A limiting device for feeding glass fiber tubes

Abstract

This utility model relates to the field of glass fiber tube production technology, and in particular to a limiting device for glass fiber tube unloading. It includes a connecting frame, a support frame mounted on the connecting frame, a support roller horizontally rotatably connected to the support frame, an upper limit frame slidably connected to the connecting frame vertically, an upper limit roller horizontally rotatably connected to the upper limit frame and positioned above the support roller, a first adjustment mechanism for adjusting the vertical position of the upper limit frame, two side limiting rollers spaced laterally in front of the support roller and perpendicular to it, and two sets of second adjustment mechanisms for adjusting the two side limiting rollers. The limiting device for glass fiber tube unloading of this utility model can limit the cut glass fiber tube in four directions (up, down, left, and right), effectively preventing the tube from rolling or sliding and ensuring it falls into the external unloading frame. Simultaneously, it can adapt to glass fiber tubes of different outer diameters within a certain range, expanding its applicability.

Description

Technical Field

[0001] This utility model relates to the field of glass fiber tube production technology, and in particular to a limiting device for feeding glass fiber tubes. Background Technology

[0002] Existing glass fiber tube production lines generally adopt the following continuous process: First, resin-impregnated glass fiber bundles are formed into tube blanks by winding or pultrusion. The tube blanks are then sent into a heating and curing zone, where the resin is fully cross-linked under high temperature to form a glass fiber tube with a set rigidity. After curing, the glass fiber tube moves forward at a constant speed under the action of a traction device. After being cut to a fixed length online, it leaves the production line through a feeding device and falls into a discharge frame. Subsequently, it enters subsequent processes such as trimming, appearance inspection, packaging, and warehousing.

[0003] During the aforementioned traction and cutting stages, after the fiberglass tube leaves the curing mold, it is typically gripped and continuously pulled out by at least two alternating tracked traction machines to ensure the tube is taut and moves in a straight line. When the set length is reached, the cutting mechanism starts, moving synchronously with the fiberglass tube to complete the cut; after cutting, the cutting mechanism quickly resets, waiting for the next cycle.

[0004] However, once the fiberglass tube is cut, the continuous constraint between it and the traction machine is released. The fiberglass tube can easily roll, slide, or deflect freely on the conveyor rollers or table under its own weight and inertia, causing the tube segment to fail to fall accurately into the unloading frame. This not only increases the frequency of manual intervention but may also damage the tube ends or cause production interruptions. Although fixed limit blocks can be used for constraint in existing technologies, these blocks are usually only designed for a single tube diameter, limiting their applicability. Utility Model Content

[0005] The technical problem to be solved by this utility model is to provide a limiting device for cutting glass fiber tubes, which can limit the cut glass fiber tubes in four directions (up, down, left, and right) and adapt to glass fiber tubes with different outer diameter specifications within a certain range.

[0006] To solve the above-mentioned technical problems, the present invention provides a limiting device for feeding glass fiber tubes, comprising a connecting frame, a support frame installed on the connecting frame, a support roller horizontally rotatably connected to the support frame, an upper limit frame slidably connected to the connecting frame, an upper limit roller horizontally rotatably connected to the upper limit frame and disposed above the support roller, a first adjustment mechanism for adjusting the upper and lower positions of the upper limit frame, two side limiting rollers spaced apart on the left and right in front of the support roller and perpendicular to the support roller, and two sets of second adjustment mechanisms for adjusting the two side limiting rollers.

[0007] As an improvement to the above solution, the outer side of the support roller is provided with an inwardly concave V-shaped groove.

[0008] As an improvement to the above solution, the support frame includes a base plate mounted on the connecting frame, a support seat rotatably connected to the support roller, multiple first guide rods disposed on the lower side of the support seat and slidably connected to the base plate, and multiple springs sleeved on the outer side of the first guide rods and with their upper and lower ends respectively abutting against the support seat and the base plate.

[0009] As an improvement to the above solution, the base plate is provided with a plurality of guide sleeves, one to one, for sliding connection of the first guide rod. The first guide rod is provided with a first screw extending below the guide sleeve and threadedly connected with a first nut for abutting against the lower side of the guide sleeve.

[0010] As an improvement to the above solution, the base plate is provided with a plurality of first elongated through holes extending to the left and right, and the support frame also includes a plurality of first bolts for passing through the plurality of first elongated through holes one by one and being threadedly connected to the connecting frame, with the head abutting against the upper side of the base plate.

