CN115547713A

CN115547713A - Pressing plate feeding and withdrawing device and electric pressing plate

Info

Publication number: CN115547713A
Application number: CN202211145260.9A
Authority: CN
Inventors: 田伟云; 陈钦文; 曾威; 文琪
Original assignee: Zhuhai Unitech Power Technology Co Ltd
Current assignee: Zhuhai Unitech Power Technology Co Ltd
Priority date: 2022-09-20
Filing date: 2022-09-20
Publication date: 2022-12-30

Abstract

The invention discloses a pressing plate switching device and an electric pressing plate, wherein the pressing plate switching device comprises a shell assembly, an electric control plate, a straight stroke piece, a first driving assembly, a rotary stroke piece and a second driving assembly, the straight stroke piece is connected with the shell assembly in a sliding mode, the first driving assembly is used for driving the straight stroke piece to slide linearly and reciprocally relative to the shell assembly, the rotary stroke piece is movably connected with the straight stroke piece through a first clutch structure, the second driving assembly comprises a rotary driving motor and a rotary driving wheel, the rotary driving wheel is in transmission contact with the rotary stroke piece to drive the rotary driving wheel to rotate relative to the shell assembly, a second clutch structure is arranged between the rotary driving wheel and a motor shaft of the rotary driving motor, and the second clutch structure is used for circumferentially positioning or circumferentially separating the motor shaft of the rotary driving motor from the rotary driving wheel. The technical scheme of the invention improves the convenience of the use of the electric pressure plate.

Description

Pressing plate feeding and returning device and electric pressing plate

Technical Field

The invention relates to the technical field of electrical equipment, in particular to a pressing plate switching device and an electric pressing plate using the same.

Background

The electric pressure plate is a very important electric secondary device, is generally installed in a loop of an electric power line system, and is used for switching on and off of an electric power line to realize on-off control of a power transmission line.

Electric pressure plate with remote control electric operation function, structural usually by the clamp plate throw move back the device and the clamp plate main part constitutes, the clamp plate main part can throw by the clamp plate and move back the device and carry out automatic drive in order to throw and move back between the position, in the relevant design, to electric pressure plate with remote control electric operation function, when needs carry out manual operation, because the motor does not go up the electricity, during manual operation, the produced resistance of motor all need be overcome in whole process, consequently hardly pull the clamp plate and carry out linear motion or rotation, and because the operation is difficult, lead to exerting oneself excessively easily in the operation process, perhaps damage its inside transmission structure when serious, influence normal operating.

Disclosure of Invention

The invention mainly aims to provide a pressing plate switching device, aiming at improving the convenience of manual operation of an electric pressing plate.

In order to achieve the above object, the present invention provides an electric platen, comprising:

the electronic control board is arranged in the shell assembly;

the straight stroke piece is connected with the shell assembly in a sliding manner;

the first driving assembly is arranged on the shell assembly, is electrically connected with the electric control board and is used for driving the straight stroke piece to linearly and reciprocally slide relative to the shell assembly;

the rotating stroke piece is rotatably arranged on the shell assembly and is provided with a mounting part which is fixedly connected with a handle assembly on the electric pressure plate, the rotating stroke piece is movably connected with the straight stroke piece through a first clutch structure, and the first clutch structure is configured to enable the rotating stroke piece and the straight stroke piece to relatively rotate and relatively linearly slide in a set stroke; and

the second driving assembly is mounted on the shell assembly and electrically connected with the electric control board, the second driving assembly comprises a rotary driving motor and a rotary driving wheel, the rotary driving wheel is in transmission contact with the rotary stroke piece to drive the rotary stroke piece to rotate relative to the shell assembly, and a second clutch structure is arranged between the rotary driving wheel and a motor shaft of the rotary driving motor and used for circumferentially positioning or circumferentially separating the motor shaft of the rotary driving motor and the rotary driving wheel.

In one embodiment of the invention, the straight stroke piece comprises a connecting part and a driving part which are connected, the first driving component is in transmission contact with the driving part to drive the straight stroke piece to linearly and reciprocally slide, one end of the rotating stroke piece, which is far away from the mounting part, is concavely provided with a slot, and the connecting part extends into the slot;

first separation and reunion structure is including fixing locating pin on the connecting portion and being formed at elongated hole on the rotation stroke piece, elongated hole with the slot intercommunication, locating pin part stretches into elongated hole is downthehole, just the locating pin is in the length direction and the width direction in elongated hole all have the removal space.

In an embodiment of the present invention, the straight stroke part includes a connecting part and a driving part, the connecting part is movably connected with the rotary stroke part, the driving part includes an elongated driving plate, and a driving rack extending in the length direction of the driving plate is formed on the driving plate;

the first driving assembly comprises a slippage driving motor and a slippage driving gear, and the slippage driving gear is meshed with the driving rack.

In an embodiment of the present invention, the driving portion further includes a pressing plate, and the pressing plate and the driving plate are arranged at an interval;

the electric control plate is provided with a travel switch, and the travel switch is positioned on the sliding path of the straight travel piece and is triggered by the pressing plate in the linear moving process of the straight travel piece.

In an embodiment of the present invention, the housing assembly includes a box body and a bracket installed in the box body, and the electric control board is fixed to the bracket;

the support forms a limiting groove, the drive plate is contained in the limiting groove, the drive rack is located on one side, facing the pressing plate, of the drive plate, and one side, departing from the pressing plate, of the drive plate slides and abuts against the groove wall of the limiting groove.

