CN213389247U

CN213389247U - Cleaning device is used in production of mosquito repellent surface fabric

Info

Publication number: CN213389247U
Application number: CN202021762584.3U
Authority: CN
Inventors: 姚子川
Original assignee: Suzhou Qianguan New Textile Technology Co Ltd
Current assignee: Suzhou Qianguan New Textile Technology Co Ltd
Priority date: 2020-08-21
Filing date: 2020-08-21
Publication date: 2021-06-08
Anticipated expiration: 2030-08-21

Abstract

The application discloses cleaning device is used in production of mosquito repellent surface fabric, including mounting plate, purge chamber, drying chamber, tension structure, the structure of brushing and rolling structure, mounting plate's the one end of the first support frame of upper surface department fixedly connected with, the other end department fixedly connected with purge chamber of first support frame, fixed mounting has the structure of brushing in the inner chamber of purge chamber, the structure of brushing includes fixed block, brush hair, cylinder and ARC fixed plate. This device is rational in infrastructure, and convenient to use can carry out clean stoving work to the surface fabric that needs processed, carries out the rolling after clean stoving, and this device compact structure, efficiency is higher, uses manpower sparingly, is fit for promoting, and this device has the structure of brushing, can all brush the both sides face of surface fabric through the structure of brushing, can thoroughly get rid of the foreign matter dust on surface of surface fabric etc. and the brush is comparatively even for the clean effect of surface fabric is better.

Description

Cleaning device is used in production of mosquito repellent surface fabric

Technical Field

The application relates to a cleaning device for fabric production, in particular to a cleaning device for mosquito repellent fabric production.

Background

Fabric is the material used to make clothing. As one of the three elements of the garment, the fabric not only can explain the style and the characteristics of the garment, but also directly controls the expression effects of the color and the shape of the garment.

The mosquito repellent fabric is popular in summer due to the fact that mosquitoes are more, the fabric needs to be cleaned when the mosquito repellent fabric is produced and processed, the traditional cleaning mode is low in efficiency, manpower is wasted, and the fabric is not suitable for being cleaned in a large amount. Therefore, a cleaning device for producing mosquito repellent fabrics is provided for solving the problems.

Disclosure of Invention

A cleaning device for producing mosquito-repellent fabrics comprises an installation bottom plate, a cleaning chamber, a drying chamber, a tensioning structure, a cleaning structure and a winding structure;

the upper surface of the mounting base plate is fixedly connected with one end of a first support frame, the other end of the first support frame is fixedly connected with a cleaning chamber, a cleaning structure is fixedly arranged in an inner cavity of the cleaning chamber and comprises a fixed block, bristles, a roller and an arc-shaped fixed plate, one end of the fixed block is fixedly connected with the inner cavity side wall of the cleaning chamber, the other end of the fixed block is fixedly connected with the arc-shaped fixed plate, the bristles are fixedly connected onto the arc-shaped wall of the arc-shaped fixed plate, the roller is rotatably connected onto the inner cavity side wall of the cleaning chamber, the arc-shaped surface of the roller is contacted with the bristles, a tensioning structure is fixedly arranged on the surface side wall of the cleaning chamber and comprises a fixed plate, a connecting loop bar, a spring, a connecting bar and a pressing roller, one end of the fixed plate is fixedly connected, the two sides of the other end of the fixed plate are fixedly connected with one end of a connecting sleeve rod, the inner cavities of the two connecting sleeve rods are connected with connecting rods in a sliding mode, the upper ends of the two connecting rods are fixedly connected with one end of a spring, the other ends of the two springs are fixedly connected to the upper wall of the inner cavity of the connecting sleeve rod, and a pressing roller is rotatably connected between the two connecting sleeve rods and between the bottom ends of the two connecting rods;