[0011] As an improvement to the above solution, the first adjustment mechanism includes multiple second guide rods arranged above the upper limit frame and slidably connected to the connecting frame, a second screw arranged on the upper side of the upper limit frame, and a rotating wheel fixed to the upper end of the second screw. The lower end of the second screw is rotatably connected to the upper limit frame and the middle part is threadedly connected to the connecting frame.

[0012] As an improvement to the above solution, the connecting frame is provided with two second elongated through holes spaced apart from left to right. The second adjustment mechanism includes a vertical rod rotatably connected to the side limiting roller, a drive head fixed to the upper end of the vertical rod, a baffle fixed to the lower end of the vertical rod, a third screw fixed to the lower end of the baffle and passing through the second elongated through hole, and a slider threadedly connected to the third screw and slidably connected to the connecting frame from left to right.

[0013] As an improvement to the above solution, the slider is used to cooperate with the baffle to clamp the connecting frame from the upper and lower ends of the second elongated through hole.

[0014] As an improvement to the above solution, a third long through hole is provided below the connecting frame and the second long through hole, which is slidably connected to the slider. The third long through hole extends to the left and right and communicates with the second long through hole.

[0015] Implementing this utility model has the following beneficial effects:

[0016] The limiting device for glass fiber tube feeding of this utility model, through the cooperation of a connecting frame, a support frame, a support roller, an upper limit frame, an upper limit roller, a first adjustment mechanism, a side limiting roller, and a second adjustment mechanism, can limit the cut glass fiber tube in four directions (up, down, left, and right), effectively preventing the tube from rolling or sliding and ensuring that it falls into the external unloading frame. At the same time, with the help of the first and second adjustment mechanisms, it can adapt to glass fiber tubes of different outer diameters within a certain range, thus expanding its application range. Attached Figure Description

[0017] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0018] Figure 1 This is a schematic diagram of the structure of the limiting device for feeding glass fiber tubes in an embodiment of this utility model;

[0019] Figure 2 This is a layout view of the support roller, upper limit roller, and side limit roller in an embodiment of this utility model;

[0020] Figure 3 This is a schematic diagram illustrating the working principle of the support frame in this embodiment of the utility model;

[0021] Figure 4 This is a schematic diagram illustrating the working principle of the first adjustment mechanism in this embodiment of the present invention.

[0022] Figure 5 This is a schematic diagram illustrating the working principle of the second adjustment mechanism in this embodiment of the present invention.

[0023] In the picture:

[0024] 100. Connecting bracket; 110. Second elongated through hole; 120. Third elongated through hole;

[0025] 200, Support bracket; 210, Base plate; 211, Guide sleeve; 212, First elongated through hole; 220, Support seat; 230, First guide rod; 240, Spring; 250, First screw; 260, First nut; 270, First bolt;

[0026] 300, support roller; 310, V-groove;

[0027] 400, upper limit frame;

[0028] 500, upper limit roller;

[0029] 600, First adjusting mechanism; 610, Second guide rod; 620, Second screw; 630, Rotary wheel;

[0030] 700, Side limiting roller;

[0031] 800, Second adjustment mechanism; 810, Vertical rod; 820, Drive head; 830, Baffle; 840, Third screw; 850, Slider. Detailed Implementation

[0032] To make the objectives, technical solutions, and advantages of the embodiments of this application clearer, the technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. The components of this application implemented as described and shown in the accompanying drawings can generally be arranged and designed in various different configurations.

[0033] In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings and are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0034] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0035] like Figures 1 to 5As shown, a limiting device for feeding glass fiber tubes in an embodiment of this utility model includes a connecting frame 100, a support frame 200 mounted on the connecting frame 100, a support roller 300 horizontally rotatably connected to the support frame 200, an upper limit frame 400 slidably connected to the connecting frame 100, an upper limit roller 500 horizontally rotatably connected to the upper limit frame 400 and disposed above the support roller 300, a first adjustment mechanism 600 for adjusting the vertical position of the upper limit frame 400, two side limiting rollers 700 spaced apart on the left and right in front of the support roller 300 and perpendicular to the support roller 300, and two sets of second adjustment mechanisms 800 for adjusting the two side limiting rollers 700.

