CN214059375U

CN214059375U - Solvent-free compound machine convenient to change rolls

Info

Publication number: CN214059375U
Application number: CN202022791778.2U
Authority: CN
Inventors: 谭翠芳
Original assignee: New Mstar Technology Ltd Of Great Wall Hunan
Current assignee: New Mstar Technology Ltd Of Great Wall Hunan
Priority date: 2020-11-27
Filing date: 2020-11-27
Publication date: 2021-08-27
Anticipated expiration: 2030-11-27

Abstract

The utility model discloses a convenient solvent-free compounding machine of roll change, including the host computer platform, the host computer platform both ends are matchd and are equipped with first supporting seat and second supporting seat, first supporting seat upside symmetry is equipped with the first clamping mechanism that unreels, second supporting seat upside symmetry is equipped with the second and unreels clamping mechanism, the first clamping mechanism one side that unreels matches and is equipped with first storage book mechanism, the second unreels clamping mechanism one side and matches and is equipped with second storage book mechanism, first storage book mechanism one side matches and is equipped with first roll change mechanism, second storage book mechanism one side matches and is equipped with second roll change mechanism, the host computer platform middle part matches and is equipped with rolling clamping mechanism, rolling clamping mechanism downside matches and is equipped with unloading mechanism. The utility model can rapidly replace the winding roller, the speed of winding change is rapid and convenient, and the working efficiency is effectively improved; meanwhile, the unwinding position can be ensured to be accurate, and the product quality is improved.

Description

Solvent-free compound machine convenient to change rolls

Technical Field

The utility model relates to a solventless laminator technical field especially relates to a convenient solventless laminator of roll change.

Background

The solvent-free compound machine is commonly used for various packaging production, has the characteristics of wide application range, environmental protection, sanitation and high efficiency, is particularly suitable for the food and drug packaging industry, adopts the working principle of compounding two or more base materials by using a solvent-free adhesive, and mainly depends on manual reloading when replacing rolls, the manual reloading usually consumes longer time, so that the working efficiency is reduced, meanwhile, the placement accuracy of a roll is influenced to a certain extent, and the placement effect is poor; therefore, a solvent-free compound machine with convenient roll change is proposed to solve the problems.

Disclosure of Invention

The utility model aims at solving the defects existing in the prior art and providing a solvent-free compound machine with convenient roll changing.

In order to achieve the above purpose, the utility model adopts the following technical scheme: the utility model provides a convenient solvent-free compounding machine of roll change, includes the host computer platform, the host computer platform both ends are matchd and are equipped with first supporting seat and second supporting seat, first supporting seat upside symmetry is equipped with the first clamping mechanism that unreels, second supporting seat upside symmetry is equipped with the second and unreels clamping mechanism, the first clamping mechanism one side that unreels matches and is equipped with first storage roll mechanism, the second unreels clamping mechanism one side and matches and is equipped with second storage roll mechanism, first storage roll mechanism one side matches and is equipped with first roll change mechanism, the second stores up roll mechanism one side and matches and is equipped with second roll change mechanism, the host computer platform middle part matches and is equipped with rolling clamping mechanism, rolling clamping mechanism downside matches and is equipped with unloading mechanism.

Preferably, first clamping mechanism that unreels sets up two on first supporting seat including the symmetry unreels the roller support arm, first supporting seat is equipped with the first slide rail that matches with two unreel the roller support arm, match fixedly on the first supporting seat and be equipped with two electric telescopic handle, two first electric telescopic handle front end respectively with two unreel roller support arm one side fixed connection, two unreel the roller support arm relative one side all be equipped with unreel the recess that the roller both ends match, one of them it is equipped with in the unreeling the roller support arm and is used for driving unreeling roller pivoted motor, the second unreels clamping mechanism and first unreeling clamping mechanism structure the same.

Preferably, the first coil storage mechanism comprises a first support frame, one side of the first support frame is vertically provided with a motor base, a rotating column is rotatably arranged at the upper end of the first supporting frame, one end of the rotating column penetrates through the motor base and is coaxially and fixedly connected with a second motor, the second motor is arranged in the motor base, the side surface of one end of the rotating column close to the first supporting frame is uniformly and fixedly provided with a plurality of unwinding roller supporting rods, a plurality of sliding unwinding roller supporting rods corresponding to the unwinding roller supporting rods are uniformly arranged at one end of the rotating column close to the motor base, the rotating column is provided with a sliding groove matched with the sliding unwinding roller supporting rods, one side of the motor base is uniformly and fixedly provided with a plurality of second electric telescopic rods, the front ends of the second electric telescopic rods are fixedly connected with one sides of the sliding unwinding roller supporting rods respectively, and the second winding mechanism is identical to the first winding mechanism in structure.

