阅读说明：本技术 一种联动滑环式同步旋转多功能开合摩擦辊 (Linkage slip ring type synchronous rotation multifunctional opening and closing friction roller ) 是由 刘之乾 刘涛 杨坤 于 2020-05-15 设计创作，主要内容包括：本发明提供一种联动滑环式同步旋转多功能开合摩擦辊,其解决了现有牵引机摩擦部件只能满足零度铺丝工艺的复合型材的技术问题,其左半圆滑道、右半圆滑道分别与剪刀叉式支架铰接；左半圆滑道设左半圆形滑槽,右半圆滑道设右半圆形滑槽；开合摩擦机构摩擦部件固定台,摩擦部件固定台内侧连接摩擦块,摩擦部件固定台外缘连接滑道滚动部件轴,滑道滚动部件轴连接第一轴承,第一轴承滚动连接在左半圆形滑槽和/或右半圆形滑槽内；当左半圆滑道和右半圆滑道相闭合时,左半圆形滑槽与右半圆形滑槽构成完整圆形滑槽,多个摩擦机构本体周向设在完整圆形滑槽内,且每个摩擦机构本体的摩擦块朝向所夹持成型体,可广泛应用于纺织设备技术领域。(The invention provides a linkage sliding ring type synchronous rotation multifunctional opening and closing friction roller, which solves the technical problem that the friction part of the existing tractor can only meet the technical requirement of a composite section bar of a zero-degree wire laying process, and a left semicircular slideway and a right semicircular smooth slideway of the friction part are respectively hinged with a scissor fork type support; the left semicircular slideway is provided with a left semicircular chute, and the right semicircular slideway is provided with a right semicircular chute; the inner side of the friction part fixing table of the opening and closing friction mechanism is connected with a friction block, the outer edge of the friction part fixing table is connected with a slideway rolling part shaft, the slideway rolling part shaft is connected with a first bearing, and the first bearing is connected in the left semicircular chute and/or the right semicircular chute in a rolling manner; when the left semicircular slideway and the right semicircular slideway are closed, the left semicircular chute and the right semicircular chute form a complete circular chute, the plurality of friction mechanism bodies are circumferentially arranged in the complete circular chute, and the friction block of each friction mechanism body faces towards the clamped formed body, so that the friction mechanism can be widely applied to the technical field of textile equipment.)

1. A linkage sliding ring type synchronous rotation multifunctional opening and closing friction roller is characterized by being provided with a left semicircular slideway, a right semicircular slideway, a scissor fork type support and an opening and closing friction mechanism, wherein the left semicircular slideway is hinged with the scissor fork type support, and the right semicircular slideway is hinged with the scissor fork type support; the inner edge of the left semicircular slideway is provided with a left semicircular sliding groove, and the inner edge of the right semicircular slideway is provided with a right semicircular sliding groove; the opening and closing friction mechanism is provided with a friction mechanism body, the friction mechanism body is provided with a friction part fixing table and a friction block, the inner side of the friction part fixing table is connected with the friction block, the outer edge of the friction part fixing table is connected with a slideway rolling part shaft, the slideway rolling part shaft is connected with a first bearing, and the first bearing is arranged in the left semicircular chute and/or the right semicircular chute in a rolling connection manner; the friction mechanism bodies are arranged in a plurality of numbers; when the left semicircular slideway and the right semicircular slideway rotate around the pin shafts of the left semicircular slideway and the right semicircular slideway and are closed with the scissor fork type bracket respectively, the left semicircular chute and the right semicircular chute are communicated to form a complete circular chute, a plurality of friction mechanism bodies are circumferentially arranged in the complete circular chute, and the friction block of each friction mechanism body faces to the clamped forming body; when the left semicircular slideway and the right semicircular slideway rotate around the pin shafts of the left semicircular slideway and the scissors fork type bracket respectively to be opened, the left semicircular chute is separated from the right semicircular chute.

