Cutting device for inner tube extrusion production

By fixing the inner tube with an electric telescopic rod and clamping plate structure, combined with the design of sensors and movable plates, the problem of unstable fixation during the inner tube cutting process is solved, and precise and efficient inner tube cutting is achieved.

CN224255446UActive Publication Date: 2026-05-19JIANGSU JIEXUANTE NEW MATERIALS TECHNOLOGY CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
JIANGSU JIEXUANTE NEW MATERIALS TECHNOLOGY CO LTD
Filing Date
2025-06-27
Publication Date
2026-05-19

AI Technical Summary

Technical Problem

Inner tubes are not easily fixed during the cutting process and are prone to displacement, which affects cutting accuracy and product quality.

Method used

The inner tube is fixed by an electric telescopic rod and clamping plate structure. The length is measured by a sensor and the clamping plate is activated to hold the inner tube. The moving plate and electric telescopic rod are combined to focus the cutting area, and the blade is used for precise cutting.

Benefits of technology

This achieves stable fixation and precise cutting of the inner tube during the cutting process, improving cutting efficiency and product quality.

✦ Generated by Eureka AI based on patent content.

Smart Images

  • Figure CN224255446U_ABST
    Figure CN224255446U_ABST
Patent Text Reader

Abstract

The utility model discloses a cutting device for inner tube extrusion production, which comprises a bottom plate, the side surface of the bottom plate is movably connected with a feeding conveyor belt, one side of the bottom plate far away from the feeding conveyor belt is movably connected with a discharging conveyor belt, and the two sides of one end of the feeding conveyor belt and the two sides of one end of the discharging conveyor belt close to the bottom plate are respectively provided with a connecting plate. First electric telescopic rods are arranged at the ends, away from the bottom plate, above the connecting plates, first clamping plates are arranged on the sides, close to the bottom plate, of the first electric telescopic rods located on the left sides of the feeding conveying belt and the discharging conveying belt, and second clamping plates are arranged on the sides, close to the bottom plate, of the first electric telescopic rods located on the right sides of the feeding conveying belt and the discharging conveying belt. A placement groove is formed in the upper surface of the bottom plate, a movable plate matched with the placement groove in size is movably connected to the upper end of the placement groove, a second electric telescopic rod is arranged below the movable plate, and first connecting columns are arranged at the two ends of the bottom plate; when the inner tube cutting device is used, an inner tube can be fixedly cut.
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Description

Technical Field

[0001] This utility model belongs to the technical field of inner tube production equipment, and in particular relates to a cutting device for inner tube extrusion production. Background Technology

[0002] Inner tubes, also known as tire inner tubes, are circular elastic tubes with valves used to maintain tire pressure. They are air-bearing containers for inflation and shock absorption, used as auxiliary air-bearing containers inside the tires of automobiles, motorcycles, bicycles, and rickshaws. Based on their main materials, they can be divided into natural rubber inner tubes and butyl rubber inner tubes.

[0003] Inner tubes need to be cut into appropriate lengths using a cutting device during the production process to facilitate subsequent processing. Traditional cutting devices often require manual fixing of the inner tube during the cutting process, lacking a fixing device. As a result, the inner tube is not stable during the cutting process and is prone to displacement, which can easily lead to defective products and affect its suitability for subsequent use. Utility Model Content

[0004] The purpose of this invention is to provide a cutting device for inner tube extrusion production in order to solve the problem of unstable fixation during the inner tube cutting process.

[0005] This utility model achieves the above-mentioned objectives through the following technical solution: It includes a base plate, a feeding conveyor belt movably connected to the side of the base plate, and a discharging conveyor belt movably connected to the side of the base plate away from the feeding conveyor belt. Connecting plates are provided on both sides of the feeding and discharging conveyors near the end of the base plate. A first electric telescopic rod is provided above the connecting plate at the end away from the base plate. A first clamping plate is provided on the side of the first electric telescopic rod on the left side of the feeding and discharging conveyors near the base plate. A second clamping plate is provided on the side of the first electric telescopic rod on the right side of the feeding and discharging conveyors near the base plate. A placement groove is provided on the upper surface of the base plate. A movable plate of matching size is movably connected to the upper end of the placement groove. A second electric telescopic rod is provided below the movable plate. First connecting posts are provided at both ends of the base plate. A second connecting post is provided above the two first connecting posts. A third electric telescopic rod is provided below the second connecting posts. A connecting block is provided below the third electric telescopic rod. A blade is provided below the connecting block.

[0006] Furthermore, each of the first clamping plates has two first fixing blocks of the same height symmetrically arranged on the side near the bottom plate, and each of the second clamping plates has a second fixing block of the same height in the middle position on the side near the bottom plate. Each of the first connecting columns has a sensor at the lower end on the side near the bottom plate, and several fixing legs are provided below the bottom plate, the feeding conveyor belt and the discharging conveyor belt.

