Raschel warp knitting machine without main beam

Abstract

The utility model relates to a raschel warp knitting machine without a main beam. The raschel warp knitting machine comprises a box body, a plurality of pendulum shaft supports and a guide bar hanging bracket, wherein the pendulum shaft supports are fixedly installed on the box body and arranged in parallel at intervals, and the guide bar hanging bracket is rotationally connected to the pendulum shaft supports through guide bar pendulum shafts. A plurality of guide bars are mounted on the guide bar hanging bracket; according to the main-beam-free Raschel warp knitting machine, through structural optimization, the production efficiency is improved while the quality of fabric is maintained and even improved, and the operation cost is reduced. The warp knitting machine of the company has high market competitiveness and future development potential.

Description

Technical Field

[0001] The utility model relates to the field of textile machinery, in particular to a main beam-less Raschel warp knitting machine. Background Art

[0002] In the textile industry, warp knitting technology is widely used due to its high efficiency and ability to produce fabrics with diverse textures. Raschel warp knitting machines, as an important branch of warp knitting technology, are favored for their ability to produce fabrics with complex structures and patterns. Traditional Raschel warp knitting machines usually contain a main beam structure that supports and drives the key components of the loom. However, this design has limitations in certain aspects, including heavy machine weight, high cost, and complex maintenance.

[0003] Among them, the main beam structure of the existing Raschel warp knitting machine has significantly hindered the further improvement of the operating speed of the Raschel warp knitting machine:

[0004] Mechanical stability: During high-speed movement, the heavy main beam is prone to some deformation, especially during long-term operation and / or high-speed operation. Although this deformation is small, it still affects the alignment of the needle bed and the precise movement of the guide bar, making it difficult to increase the operating speed to ensure the quality of the fabric.

[0005] Thermal expansion: The heat generated when the machine is running will cause the main beam to expand thermally, affecting the accuracy of the machine, so it is necessary to run at a slower speed to reduce heat accumulation.

[0006] Vibration Control: As machine speed increases, the vibration of the main beam also increases. Since the main beam is medium-weight and has a high center of gravity, vibration control becomes more difficult, resulting in reduced precision of the needle bed and other weaving components, affecting the quality of the fabric.

[0007] Resonance frequency: All mechanical structures have their inherent resonant frequency. At a specific speed, the main beam can easily approach the vibration frequency of the machine when it is running, causing resonance and affecting the stable operation of the machine.

[0008] Due to these factors, existing Raschel warp knitting machines must strike a balance between speed, stability and accuracy in their design, making it difficult to further increase the operating speed of the equipment and to further improve production efficiency. Utility Model Content

[0009] The utility model proposes a main beam-less Raschel warp knitting machine, which achieves increased production efficiency and reduced operating costs while maintaining or even improving fabric quality through structural optimization, making the company's warp knitting machine have strong market competitiveness and future development potential.

[0010] The technical solution of the utility model is as follows:

[0011] A main beamless Raschel warp knitting machine comprises a box body, a plurality of swing shaft supports fixedly mounted on the box body and arranged in parallel with each other at intervals, and a comb bar hanger rotatably connected to the swing shaft supports through a comb bar swing shaft; a plurality of comb bars are mounted on the comb bar hanger.

[0012] The comb bar is installed at the front of the comb bar hanger; the rear of the comb bar hanger extends backward and is connected to the driving system in the box through a connecting rod, and the driving crankshaft in the box drives the comb bar hanger to swing around the comb bar swing axis through the connecting rod.

[0013] Wherein, the position of the comb bar swing axis is the same as that of a Raschel warp knitting machine with a main beam.

[0014] Wherein, the swing shaft support is detachably mounted on the upper surface of the box body by bolts.

[0015] Wherein, the warp knitting machine is provided with a pulling roller group on the cloth outlet side; the pulling direction of the pulling roller group is obliquely downward.

[0016] Wherein, the pulling roller group includes an adjustable tension control device to adapt to the pulling requirements of fabrics with different thicknesses and elasticities.

[0017] The utility model has the following beneficial effects:

[0018] 1. Weight reduction

[0019] Removing the main beam structure can significantly reduce the overall weight of the machine. The direct effect of reducing weight is to reduce inertia during starting and stopping, allowing the machine to respond more quickly to acceleration and deceleration commands. Not only does it help increase overall operating speed, it also reduces wear and tear on the machine caused by frequent or sudden stops, thereby extending the service life of the machine.

[0020] 2. Reduced deformation

[0021] The design without main beam means that the supporting structure distributes the load of the machine more evenly, reducing the deformation that may occur due to the weight borne by a single main beam. The structure becomes more rigid and the alignment accuracy is improved, which ensures the stability of the comb swing shaft and comb hanger during weaving and improves the quality of the fabric.

