CN211254628U

CN211254628U - Rapid switching system for unfolding wheel of paper receiving machine

Info

Publication number: CN211254628U
Application number: CN201922268176.6U
Authority: CN
Inventors: 余江鹏; 靖安典
Original assignee: Dongguan Mingjia Precision Machinery Co ltd
Current assignee: Dongguan Mingjia Precision Machinery Co ltd
Priority date: 2019-12-17
Filing date: 2019-12-17
Publication date: 2020-08-14
Anticipated expiration: 2029-12-17

Abstract

The utility model discloses a rapid switching system for the unfolding wheel of a paper receiving machine, which comprises an unfolding wheel mechanism, a rapid switching driving mechanism and a rapid switching control mechanism; the air source device is matched with the air pressure proportional control valve to change the pressure directions of the left and right air pressure cavities of the air cylinder shell, the sliding piston is driven to move leftwards or rightwards in the air cylinder shell, and the flexible pull rope pulls the unfolding wheel mechanism to move leftwards or rightwards, so that the quick transfer transposition of the unfolding wheel mechanism is realized; in the process, the pressure difference between the left air pressure cavity and the right air pressure cavity of the air cylinder shell is controlled through the air pressure proportional control valve, so that the buffer of the sliding piston during the speed reduction braking and the position of the sliding piston during the final braking and stopping are realized, and the buffer of the expanding wheel mechanism during the speed reduction braking and the position of the expanding wheel mechanism during the final braking and stopping are further realized. The space is saved; the reaction is quick due to air pressure driving, and the flexible buffer effect is achieved; the air source device is matched with the air pressure proportional control valve for control, and the controllability is strong.

Description

Rapid switching system for unfolding wheel of paper receiving machine

Technical Field

The utility model relates to a meet paper machine and expand wheel quick switching technique, in particular to meet paper machine and expand wheel quick switching system.

Background

When the spreading wheel of the paper receiving machine works, the position needs to be changed to correspond to different paper rolls, so that the paper rolls are changed. At present, a motor, a chain wheel and a chain matched structure or a connecting rod driving structure is adopted by a position conversion mechanism of a paper receiving machine unfolding wheel, the structure is complex, the space occupation is large, the assembly is complicated, the reaction speed is slow, the precision control is difficult to control, and in addition, the driving of the position conversion of the mechanism is rigid driving no matter the mechanism is adopted, no buffer exists when the accelerating movement and the decelerating brake stop, the pause and the pause are strong, and the integral controllability is influenced. In addition, the design of the unfolding wheel is not reasonable, the ordinary smooth roller or the rolling wheel is adopted, and for thicker and harder paper with high gram weight, the paper has better unfolding property and is not easy to deform and arch, so that the unfolding wheel can be suitable for use.

SUMMERY OF THE UTILITY MODEL

In view of the above disadvantages, an object of the present invention is to provide a system for rapidly switching the spreading wheels of a splicing machine, which can rapidly switch the spreading wheels of the splicing machine; the whole structure is scientific and reasonable, and the space is saved; the reaction is quick due to air pressure driving, and the flexible buffer effect is achieved; the air source device is matched with the air pressure proportional control valve for control, and the controllability is strong.

