Needled felt shrinking and shaping device
By using a PLC controller and a motor-driven reciprocating screw system, combined with a temperature guide plate and nozzle, the problem of uneven heat distribution in traditional needle-punched felt shrinkage and shaping devices is solved. This achieves uniform heating and extrusion of the needle-punched felt, improving the product's strength and dimensional stability, and enhancing product quality.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- HUBEI TIANYUN NOISE REDUCTION & ANTIVIBRATION NEW MATERIAL
- Filing Date
- 2025-05-09
- Publication Date
- 2026-05-08
AI Technical Summary
Traditional needle-punched felt shrinkage and shaping devices suffer from uneven heat distribution, leading to excessive shrinkage or insufficient heat in some areas, which affects product strength and dimensional stability. Furthermore, they have dead zones, resulting in inconsistent product quality.
A PLC controller is used to regulate the hot air blower and the reciprocating screw system driven by the motor. Combined with the temperature guide plate and nozzle, the heat is evenly distributed and the material is extruded and shaped by a pressure sensor.
It achieves uniform heating and extrusion of needle-punched felt, improves product strength and dimensional stability, eliminates dead zones in the work area, and enhances product quality consistency.
Smart Images

Figure CN224212970U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of needle-punched felt processing technology, specifically a needle-punched felt shrinkage and shaping device. Background Technology
[0002] Needle-punched felt is an important material widely used in industrial filtration, thermal insulation, and building materials. Its quality and performance directly affect the effectiveness of related products. Shrinkage setting is a crucial step in the production of needle-punched felt, ensuring stable dimensions and good physical properties.
[0003] Traditional needle-punched felt shrinkage and setting devices have many drawbacks. In terms of heat supply, common devices struggle to achieve uniform heat distribution throughout the working area. Excessive heat in some areas can lead to over-shrinking of the needle-punched felt and fiber damage, affecting product strength and filtration accuracy. Conversely, insufficient heat in other areas fails to achieve the desired shrinkage and setting effect, resulting in poor product dimensional stability. Furthermore, uneven heat distribution can create dead zones within the device, preventing the needle-punched felt in these areas from being adequately processed, leading to inconsistent product quality. Therefore, we propose a needle-punched felt shrinkage and setting device. Utility Model Content
[0004] To address the shortcomings of existing technologies, the purpose of this utility model is to provide a needle-punched felt shrinkage and shaping device that has the advantage of uniform heating. This solves many drawbacks of traditional needle-punched felt shrinkage and shaping devices. In terms of heat supply, common devices struggle to achieve uniform heat distribution throughout the working area. Excessive heat in some areas may lead to excessive shrinkage of the needle-punched felt and fiber damage, affecting product strength and filtration accuracy. Conversely, insufficient heat in some areas fails to achieve the desired shrinkage and shaping effect, resulting in poor product dimensional stability. Furthermore, due to uneven heat distribution, dead zones can easily appear inside the device, preventing the needle-punched felt in these dead zones from being adequately processed, leading to inconsistent product quality.
[0005] To achieve the above objectives, this utility model provides the following technical solution: a needle-punched felt shrinkage and shaping device, comprising a lower shell, an upper shell being provided at the top of the lower shell, hollow blocks being fixedly connected to the front and back of both the lower and upper shells, a reciprocating screw being movably connected to one side of each hollow block, motors being provided on the left side of the bottom of the lower shell and the left side of the top of the upper shell, a threaded sleeve being threadedly connected to the surface of the reciprocating screw, a connecting seat being fixedly connected to one side of the threaded sleeve, a movable rod being movably connected to one side of the connecting seat, an adjusting seat being movably connected to one side of the movable rod, a nozzle being fixedly connected to one side of the adjusting seat, a hot air blower being provided at the top of the upper shell and the bottom of the lower shell, a corrugated pipe being connected to one side of each hot air blower, and a nozzle being connected to one side of the corrugated pipe, and a temperature-conducting plate being fixedly connected to the top of the inner wall of the lower shell and the bottom of the inner wall of the upper shell.
[0006] Preferably, a workbench is provided at the bottom of the lower shell, and vertical columns are fixedly connected to the four corners of the top of the workbench. A top plate is fixedly connected to the top of the vertical columns, and an electric telescopic rod is fixedly connected to the central axis of the top of the top plate. A pressure sensor is fixedly connected to the bottom of the electric telescopic rod, and a connecting frame is fixedly connected to the bottom of the pressure sensor. The bottom of the connecting frame is fixedly connected to the upper shell.
[0007] Preferably, a fixing seat is fixedly connected to the left side of the bottom of the lower shell and the left side of the top of the upper shell, and one side of the fixing seat is fixedly connected to the motor.
