Rubber sheet guiding and feeding device in brake tube weaving

Abstract

The utility model discloses a rubber sheet guiding and feeding device in brake tube weaving, which relates to the technical field of brake tube manufacture, and comprises a weaving machine, a feeding part and a guiding frame are arranged below the weaving machine, the feeding part comprises a feeding support, a rotating shaft, an internal expansion structure, an ejecting sleeve and a pull rod, the rotating shaft is arranged below the feeding support through a bearing seat, and the guiding frame is arranged below the rotating shaft. The internal expansion structure is arranged at the front end of the rotating shaft, the jacking sleeve is arranged at the head of the pull rod, the pull rod penetrates through the rotating shaft, and the front and rear sides of the internal expansion structure are provided with a front baffle plate and a rear baffle plate respectively; the guide frame comprises a guide wheel and a tensioning wheel. The device is compact in overall design structure, does not increase excessive working hours, adopts discharging and conveying of damping type coiled materials, is relatively simple in material disc replacement operation, is flexible in tensioning, prevents a middle rubber sheet from shifting, effectively plays a bonding role, effectively avoids the conditions of unqualified concentricity, unqualified swelling amount and the like of the brake pipe, is very helpful for batch production, and is suitable for large-scale production. The middle rubber sheet weaving machine is suitable for being popularized and used.

Description

Technical Field

[0001] The utility model relates to the technical field of brake pipe manufacturing, in particular to a film guiding and feeding device in the weaving of brake pipes. Background Art

[0002] Adding a middle rubber sheet to the double-layer braided wire of the brake pipe can effectively bond the two layers of yarn together and increase the expansion of the brake pipe, such as the authorized patent CN202222083852.4 double-layer polyester fiber wire braided brake pipe. However, in the daily manufacturing process, because the middle rubber sheet is thin, it may be folded and bent, resulting in incomplete wrapping and folding, which will affect the use of the hose and have the risk of reducing the quality of the brake pipe. Therefore, it is necessary to design and add a device that can effectively prevent the middle rubber sheet from shifting, effectively play a bonding role, and effectively avoid the concentricity of the brake pipe being unqualified, the expansion volume being unqualified, etc. Utility Model Content

[0003] The utility model aims to provide a film guiding and feeding device in the weaving of brake pipes to solve the problems raised in the above-mentioned background technology.

[0004] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a film guiding and feeding device for brake pipe weaving, comprising a weaving machine, a feeding part and a guide frame are arranged at the bottom of the weaving machine, the feeding part includes a feeding bracket, a rotating shaft, an internal expansion structure, a tightening sleeve and a pull rod, the rotating shaft is arranged below the feeding bracket through a bearing seat, the internal expansion structure is arranged at the front end of the rotating shaft, the tightening sleeve is arranged at the head of the pull rod, the pull rod is passed through the rotating shaft, and a front gear plate and a rear gear plate are respectively arranged at the front and rear of the internal expansion structure; the guide frame includes a guide wheel and a tensioning wheel.

[0005] Further: the feeding bracket is fixed to the bottom of the braiding machine, the tightening sleeve is sleeved in front of the rotating shaft, the rear of the tightening sleeve is fitted with the front end of the internal expansion structure, the rear of the internal expansion structure is fitted with the rear gear plate, and the internal expansion structure includes a sliding seat, a connecting plate and an internal expansion block.

[0006] Furthermore: the sliding seat is sleeved on the rotating shaft and connected to each other through splines, the sliding seat can slide freely on the rotating shaft, the sliding seat, the connecting plate and the inner expansion block are interconnected in turn through pins, and the connecting plate and the inner expansion block are distributed around the sliding seat.

[0007] Preferably, a sliding gasket and a guide bolt are provided at the rear of the inner expansion block, the rear of the sliding gasket is in contact with the rear stop plate, and the guide bolt passes through a strip hole provided on the rear stop plate.

[0008] Preferably, an arc groove is provided at the rear end of the rotating shaft, and the rotating shaft passes through two groups of bearing seats provided with damping bearings.

[0009] Preferably, a nut is provided at the head of the pull rod, a spring is provided between the nut and the tightening sleeve, and the middle of the front gear plate is sleeved outside the tightening sleeve.

[0010] Preferably: a fixing plate is provided on the tightening sleeve, a latch is passed through the middle of the fixing plate, and the rear of the latch is the front gear plate; adjustment holes are evenly arranged in parallel behind the pull rod, and a limit rod is passed through one of the adjustment holes, and the outer wall of the limit rod is in contact with the rear end surface of the rotating shaft.

[0011] Preferably, an auxiliary roller is further provided on the left side of the guide frame, and a guide tube is provided at the bottom of the braiding machine corresponding to the uppermost auxiliary roller, and baffles are provided on both sides of the guide wheel.