Preferably, first roll change mechanism is including removing the seat, it is equipped with the removal seat slide rail to remove a downside matching, it is equipped with third electric telescopic handle to remove seat one side level, third electric telescopic handle front end with remove seat one side fixed connection, it is fixed to be equipped with the support arm that two slopes set up, two to remove seat upside symmetry the support arm upper end is rotated and is equipped with the hook-like fixture block that matches with the unwinding roller, the support arm matches with the rotation department of hook-like fixture block and is equipped with torsion spring, it is fixed with the auxiliary stay arm that matches with the unwinding roller to remove seat upside slope, auxiliary stay arm is in between two support arms, and second roll change mechanism is the same with first roll change mechanism.

Preferably, rolling clamping mechanism includes the third supporting seat, third supporting seat upside symmetry is equipped with two wind-up roll support arms, be equipped with the second slide rail that matches with two wind-up roll support arms on the third supporting seat, match fixedly on the third supporting seat and be equipped with two fourth electric telescopic handle, two fourth electric telescopic handle front end respectively with two wind-up roll support arm one side fixed connection, two one side that the wind-up roll support arm is relative all is equipped with the wind-up roll recess that matches with the wind-up roll both ends, one of them be equipped with in the wind-up roll support arm and be used for driving the wind-up roll pivoted third motor.

Preferably, unloading mechanism includes two arc supports, two arc support symmetry sets up and is in under the wind-up roll, two arc support matches, two with the wind-up roll shape arc support lower extreme all fixed the matching is equipped with fifth electric telescopic handle, two fifth electric telescopic handle lower extreme all fixes on same long rectangle slider, long rectangle slider downside matches and is equipped with long slide rail, long slide rail one end is equipped with servo motor, the coaxial fixed driving pulley that is equipped with of servo motor, the long slide rail other end rotates and is equipped with driven pulley, driving pulley passes through belt transmission with driven pulley and is connected, the belt level sets up in long slide rail, long rectangle slider matches fixed connection with the belt.

Compared with the prior art, the beneficial effects of the utility model are that:

1. the utility model discloses a set up the first storage of the same structure and roll up the mechanism with the second storage at two places of unreeling and match, and first storage of roll up the mechanism with the second storage roll up the mechanism and all match and be equipped with corresponding first change of lap mechanism and second change of lap mechanism, thereby realize carrying out the quick replacement function to the winding up roller, change the roll speed comparatively swiftly, change the roll operation comparatively convenient simultaneously, the effectual human cost that has reduced, improved work efficiency; the winding position is matched with the blanking mechanism, so that the winding roller can be quickly and conveniently taken out, and the working efficiency is further effectively improved;

2. the utility model discloses a matching at two places of unreeling sets up first unreeling clamping mechanism and the second unreels clamping mechanism to and match at rolling department and set up rolling clamping mechanism, thereby realize guaranteeing that two unreel the position and keep accurate, guarantee that the rolling position keeps accurate, the skew problem appears in the effectual during operation material that has reduced, reduce the fault incidence, the effectual quality that improves the production product simultaneously.

Drawings

Fig. 1 is a schematic structural view of the solvent-free compound machine with convenient roll change provided by the utility model.

Fig. 2 is a partially enlarged view of a portion a in fig. 1.

Fig. 3 is a partially enlarged view of B in fig. 1.

Fig. 4 is a front view of the solvent-free compound machine with convenient roll change.

Fig. 5 is a side view of the solvent-free compound machine with convenient roll change of the utility model.

Fig. 6 is a partially enlarged view of C in fig. 5.

In the figure: 1 mainframe platform, 2 first supporting seats, 3 second supporting seats, 4 unreel the roller support arm, 5 first electric telescopic handle, 6 first supporting seats, 7 motor seats, 8 rotating columns, 10 slip unreel roller branch, 11 second electric telescopic handle, 12 remove the seat, 13 remove a slide rail, 14 third electric telescopic handle, 15 support arms, 16 hook-shaped fixture blocks, 17 auxiliary support arm, 18 third supporting seats, 19 wind-up roller support arms, 20 fourth electric telescopic handle, 21 arc support, 22 fifth electric telescopic handle, 23 long rectangular slider, 24 long slide rails, 25 servo motor, 26 driving pulley, 27 driven pulley, 28 belts.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments.

