A device for drawing the selvedge of a canvas in a canvas impregnation machine

Abstract

This utility model discloses a fabric edge stretching device for a tire cord impregnation machine, including a base and stretching mechanisms. The base has a U-shaped structure, and a screw is rotatably connected to the inner side of the base. A motor is installed at the end of the base, and the power output end of the motor is connected to the screw. Two stretching mechanisms are symmetrically arranged on the top of the base. Each stretching mechanism includes an adjusting plate, an adjusting block, and a telescopic cylinder. The surface of the adjusting plate has screw holes, which are threaded to the screw. The telescopic cylinder is installed on the back of the adjusting plate, and its telescopic end passes through the adjusting plate and is fixedly connected to the adjusting block. This utility model's stretching device has two stretching mechanisms, which can clamp and pull the tire cord on both sides, keeping it in a tensile state during impregnation. The stretching force can be adjusted by driving the positions of the two stretching mechanisms, and it is also convenient for processing tire cords of different sizes, improving the applicability of the device.

Description

Technical Field

[0001] This utility model relates to the field of curtain fabric processing technology, specifically to a fabric edge stretching device for a curtain fabric impregnation machine. Background Technology

[0002] The edge tensioning device for tire cord fabric impregnation machines is a specialized piece of equipment used to control the edge tension and shape of tire cord fabric during the impregnation process. It is primarily used in production lines for impregnating tire cord fabric, industrial fabrics, and other similar products. Its core function is to ensure that the edges of the tire cord fabric maintain a flat and uniform tension during impregnation through precise mechanical or automated control, preventing problems such as deformation, wrinkling, or uneven impregnation, thereby improving product quality and production efficiency.

[0003] Existing methods for impregnating tire cord fabric make it difficult to adjust the tension. Insufficient edge tension leads to loose selvage, causing adhesive buildup, while excessive tension can cause fiber breakage or overstretching, resulting in uneven width of the impregnated fabric. Therefore, a selvage stretching device for tire cord impregnation machines is proposed. Utility Model Content

[0004] (a) Technical problems to be solved

[0005] To address the shortcomings of existing technologies, this utility model provides a fabric edge stretching device for a tire cord impregnation machine, which solves the problems of: inconvenience in tensioning and adjusting existing tire cords during impregnation, insufficient edge tension, loose fabric edges leading to glue accumulation, and excessive tension potentially causing fiber breakage or overstretching, resulting in uneven width of the impregnated tire cord.

[0006] (II) Technical Solution

[0007] To achieve the above objectives, this utility model provides the following technical solution: a fabric edge stretching device for a curtain fabric impregnation machine, comprising a base and a stretching mechanism. The base has a U-shaped structure and a screw is rotatably connected to the inner side of the base. A motor is installed at the end of the base, and the power output end of the motor is connected to the screw. Two stretching mechanisms are provided and symmetrically arranged on the top of the base. Each stretching mechanism includes an adjusting plate, an adjusting block, and a telescopic cylinder. The surface of the adjusting plate has a screw hole and is threadedly connected to the screw. The telescopic cylinder is installed on the back of the adjusting plate, and the telescopic end of the telescopic cylinder passes through the adjusting plate and is fixedly connected to the adjusting block.

[0008] As a further preferred embodiment of the present invention, the upper end of the side wall of the adjusting plate is symmetrically and vertically connected to a top plate, and a support plate is symmetrically installed in the middle of the side wall of the adjusting plate. Positioning grooves are provided on the side walls of the top plate and the support plate. Positioning rods are respectively provided on both sides of the adjusting block, and the ends of the positioning rods extend into the positioning grooves.

[0009] As a further preferred embodiment of the present invention, an adjustment groove is provided on the side wall of the adjustment block, and two connecting rods are slidably installed inside the adjustment groove. One end of the connecting rod is connected to a clamping plate, and the other end of the connecting rod extends into the interior of the adjustment block.

[0010] As a further preferred embodiment of this utility model, both the clamping plate and the support plate have mounting holes on their surfaces, and a stretching roller is rotatably connected inside the mounting holes. The surface of the stretching roller is provided with several rubber rings.

[0011] As a further preferred embodiment of this utility model, a second motor is installed on the top of the adjusting block, the power output end of the second motor extends into the interior of the adjusting block and is connected to a second screw, and two threaded sleeves are threadedly connected to the second screw, the sidewall of the threaded sleeves being fixedly connected to the end of the connecting rod.

[0012] As a further preferred embodiment of this utility model, the surfaces of screw one and screw two are symmetrically provided with threaded structures from the middle.