In an embodiment of the present invention, the length of the pressing plate is smaller than the length of the driving plate.

In an embodiment of the present invention, the second clutch structure includes a clutch member and a contact block, the clutch member is fixed on a motor shaft of the rotary driving motor, a driving block is disposed on the clutch member, the contact block is formed in an inner cavity of the rotary driving wheel, the driving block and the contact block are at least partially overlapped in the same rotation plane, and during rotation of the clutch member, the driving block and the contact block are circumferentially positioned or circumferentially separated;

the pressing plate throwing and withdrawing device is provided with a manual mode for directly operating the handle assembly to switch between a throwing position and a withdrawing position, in the manual mode, the handle assembly drives the rotary stroke piece to rotate relative to the shell assembly, and the driving block and the contact block are in a circumferential separation state.

In an embodiment of the present invention, a transmission portion in transmission contact with the rotary driving wheel is formed outside the rotary stroke member, and the transmission portion includes a plurality of straight teeth extending in an axial direction of the rotary stroke member, and the plurality of straight teeth are arranged at intervals in a circumferential direction of the rotary stroke member;

the rotary driving wheel is formed into a driving gear and is constantly meshed with a transmission part on the rotary stroke piece.

In an embodiment of the invention, the rotary stroke piece is further provided with a limit convex part, the electric control board is provided with a microswitch, and the limit convex part triggers the microswitch when the handle assembly is in a throwing position.

In an embodiment of the present invention, the rotating stroke member is further provided with a rotation blocking convex portion, and the housing assembly is further provided with a stopping portion, and the stopping portion is used for being abutted against and matched with the rotation blocking convex portion, so as to limit a rotation angle of the rotating driving motor when the handle assembly is in a retreating state.

In an embodiment of the present invention, the rotating stroke piece is further provided with two positioning grooves arranged at intervals in the circumferential direction of the rotating stroke piece, the housing assembly is further provided with a positioning piece, and the positioning piece is selectively clamped into one of the two positioning grooves in the rotating process of the rotating stroke piece to generate a rotation arrival prompt.

The invention also provides an electric pressure plate, which comprises a pressure plate body and the pressure plate throwing and withdrawing device, wherein the pressure plate body comprises a base, a handle component and a conductive component, the base is connected with the shell component, the conductive component is fixed on the base, and the handle component movably penetrates through the base and extends into the shell component to be fixedly connected with the rotating stroke piece.

In an embodiment of the invention, the handle assembly and the rotary stroke piece are clamped and fixed, and the base and the shell assembly are clamped and fixed.

According to the technical scheme, the straight stroke piece and the rotating stroke piece in the pressing plate feeding and withdrawing device are movably connected, a first clutch structure is formed between the straight stroke piece and the rotating stroke piece, the rotating stroke piece and the straight stroke piece can rotate relative to each other through the first clutch structure, the rotating stroke piece and the straight stroke piece can slide relatively and linearly within a set distance, a second clutch structure is further formed between the second driving assembly and the rotating stroke piece, and the second clutch structure is used for circumferentially positioning or circumferentially separating a motor shaft of a rotating driving motor and a rotating driving wheel. In the use, when the clamp plate is thrown and moves back the device and is in power-on state, first drive assembly can support after the idle stroke distance that straight stroke piece rectilinear motion and slide the settlement and rotate the stroke piece and carry out the rectilinear sliding, it then can further drive handle subassembly and follow the hole of throwing the position or moving back and withdraw from to rotate the stroke piece, and second drive assembly then rotates the stroke piece through rotary driving motor and rotary driving wheel drive and rotates, the cooperation of two processes can realize handle subassembly and throw and move back and switch between the position, thereby satisfy electric power clamp plate remote operation's intelligent control demand, high durability and convenient use.

When the pressing plate switching device is in a power-off state in a special situation, and an operator directly and manually operates a handle assembly in the electric pressing plate to switch between a position throwing operation and a position withdrawing operation, due to the design of the first clutch structure, in the process of pulling the handle assembly by the operator, the straight stroke piece can relatively linearly slide for setting a distance and further the straight stroke piece cannot be displaced, so that the action of the first driving assembly cannot be caused, and in the rotating process of operating the rotary handle assembly by the operator, due to the arrangement of the first clutch structure, the rotary stroke piece and the straight stroke piece can relatively rotate, so that the straight stroke piece cannot be rotated in the process, and due to the arrangement of the second clutch structure between the second driving assembly and the rotary driving wheel, the rotary driving motor in the second driving assembly cannot be linked with each other due to the rotation of the handle assembly, in this way, the whole manual operation process can avoid directly causing the linkage of the first driving assembly and the second driving assembly, so that the resistance generated in the operation process can be greatly reduced, and the use is more convenient.

Drawings

In order to more clearly illustrate the embodiments or technical solutions of the present invention, the drawings used in the embodiments or technical solutions of the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the structures shown in the drawings without creative efforts.

FIG. 1 is an exploded view of an embodiment of an electric platen according to the present invention;

FIG. 2 is a schematic view of a portion of the electrical platen of FIG. 1;

FIG. 3 is a schematic cross-sectional view of the electrical platen of FIG. 1;

FIG. 4 is a schematic perspective view of the straight stroke member of the electric platen of FIG. 1;

FIG. 5 is a perspective view of a rotary stroke element in the electric platen of FIG. 1;

FIG. 6 is a schematic perspective view of the bracket in the electric platen of FIG. 1;

fig. 7 is a schematic perspective view of a base in the electric platen of fig. 1.

