first set of mould, taking out the hollow cylindrical lining 1, then placing the formed hollow cylindrical lining into a second set of mould with relatively large size (namely the inner diameter is slightly larger after the movable mould block is folded and the inner mould is not needed in the second set of mould) for positioning, carrying out second pouring, wherein the second pouring adopts PU material with lower hardness, and forming the low-hardness PU layer 2 with the thickness of 5-10mm on the outer side wall of the lining, opening the movable module and the fastening plate of the second set of die after forming, and taking out to finish the manufacture of the PU wool shearing tool.

The PU cutter is made of two PU materials with different hardness and compounded together, and the lining hollow high-hardness PU is connected with equipment, so that the PU cutter has the characteristics of protecting the equipment and preventing deformation under the condition of stronger stress; the low-hardness PU layer with relatively softer outside is used as a contact layer with the sheep, and the low-hardness PU layer can play a good role in damping and buffering, so that the sheep can be prevented from being damaged by a cutter in the contact process with the sheep; and the PU material is not sticky, so that the cleaning is convenient.

Claims

1. The utility model provides a cut split type forming die of PU cutter for wool which characterized in that: the split type die comprises a tray, a central fixed rod positioned in the center of the tray, an inner die penetrating through the central fixed rod, and eleven movable modules which are arranged on the tray and evenly distributed along the periphery of the inner die, wherein fastening end plates are also arranged at the upper end of the central fixed rod and the upper part of the inner die; the outer wall of the inner die is provided with a tooth die for forming positioning teeth on the PU cutter; the outer side of each movable module is respectively connected with a driving cylinder, the driving cylinders are fixed on the tray, the inner side surface of each movable module is provided with a protruding part of a through groove between the formed cutting edges, and the protruding part of each movable module is in a shape of a < ">; eleven movable modules and eleven driving cylinders are uniformly distributed on the tray.