[0013] (III) Beneficial Effects

[0014] This utility model provides a fabric edge stretching device for a curtain fabric impregnation machine. It has the following beneficial effects:

[0015] This utility model includes a tensioning device with two tensioning mechanisms installed. These mechanisms can clamp and pull the curtain fabric on both sides, keeping it in a tensile state throughout the impregnation process. The tension can be adjusted by driving the positions of the two tensioning mechanisms, and the device is also suitable for processing curtain fabrics of different sizes, thus improving its applicability. Attached Figure Description

[0016] Figure 1 This is a structural diagram of the selvage stretching device for the curtain fabric impregnation machine described in this utility model;

[0017] Figure 2 This is a structural diagram of the drawing mechanism described in this utility model;

[0018] Figure 3 This is a diagram showing the internal structure of the adjusting block described in this utility model.

[0019] In the diagram: 1. Base; 2. Drafting mechanism; 3. Screw 1; 4. Motor 1; 5. Adjusting plate; 6. Telescopic cylinder; 7. Top plate; 8. Adjusting block; 9. Motor 2; 10. Clamping plate; 11. Positioning groove; 12. Support plate; 13. Mounting hole; 14. Drafting roller; 15. Positioning rod; 16. Screw sleeve; 17. Screw 2; 18. Connecting rod; 19. Adjusting groove. Detailed Implementation

[0020] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0021] Please see Figure 1-3 This utility model provides a technical solution: a fabric edge stretching device for a curtain fabric impregnation machine, including a base 1 and a stretching mechanism 2. The base 1 has a U-shaped structure and a screw 3 is rotatably connected to the inner side of the base 1. A motor 4 is installed at the end of the base 1, and the power output end of the motor 4 is connected to the screw 3. Two stretching mechanisms 2 are provided and symmetrically arranged on the top of the base 1. The stretching mechanism 2 includes an adjusting plate 5, an adjusting block 8, and a telescopic cylinder 6. The surface of the adjusting plate 5 is provided with a screw hole and is threadedly connected to the screw 3 through the screw hole. The telescopic cylinder 6 is installed on the back of the adjusting plate 5, and the telescopic end of the telescopic cylinder 6 passes through the adjusting plate 5 and is fixedly connected to the adjusting block 8. The stretching mechanism 2 can clamp the two sides of the curtain fabric. After clamping, starting the motor 4 can drive the two stretching mechanisms 2 to move simultaneously to the center or both sides. During the movement, the curtain fabric is tightened. Moving wheels are provided on both sides of the bottom of the adjusting plate 5 to improve the stability of the movement.

[0022] Further improvements include a top plate 7 symmetrically and vertically connected to the upper side wall of the adjusting plate 5, and a support plate 12 symmetrically installed in the middle of the side wall of the adjusting plate 5. Positioning grooves 11 are formed on the side walls of the top plate 7 and the support plate 12. Positioning rods 15 are respectively provided on both sides of the adjusting block 8, with the ends of the positioning rods 15 extending into the positioning grooves 11. An adjusting groove 19 is formed on the side wall of the adjusting block 8, and two connecting rods 18 are slidably installed inside the adjusting groove 19. One end of the connecting rod 18 is connected to a clamping plate 10, and the other end of the connecting rod 18 extends into the interior of the adjusting block 8. After the telescopic cylinder 6 extends, it drives the adjusting block 8 to move. The positioning rods 15 improve the stability of movement, and the clamping plate 10 clamps the curtain fabric.

[0023] Further improvements include mounting holes 13 on the surfaces of both the clamping plate 10 and the support plate 12. A stretching roller 14 is rotatably connected inside the mounting hole 13. The stretching roller 14 can guide and stretch the object. Several rubber rings are provided on the surface of the stretching roller 14 to improve its anti-slip performance.

[0024] Further improved, a second motor 9 is mounted on the top of the adjusting block 8. The power output end of the second motor 9 extends into the interior of the adjusting block 8 and is connected to a second screw 17. Two threaded sleeves 16 are threaded onto the second screw 17. The sidewalls of the threaded sleeves 16 are fixedly connected to the end of the connecting rod 18. After the second motor 9 is started, it drives the second screw 17 to rotate. After the second screw 17 rotates, it drives the two clamping plates 10 to move simultaneously to the center or both sides through the threaded sleeves 16. The surfaces of the first screw 3 and the second screw 17 are symmetrically arranged with threaded structures from the center.

[0025] Working principle: After starting motor 4, it drives screw 3 to rotate. Screw 3 drives adjusting plate 5 to move, pushing out telescopic cylinder 6 and placing two clamping plates 10 above and below the curtain fabric. After starting motor 9, it drives clamping plates 10 to clamp the curtain fabric. After clamping, telescopic cylinder 6 is retracted to tighten both sides of the curtain fabric. After tightening, clamping plates 10 move upward, so that the curtain fabric falls on support plate 12. After repeating several times, the curtain fabric is taut and guided by stretching roller 14. Alternatively, it can be clamped and tightened by clamping plates 10 and then guided. After guiding is completed, stretching mechanism 2 is reset.

