Lubricating device for rotary cover plate and carding machine

Abstract

The utility model relates to a lubricating device and a carding machine for a rotary cover plate, which comprise a shell, a lubricating block and a coil spring, and the coil spring is configured to apply pressure to the lubricating block so as to enable the lubricating block to be pressed to the sliding surface of the rotary cover plate. Wherein a sliding groove is formed in the shell, the sliding groove extends in the moving direction of the lubricating block, the coil spring is clamped on the pin, and the pin penetrates through the sliding groove and can be guided in the sliding groove.

Description

TECHNICAL FIELD

[0001] The utility model relates to a kind of lubricating device and carding machine for rotary apron. BACKGROUND

[0002] In a spinning mill, fibre material from an opening and cleaning department is supplied to a carding machine by a pipe conveying system, the fibre material is cleaned and parallelized by the carding machine and is produced into sliver, which is further processed by downstream spinning machines to form yarn. In the carding machine, in addition to stationary aprons and separating modules, rotary aprons are also used. The rotary aprons are guided along the surface of the drum and move along or against the direction of rotation of the drum. The guidance of the rotary aprons is carried out on both sides of the drum with stationary mounted curved tracks. The rotary aprons are pulled on the guide by means of a chain or an endless belt, are transported in a loop and return to the starting point again.

[0003] A carding gap is formed between the rotary apron and the surface of the drum. In order to maintain the carding gap with the dimensions defined by the guide, the rotary apron is pressed against the guide curved track with the arrangement of the transport elements during the travel on the guide. The resulting frictional force must be overcome by the drive of the rotary apron.

[0004] In order to minimize the frictional force and to make the wear on the guide and on the sliding surfaces of the rotary apron as small as possible, different devices have been proposed in the prior art.

[0005] CN201183857Y proposes a pressurized graphite box used on a carding machine, comprising a box body and a graphite block, a pressure spring applies pressure to the graphite block, and the tightness of the pressure spring is adjusted by adjusting screw and adjusting nut, so as to adjust the pressure of the graphite block on the apron. However, during use and operation, as the graphite block is consumed, the graphite block gradually drops, and the pressure of the pressure spring on the graphite block changes accordingly. If the pressure of the graphite block on the apron is to be maintained, the adjusting screw must be readjusted.

[0006] CN113981573B proposes a carding machine apron lubrication anti-lock system, which is composed of a hollow cuboid cavity structure with two open ends by cooperation of the control plate and the bracket clamping groove, providing a sliding channel for the lubricating block, and the coil spring applies pressure to the lubricating block to achieve the purpose of controlling the lubricating block and preventing the lubricating block from being stressed too much or separating from the contact surface. However, the structure formed by the clamping groove cooperation is complex, and the installation and maintenance adjustment of the coil spring are not convenient. SUMMARY

[0007] The utility model aims at providing a kind of lubricating device and carding machine for rotary apron of simple structure, good stability, installation and maintenance convenient.

[0008] To achieve the object, a lubricating device for a rotary cover plate is provided, comprising:

[0009] a housing, the housing is formed with a sliding channel for a lubricating block, and the housing is connected with a fixing part for fixing the housing;

[0010] a lubricating block, the lubricating block is arranged in the sliding channel of the housing in a shape fitting manner and can slide in the sliding channel;

[0011] a coil spring, the coil spring is configured to apply pressure to the lubricating block so that the lubricating block is pressed to the sliding surface of the rotary cover plate, wherein the outer end of the coil spring is fixed on the housing, and the coil spring part is pressed against the lubricating block;

[0012] Advantageously, the housing is provided with a sliding groove extending along the movement direction A of the lubricating block, and the coil spring is clamped in the middle of the pin, the pin passes through the sliding groove and is guided in the sliding groove.

[0013] Preferably, the sliding groove has an extension groove substantially transverse to the movement direction A of the lubricating block at one end away from the lubricating surface of the lubricating block. The extension groove can temporarily support the pin and the coil spring, providing convenience for replacing and / or maintaining the lubricating block.

[0014] In order to prevent the pin from moving laterally transverse to the movement direction of the lubricating block, causing the pin to fall out of the sliding groove and the pressure of the coil spring on the lubricating block to be unstable, the pin is positioned in the axial direction of the housing along the side surface of the housing by the locking washer fixed on both sides of the pin.

[0015] The housing is preferably punched and folded from sheet metal to form a hollow structure with three sheet metal side surfaces, one open side surface S0 and two open ends, the two sheet metal side surfaces adjacent to the open side surface S0 are respectively provided with corresponding sliding grooves and extension grooves, the side surface opposite to the open side surface S0 is provided with a window and an outward protruding part, the outer end of the coil spring is fixed to the protruding part by a rivet, the coil spring is clamped in the middle of the pin and located between the two sheet metal side surfaces, and the coil spring part is pressed against the lubricating block.

