Device for arranging and folding packaging bags

Abstract

The utility model discloses a device for arranging and folding packaging bags, which belongs to the technical field of packaging equipment and comprises a machine body, a bag feeding mechanism arranged on the front end face of the machine body, a swing arm arranged below the bag feeding mechanism, a U-shaped groove formed in the side face, away from the machine body, of the swing arm, and two ends of the U-shaped groove are communicated with the top end and the bottom end of the swing arm. A bag collecting table is arranged below the swing arm, a plurality of movable limiting plates are arranged on the upper end face of the bag collecting table, spaces which are used for containing material frames and are different in size can be formed among the limiting plates, the length of the swing arm and the width in the direction perpendicular to the machine body can be adjusted according to the sizes of the material frames, and the bag conveying mechanism can convey packaging bags into the swing arm. And packaging bags can be conveyed into the material frame in the rotating process of the swing arm. Material frames of different specifications can be placed on the bag collecting table, the limiting plates limit the material frames and prevent the material frames from sliding on the bag collecting table, the length of the swing arms and the width of the machine body in the direction perpendicular to the machine body can be adjusted according to the sizes of the material frames, and therefore packaging bags can be better conveyed.

Description

Technical Field

[0001] The utility model relates to the technical field of packaging equipment, and particularly relates to a device for sorting and folding packaging bags. Background Art

[0002] Packaging bags are used to contain various condiment pastes, shampoo creams, laundry detergents, traditional Chinese medicine creams, paste-like pesticides, etc. The packaging bags are produced by a packaging bag production machine, and the packaging bags produced from the discharge port of the packaging bag production machine are continuous. During the process of transporting the packaging bags to the next material filling station, the continuous packaging bags need to be stacked in an S shape at the bottom of the material box. In the prior art, manual bag stacking has a high labor intensity and a low bag stacking efficiency. Using a bag stacking device can reduce manual operation and improve efficiency. However, when the existing bag stacking device transports the packaging bags into the material box for stacking, the space on the bag stacking device for placing the material box is fixed, resulting in the inability to select a suitable material box according to the size and quantity requirements of the packaging bags.

[0003] In view of the problems existing in the above-mentioned prior art, the utility model combines the design and use experience in related fields for many years, and designs and manufactures a device for sorting and folding packaging bags to overcome the above defects. Summary of the Utility Model

[0004] For the problems existing in the prior art, the utility model provides a device for sorting and folding packaging bags, which is applicable to transporting packaging bags of different sizes, can select a suitable material box according to the size and quantity of the packaging bags, and at the same time, the material box will not slide on the bag stacking device.

[0005] In order to achieve the above object, the technical scheme adopted by the utility model is as follows: A device for sorting and folding packaging bags includes a machine body. A bag feeding mechanism is arranged on the front end face of the machine body. A swing arm is arranged below the bag feeding mechanism. One end of the swing arm is rotatably connected to the machine body. A U-shaped groove is arranged on the side of the swing arm away from the machine body. Both ends of the U-shaped groove communicate with the top end and the bottom end of the swing arm. A bag receiving table is arranged below the swing arm. A plurality of movable limiting plates are arranged on the upper end face of the bag receiving table. Spaces of different sizes for placing the material box can be formed between the plurality of limiting plates. The length of the swing arm and the width in the direction perpendicular to the machine body can be adjusted according to the size of the material box;

[0006] The bag feeding mechanism can send the packaging bags into the swing arm, and the swing arm can transport the packaging bags into the material box during the rotation process.

[0007] Preferably, a slidable length adjustment cylinder is provided at the lower end of the swing arm. The sliding direction of the length adjustment cylinder is parallel to the conveying direction of the inner packaging bag in the swing arm. A width adjustment cover with an opening is further included. The opening end of the width adjustment cover is arranged facing the opening end of the swing arm. The top and bottom ends of the width adjustment cover are communicated with the swing arm. The side surface of the width adjustment cover is slidably connected to the side surface of the swing arm. The sliding direction of the width adjustment cover is perpendicular to the extending direction of the swing arm.

[0008] Preferably, a number of first limit posts are provided on both side surfaces of the lower end of the swing arm. First limit grooves are provided on both side surfaces of the length adjustment cylinder. One end of the first limit post passes through the first limit groove and is slidably connected to the first limit groove;

[0009] A number of second limit posts are provided on both side surfaces of the swing arm. A number of second limit grooves are provided on both side surfaces of the width adjustment cover. One end of the second limit post passes through the second limit groove and is slidably connected to the second limit groove.