the upper surface of the mounting base plate is fixedly connected with one end of a second support frame, the other end of the second support frame is fixedly connected with a drying chamber, the inner cavity side wall of the drying chamber is fixedly connected with a rectangular chute, the rectangular chute is connected with a T-shaped lifting block in a sliding manner, one end of the T-shaped lifting block is fixedly connected with a rectangular shell, the upper surface of the drying chamber is fixedly provided with a servo motor, the tail end of an output shaft of the servo motor is fixedly connected with one end of a threaded rod, the other end of the threaded rod penetrates through the drying chamber and extends into the rectangular chute to be rotatably connected with the side wall of the rectangular chute, the threaded rod is in threaded connection with the T-shaped lifting block, the upper surface of the mounting base plate is fixedly provided with a rolling structure, the rolling structure comprises a support plate, a rolling roller, a first rotating wheel and a rotating rod, and one end of the support plate is, two rotate between the top of backup pad and be connected with the dwang, fixedly connected with wind-up roll on the arc wall of dwang, the first rotating wheel of one end fixedly connected with of department of dwang.

Furthermore, the two sides of the cleaning chamber and the drying chamber are both provided with an inlet and an outlet.

Furthermore, a flow guide hole is formed in the bottom end of the cleaning chamber, and a collecting tank is arranged on the lower surface of the cleaning chamber.

Further, the upper surface department fixed mounting of mounting plate has the liquid reserve tank, the upper surface department fixed mounting of liquid reserve tank has a machine pump, the one end of the end fixedly connected with feed liquor pipe of intaking of machine pump, the other end of feed liquor pipe runs through the liquid reserve tank and extends to the inner chamber bottom side department of liquid reserve tank, the one end of the play water end fixedly connected with drain pipe of machine pump, the inner chamber upper wall department fixed mounting of purge chamber has fixed pipe, the one end of drain pipe extend to fixed pipe department and with fixed pipe between mutual UNICOM.

Further, a plurality of spray heads are fixedly installed on the arc-shaped surface of the fixed pipe and are arranged at equal intervals.

Furthermore, the cleaning and brushing structures are arranged on the side walls of the two sides of the inner cavity of the cleaning chamber in a plurality of groups in total.

Further, the upper surface department fixed mounting of drying chamber has the air heater, the output fixedly connected with of air heater connects the one end of tuber pipe, the other end of connecting the tuber pipe extend fixed to the lateral wall department of rectangle shell and with the inner chamber of rectangle shell between communicate each other, the connecting air pipe comprises soft material, a plurality of vents have been seted up to the inner chamber lateral wall department of rectangle shell.

Furthermore, the inner cavity of the drying chamber is rotatably connected with three second guide rollers, two of the second guide rollers are positioned on the lower side of the inner cavity of the drying chamber, and the other second guide roller is positioned on the upper side of the inner cavity of the drying chamber.

Furthermore, a second servo motor is fixedly mounted at the side wall of the supporting plate, a second rotating wheel is fixedly connected at the tail end of an output shaft of the second servo motor, and a belt is sleeved between the second rotating wheel and the first rotating wheel.

Further, the outlet of the drying chamber is rotatably connected with a guide roller.

The beneficial effect of this application is: the application provides a cleaning device is used in production of mosquito repellent surface fabric that efficiency is higher clean better effect.

Drawings

In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present application, and it is obvious for those skilled in the art that other drawings can be obtained according to the drawings without inventive exercise.

FIG. 1 is a schematic perspective view of an embodiment of the present application;

FIG. 2 is a schematic diagram of an internal structure of an embodiment of the present application;

FIG. 3 is an enlarged view of a portion of the structure at A in FIG. 1 according to an embodiment of the present disclosure;

FIG. 4 is a schematic side view of a wind-up roll according to an embodiment of the present application;

fig. 5 is a schematic top view of a rectangular housing according to an embodiment of the present application.

In the figure: 1. the device comprises a mounting base plate, 2, a cleaning chamber, 3, a collecting tank, 4, a first supporting frame, 5, a liquid storage tank, 6, a liquid inlet pipe, 7, a pump, 8, a liquid outlet pipe, 9, a fixing pipe, 10, a spray head, 11, a fixing block, 12, bristles, 13, a roller, 14, an arc-shaped fixing plate, 15, a fixing plate, 16, a connecting sleeve rod, 17, a spring, 18, a connecting rod, 19, a pressing roller, 20, a drying chamber, 21, a second supporting frame, 22, a servo motor, 23, a threaded rod, 24, a rectangular sliding groove, 25, a T-shaped lifting block, 26, a rectangular shell, 27, a hot air blower, 28, a connecting air pipe, 29, a guide roller, 30, a supporting plate, 31, a winding roller, 32, a first rotating wheel, 33, a belt, 34, a second rotating wheel, 35, a second servo motor, 36, a rotating rod, 37 and a second.

