Film slitting device for cold feed extruder
By designing the cutting device of the driving shaft, driven shaft and material shaft on the cold feed extruder, combined with the transmission system and safety protection, the uneven slitting, slow speed and safety hazards of the traditional slitting device are solved, and stable and efficient film slitting is achieved.
Patent Information
- Application Number
- CN202422328717.0
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-09-24
- Publication Date
- 2025-07-22
- Estimated Expiration
- 2034-09-24
AI Technical Summary
The slitting device of traditional cold feed extruders has problems such as uneven slitting width, slow speed, high labor intensity and many safety hazards.
The cutting device including the driving shaft, the driven shaft and the material shaft is adopted. The tool slicing film is driven through the transmission system of the driving gear, sprocket and chain, and is equipped with a safety shield and a proximity switch to ensure safety.
The film slitting width is stable, fast, and high production efficiency is achieved, which reduces the labor intensity of employees, eliminates the risk of cutting hands and equipment adhesive risks, and improves production safety.
Smart Images
Figure CN223130874U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of tire machinery, and particularly relates to a film slitting device for a cold feed extruder. Background Art
[0002] Cold feed rubber extruders are widely used in China's rubber industry and are commonly used in the production of radial tires, such as tread extrusion, composite tread extrusion, corner rubber and other various types of rubber. Cold feed extruders have various specifications, such as φ15, φ45, φ65, φ75, φ90, φ120, φ150, etc. Different specifications of cold feed extruders require feeding rubber films of different widths. The traditional slitting is carried out manually with a craft knife, resulting in uneven slitting width, slow slitting speed, and the phenomenon that the craft knife is prone to cut hands during slitting. This manual slitting method affects production efficiency and increases the labor intensity of employees, bringing inconvenience to production and production scheduling. Summary of the Utility Model
[0003] The purpose of the utility model is to overcome the above-mentioned defects or problems existing in the background art, and provide a film slitting device for a cold feed extruder.
[0004] To achieve the above purpose, the utility model adopts the following technical solutions:
[0005] A film slitting device for a cold feed extruder includes a cutter device. A loading roller is arranged in front of the cutter device. The cutter device includes a driving shaft, a driven shaft and a material carrying shaft. A number of cutters for slitting the film are detachably arranged on both the driving shaft and the driven shaft. The driving shaft is driven to rotate by a driving device. A driving gear and a driving sprocket are respectively arranged at both ends of the driving shaft. A driven gear is arranged at one end of the driven shaft. The driving gear is connected to the driven gear. A driven sprocket is arranged at one end of the material carrying shaft. The driving sprocket is connected to the driven sprocket through a transmission chain.
[0006] In some embodiments of the utility model, two rubber blocking rollers are arranged between the loading roller and the cutter device. A spacing for the film to pass through is left between the two rubber blocking rollers, so that the film on the loading roller reaches the cutter device after passing through the spacing between the two rubber blocking rollers.
[0007] In some embodiments of the utility model, a front proximity switch and a rear proximity switch are respectively arranged on both sides of the cutter device.
[0008] In some embodiments of the utility model, a safety protection cover is provided on the top of the cutter device.
[0009] In some embodiments of the utility model, the front proximity switch is arranged at the lower front side of the safety protection cover, and the rear proximity switch is arranged at the lower rear side of the safety protection cover.
[0010] In some embodiments of the present utility model, a second sprocket is further arranged at any end of the driving shaft. The driving device includes a reduction motor, and a first sprocket is arranged on the output shaft of the reduction motor. The first sprocket is connected to the second sprocket through a driving chain.
[0011] In some embodiments of the present utility model, the driving device, the cutter device, and the feeding roller are installed on the slitting device bracket. The slitting device bracket is provided with a feeding table. The feeding roller and the cutter device are respectively arranged on both sides of the feeding table, and the driving device is installed on the lower side of the cutter device.
[0012] In some embodiments of the present utility model, a plurality of bolt holes are arranged along the axial length direction on both the driving shaft and the driven shaft. The distance between adjacent bolt holes is the same, and the cutter is installed in the corresponding bolt hole through a set screw.
[0013] In some embodiments of the present utility model, the cutter includes an installation ring. The installation ring is provided with installation holes corresponding to the set screws, and the installation ring extends outward to be provided with a cutting edge.
