CN217554287U

CN217554287U - Glass film sticking machine

Info

Publication number: CN217554287U
Application number: CN202221608747.1U
Authority: CN
Inventors: 李青; 李赫然; 柯美宏; 李盛印; 殷东旭
Original assignee: Sichuan Hongji Optical Glass New Material Technology Co ltd; Beijing Yuanda Xinda Technology Co Ltd
Current assignee: Sichuan Hongji Optical Glass New Material Technology Co ltd; Beijing Yuanda Xinda Technology Co Ltd
Priority date: 2022-06-23
Filing date: 2022-06-23
Publication date: 2022-10-11
Anticipated expiration: 2032-06-23

Abstract

The disclosure relates to a glass sticking film machine, include: a frame body; the lower plate is arranged on the frame body and provided with a first placing area for placing glass, and a first adsorption device for fixing the glass is arranged on the lower plate; a roller movably disposed above the lower plate in an extending direction of the lower plate; and one end of the upper plate is hinged with the frame body so as to be turned over towards the direction close to and far away from the lower plate, a second placing area for placing the membrane is arranged on the upper plate, a second adsorption device for fixing the membrane is arranged on the upper plate, and the length of the second placing area is smaller than that of the membrane so that one end of the membrane can protrude out of the upper plate and the rolling shaft can press the membrane before the membrane is separated from the upper plate. This glass places on the hypoplastron and fixes through first adsorption equipment, and the roller bearing setting is on the hypoplastron, and diaphragm protrusion is placed on the upper plate and is fixed through second adsorption equipment in the upper plate, and after upper plate and hypoplastron laminating, the roller bearing pushes down the diaphragm before the diaphragm breaks away from the upper plate, makes the diaphragm not follow the upper plate and removes, accurate location.

Description

Glass film sticking machine

Technical Field

The disclosure relates to the technical field of film sticking devices, in particular to a glass film sticking machine.

Background

In the glass production industry, glass laminating films of various sizes need to be laminated with glass by laminating equipment. Along with market to the constantly increase of all kinds of size glass demand, market development glass size's diversification, original laminating equipment laminating gyro wheel sets up on the upper plate, and when the diaphragm was placed on the upper plate, easily dropped at the upset in-process, and diaphragm laminating precision is uncontrollable simultaneously.

SUMMERY OF THE UTILITY MODEL

The disclosed purpose provides a glass sticking film machine, and this glass sticking film machine can solve above-mentioned problem.

In order to achieve the above object, the present disclosure provides a glass film laminating machine, comprising: a frame body; the lower plate is arranged on the frame body and provided with a first placing area for placing glass, and a first adsorption device for fixing the glass is arranged on the lower plate; a roller movably disposed above the lower plate in an extending direction of the lower plate; and one end of the upper plate is hinged with the frame body so as to be turned over towards the direction close to and far away from the lower plate, a second placing area used for placing the membrane and corresponding to the first placing area is arranged on the upper plate, a second adsorption device used for fixing the membrane is arranged on the upper plate, and the length of the second placing area is smaller than that of the membrane so that the end, far away from the hinged end of the upper plate, of the membrane can protrude out of the upper plate, so that the roller can press the membrane before the membrane is separated from the upper plate.

Optionally, the roller has an initial position away from the upper plate and a stop position close to the upper plate after the completion of the primary rolling, and the roller is reciprocally disposed between the initial position and the stop position so as to roll the glass and the membrane for a second time when the roller is reset from the stop position to the initial position.

Optionally, the roller is connected with a driving device to make the roller move back and forth along the extending direction of the lower plate.

Optionally, the support body is including installing the upper plate reaches the mounting panel and the interval setting of hypoplastron are in the bottom plate of mounting panel below, the roller bearing is installed through first fixing device the top of hypoplastron, first fixing device include two respectively with the roller bearing both ends rotate the first fixed plate of connection and set up the mounting panel below and with two first connecting plate that first fixed plate all is connected, two first fixed plate sets up respectively the both sides of mounting panel and with mounting panel sliding connection, drive arrangement's drive end with hypoplastron parallel arrangement and with first connecting plate is connected.

Optionally, the upper plate is slidably connected to the frame body through a second fixing device, a connecting mechanism is arranged between the upper plate and the roller to enable the upper plate and the roller to move synchronously, and the upper plate is attached to the lower plate when the roller moves from the initial position to the stop position.

