CN115436209A - A protective film abrasion resistance automatic testing device - Google Patents

Abstract

The invention relates to the technical field of protective film testing, and discloses an automatic testing device for the wear resistance of a protective film, which solves the problems that a plurality of rotary driving mechanisms increase the cost, and when the position of a friction block needs to be adjusted, the position of the corresponding rotary driving mechanism also needs to be changed, and the wiring difficulty is increased; the position of being convenient for according to actual demand, adjusting every clutch blocks through the design of a synchronous drive mechanism, can be so that a plurality of clutch blocks synchronous revolution, the cost is reduced, the convenient wiring.

Description

A protective film abrasion resistance automatic testing device

technical field

The invention belongs to the technical field of protective film testing, in particular to a protective film wear resistance automation

test device.

Background technique

According to the application, the protective film can be divided into digital product protective film, automobile protective film, household protective film, food preservation protective film, etc. Among them, the ePTFE protective film is a microporous film formed by expanding and stretching polytetrafluoroethylene as raw material. When processing the ePTFE protective film, it is necessary to test its wear resistance. The existing protective film wear test mechanism generally uses a rotating friction block to test the wear resistance of the protective film, and the friction block is connected to the rotating drive mechanism. Each friction block Corresponding to one rotary drive mechanism, multiple rotary drive mechanisms increase the cost. When the position of the friction block needs to be adjusted, the position of the corresponding rotary drive mechanism will also change, which increases the difficulty of wiring and has certain limitations.

Contents of the invention

In view of the above situation, in order to overcome the defects of the prior art, the present invention provides an automatic test device for the wear resistance of the protective film, which effectively solves the problem of increasing the cost of multiple rotary drive mechanisms in the above background technology, and when it is necessary to adjust the position of the friction block. , the position of the corresponding rotary drive mechanism will also change, which increases the difficulty of wiring.

In order to achieve the above object, the present invention provides the following technical solutions: a protective film wear resistance automatic testing device, including a test bench, the top of the test bench is provided with a clamping ring, and the clamping ring and the test bench pass through a vertical slide Connection, the upper part of the clamping ring is provided with a lifting seat, the lifting seat and the test bench are connected by a number of first electric telescopic rods, a number of screw rods are provided under the lifting seat, friction blocks are provided under the screw rod, and the outer cover of the screw rod There is a fixed seat for fixed connection, and two movable columns are fixedly connected to the friction block. The movable column runs through the fixed seat, and the top of the movable column is fixedly connected with the limit plate on the top of the fixed seat. The screw rod and the friction block are adjusted by elastic force. Component connection, several first rectangular holes are opened on the lifting seat, a movable seat is arranged in the first rectangular hole, the screw rod passes through the movable seat, and the first bearing is provided at the connection between the screw rod and the movable seat, and the movable seat and the lifting seat pass through The first guide unit is connected, the top of the screw rod is fixedly connected with the first bevel gear, the top of the lifting seat is fixedly connected with a protective shell, the protective shell is a cavity structure with an open bottom, and the top of the movable seat is fixedly connected with a first fixed gear. One side of the first fixed plate is provided with a rotating sleeve, the rotating sleeve runs through the first fixed plate, a second bearing is provided at the penetration of the rotating sleeve and the first fixed plate, and the outer sleeve of the rotating sleeve is provided with a second fixedly connected The bevel gear, the second bevel gear meshes with the first bevel gear, the first rotating shaft is arranged in the rotating sleeve, the rotating sleeve and the first rotating shaft are connected through the second guide unit, and several first rotating shafts are arranged in the protective shell. The rotating shaft is connected with a synchronous driving mechanism matched with each other, and synchronous pressing components respectively matched with the clamping ring and the first fixing plate are arranged on the test platform.

Preferably, the synchronous pressing assembly includes a first connecting plate fixedly installed on the top of the first fixing plate, a number of second rectangular holes are opened on the top inner wall of the protective shell, the first connecting plate passes through the second rectangular holes, and the upper part of the protective shell A pressing plate is provided, the bottom of the pressing plate is provided with several supporting plates, the first connecting plate is fixedly connected with the supporting plate, and the top of the protective shell is fixedly connected with several positioning columns, the positioning columns pass through the pressing plate, and the two sides of the clamping ring are respectively fixed The first slider is connected, and the two sides of the pressing plate are respectively fixedly connected with the second slider. The cross-sections of the first slider and the second slider are both right-angled triangle structures, and one side of the first slider is provided with a movable sleeve. , the movable sleeve and the test bench are connected through a horizontal moving unit, one side of the movable sleeve is provided with a number of first rollers, the first rollers are connected to the movable sleeve in rotation, one side of the second slider is provided with a slide plate, and one side of the slide plate is provided with Several second rollers, the second rollers are rotatably connected with the slide plate, the bottom end of the slide plate is plugged into the movable sleeve, the two sides of the lifting seat are respectively provided with limit slots, the limit plate is fixedly connected to the slide plate, and one end of the limit plate is inserted Connected to the limit slot.

Preferably, the horizontal moving unit includes a second connecting plate arranged on one side of the movable sleeve, the bottom of the second connecting plate is fixedly connected to the top of the test bench, and the second connecting plate and the movable sleeve are connected through a second electric telescopic rod, Manually drive the clamping ring to move up, so that the protective film to be tested is placed between the test bench and the clamping ring, loosen the clamping ring, the clamping ring presses the protective film, and the movable sleeve is driven to move horizontally by the second electric telescopic rod , so that the first roller is in contact with the inclined surface of the first slider, and downward pressure is applied to the first slider, so that the clamping ring and the test table clamp the protective film, the fixing of the protective film is completed, and the movable sleeve moves During the process, the movable sleeve drives the sliding plate to move, one end of the limiting plate slides in the limiting groove, and the second roller contacts the inclined surface of the second sliding block, exerting a downward force on the second sliding block, and the pressing plate presses The support plate further fixes the movable seat relative to the lifting seat, completing the fixing of the position of the friction block.