[0012] Compared with the prior art, the beneficial effects of the utility model are: the overall design structure of the utility model is compact, not cumbersome, will not increase too much working hours, adopts damping type coil material discharge and conveying, and the operation of changing material trays is relatively simple. Flexible tensioning makes the middle rubber sheet always keep a straight state, prevents the middle rubber sheet from shifting, effectively plays a bonding role, and effectively avoids the concentricity of the brake pipe and the expansion volume being unqualified. It is very helpful for mass production, can reduce the defects when weaving the middle rubber sheet, and is suitable for popularization and use. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 This is the overall structure diagram of the utility model;

[0014] Figure 2 It is the front view of the feeding part;

[0015] Figure 3 It is a schematic diagram of AA section view;

[0016] Figure 4 This is an enlarged schematic diagram of point B;

[0017] Figure 5 This is an enlarged schematic diagram of point C;

[0018] Figure 6 It is a schematic diagram of the feeding part state;

[0019] Figure 7 This is an enlarged schematic diagram of point D.

[0020] In the figure: 1, braiding machine, 2, feeding part, 3, guide frame, 4, guide wheel, 5, baffle, 6, tension wheel, 7, auxiliary roller, 8, guide tube, 21, feeding bracket, 22, bearing seat, 23, rotating shaft, 24, rear baffle plate, 25, internal expansion structure, 26, top tightening sleeve, 27, pull rod, 28, spring, 29, front baffle plate, 231, arc groove, 251, sliding seat, 252, connecting plate, 253, internal expansion fastener, 254, sliding gasket, 255, guide bolt, 261, fixing plate, 262, latch, 271, nut, 272, adjustment hole, 273, limit rod. DETAILED DESCRIPTION

[0021] The present invention will be described below based on the embodiments in conjunction with the accompanying drawings in the embodiments of the present invention. However, it is worth noting that the present invention is not limited to these embodiments. In the detailed description of the present invention below, some specific details are described in detail. However, for the parts that are not described in detail, those skilled in the art can also fully understand the present invention.

[0022] In addition, those skilled in the art should understand that the drawings are only provided to illustrate the purpose, features and advantages of the present invention, and the drawings are not actually drawn according to scale.

[0023] At the same time, unless the context clearly requires otherwise, the words "include", "comprises" and similar words throughout the specification and claims should be interpreted as inclusive rather than exclusive or exhaustive; that is, the meaning is "including but not limited to".

[0024] See also Figure 1-Figure 7 The utility model provides a technical solution: it includes a braiding machine 1, characterized in that: a feeding part 2 and a guide frame 3 are provided below the braiding machine 1, the feeding part 2 includes a feeding bracket 21, a rotating shaft 23, an internal expansion structure 25, a top tightening sleeve 26 and a pull rod 27, the rotating shaft 23 is arranged below the feeding bracket 21 through a bearing seat 22, the internal expansion structure 25 is arranged at the front end of the rotating shaft 23, the top tightening sleeve 26 is arranged at the head of the pull rod 27, the pull rod 27 is passed through the rotating shaft 23, and a front stop plate 29 and a rear stop plate 24 are respectively provided at the front and rear of the internal expansion structure 25; the guide frame 3 includes a guide wheel 4 and a tension wheel 6.

[0025] The feeding bracket 21 is fixedly connected to the bottom of the braiding machine 1, the tightening sleeve 26 is sleeved in front of the rotating shaft 23, the rear of the tightening sleeve 26 is in contact with the front end of the inner expansion structure 25, the rear of the inner expansion structure 25 is in contact with the rear gear plate 24, and the inner expansion structure 25 includes a sliding seat 251, a connecting plate 252 and an inner expansion block 253.

[0026] The sliding seat 251 is sleeved on the rotating shaft 23 and connected to each other through splines. The sliding seat 251 can slide freely on the rotating shaft 23. The sliding seat 251, the connecting plate 252 and the inner expansion block 253 are interconnected in sequence through pins. The connecting plate 252 and the inner expansion block 253 are distributed around the sliding seat 251.

[0027] A sliding gasket 254 and a guide bolt 255 are provided at the rear of the inner expansion block 253 . The rear of the sliding gasket 254 is in contact with the rear stop plate 24 , and the guide bolt 255 passes through a strip hole provided on the rear stop plate 24 .

[0028] The rear end of the rotating shaft 23 is provided with an arc groove 231, and the rotating shaft 23 passes through two sets of bearing seats 22 provided with damping bearings.

[0029] A nut 271 is disposed at the head of the pull rod 27 , a spring 28 is disposed between the nut 271 and the tightening sleeve 26 , and the middle of the front gear plate 29 is sleeved outside the tightening sleeve 26 .

[0030] The tightening sleeve 26 is provided with a fixing plate 261, a latch pin 262 is passed through the middle of the fixing plate 261, and the rear of the latch pin 262 is the front gear plate 29; the rear of the pull rod 27 is evenly and parallelly provided with adjustment holes 272, and a limit rod 273 is passed through one of the adjustment holes 272, and the outer wall of the limit rod 273 is in contact with the rear end surface of the rotating shaft 23.

[0031] An auxiliary roller 7 is also provided on the left side of the guide frame 3, and a guide tube 8 is provided at the bottom of the braiding machine 1 corresponding to the uppermost auxiliary roller 7. The upper end of the guide tube 8 is conical, which plays a role of closing. It is a commonly used method in this field, or it can be purchased from outside. Baffles 5 are provided on both sides of the guide wheel 4.