[0008] Preferably, a fixing block is fixedly connected to the right side of the bottom of the lower shell and the right side of the top of the upper shell, and one side of the fixing block is fixedly connected to the hot air blower.
[0009] Preferably, cylinders are fixedly connected to the four corners of the bottom of the lower shell, and the bottom of the cylinders are fixedly connected to the worktable.
[0010] Preferably, the inner cavity of the threaded sleeve is slidably connected to a crossbar, and both sides of the crossbar are fixedly connected to the hollow block.
[0011] Preferably, sliding sleeves are fixedly connected to both sides of the bottom of the nozzle, and sliding rods are fixedly connected to both sides of the inner walls of the upper and lower shells, with the surface of the sliding rods slidably connected to the sliding sleeves.
[0012] Preferably, a synchronous pulley is fixedly connected to both the output end of the motor and the left side of the reciprocating lead screw, and a synchronous belt is engaged on the surface of the synchronous pulley.
[0013] Compared with the prior art, the present invention provides a needle-punched felt shrinkage and shaping device, which has the following beneficial effects:
[0014] 1. When this utility model is working, the hot air fan is started by the external PLC controller to draw in the outside gas. The gas is then sprayed out through the bellows and nozzles, so that the gas comes into contact with the temperature guide plate. The temperature guide plate then conducts the heat out and contacts the material. At the same time, the motor is started, which causes the reciprocating screw to rotate. The reciprocating screw drives the threaded sleeve to move, the threaded sleeve drives the connecting seat to move, the connecting seat drives the movable rod to move, the movable rod drives the adjusting seat to move, and the adjusting seat drives the nozzle to move. This allows for easy adjustment of the nozzle position, resulting in uniform heat distribution and thus uniform heating of the material.
[0015] 2. This utility model sets a pressure value, spreads the material evenly on the top of the bottom temperature-conducting plate, and then starts the electric telescopic rod. The electric telescopic rod drives the pressure sensor to move, the pressure sensor drives the connecting frame to move, the connecting frame drives the upper shell to move, thereby driving the top temperature-conducting plate to move, thus squeezing the material. After the pressure sensor detects that the pressure value is the same as the set value, it will control the electric telescopic rod to stop working. Attached Figure Description
[0016] Figure 1 This is a schematic diagram of the structure of this utility model;
[0017] Figure 2 This is a three-dimensional structural diagram of the present invention;
[0018] Figure 3 This is a cross-sectional structural diagram of the present invention.
[0019] In the diagram: 1. Lower shell; 2. Upper shell; 3. Hollow block; 4. Reciprocating lead screw; 5. Motor; 6. Fixed base; 7. Synchronous pulley; 8. Synchronous belt; 9. Threaded sleeve; 10. Connecting seat; 11. Movable rod; 12. Adjusting seat; 13. Nozzle; 14. Hot air blower; 15. Fixed block; 16. Corrugated pipe; 17. Workbench; 18. Temperature guiding plate; 19. Vertical column; 20. Top plate; 21. Electric telescopic rod; 22. Pressure sensor; 23. Connecting frame. 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] Secondly, the term "an embodiment" or "embodiment" as used herein refers to a specific feature, structure, or characteristic that may be included in at least one implementation of the present invention. The phrase "in one embodiment" appearing in different places in this specification does not necessarily refer to the same embodiment, nor is it a single or selective embodiment that excludes other embodiments. Example 1:
[0022] Please see Figure 1 , Figure 2 and Figure 3 As shown, this utility model provides a needle-punched felt shrinkage and shaping device, including a lower shell 1, an upper shell 2 on the top of the lower shell 1, hollow blocks 3 fixedly connected to the front and back of both the lower shell 1 and the upper shell 2, a reciprocating screw 4 movably connected to one side of the hollow block 3, a motor 5 on the left side of the bottom of the lower shell 1 and the left side of the top of the upper shell 2, a threaded sleeve 9 threadedly connected to the surface of the reciprocating screw 4, a connecting seat 10 fixedly connected to one side of the threaded sleeve 9, a movable rod 11 movably connected to one side of the connecting seat 10, an adjusting seat 12 movably connected to one side of the movable rod 11, a nozzle 13 fixedly connected to one side of the adjusting seat 12, a hot air blower 14 on the top of the upper shell 2 and the bottom of the lower shell 1, a corrugated pipe 16 connected to one side of the hot air blower 14, and a nozzle 13 fixedly connected to one side of the corrugated pipe 16. 3. A temperature-conducting plate 18 is fixedly connected to the top of the inner wall of the lower shell 1 and the bottom of the inner wall of the upper shell 2. A fixing seat 6 is fixedly connected to the left side of the bottom of the lower shell 1 and the left side of the top of the upper shell 2. One side of the fixing seat 6 is fixedly connected to the motor 5. A fixing block 15 is fixedly connected to the right side of the bottom of the lower shell 1 and the right side of the top of the upper shell 2. One side of the fixing block 15 is fixedly connected to the hot air blower 14. A crossbar is slidably connected to the inner cavity of the threaded sleeve 9, and both sides of the crossbar are fixedly connected to the hollow block 3. Sliding sleeves are fixedly connected to both sides of the bottom of the nozzle 13. Sliding rods are fixedly connected to both sides of the inner walls of the upper shell 2 and the lower shell 1, and the surface of the sliding rods is slidably connected to the sliding sleeves. A synchronous pulley 7 is fixedly connected to the output end of the motor 5 and the left side of the reciprocating screw 4. A synchronous belt 8 is meshed on the surface of the synchronous pulley 7.