The utility model adopts the technical proposal that: a rapid switching system of a spreading wheel of a paper receiving machine is characterized by comprising a spreading wheel mechanism, a rapid switching driving mechanism and a rapid switching control mechanism; the unfolding wheel mechanism comprises a first unfolding wheel and a second unfolding wheel which are arranged, the first unfolding wheel and the second unfolding wheel are arranged through a left unfolding wheel mounting seat and a right unfolding wheel mounting seat which are positioned at two ends, and a paper penetrating space is arranged between the first unfolding wheel and the second unfolding wheel; the quick switching driving mechanism comprises a first rope wheel matching type rodless cylinder mechanism and a second rope wheel matching type rodless cylinder mechanism, the rope wheel matching type rodless cylinder mechanism comprises a cylinder shell, a sliding piston, a flexible pull rope, a left rope wheel, a right rope wheel, a left rope wheel mounting seat and a right rope wheel mounting seat, the cylinder shell is of a strip cylindrical structure, a left pull rope through hole and a left air inlet and outlet are arranged at the left end position, a right pull rope through hole and a right air inlet and outlet are arranged at the right end position, the sliding piston is movably arranged in the middle of the cylinder shell and divides a cavity in the cylinder shell into a left air pressure cavity and a right air pressure cavity, the left rope wheel mounting seat is fixedly arranged at the left end position of the cylinder shell, the right rope wheel mounting seat is fixedly arranged at the right end position of the cylinder shell, the left rope wheel is rotatably arranged on the left rope, the middle section of the flexible pull rope is fixedly arranged with the sliding piston, and the left and right sections respectively penetrate out of a left pull rope through hole and a right pull rope through hole of the cylinder shell and then are respectively wound and lapped on a left rope pulley and a right rope pulley so as to turn the direction, wherein the end parts of the left section and the right section of the flexible pull rope of the first group of rope pulley matching type rodless cylinder mechanism are respectively and fixedly connected with a left unfolding wheel mounting seat, and the end parts of the left section and the right section of the flexible pull rope of the second group of rope pulley matching type rodless cylinder mechanism are respectively and fixedly connected with a right unfolding wheel mounting seat; the quick switching control mechanism comprises an air source device, an air pipe and an air pressure proportional control valve, wherein the air pipe is sequentially connected with the air source device, the air pressure proportional control valve, a left air inlet and outlet of the first group of rope pulley matched type rodless cylinder mechanism, a right air inlet and outlet of the first group of rope pulley matched type rodless cylinder mechanism, a left air inlet and outlet of the second group of rope pulley matched type rodless cylinder mechanism and a right air inlet and outlet of the second group of rope pulley matched type rodless cylinder mechanism to form a control air circuit.

Further, the slip piston is including the sealed ear of elasticity adaptation that is located the slip adaptation portion in middle and is located both sides, just, the centre of a circle position of slip piston is provided with flexible stay cord fixed part.

Further, the elastically adaptable sealing ears are double-layered.

Further, the left rope wheel mounting seat is provided with a left air pipe interface corresponding to a left air inlet and outlet of the air cylinder shell, and the right rope wheel mounting seat is provided with a right air pipe interface corresponding to a right air inlet and outlet of the air cylinder shell.

Furthermore, a plurality of first expansion grooves are uniformly distributed and arranged on the surface of the first expansion wheel, the first expansion grooves are in a ' T ' shape and extend from the middle position of the surface of the first expansion wheel to both sides smoothly, a plurality of second expansion grooves are uniformly distributed and arranged on the surface of the second expansion wheel, and the second expansion grooves are in a ' Chinese ' L ' shape and extend from the middle position of the surface of the second expansion wheel to both sides smoothly.

Further, the cross section of the first expansion slot is shaped like ︶, and the two side edges of the first expansion slot are in smooth transition with the surface of the first expansion wheel; the depth of the first expansion groove becomes shallow gradually from the middle part to the two ends, and the depth of the first expansion groove is fused with the surface of the first expansion wheel at the end part; the depth of the middle part of the first expansion slot is 3-8 mm; the width of the first unfolding groove is 5-10 mm; the cross section of the second expansion slot is ︶ -shaped, and the edges of two sides of the second expansion slot are in smooth transition with the surface of the second expansion wheel; the depth of the second expansion groove becomes shallow gradually from the middle part to the two ends, and the depth of the second expansion groove is fused with the surface of the second expansion wheel at the end part; the depth of the middle part of the second expansion slot is 3-8 mm; the width of the second expansion groove is 5-10 mm.

Further, the cylinder housings of the first and second two groups of rope pulley matching type rodless cylinder mechanisms are arranged in parallel side by side, and the first unfolding wheel and the second unfolding wheel of the unfolding wheel mechanism are vertically arranged between the cylinder housings of the first and second two groups of rope pulley matching type rodless cylinder mechanisms.

Furthermore, the left and right unfolding wheel mounting seats are arranged in a sliding manner through left and right unfolding wheel supporting guide rails; the left and right unfolding wheel supporting guide rails are arranged in parallel with the cylinder shell of the first and second groups of rope wheel matched rodless cylinder mechanisms side by side.

