Running track supporting structure for polyimide film stretcher

Abstract

The utility model discloses a polyimide film stretcher operation track support structure, which comprises a transmission chain, the bottom end of the transmission chain is provided with a support assembly contacted with a track, and the support assembly comprises a bearing frame fixedly installed at the bottom end of the transmission chain and a rolling bearing rotatably connected in the bearing frame. A first mounting block is fixedly mounted in the bearing frame, a first cleaning iron brush making contact with the rolling bearing is rotationally connected to the inner side of the first mounting block, and a second mounting block is fixedly mounted in the bearing frame and located on the side opposite to the first mounting block; and the inner side of the second mounting block is rotationally connected with a second cleaning iron brush for scraping scrap iron on the surface of the bearing. Scrap iron on the surface of the rolling bearing can be cleaned through the first cleaning iron brush and the second cleaning iron brush, impurities accumulated on the surface of the rolling bearing are reduced, and abrasion of the rolling bearing is reduced.

Description

TECHNICAL FIELD

[0001] The utility model relates to film stretching equipment technical field, concretely a kind of for polyimide film stretcher running track support structure. BACKGROUND

[0002] In the inside of stretcher, in order to make film be able to obtain sufficient stretching, usually keep 400 degrees or so high temperature, film hangs on needle plate, uniform speed through stretcher and is stretched, needle plate is usually arranged on chain, but in the process of chain conveying, due to be influenced by self gravity and film weight, chain droops, to guarantee the production quality of film, usually support rail is set below chain, chain is supported using rail, guarantee chain even in the process of working.

[0003] According to the chain support frame for polyimide film stretcher running track disclosed in the announcement number CN213386229U, a high-temperature-resistant bearing is arranged in the protection cavity, the edge of the high-temperature-resistant bearing can pass through the bearing hole and be arranged outside the shell, the shell includes a fixed sheet and side sheets extending vertically downward on both sides of the fixed sheet, a long hole is formed in each side sheet, the length direction of the long hole is arranged in the vertical direction, a pin shaft passes through the long holes of the two side sheets, and the pin shaft can move in the vertical direction in the long holes, and the high-temperature-resistant bearing is sleeved on the pin shaft. When the bearing moves on the track and encounters iron filings and residues, the pin shaft is lifted upward, reducing the pressure on the bearing and preventing the damage of the balls in the bearing, thereby increasing the service life of the bearing.

[0004] The above-mentioned device sets an iron brush for cleaning the debris on the outer periphery of the bearing in the bearing hole, which can remove the iron filings and powder adhered to the bearing during movement. However, the cleaning effect of the iron brush may be limited. If there are many impurities or the impurities have high adhesion during the operation of the chain, the iron brush may not be able to completely remove the impurities on the surface of the bearing, resulting in accumulation of impurities on the surface of the bearing and increasing the wear of the bearing. UTILITY MODEL CONTENTS

[0005] The utility model aims at: in order to solve the above-mentioned device sets an iron brush for cleaning the debris on the outer periphery of the bearing in the bearing hole, which can remove the iron filings and powder adhered to the bearing during movement. However, the cleaning effect of the iron brush may be limited. If there are many impurities or the impurities have high adhesion during the operation of the chain, the iron brush may not be able to completely remove the impurities on the surface of the bearing, resulting in accumulation of impurities on the surface of the bearing and increasing the wear of the bearing. To solve the problem, a chain support frame for polyimide film stretcher running track is provided.

[0006] To achieve the above object, the utility model provides following technical scheme: a kind of running track support structure for polyimide film stretching machine, including transmission chain, the bottom end of the transmission chain is provided with the support assembly being contacted with track, the support assembly includes bearing bracket fixedly installed in the bottom end of transmission chain and rolling bearing rotationally connected in the inside of bearing bracket, first mounting block is fixedly installed in the inside of bearing bracket, and first mounting block inboard is fixedly installed with the first cleaning iron brush being contacted with rolling bearing, second mounting block is fixedly installed in the inside of bearing bracket and located the side opposite to first mounting block, and second mounting block inboard is fixedly installed with the second cleaning iron brush that the iron filings on bearing surface are scraped, the both ends of rolling bearing are rotationally connected with the rotating shaft being rotationally connected with bearing bracket, the one end of bearing bracket is provided with air slot, and the rotating shaft is fixedly installed with connecting block in the air slot inside of bearing bracket.