100. A pressing plate feeding and withdrawing device; 110. a housing assembly; 111. a box body; 112. an upper box cover; 113. a lower box cover; 114. a support; 115. a limiting groove; 116. a stopper portion; 118. an insertion hole; 120. a first drive assembly; 121. a slip drive motor; 122. a sliding driving gear; 130. a second drive assembly; 131. a rotation driving motor; 132. rotating the drive wheel; 1321. a contact block; 133. a clutch member; 1331. a drive block; 140. a straight stroke member; 141. a connecting portion; 142. a drive section; 143. a substrate; 144. a drive plate; 145. a driving rack; 146. pressing the plate; 147. positioning pins; 150. rotating the stroke piece; 151. a slot; 152. a long hole; 153. a transmission section; 154. a limit convex part; 155. an installation part; 160. an electric control board; 161. a travel switch; 162. a microswitch; 200. a platen body; 210. a base; 220. a substrate; 221. throwing a state positioning hole; 222. withdrawing the state positioning hole; 223. a guide groove; 230. mounting the cylinder; 240. a handle assembly; 290. a conductive component; 300. and (6) electrically pressing the plate.

The implementation, functional features and advantages of the objects of the present invention will be further explained with reference to the accompanying drawings.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be obtained by a person skilled in the art without inventive step based on the embodiments of the present invention, are within the scope of protection of the present invention.

In the present invention, unless otherwise expressly stated or limited, the terms "connected," "secured," and the like are to be construed broadly, and for example, "secured" may be a fixed connection, a removable connection, or an integral part; can be mechanically or electrically connected; they may be directly connected or indirectly connected through intervening media, or they may be interconnected within two elements or in a relationship where two elements interact with each other unless otherwise specifically limited. The specific meanings of the above terms in the present invention can be understood according to specific situations by those of ordinary skill in the art.

In addition, descriptions such as "first", "second", etc. in the present invention are used for descriptive purposes only and are 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, technical solutions between various embodiments may be combined with each other, but must be realized by a person skilled in the art, and when the technical solutions are contradictory or cannot be realized, such a combination should not be considered to exist, and is not within the protection scope of the present invention.

The present invention provides an electric platen 300.

Referring to fig. 1 to 3, in the embodiment of the present invention, the electric platen 300 includes a platen engaging and disengaging apparatus 100 and a platen main body 200. The pressing plate main body 200 can realize the switching-off and switching-on operations of a power line, and realize the on-off control of the power transmission line. The pressing plate putting and withdrawing device 100 can realize the switching between the putting and withdrawing of the pressing plate main body 200 remotely in an electromechanical mode. In a conventional design, when the electric pressure plate 300 is not powered on, the motor in the pressure plate moving device 100 is directly linked when the pressure plate main body 200 is manually operated, so that the resistance received when the pressure plate main body 200 is manually operated is large, and the required force is large during operation. In this case, if the control is not good and the force is applied excessively during the force application process, the transmission structure inside the pressing plate retracting device 100 may be damaged, and the subsequent normal operation may not be performed.

Therefore, the technical scheme of the invention also focuses on innovatively modifying the pressing plate feeding and withdrawing device 100 in the electric pressing plate 300, and provides a novel pressing plate feeding and withdrawing device 100, which can effectively overcome the problems. So that the operation is convenient when the pressing plate main body 200 is manually operated.

Before understanding how the platen entry and exit device 100 of the present invention solves this problem, we first understand the structure of the platen main body 200 to understand its operation principle.

Referring to fig. 1, 2 and 7, the platen body 200 includes a base 210, a pull assembly 240 and a conductive assembly 290. The base 210 includes a base plate 220 and a mounting tube 230 connected to one side of the base plate 220, wherein the base plate 220 and the mounting tube 230 may be an integral structure, or fixed together by welding, or the like, or the base plate 220 and the mounting tube 230 may be separate structures, and the base plate and the mounting tube are fixed by screwing, clamping, or the like. In one form, the conductive member 290 includes two sets of conductive posts, fastening nuts and crimping screws respectively fixed to the two ends of the substrate 220. The conductive assembly 290 is installed on one side of the substrate 220 facing the platen retraction device 100, the substrate 220 is further provided with a feeding state positioning hole 221 and a retraction state positioning hole 222, wherein the feeding state positioning hole 221 is two through holes located at a center line position of the substrate 220, two side portions of the substrate 220 are provided with outward extending bosses (not labeled), the retraction state positioning hole 222 is a through hole located on the bosses, two side portions of an outer surface of the substrate 220 are provided with a left guide groove 223 and a right guide groove 223, the guide grooves 223 are oblique sliding groove structures inclined from a feeding state positioning hole 221 direction to a retraction state positioning hole 222 direction, and the guide grooves 223 are used for guiding the handle assembly 240 to enter retraction from the feeding position.

Under the action of external force, the handle assembly 240 moves relative to the base 210, so that the handle assembly 240 is switched between a throwing-state working position and a withdrawing-state working position, that is, the positions of the throwing-state positioning hole 221 and the withdrawing-state positioning hole 222 are switched, when the throwing-state working position is reached, the conductive elements in the handle assembly 240 penetrate through the throwing-state positioning hole 221, the two groups of conductive assemblies 290 are in conduction with the conductive elements in the handle assembly 240, and when the withdrawing-state working position is reached, the conductive elements in the handle assembly 240 penetrate through the withdrawing-state positioning hole 222, and the two groups of conductive assemblies 290 are disconnected with the conductive elements in the handle assembly 240, wherein the conductive elements in the handle assembly 240 may be conductive copper column structures.

