A special device for adding glass fiber to paper gypsum board

Abstract

This utility model relates to the field of gypsum board production technology, and in particular to a special fiberglass addition device for paper-faced gypsum board. It includes a sieve hopper for adding fiberglass material, with a stepped section inside the sieve hopper. Two feeding components are installed within the stepped section, and these components are used to add fiberglass material by tilting and oscillating. By setting two feeding components and a cam between them, when the cam is driven to rotate by a motor, the irregular contour of the cam applies a periodic and asymmetrical force to the feeding components on both sides, causing the two feeding components to tilt and oscillate within the stepped section, rather than undergoing traditional linear vibration. Due to the eccentric characteristics or specific contour design of the cam, the oscillation amplitude and frequency dynamically change, thereby breaking the static accumulation mode of the fiber material on the sieve and solving the problem of uneven addition of fiberglass material in existing addition devices, thus achieving uniform addition of fiberglass material.

Description

Technical Field

[0001] This utility model relates to the field of gypsum board production technology, and in particular to a special fiberglass addition device for paper-faced gypsum board. Background Technology

[0002] Chopped glass fiber, also known as chopped glass fiber precursor, is made by melting quartz sand at high temperatures, drawing precursor fibers using a special sizing agent (softener), and then wet-cutting them online, or by cutting finished glass fibers. Paper-faced gypsum board is a new type of building material that uses building gypsum powder as the main raw material and various fibers as reinforcing materials.

[0003] In existing technologies, the screening efficiency of vibrating screens and other mechanisms used for material feeding is highly dependent on the compatibility between the screen aperture and the chopped fiber length. However, in actual production, the size distribution of chopped fiber can fluctuate (e.g., wet chopped fiber processes are prone to fiber length deviations), causing some fibers to fail to pass through the screen effectively due to being too small or too long. Fibers that are too short may remain on the screen surface due to insufficient weight, forming localized accumulations; while fibers that are too long are prone to clogging the screen holes, disrupting the screen's ability to uniformly transmit material, resulting in intermittent material shortages or excessive spillage. Furthermore, the linear vibration mode of the vibrating screen has limitations in dynamically controlling fiber dispersion. Utility Model Content

[0004] The main purpose of this utility model is to provide a special fiberglass addition device for paper-faced gypsum board, which aims to solve the problem that existing addition devices cannot add fiberglass materials evenly.

[0005] To achieve the above objectives, this utility model provides a special fiberglass addition device for paper-faced gypsum board, including a sieve hopper for adding fiberglass material, the sieve hopper having a stepped section, and the stepped section having two feeding components, the feeding components being used to add and feed fiberglass material by tilting and swinging.

[0006] Optionally, the screen hopper is equipped with a feeding motor, the output end of the feeding motor is equipped with a cam, and the cam is positioned between the two feeding components.

[0007] Optionally, the feeding assembly includes a feeding net, and a plurality of elastic elements are evenly distributed around the outer periphery of the feeding net, the elastic elements respectively abutting against the upper and lower end faces of the step.

[0008] Optionally, the feeding assembly near the bottom of the sieve hopper is connected to a blower assembly for increasing the uniformity of the glass fiber material.

[0009] Optionally, the blower assembly includes: a sphere, a blower rod, and a plastic airbag, wherein the plastic airbag is placed inside the sphere, the blower rod is fixedly connected to the feeding assembly, and the blower rod moves through the sphere and is placed inside the plastic airbag.

[0010] Optionally, the blower rod is connected to a ball head at one end inside the sphere.

[0011] Optionally, the outer periphery of the sphere is provided with a plurality of air holes.

[0012] Optionally, the output end of the feeding motor is provided with a gear, and a swing disk is rotatably arranged between the two feeding components. The outer periphery of the swing disk is provided with a toothed belt that meshes with the gear.

[0013] Optionally, the upper and lower end faces of the oscillating disk are provided with protrusions.

[0014] Optionally, the two protrusions are located at opposite ends of the diameter of the oscillating disk.

[0015] This invention features two feeding components with a cam positioned between them. When the motor drives the cam to rotate, its irregular profile exerts a periodic and asymmetrical force on the feeding components on both sides, causing them to tilt and oscillate within the steps, rather than vibrating linearly. Due to the eccentricity of the cam or its specific profile design, the oscillation amplitude and frequency change dynamically, thus breaking the static accumulation pattern of fiber material on the screen. This solves the problem of uneven addition of fiber material in existing technologies, achieving uniform addition of fiber material. Attached Figure Description

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

[0017] Figure 2 This is a cross-sectional structural diagram of the present invention;

[0018] Figure 3 This is a schematic diagram of the structure of the feeding assembly and the blower assembly of this utility model;

[0019] Figure 4 This is a schematic diagram of the cross-sectional structure of the blower assembly;

[0020] Figure 5 This is a schematic diagram of the structure of the oscillating disk in Example 2.

