Needle type rolling chain clip device of polyimide film stretcher

Abstract

The utility model discloses a needle type rolling chain clip device of a polyimide film stretching machine, which comprises clip bodies arranged on a front chain link and a rear chain link, the clip bodies are arranged on a guide rail through a rolling assembly, and a needle plate is arranged on the clip bodies. The rolling assembly comprises an upper rolling bearing I and a lower rolling bearing I which are arranged on the inner side rail surface of the guide rail, a front rolling bearing II and a rear rolling bearing II which are arranged on the outer side rail surface of the guide rail, and a rolling bearing III arranged on the top rail surface of the guide rail; the rolling bearing III is tightly matched with the lining and is arranged on the clamp body through a screw, each rolling bearing II is arranged on the clamp body through a corresponding bolt and nut assembly, the upper rolling bearing I and the lower rolling bearing I are arranged on the clamp body through a screw rod, the screw rod is sleeved with a spacer bush, the upper rolling bearing I is tightly matched with the screw rod between the clamp body and the upper limiting plate, and the lower rolling bearing I is tightly matched with the screw rod between the clamp body and the lower limiting plate. The lower rolling bearing I is tightly matched on the screw rod between the lower limiting plate and the screw head, the spacer bush is positioned between the upper limiting plate and the lower limiting plate, and the limiting plates are installed between the front chain link and the rear chain link through the front pin shaft and the rear pin shaft.

Description

Technical Field

[0001] The utility model relates to a component structure of a polyimide film stretching machine, in particular to a needle-type rolling chain clip device of a polyimide film stretching machine. Background Art

[0002] When producing polyimide film, polyamic acid resin is usually formed into polyamic acid film through a casting machine, and then stretched and imidized through a high-temperature furnace to form a polyimide film. When the polyamic acid film enters the horizontal stretching machine, the two sides of the film need to be fixed or clamped.

[0003] The clamping devices on both sides of the film are chain clips or pin buckles installed on the chain of the annular guide rail component. The existing pin-type chain clips have the following two representative structures:

[0004] 1. "Needle plate support structure of polyimide film stretching machine" with authorization announcement number CN213382960U.

[0005] 2. "Needle plate chuck device for film stretching machine" with authorization announcement number CN202986087 U.

[0006] In the above two patented technologies, the needle plate pulling the film is fixed on the chain, and the chain runs on the track through the sprocket transmission. The track is designed as a groove structure, and the operation mode of the chain is non-full-range rolling, which is easy to cause friction loss to the track, thereby affecting the smooth operation of the chain. Utility Model Content

[0007] In view of the deficiencies in the prior art, the technical problem to be solved by the utility model is to propose a needle-type rolling chain clip device for a polyimide film stretching machine which can enable the stretching machine to run smoothly.

[0008] The polyimide film stretching machine needle type rolling chain clip device capable of solving the above technical problems comprises a clip body arranged on the front and rear chain links, the clip body is installed on the front and rear guide rails through a rolling assembly, and a needle plate is installed on the clip body. The difference is:

[0009] 1. The rolling assembly includes two upper and lower rolling bearings I arranged on the inner rail surface of the guide rail, two front and rear rolling bearings II arranged on the outer rail surface of the guide rail, and a rolling bearing III arranged on the top rail surface of the guide rail.

[0010] 2. The rolling bearing III is tightly fitted on the bushing and installed on the clip body by screws.

[0011] 3. Each rolling bearing II is installed on the clip body through the corresponding bolt and nut assembly.

[0012] 4. The upper and lower rolling bearings I are installed on the clip body through a screw rod, and a spacer sleeve is mounted on the screw rod. The upper rolling bearing I is tightly fitted on the screw rod between the clip body and the upper limit plate, and the lower rolling bearing I is tightly fitted on the screw rod between the lower limit plate and the screw head. The spacer sleeve is positioned between the upper limit plate and the lower limit plate, and each limit plate is installed between the front and rear chain links through the front and rear pin shafts I.

[0013] Furthermore, the upper and lower rolling bearings I and III are aligned in the center of the front and rear rolling bearings II.

[0014] Furthermore, the heights of the front and rear rolling bearings II are lower than the upper rolling bearing I.

[0015] Beneficial effects of the utility model:

[0016] In the structure of the needle-type rolling chain clip device of the polyimide film stretching machine of the utility model, the chain clip is composed of five rolling bearings to form a chain clip rolling system to ensure that the entire chain clip runs smoothly on the track, and the ejector pins on the needle plate buckle the two sides of the polyimide film to pull the film to run smoothly in the stretching machine. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is a front view of an implementation method of the utility model.

[0018] Figure 2 for Figure 1 A-A section view in.

[0019] Figure 3 for Figure 1 B-B section view in.

[0020] Figure 4 for Figure 2 C-direction view in.