2. The linkage slip ring type synchronous rotation multifunctional opening and closing friction roller as claimed in claim 1, further comprising a pair of left semicircular flanges and a pair of right semicircular flanges, wherein one left semicircular flange is respectively mounted on two sides of the left semicircular slideway, connecting half pipes of the two left semicircular flanges are oppositely arranged at intervals, and the connecting half pipe of each left semicircular flange and the left semicircular chute form a pair of left semicircular chutes; the two sides of the right semicircular slideway are respectively provided with one right semicircular flange, the connecting half pipes of the two right semicircular flanges are oppositely arranged at intervals, and the connecting half pipe of each right semicircular flange and the right semicircular chute form a pair of right semicircular annular chutes; two ends of the slideway rolling component shaft are respectively connected with a first bearing, and the first bearings are correspondingly arranged in the left semi-annular chute and/or the right semi-annular chute in a rolling way; when the left semi-circular slideway and the right semi-circular slideway rotate around the pin shaft of the scissor fork type support and are closed, the left semi-circular chute and the right semi-circular chute are correspondingly communicated at the same side to form a pair of complete circular chutes.

3. The linkage slip ring type synchronous rotation multifunctional opening and closing friction roller as claimed in claim 1, wherein a left opening and closing shifting fork is connected to the outer edge of the left semicircular slideway, and a right opening and closing shifting fork is connected to the outer edge of the right semicircular slideway.

4. The linkage sliding ring type synchronous rotation multifunctional opening and closing friction roller as claimed in claim 1, wherein the friction mechanism body is further provided with a left wedge-shaped block, a right wedge-shaped block, a lower wedge-shaped block, a positive and negative lead screw, a positive screw lug seat, a negative screw lug seat and a guide piece; the left wedge block and the right wedge block are oppositely arranged between the friction part fixing table and the lower wedge block, the left wedge block and the right wedge block are respectively in sliding connection with the friction part fixing table, the left wedge block is in sliding connection with a left sliding inclined plane of the lower wedge block, the right wedge block is in sliding connection with a right sliding inclined plane of the lower wedge block, and the bottom surface of the lower wedge block is connected with the friction block; one end of the positive and negative screw rod is in adaptive connection with the positive screw lug seat, the other end of the positive and negative screw rod is in adaptive connection with the negative screw lug seat, the positive screw lug seat and the negative screw lug seat are respectively arranged on the left side and the right side of the friction part fixing table, the positive screw lug seat is connected with the left wedge-shaped block, and the negative screw lug seat is connected with the right wedge-shaped block; the lower wedge-shaped block is provided with a guide through hole, one end of the guide piece is connected with the friction part fixing table, and the other end of the guide piece penetrates through the guide through hole and extends out; when the positive and negative lead screw rotates, the left wedge block of the positive screw lug seat and the right wedge block of the negative screw lug seat are arranged, and the right wedge blocks are back to back or slide relatively, and the lower wedge block is close to or far away from the friction part fixing table along the guide piece.

5. The linked slip-ring type synchronous rotation multifunctional opening and closing friction roller as claimed in claim 4, wherein the left wedge-shaped block and the right wedge-shaped block are same in structural shape, both trapezoid in longitudinal section and opposite in tip.

6. The linkage slip ring type synchronous rotation multifunctional opening and closing friction roller as claimed in claim 4, wherein the friction part fixing table is provided with a mounting through hole, and the forward and reverse lead screws are fixedly arranged in the mounting through hole through a second bearing.

7. The linkage sliding ring type synchronous rotation multifunctional opening and closing friction roller as claimed in claim 4, wherein the guide member is a guide pin, a pin cap of the guide pin is arranged on the outer side of the lower wedge block, the size of the pin cap is larger than the aperture of the guide through hole, a pin rod of the guide pin penetrates through the guide through hole to be in threaded connection with the friction member fixing table, and the pin rod is in sliding connection with the guide through hole.

8. The linking slip ring type synchronous rotation multifunctional opening and closing friction roller as claimed in claim 4, wherein the friction mechanism body is of a bilateral symmetry structure.

9. The linkage slip ring type synchronous rotation multifunctional opening and closing friction roller as claimed in claim 4, wherein the number of the friction mechanism bodies is two, and the friction blocks of the two friction mechanism bodies are arranged at intervals relatively.

10. The linking slip ring type synchronous rotation multifunctional opening and closing friction roller as claimed in claim 4, wherein the bottom surface of the lower wedge block is detachably connected with the friction block.

Technical Field

The invention relates to the technical field of textile equipment, in particular to a linkage sliding ring type synchronous rotation multifunctional opening and closing friction roller.

Background

In recent years, the market demand of carbon fiber composite materials is rapidly increasing due to their unique characteristics of high strength, low density, corrosion resistance, aging resistance, and the like. In the continuous production of carbon fiber composite materials, in particular composite profiles, a tractor is one of the indispensable devices on the production line.