[0007] Furthermore, the height of the second fixing block is the same as the height of the first fixing block, and the second fixing block is located between the two first fixing blocks.

[0008] Furthermore, the sensor is located at the middle position between the two ends of the connecting block, and the sensor is located above the base plate.

[0009] Furthermore, the first electric telescopic rods on both sides of the feeding conveyor belt and the discharging conveyor belt are symmetrically arranged.

[0010] Furthermore, the connecting plate is fixedly connected to the base plate, and the connecting plate is movably connected to the feeding conveyor belt and the discharging conveyor belt.

[0011] Furthermore, the second electric telescopic rod is fixed at the bottom center of the placement slot.

[0012] Furthermore, the length of the connecting block is the same as the length of the blade, and the length of the connecting block is less than the length of the base plate.

[0013] Beneficial effects: This utility model is reasonably designed and has the following beneficial effects:

[0014] 1. On both sides of the feeding conveyor belt and the discharging conveyor belt, the first electric telescopic rod is equipped. When the inner tube is transported to the position, the first electric telescopic rod is quickly activated and precisely pushes the first clamping plate and the second clamping plate to move towards each other. At the same time, the second fixing block cleverly and smoothly brings the inner tube into the space between the two first fixing blocks, and applies a stable clamping force from both ends of the inner tube to ensure that the inner tube will not be displaced during the entire cutting process, thus laying a solid foundation for subsequent precise and efficient cutting operations.

[0015] 2. The second electric telescopic rod slowly drives the movable plate to climb upward to a suitable height. During this process, the part of the inner tube that contacts the movable plate is pushed upward, and small protrusions are gradually formed. The originally scattered inner tube cutting parts are gathered together in one place, making the inner tube cut better. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the structure of this utility model;

[0017] Figure 2 This is a right view of the present invention;

[0018] Figure 3 This is a top view of the present invention;

[0019] Figure 4 This is an exploded view of the present invention.

[0020] In the diagram: 1-base plate, 2-feed conveyor belt, 3-discharge conveyor belt, 4-connecting plate, 5-first electric telescopic rod, 6-first clamping plate, 7-second clamping plate, 8-placement slot, 9-second electric telescopic rod, 10-movable plate, 11-first connecting column, 12-second connecting column, 13-third electric telescopic rod, 14-connecting block, 15-blade, 16-first fixing block, 17-second fixing block, 18-sensor, 19-fixed leg. Detailed Implementation

[0021] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0022] Combination Figures 1 to 4 The cutting device shown includes a base plate 1. A feeding conveyor belt 2 is movably connected to the side of the base plate 1. A discharging conveyor belt 3 is movably connected to the side of the base plate 1 away from the feeding conveyor belt 2. Connecting plates 4 are provided on both sides of the feeding conveyor belt 2 and the discharging conveyor belt 3 near the end of the base plate 1. A first electric telescopic rod 5 is provided on the upper part of the connecting plate 4 away from the end of the base plate 1. A first clamping plate 6 is provided on the side of the first electric telescopic rod 5 on the left side of the feeding conveyor belt 2 and the discharging conveyor belt 3 near the base plate 1. A first electric telescopic rod 6 is provided on the side of the first electric telescopic rod 5 on the right side of the feeding conveyor belt 2 and the discharging conveyor belt 3 near the base plate 1. A second clamping plate 7 is provided on one side near the bottom plate 1. A placement groove 8 is provided on the upper surface of the bottom plate 1. A movable plate 10 of the same size is movably connected to the upper end of the placement groove 8. A second electric telescopic rod 9 is provided below the movable plate 10. A first connecting post 11 is provided at both ends of the bottom plate 1. A second connecting post 12 is provided above the two first connecting posts 11. A third electric telescopic rod 13 is provided below the second connecting post 12. A connecting block 14 is provided below the third electric telescopic rod 13. A blade 15 is provided below the connecting block 14. The blade, electric telescopic rod and conveyor belt in this utility model are existing technologies and will not be described in detail.

[0023] Among them, the first clamping plate 6 is symmetrically provided with two first fixing blocks 16 of the same height on the side near the bottom plate 1, the second clamping plate 7 is provided with a second fixing block 17 of the same height in the middle position on the side near the bottom plate 1, the first connecting column 11 is provided with a sensor 18 at the lower end on the side near the bottom plate 1, and several fixing legs 19 are provided below the bottom plate 1, the feeding conveyor belt 2 and the discharging conveyor belt 3.

[0024] The height of the second fixing block 17 is the same as the height of the first fixing block 16, and the second fixing block 17 is located between the two first fixing blocks 16.

[0025] Sensor 18 is located at the middle position of both ends of connecting block 14, and sensor 18 is located above base plate 1; sensor 18 is existing technology and will not be described in detail, sensor 18 can be a photoelectric sensor.

[0026] The first electric telescopic rods 5 on both sides of the feeding conveyor belt 2 and the discharging conveyor belt 3 are symmetrically arranged.