[0032] When using the utility model, the middle part of the guide tube 8 will pass through the inner tube, and then a material tray with a middle film is placed on the feeding part 2, similar to a film roll, and the head passes through the top of the guide wheel 4 and the bottom of the tension wheel 6 manually in sequence, and then passes through two auxiliary rollers 7 to reach the guide tube 8 and fit with the outer wall of the inner tube. The main operation of the utility model is that the middle film disc can be quickly replaced, and the damping bearing is used for slow feeding, and the non-powered passive feeding is used to ensure that the middle film is in a taut state during the feeding process and does not bend. When the middle film disc needs to be replaced, the pin 262 is pulled out, and then the front gear plate 29 is removed, and then the pull rod 27 is pulled by the limit rod 273 to release it from the outermost end of the arc groove 231 to the lowermost end of the arc groove 231 (as shown in the attached figure). Figure 7 As shown in FIG. 2 ), the tensioning structure 25 is then loosened because the tensioning sleeve 26 releases the front end of the sliding seat 251 (as shown in FIG. 2 ). Figure 4As shown), this is similar to the opening principle of an umbrella. Just remove the empty middle film disc and replace it with a new one. Repeat the above traction steps. After installation, reversely operate the front gear disc 29 and the tensioning structure 25 to set the disc in the feeding part 2. The operation is relatively simple and has good stability. The spring 28 is added for flexible tensioning, and the effect is good.

[0033] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A film guiding and feeding device for brake pipe weaving, comprising a weaving machine (1), characterized in that: A feeding part (2) and a guide frame (3) are provided below the braiding machine (1), wherein the feeding part (2) comprises a feeding bracket (21), a rotating shaft (23), an internal expansion structure (25), a tightening sleeve (26) and a pull rod (27), wherein the rotating shaft (23) is arranged below the feeding bracket (21) through a bearing seat (22), the internal expansion structure (25) is arranged at the front end of the rotating shaft (23), the tightening sleeve (26) is arranged at the head of the pull rod (27), and the pull rod (27) is inserted into the rotating shaft (23), and a front stop plate (29) and a rear stop plate (24) are provided at the front and rear of the internal expansion structure (25), respectively; and the guide frame (3) comprises a guide wheel (4) and a tension wheel (6).

2. A film guiding and feeding device for braiding a brake pipe according to claim 1, characterized in that: The feeding bracket (21) is fixedly connected to the bottom of the braiding machine (1), the tightening sleeve (26) is sleeved in front of the rotating shaft (23), the rear of the tightening sleeve (26) is in contact with the front end of the internal expansion structure (25), the rear of the internal expansion structure (25) is in contact with the rear gear plate (24), and the internal expansion structure (25) includes a sliding seat (251), a connecting plate (252) and an internal expansion block (253).

3. A film guiding and feeding device for braiding brake pipes according to claim 2, characterized in that: The sliding seat (251) is sleeved on the rotating shaft (23) and connected to each other via splines. The sliding seat (251) can slide freely on the rotating shaft (23). The sliding seat (251), the connecting plate (252) and the inner expansion block (253) are interconnected in sequence via pins. The connecting plate (252) and the inner expansion block (253) are distributed around the sliding seat (251).

4. The film guiding and feeding device for braiding a brake pipe according to claim 3, characterized in that: A sliding gasket (254) and a guide bolt (255) are provided at the rear of the inner expansion block (253); the rear of the sliding gasket (254) is in contact with the rear stop plate (24); and the guide bolt (255) passes through a strip hole provided in the rear stop plate (24).

5. The film guiding and feeding device for the weaving of brake pipes according to claim 2, characterized in that: The rear end of the rotating shaft (23) is provided with an arc groove (231), and the rotating shaft (23) is inserted into two groups of bearing seats (22) provided with damping bearings.

6. The film guiding and feeding device for the brake pipe weaving according to claim 1, characterized in that: The head of the pull rod (27) is provided with a nut (271), a spring (28) is provided between the nut (271) and the tightening sleeve (26), and the middle of the front gear plate (29) is sleeved outside the tightening sleeve (26).

7. A film guiding and feeding device for braiding a brake pipe according to claim 6, characterized in that: The tightening sleeve (26) is provided with a fixing plate (261), a latch pin (262) is passed through the middle of the fixing plate (261), and the rear of the latch pin (262) is the front gear plate (29); the rear of the pull rod (27) is evenly and parallelly provided with adjustment holes (272), and a limit rod (273) is passed through one of the adjustment holes (272), and the outer wall of the limit rod (273) is in contact with the rear end surface of the rotating shaft (23).

8. The film guiding and feeding device for the weaving of brake pipes according to claim 1, characterized in that: An auxiliary roller (7) is also provided on the left side of the guide frame (3), and a guide tube (8) is provided at the bottom of the braiding machine (1) corresponding to the uppermost auxiliary roller (7), and baffles (5) are provided on both sides of the guide wheel (4).

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