Preferably, the vertical slider includes several third connecting plates fixedly installed on the clamping ring, and a plurality of limit posts are fixedly connected on the test bench, and the limit posts pass through the third connecting plate, pass through the third connecting plate And the design of the limit column makes the clamping ring move smoothly in the vertical direction.

Preferably, the first guide unit includes first guide blocks symmetrically arranged on both sides of the movable seat, the first guide block and the movable seat are fixedly connected, the inner walls of both sides of the first rectangular hole are respectively provided with first guide grooves, and the second A guide block is located in the first guide groove, the second guide unit includes two second guide blocks fixedly installed on the inner wall of the rotating sleeve, two second guide grooves are opened on the first rotating shaft, and the second guide block is located in the first In the second guide groove, the friction block is manually driven to move in the horizontal direction, and then the screw rod drives the movable seat to slide in the first rectangular hole, changing the position of the friction block. Through the cooperation of the first guide block and the first guide groove, the movable seat Sliding smoothly in the first rectangular hole, at the same time, the first fixed plate drives the rotating sleeve to move horizontally, the second guide block slides in the second guide groove, and the first electric telescopic rod drives the lifting seat to move down, and the sliding plate moves relative to the movable sleeve Sliding, the friction block is in contact with the protective film, and the synchronous drive mechanism drives several first rotating shafts to rotate, and the first rotating shaft drives the second guide block and the rotating sleeve to rotate, so that the second bevel gear drives the first bevel gear to rotate, That is, the screw rod drives the friction block to rotate.

Preferably, the synchronous drive mechanism includes a third bevel gear fixedly installed on one end of the first rotating shaft, the other end of the first rotating shaft is connected to the inner wall of one side of the protective case through a third bearing, and several first gears are fixedly connected to the lifting seat. Two fixed plates, the first rotating shaft runs through the second fixed plate, a fourth bearing is provided at the penetration of the first rotating shaft and the second fixed plate, a motor is fixedly connected to the inner wall of the protective case, and the output end of the motor is fixedly connected to the second rotating shaft , the outside of the second rotating shaft is provided with a number of fixedly connected fourth bevel gears, the fourth bevel gear meshes with the third bevel gear, and the motor drives the second rotating shaft to rotate, thereby causing the fourth bevel gear to rotate, Through the cooperation between the fourth bevel gear and the third bevel gear, when the fourth bevel gear rotates, the fourth bevel gear drives the third bevel gear to rotate, and then the several first rotating shafts rotate synchronously.

Preferably, the end of the second rotating shaft away from the motor is provided with a third fixing plate, the third fixing plate is fixedly connected to the lifting seat, the second rotating shaft and the third fixing plate are connected through the fifth bearing, and the third fixing plate and the first The design of the five bearings makes one end of the second rotating shaft rotatably connected to the lifting seat, reducing the possibility of tilting and shaking during the rotation of the second rotating shaft.

Preferably, the elastic force adjustment assembly includes a threaded sleeve arranged between the fixed seat and the friction block, and the threaded sleeve is sleeved on the outside of the screw rod, a movable plate is arranged between the threaded sleeve and the friction block, and the movable plate and the friction block pass through The first compression spring is connected, the threaded sleeve and the movable plate are connected through the sixth bearing, and the movable column runs through the movable plate, the threaded sleeve and the movable column are connected by a rotating locking mechanism, and the friction block is in contact with the protective film during the downward movement of the screw rod. Contact, the first compression spring is in a compressed state, the first compression spring exerts a downward force on the friction block, and then can adjust the strength of the friction block pressing the protective film, manually rotate the threaded sleeve, so that the threaded sleeve moves vertically relative to the screw rod, Furthermore, the height of the movable plate is adjusted, thereby adjusting the initial distance between the movable plate and the friction block, the initial length of the first compression spring can be adjusted, and the strength of each friction block pressing the protective film can be adjusted.

Preferably, the rotation locking mechanism includes a first fixing ring sleeved on the outside of the threaded sleeve, the first fixing ring is fixedly connected to the threaded sleeve, a number of positioning grooves are opened on the first fixing ring, and one side of the fixing seat is provided with The plug-in block has a slot on the fixed seat, and one end of the plug-in block is plugged into the slot. The bottom of the plug-in block is fixedly connected with a positioning rod, and the positioning rod runs through one of the corresponding positioning slots. The connecting frame is in contact with the positioning rod, and the connecting frame and the two movable columns are connected through an elastic slider.

Preferably, the elastic slider includes a movable ring and a second fixed ring sleeved outside the movable column, the second fixed ring is located below the movable ring, and the second fixed ring is fixedly connected to the movable column, and the two ends of the connecting frame They are respectively fixedly connected with the two movable rings, the outer part of the movable column is provided with a second compression spring, and the two ends of the second compression spring are respectively fixedly connected with the movable ring and the second fixed ring, the positioning rod penetrates the corresponding positioning groove, and is inserted into the One end of the block is inserted into the slot, and the position of the first fixed ring is limited by the positioning rod, so as to prevent the first fixed ring from rotating relative to the screw rod, thereby preventing the threaded sleeve from rotating relative to the screw rod during the rotation of the screw rod, and manually driving the connecting frame down. Move, so that the movable ring moves down relative to the second fixed ring, the second compression spring is in a compressed state, the connecting frame is no longer in contact with the positioning rod, the limit on the position of the positioning rod is released, and the positioning rod is manually driven to move away from the first fixed ring , so that the positioning rod is out of the positioning groove, and the plug is out of the slot, the restriction on the position of the first fixing ring can be released, so that the first fixing ring and the threaded sleeve can rotate relative to the screw rod, and when the threaded sleeve does not need to be rotated, drive again The positioning rod moves, the insert block is inserted into the corresponding slot, and the positioning rod penetrates the positioning slot to limit the position of the first fixed ring and the threaded sleeve, loosen the connecting frame, and the second compression spring drives the movable ring to move up, so that the connecting frame Move to one side of the positioning rod, the position of the connecting frame limits the positioning rod, and prevents the positioning rod from moving away from the first fixing ring, and the fixing between the threaded sleeve and the screw rod can be completed.