[0021] Figure number identification: 1. Chain link; 2. Clip body; 3. Guide rail; 4. Rolling bearing I; 5. Rolling bearing II; 6. Rolling bearing III; 7. Screw; 8. Bolt and nut assembly; 9. Needle plate; 10. Spacer; 11. Screw; 12. Upper limit plate; 13. Lower limit plate; 14. Pin; 15. Bushing; 16. Plate ear; 17. Rib plate. DETAILED DESCRIPTION

[0022] The technical solution of the utility model is further described below in conjunction with the implementation modes shown in the accompanying drawings.

[0023] The utility model polyimide film stretching machine needle type rolling chain clip device comprises a clip body 2 installed on the front and rear chain links 1, the clip body 2 is installed on the front and rear guide rails 3 through a rolling assembly, a needle plate 9 with a top pin is installed on the end surface of the left part (inner part) of the clip body 2, the guide rail 3 is located outside and below the right part of the clip body 2, and the upper and lower parts between the front and rear chain links 1 are respectively installed with an upper limit plate 12 and a lower limit plate 13 through the front and rear pin shafts 14, such as Figure 1 , Figure 2 , Figure 3 , Figure 4 shown.

[0024] The rolling assembly includes two upper and lower rolling bearings I4 rolling on the inner (left) rail surface of the guide rail 3, two front and rear rolling bearings II5 rolling on the outer (right) rail surface of the guide rail 3, and a rolling bearing III6 rolling on the top rail surface of the guide rail 3, wherein:

[0025] 1. The rolling bearing III 6 is sleeved on the bushing 15 (interference fit), and a screw 7 is inserted into the bushing 15. The screw 7 mounts the rolling bearing III 6 and the bushing 15 on the right end surface of the clip body 2. Figure 2 shown.

[0026] 2. The front and rear rolling bearings II5 are installed on the plate ears 16 arranged at the front and rear ends of the right side end surface of the clip body 2 through the corresponding bolt and nut assemblies 8. Each plate ear 16 is connected to the clip body 2 through the corresponding rib plate 17. Figure 2 , Figure 3 , Figure 4 shown.

[0027] 3. The upper and lower rolling bearings Ⅰ4 are installed on the clip body 2 through a screw 11. The screw 11 is sleeved with a spacer 10. The screw 11 is screwed to the right bottom of the clip body 2 by relying on the external threaded portion at the top. The bare rod of the screw 11 passes through the corresponding through holes on the upper limit plate 12 and the lower limit plate 13. The spacer 10 is supported between the upper and lower limit plates 12 and 13. The upper rolling bearing Ⅰ4 is installed on the bare rod of the screw 11 between the upper limit plate 12 and the bottom of the clip body 2 by interference fit. The lower rolling bearing Ⅰ4 is installed on the bare rod of the screw 11 between the lower limit plate 13 and the screw head by interference fit. Figure 2 , Figure 3 , Figure 4 shown.

[0028] The upper and lower rolling bearings Ⅰ4 and Ⅲ6 are both located in the center of the front and rear rolling bearings Ⅱ5. The height of the front and rear rolling bearings Ⅱ5 is lower than that of the upper rolling bearing Ⅰ4. Figure 1 , Figure 2 , Figure 3 , Figure 4 shown.

Claims

1. A needle type rolling chain clip device for a polyimide film stretching machine, comprising a clip body (2) arranged on the front and rear chain links (1), the clip body (2) being mounted on the front and rear guide rails (3) through a rolling assembly, a needle plate (9) being mounted on the clip body (2), characterized in that: The rolling assembly comprises two upper and lower rolling bearings I (4) arranged on the inner rail surface of the guide rail (3), two front and rear rolling bearings II (5) arranged on the outer rail surface of the guide rail (3), and a rolling bearing III (6) arranged on the top rail surface of the guide rail (3); The rolling bearing III (6) is tightly fitted on the bushing (15) and is mounted on the clip body (2) via screws (7); Each rolling bearing II (5) is mounted on the clip body (2) via a corresponding bolt and nut assembly (8); The upper and lower rolling bearings I (4) are mounted on the clip body (2) through a screw (11), and a spacer sleeve (10) is mounted on the screw (11). The upper rolling bearing I (4) is tightly fitted on the screw (11) between the clip body (2) and the upper limit plate (12), and the lower rolling bearing I (4) is tightly fitted on the screw (11) between the lower limit plate (13) and the screw head. The spacer sleeve (10) is positioned between the upper limit plate (12) and the lower limit plate (13), and each limit plate is mounted between the front and rear chain links (1) through front and rear pins (14).

2. The needle-type rolling chain clip device for a polyimide film stretching machine according to claim 1, characterized in that: The upper and lower rolling bearings I (4) and rolling bearing III (6) are both aligned at the center of the front and rear rolling bearings II (5).

3. The needle-type rolling chain clip device of the polyimide film stretching machine according to claim 2, characterized in that: The heights of the front and rear rolling bearings II (5) are lower than the upper rolling bearing I (4).

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