And the friction member, which is one of the core members of the traction machine, determines the range of use of the traction machine. The prior general tractor generally adopts a chain-driven crawler-type circumferential circulation traction mechanism, and a friction part of the tractor moves linearly along the advancing direction of a clamped formed body in the traction process, so that the production process of the composite section bar only can meet the zero-degree wire laying process, and the production process which needs zero-degree wire laying and radial surrounding wire laying, namely the clamped formed body rotates radially in the linear advancing process cannot be met. The above problems are urgently needed to be solved.

Disclosure of Invention

The invention aims to solve the technical defects and provides a linkage slip ring type synchronous rotation multifunctional opening and closing friction roller, which meets the requirement of a production process that a clamped forming body rotates radially in the linear advancing process.

Therefore, the invention provides a linkage sliding ring type synchronous rotation multifunctional opening and closing friction roller which is provided with a left semicircular slideway, a right semicircular slideway, a scissor fork type bracket and an opening and closing friction mechanism, wherein the left semicircular slideway is hinged with the scissor fork type bracket, and the right semicircular slideway is hinged with the scissor fork type bracket; the inner edge of the left semicircular slideway is provided with a left semicircular sliding groove, and the inner edge of the right semicircular slideway is provided with a right semicircular sliding groove; the opening and closing friction mechanism is provided with a friction mechanism body, the friction mechanism body is provided with a friction part fixing table and a friction block, the inner side of the friction part fixing table is connected with the friction block, the outer edge of the friction part fixing table is connected with a slideway rolling part shaft, the slideway rolling part shaft is connected with a first bearing, and the first bearing is arranged in the left semicircular chute and/or the right semicircular chute in a rolling connection manner; the number of the friction mechanism bodies is multiple; when the left semicircular slideway and the right semicircular slideway rotate around the pin shafts of the left semicircular slideway and the right semicircular slideway and are closed with the scissor fork type bracket respectively, the left semicircular chute and the right semicircular chute are communicated to form a complete circular chute, a plurality of friction mechanism bodies are circumferentially arranged in the complete circular chute, and a friction block of each friction mechanism body faces towards a clamped forming body; when the left semicircular slideway and the right semicircular slideway rotate around the pin shafts of the left semicircular slideway and the scissors fork type bracket respectively to be opened, the left semicircular chute is separated from the right semicircular chute.

Preferably, the invention is also provided with a pair of left semicircular flanges and a pair of right semicircular flanges, two sides of the left semicircular slideway are respectively provided with one left semicircular flange, the connecting half pipe of each left semicircular flange is arranged at intervals oppositely, and the connecting half pipe of each left semicircular flange and the left semicircular chute form a pair of left semicircular chutes; the two sides of the right semicircular slideway are respectively provided with a right semicircular flange, the connecting half pipes of each right semicircular flange are oppositely arranged at intervals, and the connecting half pipes of each right semicircular flange and the right semicircular chutes form a pair of right semicircular annular chutes; two ends of the slideway rolling component shaft are respectively connected with a first bearing, and the first bearings are correspondingly arranged in the left semi-annular chute and/or the right semi-annular chute in a rolling way; when the left semicircular slideway and the right semicircular slideway rotate around the pin shafts of the left semicircular slideway and the right semicircular slideway and are closed with the scissors fork type bracket, the left semicircular chute and the right semicircular chute are correspondingly communicated with each other at the same side to form a pair of complete annular chutes.

Preferably, the outer edge of the left semicircular slideway is connected with a left opening and closing shifting fork, and the outer edge of the right semicircular slideway is connected with a right opening and closing shifting fork.