[0010] Preferably, the limit plate is L-shaped.

[0011] Preferably, two limit plates are provided at one end of the bag receiving table. The two limit plates can slide towards each other. One limit plate is provided at the other end of the bag receiving table.

[0012] Preferably, a number of sliding grooves are provided on the upper end surface of the bag receiving table. The extending direction of the sliding grooves is perpendicular to the limit plate. A sliding column is provided on the limit plate. The lower end of the sliding column is located in the sliding groove and is slidably connected to the sliding groove.

[0013] Preferably, the bag feeding mechanism includes a support rod. The support rod is slidably connected to the machine body in the horizontal direction. An inlet bag roller is pivotally connected to the support rod. The inlet bag roller can introduce the packaging bag into the bag feeding mechanism. A number of bag guiding rollers are provided. The bag guiding rollers are pivotally connected to the machine body. The bag guiding rollers are used to receive the packaging bag conveyed by the inlet bag roller and continuously output it. Annular baffles are sleeved at both ends of the inlet bag roller and the bag guiding rollers.

[0014] Preferably, the bag feeding mechanism further includes two pressing plates. The two pressing plates are located below the bag guiding rollers. The two pressing plates are both arranged on the machine body and form a pressing plate interval. The pressing plate interval is used to receive the packaging bag output by the bag guiding rollers. Two traction wheels are provided below the two pressing plates. The two traction wheels are rotatably connected to the machine body and are located directly above the swing arm. A traction interval is formed between the two traction wheels. The traction interval is used to receive the packaging bag output by the pressing plate interval and clamp and output it.

[0015] Preferably, an anti-slip ring is sleeved on the outer surface of one of the traction wheels.

[0016] Preferably, a workbench is connected to the lower end of the machine body. Two slide rails are provided at both ends of the workbench. The two slide rails are perpendicular to the machine body. The device further includes a plurality of slide rail supports. The two slide rail supports are respectively arranged at both ends of the slide rail. The slide rail is fixed to the workbench through the slide rail supports. The bag collecting table is arranged above the slide rail. A sliding plate is vertically arranged on the slide rail. One end of the sliding plate is connected to the bag collecting table. Two rollers are connected to the upper end of the sliding plate through a rotating shaft. One roller is connected to the lower end of the sliding plate through a rotating shaft. The rollers at both ends of the sliding plate are respectively located on the upper and lower end faces of the slide rail. The bag collecting table is slidably connected to the workbench through the rollers;

[0017] A rack is fixedly arranged on the lower end face of the bag collecting table. The rack is arranged parallel to the slide rail. A first motor is arranged on the workbench. The output end of the first motor is connected with a gear. The gear meshes with the rack.

[0018] The beneficial effects of the utility model are as follows:

[0019] 1. The utility model can convey packaging bags of different sizes. The size of the space formed by the limiting plates on the bag collecting table can be changed, and material boxes of different specifications can be placed. The limiting plates are used to limit the material boxes to prevent the material boxes from sliding on the bag collecting table. The length of the swing arm and the width in the vertical direction of the machine body can be adjusted according to the size of the material box, so as to better convey the packaging bags.

[0020] 2. The position of the bag entering roller on the support plate of the utility model relative to the machine body can be changed, which can better tension the packaging bag during the conveyance of the packaging bag and improve the conveyance efficiency. Description of the Drawings

[0021] Figure 1 It is a structural schematic diagram of a device for packaging bag sorting and folding.

[0022] Figure 2 It is a structural schematic diagram of a bag feeding mechanism in a device for packaging bag sorting and folding.

[0023] Figure 3 It is a structural schematic diagram of a workbench in a device for packaging bag sorting and folding.

[0024] In the figure: 1 - machine body, 2 - bag feeding mechanism, 3 - swing arm, 4 - limiting plate, 5 - bag collecting table, 6 - width adjusting cover, 7 - length adjusting cylinder, 8 - workbench, 21 - support plate, 22 - bag guiding roller, 23 - bag entering roller, 24 - annular baffle, 25 - pressing plate, 26 - traction wheel, 81 - slide rail, 82 - slide rail support, 83 - sliding plate, 84 - roller, 85 - gear. Detailed Embodiments

[0025] For the convenience of those skilled in the art to understand, the present utility model will be further described below with reference to the drawings.