[0023] The specific function of this technical solution is as follows: During operation, the hot air blower 14 is started by the external PLC controller to draw in external gas. The gas is then sprayed out through the bellows 16 and the nozzle 13, so that the gas comes into contact with the temperature guide plate 18. The heat is then transferred to the material through the temperature guide plate 18. At the same time, the motor 5 is started, which causes the reciprocating screw 4 to rotate. The reciprocating screw 4 drives the threaded sleeve 9 to move, the threaded sleeve 9 drives the connecting seat 10 to move, the connecting seat 10 drives the movable rod 11 to move, the movable rod 11 drives the adjusting seat 12 to move, and the adjusting seat 12 drives the nozzle 13 to move. This allows for easy adjustment of the position of the nozzle 13, resulting in uniform heat distribution and thus uniform heating of the material. Example 2:
[0024] Based on Embodiment 1, this utility model is as follows: Figure 1 , Figure 2 and Figure 3 As shown, a workbench 17 is provided at the bottom of the lower shell 1. Vertical columns 19 are fixedly connected to the four corners of the top of the workbench 17. A top plate 20 is fixedly connected to the top of the vertical columns 19. An electric telescopic rod 21 is fixedly connected to the central axis of the top of the top plate 20. A pressure sensor 22 is fixedly connected to the bottom of the electric telescopic rod 21. A connecting frame 23 is fixedly connected to the bottom of the pressure sensor 22. The bottom of the connecting frame 23 is fixedly connected to the upper shell 2. A cylinder is fixedly connected to the four corners of the bottom of the lower shell 1, and the bottom of the cylinder is fixedly connected to the workbench 17.
[0025] The specific function of this technical solution is as follows: Set the pressure value, spread the material evenly on the top of the bottom temperature-conducting plate 18, and then start the electric telescopic rod 21. The electric telescopic rod 21 drives the pressure sensor 22 to move, the pressure sensor 22 drives the connecting frame 23 to move, the connecting frame 23 drives the upper shell 2 to move, thereby driving the top temperature-conducting plate 18 to move, thereby squeezing the material. After the pressure sensor 22 detects that the pressure value is the same as the set value, it will control the electric telescopic rod 21 to stop working.
[0026] Working principle: During operation, the hot air blower 14 is started by the external PLC controller to draw in external gas. The gas is then sprayed out through the bellows 16 and the nozzle 13, so that the gas comes into contact with the temperature guide plate 18. The temperature guide plate 18 conducts heat out and contacts the material. At the same time, the motor 5 is started, which causes the reciprocating screw 4 to rotate. The reciprocating screw 4 drives the threaded sleeve 9 to move, the threaded sleeve 9 drives the connecting seat 10 to move, the connecting seat 10 drives the movable rod 11 to move, the movable rod 11 drives the adjusting seat 12 to move, and the adjusting seat 12 drives the nozzle 13 to move. This allows for easy adjustment of the position of the nozzle 13, resulting in uniform heat distribution and thus uniform heating of the material.
[0027] Set the pressure value, spread the material evenly on the top of the bottom temperature-conducting plate 18, and then start the electric telescopic rod 21. The electric telescopic rod 21 drives the pressure sensor 22 to move, the pressure sensor 22 drives the connecting frame 23 to move, the connecting frame 23 drives the upper shell 2 to move, thereby driving the top temperature-conducting plate 18 to move, thus squeezing the material. After the pressure sensor 22 detects that the pressure value is the same as the set value, it will control the electric telescopic rod 21 to stop working.