Optionally, the connecting mechanism is configured as an elastic mechanism, the elastic mechanism is disposed parallel to the moving direction of the upper plate, one end of the elastic mechanism is connected to the second fixing device, and the other end of the elastic mechanism abuts against the first fixing device to assist the roller to return to the initial position.

Optionally, the upper plate is hinged to the frame body through a second fixing device, the second fixing device includes two second fixing plates which are rotatably connected to two ends of a hinge shaft of the upper plate respectively and slidably connected to the mounting plate, and a second connecting plate which is disposed below the mounting plate and connected to the two second fixing plates, the connecting mechanism includes a support rod, a spring, a top block, and a connecting plate, one end of the support rod is connected to the second connecting plate, the other end of the support rod penetrates through the first connecting plate, the top block is fixedly disposed on the support rod, and the top block abuts against one side of the first connecting plate close to the second connecting plate, so that the roller moves to the stop position and drives the upper plate to move synchronously, one end of the spring is connected to the top block, and the other end of the connecting plate is connected to the first connecting plate and the second connecting plate, so that the roller drives the upper plate to reset when moving to the initial position.

Optionally, the drive device is configured as a first telescopic cylinder.

Optionally, the upper plate is connected with the frame body in a sliding manner through a second fixing device, a second telescopic cylinder is connected to the second fixing device so as to enable the second telescopic cylinder to move synchronously with the second fixing device, the second telescopic cylinder enables the upper plate to be folded along the hinged end of the upper plate through a transmission device, a driving rod of the second telescopic cylinder stretches out and drives the upper plate to be close to the lower plate, and the driving rod of the second telescopic cylinder retracts to drive the upper plate to be far away from the lower plate.

Optionally, the transmission device includes a driven gear connected to the hinge shaft of the upper plate, a rack connected to the driving rod of the second telescopic cylinder, and a transmission gear engaged with both the driven gear and the rack, and the transmission gear is configured to change a rotation direction of the driven gear.

Through above-mentioned technical scheme, glass places on the hypoplastron and fixes through first adsorption equipment, and the roller bearing setting is on the hypoplastron, and diaphragm protrusion is placed on the upper plate and is fixed through second adsorption equipment in the upper plate, and after upper plate and hypoplastron laminating, the roller bearing is pushed down the diaphragm before the diaphragm breaks away from the upper plate, can make the diaphragm not follow the upper plate and remove, accurate location.

Additional features and advantages of the disclosure will be set forth in the detailed description which follows.

Drawings

The accompanying drawings, which are included to provide a further understanding of the disclosure and are incorporated in and constitute a part of this specification, illustrate embodiments of the disclosure and together with the description serve to explain the disclosure, but do not constitute a limitation of the disclosure. In the drawings:

FIG. 1 is a schematic structural view of a glass film laminator according to the present disclosure;

FIG. 2 is a diagram of a state of use of the glass film laminator according to the present disclosure;

FIG. 3 is a top view of a glass film laminator of the present disclosure;

fig. 4 is a schematic structural view of a transmission according to the present disclosure.

Description of the reference numerals

1. A lower plate; 101. a first adsorption device; 2. an upper plate; 201. a second adsorption device; 3. glass; 4. a membrane; 5. a roller; 6. a first fixing device; 61. a first fixing plate; 62. a first connecting plate; 7. a second fixing device; 71. a second fixing plate; 72. a second connecting plate; 8. a connecting mechanism; 81. a top block; 82. a spring; 83. a support bar; 84. connecting sheets; 9. a frame body; 91. mounting a plate; 92. a base plate; 10. a second telescopic cylinder; 11. a drive device; 12. a transmission device; 121. a driven gear; 122. a rack; 123. a transmission gear.

Detailed Description

The following detailed description of specific embodiments of the present disclosure is provided in connection with the accompanying drawings. It should be understood that the detailed description and specific examples, while indicating the present disclosure, are given by way of illustration and explanation only, not limitation.

In this disclosure, unless specified to the contrary, use of directional terms such as "upper, lower, bottom" generally refer to the orientation of fig. 1 and 2, i.e., the actual in-use orientation, "inner, outer" refers to the inner and outer relative to the profile of the component or structure itself. In addition, it should be noted that terms such as "first", "second", and the like are used to distinguish one element from another, and have no order or importance. In addition, in the description with reference to the drawings, the same reference numerals in different drawings denote the same elements.