[0026] As shown Figures 1-3 in the figure, a device for sorting and folding packaging bags includes a machine body 1. A bag feeding mechanism 2 is provided on the front end face of the machine body 1. A swing arm 3 is provided below the bag feeding mechanism 2. One end of the swing arm 3 is rotatably connected to the machine body 1. A U-shaped groove is provided on the side of the swing arm 3 away from the machine body 1. Both ends of the U-shaped groove communicate with the top and bottom ends of the swing arm 3. A bag receiving table 5 is provided below the swing arm 3. A number of movable limiting plates 4 are provided on the upper end face of the bag receiving table 5. Spaces of different sizes for placing material frames can be formed between the number of limiting plates 4. The length of the swing arm 3 and the width in the direction perpendicular to the machine body 1 can be adjusted according to the size of the material frame. The bag feeding mechanism 2 can send the packaging bags into the swing arm 3. The swing arm 3 can convey the packaging bags to the material frame. A swing arm motor for driving the swing arm 3 to rotate is provided on the machine body 1.

[0027] Specifically, the packaging bags are conveyed to the swing arm 3 in the state of connected small bags by the bag feeding mechanism 2. Under the action of its own gravity, the connected small bags can be continuously output through the swing arm 3, and the swing arm 3 swings at the same time. The swing arm 3 swings from one side of the material frame to the other side. During the swinging process of the swing arm 3, the connected small bags can be stacked layer by layer in the material frame. Therefore, according to the size and quantity of the conveyed connected small bags, a suitable material frame is selected, and the limiting plates 4 are used to limit the material frame to prevent the connected small bags from leaking out of the material frame due to the sliding of the material frame. According to the size of the connected small bags and the specifications of the material frame, the width of the swing arm 3 in the direction perpendicular to the machine body 1 is adjusted to adapt to the conveying of connected small bags of different sizes. By changing the length of the swing arm 3, the connected small bags conveyed into the material frame can be made to abut against the end of the material frame as much as possible, improving the space utilization rate of the material frame and better conveying the connected small bags, avoiding the situation that the length of the swing arm 3 is too long resulting in the connected small bags falling outside the material frame or the length of the swing arm 3 is too short resulting in the connected small bags falling in the middle of the material frame and unable to abut against both ends of the material frame, reducing the space utilization rate of the material frame.

[0028] A slidable length adjustment cylinder 7 is provided at the lower end of the swing arm 3. The sliding direction of the length adjustment cylinder 7 is parallel to the conveying direction of the packaging bags in the swing arm 3. It also includes a width adjustment cover 6 with an opening. The opening end of the width adjustment cover 6 faces the opening end of the swing arm 3. The top and bottom ends of the width adjustment cover 6 communicate with the swing arm 3. The side surface of the width adjustment cover 6 is slidably connected to the side surface of the swing arm 3. The sliding direction of the width adjustment cover 6 is perpendicular to the extending direction of the swing arm 3. A number of first limiting columns are provided on both side surfaces at the lower end of the swing arm 3. First limiting grooves are provided on both side surfaces of the length adjustment cylinder 7. One end of the first limiting column passes through the first limiting groove and is slidably connected to the first limiting groove. A number of second limiting columns are provided on both side surfaces of the swing arm 3. A number of second limiting grooves are provided on both side surfaces of the width adjustment cover 6. One end of the second limiting column passes through the second limiting groove and is slidably connected to the second limiting groove.

[0029] Specifically, by changing the position of the first limit post in the first limit groove, the length adjustment cylinder 7 is slid upward or downward to change the length of the swing arm 3. By changing the position of the second limit post in the second limit groove, the width adjustment cover 6 is moved closer to or farther away from the swing arm 3 to adjust the width of the swing arm 3 in the direction perpendicular to the machine body 1.

[0030] The limit plate 4 is L-shaped. Two limit plates 4 are provided at one end of the bag receiving table 5, and the two limit plates 4 can slide towards each other. One limit plate 4 is provided at the other end of the bag receiving table 5. A plurality of sliding grooves are provided on the upper end surface of the bag receiving table 5, and the extending direction of the sliding grooves is perpendicular to the limit plate 4. A sliding post is provided on the limit plate 4, and the lower end of the sliding post is located in the sliding groove and is slidably connected to the sliding groove.