[0022] 3. Improved vibration control

[0023] Due to the removal of the main beam, a more flexible design can be used to effectively absorb and control the vibration generated during machine operation. Compared with the original heavy and high center of gravity main beam, the scheme of removing the main beam improves the dynamic response ability of the machine, helps to reduce the vibration problem caused by high-speed operation, thereby achieving high-speed weaving while ensuring the uniformity and quality of the fabric.

[0024] 4. Improved production efficiency

[0025] Lighter machine structures and greater stability allow warp knitting machines to run faster while maintaining the same fabric quality. This means that more fabric can be produced in the same amount of time, significantly improving production efficiency and economic benefits.

[0026] 5. Reduced manufacturing and maintenance costs

[0027] The manufacturing cost of the main beam is more than 20,000 yuan. No need to beat the main beam reduces the manufacturing cost. In addition, after removing the main beam, the internal structure of the machine becomes more open and easy to access and maintain. This simplifies daily maintenance work, reduces maintenance costs, and reduces downtime caused by poor maintenance.

[0028] 6. Increased technical flexibility

[0029] The beamless design provides greater flexibility for future technology upgrades. With less reliance on heavy structures, designers will have more design space when considering new materials, drive systems, and energy efficiency.

[0030] In general, the main beamless Raschel warp knitting machine of the utility model has achieved increased production efficiency and reduced operating costs while maintaining or even improving fabric quality through structural optimization, which makes the company's warp knitting machine have strong market competitiveness and future development potential. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] Figure 1 is a schematic diagram of the structure of an existing tricot warp knitting machine;

[0032] Figure 2 It is a structural schematic diagram of an existing Raschel warp knitting machine;

[0033] Figure 3 The utility model is a schematic structural diagram of a main beam-less Raschel warp knitting machine.

[0034] The reference numerals in the figure represent:

[0035] 1. Box body; 2. Swing shaft support; 3. Comb swing shaft; 4. Comb hanger; 5. Comb; 6. Pulling roller group; 7. Main beam; 8. Comb swing shaft seat. DETAILED DESCRIPTION

[0036] The present invention will be described in detail below with reference to the accompanying drawings and specific embodiments.

[0037] See also Figure 1, a tricot warp knitting machine is a machine used to produce flat knitted warp knitted fabrics, which usually produces smooth and delicate fabrics, such as underwear and outerwear fabrics. Its main structural components include: needle bed, drive system, yarn supply system, yarn guide system, loop forming device, cloth delivery and pulling system and control system; in the tricot warp knitting machine, the swing shaft support is a structure installed on the warp knitting machine case, which is used to fix and support the comb swing shaft. The comb swing shaft is supported on the swing shaft support and is one of the core components of the warp knitting machine. It runs through the comb hanger and allows the hanger to move along a specified path. The movement of the swing shaft determines the movement mode of the comb, which in turn affects the pattern and structure of the fabric. The comb hanger is a component connected to the comb swing shaft and is used to install the comb. It moves along a predetermined trajectory driven by the swing shaft, driving the comb to pass through the needle bed and introduce the yarn into the needle loop.

[0038] See also Figure 2 The existing Raschel warp knitting machine is a complex textile machine used to produce a variety of warp knitted fabrics. Their structural components are relatively complex to adapt to diverse design and production requirements. The structural components of a typical Raschel warp knitting machine include: a main beam 7, a needle bed and a needle system, a comb system, a drive and control system, a yarn supply system, and a cloth discharging and pulling system.

[0039] Among them, the main beam 7 is the skeleton of the Raschel warp knitting machine, and a comb swing shaft seat 8 is arranged below it to support key components of the machine, such as the comb swing shaft and the comb hanger. It is usually made of heavy steel to ensure sufficient stability and durability.

[0040] The existing main beam structure of the Raschel warp knitting machine has significantly hindered the further improvement of the operating speed of the Raschel warp knitting machine:

[0041] Mechanical stability: During high-speed movement, the heavy main beam is prone to some deformation, especially during long-term operation and / or high-speed operation. Although this deformation is small, it still affects the alignment of the needle bed and the precise movement of the guide bar, making it difficult to increase the operating speed to ensure the quality of the fabric.

[0042] Thermal expansion: The heat generated when the machine is running will cause the main beam to expand thermally, affecting the accuracy of the machine, so it is necessary to run at a slower speed to reduce heat accumulation.

[0043] Vibration Control: As machine speed increases, the vibration of the main beam increases. A heavy and long main beam makes vibration control more difficult, resulting in reduced precision of the needle bed and other weaving components, affecting fabric quality.

[0044] Resonance frequency: All mechanical structures have their inherent resonant frequency. At a specific speed, the main beam can easily approach the vibration frequency of the machine when it is running, causing resonance and affecting the stable operation of the machine.

[0045] Due to these factors, existing Raschel warp knitting machines must strike a balance between speed, stability and accuracy in their design, making it difficult to further increase the operating speed of the equipment and to further improve production efficiency.