[0021] Figure label:

[0022] 1-Screen hopper, 2-Step, 3-Feeding assembly, 4-Feeding motor, 5-Blower assembly;

[0023] 31-Feeding mesh, 32-Elastic component;

[0024] 41-Cam, 42-Oscillating disc, 43-Toothed belt, 44-Protrusion;

[0025] 51-Sphere, 52-Blower rod, 53-Plastic airbag, 54-Ball head, 55-Blower hole.

[0026] The realization of the purpose, functional features and advantages of this utility model will be further explained in conjunction with the embodiments and with reference to the accompanying drawings. Detailed Implementation

[0027] 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.

[0028] It should be noted that all directional indicators (such as up, down, left, right, front, back, etc.) in this utility model embodiment are only used to explain the relative positional relationship and movement of each component in a certain specific posture (as shown in the figure). If the specific posture changes, the directional indicator will also change accordingly.

[0029] In this utility model, unless otherwise explicitly specified and limited, the terms "connection," "fixing," etc., should be interpreted broadly. For example, "fixing" can mean a fixed connection, a detachable connection, or an integral part; it can mean a mechanical connection or an electrical connection; it can mean a direct connection or an indirect connection through an intermediate medium; it can mean the internal communication of two components or the interaction between two components, unless otherwise explicitly limited. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0030] Furthermore, if the embodiments of this utility model involve descriptions such as "first" or "second," these descriptions are for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined with "first" or "second" may explicitly or implicitly include at least one of those features. Additionally, the meaning of "and / or" throughout the text includes three parallel solutions; for example, "A and / or B" includes solution A, solution B, or a solution where both A and B are satisfied simultaneously. Furthermore, the technical solutions of the various embodiments can be combined with each other, but this must be based on the ability of those skilled in the art to implement them. When the combination of technical solutions is contradictory or impossible to implement, it should be considered that such a combination of technical solutions does not exist and is not within the scope of protection claimed by this utility model.

[0031] Example 1:

[0032] Please refer to the attached document as well. Figures 1 to 4 This embodiment provides a special fiberglass addition device for paper-faced gypsum board, including a sieve hopper 1 for adding fiberglass material. The sieve hopper 1 is provided with a stepped section 2, and the stepped section 2 is provided with two feeding components 3. The feeding components 3 are used to add and feed fiberglass material by tilting and swinging. It should be noted that the screening efficiency of existing vibrating screens is highly dependent on the compatibility between the screen aperture and the chopped length of fiberglass. However, in actual production, the size distribution of chopped fiberglass fluctuates to a certain extent (e.g., wet chopping process is prone to fiber length deviation), causing some fibers to be unable to pass through the screen effectively due to being too small or too long. Fibers that are too short may remain on the screen surface due to insufficient weight, forming local accumulation; fibers that are too long are prone to clogging the screen holes, destroying the screen surface's ability to uniformly transmit material, causing intermittent material interruption or excessive spillage. Furthermore, the linear vibration mode of the vibrating screen has limitations in the dynamic control of fiber dispersion.

[0033] Based on the above problems, the applicant proposed a special fiberglass addition device for paper-faced gypsum board. This device adds fiberglass material by installing tilting and swinging feeding components 3 inside the sieve hopper 1. It is understood that the feeding components 3 are movably positioned within the step 2. Since the sieve hopper 1 needs to be linked with subsequent gypsum board processing equipment, it inevitably experiences some vibration rather than remaining relatively stationary. Without introducing external power, the feeding components 3, movably positioned within the step 2, can also generate slight vibration displacement, thus adding fiberglass material through a vibrating screen feeding method. Due to the number of feeding components 3, the device can, to some extent, solve the problem of uneven fiberglass addition in existing technologies. Specifically, the multi-layered feeding components 3 increase the uniformity of fiberglass material feeding through repetitive vibration feeding.

[0034] In this embodiment, a feeding motor 4 is provided on the screen hopper 1, and a cam 41 is provided at the output end of the feeding motor 4, with the cam 41 positioned between the two feeding components 3. This structure, by introducing a cooperative structure between the feeding motor 4 and the cam 41, effectively solves the core problem of uneven fiberglass material addition in the prior art. Specifically, the screen hopper 1 is provided with a feeding motor 4, and a cam 41 is installed at its output end, with the cam 41 precisely positioned between the two feeding components 3. When the motor drives the cam 41 to rotate, the irregular contour of the cam 41 applies a periodic and asymmetrical force to the feeding components 3 on both sides, causing the two feeding components 3 to tilt and oscillate within the step 2, rather than undergoing traditional linear vibration. Due to the eccentric characteristics or specific contour design of the cam 41, the oscillation amplitude and frequency exhibit dynamic changes, thereby breaking the static accumulation mode of the fiber material on the screen. The irregular oscillation forces the fiberglass material to form a multi-directional movement trajectory on the screen surface, which not only avoids the problem of short fibers being stuck on the screen surface due to insufficient weight, but also prevents the problem of excessively long fibers blocking the screen holes, thus significantly improving screening efficiency and material feeding uniformity.