[0031] By changing the position of the sliding post in the sliding groove, the position of the limit plate 4 on the bag receiving table 5 is changed, so as to limit the material frames of different specifications in the present utility model.

[0032] The bag feeding mechanism 2 includes a support rod 21 which is slidably connected to the machine body 1 in the horizontal direction. An inlet bag roller 23 is pivotally connected to the support rod 21, and the inlet bag roller 23 can introduce the packaging bag into the bag feeding mechanism 2. A plurality of bag guiding rollers 22 are pivotally connected to the machine body 1, and the bag guiding rollers 22 are used for receiving the packaging bag conveyed by the inlet bag roller 23 and continuously outputting it. Annular baffles 24 are sleeved on both ends of the inlet bag roller 23 and the bag guiding rollers 22. The bag feeding mechanism 2 further includes two pressing plates 25 which are located below the bag guiding rollers 22. The two pressing plates 25 are both slidably arranged on the machine body 1 and form a pressing plate interval therebetween. The sliding direction of the two pressing plates 25 is perpendicular to the extending direction of the bag guiding rollers 22. The pressing plate interval is used for receiving the packaging bag output by the bag guiding rollers 22. Two traction wheels 26 are provided below the two pressing plates 25. The two traction wheels 26 are rotatably connected to the machine body 1 and are located directly above the swing arm 3. A traction interval is formed between the two traction wheels 26. The traction interval is used for receiving the packaging bag output by the pressing plate interval and clamping and outputting it. An anti-slip ring is sleeved on the outer surface of one traction wheel 26. The driving force for the rotation of the two traction wheels 26 is provided by a motor, and the rotation directions of the two traction wheels 26 are opposite. The two pressing plates 25 can approach each other or move away from each other, which is convenient for adjustment according to the thickness of the connected small bags.

[0033] In this utility model, the connected bags are fed into the bag feeding mechanism 2 by the bag feeding roller 23. Then, the connected bags bypass the bag guiding roller 22 upward or downward, and the connected bags can be continuously conveyed between the two pressing plates 25 below. The annular baffle 24 prevents the connected bags from detaching from the bag feeding roller 23 and the bag guiding roller 22, making the conveying process more stable. The support plate 21 is slidably connected to the machine body 1, and the bag feeding roller 23 can move closer to or away from the machine body 1, thereby further tensioning the connected bags during the conveying process. The connected bags output from the bag guiding roller 22 enter the pressing plate gap between the two pressing plates 25, and the width of the pressing plate gap is adjusted according to the thickness of the connected bags, so as to better convey the connected bags. The two traction wheels 26 rotate in opposite directions, and can continuously press and output the connected bags output from the pressing plate gap into the swing arm 3. The anti-slip rings increase the roughness of the traction wheels 26, thereby increasing the friction between the connected bags and the traction wheels 26, and preventing the connected bags from slipping during the contact with the traction wheels 26, which affects the conveying.

[0034] A workbench 8 is connected to the lower end of the machine body 1. Two slide rails 81 are provided at both ends of the workbench 8, and the two slide rails 81 are arranged perpendicular to the machine body 1. There are also several slide rail supports 82, and the two slide rail supports 82 are respectively arranged at both ends of the slide rail 81. The slide rail 81 is fixed to the workbench 8 through the slide rail supports 82. A bag receiving table 5 is arranged above the slide rail 81. A sliding plate 83 is vertically arranged on the slide rail 81. One end of the sliding plate 83 is connected to the bag receiving table 5. Two rollers 84 are connected to the upper end of the sliding plate 83 through a rotating shaft, and one roller 84 is connected to the lower end of the sliding plate 83 through a rotating shaft. The rollers 84 at both ends of the sliding plate 83 are respectively located on the upper and lower end faces of the slide rail 81. The bag receiving table 5 is slidably connected to the workbench 8 through the rollers 84. A rack is fixedly arranged on the lower end face of the bag receiving table 5, and the rack is arranged parallel to the slide rail 81. A first motor is arranged on the workbench 8, and the output end of the first motor is connected with a gear 85, and the gear 85 meshes with the rack.