[0007] As the further scheme of the utility model: the connecting spring is fixedly installed in the air slot, and the top of connecting block is fixedly installed with connecting spring.

[0008] As the further scheme of the utility model: the one end of connecting block is fixed with sliding block being slidably connected with air slot, and sliding block is symmetrically fixed on both ends of connecting block, and the both ends of air slot inboard are symmetrically provided with sliding slot being slidably matched with sliding block.

[0009] As the further scheme of the utility model: the one end of bearing bracket is symmetrically provided with adjusting assembly for adjusting the angle of first cleaning iron brush and second cleaning iron brush, the adjusting assembly includes fixed sleeve being fixedly installed on the one end of bearing bracket, connecting shaft being fixedly installed with first mounting block and connecting plate being arranged in the inside of fixed sleeve, the connecting shaft is slidably connected with connecting plate through bearing bracket and fixed sleeve, reset spring is fixedly installed on the middle of connecting plate and fixed sleeve and is sleeved on the outside of connecting shaft, push rod is fixedly installed on the one end of connecting plate, and rotating sleeve is fixedly installed on the outside of fixed sleeve through push rod, and push rod is rotationally connected with fixed sleeve.

[0010] As the further scheme of the utility model: the outer periphery of connecting shaft is provided with limiting sliding slot for sliding of connecting plate, and limiting sliding slot is symmetrically provided on the outer periphery of connecting shaft.

[0011] As the further scheme of the utility model: the one end of connecting plate is uniformly fixedly installed with limiting tooth block being limited with fixed sleeve, and the inside of fixed sleeve is uniformly provided with limiting tooth slot being matched with limiting tooth block.

[0012] As the further scheme of the utility model: the top end of transmission chain is fixedly installed with mounting plate, and needle plate is uniformly fixedly installed on the top end of mounting plate.

[0013] Compared with prior art, the utility model has the advantages that:

[0014] The first cleaning iron brush and the second cleaning iron brush can clean the iron filings on the surface of the rolling bearing, reduce the accumulation of impurities on the surface of the rolling bearing, and reduce the use wear of the rolling bearing.

[0015] The adjusting assembly can drive the first mounting block in the bearing frame to rotate, thereby changing the contact angle of the first cleaning iron brush with the rolling bearing, and the iron filings can be quickly guided away from the surface of the rolling bearing along the inclined direction of the first cleaning iron brush, so that the iron filings are prevented from re-attaching to the surface of the rolling bearing. BRIEF DESCRIPTION OF DRAWINGS

[0016] Figure 1 is a schematic view of the overall structure of the utility model;

[0017] Figure 2 is a schematic view of the structure of the bearing frame in the utility model;

[0018] Figure 3 is a schematic view of the overall structure of the utility model Figure 2 is a schematic view of the local enlarged structure of position A in the utility model;

[0019] Figure 4 is a schematic view of the cross-sectional structure of the bearing frame in the utility model;

[0020] Figure 5 is a schematic view of the side cross-sectional structure of the bearing frame in the utility model;

[0021] Figure 6 is a schematic view of the local enlarged structure of position B in the utility model Figure 5 is a schematic view of the local enlarged structure of position B in the utility model

[0022] Figure 7 is a schematic view of the side structure of the bearing frame in the utility model.