Preferably, the friction mechanism body is further provided with a left wedge-shaped block, a right wedge-shaped block, a lower wedge-shaped block, a positive and negative screw rod, a positive screw lug seat, a negative screw lug seat and a guide piece; the left wedge block and the right wedge block are oppositely arranged between the friction part fixing table and the lower wedge block, the left wedge block and the right wedge block are respectively connected with the friction part fixing table in a sliding mode, the left wedge block is connected to a left sliding inclined plane of the lower wedge block in a sliding mode, the right wedge block is connected to a right sliding inclined plane of the lower wedge block in a sliding mode, and the bottom surface of the lower wedge block is connected with the friction block; one end of the positive and negative screw rod is in adaptive connection with the positive screw lug seat, the other end of the positive and negative screw rod is in adaptive connection with the negative screw lug seat, the positive screw lug seat and the negative screw lug seat are respectively arranged on the left side and the right side of the friction part fixing table, the positive screw lug seat is connected with the left wedge block, and the negative screw lug seat is connected with the right wedge block; the lower wedge block is provided with a guide through hole, one end of the guide piece is connected with the friction part fixing table, and the other end of the guide piece penetrates through the guide through hole and extends out; when the positive and negative lead screw rotates, the left wedge block provided with the positive screw lug seat and the right wedge block provided with the negative screw lug seat simultaneously slide back to back or relatively slide, and the lower wedge block is close to or far away from the friction part fixing table along the guide piece.

Preferably, the left wedge block and the right wedge block are identical in structural shape, the longitudinal sections of the left wedge block and the right wedge block are both trapezoidal, and the tips of the left wedge block and the right wedge block are opposite.

Preferably, the friction part fixing table is provided with a mounting through hole, and the positive and negative lead screws are fixedly arranged in the mounting through hole through the second bearing.

Preferably, the guide piece is a guide pin, a pin cap of the guide pin is arranged on the outer side of the lower wedge-shaped block, the size of the pin cap is larger than the aperture of the guide through hole, a pin rod of the guide pin penetrates through the guide through hole to be in threaded connection with the friction part fixing table, and the pin rod is in sliding connection with the guide through hole.

Preferably, the friction mechanism body is of a left-right symmetrical structure.

Preferably, the number of the friction mechanism bodies is two, and the friction blocks of the two friction mechanism bodies are arranged at intervals relatively.

Preferably, the bottom surface of the lower wedge block is detachably connected with the friction block.

The invention has the beneficial effects that: the invention provides a linkage sliding ring type synchronous rotation multifunctional opening and closing friction roller which is reasonable in structural design and meets the requirement of a production process that a clamped forming body rotates radially in the linear advancing process.

(1) The open-close circular sliding chute (namely, a sliding ring) structure formed by the left semicircular slideway and the right semicircular slideway is adopted, and the open-close friction mechanism and the clamped forming body synchronously rotate to meet the process requirement of radially surrounding and laying the wires on the basis of the existing zero-degree laying of the wires. In addition, various friction mechanism body combination design schemes can be adopted in the slip ring structure according to the actual shape of the clamped forming body.

(2) The friction mechanism body adopts a positive and negative lead screw structure, the movable left and right wedge blocks are driven to move in the positive and negative directions through the matching of the positive and negative lead screws and the positive and negative lug seats, the lower wedge block is close to or far away from the friction part fixing table, so that the pressure of the friction block on a clamped forming body is adjusted, the friction force between the friction block and the clamped forming body is further adjusted, the process requirements in actual production are met, the application range of a tractor is expanded, and the efficiency and operability of the clamped forming body are improved.

Drawings

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

FIG. 2 is a schematic structural view of the left side view shown in FIG. 1;

FIG. 3 is a schematic structural view of the enlarged view of FIG. 1 with the left and right opening/closing forks and scissor brackets removed;

FIG. 4 is a schematic left side view of the opening and closing friction mechanism and the right round track shown in FIG. 3; since fig. 3 shows a left-right symmetrical structure, fig. 4 is a structural schematic diagram of a right side view of the opening and closing friction mechanism and the left semicircular slideway shown in fig. 3;

FIG. 5 is a schematic structural view of a partial sectional view A-A shown in FIG. 3;

FIG. 6 is a schematic structural view of a bottom view of the friction mechanism body;

FIG. 7 is a schematic structural view of a partial sectional view B-B shown in FIG. 6;

fig. 8 is a schematic structural view of a partial sectional view C-C shown in fig. 6.

The labels in the figure are: 1. the novel hydraulic cylinder comprises a left semicircular slideway, a right semicircular slideway, a scissor fork type support, a friction mechanism for opening and closing, a left semicircular slideway, a right semicircular slideway, a friction mechanism body, a friction part fixing table, a friction block, a slide rail rolling part shaft, a first bearing, a pin shaft, a left wedge block, a right wedge block, a lower wedge block, a right and reverse lead screw, a right screw lug seat, a guide piece, a left sliding inclined surface, a right sliding inclined surface, a left opening and closing shifting fork, a right opening and closing, a mounting through hole, a second bearing, a guide pin, a left semicircular flange, a right semicircular flange, a left semicircular slideway, a right annular slideway, a right sliding groove, a right sliding.