As shown in fig. 1-4, the present disclosure provides a glass film laminator comprising: a frame body 9; the lower plate 1 is arranged on the frame body 9, for example, horizontally arranged, and has a first placing area for placing the glass 3, and the lower plate 1 is provided with a first adsorption device 101 for fixing the glass 3, for example, the first adsorption device 101 may be a vacuum adsorption device, such as a vacuum tank, connected with a vacuum pump; a roller 5 movably disposed above the lower plate 1 in the extending direction of the lower plate 1; and an upper plate 2, one end of which is hinged to the frame body 9 to be turned over in a direction close to and far away from the lower plate 1, wherein a second placing area for placing the membrane 4 and corresponding to the first placing area is arranged on the upper plate 2, a second adsorption device 201 for fixing the membrane 4 is arranged on the upper plate 2, for example, the second adsorption device 201 can be a vacuum adsorption device, such as a vacuum tank, connected with a vacuum pump, and the length of the second placing area is smaller than that of the membrane 4, so that the end, far away from the hinged end of the upper plate 2, of the membrane 4 can protrude out of the upper plate 2, and the roller 5 is used for pressing the membrane 4 before the membrane 4 is separated from the upper plate 2.

In the previous embodiment, the roller 5 is arranged on the upper plate 2, when the membrane 4 is placed on the upper plate 2, the edge of the membrane 4 needs to be positioned on the roller 5, because the outer wall of the roller 5 protrudes out of the surface of the upper plate 2 so as to roll the glass 3, when the edge of the membrane 4 is positioned on the roller 5, the membrane 4 is in an inclined state, and after the upper plate 2 is turned over, the membrane 4 is normally attached to the glass 3, a part of the membrane 4 cannot be adsorbed by vacuum, and the membrane 4 is easy to drop in the turning process, if the edge of the membrane 4 is not placed on the roller 5, the membrane 4 is easy to move along with the upper plate 2 after the upper plate 2 is separated, and the attaching precision of the membrane 4 cannot be controlled.

In the disclosure, a glass 3 is placed on a lower plate 1 and fixed through a first adsorption device 101, a rolling shaft 5 is arranged on the lower plate 1, a diaphragm 4 protrudes out of an upper plate 2 and is placed on the upper plate 2 and fixed through a second adsorption device 201, after the upper plate 2 is attached to the lower plate 1, the diaphragm 4 corresponds to the glass 3, the rolling shaft 5 presses the diaphragm 4 before the diaphragm 4 is separated from the upper plate 2, the diaphragm 4 can not move along with the upper plate 2 and can be accurately positioned, then the second adsorption device 201 is closed to enable the diaphragm 4 to be separated from the upper plate 2, the upper plate 2 is withdrawn, the rolling shaft 5 moves to enable the glass 3 and the diaphragm 4 to be rolled to enable the diaphragm 4 to be attached to the glass 3.

As an alternative embodiment, as shown in fig. 1 to 3, the roller 5 has an initial position away from the upper plate 2 and a stop position close to the upper plate 2 after completion of the primary rolling, and the roller 5 is reciprocally disposed between the initial position and the stop position to roll the glass 3 and the film 4 a second time when the roller 5 is returned from the stop position to the initial position. The roller 5 finishes primary rolling after moving from the initial position to the stopping position, needs to reset from the stopping position to the initial position after finishing so as to carry out the next operation, and rolls the glass 3 and the membrane 4 for two times while resetting, so that the membrane 4 is attached to the glass 3 more tightly.

Alternatively, the roller 5 is connected to the driving device 11 so that the roller 5 reciprocates in the extending direction of the lower plate 1, and in another embodiment, the driving device 11 may not be provided and the roller 5 may be manually moved.

The driving device 11 may be any device capable of moving the roller 5, such as a hydraulic rod, an electric telescopic rod, and the like, and alternatively, the driving device 11 is configured as a first telescopic cylinder, and the reciprocating motion of the roller 5 is realized by the extension and contraction of a driving rod of the first telescopic cylinder.