[0016] The lubricating surface of the lubricating block can cover the entire sliding surface of each rotary cover plate, and the lubricating block has a rectangular lubricating surface with a length B of 35 mm and a width C of 28 mm, so as to avoid damage to the lubricating block caused by sinking into the groove of the sliding surface of the rotary cover plate.

[0017] The lubricating device has the advantages of simple structure, good stability, convenient installation and maintenance, can better lubricate the sliding surface of the rotary cover plate, and can effectively prevent damage to the lubricating block.

[0018] The further purpose of the utility model is to provide a carding machine, the carding machine includes the lubricating device for the rotary flat, the lubricating device simple structure, good stability, convenient maintenance, improved the lubricating effect of lubricating block to the sliding surface of rotary flat. BRIEF DESCRIPTION OF DRAWINGS

[0019] The above and other objects, features, aspects and advantages of the utility model will become apparent from the following detailed description of the embodiments, which is to be taken in conjunction with the accompanying drawings, which illustrate by way of example the principles of the utility model, and in which like reference numerals refer to similar parts or elements throughout various figures in which

[0020] Figure 1 Fig. 1 shows a schematic view of a rotary flat carding machine according to the prior art;

[0021] Figure 2 Fig. 2 shows a schematic view of a lubricating device for a rotary flat;

[0022] Figure 3 Fig. 3 shows a schematic view of the structure of the lubricating device of the utility model;

[0023] Figure 4 Fig. 4 shows a schematic view of the structure of the lubricating device of the utility model from another perspective.

[0024] Reference signs in the drawing are: 1, carding machine cylinder; 2, rotary flat assembly; 3, feeding device; 4, doffer roller; 5, receiving area; 6, deflection roller; 7, rotary flat; 8, flat cleaning unit; 9, driving component; 10, flexible curve rail; 11, flat head; 12, slide shoe; 13, sliding surface; 14, lubricating surface; 20, housing; 21, fixed part; 22, sliding groove; 23, pin; 24, locking washer; 25, extension groove; 26, rivet; 27, protruding part; 30, lubricating block; 40, coil spring; 41, outer end; 42, coil spring part. DETAILED DESCRIPTION

[0025] Figure 1 Fig. 1 shows a schematic view of a rotary flat carding machine. From the upstream equipment, the fiber material supplied by the feeding device 3 is opened and the fiber material is conveyed to the carding machine cylinder 1. The carding machine cylinder 1 works together with the rotary flat 7, so as to further make the fiber parallel. The rotary flat 7 is cleaned by the flat cleaning unit 8. After a plurality of cycles on the carding machine cylinder 1, some fiber materials are transferred from the carding machine cylinder 1 to the doffer roller 4, and are supplied to the receiving area 5.

[0026] The rotary flat 7 belongs to the rotary flat aggregate 2. The rotary flat 7 is moved over the cylinder surface via the deflection roller 6 by means of a drive member 9, for example a ring belt or chain. The underside of the rotary flat 7 is provided with a card clothing. The cylinder 1 of the card also has a card clothing. Between the two card clothings there is a gap, the so-called card gap. The rotary flat 7 is guided along the cylinder 1 of the card on a flexible curve rail 10. By fastening the position of the flexible curve rail 10 fixedly on the frame, the card gap can be set precisely. The rotary flat 7 can be moved along or against the direction of rotation of the cylinder 1 of the card. Due to the structural arrangement of the deflection roller 6 of the rotary flat aggregate 2, the rotary flat 7 is pressed onto the flexible curve rail 10 in order to achieve a play-free guidance of the rotary flat 7.

[0027] Figure 2 An illustration of the lubricating device for the rotary flat 7 is shown when it is lubricated. The rotary flat 7 corresponds to the illustration in Figure 1 . However, the rotary flat 7 is shown in reverse because the lubrication of the rotary flat 7 takes place during the return of the rotary flat 7. The flat head 11 is attached to the rotary flat 7. The drive member 9 and the slide shoe 12 with the sliding surface 13 are fixed on the flat head 11. The lubricating block 30 is arranged in the housing 20 in such a way that it is pressed onto the sliding surface 13 via elastic means, for example a spring or a coil spring 40. The lubricating device is fixedly mounted on the frame of the carding machine by means not shown here, through which the rotary flat 7 is moved. In this way the sliding surface 13 is applied with lubrication by the lubricating surface 14 of the lubricating block 30.