Detailed Description

The invention is further described below in conjunction with the drawings and the specific embodiments to assist in understanding the contents of the invention. The method used in the invention is a conventional method if no special provisions are made; the raw materials and the apparatus used are, unless otherwise specified, conventional commercially available products.

As shown in fig. 1 to 5, the invention provides a linkage slip ring type synchronous rotation multifunctional opening and closing friction roller, which is provided with a left semicircular slideway 1, a right semicircular smooth way 2, a scissor fork type support 3 and an opening and closing friction mechanism 4, wherein the left semicircular slideway 1 is hinged with the scissor fork type support 3, and the right semicircular smooth way 2 is hinged with the scissor fork type support 3; the inner edge of the left semicircular slideway 1 is provided with a left semicircular sliding groove 5, and the inner edge of the right semicircular slideway 2 is provided with a right semicircular sliding groove 6. The opening and closing friction mechanism 4 is provided with a friction mechanism body 7, the friction mechanism body 7 is provided with a friction part fixing table 8 and a friction block 9, the inner side of the friction part fixing table 8 is connected with the friction block 9, the friction block 9 is in direct contact with a clamped forming body, the outer edge of the friction part fixing table 8 is connected with a slideway rolling part shaft 10, the slideway rolling part shaft 10 is connected with a first bearing 11, and the first bearing 11 is arranged in the left semicircular chute 5 and/or the right semicircular chute 6 in a rolling connection manner; the friction mechanism bodies 7 are arranged in a plurality of numbers; when the left semicircular slideway 1 and the right semicircular slideway 2 rotate around the pin shafts 12 of the left semicircular slideway 1 and the right semicircular slideway 2 and the scissor fork type bracket 3 to be closed, the left semicircular chute 5 and the right semicircular chute 6 are communicated to form a complete circular chute, a plurality of friction mechanism bodies 7 are circumferentially arranged in the complete circular chute, a friction block 9 of each friction mechanism body 7 faces towards a clamped forming body, and at the moment, the friction blocks 9 of each friction mechanism body 7 clamp the forming body together; under the driving of external force, the clamped formed body is driven to rotate, friction force is generated between the friction block 9 and the clamped formed body at the moment, and therefore the friction mechanism bodies 7 are driven to do synchronous circular motion with the clamped formed body in a complete circular slide way formed by the fact that the left semicircular sliding groove 5 and the right semicircular sliding groove 6 are communicated, and the rotation of the clamped formed body along the circumferential circular slide way is achieved while the friction mechanism bodies 7 cooperatively clamp the formed body. Meanwhile, under the action of external force, the clamped forming body is pulled to do linear motion with limited stroke along the axial direction of the clamped forming body, so that the production process that the clamped forming body does radial rotation in the linear advancing process is met. When the clamped forming body stops rotating, the left semicircular slideway 1 and the right semicircular slideway 2 rotate around the pin shafts 12 of the left semicircular slideway and the right semicircular slideway and the scissor fork type bracket 3 respectively to be opened, the left semicircular chute 5 is separated from the right semicircular chute 6, and the friction block 9 is separated from the clamped forming body.

As a preferred embodiment, as shown in FIG. 1, in order to make the clamped molded body more stable in the linear traveling process, the scissor-type bracket 3 can be provided with a guide hole 31. in the invention, when the scissor-type bracket is installed and used, a guide shaft is installed on a tractor, the guide shaft penetrates through the guide hole 31, the guide shaft is connected with the guide hole 31 in a sliding manner, the guide shaft is arranged in parallel with the linear traveling direction of the clamped molded body, and the wire guide shaft is matched with the guide hole 31 for use, so that the clamped molded body is ensured to be more stable in the linear traveling process. As a further preferred embodiment, the guide hole 31 serves as a hinge point for the scissor-like brackets 3.

