Filament guide device of glass fiber chopping machine

Abstract

The utility model discloses a filament guide device of a glass fiber chopping machine, which relates to the technical field of glass fiber chopping and comprises a support extending leftwards and rightwards, a filament guide rod fixed on the support and vertically extending upwards and a filament guide roller rotatably mounted on the support and extending leftwards and rightwards. The yarn guide rods are uniformly arranged in the left-right direction of the bracket; the mounting position of the yarn guide roller is higher than the bottom of the yarn guide rod. The device is arranged between a compression roller and an anvil roller, and the glass fiber wire harnesses are clamped between the adjacent wire guide rods respectively, so that the adjacent glass fiber wire harnesses are limited and blocked, and the situation that the glass fiber wire harnesses deflect before entering the compression roller and the anvil roller, dislocation is caused during extension and pressing is avoided, and the service life of the glass fiber wire harnesses is prolonged. Therefore, the lengths of the subsequently cut glass fiber filament sections are inconsistent; meanwhile, the glass fiber wire harness is supported at the top of the godet, and the glass fiber wire harness is guided through rotation of the godet, so that the friction force of the godet is reduced, and the glass fiber wire harness is prevented from being broken.

Description

Technical Field

[0001] The utility model relates to the technical field of glass fiber wire cutting, in particular to a wire guiding device for a glass fiber short cutter. Background Art

[0002] Before the production of glass fiber mats, the glass fiber wire bundles need to be cut into small segments and then dispersed. The cutting of the wire bundles is generally carried out by a glass fiber short cutter. The glass fiber short cutter includes a pressure roller, an anvil roller and a hob. Among them, the pressure roller and the anvil roller are pressed against each other, and the anvil roller and the hob cooperate to complete the cutting. The wire bundle is brought between the high-speed rotating pressure roller and the anvil roller for rolling, and the rolled wire bundle is conveyed between the anvil roller and the hob to complete the cutting.

[0003] However, during the use of the glass fiber short cutter, the following problems exist: when the wire bundle enters between the pressure roller and the anvil roller, it is deflected due to friction or other external force factors, resulting in misalignment of rolling, which causes the lengths of the subsequent cut glass fiber segments to be inconsistent, thus affecting the overall quality of the glass fiber mat. Summary of the Utility Model

[0004] The purpose of the utility model is to provide a wire guiding device for a glass fiber short cutter, which limits and guides the glass fiber wire bundle, thus avoiding misalignment during rolling and ensuring that the lengths of the subsequent cut glass fiber segments are consistent.

[0005] To achieve the above purpose, the utility model provides a wire guiding device for a glass fiber short cutter, which includes a bracket extending left and right, a wire guiding rod fixed on the bracket and extending vertically upward, and a wire guiding roller rotatably installed on the bracket and extending left and right; the wire guiding rods are evenly arranged along the left and right directions of the bracket; the installation position of the wire guiding roller is higher than the bottom of the wire guiding rod.

[0006] After adopting the above structure, by arranging this device between the pressure roller and the anvil roller, the glass fiber wire bundles are respectively clamped between adjacent wire guiding rods, thus realizing the limiting and blocking of adjacent glass fiber wire bundles, thereby avoiding the deflection of the glass fiber wire bundles before entering the pressure roller and the anvil roller, resulting in misalignment during rolling, and further resulting in inconsistent lengths of the subsequent cut glass fiber segments; at the same time, the glass fiber wire bundles are supported on the top of the wire guiding roller, and through the rotation of the wire guiding roller, the guiding of the glass fiber wire bundles is realized, thereby reducing its friction and avoiding breakage of the glass fiber wire bundles.

[0007] In order to stably fix the bracket, the bracket includes columns arranged opposite to each other left and right, and the two columns are fixedly connected by a mounting plate, and the wire guiding rods are evenly fixed on the mounting plate.

[0008] In order to prevent the top right angle of the wire guiding rod from snagging the wire or scratching the operator's arm during wire threading, an arc-shaped bend that curves towards one side is provided above the wire guiding rod.

[0009] In order to improve the wire guiding effect and enhance the strength of the wire guiding rod, the wire guiding rod includes two wire guiding rods arranged opposite to each other front and back, with their bottoms fixed to the bracket. The tops of the two wire guiding rods are connected by an arc-shaped bend, and the two wire guiding rods and the cross bar enclose a portal frame.

[0010] In order to guide the glass fiber wire harness at the front and rear ends of the wire guiding roller respectively, the wire guiding roller is rotatably installed between the two wire guiding rods.

[0011] In order to increase the functionality of the wire guiding roller, improve its tensioning ability, and prevent the glass fiber wire harness from becoming slack between the wire guiding roller and the pressure roller, resulting in skewing of the glass fiber wire harness before entering the pressure roller and the anvil roller, sliders are installed on the vertical column with upper and lower limit sliding. Return springs are respectively clamped between the top of the slider and the vertical column and between the bottom of the slider and the vertical column. The two ends of the wire guiding roller are respectively rotatably installed on the sliders on their corresponding sides.