With the structure of the platen main body 200 understood, we next describe a specific embodiment of the platen retraction device 100.

Referring to fig. 1 and 2 again, in the embodiment of the present invention, the pressing plate retracting device 100 includes a housing assembly 110, an electric control plate 160, a straight stroke member 140, a rotating stroke member 150, a first driving assembly 120, and a second driving assembly 130.

The electric control plate 160 is disposed in the housing assembly 110, the linear motion member 140 is slidably connected to the housing assembly 110, and the first driving assembly 120 is mounted on the housing assembly 110 and electrically connected to the electric control plate 160 for driving the linear motion member 140 to linearly reciprocate relative to the housing assembly 110.

The rotary stroke member 150 is rotatably mounted to the housing assembly 110 and has a mounting portion 155 (see fig. 5) for fixedly connecting with the handle assembly 240 on the electric pressure plate 300, the rotary stroke member 150 is movably connected with the straight stroke member 140 through a first clutch structure, the first clutch structure is configured to allow relative rotation between the rotary stroke member 150 and the straight stroke member 140, and the rotary stroke member 150 and the straight stroke member 140 can slide relatively linearly within a set stroke.

The second driving assembly 130 is mounted on the housing assembly 110 and electrically connected to the electronic control board 160, the second driving assembly 130 includes a rotation driving motor 131 and a rotation driving wheel 132, the rotation driving wheel 132 is in transmission contact with the rotation stroke member 150 to drive the rotation driving wheel to rotate relative to the housing assembly 110, and a second clutch structure is disposed between the rotation driving wheel 132 and a motor shaft of the rotation driving motor 131, and is used for circumferentially positioning or circumferentially separating the motor shaft of the rotation driving motor 131 and the rotation driving wheel 132. In the present embodiment, in the circumferential positioning state, there is a force transmission between the motor shaft of the rotation driving motor 131 and the rotation driving wheel 132 so that the two can be interlocked. In the circumferentially separated state, however, no force is transmitted between the motor shaft of the rotary drive motor 131 and the rotary drive wheel 132, and the two cannot be linked.

According to the technical scheme, the straight stroke piece 140 and the rotary stroke piece 150 in the pressing plate feeding and withdrawing device 100 are movably connected, a first clutch structure is formed between the straight stroke piece 140 and the rotary stroke piece 150, the rotary stroke piece 150 and the straight stroke piece 140 can rotate relatively through the first clutch structure, the rotary stroke piece 150 and the straight stroke piece 140 can slide relatively in a set stroke, a second clutch structure is formed between the second driving assembly 130 and the rotary stroke piece 150, and the second clutch structure is used for circumferentially positioning or circumferentially separating a motor shaft of the rotary driving motor 131 and the rotary driving wheel 132. In the using process, when the pressing plate feeding and withdrawing device 100 is in the power-on state, the first driving component 120 linearly moves through the straight stroke piece 140 and slides for a set idle stroke distance and then can abut against the rotating stroke piece 150 to linearly slide, the rotating stroke piece 150 can further drive the handle component 240 to withdraw from a hole for feeding or withdrawing, the second driving component 130 drives the rotating stroke piece 150 to rotate through the rotating driving motor 131 and the rotating driving wheel 132, the handle component 240 can be switched between feeding and withdrawing through the matching of the two processes, so that the intelligent control requirement of the remote operation of the electric pressing plate 300 is met, and the use is convenient.

When the pressing plate moving-in and moving-out device 100 is in a power-off state, and an operator directly and manually operates the handle assembly 240 in the electric pressing plate 300 to switch between the moving position and the moving position, due to the design of the first clutch structure, in the process of pulling the handle assembly 240 by the operator, the linear stroke member 140 cannot be displaced because the rotary stroke member 150 and the linear stroke member 140 can slide relatively and linearly for a set distance, and therefore the action of the first driving assembly 120 cannot be caused, and in the rotating process of operating the rotary handle assembly 240 by the operator, because of the arrangement of the first clutch structure, the rotary stroke member 150 and the linear stroke member 140 can rotate relatively, the linear stroke member 140 cannot be caused to rotate in the process, and because the second clutch structure is further arranged between the second driving assembly 130 and the rotary driving wheel 132, the rotation of the handle assembly 240 cannot cause the linkage of the rotary driving motor 131 in the second driving assembly 130, so that the whole manual operation process can avoid directly causing the linkage of the first driving assembly 120 and the second driving assembly 130, and thus the resistance generated in the operation process can be reduced.

Referring to fig. 1, fig. 2 and fig. 5, in an embodiment, the straight stroke element 140 includes a connecting portion 141 and a driving portion 142 connected to each other, the first driving component 120 is in transmission contact with the driving portion 142 to drive the straight stroke element 140 to linearly and reciprocally slide, a slot 151 is concavely formed at an end of the rotary stroke element 150 away from the mounting portion 155, and the connecting portion 141 extends into the slot 151. The first clutch structure includes a positioning pin 147 fixed to the connecting portion 141 and an elongated hole 152 formed in the rotary stroke member 150, the elongated hole 152 communicates with the insertion groove 151, the positioning pin 147 partially extends into the elongated hole 152, and the positioning pin 147 has a moving space in both a length direction and a width direction of the elongated hole 152.