Detailed Description

In order to make the technical solutions better understood by those skilled in the art, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are only partial embodiments of the present application, but not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.

It should be noted that the terms "first," "second," and the like in the description and claims of this application and in the drawings described above are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order. It should be understood that the data so used may be interchanged under appropriate circumstances such that embodiments of the application described herein may be used. Furthermore, the terms "comprises," "comprising," and "having," and any variations thereof, are intended to cover a non-exclusive inclusion, such that a process, method, system, article, or apparatus that comprises a list of steps or elements is not necessarily limited to those steps or elements expressly listed, but may include other steps or elements not expressly listed or inherent to such process, method, article, or apparatus.

In this application, the terms "upper", "lower", "left", "right", "front", "rear", "top", "bottom", "inner", "outer", "middle", "vertical", "horizontal", "lateral", "longitudinal", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings. These terms are used primarily to better describe the present application and its embodiments, and are not used to limit the indicated devices, elements or components to a particular orientation or to be constructed and operated in a particular orientation.

Moreover, some of the above terms may be used to indicate other meanings besides the orientation or positional relationship, for example, the term "on" may also be used to indicate some kind of attachment or connection relationship in some cases. The specific meaning of these terms in this application will be understood by those of ordinary skill in the art as appropriate.

Furthermore, the terms "mounted," "disposed," "provided," "connected," and "sleeved" are to be construed broadly. For example, it may be a fixed connection, a removable connection, or a unitary construction; can be a mechanical connection, or an electrical connection; may be directly connected, or indirectly connected through intervening media, or may be in internal communication between two devices, elements or components. The specific meaning of the above terms in the present application can be understood by those of ordinary skill in the art as appropriate.

It should be noted that the embodiments and features of the embodiments in the present application may be combined with each other without conflict. The present application will be described in detail below with reference to the embodiments with reference to the attached drawings.

Referring to fig. 1-5, a cleaning device for producing mosquito repellent fabric comprises an installation base plate 1, a cleaning chamber 2, a drying chamber 20, a tensioning structure, a cleaning structure and a winding structure;

the upper surface of the mounting base plate 1 is fixedly connected with one end of a first support frame 4, the other end of the first support frame 4 is fixedly connected with a cleaning chamber 2, a cleaning structure is fixedly mounted in an inner cavity of the cleaning chamber 2 and comprises a fixed block 11, bristles 12, a roller 13 and an arc-shaped fixed plate 14, the inner cavity side wall of the cleaning chamber 2 is fixedly connected with one end of the fixed block 11, the other end of the fixed block 11 is fixedly connected with the arc-shaped fixed plate 14, the arc-shaped wall of the arc-shaped fixed plate 14 is fixedly connected with the bristles 12, the inner cavity side wall of the cleaning chamber 2 is rotatably connected with the roller 13, the arc-shaped surface of the roller 13 is contacted with the bristles 12, the surface side wall of the cleaning chamber 2 is fixedly mounted with a tensioning structure, and the tensioning structure comprises a fixed plate 15, a connecting sleeve rod 16, a spring 17, a connecting, one end of a fixed plate 15 is fixedly connected to the side wall of the surface of the cleaning chamber 2, one end of a connecting loop bar 16 is fixedly connected to both sides of the other end of the fixed plate 15, connecting rods 18 are slidably connected to the inner cavities of the two connecting loop bars 16, one end of a spring 17 is fixedly connected to the upper ends of the two connecting rods 18, the other ends of the two springs 17 are fixedly connected to the upper wall of the inner cavity of the connecting loop bar 16, and a pressing roller 19 is rotatably connected between the two connecting loop bars 16 and between the bottom ends of the two connecting rods 18;