As a preferred embodiment, as shown in fig. 1 to 5, the present invention further comprises a pair of left semicircular flanges 27 and a pair of right semicircular flanges 28, wherein two sides of the left semicircular slideway 1 are respectively provided with one left semicircular flange 27, the connecting half pipes of the two left semicircular flanges 27 are oppositely arranged at intervals, and the connecting half pipe of each left semicircular flange 27 and the left semicircular chute 5 form a pair of left semicircular chutes 29; the two sides of the right semicircular slideway 2 are respectively provided with a right semicircular flange 28, the connecting half pipes of the two right semicircular flanges 28 are oppositely arranged at intervals, and the connecting half pipe of each right semicircular flange 28 and the right semicircular chute 6 form a pair of right semicircular annular chutes 30; two ends of the slideway rolling component shaft 10 are respectively provided with a first bearing 11 in a connecting way, and the first bearings 11 are correspondingly arranged in a pair of left semi-annular chutes 29 and/or a pair of right semi-annular chutes 30 in a rolling way; when the left semicircular slideway 1 and the right semicircular slideway 2 rotate around the pin shafts 12 of the left semicircular slideway 1 and the right semicircular slideway 2 and are closed with each other, the left semicircular chute 29 and the right semicircular chute 30 are correspondingly communicated with each other at the same side to form a pair of complete annular chutes. The left semi-annular chute 29 and the right semi-annular chute 30 are structurally arranged, so that the first bearing 11 is more stable in the rolling process of the left semi-annular chute 5 and the right semi-annular chute 6, and the friction mechanism body 7 is more stable and firmer when rotating circumferentially in the complete circular chute. It should be noted that the semicircular flange belongs to the existing device, that is, a half of the circular flange, the circular flange is provided with a flange mounting plate and a connecting pipe which are connected with each other, and then the semicircular flange is provided with a connecting half pipe and a semicircular flange mounting plate which are connected with each other. In the invention, a left semicircular flange 27 is arranged on a left semicircular slideway 1 through a semicircular flange mounting disc, a right semicircular flange 28 is arranged on a right semicircular slideway 2 through a semicircular flange mounting disc, a connecting semicircular pipe of the left semicircular flange 27 extends into a left semicircular chute 5, and a connecting semicircular pipe of the right semicircular flange 28 extends into a right semicircular chute 6.

As a preferred embodiment, as shown in fig. 1 and 2, a left opening and closing shifting fork 22 is connected to the outer edge of the left semicircular slideway 1, and a right opening and closing shifting fork 23 is connected to the outer edge of the right semicircular slideway 2; the left opening and closing shifting fork 22 and the right opening and closing shifting fork 23 are generally rod-shaped structures, wherein one end of the left opening and closing shifting fork 22 is connected with the outer edge of the left semicircular slideway 1, and the other end of the left opening and closing shifting fork 22 is used for being connected with a power source; one end of the right opening and closing shifting fork 23 is connected with the outer edge of the right semi-smooth channel 2, and the other end of the right opening and closing shifting fork 23 is used for being connected with a power source. Under the action of external force (such as power sources of a synchronous cylinder, an oil cylinder and the like), the left opening and closing shifting fork 22 and the right opening and closing shifting fork 23 respectively drive the left semicircular slideway 1 and the right semicircular slideway 2 to synchronously tighten inwards by taking the pin shaft 12 of the scissor fork type support 3 as a hinge shaft, so that the left semicircular slideway 1 and the right semicircular slideway 2 are closed to form a complete circular slideway, and therefore enough constraint force is provided for the friction mechanism body 7. After the clamped forming body is dragged to complete a limited stroke, the left opening and closing shifting fork 22 and the right opening and closing shifting fork 23 respectively drive the left semicircular slideway 1 and the right semicircular slideway 2 to synchronously open outwards by taking the pin shaft 12 of the scissor-fork type support 3 as a hinge shaft under the action of external force (such as a synchronous cylinder, an oil cylinder and the like), and the complete circular slideway closed by the left semicircular slideway 1 and the right semicircular slideway 2 is synchronously opened, namely the constraint on the friction mechanism body 7 is released, and the friction force between the friction block 9 and the clamped forming body disappears.