[0035] Specifically, the first motor drives the gear 85 to rotate, the gear 85 drives the rack to move horizontally, and the rack thus drives the bag receiving table 5 to move. The bag receiving table 5 slides on the workbench 8 through the rollers 84, and then drives the material box on the bag receiving table 5 to move. The connected bags gradually cover a layer on the material box. Then, the first motor rotates in the reverse direction, driving the gear 85 to rotate in the reverse direction, and the material box moves in the reverse direction to continue receiving the connected bags conveyed by the swing arm 3.

[0036] Specific operation process

[0037] Place the material frame on the bag receiving table 5. According to the size of the material frame, adjust the position of the limit plate 4 so that the limit plate 4 limits the material frame. Adjust the distance between the two pressing plates 25 so that the pressing plate gap adapts to the thickness of the connected small bags. Adjust the width adjustment cover 6 according to the size of the connected small bags so that the swing arm 3 can smoothly convey the connected small bags. Adjust the length adjustment cylinder 7 according to the size of the material frame. Start the motor, and the motor drives the two traction wheels 26 to rotate. The two traction wheels 26 rotate in opposite directions. Start the swing arm motor, and the swing arm motor drives the swing arm 3 to rotate. The connected small bags are introduced into the bag conveying mechanism 2 by the feeding roller 23. The connected small bags bypass the bag guiding roller 22 upward or downward. The bag guiding roller 22 receives the connected small bags output by the feeding roller 23 and conveys them into the two pressing plates 25. The two pressing plates 25 convey the connected small bags into the gap between the two traction wheels 26. Under the clamping operation of the two traction wheels 26, the connected small bags are flattened and conveyed into the swing arm 3. Under the action of its own gravity, the connected small bags are continuously output through the swing arm 3. The swing arm 3 swings from one side of the material frame to the other side. During the swinging process of the swing arm 3, the connected small bags are stacked layer by layer in the material frame. When the swing arm 3 rotates to the maximum amplitude position, start the first motor. The first motor drives the gear 85 to rotate. The gear 85 drives the rack to move in the direction perpendicular to the machine body 1. The rack thus drives the bag receiving table 5 to move in the direction perpendicular to the machine body 1 by a displacement distance equal to the width of a connected small bag, thereby driving the material frame on the bag receiving table 5 to move. The roller 84 slides along the slide rail 81, and the connected small bags gradually cover a layer in the material frame. Then the first motor rotates in the reverse direction, causing the gear 85 to rotate in the reverse direction, thereby driving the material frame on the bag receiving table 5 to move in the reverse direction and continue to receive the connected small bags conveyed by the swing arm 3 until the entire material frame is filled with connected small bags. After filling, cut off the end of the connected small bags, remove the material frame, and place an empty material frame.

[0038] It should be understood that the use of these embodiments is only for illustrating the present invention and is not intended to limit the protection scope of the present invention. In addition, it should also be understood that after reading the technical content of the present invention, those skilled in the art can make various changes, modifications, and / or variations to the present invention, and all these equivalent forms also fall within the protection scope defined by the appended claims of this application.

Claims

1. A device for sorting and folding packaging bags, characterized in that, It includes a machine body (1). A bag feeding mechanism (2) is provided on the front end face of the machine body (1). A swing arm (3) is provided below the bag feeding mechanism (2). One end of the swing arm (3) is rotatably connected to the machine body (1). A U-shaped groove is provided on the side of the swing arm (3) away from the machine body (1). Both ends of the U-shaped groove communicate with the top and bottom ends of the swing arm (3). A bag receiving table (5) is provided below the swing arm (3). A number of movable limiting plates (4) are provided on the upper end face of the bag receiving table (5). Spaces of different sizes for placing the material frame can be formed between the limiting plates (4). The length of the swing arm (3) and the width in the direction perpendicular to the machine body (1) can be adjusted according to the size of the material frame. The bag feeding mechanism (2) can send the packaging bag into the swing arm (3), and the swing arm (3) can convey the packaging bag into the material frame.

2. The device for sorting and folding packaging bags according to claim 1, wherein, A slidable length adjusting cylinder (7) is provided at the lower end of the swing arm (3). The sliding direction of the length adjusting cylinder (7) is parallel to the conveying direction of the packaging bag in the swing arm (3). It also includes a width adjusting cover (6) with an opening. The opening end of the width adjusting cover (6) faces the opening end of the swing arm (3). The top and bottom ends of the width adjusting cover (6) communicate with the swing arm (3). The side surface of the width adjusting cover (6) is slidably connected to the side surface of the swing arm (3). The sliding direction of the width adjusting cover (6) is perpendicular to the extending direction of the swing arm (3).