Furthermore, a left air inlet and an air outlet of the first group of rope wheel matching type rodless cylinder mechanisms and a left air inlet and an air outlet of the second group of rope wheel matching type rodless cylinder mechanisms are connected in parallel into a branch of a control air circuit of the quick switching control mechanism, a right air inlet and an air outlet of the first group of rope wheel matching type rodless cylinder mechanisms and a right air inlet and an air outlet of the second group of rope wheel matching type rodless cylinder mechanisms are also connected in parallel into a branch of the control air circuit of the quick switching control mechanism, and therefore synchronous driving control of the first group of rope wheel matching type rodless cylinder mechanisms and the second group of rope wheel matching type rodless cylinder mechanisms is achieved.

The utility model has the advantages of it is following: the unfolding wheel mechanism, the quick switching driving mechanism and the quick switching control mechanism are matched with each other, so that the quick switching of the unfolding wheel of the paper receiving machine is realized; the rope pulley matching type rodless cylinder mechanism is adopted for air pressure driving, the whole structure is scientific and reasonable, the space is saved, the reaction is quick, and the flexible buffering effect is achieved; the air source device is matched with the air pressure proportional control valve for control, the controllability is strong, and systematic control can be carried out through the air pressure proportion.

The present invention will be further described with reference to the following description and embodiments in conjunction with the accompanying drawings.

Drawings

FIG. 1 is a schematic view of the overall structure of a rapid switching system of a spreading wheel of a paper receiving machine;

FIG. 2 is a partially enlarged schematic view of FIG. 1;

FIG. 3 is a schematic structural view of a rope pulley-fitted rodless cylinder mechanism;

FIG. 4 is a schematic structural view of the cylinder housing and the right sheave mounting seat hidden in FIG. 3;

FIG. 5 is a schematic view of a fitting structure of a flexible rope, a left rope pulley and a left rope pulley mounting seat;

FIG. 6 is a schematic view of a fitting structure of a flexible rope, a right rope pulley and a right rope pulley mounting seat;

FIG. 7 is a schematic view of the structure of the flexible pull cord engaged with the sliding piston;

FIG. 8 is a schematic view of the deployment wheel mechanism;

FIG. 9 is an enlarged partial schematic view of FIG. 8;

FIG. 10 is a schematic diagram of the gas path relationship of the fast switching control mechanism;

in the figure: a deployment wheel mechanism 1; a first deployment wheel 11; a second deployment wheel 12; a left deployment wheel mount 13; a right deployment wheel mount 14; a paper passing space 15; a first deployment chute 16; a second deployment chute 17; the fast switching driving mechanism 2; a cylinder housing 21; a sliding piston 22; a slide fitting part 221; a resiliently compliant sealing ear 222; a flexible cord securing portion 223; a flexible pull cord 23; a left sheave 24; a right sheave 25; a left sheave mount 26; a right sheave mount 27; a left tracheal interface 28; a right air tube interface 29.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.

It should be noted that, if directional indicators (such as … …, upper, lower, left, right, front, back, top, bottom, inner, outer, vertical, horizontal, longitudinal, counterclockwise, clockwise, circumferential, radial, axial) are involved in the embodiments of the present invention, the directional indicators are only used to explain the relative position, motion, etc. of the components in a specific posture (as shown in the drawings), and if the specific posture is changed, the directional indicators are changed accordingly.

In addition, if there is a description relating to "first" or "second", etc. in the embodiments of the present invention, the description of "first" or "second", etc. is for descriptive purposes only and is not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In addition, the technical solutions in the embodiments may be combined with each other, but it must be based on the realization of those skilled in the art, and when the technical solutions are contradictory or cannot be realized, the combination of the technical solutions should not be considered to exist, and is not within the protection scope of the present invention.