The frame 9 includes a mounting plate 91 provided with an upper plate 2 and a lower plate 1 and a bottom plate 92 disposed below the mounting plate 91 at an interval, for example, the mounting plate 91 and the bottom plate 92 are both horizontally disposed, the roller 5 is mounted above the lower plate 1 through a first fixing device 6, a gap for placing the glass 3 and the membrane 4 is left between the roller 5 and the lower plate 1, the first fixing device 6 includes two first fixing plates 61 rotatably connected to two ends of the roller 5 and a first connecting plate 62 disposed below the mounting plate 91 and connected to the two first fixing plates 61, for example, the first fixing plate 61 is perpendicular to the roller 5, the first connecting plate 62 is perpendicular to the first fixing plate 61, the two first fixing plates 61 are disposed on two sides of the mounting plate 91 and slidably connected to the mounting plate 91, the roller 5 can be driven to slide along the extending direction of the lower plate 1 while supporting and fixing the roller 5, the sliding connection can be driven by a sliding connection between a slider and a chute, and also can be driven by a sliding connection of a pulley, a driving end of the driving device 11 is disposed parallel to the lower plate 1 and connected to the first fixing device 92 between the mounting plate 91 and the bottom plate 92, and the driving device is driven by the first fixing device 11.

As an alternative embodiment, as shown in fig. 1-3, the upper plate 2 is slidably connected to the frame 9 through the second fixing device 7, that is, the upper plate 2 is movably connected to the frame 9, a connecting mechanism 8 is provided between the upper plate 2 and the roller 5 to enable the upper plate 2 and the roller 5 to move synchronously, that is, the upper plate 2 and the roller 5 keep the same distance to move synchronously when the roller 5 moves, and the upper plate 2 and the lower plate 1 are attached when the roller 5 moves from the initial position to the stop position. The upper plate 2 and the roller 5 move synchronously, when the roller 5 moves to the stop position, the upper plate 2 is attached to the lower plate 1, if the upper plate 2 does not move along with the roller 5, the upper plate 2 gives way to the roller 5 through turning over before the roller 5 moves, and the turning over of the upper plate 2 needs time, so that the efficiency is low, and the two moving speeds are not high at the same time.

Optionally, the connecting mechanism 8 is configured as an elastic mechanism, the elastic mechanism is disposed parallel to the moving direction of the upper plate 2, one end of the elastic mechanism is connected to the second fixing device 7, and the other end of the elastic mechanism abuts against the first fixing device 6 for assisting the roller 5 to return to the initial position, the unavoidable precision of the driving device 11 decreases after long use, for example, the telescopic cylinder leaks air after long use, which causes the roller 5 not to accurately return to the initial position, and at this time, the elastic mechanism abuts against the first fixing device 6 for assisting the roller 5 to return to the initial position. In other embodiments, the connecting mechanism 8 may also be configured as a connecting rod, both ends of which are connected with the first fixing device 6 and the second fixing device 7, respectively, to move the upper plate 2 and the roller 5 synchronously.

The upper plate 2 is hinged to the frame body 9 through the second fixing device 7, the second fixing device 7 includes two second fixing plates 71 which are rotatably connected to two ends of a hinge shaft of the upper plate 2 and slidably connected to the mounting plate 91, and a second connecting plate 72 which is disposed below the mounting plate 91 and connected to both of the two second fixing plates 71, for example, the fixing plates are disposed perpendicular to the hinge shaft, the second connecting plate 72 is disposed perpendicular to the second fixing plate 71, the connecting mechanism 8 includes a supporting rod 83, a spring 82, a top block 81 and a connecting plate 84, the extending direction of the supporting rod 83 and the spring 82 is the same as the extending direction of the lower plate 1, one end of the supporting rod 83 is connected to the second connecting plate 72, the other end of the supporting rod 83 passes through the first connecting plate 62 but is not connected to the first connecting plate 62, and can be used as a guide rail of the first connecting plate 62, that is, that the connecting mechanism 8 is disposed below the mounting plate 91 and between the mounting plate 91 and the bottom plate 92, the top block 81 is fixedly disposed on the supporting rod 83 and the top block 81 abuts against one side of the first connecting plate 62 close to the second connecting plate 72, so as to drive the upper plate 2 to move to the stop the roller 5 moving synchronously, the supporting rod 83 and the connecting plate 83 to drive the supporting rod 83 to move synchronously with the roller 5; one end of the spring 82 is connected with the ejector block 81, the other end is connected with the connecting sheet 84 which is arranged between the first connecting plate 62 and the second connecting plate 72 and is connected with the mounting plate 91 so as to drive the upper plate 2 to reset when the roller 5 moves to the initial position, because the supporting rod 83 is not connected with the first connecting plate 62, the first connecting plate 62 cannot drive the supporting rod 83 to synchronously move, at the moment, the spring 82 compressed when the roller is moved to the stop position by the first connecting plate 62 stretches out, the supporting rod 83 is driven to move to the initial position through the ejector block 81, and therefore the upper plate 2 is driven to move to the initial position and synchronously move with the roller 5.