Compared with prior art, the beneficial effect of the present invention is:

(1) Manually drive the friction block to move in the horizontal direction, so that the screw drive movable seat slides in the first rectangular hole, changing the position of the friction block, and through the cooperation of the first guide block and the first guide groove, the movable seat is in the Smooth sliding in the first rectangular hole, at the same time, the first fixed plate drives the rotating sleeve to move horizontally, and the second guide block slides in the second guide groove. After the position of the friction block is adjusted, the clamping ring is manually driven to move up, so that The protective film to be tested is placed between the test bench and the clamping ring, loosen the clamping ring, and the clamping ring presses the protective film. Through the design of the third connecting plate and the limit post, the vertical direction of the clamping ring is stable. Move, drive the movable sleeve to move horizontally through the second electric telescopic rod, and then make the first roller contact with the inclined surface of the first slider, exert downward pressure on the first slider, and then make the clamping ring and the test bench clamp Hold the protective film to complete the fixing of the protective film. During the movement of the movable sleeve, the movable sleeve drives the slide plate to move, one end of the limiting plate slides in the limiting groove, and the second roller contacts the inclined surface of the second slider. A downward force is applied to the second slider, and the pressing plate presses the support plate, so that the movable seat is fixed relative to the lifting seat, and the position of the friction block is fixed. The first electric telescopic rod drives the lifting seat to move down, and the sliding plate moves relative to the movable sleeve. Sliding, the friction block is in contact with the protective film, and the synchronous drive mechanism drives several first rotating shafts to rotate, and the first rotating shaft drives the second guide block and the rotating sleeve to rotate, so that the second bevel gear drives the first bevel gear to rotate, The friction block can be driven by the screw to rotate, and the protective film can be tested through the friction block, which is convenient to adjust the position of each friction block according to actual needs. Through the design of a synchronous driving mechanism, several friction blocks can be rotated synchronously , which reduces the cost and facilitates wiring;

(2) The motor drives the second rotating shaft to rotate, thereby causing the fourth bevel gear to rotate. Through the cooperation between the fourth bevel gear and the third bevel gear, when the fourth bevel gear rotates, the fourth bevel gear Drive the third bevel gear to rotate, and then make several first rotating shafts rotate synchronously. Through the design of the third fixed plate and the fifth bearing, one end of the second rotating shaft is rotationally connected with the lifting seat, reducing the inclination during the rotation of the second rotating shaft possibility of shaking;

(3) During the downward movement of the screw, the friction block is in contact with the protective film, the first compression spring is in a compressed state, and the first compression spring exerts a downward force on the friction block, thereby adjusting the pressure of the friction block to press the protective film. Force, manually rotate the threaded sleeve, so that the threaded sleeve moves vertically relative to the screw rod, and then adjust the height of the movable plate, thereby adjusting the initial distance between the movable plate and the friction block, and can adjust the initial length of the first compression spring, and then can Adjust the strength of each friction block to press the protective film;

(4) The positioning rod runs through the corresponding positioning slot, and one end of the insert block is inserted into the slot, and the position of the first fixing ring is limited by the positioning rod to prevent the first fixing ring from rotating relative to the screw rod, thereby avoiding the rotation process of the screw rod , the threaded sleeve rotates relative to the screw, and the connecting frame is manually driven to move down, so that the movable ring moves down relative to the second fixed ring, the second compression spring is in a compressed state, the connecting frame is no longer in contact with the positioning rod, and the position of the positioning rod is released. Manually drive the positioning rod to move away from the first fixing ring, so that the positioning rod is out of the positioning slot, and the insert is out of the slot, and the restriction on the position of the first fixing ring can be released, so that the first fixing ring and the threaded sleeve can be Rotate relative to the screw rod, when the threaded sleeve does not need to be rotated, drive the positioning rod again to move, insert the insert into the corresponding slot, and the positioning rod penetrates the positioning slot, limit the position of the first fixed ring and the threaded sleeve, and loosen the connecting frame , the second compression spring drives the movable ring to move up, so that the connecting frame moves to one side of the positioning rod, the connecting frame limits the position of the positioning rod, and prevents the positioning rod from moving away from the first fixed ring, and the connection between the threaded sleeve and the screw rod can be completed. fixed between.

Description of drawings

The accompanying drawings are used to provide a further understanding of the present invention, and constitute a part of the description, and are used together with the embodiments of the present invention to explain the present invention, and do not constitute a limitation to the present invention.

In the attached picture:

Fig. 1 is a schematic diagram of the overall structure of the present invention;

Fig. 2 is the structural representation of horizontal movement unit of the present invention;

Fig. 3 is one of structural representations of synchronous driving mechanism of the present invention;

Fig. 4 is the second structural diagram of the synchronous drive mechanism of the present invention;

Fig. 5 is a schematic diagram of a partially enlarged structure at A in Fig. 4;

Fig. 6 is a schematic structural view of the elastic force adjustment assembly of the present invention;

Fig. 7 is a schematic diagram of a partially enlarged structure at place B in Fig. 6;

Fig. 8 is a schematic structural view of the fixing base of the present invention.