Referring to fig. 1 to 10, the embodiment first describes a method for controlling rapid switching of a spreading wheel of a splicer, which includes the following steps:

1) arranging an unfolding wheel mechanism 1, wherein the unfolding wheel mechanism 1 comprises a first unfolding wheel 11 and a second unfolding wheel 12 which are arranged in an array manner, the first unfolding wheel 11 and the second unfolding wheel 12 are arranged through a left unfolding wheel mounting seat 13 and a right unfolding wheel mounting seat 14 which are positioned at two ends, and a paper penetrating space 15 is arranged between the first unfolding wheel 11 and the second unfolding wheel 12; a quick switching driving mechanism 2 is arranged, the quick switching driving mechanism 2 comprises a first rope wheel matching type rodless cylinder mechanism and a second rope wheel matching type rodless cylinder mechanism, the rope wheel matching type rodless cylinder mechanism comprises a cylinder shell 21, a sliding piston 22, a flexible pull rope 23, a left rope wheel 24, a right rope wheel 25, a left rope wheel mounting seat 26 and a right rope wheel mounting seat 27, the cylinder shell 21 is of a long strip cylindrical structure, a left pull rope through hole is formed in the middle of the left end, a left air inlet and outlet port is formed in the side of the left end, a right pull rope through hole is formed in the middle of the right end, a right air inlet and outlet port is formed in the side of the right end, the sliding piston 22 is movably arranged in the middle of the cylinder shell 21 and divides a cavity in the cylinder shell 21 into a left air pressure cavity and a right air pressure cavity, the left rope wheel mounting seat 26 is fixedly arranged at the left end of the cylinder shell 21, the right rope wheel mounting seat 27, the left rope pulley 24 is rotatably arranged on the left rope pulley mounting seat 26, the right rope pulley 25 is rotatably arranged on the right rope pulley mounting seat 27, the middle section of the flexible pull rope 23 is fixedly arranged with the sliding piston 22, and the left and right sections respectively penetrate out of a left pull rope through hole and a right pull rope through hole of the cylinder shell 21 and then are respectively wound and lapped on the left rope pulley 24 and the right rope pulley 25 so as to turn the direction, wherein the left section end and the right section end of the flexible pull rope 23 of the first group of rope pulley matching type rodless cylinder mechanism are respectively and fixedly connected with the left unfolding wheel mounting seat 13, and the left section end and the right section end of the flexible pull rope 23 of the second group of rope pulley matching type rodless cylinder mechanism are respectively and fixedly connected with the right unfolding wheel mounting seat 14; a quick switching control mechanism is arranged, the quick switching control mechanism comprises an air source device, an air pipe and an air pressure proportional control valve, the air pipe is sequentially connected with the air source device, the air pressure proportional control valve, a left air inlet and outlet of a first group of rope pulley matched rodless cylinder mechanism, a right air inlet and outlet of the first group of rope pulley matched rodless cylinder mechanism, a left air inlet and outlet of a second group of rope pulley matched rodless cylinder mechanism and a right air inlet and outlet of the second group of rope pulley matched rodless cylinder mechanism, and a control air circuit is formed;

2) the air source device is matched with the air pressure proportional control valve to change the pressure directions of the left air pressure cavity and the right air pressure cavity of the air cylinder shell 21, the sliding piston 22 is driven to move leftwards or rightwards in the air cylinder shell 21, and then the flexible pull rope 23 pulls the unfolding wheel mechanism 1 to move leftwards or rightwards, so that the rapid transfer transposition of the unfolding wheel mechanism 1 is realized; in the process, the pressure difference between the left and right air pressure chambers of the air cylinder shell 21 is controlled by the air pressure proportional control valve, so that the buffer of the sliding piston 22 during the speed reduction braking and the position of the sliding piston 22 during the final braking and stopping are realized, and the buffer of the expanding wheel mechanism 1 during the speed reduction braking and the position of the expanding wheel mechanism 1 during the final braking and stopping are further realized.