[0012] In order to ensure the stability of the slider during sliding, a guiding column is also provided on the bracket, and the slider is slidably installed up and down on the guiding column.

[0013] In order to reduce the friction of the slider during sliding, a sliding sleeve is installed on the slider, and the sliding sleeve is slidably installed on the guiding column.

[0014] In order to facilitate the installation of the bracket, an installation flange is provided at the bottom of the bracket.

[0015] After adopting the above technical solutions, the beneficial effects of the present utility model are:

[0016] The wire guiding device of the glass fiber short cutter of the present utility model solves the technical problem that the glass fiber wire harness in the prior art skews when entering between the pressure roller and the anvil roller of the glass fiber short cutter, resulting in misalignment during rolling by the pressure roller and the anvil roller, and thus the lengths of the glass fiber filaments after subsequent cutting are inconsistent. The present utility model limits and guides the glass fiber wire harness, thereby avoiding misalignment during rolling and ensuring that the lengths of the glass fiber filaments after subsequent cutting are consistent. Description of the Drawings

[0017] Figure 1 is a schematic structural diagram of the wire guiding device of a glass fiber short cutter of the present utility model;

[0018] Figure 2 is Figure 1 the front view of

[0019] Figure 3 is Figure 2Cross-sectional view taken along A-A;

[0020] Figure 4 is Figure 3 Partial enlarged view of B in the figure.

[0021] In the figure, 1 is a bracket, 11 is a column, 111 is a slider, 112 is a return spring, 113 is a guide post, 12 is a mounting plate, 2 is a wire guiding screw rod, 21 is an arc-shaped bend, 22 is a wire guiding support rod, 3 is a wire guiding roller, and 4 is a glass fiber wire harness. Specific implementation manner

[0022] The following further elaborates on the present utility model in conjunction with the accompanying drawings.

[0023] All orientations mentioned in this specification are based on the orientation when the wire guiding device of a glass fiber chopping machine of the present utility model is working properly, without limiting its orientation during storage and transportation. It only represents the relative positional relationship and does not represent the absolute positional relationship.

[0024] Embodiment 1:

[0025] As Figure 1 and Figure 2 collectively shown, a wire guiding device of a glass fiber chopping machine includes a bracket 1 extending left and right, a wire guiding screw rod 2 fixed on the bracket 1 and extending vertically upward, and a wire guiding roller 3 rotatably installed on the bracket 1 and extending left and right. The wire guiding screw rods 2 are evenly arranged along the left and right direction of the bracket 1; the installation position of the wire guiding roller 3 is higher than the bottom of the wire guiding screw rod 2. A wire guiding channel is formed between adjacent wire guiding screw rods 2, and the glass fiber wire harness 4 is inserted into the wire guiding channel from the top of the wire guiding screw rod 2 and then supported on the top of the wire guiding roller 3; the glass fiber filaments can be sequentially inserted into the wire guiding channel. In practical applications, in order to reduce the workload of threading and improve the threading efficiency, the glass fiber wire harness 4 (formed by gathering multiple glass fiber filaments) is inserted into the wire guiding channel at intervals of a fixed distance.

[0026] During installation, the device is installed obliquely above the glass fiber chopping machine, and the height of the wire guiding roller 3 is higher than the heights of the pressure roller and the anvil roller of the glass fiber chopping machine. Thus, the wire guiding roller 3 can play a certain guiding role for the glass fiber wire harness 4 and at the same time reduce the friction between the glass fiber wire harness 4 and the wire guiding roller 3. The wire guiding screw rod 2 realizes the limit of the wire harness to prevent the glass fiber wire harness 4 from being skewed when entering between the pressure roller and the anvil roller, resulting in misalignment during rolling.

[0027] The bracket 1 includes columns 11 arranged opposite to each other left and right, and the two columns 11 are fixedly connected by a mounting plate 12. The two columns 11 and the mounting plate 12 form an H-shaped bracket; the wire guiding screw rods 2 are evenly fixed on the mounting plate 12. The bottom of the bracket 1 is provided with a mounting flange, which facilitates the installation of the bracket 1.

[0028] For the convenience of threading and to avoid wire hanging at the right-angle top of the guide wire rod 2, an arc-shaped bend 21 that bends towards one side is provided above the guide wire rod 2.

[0029] The guide wire rod 2 includes two wire guide rods 22 that are arranged opposite to each other front and back and whose bottoms are both fixed on the bracket 1. The tops of the two wire guide rods 22 are connected by the arc-shaped bend 21. By the two wire guide rods 22 arranged front and back, two-stage limiting is achieved, improving the limiting effect on the glass fiber wire harness 4. The wire guide roller 3 is rotatably installed between the two wire guide rods 22, achieving directional guiding and preventing the glass fiber wire harness 4 from skewing after passing through the position of the wire guide roller 3.