[0026] The components of this utility model are: 1. base; 2. stretching mechanism; 3. screw one; 4. motor one; 5. adjusting plate; 6. telescopic cylinder; 7. top plate; 8. adjusting block; 9. motor two; 10. clamping plate; 11. positioning groove; 12. support plate; 13. mounting hole; 14. stretching roller; 15. positioning rod; 16. screw sleeve; 17. screw two; 18. connecting rod; 19. adjusting groove. All components are general standard parts or parts known to those skilled in the art. Their structure and principles can be learned by those skilled in the art through technical manuals or conventional experimental methods. The problem solved by this utility model is the existing method of impregnating curtain fabric with resin. The process is not convenient for tensioning and adjusting the fabric. Insufficient edge tension and loose fabric edges can lead to glue accumulation, while excessive tension may cause fiber breakage or overstretching, resulting in uneven width of the curtain fabric after impregnation. This utility model addresses this issue by combining the aforementioned components. The tensioning device of this utility model is equipped with two tensioning mechanisms 2. The tensioning mechanisms 2 can clamp and pull the curtain fabric on both sides, keeping it in a tensioned state throughout the impregnation process. The tension can be adjusted by driving the position of the two tensioning mechanisms 2. It also facilitates the processing and use of curtain fabrics of different sizes, improving the applicability of the device.

[0027] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. It will be apparent to those skilled in the art that this utility model is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or basic characteristics of this utility model. Therefore, the embodiments should be considered exemplary and non-limiting in all respects. The scope of this utility model is defined by the appended claims rather than the foregoing description, and thus all variations falling within the meaning and scope of equivalents of the claims are intended to be included within this utility model. No reference numerals in the claims should be construed as limiting the scope of the claims.

[0028] 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 fabric edge stretching device for a curtain fabric impregnation machine, comprising a base (1) and a stretching mechanism (2), characterized in that: The base (1) has a U-shaped structure and a screw (3) is rotatably connected to the inner side of the base (1). A motor (4) is installed at the end of the base (1) and the power output end of the motor (4) is connected to the screw (3). There are two stretching mechanisms (2) and they are symmetrically arranged on the top of the base (1). The stretching mechanism (2) includes an adjusting plate (5), an adjusting block (8) and a telescopic cylinder (6). The surface of the adjusting plate (5) is provided with a screw hole and is threadedly connected to the screw (3) through the screw hole. The telescopic cylinder (6) is installed on the back of the adjusting plate (5) and the telescopic end of the telescopic cylinder (6) passes through the adjusting plate (5) and is fixedly connected to the adjusting block (8).

2. The selvage stretching device for a curtain fabric impregnation machine according to claim 1, characterized in that: The upper side wall of the adjusting plate (5) is symmetrically and vertically connected to the top plate (7), and the middle side wall of the adjusting plate (5) is symmetrically installed with the support plate (12). The side walls of the top plate (7) and the support plate (12) are provided with positioning grooves (11). The two sides of the adjusting block (8) are respectively provided with positioning rods (15), and the ends of the positioning rods (15) extend into the positioning grooves (11).

3. The selvage stretching device for a curtain fabric impregnation machine according to claim 1, characterized in that: An adjustment groove (19) is provided on the side wall of the adjustment block (8), and two connecting rods (18) are slidably installed inside the adjustment groove (19). One end of the connecting rod (18) is connected to a clamp (10), and the other end of the connecting rod (18) extends into the interior of the adjustment block (8).

4. The selvage stretching device for a curtain fabric impregnation machine according to claim 3, characterized in that: The surfaces of the clamping plate (10) and the support plate (12) are provided with mounting holes (13), and a stretching roller (14) is rotatably connected inside the mounting hole (13). The surface of the stretching roller (14) is provided with several rubber rings.

5. The selvage stretching device for a curtain fabric impregnation machine according to claim 1, characterized in that: The top of the adjusting block (8) is equipped with a second motor (9). The power output end of the second motor (9) extends into the interior of the adjusting block (8) and is connected to a second screw (17). Two screw sleeves (16) are threaded onto the second screw (17). The sidewall of the screw sleeve (16) is fixedly connected to the end of the connecting rod (18).

6. The selvage stretching device for a curtain fabric impregnation machine according to claim 1, characterized in that: The surfaces of screw one (3) and screw two (17) are symmetrically provided with threaded structures in the middle.

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