The embodiment specifically describes a rapid switching system of a spreading wheel of a paper receiving machine, and the system can be used for implementing the rapid switching control method of the spreading wheel of the paper receiving machine. The rapid switching system of the spreading wheel of the paper receiving machine comprises a spreading wheel mechanism 1, a rapid switching driving mechanism 2 and a rapid switching control mechanism; the unfolding wheel mechanism 1 comprises a first unfolding wheel 11 and a second unfolding wheel 12 which are arranged in an array manner, the first unfolding wheel 11 and the second unfolding wheel 12 are arranged through a left unfolding wheel mounting seat 13 and a right unfolding wheel mounting seat 14 which are positioned at two ends, and a paper penetrating space 15 is arranged between the first unfolding wheel 11 and the second unfolding wheel 12; the quick switching driving mechanism 2 comprises a first rope pulley matching type rodless cylinder mechanism and a second rope pulley matching type rodless cylinder mechanism, the rope pulley matching type rodless cylinder mechanism comprises a cylinder shell 21, a sliding piston 22, a flexible pull rope 23, a left rope pulley 24, a right rope pulley 25, a left rope pulley mounting seat 26 and a right rope pulley mounting seat 27, the cylinder shell 21 is of a long strip cylindrical structure, a left pull rope through hole is formed in the middle of the left end, a left air inlet and outlet opening is formed in the side position of the left end, a right pull rope through hole is formed in the middle of the right end, a right air inlet and outlet opening is formed in the side position of the right end (it needs to be explained here that when the end of the cylinder shell and the rope pulley mounting seat are of a matching structure, namely, the rope pulley mounting seat is used as an end cover of the cylinder shell and also as the rope pulley mounting seat, an air pipe interface on the rope pulley mounting seat is equivalent to the air inlet and outlet opening of, the sliding piston 22 is movably arranged in the middle of the cylinder shell 21, the cavity in the cylinder shell 21 is divided into a left air pressure cavity and a right air pressure cavity, the left rope pulley mounting seat 26 is fixedly arranged at the left end of the cylinder shell 21, the right rope pulley mounting seat 27 is fixedly arranged at the right end of the cylinder shell 21, the left rope pulley 24 is rotatably arranged on the left rope pulley mounting seat 26, the right rope pulley 25 is rotatably arranged on the right rope pulley mounting seat 27, the middle section of the flexible rope 23 is fixedly arranged with the sliding piston 22, the left and right sections respectively penetrate through a left rope pulling through hole and a right rope pulling through hole of the cylinder shell 21 and then respectively lap around the left rope pulley 24 and the right rope pulley 25, thereby turning the direction, wherein the left section end and the right section end of the flexible rope 23 of the first group of rope pulley matching type rodless cylinder mechanism are respectively and fixedly connected with the left unfolding wheel mounting seat 13, the left section end and the right section end of the flexible pull rope 23 of the second group of rope wheel matching type rodless cylinder mechanism are respectively and fixedly connected with the right unfolding wheel mounting seat 14; the quick switching control mechanism comprises an air source device, an air pipe and an air pressure proportional control valve, wherein the air pipe is sequentially connected with the air source device, the air pressure proportional control valve, a left air inlet and outlet of the first group of rope pulley matched type rodless cylinder mechanism, a right air inlet and outlet of the first group of rope pulley matched type rodless cylinder mechanism, a left air inlet and outlet of the second group of rope pulley matched type rodless cylinder mechanism and a right air inlet and outlet of the second group of rope pulley matched type rodless cylinder mechanism to form a control air circuit.

Specifically, the sliding piston 22 includes a sliding fitting portion 221 located in the middle and elastically adaptive sealing ear portions 222 located on both sides, and a flexible rope fixing portion 223 is provided at a circle center position of the sliding piston 22. The resiliently compliant sealing ears 222 are double-layered. Generally, the elastic adaptive sealing lug part is made of flexible elastic rubber materials and has good adaptability, wear resistance, high temperature resistance and other properties so as to ensure the sealing property of the sliding piston in the moving process. And the double-deck setting can further promote the effect.

Specifically, the left sheave mounting base 26 is provided with a left air pipe joint 28 corresponding to a left air inlet and outlet port of the cylinder housing 21, and the right sheave mounting base 27 is provided with a right air pipe joint 29 corresponding to a right air inlet and outlet port of the cylinder housing 21.