[0014] In some embodiments of the present utility model, the driven shaft is located above the driving shaft. The cutter includes an upper cutter and a lower cutter. The number of the upper cutters is the same as that of the lower cutters. The upper cutters are installed on the driven shaft, the lower cutters are installed on the driving shaft, and the lower cutting edges of the upper cutters are in contact with the upper cutting edges of the corresponding lower cutters.
[0015] As can be seen from the above description of the present utility model, compared with the prior art, the present utility model has the following beneficial effects:
[0016] 1. The width of the cut rubber of the slitting device is stable, so that the rubber output stability of the cold feed extruder is better. At the same time, the slitting speed is fast, the production efficiency is high, and the operation intensity of employees is reduced, eliminating the safety hazard of cutting hands when cutting the film manually in the traditional way.
[0017] 2. The cutters installed on the driving shaft and the driven shaft cooperate with each other to cut the film. The cut rubber material is actively taken out by the feeding shaft, significantly reducing the risk of rubber jamming in the equipment.
[0018] 3. The top of the cutter device is covered with a safety protection cover, and a front proximity switch and a rear proximity switch are respectively arranged on both sides of the cutter device, which helps to eliminate the safety hazards in production. BRIEF DESCRIPTION OF THE DRAWINGS
[0019] In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the following briefly introduces the drawings required for use in the description of the embodiments. Obviously, the following drawings are some embodiments of the present utility model. For those of ordinary skill in the art, other drawings can be obtained according to these drawings without creative efforts.
[0020] Figure 1 Structural schematic diagram of the present utility model;
[0021] Figure 2 Arrangement schematic diagram of the cutter device of the present utility model;
[0022] Main reference numeral description:
[0023] 1. Loading roller, 2. Driving shaft, 20. Driving gear, 21. Driving sprocket, 22. Second sprocket, 3. Driven shaft, 30. Driven gear, 4. Tape shaft, 40. Driven sprocket, 41. Transmission chain, 5. Rubber blocking roller, 6. Reducing motor, 60. First sprocket, 61. Driving chain, 70. Mounting ring, 71. Blade, 72. Upper knife, 73. Lower knife, 8. Safety protective cover, 80. Front proximity switch, 81. Rear proximity switch, 9. Slitting device bracket, 90. Feeding table, 91. First protective cover, 92. Second protective cover. Specific embodiments
[0024] The technical solutions in the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are the preferred embodiments of the present utility model and should not be regarded as excluding other embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present utility model.
[0025] In the claims, description and above-mentioned accompanying drawings of the present utility model, unless otherwise clearly defined, the use of terms such as "first", "second" or "third" is only for differentiating different objects and not for describing a specific order.
[0026] In the claims, description and above-mentioned accompanying drawings of the present utility model, unless otherwise clearly defined, for orientation terms, the use of terms such as "center", "horizontal", "longitudinal", "level", "vertical", "top", "bottom", "inner", "outer", "upper", "lower", "front", "rear", "left", "right", "clockwise", "counterclockwise", etc. to indicate the orientation or position relationship is based on the orientation and position relationship shown in the accompanying drawings, and is only for facilitating the description of the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation or be constructed and operated in a specific orientation, so it cannot be understood as limiting the specific protection scope of the present utility model.
[0027] In the claims, description and the above-mentioned drawings of the present utility model, unless otherwise clearly defined, when using the terms "fixed connection" or "fixedly connected", it should be understood in a broad sense, that is, any connection method without displacement relationship and relative rotation relationship between the two, that is, including non-removable fixed connection, removable fixed connection, being integrally connected, and being fixed by other devices or components.
[0028] In the claims, description and the above-mentioned drawings of the present utility model, when using the terms "comprising", "having" and their variants, the intention is "including but not limited to".
[0029] See Figure 1-2 :
[0030] A film slitting device for a cold feed extruder, comprising a cutter device. A loading roller 1 is arranged in front of the cutter device, and the film enters the cutter device for slitting after passing through the loading roller 1.
[0031] The cutter device includes a driving shaft 2, a driven shaft 3 and a material carrying shaft 4. A number of cutters for slitting the film are detachably arranged on both the driving shaft 2 and the driven shaft 3. The driving shaft 2 is driven to rotate by a driving device. Active gears 20 and active sprockets 21 are respectively arranged at both ends of the driving shaft 2. A driven gear 30 is arranged at one end of the driven shaft 3. The active gear 20 is connected to the driven gear 30. A driven sprocket 40 is arranged at one end of the material carrying shaft 4. The active sprocket 21 is connected to the driven sprocket 40 through a transmission chain 41, so that the driving shaft 2 drives the driven shaft 3 and the material carrying shaft 4 to rotate together. The cutters installed on the driving shaft 2 and the driven shaft 3 cooperate to slit the film together. The slit rubber material is taken out actively by the material carrying shaft 4, which helps to eliminate the risk of the equipment getting stuck with rubber.