[0035] It should also be noted that the two feeding components 3 form a complementary vibration mode due to the difference in the force of the cam 41. Specifically, when one feeding component 3 is tilted significantly due to the high point contact of the cam 41, the other side is in a small swing state due to the low point contact. This alternating motion makes the glass fiber material more dispersed in the screen hopper 1, reducing the possibility of local accumulation.

[0036] In this embodiment, the feeding assembly 3 includes a feeding net 31, and several elastic elements 32 are evenly distributed around the outer periphery of the feeding net 31. The elastic elements 32 abut against the upper and lower end faces of the step 2. It should be noted that due to the eccentric characteristics or specific contour design of the cam 41, the oscillation amplitude and frequency exhibit dynamic changes. During the glass fiber feeding process, this dynamic oscillation allows the glass fiber material to be more fully dispersed and mixed in the sieve hopper 1. Due to the difference in the force of the cam 41, the two feeding assemblies 3 form complementary vibration modes. When one feeding assembly 3 is significantly tilted due to the high point contact of the cam 41, the other side is in a small oscillation state due to the low point contact. This alternating motion further promotes the uniform distribution of glass fiber material in the sieve hopper 1, reduces the possibility of local accumulation, and thus achieves uniform addition of glass fiber material, effectively solving the problem that the existing addition device cannot uniformly add glass fiber material.

[0037] In this embodiment, the feeding assembly 3 near the bottom of the screen hopper 1 is connected to a blower assembly 5 for increasing the uniformity of the glass fiber material. It should be noted that the introduction of the blower assembly 5, by generating a directional airflow at the bottom of the feeding assembly 3, applies additional dispersing force to the glass fiber material, so that in the final stage of feeding, any locally aggregated glass fiber material can be further dispersed, allowing it to enter the subsequent production process in a more uniform state.

[0038] In this embodiment, the blower assembly 5 includes: a ball 51, a blower rod 52, and a plastic airbag 53. The plastic airbag 53 is placed inside the ball 51. The blower rod 52 is fixedly connected to the feeding assembly 3, and the blower rod 52 moves through the ball 51 and is placed inside the plastic airbag 53.

[0039] It should also be noted that when the blower 52 moves up and down with the oscillation of the feeding assembly 3, the plastic airbag 53 is periodically compressed and expanded, thereby realizing the reciprocating ejection of airflow. This reciprocating blowing not only continuously disperses the glass fiber material, preventing new accumulation during the feeding process, but also automatically adjusts the blowing force and direction according to the oscillation frequency and amplitude of the feeding assembly 3, so that the glass fiber material is subjected to appropriate airflow at different positions and times, further enhancing the effect of uniform feeding.

[0040] In this embodiment, one end of the blower rod 52, located inside the sphere 51, is connected to a ball head 54. The outer periphery of the sphere 51 has several blower holes 55. It is understood that the design of the ball head 54 allows the blower rod 52 to more smoothly compress or expand the plastic airbag 53 during movement, thereby achieving more stable airflow control. The blower holes 55 are located on the outer periphery of the sphere 51, and the uniform distribution of multiple blower holes 55 ensures that airflow is ejected simultaneously in all directions, comprehensively blowing the fiberglass material and avoiding the problems of localized excessive dispersion or insufficient blowing that may occur with a single airflow direction.

[0041] Example 2:

[0042] This embodiment only describes the parts that differ from Embodiment 1. Specifically, as shown in the appendix... Figure 5 As shown, in this embodiment, the output end of the feeding motor 4 is provided with a gear, and a swing disk 42 is rotatably arranged between the two feeding components 3. A toothed belt 43 that meshes with the gear is provided on the outer periphery of the swing disk 42. The upper and lower end faces of the swing disk 42 are provided with protrusions 44. The two protrusions 44 are respectively located at both ends of the diameter of the swing disk 42.