As a preferred embodiment, as shown in fig. 6 to 8, the friction mechanism body 7 is further provided with a friction force fine adjustment mechanism, which includes a left wedge-shaped block 13, a right wedge-shaped block 14, a lower wedge-shaped block 15, a positive and negative lead screw 16, a positive thread lug 17, a negative thread lug 18, and a guide 19; the left wedge-shaped block 13 and the right wedge-shaped block 14 are oppositely arranged between the friction part fixing table 8 and the lower wedge-shaped block 15, the left wedge-shaped block 13 and the right wedge-shaped block 14 are respectively connected with the friction part fixing table 8 in a sliding manner, the left wedge-shaped block 13 is connected on a left sliding inclined surface 20 of the lower wedge-shaped block 15 in a sliding manner, the right wedge-shaped block 14 is connected on a right sliding inclined surface 21 of the lower wedge-shaped block 15 in a sliding manner, and the bottom surface of the lower wedge-shaped block 15 is connected with the friction block 9; one end of the positive and negative screw rod 16 is in adaptive connection with a positive screw lug seat 17, the other end of the positive and negative screw rod 16 is in adaptive connection with a negative screw lug seat 18, the positive screw lug seat 17 and the negative screw lug seat 18 are respectively arranged on the left side and the right side of the friction part fixing table 8, the positive screw lug seat 17 is connected with a left wedge-shaped block 13, and the negative screw lug seat 18 is connected with a right wedge-shaped block 14; the lower wedge-shaped block 15 is provided with a guide through hole, one end of a guide piece 19 is connected with the friction part fixing table 8, and the other end of the guide piece 19 penetrates through the guide through hole and extends out; when the forward and reverse screw rod 16 rotates, the left wedge-shaped block 13 provided with the forward screw lug seat 17 and the right wedge-shaped block 14 provided with the reverse screw lug seat 18 simultaneously slide back to back or relatively slide, and the lower wedge-shaped block 15 is close to or far away from the friction part fixing table 8 along the guide piece 19.

As a preferred embodiment, as shown in fig. 6 to 8, the left wedge block 13 and the right wedge block 14 have the same structural shape, are trapezoidal in longitudinal section, and have opposite tips. The structure is simple, and the assembly and disassembly are convenient. When the positive and negative screw rods 16 rotate, when the left wedge-shaped block 13 provided with the positive screw lug seat 17 and the right wedge-shaped block 14 provided with the negative screw lug seat 18 slide relatively at the same time, the lower wedge-shaped block 15 is far away from the friction part fixing table 8 along the guide piece 19; when the left wedge block 13 with the positive lug 17 and the right wedge block 14 with the negative lug 18 slide back and forth at the same time, the lower wedge block 15 approaches the friction member fixing table 8 along the guide 19.

As a preferred embodiment, as shown in fig. 6 to 8, the friction member fixing base 8 is provided with a mounting through hole 24, and the forward/reverse screw shaft 16 is fixedly provided in the mounting through hole 24 via a second bearing 25. The structure is simple, and the assembly and disassembly are convenient.

As a preferred embodiment, as shown in fig. 6 to 8, the guide 19 is a guide pin 26, a pin cap of the guide pin 26 is disposed outside the lower wedge block 15, and the size of the pin cap is larger than the aperture of the guide through hole; the pin cap acts as a limit stop on the outside when the lower wedge 15 is moved away from the friction element holder 8 along the guide 19. The pin rod of the guide pin 26 passes through the guide through hole to be in threaded connection with the friction part fixing table 8, so that the friction part fixing table is convenient to assemble, disassemble and adjust, and the pin rod is in sliding connection with the guide through hole.

As a preferred embodiment, as shown in fig. 5, the friction mechanism body 7 has a bilaterally symmetrical structure. The structure is simple, and the assembly and disassembly are convenient.

As a preferred embodiment, as shown in fig. 5, the number of the friction mechanism bodies 7 is two, and the friction blocks 9 of the two friction mechanism bodies 7 are oppositely arranged at intervals. Two friction mechanism bodies 7 are adopted to cooperate to effectively clamp the clamped forming body, so that the clamping quality and the working efficiency are improved.

As a preferred embodiment, as shown in fig. 7, the bottom surface of the lower wedge 15 is detachably connected to the friction block 9, for example, by using a screw connection, so as to facilitate the detachment and installation, and the friction block 9 can be installed in a suitable manner according to the shape of the clamped molded body.