In the figure: 1. Test bench; 2. Clamping ring; 3. Lifting seat; 4. First electric telescopic rod; 5. Screw rod; 6. Friction block; 7. Fixed seat; 8. Movable column; 9. Limit 10, the first rectangular hole; 11, the movable seat; 12, the first bearing; 13, the first bevel gear; 14, the first fixed plate; 15, the rotating sleeve; 16, the second bearing; 17, the first Two bevel gears; 18, the first rotating shaft; 19, the protective shell; 20, the pressing plate; 21, the positioning column; 22, the first connecting plate; 23, the second rectangular hole; 24, the support plate; 25, the first slide block; 26, the second slider; 27, movable sleeve; 28, the second electric telescopic rod; 29, the second connecting plate; 30, the slide plate; 31, the limit groove; 32, the limit plate; 33, the first roller ; 34, the second roller; 35, the first guide groove; 36, the first guide block; 37, the second guide groove; 38, the second guide block; 39, the third connecting plate; 40, the limit column; 41, The third bevel gear; 42, the third bearing; 43, the second fixed plate; 44, the fourth bearing; 45, the second rotating shaft; 46, the motor; 47, the fourth bevel gear; 48, the third fixed plate; 49. Fifth bearing; 50. Thread sleeve; 51. Movable disc; 52. First compression spring; 53. Sixth bearing; 54. First fixed ring; 55. Positioning slot; 56. Positioning rod; 57. Insert ; 58, a slot; 59, a connecting frame; 60, a movable ring; 61, a second fixed ring; 62, a second compression spring.

detailed description

The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some of the embodiments of the present invention, not all of them; based on The embodiments of the present invention and all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

Embodiment 1, given by Fig. 1 to Fig. 8, the present invention comprises a test bench 1, the top of the test bench 1 is provided with a clamping ring 2, the clamping ring 2 and the test bench 1 are connected by a vertical slide, and the clamping ring 2 is provided with a lifting seat 3, and the lifting seat 3 and the test bench 1 are connected by a plurality of first electric telescopic rods 4, and a plurality of screw rods 5 are arranged below the lifting seat 3, and a friction block 6 is provided below the screw mandrel 5. The outside of the rod 5 is provided with a fixed seat 7 that is fixedly connected. Two movable columns 8 are fixedly connected to the friction block 6. The movable column 8 runs through the fixed seat 7, and the top of the movable column 8 is connected to the limit position on the top of the fixed seat 7. The disk 9 is fixedly connected, the screw rod 5 and the friction block 6 are connected through an elastic force adjustment assembly, and the lifting seat 3 is provided with a plurality of first rectangular holes 10, and a movable seat 11 is arranged in the first rectangular hole 10, and the screw rod 5 runs through the movable seat 11 , the connection between the screw mandrel 5 and the movable seat 11 is provided with a first bearing 12, the movable seat 11 and the lifting seat 3 are connected by the first guide unit, the top of the screw mandrel 5 is fixedly connected with the first bevel gear 13, the lifting seat 3 The top of the movable seat 11 is fixedly connected with a protective shell 19, the protective shell 19 is a cavity structure with an open bottom, the top of the movable seat 11 is fixedly connected with a first fixed plate 14, and one side of the first fixed plate 14 is provided with a rotating sleeve 15, which rotates The sleeve 15 runs through the first fixed plate 14, the second bearing 16 is provided at the penetration of the rotating sleeve 15 and the first fixed plate 14, and the outer sleeve of the rotating sleeve 15 is provided with a second bevel gear 17 that is fixedly connected. The gear 17 is meshed with the first bevel gear 13, the first rotating shaft 18 is arranged in the rotating sleeve 15, the rotating sleeve 15 and the first rotating shaft 18 are connected through the second guide unit, and the protective shell 19 is provided with several first rotating shafts. 18 is connected with a synchronous driving mechanism matched with each other, and a synchronous pressing assembly matched with the clamping ring 2 and the first fixing plate 14 is provided on the test bench 1 respectively.

Embodiment 2, on the basis of Embodiment 1, as shown in Fig. 1, Fig. 2, Fig. 4, Fig. 5, Fig. 6 and Fig. 7, the synchronous pressing assembly includes a first connection fixedly installed on the top of the first fixing plate 14 Plate 22, the top inner wall of the protective shell 19 is provided with a number of second rectangular holes 23, the first connecting plate 22 runs through the second rectangular holes 23, the top of the protective shell 19 is provided with a pressing plate 20, and the bottom of the pressing plate 20 is provided with several supports plate 24, the first connecting plate 22 and the support plate 24 are fixedly connected, the top of the protective shell 19 is fixedly connected with a number of positioning columns 21, the positioning columns 21 run through the pressing plate 20, and the two sides of the clamping ring 2 are respectively fixedly connected with the first slide Block 25, the both sides of pressing plate 20 are respectively fixedly connected with the second slide block 26, and the cross-section of the first slide block 25 and the second slide block 26 is right triangle structure, and one side of the first slide block 25 is provided with movable Cover 27, movable cover 27 and test bench 1 are connected by horizontal moving unit, and one side of movable cover 27 is provided with some first rollers 33, and first roller 33 and movable cover 27 are rotationally connected, and one side of second slide block 26 is provided with There is a slide plate 30, one side of the slide plate 30 is provided with a number of second rollers 34, the second rollers 34 are connected to the slide plate 30 in rotation, the bottom end of the slide plate 30 is plugged into the movable sleeve 27, and the two sides of the lift seat 3 are respectively provided with limited positions. Groove 31, slide plate 30 is fixedly connected with limiting plate 32, and one end of limiting plate 32 is plugged in limiting groove 31, and horizontal movement unit comprises the second connecting plate 29 that is arranged on movable sleeve 27 one side, and the second connecting The bottom of the plate 29 is fixedly connected to the top of the test bench 1, the second connecting plate 29 and the movable sleeve 27 are connected through the second electric telescopic rod 28, and the vertical slide includes several third connecting plates fixedly installed on the clamping ring 2 39. A number of limit columns 40 are fixedly connected to the test bench 1, and the limit columns 40 run through the third connecting plate 39. The first guide unit includes first guide blocks 36 symmetrically arranged on both sides of the movable seat 11. The first guide The block 36 is fixedly connected with the movable seat 11, and the inner walls of both sides of the first rectangular hole 10 are respectively provided with a first guide groove 35, the first guide block 36 is located in the first guide groove 35, and the second guide unit includes two fixedly mounted on The second guide block 38 on the inner wall of the rotating sleeve 15 has two second guide grooves 37 on the first rotating shaft 18, and the second guide block 38 is located in the second guide groove 37;