the utility model discloses a drying chamber, including mounting plate 1, the one end of upper surface department fixedly connected with second support frame 21 of mounting plate 1, the other end department fixedly connected with drying chamber 20 of second support frame 21, the inner chamber lateral wall department fixedly connected with rectangle spout 24 of drying chamber 20, sliding connection has T shape elevator 25 on the rectangle spout 24, the one end department fixedly connected with rectangular shell 26 of T shape elevator 25, the upper surface department fixed mounting of drying chamber 20 has servo motor 22, servo motor 22's the terminal one end of fixedly connected with threaded rod 23 of output shaft, the other end of threaded rod 23 runs through drying chamber 20 and extends to and is connected with rotating between the lateral wall of rectangle spout 24 in the rectangle spout 24, threaded connection between threaded rod 23 and the T shape elevator 25, the upper surface department fixed mounting of mounting plate 1 has the rolling structure, the rolling structure includes backup pad 30, Wind-up roll 31, first rotation wheel 32 and dwang 36, the one end of the equal fixedly connected with backup pad 30 of upper surface both sides department of mounting plate 1, two rotate between the top of backup pad 30 and be connected with dwang 36, fixedly connected with wind-up roll 31 on the arc wall of dwang 36, the first rotation wheel 32 of fixedly connected with of one end department of dwang 36.

The two sides of the cleaning chamber 2 and the drying chamber 20 are both provided with an inlet and an outlet; a flow guide hole is formed in the bottom end of the cleaning chamber 2, and a collecting tank 3 is arranged on the lower surface of the cleaning chamber 2; a liquid storage tank 5 is fixedly mounted on the upper surface of the mounting base plate 1, a pump 7 is fixedly mounted on the upper surface of the liquid storage tank 5, a water inlet end of the pump 7 is fixedly connected with one end of a liquid inlet pipe 6, the other end of the liquid inlet pipe 6 penetrates through the liquid storage tank 5 and extends to the bottom side of an inner cavity of the liquid storage tank 5, a water outlet end of the pump 7 is fixedly connected with one end of a liquid outlet pipe 8, a fixed pipe 9 is fixedly mounted on the upper wall of the inner cavity of the cleaning chamber 2, and one end of the liquid outlet pipe 8 extends to the fixed pipe 9 and is communicated with the fixed pipe 9; a plurality of spray heads 10 are fixedly arranged on the arc-shaped surface of the fixed pipe 9, and the spray heads 10 are arranged at equal intervals; the cleaning and brushing structures are arranged on the side walls of the two sides of the inner cavity of the cleaning chamber 2 alternately; an air heater 27 is fixedly installed on the upper surface of the drying chamber 20, an output end of the air heater 27 is fixedly connected with one end of a connecting air pipe 28, the other end of the connecting air pipe 28 extends and is fixed to the side wall of the rectangular shell 26 and is communicated with the inner cavity of the rectangular shell 26, the connecting air pipe 28 is made of a soft material, and a plurality of ventilation openings are formed in the side wall of the inner cavity of the rectangular shell 26; three second guide rollers 37 are rotatably connected in the inner cavity of the drying chamber 20, two of the second guide rollers 37 are positioned at the lower side of the inner cavity of the drying chamber 20, and the other second guide roller 37 is positioned at the upper side of the inner cavity of the drying chamber 20; a second servo motor 35 is fixedly installed on the side wall of the supporting plate 30, a second rotating wheel 34 is fixedly connected at the tail end of an output shaft of the second servo motor 35, and a belt 33 is sleeved between the second rotating wheel 34 and the first rotating wheel 32; a guide roller 29 is rotatably connected to an outlet of the drying chamber 20.