[0043] It should be noted that the output end of the feeding motor 4 is equipped with a gear, and the oscillating disk 42, which is rotatably disposed between the two feeding components 3, meshes with the gear through the outer peripheral toothed belt 43. When the motor drives the gear to rotate, the toothed belt 43 drives the oscillating disk 42 to rotate synchronously, converting the unidirectional rotational motion of the motor into the circumferential motion of the oscillating disk 42. The above structure breaks through the linear drive mode of the traditional vibrating screen and provides a more complex dynamic control basis for the motion of the feeding component 3. The symmetrical distribution of the protrusions 44 causes the oscillating disk 42 to form periodically alternating thrust points when rotating. When the protrusions 44 contact the feeding component 3, they will apply an asymmetrical force, forcing the feeding component 3 to tilt and oscillate within the step 2. This oscillation is not a simple reciprocating vibration, but a composite motion combining rotation and deflection, which significantly expands the movement trajectory of the glass fiber material on the screen. For example, when the oscillating disk 42 rotates to the point where a certain protrusion 44 contacts the feeding component 3, the component on that side is lifted and tilted, while the other side naturally falls back as the protrusion 44 disengages, forming an alternating tilting action. The aforementioned dynamic changes break the static accumulation of fibers on the screen surface, forcing excessively short fibers to slide off more quickly due to changes in the tilt angle, while excessively long fibers are dislodged from the screen holes due to the oscillating impact, thus solving the problem of low screening efficiency caused by fiber size fluctuations in the existing technology.

[0044] It should also be noted that the gear-belt transmission system 43 ensures the accuracy and synchronization of power transmission, avoiding motion deviations caused by backlash or wear in traditional linkage mechanisms, making the oscillation frequency and amplitude easier to control. Secondly, the symmetrical design of the protrusions 44 not only enhances the regularity of the oscillation motion but also reduces mechanical vibration during equipment operation through balancing, extending the service life of the screen bucket 1 and the feeding assembly 3. Specifically, when one protrusion 44 pushes the feeding assembly 3 to tilt, the other protrusion 44 immediately enters the pushing position, forming a continuous alternating motion, avoiding single-point overload. Simultaneously, the intermittent contact (rather than continuous friction) between the protrusions 44 and the feeding assembly 3 reduces energy loss and improves the overall energy efficiency of the device. More importantly, the combined motion of the oscillating disc 42 and the elastic element 32 further optimizes the stability of the oscillation process; the elastic element 32 is compressed and stores energy under the push of the protrusions 44 and releases energy after the protrusions 44 disengage, forming a flexible reset mechanism that ensures the oscillation amplitude while avoiding damage to the screen from rigid collisions. In addition, the tilting oscillation driven by the oscillating disc 42 is also linked with the blower assembly 5: the oscillation of the feeding assembly 3 drives the blower rod 52 to reciprocate within the ball 51, and further disperses the fiber clumps through the compression of the plastic airbag 53 and the directional airflow of the blower hole 55.

[0045] The above are merely preferred embodiments of this utility model and do not limit the patent scope of this utility model. Any equivalent structural or procedural transformations made based on the description and drawings of this utility model, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of this utility model.

Claims

1. A paper gypsum board glass fiber dedicated adding device characterized by, It includes a sieve hopper for adding glass fiber material, the sieve hopper having a stepped section, and the stepped section having two feeding components, the feeding components being used to add and feed glass fiber material by tilting and swinging.

2. A paper-faced gypsum board glass fiber special additive device according to claim 1, characterized in that, The screen hopper is equipped with a feeding motor, and the output end of the feeding motor is equipped with a cam, which is positioned between the two feeding components.

3. A paper-faced gypsum board glass fiber special additive device according to claim 1, characterized in that, The feeding assembly includes a feeding net, and several elastic elements are evenly distributed around the outer periphery of the feeding net. The elastic elements abut against the upper and lower end faces of the step respectively.

4. A paper-faced gypsum board glass fiber special additive device according to claim 1, characterized in that, The feeding assembly near the bottom of the sieve hopper is connected to a blower assembly for increasing the uniformity of the glass fiber material.

5. A paper-faced gypsum board glass fiber special additive device according to claim 4, characterized in that, The blower assembly includes a sphere, a blower rod, and a plastic airbag. The plastic airbag is placed inside the sphere, and the blower rod is fixedly connected to the feeding assembly. The blower rod moves through the sphere and is placed inside the plastic airbag.

6. A paper-faced gypsum board glass fiber special additive device according to claim 5, characterized in that, The blower rod is attached to a ball head at one end inside the sphere.

7. The special fiberglass addition device for paper-faced gypsum board as described in claim 5, characterized in that, The sphere has several air vents on its outer periphery.

8. A paper-faced gypsum board glass fiber special additive device according to claim 2, characterized in that, The output end of the feeding motor is equipped with a gear, and a swing disk is rotatably arranged between the two feeding components. The outer periphery of the swing disk is provided with a toothed belt that meshes with the gear.

9. A paper-faced gypsum board glass fiber special additive device according to claim 8, characterized in that, The upper and lower end faces of the oscillating disk are provided with protrusions.

10. A paper-faced gypsum board glass fiber special additive device according to claim 9, characterized in that, The two protrusions are located at opposite ends of the diameter of the oscillating disk.

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