The friction block 6 is manually driven to move horizontally, so that the screw mandrel 5 drives the movable seat 11 to slide in the first rectangular hole 10, and the position of the friction block 6 is changed. Through the cooperation of the first guide block 36 and the first guide groove 35, the The movable seat 11 slides smoothly in the first rectangular hole 10, and at the same time, the first fixed plate 14 drives the rotating sleeve 15 to move horizontally, the second guide block 38 slides in the second guide groove 37, and the position of the friction block 6 is adjusted , the clamping ring 2 is manually driven to move up, so that the protective film to be tested is placed between the test bench 1 and the clamping ring 2, the clamping ring 2 is released, the clamping ring 2 presses the protective film, and passes through the third connecting plate 39 And the design of the limit column 40 makes the clamping ring 2 move smoothly in the vertical direction, drives the movable sleeve 27 to move in the horizontal direction through the second electric telescopic rod 28, and then makes the first roller 33 correspond to the inclined surface of the first slider 25 Contact, apply downward pressure to the first slider 25, and then make the clamping ring 2 and the test bench 1 clamp the protective film to complete the fixing of the protective film. During the movement of the movable sleeve 27, the movable sleeve 27 drives the slide plate 30 Move, one end of the limiting plate 32 slides in the limiting groove 31, and the second roller 34 is in contact with the inclined surface of the second slider 26, exerts a downward force on the second slider 26, and the pressing plate 20 presses the support plate 24, and then the movable seat 11 is fixed relative to the lifting seat 3, and the fixing of the position of the friction block 6 is completed. The first electric telescopic rod 4 drives the lifting seat 3 to move down, and the slide plate 30 slides relative to the movable sleeve 27. The friction block 6 and the protective film In contact with each other, the synchronous driving mechanism drives several first rotating shafts 18 to rotate, and the first rotating shaft 18 drives the second guide block 38 and the rotating sleeve 15 to rotate, so that the second bevel gear 17 drives the first bevel gear 13 to rotate, that is The screw rod 5 can drive the friction block 6 to rotate, and the protective film can be tested through the friction block 6, which is convenient for adjusting the position of each friction block 6 according to actual needs. Through the design of a synchronous driving mechanism, several friction blocks can be made The block 6 rotates synchronously, which reduces the cost and facilitates wiring.

Embodiment 3, on the basis of Embodiment 1, given by Figure 3 and Figure 4, the synchronous drive mechanism includes a third bevel gear 41 fixedly installed on one end of the first rotating shaft 18, the other end of the first rotating shaft 18 and the guard One side of the inner wall of the shell 19 is connected by a third bearing 42, and a plurality of second fixed plates 43 are fixedly connected on the lifting base 3, the first rotating shaft 18 runs through the second fixed plate 43, and the penetration of the first rotating shaft 18 and the second fixed plate 43 A fourth bearing 44 is provided at the place, and a motor 46 is fixedly connected to the inner wall of the protective case 19. The output end of the motor 46 is fixedly connected to a second rotating shaft 45, and a plurality of fixedly connected fourth cones are set outside the second rotating shaft 45. Gear 47, the 4th bevel gear 47 and the 3rd bevel gear 41 meshing, the second rotating shaft 45 is provided with the 3rd fixed plate 48 away from the end of motor 46, the 3rd fixed plate 48 is fixedly connected with lift seat 3, the second The rotating shaft 45 is connected with the third fixed plate 48 through the fifth bearing 49;

The motor 46 drives the second rotating shaft 45 to rotate, and then the fourth bevel gear 47 rotates. Through the cooperation between the fourth bevel gear 47 and the third bevel gear 41, when the fourth bevel gear 47 rotates, the fourth bevel gear 47 is rotated. The bevel gear 47 drives the third bevel gear 41 to rotate, thereby making several first rotating shafts 18 rotate synchronously. Through the design of the third fixed plate 48 and the fifth bearing 49, one end of the second rotating shaft 45 is rotationally connected to the lifting base 3 , to reduce the possibility of tilting and shaking during the rotation of the second rotating shaft 45 .

Embodiment 4, on the basis of Embodiment 1, shown in Figure 6, Figure 7 and Figure 8, the elastic force adjustment assembly includes a threaded sleeve 50 arranged between the fixed seat 7 and the friction block 6, and the threaded sleeve 50 is sleeved Outside the screw rod 5, a movable disc 51 is provided between the threaded sleeve 50 and the friction block 6, the movable disc 51 and the friction block 6 are connected by the first compression spring 52, and the threaded sleeve 50 and the movable disc 51 are connected by the sixth bearing 53 , and the movable column 8 runs through the movable disc 51, the threaded sleeve 50 and the movable column 8 are connected by a rotation locking mechanism, and the rotation locking mechanism includes a first fixed ring 54 sleeved outside the threaded sleeve 50, the first fixed ring 54 and the screw thread The sleeve 50 is fixedly connected, the first fixed ring 54 is provided with a plurality of positioning grooves 55, one side of the fixed seat 7 is provided with a plug-in block 57, and the fixed seat 7 is provided with a slot 58, and one end of the plug-in block 57 is inserted into the slot 58, the bottom of the plug 57 is fixedly connected with a positioning rod 56, and the positioning rod 56 runs through one of the corresponding positioning grooves 55, and one side of the positioning rod 56 is provided with a connecting frame 59, and the connecting frame 59 and the positioning rod 56 are in contact. The connecting frame 59 and the two movable columns 8 are connected by an elastic slider. The elastic slider includes a movable ring 60 and a second fixed ring 61 sleeved on the outside of the movable column 8. The second fixed ring 61 is located below the movable ring 60, and The second fixed ring 61 is fixedly connected with the movable column 8, and the two ends of the connecting frame 59 are respectively fixedly connected with the two movable rings 60, and the outside of the movable column 8 is provided with a second compression spring 62, and the two ends of the second compression spring 62 respectively fixedly connected with the movable ring 60 and the second fixed ring 61;