[0023] In the figure: 1, transmission chain; 2, mounting plate; 3, needle plate; 4, supporting assembly; 41, bearing frame; 42, rolling bearing; 43, first mounting block; 44, first cleaning iron brush; 45, second mounting block; 46, second cleaning iron brush; 47, rotating shaft; 48, empty slot; 49, connecting block; 410, connecting spring; 411, sliding block; 412, sliding groove; 5, adjusting assembly; 51, fixed sleeve; 52, connecting shaft; 53, return spring; 54, connecting plate; 55, limiting sliding groove; 56, push rod; 58, limiting tooth groove; 59, limiting tooth block; 510, rotating sleeve. DETAILED DESCRIPTION

[0024] Clearly and completely describe the technical scheme in the embodiments of the utility model with reference to the drawings in the embodiments of the utility model, obviously, the described embodiment is only a part of the embodiment of the utility model, and is not all the embodiment. Based on the embodiment in the utility model, all other embodiments obtained by the ordinary skill in the art without making creative labor belong to the range of protection of the utility model.

[0025] In the description of the utility model, it needs to be explained that the orientation or position relation indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer" and the like is the orientation or position relation shown in the drawings, and is only for the convenience of describing the utility model and simplifying the description, and is not indicative or suggestive of the device or element indicated must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the utility model. In addition, the terms "first", "second", "third" are only for the purpose of description, and cannot be understood as indicative or suggestive of relative importance. In the description of the utility model, it needs to be explained that, unless otherwise explicitly specified and limited, the terms "mounting", "connection", "connection", "setting" should be understood broadly, for example, it can be fixedly connected, or it can be detachably connected, or integrally connected; it can be mechanically connected, or it can be electrically connected; it can be directly connected, or it can be indirectly connected through an intermediate medium, or it can be the communication between two elements. For the ordinary skill in the art, the specific meaning of the above terms in the utility model can be understood according to the specific circumstances. The embodiments of the utility model will be described below according to the overall structure of the utility model.

[0026] Referring to Figure 1 and Figure 7 , in the embodiments of the utility model, a running track support structure for polyimide film stretching machine, including transmission chain 1, transmission chain 1 bottom end is provided with the support assembly 4 that contacts with track, support assembly 4 includes the bearing frame 41 that is fixedly installed at the bottom end of transmission chain 1 and the rolling bearing 42 that is rotatably connected in the inside of bearing frame 41, the first mounting block 43 is fixedly installed in the inside of bearing frame 41, and the first cleaning iron brush 44 that is in contact with rolling bearing 42 is fixedly installed in the inside of first mounting block 43, the second mounting block 45 is fixedly installed in the inside of bearing frame 41 and is located at the opposite side of first mounting block 43, and the second cleaning iron brush 46 that scrapes the bearing surface iron filings is fixedly installed in the inside of second mounting block 45, the rotating shaft 47 that is rotatably connected with bearing frame 41 is rotatably connected at both ends of rolling bearing 42, the empty slot 48 is set up in one end of bearing frame 41, and the connecting block 49 is fixedly installed in the inside of empty slot 48 through bearing frame 41 in rotating shaft 47.

[0027] Adopting the above scheme: the first cleaning iron brush 44 is made of stainless steel material, the stainless steel material has high hardness, which can effectively strip the larger particle impurities from the bearing surface, the second cleaning iron brush 46 is made of silicon carbide material, the silicon carbide material has high hardness, which can effectively scrape the sticky debris on the surface of the rolling bearing 42, the first cleaning iron brush 44 and the second cleaning iron brush 46 can clean the iron filings on the surface of the rolling bearing 42, reduce the impurities accumulated on the surface of the rolling bearing 42, and reduce the use wear of the rolling bearing 42.

[0028] With reference to Figure 1 and Figure 7 The connecting spring 410 is fixedly installed in the hollow groove 48, and the connecting spring 410 is fixedly installed at the top end of the connecting block 49. The connecting block 49 is fixedly provided with a sliding block 411 in sliding connection with the hollow groove 48, and the sliding block 411 is symmetrically fixed to the two ends of the connecting block 49. The hollow groove 48 is symmetrically provided with a sliding groove 412 on the inner side, which is in sliding connection with the sliding block 411.

[0029] Adopting the above scheme: when the rolling bearing 42 moves on the track and encounters iron filings, the rolling bearing 42 can be lifted by the connecting spring 410, the sliding groove 412 and the sliding block 411 in the hollow groove 48, which reduces the pressure borne by the rolling bearing 42, prevents the damage of the rolling ball in the rolling bearing 42, and increases the service life of the rolling bearing 42.