As an alternative embodiment, as shown in fig. 3 to 4, the upper plate 2 is slidably connected to the frame body 9 through a second fixing device 7, a second telescopic cylinder 10 is connected to the second fixing device 7 so that the second telescopic cylinder 10 and the second fixing device 7 move synchronously, the second telescopic cylinder 10 enables the upper plate 2 to be folded along its hinged end through a transmission device 12, a driving rod of the second telescopic cylinder 10 extends to drive the upper plate 2 to be folded in a direction close to the lower plate 1, and a driving rod of the second telescopic cylinder 10 retracts to drive the upper plate 2 to be folded in a direction away from the lower plate 1, which is set so that when the upper plate 2 does not work (i.e., the upper plate 2 is located at a position away from the lower plate 1), the driving rod of the second telescopic cylinder 10 is located at a retraction position, so as to prolong a service life of the second telescopic cylinder 10.

Alternatively, as shown in fig. 4, the transmission device 12 includes a driven gear 121 connected to the hinge shaft of the upper plate 2, a rack 122 connected to the driving rod of the second telescopic cylinder 10, and a transmission gear 123 engaged with both the driven gear 121 and the rack 122, where the transmission gear 123 is used to change the rotation direction of the driven gear 121, and the effect that the driving rod of the second telescopic cylinder 10 extends to turn the upper plate 2 toward the lower plate 1 and the driving rod of the second telescopic cylinder 10 retracts to turn the upper plate 2 away from the lower plate 1 is achieved through the steering of the transmission gear 123.

When the device is actually used, the first telescopic cylinder is in an extending state, and the roller 5 is connected to the first telescopic cylinder and is located at an initial position; placing the glass 3 on the lower plate 1, pressing down a vacuum button of the lower plate 1, and fixing the glass 3 on the lower plate 1 by adsorption of a first adsorption device 101; the method comprises the following steps of taking a diaphragm 4, placing the diaphragm 4 on an upper plate 2 and protruding out of the upper plate 2, pressing a vacuum button, adsorbing the diaphragm 4 through a second adsorption device 201, fixing the diaphragm 4 on the upper plate 2, starting a second telescopic cylinder 10, extending a driving rod of the second telescopic cylinder 10 to drive the upper plate 2 to be turned over towards a direction close to a lower plate 1, shrinking the first telescopic cylinder after the diaphragm reaches a fixed position, driving a roller 5 to horizontally move towards a stop position, driving the upper plate 2 and the second telescopic cylinder 10 to synchronously move in the moving process of the roller 5, attaching the diaphragm 4 to glass 3 in the horizontal moving process of the roller 5, shrinking the second telescopic cylinder 10 after the attachment is completed, driving the upper plate 2 to turn over and return to an original position, extending the first telescopic cylinder at the same time, and pushing the roller 5 to the original position to roll the glass 3 for the second time; the roller 5 returns to the initial process, the upper plate 2 is brought back to the initial position through the elastic mechanism, and the whole attaching process is completed.

The preferred embodiments of the present disclosure are described in detail above with reference to the accompanying drawings, however, the present disclosure is not limited to the specific details in the above embodiments, and various simple modifications may be made to the technical solution of the present disclosure within the technical idea of the present disclosure, and these simple modifications all belong to the protection scope of the present disclosure.

It should be noted that, in the foregoing embodiments, various features described in the above embodiments may be combined in any suitable manner, and in order to avoid unnecessary repetition, various combinations that are possible in the present disclosure are not described again.

In addition, any combination of various embodiments of the present disclosure may be made, and the same should be considered as the disclosure of the present disclosure, as long as it does not depart from the spirit of the present disclosure.