The working principle of the invention is as follows:

(1) the forming body is placed between the left semicircular slideway 1 and the right semicircular slideway 2, then the left opening and closing shifting fork 22 and the right opening and closing shifting fork 23 respectively drive the left semicircular slideway 1 and the right semicircular slideway 2 to synchronously tighten inwards by taking the pin shaft 12 at the upper end of the scissor fork type support 3 and the guide hole 31 at the lower end as a hinge point under the action of external force (such as a synchronous cylinder, an oil cylinder and the like), so that the left semicircular slideway 1 and the right semicircular slideway 2 are closed to form a complete circular slideway, thereby giving enough constraint force to the friction mechanism body 7, at the moment, the left semicircular slideway 5 and the right semicircular slideway 6 are communicated to form the complete circular slideway, the plurality of friction mechanism bodies 7 are circumferentially arranged in the complete circular slideway, the friction block 9 of each friction mechanism body 7 faces towards the clamping forming body, and at the moment, the friction blocks 9 clamp and fix the forming. Under the driving of external force, the clamped formed body is driven to rotate, friction force is generated between the friction block 9 and the clamped formed body at the moment, and therefore the friction mechanism bodies 7 are driven to do synchronous circular motion with the clamped formed body in a complete circular slide way formed by the fact that the left semicircular sliding groove 5 and the right semicircular sliding groove 6 are communicated, and the friction mechanism bodies 7 rotate along the circumferential circular slide way along with the rotation of the clamped formed body while cooperatively clamping the formed body. Meanwhile, under the action of external force, the clamped forming body is pulled to do linear motion with limited stroke along the guide shaft parallel to the running direction of the clamped forming body, so that the production process that the clamped forming body rotates radially in the linear advancing process is met.

When the clamped formed body is pulled to complete a limited stroke, the traction action of the invention is stopped, the clamped formed body stops rotating, then the left opening and closing shifting fork 22 and the right opening and closing shifting fork 23 drive the left semicircular slideway 1 and the right semicircular slideway 2 to synchronously open outwards by taking the pin shaft 12 at the upper end of the scissor fork type support 3 and the guide hole 31 at the lower end as hinge points under the action of external force (such as a synchronous cylinder, an oil cylinder and the like), so that the complete circular slideway formed by closing the left semicircular slideway 1 and the right semicircular slideway 2 is synchronously opened, namely, enough constraint force on the friction mechanism body 7 is relieved, and the friction block 9 is not contacted with the clamped product. Under the action of external force, the invention makes equidistant limited-stroke linear motion along the guide shaft, which is opposite to the traction direction, so as to complete the resetting action.

Under the drive of external power, the invention makes linear reciprocating motion with limited stroke, namely, the functions of traction and automatic reset of the clamped forming body are realized.

(2) When the pressure/friction force applied by the friction mechanism body 7 to the clamped forming body is larger than the bearing capacity of the clamped forming body or exceeds the process requirement, the positive and negative screw rods 16 are rotated, the left wedge-shaped block 13 provided with the positive lug seat 17 and the right wedge-shaped block 14 provided with the negative lug seat 18 simultaneously slide back to back, the lower wedge-shaped block 15 moves towards the direction close to the friction part fixing table 8 along the guide pin, the gap between the friction block 9 and the clamped forming body is increased, the pressure applied to the clamped forming body is reduced, and further the friction force between the friction block 9 and the clamped forming body is reduced. On the contrary, when the pressure/friction force applied by the friction block 9 to the clamped forming body is smaller than the process requirement, that is, when the clamped forming body cannot be effectively clamped, the phenomena of traction or slipping cannot occur, the forward and reverse screw 16 is rotated reversely, the left wedge block 13 provided with the forward screw lug seat 17 and the right wedge block 14 provided with the reverse screw lug seat 18 simultaneously slide oppositely, the lower wedge block 15 moves along the guide pin in the direction far away from the friction part fixing table 8, the gap between the friction block 9 and the clamped forming body is reduced, the pressure of the clamped forming body is increased, and further the friction force between the friction block and the clamped forming body is increased. Thereby further meeting the positive pressure of the process requirement of the clamped formed body.

In the description of the present invention, it is to be understood that the terms "left", "right", "upper", "lower", "top", "bottom", "front", "rear", "inner", "outer", "back", "middle", and the like, indicate orientations and positional relationships based on those shown in the drawings, are only for convenience in describing the present invention and simplifying the description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention. It should be noted that, in the following embodiments, the terms "first", "second" and "third" do not denote absolute differences in structure and/or function, nor do they denote a sequential order of execution, but rather are used for convenience of description.

However, the above description is only exemplary of the present invention, and the scope of the present invention should not be limited thereby, and the replacement of the equivalent components or the equivalent changes and modifications made according to the protection scope of the present invention should be covered by the claims of the present invention.