The connecting portion 141 and the driving portion 142 of the present embodiment may be fixed integrally by injection molding, welding, or the like, and of course, the connecting portion 141 and the driving portion 142 may also be fixed together by a detachable connection such as a screw buckle. The connecting portion 141 is provided with a pin hole, and the positioning pin 147 is fixed in the pin hole. In this arrangement, during the assembly process, the connecting portion 141 is inserted into the slot 151 and exposed through the elongated hole 152, and then the positioning pin 147 is inserted into the pin hole, which is convenient for assembly.

Wherein the connecting portion 141 is rotatable in the insertion groove 151, and the elongated hole 152 has a track-like contour shape and extends in a length direction of the rotational stroke member 150. The diameter of the positioning pin 147 is smaller than the width of the elongated hole 152, and the specific design requirement is determined according to the actual use requirement. For example, under the manual operation, if the handle assembly 240 in the pressing plate main body 200 is switched between the projecting position and the retreating position, and the set rotation angle is 45 degrees, during the manual operation, the handle assembly 240 is directly rotated by 45 degrees under the action of external force, during this process, the handle assembly 240 can drive the rotating stroke piece 150 to rotate together, so that the rotating stroke piece 150 rotates relative to the straight stroke piece 140, and the positioning pin 147 is caused to move in the width direction of the elongated hole 152, the width dimension of the elongated hole 152 needs to meet the requirement that during this process, the hole wall of the elongated hole 152 does not interfere with the positioning pin 147 to drive the straight stroke piece 140 to rotate together.

The fact that the rotating stroke piece 150 and the straight stroke piece 140 can slide linearly relative to each other for a set distance means that in the process of switching between the throwing position and the withdrawing position of the manual driving handle assembly 240, the handle assembly 240 drives the rotating stroke piece 150 to perform linear reciprocating motion, in the process, the positioning pin 147 can also perform linear reciprocating motion relative to the rotating stroke piece 150, the length direction of the elongated hole 152 is satisfied, and in the process, the hole wall of the elongated hole 152 cannot interfere with the positioning pin 147, and meanwhile, the straight stroke piece 140 can linearly move together. Through the arrangement, the scheme of the invention can not directly cause the driving structure in the pressing plate feeding and withdrawing device 100 to move together when the electric pressing plate 300 is manually operated, so that the generated resistance is relatively small, and the operation is relatively simple.

It is understood that the first clutch structure formed between the straight stroke member 140 and the rotary stroke member 150 according to the present invention may be formed in various forms other than the above form of fitting the positioning pin 147 and the elongated hole 152. For example, a rib may be formed on the connecting portion 141, and two blocking ribs arranged at intervals are provided in the slot 151 of the rotary stroke piece 150, the rib is located between the two blocking ribs, and then the stroke defined by the two blocking ribs meets the requirement of setting the length dimension of the elongated hole 152 in the above scheme. In other arrangements, the connecting portion 141 may be sleeved outside the rotary stroke member 150, and the positions of the two blocking ribs and the protruding ribs may be interchanged between the straight stroke member 140 and the rotary stroke member 150. The spherical coupling portion 141 may be inserted into the insertion groove 151 of the rotary stroke member 150, and the rotary stroke member 150 may be provided with a stopper structure for stopping both ends of the spherical coupling portion 141 in the linear sliding direction.

Referring to fig. 1, 3 and 4, in one configuration, the driving portion 142 includes an elongated driving plate 144, and a driving rack 145 extending in a longitudinal direction of the driving plate 144 is formed on the driving plate 144; the first drive assembly 120 includes a glide drive motor 121 and a glide drive gear 122, the glide drive gear 122 being in meshing engagement with a drive rack 145.

In the embodiment, the linear motion member 140 is driven to linearly reciprocate in a motor and gear transmission manner, so that the whole pressing plate retreating device 100 has the characteristics of compact structure, sensitive response and stable operation. During the operation, the sliding driving motor 121 drives the driving plate 144 to perform a linear reciprocating motion through the cooperation of the sliding driving gear 122 and the driving rack 145, and during the operation, the sliding driving motor 121 can continuously operate, and the distance of the movement of the positioning pin 147 is the sum of the distance required for overcoming the idle stroke in the elongated hole 152 and driving the handle assembly 240 to completely withdraw from the throwing-state positioning hole 221 or the withdrawing-state positioning hole 222.

It can be understood that, in the case that the linear motion member 140 is driven by a motor to reciprocate, the transmission manner between the sliding driving motor 121 and the linear motion member 140 may be various forms such as a sprocket transmission, a synchronous belt transmission, a link transmission, and the like, besides the above form of gear transmission, and the present application is not limited thereto.

In addition, the first driving assembly 120 of the present application may be driven by other structures such as an air cylinder, besides the motor as a power source.

In this embodiment, the driving portion 142 further includes a pressing plate 146, and the pressing plate 146 and the driving plate 144 are disposed at an interval. The driving portion 142 of the present embodiment includes a base 143 fixedly connected to the connecting portion 141, the base 143 is a block-shaped structure extending radially at an end of the connecting portion 141, and the driving plate 144 and the pressing plate 146 are respectively fixed at two ends of the base 143, such that the driving plate 144 and the pressing plate 146 are oppositely disposed at an interval.