Claims

1. A glass film laminator, comprising:

a frame body;

the lower plate is arranged on the frame body and is provided with a first placing area for placing glass, and a first adsorption device for fixing the glass is arranged on the lower plate;

a roller movably disposed above the lower plate in an extending direction of the lower plate; and

the upper plate, its one end with the support body is articulated in order to be close to and keep away from the direction of hypoplastron is turned over and is rolled over, has on it to be used for placing the diaphragm and with the first second that places the district and correspond places the district, be equipped with on the upper plate and be used for fixing the second adsorption equipment of diaphragm, the length that the district was placed to the second is less than the length of diaphragm is so that the diaphragm is kept away from the one end of upper plate hinged end can bulge in the upper plate, so that the roller bearing is in the diaphragm breaks away from will before the upper plate the diaphragm is pushed down.

2. The glass film laminator according to claim 1, wherein the roller has an initial position away from the upper plate and a stop position proximate to the upper plate after completion of the one rolling, and the roller is reciprocally movably disposed between the initial position and the stop position to allow the roller to return from the stop position to the initial position to roll the glass and the film twice.

3. The glass film laminator according to claim 2, wherein the roller is connected to a driving device to reciprocate the roller along an extending direction of the lower plate.

4. The glass film laminating machine of claim 3, wherein the frame body comprises a mounting plate on which the upper plate and the lower plate are mounted and a bottom plate arranged below the mounting plate at intervals, the roller is mounted above the lower plate through a first fixing device, the first fixing device comprises two first fixing plates rotatably connected with two ends of the roller respectively and a first connecting plate arranged below the mounting plate and connected with the two first fixing plates, the two first fixing plates are arranged on two sides of the mounting plate respectively and are connected with the mounting plate in a sliding manner, and a driving end of the driving device is arranged in parallel with the lower plate and is connected with the first connecting plate.

5. The glass film laminator according to claim 4, wherein the upper plate is slidably connected to the frame body through a second fixing device, a connecting mechanism is provided between the upper plate and the roller to enable the upper plate and the roller to move synchronously, and the upper plate and the lower plate are attached to each other when the roller moves from the initial position to the stop position.

6. The glass film laminator according to claim 5, wherein the connecting mechanism is configured as an elastic mechanism, the elastic mechanism is disposed parallel to the moving direction of the upper plate, one end of the elastic mechanism is connected to the second fixing device, and the other end of the elastic mechanism abuts against the first fixing device to assist the roller to return to the initial position.

7. The glass film laminating machine according to claim 6, wherein the upper plate is hinged to the frame body through a second fixing device, the second fixing device comprises two second fixing plates which are rotatably connected to two ends of a hinge shaft of the upper plate respectively and are slidably connected to the mounting plate, and a second connecting plate which is arranged below the mounting plate and is connected to the two second fixing plates, the connecting mechanism comprises a supporting rod, a spring, a top block and a connecting plate, one end of the supporting rod is connected to the second connecting plate, the other end of the supporting rod penetrates through the first connecting plate, the top block is fixedly arranged on the supporting rod and abuts against one side, close to the second connecting plate, of the first connecting plate, so that the upper plate is driven to synchronously move when the roller moves to the stop position, one end of the spring is connected to the top block, and the other end of the spring is connected to the connecting plate which is arranged between the first connecting plate and the second connecting plate and is connected to the mounting plate, so that the roller drives the upper plate to reset when the roller moves to the initial position.

8. The glass film laminator according to claim 3, wherein the drive device is configured as a first telescopic cylinder.

9. The glass film laminating machine of claim 1, wherein the upper plate is slidably connected to the frame body through a second fixing device, a second telescopic cylinder is connected to the second fixing device so that the second telescopic cylinder and the second fixing device can move synchronously, the second telescopic cylinder enables the upper plate to be folded along the hinged end of the upper plate through a transmission device, a driving rod of the second telescopic cylinder extends out to drive the upper plate to be folded towards the direction close to the lower plate, and the driving rod of the second telescopic cylinder retracts to drive the upper plate to be folded towards the direction far away from the lower plate.

10. The glass film sticking machine according to claim 9, wherein the transmission device comprises a driven gear connected with the hinge shaft of the upper plate, a rack connected with the driving rod of the second telescopic cylinder, and a transmission gear engaged with both the driven gear and the rack, and the transmission gear is used for changing the rotation direction of the driven gear.