[0030] Embodiment Two:

[0031] If the glass fiber wire harness 4 becomes loose due to vibration or other reasons, there will still be a situation where the glass fiber wire harness 4 skews when entering between the pressure roller and the anvil roller. Therefore, this embodiment is further improved based on Embodiment One.

[0032] As Figure 3 and Figure 4 As commonly shown, a slideway is vertically opened on the column 11. A slider 111 is installed in the slideway with limited sliding. A return spring 112 is respectively clamped between the top of the slider 111 and the column 11 and between the bottom of the slider 111 and the column 11. The two ends of the wire guide roller 3 are respectively rotatably installed on the sliders 111 on their corresponding sides.

[0033] Under the traction of the pressure roller and the anvil roller, the glass fiber wire harness 4 is pressed against the upper surface of the wire guide roller 3. As the glass fiber wire harness 4 advances, the wire guide roller 3 rotates, thus realizing the guiding of the glass fiber wire harness 4; when the glass fiber wire harness 4 becomes loose due to vibration or slipping, the pressure of the glass fiber wire harness 4 on the wire guide roller 3 decreases. Under the action of the return spring 112 between the bottom of the slider 111 and the column 11, the slider 111 moves upward, thus re-tightening the glass fiber wire harness 4, ensuring the tightening force, and preventing the glass fiber wire harness 4 from skewing when entering between the pressure roller and the anvil roller.

[0034] To ensure the sliding stability of the slider 111, a guide post 113 is vertically installed in the slideway. The slider 111 is slidably installed up and down on the guide post 113; the return springs 112 on both the upper and lower sides of the slider 111 are sleeved on the guide post 113.

[0035] Furthermore, to ensure smoother sliding of the slider 111, a sliding sleeve is installed on the slider 111, and the sliding sleeve is slidably installed on the guide post.

[0036] The wire guiding device of a glass fiber short-cutting machine of the utility model solves the technical problem that when the existing glass fiber wire harness enters between the pressure roller and the anvil roller of the glass fiber short-cutting machine, it is deflected, resulting in misalignment during the rolling by the pressure roller and the anvil roller, and thus the lengths of the glass fiber filaments after subsequent cutting are inconsistent. The utility model limits and guides the glass fiber wire harness, thereby avoiding misalignment during rolling and ensuring that the lengths of the glass fiber filaments after subsequent cutting are consistent.

[0037] Certainly, the above description is not a limitation of the utility model, and the utility model is not limited to the above examples. Changes, modifications, additions or substitutions made by those skilled in the art within the essence of the utility model should also fall within the protection scope of the utility model.

Claims

1. A wire guide device for a glass fiber chopper, characterized in that: It comprises a bracket extending left and right, a wire guide rod fixed on the bracket and extending vertically upward, and a wire guide roller rotatably mounted on the bracket and extending left and right; The wire guide rods are evenly arranged along the left and right directions of the bracket; and the installation position of the wire guide roller is higher than the bottom of the wire guide rods.

2. The wire guide device of the glass fiber chopper according to claim 1, characterized in that: The bracket comprises left and right columns which are arranged opposite to each other, the two columns are fixedly connected by a mounting plate, and the wire guide rod is evenly fixed on the mounting plate.

3. The wire guide device of a glass fiber chopper according to claim 1, characterized in that: An arc-shaped bend bent toward one side is arranged above the wire guide rod.

4. The wire guide device of the glass fiber chopper according to claim 3, characterized in that: The wire guide rod comprises two wire guide support rods which are arranged front and back oppositely and whose bottoms are fixed on the bracket. The tops of the two wire guide support rods are connected by the arc bend, and the two wire guide support rods and the arc bend form a portal frame.

5. The wire guide device of the glass fiber chopper according to claim 4, characterized in that: The wire guide roller is rotatably installed between the two wire guide support rods.

6. The wire guide device of a glass fiber chopper according to claim 2, characterized in that: A slider is slidably mounted on the column in upper and lower limit positions, and a reset spring is clamped between the top of the slider and the column and between the bottom of the slider and the column. Both ends of the wire guide roller are rotatably mounted on the slider on the corresponding side.

7. A wire guide device for a glass fiber chopper according to claim 6, characterized in that: The bracket is also provided with a guide column, and the sliding block is mounted on the guide column for sliding up and down.

8. The wire guide device of the glass fiber chopper according to claim 7, characterized in that: A sliding sleeve is installed on the sliding block, and the sliding sleeve is slidably installed on the guide column.

9. The wire guide device of a glass fiber chopper according to claim 1, characterized in that: A mounting flange is arranged at the bottom of the bracket.

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