Referring to fig. 1-6, a solvent-free compound machine with convenient roll change comprises a mainframe 1, wherein the mainframe 1 is the same as the prior art, an internal device can compound two or more substrates together by solvent-free adhesives, a first support seat 2 and a second support seat 3 are arranged at two ends of the mainframe 1 in a matching way, the first support seat 2 and the second support seat 3 both play a role of supporting, a first unreeling clamping mechanism is symmetrically arranged at the upper side of the first support seat 2, a second unreeling clamping mechanism is symmetrically arranged at the upper side of the second support seat 3, the first unreeling clamping mechanism and the second unreeling clamping mechanism play a role of clamping a roll to ensure the position accuracy, a first roll storage mechanism is arranged at one side of the first unreeling clamping mechanism in a matching way, a second roll storage mechanism is arranged at one side of the second unreeling clamping mechanism in a matching way, the first roll storage mechanism and the second roll storage mechanism play a role of storing rolls, a first roll change mechanism is arranged at one side of the first roll storage mechanism in a matching way, the second reel changing mechanism is arranged on one side of the second reel storing mechanism in a matching mode, the first reel changing mechanism and the second reel changing mechanism play a role in reel changing, the winding clamping mechanism is arranged in the middle of the mainframe platform 1 in a matching mode, the winding clamping mechanism plays a role in clamping winding, the position accuracy is guaranteed, and the discharging mechanism is arranged on the lower side of the winding clamping mechanism in a matching mode.

Wherein, the first unreeling clamping mechanism comprises two unreeling roller supporting arms 4 symmetrically arranged on the first supporting seat 2, the two unreeling roller supporting arms 4 play a supporting role, the first supporting seat 2 is provided with a first slide rail matched with the two unreeling roller supporting arms 4, the two unreeling roller supporting arms 4 can slide on the first slide rail, the first supporting seat 2 is fixedly provided with two first electric telescopic rods 5 in a matching way, the first electric telescopic rods 5 are the same as the prior art, the front ends of the two first electric telescopic rods 5 are respectively fixedly connected with one sides of the two unreeling roller supporting arms 4, the two first electric telescopic rods 5 can drive the two corresponding unreeling roller supporting arms 4 to move, one side of the two unreeling roller supporting arms 4 opposite to each other is provided with a groove matched with the two ends of the unreeling roller, the two unreeling roller supporting arms 4 convenient to move are used for clamping the unreeling roller, one of the unreeling roller supporting arms 4 is internally provided with a first motor used for driving the unreeling roller to rotate, the first motor is the same as the prior art, plays a role in driving the clamped unreeling roller to rotate, and the second unreeling clamping mechanism is the same as the first unreeling clamping mechanism in structure.

Wherein, the first coil storage mechanism comprises a first support frame 6, the first support frame 6 plays a supporting role, one side of the first support frame 6 is vertically provided with a motor base 7, the motor base 7 plays a supporting role, the upper end of the first support frame 6 is rotatably provided with a rotating column 8, the rotating column 8 can rotate, one end of the rotating column 8 penetrates through the motor base 7 and is coaxially and fixedly connected with a second motor, the second motor is the same as the prior art and plays a role of driving the rotating column 8, the second motor is positioned in the motor base 7, one end side surface of the rotating column 8 close to the first support frame 6 is uniformly and fixedly provided with a plurality of unwinding roller support rods, one end of the rotating column 8 close to the motor base 7 is uniformly provided with a plurality of sliding unwinding roller support rods 10 corresponding to the plurality of unwinding roller support rods, the unwinding roller support rods are matched with the sliding unwinding roller support rods 10 to support and fix the unwinding roller without influencing the rotation of the unwinding roller, the rotating column 8 is provided with a chute matched with, slide and unreel roller branch 10 and can slide in the spout, the spout plays spacing effect to sliding

unreeling roller branch

10, 7 one side of motor cabinet is evenly fixed and is equipped with a plurality of second electric telescopic handle 11, second electric telescopic handle 11 is the same with prior art, 10 one side fixed connection are unreeled with a plurality of slides respectively to a plurality of 11 front ends of second electric telescopic handle, a plurality of second electric telescopic handle 11 can drive the slip that corresponds and unreel roller branch 10 concertina movement, the second is stored up and is rolled up mechanism and first storage and roll up mechanism structure the same.