[0027] The connecting plate 4 is fixedly connected to the base plate 1, and the connecting plate 4 is movably connected to the feeding conveyor belt 2 and the discharging conveyor belt 3.

[0028] The second electric telescopic rod 9 is fixed at the bottom center of the placement slot 8.

[0029] The length of the connecting block 14 is the same as the length of the blade 15, and the length of the connecting block 14 is less than the length of the base plate 1; in this utility model, the blade 15 and the movable plate 10 are the same length, and the movable plate 10 is made of metal.

[0030] Working Principle: In use, this invention first transports the inner tube forward via the feeding conveyor belt 2, passing the sensor 18 and then onto the discharge conveyor belt 3. After the sensor 18 measures the appropriate length, both conveyor belts stop moving. Then, the first electric telescopic rod 15 activates, moving the first and second clamping plates 7 towards the inner tube. This causes the second fixing block 17, carrying the inner tube, to enter between the two first fixing blocks 16, securing both ends of the inner tube for subsequent cutting. Next, the second electric telescopic rod 9 activates, moving the movable plate 10 upwards to a suitable height, creating a small protrusion at the inner tube cutting position. This allows the inner tube cutting area to be grouped together for easier cutting. Then, the third electric telescopic rod 13 activates, driving the blade 15 to cut the inner tube. After cutting, the two clamping plates and the movable plate return to their original positions. The conveyor belt is then activated, moving the cut inner tube forward, and the subsequent cutting is performed following the same steps. The control connection between the sensor and the electric telescopic rod in this invention is existing technology.

[0031] This invention is not limited to the details of the exemplary embodiments described above, and can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, all variations falling within the meaning and scope of equivalents of the claims are intended to be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

[0032] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A cutting device for inner tube extrusion production, characterized in that... The system includes a base plate (1), a feeding conveyor belt (2) movably connected to the side of the base plate (1), and a discharging conveyor belt (3) movably connected to the side of the base plate (1) away from the feeding conveyor belt (2). Connecting plates (4) are provided on both sides of the feeding conveyor belt (2) and the discharging conveyor belt (3) near the end of the base plate (1). A first electric telescopic rod (5) is provided above the connecting plate (4) at the end away from the base plate (1). A first clamping plate (6) is provided on the side of the first electric telescopic rod (5) located on the left side of the feeding conveyor belt (2) and the discharging conveyor belt (3) near the base plate (1). The first electric telescopic rod (5) on the right side is provided with a second clamping plate (7) near the bottom plate (1). The upper surface of the bottom plate (1) is provided with a placement groove (8). The upper end of the placement groove (8) is movably connected to a movable plate (10) of the same size. The second electric telescopic rod (9) is provided below the movable plate (10). The bottom plate (1) is provided with a first connecting post (11) at both ends. The two first connecting posts (11) are provided with a second connecting post (12). The second connecting post (12) is provided with a third electric telescopic rod (13) below the second connecting post (12). The third electric telescopic rod (13) is provided with a connecting block (14) below the third electric telescopic rod (13). The connecting block (14) is provided with a blade (15) below the blade.

2. The cutting device for inner tube extrusion production according to claim 1, characterized in that: The first clamping plate (6) is symmetrically provided with two first fixing blocks (16) of the same height on the side near the bottom plate (1). The second clamping plate (7) is provided with a second fixing block (17) of the same height at the middle position on the side near the bottom plate (1). The first connecting column (11) is provided with a sensor (18) at the lower end on the side near the bottom plate (1). The bottom plate (1), the feeding conveyor belt (2) and the discharging conveyor belt (3) are provided with several fixing legs (19).

3. The cutting device for inner tube extrusion production according to claim 2, characterized in that: The height of the second fixing block (17) is the same as the height of the first fixing block (16), and the second fixing block (17) is located between the two first fixing blocks (16).

4. The cutting device for inner tube extrusion production according to claim 2, characterized in that: The sensor (18) is located at the middle position between the two ends of the connecting block (14), and the sensor (18) is located above the base plate (1).

5. The cutting device for inner tube extrusion production according to claim 1, characterized in that: The first electric telescopic rods (5) on both sides of the feeding conveyor belt (2) and the discharging conveyor belt (3) are symmetrically arranged.

6. The cutting device for inner tube extrusion production according to claim 1, characterized in that: The connecting plate (4) is fixedly connected to the base plate (1), and the connecting plate (4) is movably connected to the feeding conveyor belt (2) and the discharging conveyor belt (3).

7. The cutting device for inner tube extrusion production according to claim 1, characterized in that: The second electric telescopic rod (9) is fixed at the bottom center of the placement slot (8).

8. The cutting device for inner tube extrusion production according to claim 1, characterized in that: The length of the connecting block (14) is the same as the length of the blade (15), and the length of the connecting block (14) is less than the length of the base plate (1).