[0036] In practice, the connecting frame 100 is used to install the glass fiber tube feeding limiting device of this utility model as a whole onto the feeding side of the frame of the fixed-length cutting device or traction device for external glass fiber tube production, and is provided with a clearance opening to allow the glass fiber tube to pass through along its conveying direction; the rotation axis of the supporting roller 300 is arranged parallel to the horizontal plane and is used to support the output glass fiber tube; the upper limit roller 500 and the supporting roller 300 are arranged vertically spaced and parallel to each other and are used to limit the vertical position of the glass fiber tube; during the production process, the external traction device conveys the glass fiber tube from front to back, and according to the conveying direction of the glass fiber tube, the rotation axes of the two supporting rollers 300 are perpendicular to the horizontal plane and spaced left and right, so as to... The left and right positions of the glass fiber tube are restricted; the vertical and horizontal positions of the glass fiber tube are restricted by the support roller 300, the upper limit roller 500, and two side limit rollers 700 to prevent the glass fiber tube from rolling during unloading and to ensure that the glass fiber tube falls into the external unloading frame; the first adjustment mechanism 600 can be a servo telescopic rod or a single-axis translation table, etc., to adjust the vertical position of the upper limit frame 400, and the second adjustment mechanism 800 can also be a servo telescopic rod, translation table, etc., to adjust the left and right positions of the side limit rollers 700 to adjust the width between the two side limit rollers 700. Through the cooperation of the two, the height and width of the glass fiber tube can be adjusted within a certain range to accommodate glass fiber tubes with different outer diameters.

[0037] The limiting device for glass fiber tube feeding of this utility model, through the cooperation of a connecting frame 100, a support frame 200, a support roller 300, an upper limit frame 400, an upper limit roller 500, a first adjustment mechanism 600, a side limiting roller 700, and a second adjustment mechanism 800, can limit the cut glass fiber tube in four directions (up, down, left, and right), effectively preventing the tube from rolling or sliding and ensuring that it falls into the external unloading frame; at the same time, with the help of the first adjustment mechanism 600 and the second adjustment mechanism 800, it can adapt to glass fiber tubes with different outer diameter specifications within a certain range, thus expanding the scope of application.

[0038] Specifically, the outer side of the support roller 300 preferably has an inwardly concave V-shaped groove 310. In fact, the two inclined surfaces of the V-shaped groove 310 form two symmetrically distributed tangential contact lines with the outer circle of the glass fiber tube, so that the glass fiber tube automatically converges towards the center of the groove bottom under the action of gravity after leaving the external fixed-length cutting device, realizing self-centering positioning. This not only cancels the lateral displacement of the tube body during the conveying process, but also completes the coarse positioning in the horizontal direction in advance, providing a reference for subsequent limiting.

[0039] Specifically, the support frame 200 preferably includes a base plate 210 mounted on the connecting frame 100, a support seat 220 rotatably connected to the support roller 300, multiple first guide rods 230 disposed on the lower side of the support seat 220 and slidably connected to the base plate 210, and multiple springs 240 sleeved on the outside of the first guide rods 230 and with their upper and lower ends respectively abutting against the support seat 220 and the base plate 210. In practical applications, with the cooperation of the upper limit roller 500 and the support roller 300, when the glass fiber tube passes through the upper limit roller 500 and the support roller 300, the spring 240 is compressed to a certain extent under the action of the support seat 220, the first guide rod 230, and the base plate 210. When the height of the glass fiber tube fluctuates, the glass fiber tube applies additional downward pressure to the support seat 220 through the support roller 300, causing the support seat 220 to move downward along the first guide rod 230 and compress the spring 240. Conversely, when the tube diameter decreases or the traction height increases, the spring 240 rebounds and pushes the support seat 220 back upward. Thus, the real-time height of the support roller 300 can automatically float within a certain range, improving the smoothness of glass fiber tube feeding.

[0040] Furthermore, the base plate 210 preferably has a plurality of guide sleeves 311, one-to-one, for sliding connection with the first guide rod 230. The first guide rod 230 has a first screw 250 extending below the guide sleeve 311 and threadedly connected to a first nut 260 for abutting against the lower side of the guide sleeve 311. During operation, screwing in the first nut 260 pushes the guide sleeve 311 upward, further compressing the spring 240 and increasing the overall stiffness. The support seat 220 requires greater downward pressure to produce the same displacement. Unscrewing the first nut 260 reduces the pre-compression of the spring 240, lowering its stiffness. The support seat 220 can produce a larger displacement under less pressure, adapting to a wider range of height changes. By adjusting the pre-compression, the clamping force between the support roller 300 and the upper limit roller 500 is always kept within an optimal range, preventing tube jumping and avoiding excessive compression that could damage the tube wall.