Wherein, the first roll changing mechanism comprises a moving seat 12, the moving seat 12 plays a supporting role, a moving seat slide rail 13 is arranged at the lower side of the moving seat 12 in a matching way, the moving seat 12 can move on the moving seat slide rail 13, the moving seat slide rail 13 plays a role in limiting the direction of the moving seat 12, a third electric telescopic rod 14 is horizontally arranged at one side of the moving seat 12, the third electric telescopic rod 14 is the same as the prior art, the front end of the third electric telescopic rod 14 is fixedly connected with one side of the moving seat 12, the third electric telescopic rod 14 can drive the corresponding moving seat 12 to move, two obliquely arranged supporting arms 15 are symmetrically and fixedly arranged at the upper side of the moving seat 12, the two supporting arms 15 play a role in supporting a roll, a hook-shaped fixture block 16 matched with a unreeling roll is rotatably arranged at the upper ends of the two supporting arms 15, a torsion spring is arranged at the rotating part of the supporting arm 15 and the hook-shaped fixture block 16, the hook-shaped fixture block 16 is matched with the torsion spring to play a role in fixing a roll, under the action of a certain force, the hook-shaped fixture block 16 can rotate, the upper side of the movable seat 12 is obliquely and fixedly provided with an auxiliary support arm 17 matched with the unwinding roller, the auxiliary support arm 17 is positioned between the two support arms 15, the auxiliary support arm 17 plays a role of the auxiliary support arm 15, and the second unwinding mechanism is the same as the first unwinding mechanism.

Wherein, the winding clamping mechanism comprises a third supporting seat 18, the third supporting seat 18 plays a supporting role, two winding roller supporting arms 19 are symmetrically arranged at the upper side of the third supporting seat 18, the two winding roller supporting arms 19 play a role in clamping the winding roller, a second slide rail matched with the two winding roller supporting arms 19 is arranged on the third supporting seat 18, the two winding roller supporting arms 19 can slide on the second slide rail, two fourth electric telescopic rods 20 are fixedly matched on the third supporting seat 18, the fourth electric telescopic rods 20 are the same as the prior art, the front ends of the two fourth electric telescopic rods 20 are respectively and fixedly connected with one sides of the two winding roller supporting arms 19, the two fourth electric telescopic rods 20 can drive the corresponding winding roller supporting arms 19 to move, winding roller grooves matched with the two ends of the winding roller are respectively arranged at one side opposite to the two winding roller supporting arms 19, and the two winding roller supporting arms 19 which are convenient to move are used for clamping the winding roller, a third motor used for driving the unwinding roller to rotate is arranged in one winding roller supporting arm 19, and the third motor is the same as the third motor in the prior art and plays a role in driving the winding roller to rotate after being clamped.

Wherein, the blanking mechanism comprises two arc supports 21, the two arc supports 21 play a supporting role, the two arc supports 21 are symmetrically arranged and positioned under the wind-up roll, the two arc supports 21 are matched with the wind-up roll in shape, the lower ends of the two arc supports 21 are both fixedly matched with a fifth electric telescopic rod 22, the fifth electric telescopic rod 22 is the same as the prior art, the lower ends of the two fifth electric telescopic rods 22 are both fixed on the same long rectangular slide block 23, the fifth electric telescopic rod 22 can drive the corresponding two arc supports 21 to extend and retract the wind-up roll, the lower side of the long rectangular slide block 23 is matched with a long slide rail 24, one end of the long slide rail 24 is provided with a servo motor 25, the servo motor 25 is the same as the prior art and plays a driving role, the servo motor 25 is coaxially and fixedly provided with a driving belt pulley 26, the servo motor 25 can drive the driving belt pulley 26 to rotate, the other end of the long slide rail 24 is rotatably provided with a driven belt pulley 27, the driving belt wheel 26 is in transmission connection with the driven belt wheel 27 through a belt 28, the driving belt wheel 26 and the driven belt wheel 27 support the belt 28, the driving belt wheel 26 can drive the belt 28 to rotate, the belt 28 is horizontally arranged in the long slide rail 24, the long rectangular sliding block 23 is in matched fixed connection with the belt 28, and the belt 28 can drive the long rectangular sliding block 23 to move along the long slide rail 24.