[0046] See also Figure 3 To this end, the present embodiment provides a main beamless Raschel warp knitting machine, comprising a box body 1, several swing shaft supports 2, a comb swing shaft 3, a comb hanger 4, several combs 5 and a pulling roller group 6.

[0047] The box 1 is the structural foundation of the entire warp knitting machine and is made of high-strength alloy steel to bear the dynamic load when the machine is in operation. The internal space of the box 1 is designed to install the drive crankshaft and other transmission devices, and its open design is convenient for operators to maintain and adjust.

[0048] The swing shaft supports 2 are evenly distributed on the upper surface of the box 1 and fixed by precision bolts. The detachability of these bolts makes the supports easy to adjust and replace. The distance between the swing shaft supports 2 can be adjusted according to the width and texture requirements of the fabric to adapt to different weaving patterns.

[0049] The position of the comb bar swing shaft 3 is carefully designed to ensure compatibility with the traditional main beam Raschel warp knitting machine and maintain the consistency of the warp knitting machine operation. The comb bar hanger 4 rotates on the comb bar swing shaft 3, with a number of comb bars 5 fixedly installed in the front, and the rear is connected to the drive system inside the box through a connecting rod. This design allows the comb bar hanger to swing around the comb bar swing shaft and drive the comb bar to complete the weaving task.

[0050] The comb bars 5 are mounted at the front end of the comb bar hanger 4, and they are key components for performing the weaving operation. The comb bars 5 are selected according to the design requirements of the fabric and can be easily replaced by a quick-change system to adapt to different fabric structures and textures.

[0051] The pulling roller group 6 is located at the fabric outlet side of the warp knitting machine, and its oblique downward pulling direction helps the fabric to be smoothly discharged. The pulling roller group 6 includes an adjustable tension control device, which can be adjusted according to the thickness and elasticity of the fabric to ensure the consistency of the tension of the fabric during the entire production process.

[0052] The driving crankshaft in the box 1 is driven by a main motor through a series of gears and chains to ensure stable speed and power output. The driving crankshaft transmits power to the comb hanger 4 through a connecting rod, causing it to swing around the comb swing axis 3. The operator can adjust the speed of the motor through the control panel to control the movement speed of the comb 5 to meet the requirements of different fabric designs.

[0053] The main structural innovation of the main beam-less Raschel warp knitting machine of this embodiment is that the main beam structure in the traditional warp knitting machine is removed, and a new type of support and drive system is adopted. This design significantly reduces the weight of the machine, reduces equipment vibration, reduces material and production costs, and can also remove a major obstacle that prevents the Raschel warp knitting machine from increasing its operating speed. At the same time, the simplified structure also makes the machine easier to maintain and reduces downtime.

[0054] In addition, the adjustable design of the swing shaft support allows the machine to flexibly adapt to various fabric width and texture requirements, while the adjustable pulling roller group ensures the consistency and high standards of fabric quality.

[0055] This beamless raschel machine is suitable for the production of various textiles, especially those that require high precision and complex structures, such as clothing, home decorations, medical supplies, etc. Due to its high efficiency and flexibility, this model is particularly suitable for production environments that require fast line changes to produce small batches of diversified products.

[0056] In general, this main beamless Raschel warp knitting machine maintains the weaving accuracy of traditional warp knitting machines, while its innovative structural design greatly improves the convenience and economy of operation. The launch of this machine brings a new solution with high efficiency, energy saving and cost-effectiveness to the textile industry.

[0057] The above description is only an embodiment of the present invention, and does not limit the patent scope of the present invention. Any equivalent structure or equivalent process transformation made by using the contents of the specification and drawings of the present invention, or directly or indirectly applied in other related technical fields, are also included in the patent protection scope of the present invention.

Claims

1. A main beamless Raschel warp knitting machine, characterized in that: The invention comprises a box body (1), a plurality of swing shaft supports (2) fixedly mounted on the box body (1) and arranged in parallel with each other at intervals, and a comb bar hanger (4) rotatably connected to the swing shaft support (2) via a comb bar swing shaft (3); a plurality of comb bars (5) are mounted on the comb bar hanger (4); the comb bar (5) is mounted on the front of the comb bar hanger (4); the rear of the comb bar hanger (4) extends backwards and is connected to a drive system in the box body (1) via a connecting rod, and the driving crankshaft in the box body (1) drives the comb bar hanger (4) to swing around the comb bar swing shaft (3) via the connecting rod; the position of the comb bar swing shaft (3) is the same as that of a Raschel warp knitting machine with a main beam; the swing shaft support (2) is detachably mounted on the upper surface of the box body (1) via bolts; the warp knitting machine is provided with a pulling roller group (6) on the cloth outlet side; the pulling direction of the pulling roller group (6) is obliquely downward.

2. The main beamless Raschel warp knitting machine according to claim 1, characterized in that: The pulling roller group (6) comprises an adjustable tension control device to meet the pulling requirements of fabrics of different thicknesses and elasticities.

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