Further, the housing assembly 110 includes a box 111 and a bracket 114 installed in the box 111, and the electronic control board 160 is fixed to the bracket 114; the bracket 114 is provided with a limit groove 115, the driving plate 144 is accommodated in the limit groove 115, the driving rack 145 is located on one side of the driving plate 144 facing the pressing plate 146, and one side of the driving plate 144 departing from the pressing plate 146 slides and abuts against the groove wall of the limit groove 115.

The limiting groove 115 limits and guides the driving plate 144 in the sliding process of the driving plate 144, the limiting groove 115 is formed to be a relatively small notch corresponding to the position of the driving plate 144, and an opening corresponding to one side of the driving rack 145 is large so that the sliding driving gear 122 can extend into the limiting groove. With such an arrangement, the strip-shaped driving plate 144 can be prevented from tilting due to the structural characteristics by the limitation of the limiting groove 115, so that the strip-shaped driving plate can be ensured to be in effective contact with the sliding driving gear 122. Moreover, in the operation process, because the effect of clamping the driving plate 144 is formed between the groove walls of the sliding driving gear 122 and the limiting groove 115, the phenomenon that the driving plate 144 is deformed due to the rotation force of the sliding driving gear 122 to cause poor contact can be avoided, and the stability of the whole structure in the operation process can be higher.

A travel switch 161 is installed on the electric control plate 160, and the travel switch 161 is located on the sliding path of the straight stroke part 140 and is triggered by the pressing plate 146 during the linear movement of the straight stroke part 140. The travel switches 161 of the present embodiment may be provided in plurality, and the travel switches 161 are configured to be sequentially triggered during the sliding process of the straight travel member 140, so as to generate a detection signal, so as to accurately determine the position of the straight travel member 140, ensure that the handle assembly 240 moves in place, and also accurately determine the action direction of the straight travel member 140 according to the response sequence of the travel switches 161.

In this embodiment, the length of the pressing plate 146 is smaller than the length of the driving plate 144. Through such a configuration, a compact structure can be achieved, and the pressing plate 146 is prevented from occupying too much space and affecting the installation of the electric control plate 160.

Referring to fig. 1, fig. 2, and fig. 5 in combination, in an embodiment, the second clutch structure includes a clutch member 133 and a contact block 1321, the clutch member 133 is fixed on a motor shaft of the rotary driving motor 131, a driving block 1331 is disposed on the clutch member 133, the contact block 1321 is formed in an inner cavity of the rotary driving wheel 132, and the driving block 1331 and the contact block 1321 are circumferentially positioned or circumferentially separated during rotation of the clutch member 133.

In a manual mode in which the pressing plate ejecting and withdrawing device 100 directly operates the handle assembly 240 to switch between the ejecting position and the withdrawing position, the handle assembly 240 rotates the rotary stroke member 150 relative to the housing assembly 110, and the driving block 1331 is circumferentially separated from the contact block 1321.

In this embodiment, the clutch 133 is substantially a cylinder, the clutch 133 and the motor shaft of the rotary driving motor 131 can be connected by a spline on the cylinder, the driving blocks 1331 protrude out of the outer circumferential surface of the cylinder, and two driving blocks 1331 are arranged in the radial direction of the clutch 133, and the two driving blocks 1331 can be distributed at an angle of 180 degrees. The rotary driving wheel 132 is also substantially a hollow cylinder structure, which is sleeved on the motor shaft of the rotary driving motor 131 and the outside of the rotary driving wheel 132, a driving part 142 is provided on the outer circumferential surface of the rotary driving wheel 132, and two contact blocks 1321 are radially protruded on the cavity wall of the inner cavity thereof, wherein, two contact blocks 1321 are also radially provided, and the two contact blocks 1321 may also be distributed at an angle of 180 degrees. When installed, the two drive blocks 1331 on the clutch member 133 and the two contact blocks 1321 on the rotary drive wheel 132 are both in the same plane of rotation, although they could be at least partially in the same plane of rotation. Thus, during operation, the clutch member 133 is rotated by the motor shaft of the rotary driving motor 131, the two driving blocks 1331 thereon will be blocked by the two contact blocks 1321 on the rotary driving wheel 132, and the circumferential positioning state is realized.

When the handle assembly 240 is manually operated to rotate, the rotation driving wheel 132 rotates relative to the clutch member 133 when being driven by the handle assembly 240 to rotate, so that the driving block 1331 and the contact block 1321 are separated from each other to be in a circumferential separation state, and thus, when the rotation angle set by switching the handle assembly 240 between the throwing position and the withdrawing position is smaller than the rotation angle required by the contact of the driving block 1331 and the contact block 1321 again, the motor shaft of the sliding driving motor 121 cannot be caused to rotate through the clutch member 133 in the whole process, so that when the handle assembly 240 is pulled, the resistance is smaller, and the operation is easier. And, above structural arrangement, in the drive process, the atress is even, and the operation is comparatively stable.

In the above process, the circumferential positioning state specifically refers to a state in which the driving block 1331 and the contact block 1321 generate an interaction force and abut against each other, and such a state may cause the motor shafts of the clutch member 133, the rotary driving wheel 132, and the rotary driving motor 131 to be linked. In the powered state, initially, the driving block 1331 and the contact block 1321 may be in a state of contact with each other, the contact block 1321 directly abuts against the driving block 1331, or the contact block 1321 and the driving block 1331 may be in a state of separation from each other, and after the motor shaft of the rotary driving motor 131 rotates by a certain angle, the two are brought into contact against the idle stroke between the driving block 1331 and the contact block 1321. The circumferentially separated state specifically refers to a state in which no interaction force is generated between the driving block 1331 and the contact block 1321 and the driving block 1331 and the contact block 1321 are not abutted against each other.