[0032] As an implementation manner, the material carrying shaft 4 is driven to rotate by a material carrying motor. When the equipment is started, the leading end of the slit rubber material can be manually placed on the material carrying shaft 4, and then the material carrying shaft 4 takes out the rubber material; in some other implementation manners, the slit rubber material enters the material carrying shaft 4 through a guiding device, and the material carrying shaft 4 takes out the rubber material actively.
[0033] As an implementation manner, two rubber blocking rollers 5 are arranged between the loading roller 1 and the cutter device. A spacing for the film to pass through is left between the two rubber blocking rollers 5, so that the film of the loading roller 1 reaches the cutter device after passing through the spacing between the two rubber blocking rollers 5 and is slit under the action of the cutters installed on the driving shaft 2 and the driven shaft 3.
[0034] As an implementation manner, a second sprocket 22 is further arranged at any end of the driving shaft 2. The driving device includes a reduction motor 6. A first sprocket 60 is arranged on the output shaft of the reduction motor 6. The first sprocket 60 is connected to the second sprocket 22 through a driving chain 61, and the reduction motor 6 drives the driving shaft 2 to rotate through the driving chain 61.
[0035] It is understandable that the second sprocket wheel 22, the driving gear 20, the driving sprocket wheel 21 and the driving shaft 2 are coaxially arranged.
[0036] As an implementation manner, the second sprocket wheel 22 is arranged outside the driving gear 20.
[0037] As an implementation manner, the driving shaft 2 and the driven shaft 3 have the same length. A plurality of bolt holes are arranged along the axial length directions on both the driving shaft 2 and the driven shaft 3, and the distance between adjacent bolt holes is the same. The cutter is installed in the corresponding bolt hole through a set screw.
[0038] As an implementation manner, the cutter includes a mounting ring 70. The mounting ring 70 is provided with mounting holes corresponding to the set screws. The mounting ring 70 is installed in the corresponding bolt hole through the set screw, and the mounting ring 70 extends outwards to be provided with a cutting edge 71.
[0039] As an implementation manner, the driven shaft 3 is located above the driving shaft 2. The cutter includes an upper cutter 72 and a lower cutter 73. The upper cutter 72 and the lower cutter 73 have the same quantity. The upper cutter 72 is installed on the driven shaft 3, and the lower cutter 73 is installed on the driving shaft 2. The lower cutting edge 71 of the upper cutter 72 is in contact with the upper cutting edge 71 of the corresponding lower cutter 73. Specifically, the installation orientations of the upper cutter 72 and the lower cutter 73 are opposite, and the lower side surface of the cutting edge of the upper cutter 72 is in contact with the lower side surface of the cutting edge of the lower cutter 73.
[0040] As an implementation manner, the width of the cold rubber sheet transferred from the rubber mixing process to the preparatory process is 700 mm, and the width of the rubber sheet used for feeding rubber to the φ45 cold feed extruder is 80 mm - 90 mm. Therefore, the distance between the two rubber blocking rollers 5 is not less than 700 mm, and the distance between adjacent cutters is set to 80 mm - 90 mm.
[0041] As an implementation manner, a front proximity switch 80 and a rear proximity switch 81 are respectively arranged on both sides of the cutter device. They are used to detect the situations on both sides of the cutter device to ensure operation safety. As another implementation manner, a safety protection cover 8 is provided on the top of the cutter device. The front proximity switch 80 is arranged at the lower end of the front side of the safety protection cover 8, and the rear proximity switch 81 is arranged at the lower end of the rear side of the safety protection cover 8. It is understandable that front safety doors and rear safety doors are respectively arranged on the front and rear sides of the safety protection cover 8. The front proximity switch 80 and the rear proximity switch 81 are used to detect whether the safety doors and the rear safety doors are normally closed, which helps to eliminate potential safety hazards in production.