[0041] Furthermore, the base plate 210 preferably has a plurality of first elongated through holes 212 extending laterally. The support frame 200 also includes a plurality of first bolts 270 for correspondingly passing through the plurality of first elongated through holes 212 and being threadedly connected to the connecting frame 100, with their heads abutting against the upper side of the base plate 210. In fact, the head of the first bolt 270 is larger than the width of the first elongated through hole 212, and the stud portion of the first bolt 270 is smaller than the width of the first elongated through hole 212. During assembly, the first bolt 270 is passed through the corresponding first elongated through hole 212 from bottom to top and screwed into the threaded hole of the connecting frame 100. The head of the first bolt 270 presses against the upper surface of the base plate 210, thereby fixing the support frame 200 as a whole onto the connecting frame 100. After loosening the first bolt 270, the base plate 210 can be moved laterally along the elongated through holes, realizing the left and right adjustment of the support frame 200 relative to the connecting frame 100. When the process adjustment of the glass fiber tube production line requires fine-tuning of the horizontal center line of the support roller 300, simply loosen the first bolt 270, slide the base plate 210 along the first elongated through hole 212 to the new position, and then tighten it again. The same set of equipment can be matched with different cutting centers or traction centers within a certain range, thus expanding its application scope.

[0042] It should be noted that the first adjustment mechanism 600 preferably includes multiple second guide rods 610 disposed above the upper limit frame 400 and slidably connected to the connecting frame 100, a second screw 620 disposed on the upper side of the upper limit frame 400, and a rotating wheel 630 fixed to the upper end of the second screw 620. The lower end of the second screw 620 is rotatably connected to the upper limit frame 400, and the middle part is threadedly connected to the connecting frame 100. In practical applications, the operator rotates the rotating wheel 630, causing the second screw 620 to helically feed within the threaded hole of the connecting frame 100. The second screw 620 drives the upper limit frame 400 to rise and fall axially along the second guide rods 610, thereby changing the height between the upper limit roller 500 and the support roller 300. At the same time, due to the constraint of the second guide rods 610, the upper limit frame 400 only performs pure linear motion, ensuring that the upper limit roller 500 always remains parallel to the support roller 300. In fact, the threaded connection of the second screw 620 connecting bracket 100 has a self-locking characteristic, which can match fiberglass tubes of different heights.

[0043] It should be noted that the connecting frame 100 preferably has two second elongated through holes 110 spaced apart from each other. The second adjusting mechanism 800 includes a vertical rod 810 rotatably connected to the side limiting roller 700, a drive head 820 fixed to the upper end of the vertical rod 810, a baffle 830 fixed to the lower end of the vertical rod 810, a third screw 840 fixed to the lower end of the baffle 830 and passing through the second elongated through holes 110, and a slider 850 threadedly connected to the third screw 840 and slidably connected to the connecting frame 100 from left to right. In fact, the width of the baffle 830 is greater than the width of the second elongated through holes 110, and the outer diameter of the third screw 840 is smaller than the width of the second elongated through holes 110. In practical applications, the operator uses a tool to drive the drive head 820 to rotate, thereby driving the third screw 840 to rotate. The slider 850 cannot rotate relative to the connecting frame 100 under the restriction of the slider and the connecting frame 100. With the help of the baffle 830, the connecting frame 100 is clamped or released, so as to fix or adjust the left and right position of the side limiting roller 700.

[0044] Specifically, the slider 850 is preferably used to cooperate with the baffle 830 to clamp the connecting frame 100 from both the upper and lower ends of the second elongated through hole 110. The baffle 830 and the slider 850 act on the surfaces of the connecting frame 100 at the upper and lower ends of the second elongated through hole 110, respectively, to form an upper and lower clamping, ensuring that the left and right positions of the rotation axis of the side limiting roller 700 are fixed relative to the connecting frame 100.