[0030] With reference to Figure 1 and Figure 7 One end of the bearing frame 41 is symmetrically provided with an adjusting assembly 5 for adjusting the angle of the first cleaning iron brush 44 and the second cleaning iron brush 46. The adjusting assembly 5 comprises a fixed sleeve 51 fixedly installed at one end of the bearing frame 41, a connecting shaft 52 fixedly installed with the first mounting block 43, and a connecting plate 54 arranged in the fixed sleeve 51. The connecting shaft 52 is in sliding connection with the connecting plate 54 through the bearing frame 41 and the fixed sleeve 51. The connecting plate 54 is fixedly installed with a reset spring 53 at the middle part of the fixed sleeve 51 and outside the connecting shaft 52. One end of the connecting plate 54 is fixedly installed with a push rod 56, and the push rod 56 is fixedly installed with a rotating sleeve 510 outside the fixed sleeve 51. The push rod 56 is in rotating connection with the fixed sleeve 51.

[0031] Adopting the above scheme: the outer periphery of the fixed sleeve 51 is provided with scales for facilitating the staff to adjust the angle. The adjusting assembly 5 can drive the first mounting block 43 in the bearing frame 41 to rotate, thereby changing the contact angle of the first cleaning iron brush 44 to the rolling bearing 42. The iron filings will be quickly guided away from the surface of the rolling bearing 42 along the direction of the inclination of the first cleaning iron brush 44, which is conducive to preventing the iron filings from reattaching to the surface of the rolling bearing 42.

[0032] With reference to Figure 1 andFigure 7 The outer periphery of the connecting shaft 52 is provided with a limiting sliding groove 55 for sliding of the connecting plate 54, and the limiting sliding groove 55 is symmetrically provided on the outer periphery of the connecting shaft 52, and the one end of the connecting plate 54 is uniformly and circumferentially fixedly provided with a limiting tooth block 59 for limiting the fixed sleeve 51, and the inside of the fixed sleeve 51 is uniformly and circumferentially provided with a limiting tooth groove 58 matched with the limiting tooth block 59.

[0033] By the above scheme: the limiting tooth groove 58 and the limiting tooth block 59 can limit and fix the rotating sleeve 510 and the connecting plate 54 when the rotating adjustment of the connecting plate 54 and the rotating sleeve 510 is completed.

[0034] Referring to Figure 1 and Figure 7 The top end of the transmission chain 1 is fixedly provided with a mounting plate 2, and the top end of the mounting plate 2 is uniformly and fixedly provided with a needle plate 3.

[0035] The working principle of the utility model is: when the bearing frame 41 is driven by the transmission chain 1 to move inside the track, the first cleaning iron brush 44 inside the first mounting block 43 inside the bearing frame 41 can preliminarily clean the adhered iron filings on the surface of the rolling bearing 42, reducing the accumulation of iron filings on the surface of the rolling bearing 42, when the rolling bearing 42 continuously rotates, the second cleaning iron brush 46 inside the second mounting block 45 inside the bearing frame 41 can secondarily clean the iron filings that have not been cleaned in the gap on the surface of the rolling bearing 42, reducing the retention of iron filings on the surface of the rolling bearing 42, the first cleaning iron brush 44 and the second cleaning iron brush 46 can clean the iron filings on the surface of the rolling bearing 42, reducing the accumulation of impurities on the surface of the rolling bearing 42, reducing the use and wear of the rolling bearing 42, and simultaneously in use, according to the use condition, the rotating sleeve 510 drives the push rod 56 to slide on the outer periphery of the connecting shaft 52, and the limiting tooth block 59 at one end of the connecting plate 54 exits the inside of the limiting tooth groove 58 inside the fixed sleeve 51, at this time, the rotating sleeve 510 drives the push rod 56 to rotate, and further drives the connecting shaft 52 to rotate, the adjusting assembly 5 can drive the first mounting block 43 inside the bearing frame 41 to rotate, and further change the contact angle of the first cleaning iron brush 44 with the rolling bearing 42, which is quickly guided away from the surface of the rolling bearing 42 along the inclined direction of the first cleaning iron brush 44, which is beneficial to prevent the iron filings from re-attaching to the surface of the rolling bearing 42.