Specifically, a plurality of first expansion grooves 16 are uniformly distributed and arranged on the surface of the first expansion wheel 11, the first expansion grooves 16 are in a "shape" and extend smoothly from the middle position of the surface of the first expansion wheel to both sides, a plurality of second expansion grooves 17 are uniformly distributed and arranged on the surface of the second expansion wheel 12, and the second expansion grooves 17 are in a "Chinese character" shape and extend smoothly from the middle position of the surface of the second expansion wheel to both sides. The cross section of the first expansion slot 16 is ︶ -shaped, and the two side edges of the first expansion slot 16 are in smooth transition with the surface of the first expansion wheel; the depth of the first expansion slot 16 gradually becomes shallow from the middle part to the two ends, and the depth is fused with the surface of the first expansion wheel at the end part; the depth of the middle part of the first expansion slot is 3-8 mm; the width of the first expansion slot 16 is 5-10 mm; the cross section of the second expansion slot 17 is ︶ -shaped, and the edges of the two sides of the second expansion slot 17 are in smooth transition with the surface of the second expansion wheel; the depth of the second expansion slot 17 becomes shallow gradually from the middle part to the two ends, and the depth is fused with the surface of the second expansion wheel at the end part; the depth of the middle part of the second expansion slot 17 is 3-8 mm; the width of the second expansion slot 17 is 5-10 mm. The first unfolding wheel is matched with the second unfolding wheel, the 'shaped first unfolding groove and the' shaped second unfolding groove are arranged on the surfaces of the first unfolding wheel and the second unfolding wheel, when the unfolding wheels rotate to convey paper, the 'shaped first unfolding groove and the' shaped second unfolding groove are matched with each other, adsorption and smoothing effects are achieved, the effects of flattening and unfolding low-weight paper from the middle to two sides can be achieved, arching of the paper is eliminated, and unfolding performance and smoothness of the paper in the conveying process are guaranteed.

Specifically, the cylinder housings 21 of the first and second two sets of rope pulley fitting type rodless cylinder mechanisms are arranged side by side in parallel, and the first unfolding wheel 11 and the second unfolding wheel 12 of the unfolding wheel mechanism 1 are vertically arranged between the cylinder housings 21 of the first and second two sets of rope pulley fitting type rodless cylinder mechanisms. More specifically, the left and right

deployment wheel mounts

13, 14 are slidably disposed through left and right deployment wheel support rails (not shown in the drawings) (since the flexible pull cord has no support capability, it is necessary to provide corresponding support rails for the left and right deployment wheel mounts so that the left and right deployment wheel mounts are supported and can slide); the left and right unfolding wheel supporting guide rails are respectively arranged in parallel with the cylinder shell/21 of the first and second groups of rope wheel matching type rodless cylinder mechanisms.

It should be noted here that the frame of the paper receiving machine is generally square, and the cylinder housings of the first and second two groups of rope sheave fitted rodless cylinder mechanisms are respectively disposed along two support bars that are disposed horizontally and balanced with each other. Correspondingly, the left and right unfolding wheel support guide rails are also arranged along two support bars which are balanced with each other.

Specifically, a left air inlet and outlet of the first group of rope pulley matched type rodless cylinder mechanism and a left air inlet and outlet of the second group of rope pulley matched type rodless cylinder mechanism are connected in parallel into a branch of a control air circuit of the quick switching control mechanism, a right air inlet and outlet of the first group of rope pulley matched type rodless cylinder mechanism and a right air inlet and outlet of the second group of rope pulley matched type rodless cylinder mechanism are also connected in parallel into a branch of the control air circuit of the quick switching control mechanism, and therefore synchronous driving control of the first group of rope pulley matched type rodless cylinder mechanism and the second group of rope pulley matched type rodless cylinder mechanism is achieved.