During the downward movement of the screw mandrel 5, the friction block 6 is in contact with the protective film, the first compression spring 52 is in a compressed state, and the first compression spring 52 exerts a downward force on the friction block 6, thereby adjusting the pressure protection of the friction block 6 The strength of the film, manually rotating the threaded sleeve 50, makes the threaded sleeve 50 move vertically relative to the screw rod 5, and then adjusts the height of the movable plate 51, thereby adjusting the initial distance between the movable plate 51 and the friction block 6, and can adjust the first Compress the initial length of the spring 52, and then can adjust the strength of each friction block 6 to press the protective film. The positioning rod 56 runs through the corresponding positioning groove 55, and one end of the insert block 57 is inserted in the slot 58, and the positioning rod 56 limits the first position. The position of a fixed ring 54 prevents the first fixed ring 54 from rotating relative to the screw mandrel 5, thereby avoiding the rotation of the screw mandrel 50 relative to the screw mandrel 5 during the rotation of the screw mandrel 5, and manually driving the connecting frame 59 to move down so that the movable ring 60 is relatively opposite to the screw mandrel 5. The second fixed ring 61 moves down, the second compression spring 62 is in a compressed state, the connecting frame 59 is no longer in contact with the positioning rod 56, the limit to the position of the positioning rod 56 is released, and the positioning rod 56 is manually driven away from the first fixed ring 54 Move so that the positioning rod 56 breaks away from the positioning groove 55, and the plug 57 breaks away from the slot 58, then the restriction on the position of the first fixing ring 54 can be released, so that the first fixing ring 54 and the threaded sleeve 50 can rotate relative to the screw mandrel 5, When the threaded sleeve 50 does not need to be rotated, the positioning rod 56 is driven again to move, the plug 57 is inserted into the corresponding slot 58, and the positioning rod 56 runs through the positioning groove 55 to limit the position of the first fixed ring 54 and the threaded sleeve 50, loosen Open the connecting frame 59, the second compression spring 62 drives the movable ring 60 to move up, so that the connecting frame 59 moves to one side of the positioning rod 56, the connecting frame 59 limits the position of the positioning rod 56, and prevents the positioning rod 56 from being away from the first fixed ring 54 moves, and the fixing between the threaded sleeve 50 and the screw mandrel 5 can be completed.

Working principle: when working, the friction block 6 is manually driven to move in the horizontal direction, so that the screw rod 5 drives the movable seat 11 to slide in the first rectangular hole 10, changing the position of the friction block 6, through the first guide block 36 and the first guide The cooperation of the groove 35 makes the movable seat 11 slide smoothly in the first rectangular hole 10, while the first fixed plate 14 drives the rotating sleeve 15 to move horizontally, the second guide block 38 slides in the second guide groove 37, and the friction block After the position adjustment of 6 is completed, manually drive the clamping ring 2 to move up, so that the protective film to be tested is placed between the test bench 1 and the clamping ring 2, loosen the clamping ring 2, and the clamping ring 2 presses the protective film. Through the design of the third connecting plate 39 and the limit post 40, the clamping ring 2 can move smoothly in the vertical direction, and the movable sleeve 27 is driven to move in the horizontal direction through the second electric telescopic rod 28, so that the first roller 33 and the first roller 33 can move horizontally. The inclined surfaces of the sliders 25 are in contact, and a downward pressure is applied to the first slider 25, so that the clamping ring 2 and the test bench 1 clamp the protective film to complete the fixing of the protective film. During the movement of the movable sleeve 27, The movable sleeve 27 drives the sliding plate 30 to move, and one end of the limiting plate 32 slides in the limiting groove 31, and the second roller 34 is in contact with the inclined surface of the second sliding block 26, applying a downward force to the second sliding block 26, The pressing plate 20 presses the supporting plate 24, and then the movable seat 11 is fixed relative to the lifting seat 3, and the fixing of the position of the friction block 6 is completed. The first electric telescopic rod 4 drives the lifting seat 3 to move down, and the slide plate 30 slides relative to the movable sleeve 27. The friction block 6 is in contact with the protective film, and the synchronous drive mechanism drives several first rotating shafts 18 to rotate, and the first rotating shaft 18 drives the second guide block 38 and the rotating sleeve 15 to rotate, so that the second bevel gear 17 drives the first bevel The rotation of the shaped gear 13 can make the screw rod 5 drive the friction block 6 to rotate, and the protective film can be tested through the friction block 6, which is convenient for adjusting the position of each friction block 6 according to actual needs. Through the design of a synchronous driving mechanism, That is to say, several friction blocks 6 rotate synchronously, which reduces the cost and facilitates wiring. The motor 46 drives the second rotating shaft 45 to rotate, thereby making the fourth bevel gear 47 rotate. Through the fourth bevel gear 47 and the third bevel gear The cooperation of the gear 41, when the fourth bevel gear 47 rotates, makes the fourth bevel gear 47 drive the third bevel gear 41 to rotate, and then makes several first rotating shafts 18 rotate synchronously, through the third fixed plate 48 and the fifth The bearing 49 is designed so that one end of the second rotating shaft 45 is rotationally connected to the lifting seat 3, reducing the possibility of tilting and shaking during the rotation of the second rotating shaft 45. During the downward movement of the screw mandrel 5, the friction block 6 is in contact with the protective film. The first compression spring 52 is in a compressed state, and the first compression spring 52 exerts a downward force on the friction block 6, thereby adjusting the strength with which the friction block 6 presses the protective film, and manually rotating the threaded sleeve 50 so that the threaded sleeve 50 is opposite to the screw mandrel 5 Move in the vertical direction, and then adjust the height of the movable disc 51, thereby adjusting the initial distance between the movable disc 51 and the friction block 6, and the initial distance of the first compression spring 52 can be adjusted. The initial length, and then can adjust the strength of each friction block 6 to press the protective film, the positioning rod 56 runs through the corresponding positioning groove 55, and one end of the insert block 57 is inserted into the slot 58, and the first fixing ring 54 is limited by the positioning rod 56 position to prevent the first fixed ring 54 from rotating relative to the screw mandrel 5, thereby preventing the threaded sleeve 50 from rotating relative to the screw mandrel 5 during the rotation of the screw mandrel 5, and manually driving the connecting frame 59 to move down, so that the movable ring 60 is relative to the second fixed ring 61 moves down, the second compression spring 62 is in a compressed state, and the connecting frame 59 is no longer in contact with the positioning rod 56, and the limit to the position of the positioning rod 56 is released, and the positioning rod 56 is manually driven to move away from the first fixed ring 54, so that the positioning Rod 56 disengages from positioning groove 55, and insert block 57 disengages from slot 58, can release the limitation to the position of first fixing ring 54, makes first fixing ring 54 and threaded sleeve 50 can rotate relative to screw mandrel 5, does not need to rotate screw thread When cover 50, drive positioning bar 56 to move again, plug block 57 is inserted in the corresponding slot 58, and positioning bar 56 runs through positioning groove 55, the position of limit first fixing ring 54 and threaded sleeve 50, unclamp connecting frame 59 , the second compression spring 62 drives the movable ring 60 to move up, so that the connecting frame 59 moves to one side of the positioning rod 56, the connecting frame 59 limits the position of the positioning rod 56, and prevents the positioning rod 56 from moving away from the first fixed ring 54, that is The fixing between the threaded sleeve 50 and the screw mandrel 5 can be completed.