When the cleaning machine is used, electrical components appearing in the cleaning machine are externally connected with a power supply and a control switch, firstly, fabric to be cleaned sequentially bypasses a compression roller 19, a roller 13, a second guide roller 37 and a guide roller 29 and is finally wound on a winding roller 31, the second rotating wheel 34 is driven to rotate through the work of a second servo motor 35, the first rotating wheel 32 is driven to rotate through the rotation of the second rotating wheel 34, and further the rotating rod 36 and the winding roller 31 are driven to rotate, so that the winding roller 31 winds the fabric, cleaning water is filled in an inner cavity of a liquid storage box 5, the cleaning water in the liquid storage box 5 is conveyed to a fixed pipe 9 through the work of a machine pump 7, the cleaning water is uniformly sprayed on the fabric through spray nozzles 10 on the fixed pipe 9, the fabric is washed, and when the fabric is dragged and moved, the fabric is clamped through the two compression rollers 19 of a tensioning structure, the fabric is tensioned, when the fabric is dragged to move to the roller 13, the fabric is contacted with the brush bristles 12 through the movement of the fabric, the brush bristles 12 clean the fabric, the multiple cleaning structures can clean both sides of the fabric, so that foreign matters, dust and the like on the surface of the fabric are thoroughly removed, the cleaning effect is good, the fabric enters an inner cavity of the drying chamber 20 after being cleaned, hot air is conveyed to the inside of the rectangular shell 26 through the work of the hot air blower 27 and is sprayed on the fabric through the vent holes on the rectangular shell 26, the fabric is dried by blowing, meanwhile, the threaded rod 23 is driven to rotate by the work of the servo motor 22, the T-shaped lifting block 25 is driven to lift through the rotation of the threaded rod 23 in the T-shaped lifting block 25, the rectangular shell 26 is driven to lift, so that the rectangular shell 26 can spray the hot air on the fabric back and forth, and the fabric is dried more uniformly, the stoving effect is better, and the surface fabric after the stoving is rolled up to wind-up roll 31 at last, accomplishes work, and the compact structure of this device, work efficiency is higher, is fit for a large amount of surface fabric cleaning work.

The application has the advantages that:

1. the device is reasonable in structure and convenient to use, can clean and dry the fabric to be processed, and can roll the fabric after cleaning and drying;

2. the device has a brushing structure, both side surfaces of the fabric can be brushed through the brushing structure, foreign matters, dust and the like on the surface of the fabric can be thoroughly removed, brushing is uniform, and the fabric cleaning effect is better;

3. this device can carry out even hot-blast drying around the surface fabric, and drying efficiency is higher, dries comparatively evenly thoroughly, further improves the machining efficiency of surface fabric.

The above description is only a preferred embodiment of the present application and is not intended to limit the present application, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, improvement and the like made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. A cleaning device for producing mosquito repellent fabrics is characterized in that: comprises a mounting bottom plate (1), a cleaning chamber (2), a drying chamber (20), a tensioning structure, a cleaning structure and a winding structure;

the cleaning device is characterized in that one end of a first support frame (4) is fixedly connected to the upper surface of the mounting base plate (1), the other end of the first support frame (4) is fixedly connected with a cleaning chamber (2), a cleaning structure is fixedly installed in the inner cavity of the cleaning chamber (2), the cleaning structure comprises a fixed block (11), bristles (12), a roller (13) and an arc-shaped fixed plate (14), one end of the fixed block (11) is fixedly connected to the inner cavity side wall of the cleaning chamber (2), the other end of the fixed block (11) is fixedly connected with the arc-shaped fixed plate (14), the bristles (12) are fixedly connected to the arc-shaped wall of the arc-shaped fixed plate (14), the roller (13) is rotatably connected to the inner cavity side wall of the cleaning chamber (2), the arc-shaped surface side wall of the roller (13) is in contact with the bristles (12), and a tensioning structure is fixedly installed at the, the tensioning structure comprises a fixed plate (15), connecting sleeve rods (16), springs (17), connecting rods (18) and a pressing roller (19), one end of the fixed plate (15) is fixedly connected to the side wall of the surface of the cleaning chamber (2), one end of each connecting sleeve rod (16) is fixedly connected to each of two sides of the other end of the fixed plate (15), the connecting rods (18) are slidably connected to inner cavities of the two connecting sleeve rods (16), one end of each spring (17) is fixedly connected to each of the upper ends of the two connecting rods (18), the other ends of the two springs (17) are fixedly connected to the upper wall of the inner cavity of each connecting sleeve rod (16), and the pressing roller (19) is rotatably connected between the two connecting sleeve rods (16) and between the bottom ends of the two connecting rods (18);