[0045] More specifically, the connecting bracket 100 preferably has a third elongated through hole 120 below the second elongated through hole 110, which is slidably connected to the slider 850. The third elongated through hole 120 extends laterally and communicates with the second elongated through hole 110. In practical applications, the width of the slider 850 matches the cross-sectional shape of the third elongated through hole 120. It has a threaded hole for threaded connection with the third screw 840. The width of the slider 850 is greater than the width of the second elongated through hole 110 and less than the width of the third elongated through hole 120, so that the slider 850 can only slide left and right along the third elongated through hole 120 and cannot rotate around the axis of the third screw 840. When the third screw 840 moves left and right within the second elongated through hole 110, the slider 850 moves synchronously under the guidance of the side wall of the third elongated through hole 120; the side wall of the third elongated through hole 120 limits the slider 850, preventing the slider 850 from rotating with the threaded rotation of the third screw 840. When clamped, the upper surface of the slider 850 and the lower surface of the baffle 830 respectively abut against the planes of the connecting brackets 100 at the upper and lower ends of the second elongated through hole 110, forming an upper and lower clamping. When released, the slider 850 is still constrained by the third elongated through hole 120, maintaining linear sliding. The sliding pair between the third elongated through hole 120 and the slider 850 restricts the rotational freedom of the slider 850, avoiding the interference of clamping and releasing due to the rotation of the slider 850 during adjustment.

[0046] The above are merely specific embodiments of this utility model and do not limit the patent scope of this utility model. Although embodiments of this utility model have been shown and described, those skilled in the art will understand that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principles and spirit of this utility model, the scope of which is defined by the claims and their equivalents. Those skilled in the art can make various other corresponding changes and modifications based on the technical solutions and concepts described above, and all such changes and modifications should fall within the protection scope of the claims of this utility model.

Claims

1. A limiting device for glass fiber pipe blanking, characterized in that: It includes a connecting frame, a support frame mounted on the connecting frame, a support roller that is horizontally rotatably connected to the support frame, an upper limit frame that is vertically slidably connected to the connecting frame, an upper limit roller that is horizontally rotatably connected to the upper limit frame and disposed above the support roller, a first adjustment mechanism for adjusting the vertical position of the upper limit frame, two side limit rollers that are spaced apart on the left and right in front of the support roller and perpendicular to the support roller, and two sets of second adjustment mechanisms for adjusting the two side limit rollers.

2. The limiting device for glass fiber pipe blanking according to claim 1, characterized in that: The outer side of the support roller is provided with an inwardly concave V-shaped groove.

3. The limiting device for glass fiber pipe blanking according to claim 1, characterized in that: The support frame includes a base plate mounted on a connecting frame, a support seat rotatably connected to the support roller, multiple first guide rods disposed on the lower side of the support seat and slidably connected to the base plate, and multiple springs sleeved on the outer side of the first guide rods with their upper and lower ends respectively abutting against the support seat and the base plate.

4. The limiting device for glass fiber tube blanking according to claim 3, characterized in that: The base plate is provided with a plurality of guide sleeves, one to one, for sliding connection of the first guide rod. The first guide rod is provided with a first screw extending below the guide sleeve and threadedly connected with a first nut for abutting against the lower side of the guide sleeve.

5. The limiting device for glass fiber tube blanking as claimed in claim 3, characterized in that: The base plate is provided with a plurality of first elongated through holes extending to the left and right. The support frame also includes a plurality of first bolts that pass through the plurality of first elongated through holes one by one and are threadedly connected to the connecting frame, with their heads abutting against the upper side of the base plate.

6. The limiting device for glass fiber pipe blanking according to claim 1, characterized in that: The first adjustment mechanism includes multiple second guide rods disposed above the upper limit frame and slidably connected to the connecting frame, a second screw disposed on the upper side of the upper limit frame, and a rotating wheel fixed to the upper end of the second screw. The lower end of the second screw is rotatably connected to the upper limit frame and the middle part is threadedly connected to the connecting frame.

7. The limiting device for glass fiber pipe blanking as claimed in claim 1, characterized in that: The connecting frame is provided with two second elongated through holes spaced apart from left to right. The second adjustment mechanism includes a vertical rod rotatably connected to the side limiting roller, a drive head fixed to the upper end of the vertical rod, a baffle fixed to the lower end of the vertical rod, a third screw fixed to the lower end of the baffle and passing through the second elongated through hole, and a slider threadedly connected to the third screw and slidably connected to the connecting frame from left to right.

8. The limiting device for glass fiber pipe blanking according to claim 7, characterized in that: The slider is used to cooperate with the baffle to clamp the connecting frame from the upper and lower ends of the second elongated through hole.

9. The limiting device for glass fiber pipe blanking according to claim 8, characterized in that: The connecting frame is provided with a third long through hole below the second long through hole, which is slidably connected to the slider. The third long through hole extends to the left and right and communicates with the second long through hole.

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