It should be noted that in this article, relational terms such as first and second are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply that there is a relationship between these entities or operations. any such actual relationship or order exists between them. Furthermore, the term "comprises", "comprises" or any other variation thereof is intended to cover a non-exclusive inclusion such that a process, method, article, or apparatus comprising a set of elements includes not only those elements, but also includes elements not expressly listed. other elements of or also include elements inherent in such a process, method, article, or apparatus.

Although the embodiments of the present invention have been shown and described, those skilled in the art can understand that various changes, modifications and substitutions can be made to these embodiments without departing from the principle and spirit of the present invention. and modifications, the scope of the invention is defined by the appended claims and their equivalents.

Claims (10)

1. An automatic test device for wear resistance of protective film, including a test bench (1), characterized in that: the top of the test bench (1) is provided with a clamping ring (2), the clamping ring (2) and the test The table (1) is connected by a vertical slide, and the lifting seat (3) is arranged above the clamping ring (2), and the lifting seat (3) and the test table (1) are connected by a number of first electric telescopic rods (4), A number of screw rods (5) are arranged under the lifting seat (3), friction blocks (6) are arranged under the screw rod (5), and a fixed seat (7) for fixed connection is provided on the outside of the screw rod (5). Two movable columns (8) are fixedly connected on the friction block (6), the movable columns (8) run through the fixed seat (7), and the top of the movable column (8) is connected with the limit plate ( 9) Fixed connection, the screw rod (5) and the friction block (6) are connected through the elastic adjustment component, and there are several first rectangular holes (10) on the lifting seat (3), and there are movable holes (10) in the first rectangular holes (10). Seat (11), screw mandrel (5) run through movable seat (11), and the junction of screw mandrel (5) and movable seat (11) is provided with the first bearing (12), movable seat (11) and lifting seat (3 ) through the first guide unit, the top of the screw rod (5) is fixedly connected with the first bevel gear (13), the top of the lifting seat (3) is fixedly connected with the protective shell (19), and the protective shell (19) is the bottom Open end cavity structure, the top of the movable seat (11) is fixedly connected with the first fixed plate (14), one side of the first fixed plate (14) is provided with a rotating sleeve (15), and the rotating sleeve (15) runs through the second A fixed plate (14), a second bearing (16) is provided at the penetration of the rotating sleeve (15) and the first fixed plate (14), and a second bevel gear that is fixedly connected is provided on the outer sleeve of the rotating sleeve (15) (17), the second bevel gear (17) is meshed with the first bevel gear (13), the first rotating shaft (18) is arranged in the rotating sleeve (15), the rotating sleeve (15) and the first rotating shaft (18 ) are connected through the second guide unit, the protective shell (19) is equipped with a synchronous drive mechanism that matches with several first rotating shafts (18), and the test bench (1) is equipped with the clamping ring (2) and A synchronous pressing assembly matched with the first fixing plate (14). 2. An automatic testing device for wear resistance of protective film according to claim 1, characterized in that: the synchronous pressing assembly includes a first connecting plate (22) fixedly installed on the top of the first fixing plate (14), The top inner wall of the protective case (19) is provided with several second rectangular holes (23), the first connecting plate (22) runs through the second rectangular holes (23), and a pressing plate (20) is provided above the protective case (19), The bottom of the pressing plate (20) is provided with several supporting plates (24), the first connecting plate (22) is fixedly connected with the supporting plate (24), and the top of the protective shell (19) is fixedly connected with several positioning columns (21), positioning The column (21) runs through the pressing plate (20), the first sliding block (25) is fixedly connected to both sides of the clamping ring (2), and the second sliding block (26) is fixedly connected to both sides of the pressing plate (20). ), the cross-sections of the first slider (25) and the second slider (26) are right-angled triangle structures, and one side of the first slider (25) is provided with a movable sleeve (27), and the movable sleeve (27) and The test bench (1) is connected by a horizontal moving unit, and one side of the movable sleeve (27) is provided with several first rollers (33), the first rollers (33) and the movable sleeve (27) are rotationally connected, and the second slider (26 ) is provided with a slide plate (30), one side of the slide plate (30) is provided with several second rollers (34), the second rollers (34) and the slide plate (30) are rotationally connected, and the bottom end of the slide plate (30) is inserted into Connected in the movable sleeve (27), the two sides of the lifting seat (3) are respectively provided with limiting slots (31), the sliding plate (30) is fixedly connected with the limiting plate (32), and one end of the limiting plate (32) is inserted into the connected to the limit slot (31). 