3. The device for sorting and folding packaging bags according to claim 2, wherein, A number of first limiting columns are provided on both side surfaces at the lower end of the swing arm (3). First limiting grooves are provided on both side surfaces of the length adjusting cylinder (7). One end of the first limiting column passes through the first limiting groove and is slidably connected to the first limiting groove. A number of second limiting columns are provided on both side surfaces of the swing arm (3). A number of second limiting grooves are provided on both side surfaces of the width adjusting cover (6). One end of the second limiting column passes through the second limiting groove and is slidably connected to the second limiting groove.

4. A device for packaging bag sorting and folding according to claim 1, characterized in that, The limiting plate (4) is L-shaped.

5. The device for packaging bag sorting and folding according to claim 4, wherein, Two limiting plates (4) are provided at one end of the bag receiving table (5). The two limiting plates (4) can slide towards each other. One limiting plate (4) is provided at the other end of the bag receiving table (5).

6. The device for packaging bag sorting and folding according to claim 5, wherein, A number of sliding grooves are provided on the upper end face of the bag receiving table (5). The extending direction of the sliding grooves is perpendicular to the limiting plate (4). A sliding column is provided on the limiting plate (4). The lower end of the sliding column is located in the sliding groove and is slidably connected to the sliding groove.

7. A device for packaging bag sorting and folding according to claim 1, characterized in that, The bag feeding mechanism (2) includes a support rod (21). The support rod (21) is slidably connected to the machine body (1) in the horizontal direction. A bag entering roller (23) is pivotally connected to the support rod (21). The bag entering roller (23) can introduce the packaging bag into the bag feeding mechanism (2). A number of bag guiding rollers (22) are pivotally connected to the machine body (1). The bag guiding rollers (22) are used to receive the packaging bag conveyed by the bag entering roller (23) and continuously output it. Annular baffles (24) are sleeved on both ends of the bag entering roller (23) and the bag guiding rollers (22).

8. A device for packaging bag sorting and folding according to claim 7, characterized in that, The bag feeding mechanism (2) further includes two pressing plates (25). The two pressing plates (25) are located below the bag guiding rollers (22). The two pressing plates (25) are both arranged on the machine body (1) and form a pressing plate interval therebetween. The pressing plate interval is used to receive the packaging bags output by the bag guiding rollers (22). Below the two pressing plates (25), there are two traction wheels (26). The two traction wheels (26) are rotatably connected to the machine body (1) and are located directly above the swing arm (3). A traction interval is formed between the two traction wheels (26). The traction interval is used to receive the packaging bags output from the pressing plate interval and clamp and output them.

9. A device for packaging bag sorting and folding according to claim 8, characterized in that, An anti-slip ring is sleeved on the outer surface of one of the traction wheels (26).

10. A device for sorting and folding packaging bags according to claim 1, characterized in that, The lower end of the machine body (1) is connected with a workbench (8). Two slide rails (81) are provided at both ends of the workbench (8). The two slide rails (81) are arranged perpendicular to the machine body (1). There are also several slide rail supports (82). The two slide rail supports (82) are respectively arranged at both ends of the slide rails (81). The slide rails (81) are fixed on the workbench (8) through the slide rail supports (82). The bag receiving table (5) is arranged above the slide rails (81). A sliding plate (83) is vertically arranged on the slide rails (81). One end of the sliding plate (83) is connected with the bag receiving table (5). Two rollers (84) are connected to the upper end of the sliding plate (83) through a rotating shaft. One roller (84) is connected to the lower end of the sliding plate (83) through a rotating shaft. The rollers (84) at both ends of the sliding plate (83) are respectively located on the upper and lower end faces of the slide rails (81). The bag receiving table (5) is slidably connected to the workbench (8) through the rollers (84); A rack is fixedly arranged on the lower end face of the bag receiving table (5). The rack is arranged parallel to the slide rails (81). A first motor is arranged on the workbench (8). The output end of the first motor is connected with a gear (85). The gear (85) meshes with the rack.

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