In one embodiment, the outside of the rotary stroke member 150 is formed with a transmission part 153 in transmission contact with the rotary drive wheel 132, the transmission part 153 includes a plurality of straight teeth extending in the axial direction of the rotary stroke member 150, and the plurality of straight teeth are spaced apart in the circumferential direction of the rotary stroke member 150; the rotary drive wheel 132 is formed as a drive gear and is in constant mesh with a transmission 153 on the rotary stroke element 150. In the embodiment, the rotary driving wheel 132 and the rotary stroke piece 150 are both in tooth transmission and form a worm and gear structure, so that the operation is more accurate and stable in the driving process, and the whole occupied space is smaller.

It is understood that in other configurations, the transmission between the driving part 142 and the rotary stroke element 150 may be a surface friction synchronous wheel transmission, a chain wheel transmission, or the like.

Referring to fig. 5, the rotating stroke piece 150 is further provided with a limit protrusion 154, the electric control board 160 is provided with a micro switch 162, and the limit protrusion 154 triggers the micro switch 162 when the handle assembly 240 is in the projecting position. The electric power pressing plate 300 can be further provided with a light prompt to display light when the corresponding handle assembly 240 is in the projection position, so that whether the electric power pressing plate 300 is in the projection position can be intuitively known, and the electric power pressing plate is safer in use.

Referring to fig. 6, the bracket 114 of the housing assembly 110 is further provided with a stopping portion 116, and the rotating stroke member 150 is further provided with a rotation blocking protrusion (not shown) abutting against and cooperating with the stopping portion 116, and the stopping portion 116 abuts against and cooperates with the rotation blocking protrusion, so as to limit the rotation angle of the rotation driving motor 131 when the handle assembly 240 is in the retreating position.

The process of switching the handle assembly 240 between the throwing position and the withdrawing position by the electric pressure plate 300 in a remote control mode is as follows:

after receiving a starting instruction for switching the handle assembly 240 from the throwing position to the withdrawing position, the electronic control board 160 controls the sliding driving motor 121 to rotate, so as to drive the straight stroke piece 140 to linearly slide for a certain distance, and finally the positioning pin 147 abuts against the hole wall of the elongated hole 152, so that the conductive element on the handle assembly 240 withdraws from the throwing-state positioning hole 221, in the process, the stroke switches 161 are sequentially triggered to detect the position of the straight stroke piece 140, and after judging that the straight stroke piece 140 moves to the right position according to the signals, the electronic control board controls the rotating driving motor 131 to start, and after the motor shaft of the rotating driving motor 131 rotates for a certain angle, the driving block 1331 on the clutch piece 133 is circumferentially contacted with the contact block 1321 on the rotating driving wheel 132, so as to drive the rotating stroke piece 150 for a certain angle, for example, the required rotating angle is 45 degrees, so that the handle assembly 240 rotates to the withdrawing-state positioning hole 222. In this process, since the precision of the motor cannot guarantee that the rotary driving wheel 132 rotates the same angle every time, the rotary driving motor 131 stops operating by means of motor locked feedback caused by the abutting engagement of the stopping portion 116 and the locked convex portion, of course, for better accuracy, the sensors may be two infrared sensors that are opposite, the two infrared sensors may be opposite to each other and are arranged on two opposite sides of the rotary stroke member 150 and/or the handle assembly 240, and a part of the structures of the rotary stroke member 150 and the handle assembly 240 may be made of transparent materials, and a part of the wall surfaces of the rotary stroke member 150 and the handle assembly 240 are coated with a layer of light material, when the rotary stroke member 150 or the handle assembly 240 rotates to a position according to a correct rotation direction, the infrared receiving end of the infrared sensor can detect infrared light emitted from the emitting end, and the electronic control board 160 determines that the handle assembly 240 rotates to a position in a correct rotation direction.

Then, the electric control board 160 further controls the sliding driving motor 121 to rotate reversely, so that the handle assembly 240 is driven by the straight stroke component 140 to perform a retracting action, and finally falls into the retracting-state positioning hole 222 corresponding to the retracting position. At this point, the travel switches 161 are again touched and produce a signal change indicating that the handle assembly 240 has moved into position, and the electronic control board 160 then controls the operation of the slide drive motor 121 and the rotary drive motor 131 so that they rotate in opposite directions back to the initial position.

When the manual operation is performed, the above stroke switch 161 and the sensor can be triggered, and the information is referred to by the electronic control board 160 as a reset signal at the next start.

In order to improve the convenience of manual operation, in an embodiment, the rotating stroke part 150 is further provided with two positioning slots arranged at intervals in the circumferential direction thereof, and the bracket 114 is further provided with a positioning element, and the positioning element is selectively clamped into one of the two positioning slots in the rotating process of the rotating stroke part 150 to generate a rotation arrival prompt. In this embodiment, when the operator drives the handle assembly 240 to switch between the throwing position and the withdrawing position, the positioning member is respectively clamped into one positioning groove, so that a relatively obvious pause feeling can be generated, and the operator can be prompted to rotate to the position, thereby avoiding the excessive rotation to cause structural damage.