[0036] The above is only a preferred specific implementation manner of the utility model, but the protection scope of the utility model is not limited to this, any skilled person in the art can make equivalent replacement or change according to the technical scheme and the utility model concept of the utility model within the technical range disclosed by the utility model, which should be covered in the protection scope of the utility model.

Claims

1. A support structure for the running track of a polyimide film stretching machine, characterized in that, The system includes a transmission chain (1), at the bottom of which a support assembly (4) is provided that contacts the track. The support assembly (4) includes a bearing frame (41) fixedly installed at the bottom of the transmission chain (1) and a rolling bearing (42) rotatably connected inside the bearing frame (41). A first mounting block (43) is fixedly installed inside the bearing frame (41), and a first cleaning brush (44) that contacts the rolling bearing (42) is fixedly installed on the inner side of the first mounting block (43). A second mounting block (45) is fixedly installed inside and on the side opposite to the first mounting block (43). A second cleaning iron brush (46) for scraping off iron filings on the bearing surface is fixedly installed inside the second mounting block (45). The two ends of the rolling bearing (42) are rotatably connected to a rotating shaft (47) that is rotatably connected to the bearing frame (41). One end of the bearing frame (41) has a slot (48). The rotating shaft (47) passes through the bearing frame (41) and a connecting block (49) is fixedly installed inside the slot (48).

2. The track support structure for a polyimide film stretching machine according to claim 1, characterized in that, A connecting spring (410) is fixedly installed inside the empty slot (48), and the connecting spring (410) is fixedly installed at the top of the connecting block (49).

3. The track support structure for a polyimide film stretching machine according to claim 1, characterized in that, One end of the connecting block (49) is fixed with a sliding block (411) that is slidably connected to the empty groove (48), and the sliding block (411) is symmetrically fixed at both ends of the connecting block (49). The inner sides of the empty groove (48) are symmetrically provided with sliding grooves (412) that are slidably adapted to the sliding block (411).

4. The track support structure for a polyimide film stretching machine according to claim 1, characterized in that, One end of the bearing bracket (41) is symmetrically provided with an adjustment component (5) for adjusting the angle of the first cleaning brush (44) and the second cleaning brush (46). The adjustment component (5) includes a fixed sleeve (51) fixedly installed at one end of the bearing bracket (41), a connecting shaft (52) fixedly installed with the first mounting block (43), and a connecting plate (54) disposed inside the fixed sleeve (51). The connecting shaft (52) passes through the bearing bracket (41) and the fixed sleeve (51) and is slidably connected to the connecting plate (54). A return spring (53) is fixedly installed in the middle of the connecting plate (54) and the fixed sleeve (51) and sleeved on the outside of the connecting shaft (52). A push rod (56) is fixedly installed at one end of the connecting plate (54), and a rotating sleeve (510) is fixedly installed outside the fixed sleeve (51) through the fixed sleeve (51). The push rod (56) is rotatably connected to the fixed sleeve (51).

5. The track support structure for a polyimide film stretching machine according to claim 4, characterized in that, The connecting shaft (52) has a limiting groove (55) on its outer periphery for the connecting plate (54) to slide, and the limiting groove (55) is symmetrically opened on the outer periphery of the connecting shaft (52).

6. The track support structure for a polyimide film stretching machine according to claim 4, characterized in that, One end of the connecting plate (54) is uniformly and fixedly mounted with a limiting tooth block (59) that limits the fixed sleeve (51), and the fixed sleeve (51) is uniformly and uniformly surrounded by a limiting tooth groove (58) that matches the limiting tooth block (59).

7. The track support structure for a polyimide film stretching machine according to claim 1, characterized in that, The top end of the transmission chain (1) is fixedly mounted with an installation plate (2), and the top end of the installation plate (2) is uniformly fixedly mounted with needle plates (3).

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