The utility model discloses in, the device's use step is as follows:

1. placing an empty winding roller, placing the empty winding roller on the two opposite arc-shaped supports 21, starting a servo motor 25, enabling the servo motor 25 to drive a driving belt wheel 26 to rotate, enabling the driving belt wheel 26 to act with a driven belt wheel 27 to drive a belt 28 to rotate, enabling the belt 28 to drive a long rectangular sliding block 23 to move along a long sliding rail 24, enabling the long sliding rail 24 to move under the two winding roller supporting arms 19, starting the two corresponding fifth electric telescopic rods 22, enabling the two fifth electric telescopic rods 22 to drive the two corresponding arc-shaped supports 21 to ascend until the empty winding roller corresponds to the two winding roller supporting arms 19;

2. starting the two corresponding fourth electric telescopic rods 20, driving the corresponding winding roller supporting arms 19 to move by the two fourth electric telescopic rods 20, and clamping the empty winding roller by the two winding roller supporting arms 19;

3. unreeling, starting a second motor, driving a rotating column 8 to rotate, driving the rotating column 8 to drive an unreeling roller support rod and a sliding unreeling roller support rod 10 which clamp a reeling roller, and stopping the second motor when the unreeling roller support rod and the sliding unreeling roller support rod 10 which clamp the reeling roller rotate to positions corresponding to the two unreeling roller support arms 4, wherein the second reel storing mechanism is the same as the steps;

4. starting the two corresponding first electric telescopic rods 5, driving the two corresponding unwinding roller supporting arms 4 to move by the two first electric telescopic rods 5, clamping the unwinding rollers by the two unwinding roller supporting arms 4, and enabling the second unwinding clamping mechanism to be the same as the steps;

5. the first roll storage mechanism is operated to feed a roll storage roller, a corresponding second electric telescopic rod 11 is started, and the second electric telescopic rod 11 drives a corresponding sliding unwinding roller supporting rod 10 to move and open; roll changing is carried out through a first roll changing mechanism, a corresponding third electric telescopic handle 14 is started, the third electric telescopic handle 14 drives a corresponding moving seat 12 to move, the moving seat 12 drives two corresponding supporting arms 15 to move, until a rolling roller and a corresponding rolling roller releasing support rod are matched with a sliding rolling roller releasing support rod 10 in position, a corresponding second electric telescopic handle 11 is started, the second electric telescopic handle 11 drives a corresponding sliding rolling roller releasing support rod 10 to move and close, the rolling roller is fixed, the supporting arms 15 are retracted, a hook-shaped fixture block 16 is opened under the action of force, and roll storage is completed.

The above, only be the concrete implementation of the preferred embodiment of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art is in the technical scope of the present invention, according to the technical solution of the present invention and the utility model, the concept of which is equivalent to replace or change, should be covered within the protection scope of the present invention.

Claims

1. The utility model provides a convenient solvent-free compounding machine of roll change, includes host computer platform (1), its characterized in that, host computer platform (1) both ends are matchd and are equipped with first supporting seat (2) and second supporting seat (3), first supporting seat (2) upside symmetry is equipped with the first clamping mechanism that unreels, second supporting seat (3) upside symmetry is equipped with the second and unreels clamping mechanism, first clamping mechanism one side that unreels matches and is equipped with first storage roll mechanism, the second unreels clamping mechanism one side and matches and is equipped with second storage roll mechanism, first storage roll mechanism one side matches and is equipped with first roll change mechanism, second storage roll mechanism one side matches and is equipped with second roll change mechanism, host computer platform (1) middle part matches and is equipped with clamping mechanism, rolling clamping mechanism downside matches and is equipped with unloading mechanism.

2. The solvent-free compound machine with convenient roll change of claim 1, the first unreeling clamping mechanism comprises two unreeling roller supporting arms (4) which are symmetrically arranged on the first supporting seat (2), the first supporting seat (2) is provided with a first sliding rail matched with the two unreeling roller supporting arms (4), two first electric telescopic rods (5) are matched and fixed on the first supporting seat (2), the front ends of the two first electric telescopic rods (5) are respectively and fixedly connected with one side of two unwinding roller supporting arms (4), grooves matched with the two ends of the unwinding roller are respectively arranged on one side opposite to the two unwinding roller supporting arms (4), and a first motor for driving the unwinding roller to rotate is arranged in one of the unwinding roller supporting arms (4), and the second unwinding clamping mechanism and the first unwinding clamping mechanism have the same structure.