In this embodiment, the handle assembly 240 specifically includes a handle body, a handle rod fixedly connected to the handle body, and a limiting member, wherein the limiting member is detachably sleeved on the handle rod, and the limiting member is detachably connected to the mounting portion 155 of the rotational stroke member 150, wherein the mounting portion 155 may be provided with a clamping groove structure, the upper stroke of the limiting member has a clamping protrusion structure, and the clamping protrusion is embedded into the clamping groove to detachably connect the handle rod and the rotational stroke member 150.

Further, the box body 111 includes an upper box cover 112 and a lower box cover 113 which are covered with each other, an insertion hole 118 is formed on the upper box cover 112 and/or the lower box cover 113, the insertion hole 118 is used for a handle rod in the handle assembly 240 to extend into, and the base 210 in the pressing plate body 200 can be detachably connected with the upper box cover 112 and/or the lower box cover 113, specifically, the handle assembly 240 and the rotation stroke piece 150 can be clamped and fixed, and the base 210 and the housing assembly 110 can be clamped and fixed. Through the structure setting, the whole pressing plate main body 200 can be conveniently detached and separated from the pressing plate feeding and returning device 100, and further the maintenance in the using process is facilitated.

The above description is only an alternative embodiment of the present invention, and is not intended to limit the scope of the present invention, and all modifications and equivalents made by the contents of the present specification and the accompanying drawings, or directly/indirectly applied to other related technical fields, which are within the spirit of the present invention, are included in the scope of the present invention.

Claims

1. The utility model provides a clamp plate is thrown and is moved back device which characterized in that includes:

the electronic control board is arranged in the shell assembly;

the first driving assembly is arranged on the shell assembly and is electrically connected with the electric control board, and is used for driving the straight stroke piece to linearly and reciprocally slide relative to the shell assembly;

the rotating stroke piece is rotatably arranged on the shell assembly and is provided with an installation part fixedly connected with a handle assembly on the electric pressing plate, the rotating stroke piece is movably connected with the straight stroke piece through a first clutch structure, and the first clutch structure is configured to enable the rotating stroke piece and the straight stroke piece to relatively rotate and relatively slide in a set stroke; and

2. The pressing plate retracting device according to claim 1, wherein the straight stroke piece comprises a connecting part and a driving part which are connected, the first driving component is in transmission contact with the driving part to drive the straight stroke piece to linearly and reciprocally slide, one end of the rotating stroke piece, which is far away from the mounting part, is concavely provided with a slot, and the connecting part extends into the slot;

3. The platen retracting device according to claim 1, wherein the linear stroke member includes a connecting portion and a driving portion connected to each other, the connecting portion being movably connected to the rotary stroke member, the driving portion including an elongated driving plate having a driving rack formed thereon and extending in a longitudinal direction thereof;

4. The platen engaging and disengaging apparatus of claim 3, wherein said drive portion further comprises an abutment plate spaced from said drive plate;

5. The platen retraction device according to claim 4, wherein the housing assembly includes a box and a bracket mounted within the box, the electronic control panel being secured to the bracket;

the support is formed with a limiting groove, the drive plate is accommodated in the limiting groove, the drive rack is located on one side, facing the pressing plate, of the drive plate, and one side, facing away from the pressing plate, of the drive plate slides and abuts against the groove wall of the limiting groove.

6. The platen retraction device according to claim 4, wherein the length of the pressure plate is less than the length of the drive plate.

7. The platen retraction device according to claim 1, wherein the second clutch structure includes a clutch member and a contact block, the clutch member is fixed on a motor shaft of the rotary driving motor, a driving block is disposed on the clutch member, the contact block is formed in an inner cavity of the rotary driving wheel, the driving block and the contact block are at least partially overlapped in the same rotation plane, and the driving block and the contact block are circumferentially positioned or circumferentially separated during rotation of the clutch member;

8. The platen retracting device according to claim 1, wherein a transmission portion in transmission contact with the rotary driving wheel is formed outside the rotary stroke member, the transmission portion including a plurality of straight teeth extending in an axial direction of the rotary stroke member, the plurality of straight teeth being arranged at intervals in a circumferential direction of the rotary stroke member;

9. The pressing plate retracting device according to claim 1, wherein a limit protrusion is further arranged on the rotary stroke piece, a micro switch is mounted on the electric control plate, and the limit protrusion triggers the micro switch when the handle assembly is in the retracting position.

10. The platen retracting device according to claim 9, wherein a rotation blocking protrusion is further disposed on the rotary stroke member, and a stopping portion is further disposed on the housing assembly, the stopping portion being adapted to abut against and engage with the rotation blocking protrusion, so as to limit a rotation angle of the rotary driving motor when the handle assembly is in a retracted position.

11. The platen feeding and withdrawing device as claimed in claim 1, wherein the rotating stroke member is further provided with two positioning slots spaced circumferentially thereof, and the housing assembly is further provided with a positioning member selectively engaged into one of the two positioning slots during rotation of the rotating stroke member to generate a rotation-to-position indication.

12. An electric power pressing plate, characterized by comprising a pressing plate body and the pressing plate moving device as claimed in any one of claims 1 to 11, wherein the pressing plate body comprises a base, a handle component and a conductive component, the base is connected with the shell component, the conductive component is fixed on the base, and the handle component movably penetrates through the base and extends into the shell component to be fixedly connected with the rotating stroke component.

13. The electrical platen of claim 12, wherein the handle assembly and the rotary stroke member are snap-fit, and the base and the housing assembly are snap-fit.