[0028] Figure 3 and Figure 4An embodiment of the lubricating device is shown from different perspectives, and the specific structure of the lubricating device is shown, which mainly comprises a shell 20, a lubricating block 30 and a coil spring 40. Among them, the shell 20 is connected with a fixing part 21 for fixing the shell, and through the fixing part 21, the shell 20 is fixed to the rack of the carding machine. The shell 20 can be punched and folded from a plate material to form a hollow structure with three plate material sides and one open side S0 and two open ends, so that a sliding channel is formed inside, and the cross section of the sliding channel is rectangular. The lubricating block 30 is a rectangular solid, and the cross-sectional shape is consistent with the sliding channel, so it can slide in direction A along the sliding channel of the shell 20. Among them, two sides adjacent to the open side S0 are respectively provided with corresponding sliding grooves 22, the sliding grooves 22 extend along the direction A of the movement of the lubricating block 30, the sliding grooves 22 have an extension groove 25 at one end away from the lubricating surface 14 of the lubricating block 30, and the extension groove 25 is substantially transverse to the moving direction A of the lubricating block 30, preferably, the extension groove 25 can be slightly acute with the direction A. In order to facilitate the installation and fixation of the coil spring 40, a window and an outward protruding part 27 are arranged on the side opposite to the open side S (close to one end of the lubricating surface 14). The outer end 41 of the coil spring 40 is fixed on the protruding part 27 by a rivet 26, the coil spring 40 is clamped in the middle of the pin 23, and the coil spring part 42 thereof presses against the lubricating block 30 to apply pressure to the lubricating block 30. The two ends of the pin 23 respectively pass through the sliding grooves 22 and are guided in the sliding grooves 22. When the pin 23 drives the coil spring 40 to move to the extension groove 25, the pin 23 can be temporarily clamped at the extension groove 25, which is beneficial for the maintenance and / or replacement of the lubricating block by the staff. Locking washers 24 are arranged on both sides of the pin 23, and the locking washers 24 cooperate with the two sides of the shell 20 to position the pin 23 in the axial direction of the pin 23, thereby ensuring the stability of the lubricating block 30. The lubricating surface 14 of the lubricating block 30 can cover the entire sliding surface of each rotary cover plate, and the size of the lubricating surface of the lubricating block 30 is approximately rectangular structure with length B=35mm and width C=28mm, thereby avoiding the jump of the lubricating block when passing through the sliding surface of the rotary cover plate, which will cause damage to the lubricating block.

[0029] The utility model also relates to a kind of carding machines, and the carding machine includes the lubricating device for rotary cover plate described above. The lubricating device is simple in structure, good in stability, convenient to maintain, and the lubricating effect of the lubricating block is improved.

[0030] The above specific embodiments further illustrate the purpose, technical scheme and beneficial effects of the utility model, and it should be understood that the above description is only for specific embodiments of the utility model, and is not used to limit the utility model, and any modification, equivalent replacement, improvement, etc. within the spirit and principle of the utility model should be included in the protection scope of the utility model.

Claims

1. A lubricating device for a rotary cover plate, comprising: - a housing (20) formed with a sliding channel for a lubricating block (30), and a fixing portion (21) connected to the housing (20) for fixing the housing; - a lubricating block (30) that is fitted in the sliding channel of the housing (20) and can move in the sliding channel; - a coil spring (40) configured to apply pressure to the lubricating block (30) so that the lubricating block (30) is pressed against a sliding surface (13) of the rotary cover plate, wherein an outer end (41) of the coil spring (40) is fixed to the housing (20), and a coil spring portion (42) of the coil spring (40) is pressed against the lubricating block (30); characterized in that the housing (20) is provided with a sliding groove (22) extending along a direction (A) of movement of the lubricating block (30), and the coil spring (40) is clamped on a pin (23) that passes through the sliding groove (22) and can be guided in the sliding groove (22).

2. The lubricating device for a swivel cover plate according to claim 1, characterized by the sliding groove (22) has an extension groove (25) transverse to the direction (A) of movement of the lubricating block (30) at an end away from a lubricating surface (14) of the lubricating block (30).

3. The lubricating device for a swivel cover plate according to claim 1 or 2, characterized in that, the pin (23) is positioned in an axial direction of the pin (23) by locking washers (24) on both sides.

4. The lubricating device for a rotary cover according to claim 1 or 2, characterized by the housing (20) is formed by stamping and folding a sheet metal into a hollow structure with three sheet metal sides, one open side (SO), and two open ends, and the two sheet metal sides adjacent to the open side (SO) are respectively provided with corresponding sliding grooves (22) and extension grooves (25), and the side opposite to the open side (SO) is provided with a window and an outward protrusion (27), the outer end (41) of the coil spring (40) is fixed to the protrusion (27) by a rivet (26), and the coil spring (40) is clamped in the middle of the pin (23) with the coil spring portion (42) pressed against the lubricating block (30).

5. The lubricating device for a rotary cover plate according to claim 1 or 2, characterized by the lubricating surface (14) of the lubricating block (30) can cover the entire sliding surface (13) of each rotary cover plate.

6. The lubricating device for a rotary cover plate according to claim 5, wherein the lubricating block (30) has a rectangular lubricating surface with a length (B) of 35 mm and a width (C) of 28 mm.

7. A carding machine characterized in that a lubricating device for a rotary cover plate according to any one of claims 1 to 6.

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