3. The solvent-free compound machine convenient for roll changing according to claim 1, wherein the first roll storage mechanism comprises a first support frame (6), a motor base (7) is vertically arranged on one side of the first support frame (6), a rotating column (8) is rotatably arranged at the upper end of the first support frame (6), one end of the rotating column (8) penetrates through the motor base (7) and is coaxially and fixedly connected with a second motor, the second motor is arranged in the motor base (7), a plurality of unwinding roller support rods are uniformly and fixedly arranged on the side surface of one end, close to the first support frame (6), of the rotating column (8), a plurality of sliding unwinding roller support rods (10) corresponding to the plurality of unwinding roller support rods are uniformly arranged at one end, close to the motor base (7), of the rotating column (8), a sliding groove matched with the plurality of sliding unwinding roller support rods (10) is arranged on the rotating column (8), motor cabinet (7) one side is evenly fixed and is equipped with a plurality of second electric telescopic handle (11), and is a plurality of second electric telescopic handle (11) front end respectively with a plurality of slip unreel roller branch (10) one side fixed connection, the second store up roll mechanism with first store up roll mechanism structure the same.

4. The solvent-free compound machine with convenient roll changing as claimed in claim 1, wherein the first roll changing mechanism comprises a moving seat (12), a moving seat slide rail (13) is arranged on the lower side of the moving seat (12) in a matching manner, a third electric telescopic rod (14) is horizontally arranged on one side of the moving seat (12), the front end of the third electric telescopic rod (14) is fixedly connected with one side of the moving seat (12), two obliquely arranged supporting arms (15) are symmetrically and fixedly arranged on the upper side of the moving seat (12), a hook-shaped fixture block (16) matched with the unwinding roller is rotatably arranged on the upper ends of the two supporting arms (15), a torsion spring is arranged at the rotating position of the supporting arm (15) and the hook-shaped fixture block (16) in a matching manner, an auxiliary supporting arm (17) matched with the unwinding roller is fixedly arranged on the upper side of the moving seat (12) in an oblique manner, and the auxiliary supporting arm (17) is arranged between the two supporting arms (15), the second reel change mechanism is the same as the first reel change mechanism.

5. The solvent-free compound machine with the function of convenient roll change as claimed in claim 1, wherein the winding clamping mechanism comprises a third supporting seat (18), two winding roll supporting arms (19) are symmetrically arranged on the upper side of the third supporting seat (18), a second sliding rail matched with the two winding roll supporting arms (19) is arranged on the third supporting seat (18), two fourth electric telescopic rods (20) are fixedly arranged on the third supporting seat (18) in a matched manner, the front ends of the two fourth electric telescopic rods (20) are respectively and fixedly connected with one side of the two winding roll supporting arms (19), winding roll grooves matched with the two ends of a winding roll are arranged on the opposite side of each of the two winding roll supporting arms (19), and a third motor for driving the unwinding roll to rotate is arranged in one of the winding roll supporting arms (19).

6. The solvent-free compound machine convenient for roll changing according to claim 1, wherein the blanking mechanism comprises two arc-shaped supports (21), the two arc-shaped supports (21) are symmetrically arranged and are positioned under the winding roller, the two arc-shaped supports (21) are matched with the winding roller in shape, the lower ends of the two arc-shaped supports (21) are respectively and fixedly provided with a fifth electric telescopic rod (22), the lower ends of the two fifth electric telescopic rods (22) are respectively fixed on the same long rectangular sliding block (23), the lower side of the long rectangular sliding block (23) is matched with a long sliding rail (24), one end of the long sliding rail (24) is provided with a servo motor (25), the servo motor (25) is coaxially and fixedly provided with a driving pulley (26), the other end of the long sliding rail (24) is rotatably provided with a driven pulley (27), the driving pulley (26) is in transmission connection with the driven pulley (27) through a belt (28), the belt (28) is horizontally arranged in the long slide rail (24), and the long rectangular slide block (23) is matched and fixedly connected with the belt (28).