[0042] As an implementation manner, the driving device, the cutting tool device, and the loading roller 1 are installed on the slitting device bracket 9. The slitting device bracket 9 is provided with a material conveying table 90. The loading roller 1 and the cutting tool device are respectively arranged on both sides of the material conveying table 90. The rubber blocking roller 5 is arranged on the material conveying table 90, and the driving device is arranged on the lower side of the cutting tool device.
[0043] As an implementation manner, a first protective cover 91 is arranged outside the driving gear 20, the driven gear 30, the second sprocket 22, the first sprocket 60, and the driving chain 61, which helps to eliminate potential safety hazards in production.
[0044] As an implementation manner, a second protective cover 92 is arranged outside the driving sprocket 21, the transmission chain 41, and the driven sprocket 40, which helps to eliminate potential safety hazards in production.
[0045] The descriptions of the above specification and embodiments are used to explain the protection scope of the present invention, but do not constitute a limitation to the protection scope of the present invention. Through the inspiration of the present invention or the above embodiments, those of ordinary skill in the art, combining well-known common sense, ordinary technical knowledge in the art, and / or existing technologies, can obtain modifications, equivalent replacements, or other improvements to the embodiments of the present invention or some of its technical features through logical analysis, reasoning, or limited experiments, which should all be included within the protection scope of the present invention.
Claims
1. A film slitting device for a cold feed extruder, characterized in that: It includes a cutting knife device. A feeding roller (1) is arranged on the front side of the cutting knife device. The cutting knife device includes a driving shaft (2), a driven shaft (3) and a strip shaft (4). A number of cutting tools for cutting the film are detachably arranged on the driving shaft (2) and the driven shaft (3). The driving shaft (2) is driven to rotate by a driving device. Active gears (20) and active sprockets (21) are respectively arranged at both ends of the driving shaft (2). A driven gear (30) is arranged at one end of the driven shaft (3). The active gear (20) is connected to the driven gear (30). A driven sprocket (40) is arranged at one end of the strip shaft (4). The active sprocket (21) is connected to the driven sprocket (40) through a transmission chain (41).
2. The film slitting device for a cold feed extruder according to claim 1, characterized in that: Two rubber blocking rollers (5) are arranged between the feeding roller (1) and the cutting knife device. A spacing for the film to pass through is left between the two rubber blocking rollers (5).
3. A film slitting device for a cold feed extruder according to claim 1, characterized in that: A front proximity switch (80) and a rear proximity switch (81) are respectively arranged on both sides of the cutting knife device.
4. A film slitting device for a cold feed extruder according to claim 3, characterized in that: A safety protective cover (8) is arranged to cover the top of the cutting knife device.
5. The film slitting device for a cold feed extruder according to claim 4, characterized in that: The front proximity switch (80) is arranged at the lower end of the front side of the safety protective cover (8), and the rear proximity switch (81) is arranged at the lower end of the rear side of the safety protective cover (8).
6. The film slitting device for a cold feed extruder according to claim 1, wherein: A second sprocket (22) is also arranged at any one end of the driving shaft (2). The driving device includes a reduction motor (6). A first sprocket (60) is arranged on the output shaft of the reduction motor (6). The first sprocket (60) is connected to the second sprocket (22) through a driving chain (61).
7. A film slitting device for a cold feed extruder according to claim 1, characterized in that: The driving device, the cutting knife device and the feeding roller (1) are installed on a slitting device bracket (9). A feeding table (90) is arranged on the slitting device bracket (9). The feeding roller (1) and the cutting knife device are respectively arranged on both sides of the feeding table (90).
8. A film slitting device for a cold feed extruder according to any one of claims 1-7, characterized in that: A number of bolt holes are arranged along the axial length direction on both the driving shaft (2) and the driven shaft (3). The spacing between adjacent bolt holes is the same. The cutting tool is installed in the corresponding bolt hole through a set screw.
9. A film slitting device for a cold feed extruder according to claim 8, characterized in that: The cutting tool includes a mounting ring (70). Mounting holes are arranged on the mounting ring (70) corresponding to the set screws. A cutting edge (71) extends outward from the mounting ring (70).
10. A film slitting device for a cold feed extruder according to claim 9, characterized in that: The driven shaft (3) is located above the driving shaft (2). The cutting tool includes an upper knife (72) and a lower knife (73). The number of the upper knives (72) is the same as that of the lower knives (73). The upper knives (72) are installed on the driven shaft (3), and the lower knives (73) are installed on the driving shaft (2). The lower cutting edges of the upper knives (72) are in contact with the upper cutting edges of the corresponding lower knives (73).