[0028] It is important to note that the constructions and arrangements of this application shown in several different exemplary embodiments are merely illustrative. Although only a few embodiments are described in detail in this disclosure, those who consult this disclosure will readily understand that many modifications are possible (e.g., changes in the size, dimensions, structure, shape and proportion of various elements, as well as parameter values (e.g., temperature, pressure, etc.), mounting arrangements, use of materials, color, orientation, etc.) without substantially departing from the novel teachings and advantages of the subject matter described in this application). For example, an element shown as integrally formed may be composed of multiple parts or elements, the position of elements may be inverted or otherwise altered, and the nature or number or position of discrete elements may be changed or altered. Therefore, all such modifications are intended to be included within the scope of this utility model. The order or sequence of any process or method steps may be changed or reordered according to alternative embodiments. In the claims, any "device plus function" clause is intended to cover the structure described herein that performs the function, and not only structural equivalents but also equivalent structures. Without departing from the scope of this invention, other substitutions, modifications, alterations, and omissions may be made in the design, operation, and arrangement of the exemplary embodiments. Therefore, this invention is not limited to the specific embodiments, but extends to various modifications that still fall within the scope of the appended claims.
[0029] Furthermore, in order to provide a concise description of exemplary embodiments, not all features of actual embodiments (i.e., those features that are not relevant to the best mode of carrying out the present invention as currently considered, or those features that are not relevant to implementing the present invention) may be omitted.
[0030] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit the scope of protection of this utility model. Although this utility model has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solutions of this utility model without departing from the essence and scope of the technical solutions of this utility model.
Claims
1. A needle-punched felt shrinkage and shaping device, comprising a lower shell (1), characterized in that: The lower shell (1) is topped with an upper shell (2). Hollow blocks (3) are fixedly connected to the front and back of both the lower shell (1) and the upper shell (2). A reciprocating screw (4) is movably connected to one side of the hollow block (3). Motors (5) are located on the left side of the bottom of the lower shell (1) and the left side of the top of the upper shell (2). A threaded sleeve (9) is threaded onto the surface of the reciprocating screw (4). A connecting seat (10) is fixedly connected to one side of the threaded sleeve (9). A movably connected... A movable rod (11) is connected to a movable rod (11), and an adjusting seat (12) is movably connected to one side of the movable rod (11). A nozzle (13) is fixedly connected to one side of the adjusting seat (12). A hot air blower (14) is provided at the top of the upper shell (2) and the bottom of the lower shell (1). A corrugated pipe (16) is connected to one side of the hot air blower (14), and one side of the corrugated pipe (16) is connected to the nozzle (13). A temperature guiding plate (18) is fixedly connected to the top of the inner wall of the lower shell (1) and the bottom of the inner wall of the upper shell (2).
2. The needle-punched felt shrinkage and shaping device according to claim 1, characterized in that: The bottom of the lower shell (1) is provided with a workbench (17), and each of the four corners of the top of the workbench (17) is fixedly connected with a vertical column (19). The top of the vertical column (19) is fixedly connected with a top plate (20). An electric telescopic rod (21) is fixedly connected at the central axis of the top of the top plate (20). A pressure sensor (22) is fixedly connected at the bottom of the electric telescopic rod (21). A connecting frame (23) is fixedly connected at the bottom of the pressure sensor (22). The bottom of the connecting frame (23) is fixedly connected to the upper shell (2).
3. The needle-punched felt shrinkage and shaping device according to claim 1, characterized in that: A fixing seat (6) is fixedly connected to the left side of the bottom of the lower shell (1) and the left side of the top of the upper shell (2). One side of the fixing seat (6) is fixedly connected to the motor (5).
4. The needle-punched felt shrinkage and shaping device according to claim 1, characterized in that: A fixing block (15) is fixedly connected to the right side of the bottom of the lower shell (1) and the right side of the top of the upper shell (2), and one side of the fixing block (15) is fixedly connected to the hot air blower (14).
5. The needle-punched felt shrinkage and shaping device according to claim 1, characterized in that: The bottom of the lower shell (1) is fixedly connected to four cylinders at the four corners, and the bottom of the cylinders is fixedly connected to the worktable (17).
6. The needle-punched felt shrinkage and shaping device according to claim 1, characterized in that: The inner cavity of the threaded sleeve (9) is slidably connected to a crossbar, and both sides of the crossbar are fixedly connected to the hollow block (3).
7. The needle-punched felt shrinkage and shaping device according to claim 1, characterized in that: The nozzle (13) has sliding sleeves fixedly connected to both sides of its bottom, and sliding rods are fixedly connected to both sides of the inner walls of the upper shell (2) and the lower shell (1), with the surface of the sliding rods slidably connected to the sliding sleeves.
8. The needle-punched felt shrinkage and shaping device according to claim 1, characterized in that: The output end of the motor (5) and the left side of the reciprocating screw (4) are both fixedly connected to a synchronous pulley (7), and a synchronous belt (8) is engaged on the surface of the synchronous pulley (7).