3. An automatic testing device for protective film wear resistance according to claim 2, characterized in that: the horizontal moving unit includes a second connecting plate (29) arranged on one side of the movable sleeve (27), the second The bottom of the connecting plate (29) is fixedly connected with the top of the test bench (1), and the second connecting plate (29) is connected with the movable sleeve (27) through the second electric telescopic rod (28). 4. An automatic testing device for abrasion resistance of protective film according to claim 1, characterized in that: said vertical sliding member includes several third connecting plates (39) fixedly installed on the clamping ring (2) , a number of limiting columns (40) are fixedly connected to the test platform (1), and the limiting columns (40) run through the third connecting plate (39). 5. An automatic testing device for protective film wear resistance according to claim 1, characterized in that: the first guide unit includes first guide blocks (36) symmetrically arranged on both sides of the movable seat (11), The first guide block (36) is fixedly connected with the movable seat (11), and the inner walls on both sides of the first rectangular hole (10) are respectively provided with first guide grooves (35), and the first guide block (36) is located in the first guide groove (35), the second guide unit includes two second guide blocks (38) fixedly installed on the inner wall of the rotating sleeve (15), and two second guide grooves (37) are opened on the first rotating shaft (18), And the second guide block (38) is located in the second guide groove (37). 6. An automatic test device for wear resistance of protective film according to claim 1, characterized in that: the synchronous drive mechanism includes a third bevel gear (41) fixedly installed at one end of the first rotating shaft (18), The other end of the first rotating shaft (18) is connected with the inner wall of one side of the protective shell (19) through the third bearing (42), and several second fixing plates (43) are fixedly connected on the lifting seat (3), and the first rotating shaft ( 18) Through the second fixed plate (43), the fourth bearing (44) is provided at the penetration of the first rotating shaft (18) and the second fixed plate (43), and the motor ( 46), the output end of the motor (46) is fixedly connected with the second rotating shaft (45), and the outer sleeve of the second rotating shaft (45) is provided with a number of fixedly connected fourth bevel gears (47), the fourth bevel gear ( 47) meshes with the third bevel gear (41). 7. An automatic testing device for protective film wear resistance according to claim 6, characterized in that: the end of the second rotating shaft (45) away from the motor (46) is provided with a third fixing plate (48), the second The three fixed plates (48) are fixedly connected with the lifting seat (3), and the second rotating shaft (45) is connected with the third fixed plate (48) through the fifth bearing (49). 8. An automatic testing device for protective film wear resistance according to claim 1, characterized in that: the elastic force adjustment assembly includes a threaded sleeve (50) arranged between the fixed seat (7) and the friction block (6) ), and the threaded sleeve (50) is sleeved on the outside of the screw rod (5), a movable disc (51) is provided between the threaded sleeve (50) and the friction block (6), and the movable disc (51) and the friction block (6 ) is connected through the first compression spring (52), the threaded sleeve (50) and the movable disc (51) are connected through the sixth bearing (53), and the movable column (8) runs through the movable disc (51), the threaded sleeve (50) and The movable column (8) is connected by a rotary locking mechanism. 9. An automatic test device for wear resistance of protective film according to claim 8, characterized in that: the rotation locking mechanism includes a first fixing ring (54) sleeved outside the threaded sleeve (50), the second A fixed ring (54) is fixedly connected with the threaded sleeve (50). The first fixed ring (54) is provided with a number of positioning grooves (55). One side of the fixed seat (7) is provided with an insert (57). The fixed seat (7) is provided with a slot (58), and one end of the plug (57) is inserted into the slot (58), and the bottom of the plug (57) is fixedly connected with a positioning rod (56), and the positioning rod (56 ) runs through one of the corresponding positioning slots (55), one side of the positioning rod (56) is provided with a connecting frame (59), the connecting frame (59) contacts with the positioning rod (56), and the connecting frame (59) and two The movable columns (8) are connected by elastic sliders. 10. An automatic testing device for wear resistance of protective film according to claim 8, characterized in that: the rotation locking mechanism includes a first fixing ring (54) sleeved outside the threaded sleeve (50), the second A fixed ring (54) is fixedly connected with the threaded sleeve (50). The first fixed ring (54) is provided with a number of positioning grooves (55). One side of the fixed seat (7) is provided with an insert (57). The fixed seat (7) is provided with a slot (58), and one end of the plug (57) is inserted into the slot (58), and the bottom of the plug (57) is fixedly connected with a positioning rod (56), and the positioning rod (56 ) runs through one of the corresponding positioning slots (55), one side of the positioning rod (56) is provided with a connecting frame (59), the connecting frame (59) contacts with the positioning rod (56), and the connecting frame (59) and two The movable columns (8) are connected by elastic sliders.

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