the upper surface of mounting plate (1) department fixedly connected with one end of second support frame (21), the other end department fixedly connected with drying chamber (20) of second support frame (21), the inner chamber lateral wall department fixedly connected with rectangle spout (24) of drying chamber (20), sliding connection has T shape elevator (25) on rectangle spout (24), the one end department fixedly connected with rectangle shell (26) of T shape elevator (25), the upper surface department fixed mounting of drying chamber (20) has servo motor (22), the terminal department fixedly connected with one end of threaded rod (23) of output shaft of servo motor (22), the other end of threaded rod (23) runs through drying chamber (20) and extends to in rectangle spout (24) and is connected with rotating between the lateral wall of rectangle spout (24), threaded connection between threaded rod (23) and T shape elevator (25), the upper surface department fixed mounting of mounting plate (1) has the rolling structure, the rolling structure includes backup pad (30), wind-up roll (31), first rotation wheel (32) and dwang (36), the one end of the equal fixedly connected with backup pad (30) of upper surface both sides department of mounting plate (1), two rotate between the top of backup pad (30) and be connected with dwang (36), fixedly connected with wind-up roll (31) on the arc wall of dwang (36), the first rotation wheel (32) of fixedly connected with of one end department of dwang (36).

2. The cleaning device for producing the mosquito repellent fabric according to claim 1, characterized in that: and the two sides of the cleaning chamber (2) and the drying chamber (20) are both provided with an inlet and an outlet.

3. The cleaning device for producing the mosquito repellent fabric according to claim 1, characterized in that: the bottom of purge chamber (2) department has seted up the water conservancy diversion hole, the lower surface department of purge chamber (2) is provided with collecting vat (3).

4. The cleaning device for producing the mosquito repellent fabric according to claim 1, characterized in that: the upper surface department fixed mounting of mounting plate (1) has liquid reserve tank (5), the upper surface department fixed mounting of liquid reserve tank (5) has quick-witted pump (7), the one end of the end fixedly connected with feed liquor pipe (6) of intaking of machine pump (7), the other end of feed liquor pipe (6) runs through liquid reserve tank (5) and extends to the inner chamber bottom side department of liquid reserve tank (5), the one end of the play water end fixedly connected with drain pipe (8) of machine pump (7), the inner chamber upper wall department fixed mounting of purge chamber (2) has fixed pipe (9), the one end of drain pipe (8) extend to fixed pipe (9) department and with fixed pipe (9) between UNICOM each other.

5. The cleaning device for producing the mosquito repellent fabric according to claim 1, characterized in that: a plurality of spray heads (10) are fixedly mounted on the arc-shaped surface of the fixed pipe (9) and are arranged at equal intervals of the spray heads (10).

6. The cleaning device for producing the mosquito repellent fabric according to claim 1, characterized in that: the cleaning and brushing structures are arranged on the side walls of the two sides of the inner cavity of the cleaning chamber (2) in an alternating mode.

7. The cleaning device for producing the mosquito repellent fabric according to claim 1, characterized in that: the upper surface department fixed mounting of drying chamber (20) has air heater (27), the output fixedly connected with of air heater (27) connects the one end of tuber pipe (28), the other end of connecting tuber pipe (28) extend fixed to the lateral wall department of rectangle shell (26) and with communicate each other between the inner chamber of rectangle shell (26), it constitutes for soft material to connect tuber pipe (28), a plurality of vents have been seted up to the inner chamber lateral wall department of rectangle shell (26).

8. The cleaning device for producing the mosquito repellent fabric according to claim 1, characterized in that: and three second guide rollers (37) are rotatably connected in the inner cavity of the drying chamber (20), wherein two second guide rollers (37) are positioned on the lower side of the inner cavity of the drying chamber (20), and the other second guide roller (37) is positioned on the upper side of the inner cavity of the drying chamber (20).

9. The cleaning device for producing the mosquito repellent fabric according to claim 1, characterized in that: a second servo motor (35) is fixedly mounted at the side wall of the supporting plate (30), a second rotating wheel (34) is fixedly connected at the tail end of an output shaft of the second servo motor (35), and a belt (33) is sleeved between the second rotating wheel (34) and the first rotating wheel (32).

10. The cleaning device for producing the mosquito repellent fabric according to claim 1, characterized in that: the outlet of the drying chamber (20) is rotatably connected with a guide roller (29).