It should be noted that, in order to achieve synchronous driving of the first group of rope pulley matched rodless cylinder mechanism and the second group of rope pulley matched rodless cylinder mechanism, the air paths entering and exiting the left air inlet and the right air inlet of the first group of rope pulley matched rodless cylinder mechanism and the second group of rope pulley matched rodless cylinder mechanism must be synchronous, and therefore, the left air inlet and the left air inlet of the first group of rope pulley matched rodless cylinder mechanism and the left air inlet of the second group of rope pulley matched rodless cylinder mechanism need to be divided into two air paths and then connected to achieve the same air pressure air inlet or outlet. Similarly, the right air inlet and outlet of the first group of rope pulley matched rodless cylinder mechanism and the right air inlet and outlet of the second group of rope pulley matched rodless cylinder mechanism are also the same. That is to say, the first group of rope pulley matched type rodless cylinder mechanism and the second group of rope pulley matched type rodless cylinder mechanism are required to be controlled simultaneously instead of being controlled independently, so that the driving synchronism can be better ensured, and the displacement difference generated by the movable two groups of sliding pistons is avoided. The trachea forms air supply device, atmospheric pressure proportional control valve, first group rope sheave cooperation formula rodless cylinder mechanism and the rodless cylinder mechanism of second group rope sheave cooperation formula, and the overall arrangement of gas circuit is multiple various, and in addition, atmospheric pressure proportional control valve also can adopt one or more of integrated form, does not do here and does not describe in detail. The main purpose is to realize the air pressure control of a left air pressure cavity and a right air pressure cavity in the cylinder shell; when the sliding piston moves leftwards or rightwards, for example, when the sliding piston moves leftwards, the space of the left air pressure chamber is compressed to be smaller, and the air pressure is increased (naturally, the air pressure can be prevented from being increased or rapidly increased through air discharge, and the speed of the air pressure increase can be increased through air filling, which can be controlled by an air pressure proportional valve), the space of the right air pressure chamber is released to be larger, and the air pressure is reduced (naturally, the air pressure is prevented from being decreased or rapidly decreased through continuous air filling, which can be controlled by the air pressure proportional valve); in summary, the air pipe forms an air path to connect the air source device, the air pressure proportional control valve, the first group of rope pulley matching type rodless cylinder mechanism and the second group of rope pulley matching type rodless cylinder mechanism, so as to realize the moving driving control and the buffering control of the sliding piston in the cylinder shell, and further control the displacement and the buffering of the unfolding wheel mechanism through the flexible pull rope and the rope pulley. Therefore, the air source device and the air pressure proportional valve can be matched with a corresponding control program (such as a PLC program, and a person skilled in the art can write or adjust the corresponding program according to actual conditions to achieve a required motion process), the moving effect of the sliding piston and the speed and the buffer in the moving process are controlled, and then the quick switching effect of the unfolding wheel mechanism and the speed and the buffer in the moving process are controlled.

The utility model discloses be not limited to above-mentioned embodiment, adopt with the same or similar technical characteristics of the above-mentioned embodiment of the utility model, and other kind that obtain connect the quick switching system of paper machine expansion wheel, all are in the utility model discloses an within the protection scope.

Claims

1. A rapid switching system of a spreading wheel of a paper receiving machine is characterized by comprising a spreading wheel mechanism, a rapid switching driving mechanism and a rapid switching control mechanism; the unfolding wheel mechanism comprises a first unfolding wheel and a second unfolding wheel which are arranged, the first unfolding wheel and the second unfolding wheel are arranged through a left unfolding wheel mounting seat and a right unfolding wheel mounting seat which are positioned at two ends, and a paper penetrating space is arranged between the first unfolding wheel and the second unfolding wheel; the quick switching driving mechanism comprises a first rope wheel matching type rodless cylinder mechanism and a second rope wheel matching type rodless cylinder mechanism, the rope wheel matching type rodless cylinder mechanism comprises a cylinder shell, a sliding piston, a flexible pull rope, a left rope wheel, a right rope wheel, a left rope wheel mounting seat and a right rope wheel mounting seat, the cylinder shell is of a strip cylindrical structure, a left pull rope through hole is formed in the middle of the left end, a left air inlet and outlet port is formed in the side position of the left end, a right pull rope through hole and a right air inlet and outlet port are formed in the right end position of the cylinder shell, the sliding piston is movably arranged in the middle of the cylinder shell and divides a cavity in the cylinder shell into a left air pressure cavity and a right air pressure cavity, the left rope wheel mounting seat is fixedly arranged at the left end position of the cylinder shell, the right rope wheel mounting seat is fixedly arranged at the right end position of the cylinder shell, the left rope wheel, the middle section of the flexible pull rope is fixedly arranged with the sliding piston, and the left and right sections respectively penetrate out of a left pull rope through hole and a right pull rope through hole of the cylinder shell and then are respectively wound and lapped on a left rope pulley and a right rope pulley so as to turn the direction, wherein the end parts of the left section and the right section of the flexible pull rope of the first group of rope pulley matching type rodless cylinder mechanism are respectively and fixedly connected with a left unfolding wheel mounting seat, and the end parts of the left section and the right section of the flexible pull rope of the second group of rope pulley matching type rodless cylinder mechanism are respectively and fixedly connected with a right unfolding wheel mounting seat; the quick switching control mechanism comprises an air source device, an air pipe and an air pressure proportional control valve, wherein the air pipe is sequentially connected with the air source device, the air pressure proportional control valve, a left air inlet and outlet of the first group of rope pulley matched type rodless cylinder mechanism, a right air inlet and outlet of the first group of rope pulley matched type rodless cylinder mechanism, a left air inlet and outlet of the second group of rope pulley matched type rodless cylinder mechanism and a right air inlet and outlet of the second group of rope pulley matched type rodless cylinder mechanism to form a control air circuit.

2. The splicer deployment wheel rapid switching system of claim 1, wherein the sliding piston comprises a sliding adapter portion in the middle and elastically adaptable sealing ears on both sides, and wherein a flexible rope fixing portion is provided at a center of the sliding piston.

3. The splicer unwind wheel fast conversion system of claim 2, wherein said resiliently adaptable sealing ear is a double layer arrangement.

4. The splicer deployment wheel rapid switching system of claim 1, wherein the left sheave mounting block is provided with a left air pipe interface corresponding to a left air inlet and outlet port of the cylinder housing, and the right sheave mounting block is provided with a right air pipe interface corresponding to a right air inlet and outlet port of the cylinder housing.

5. The system for rapidly switching the spreading wheels of the paper receiving machine according to claim 1, wherein a plurality of first spreading grooves are uniformly distributed and arranged on the surface of the first spreading wheel, the first spreading grooves are in a shape of a ' and smoothly extend from the middle position of the surface of the first spreading wheel to two sides, a plurality of second spreading grooves are uniformly distributed and arranged on the surface of the second spreading wheel, and the second spreading grooves are in a shape of a ' profile ' and smoothly extend from the middle position of the surface of the second spreading wheel to two sides.

6. The splicer reel quick-change system of claim 5, wherein the cross section of the first reel is "︶", and the two side edges of the first reel are smoothly transited to the surface of the first reel; the depth of the first expansion groove becomes shallow gradually from the middle part to the two ends, and the depth of the first expansion groove is fused with the surface of the first expansion wheel at the end part; the depth of the middle part of the first expansion slot is 3-8 mm; the width of the first unfolding groove is 5-10 mm; the cross section of the second expansion slot is ︶ -shaped, and the edges of two sides of the second expansion slot are in smooth transition with the surface of the second expansion wheel; the depth of the second expansion groove becomes shallow gradually from the middle part to the two ends, and the depth of the second expansion groove is fused with the surface of the second expansion wheel at the end part; the depth of the middle part of the second expansion slot is 3-8 mm; the width of the second expansion groove is 5-10 mm.

7. The system for quickly switching the spreading wheels of the paper receiving machine according to claim 1, wherein the cylinder housings of the first and second two groups of rope pulley matching type rodless cylinder mechanisms are arranged side by side in parallel, and the first spreading wheel and the second spreading wheel of the spreading wheel mechanism are vertically arranged between the cylinder housings of the first and second two groups of rope pulley matching type rodless cylinder mechanisms.

8. The splicer deployment wheel rapid switching system of claim 7, wherein the left and right deployment wheel mounts are slidably disposed through left and right deployment wheel support rails; the left and right unfolding wheel supporting guide rails are arranged in parallel with the cylinder shell of the first and second groups of rope wheel matched rodless cylinder mechanisms side by side.

9. The system for quickly switching the unfolding wheels of the paper receiving machine as claimed in claim 7, wherein the left air inlet and outlet of the first group of rope pulley matched type rodless cylinder mechanisms and the left air inlet and outlet of the second group of rope pulley matched type rodless cylinder mechanisms are connected in parallel into a branch of a control air circuit of the quick switching control mechanism, and the right air inlet and outlet of the first group of rope pulley matched type rodless cylinder mechanisms and the right air inlet and outlet of the second group of rope pulley matched type rodless cylinder mechanisms are also connected in parallel into a branch of the control air circuit of the quick switching control mechanism, so as to realize synchronous driving control of the first group of rope pulley matched type rodless cylinder mechanisms and the second group of rope pulley matched type rodless cylinder mechanisms.