Gauze heald frame structure for a projectile loom
Patent Information
- Application Number
- CN202522113481.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-09-30
- Publication Date
- 2026-09-04
- Estimated Expiration
- 2035-09-30
AI Technical Summary
[0003]传统纱罗综框常存在框架连接强度不足、长期运行易出现形变，以及穿综部件安装固定不够稳固、经纱引导精度低等问题，导致织造过程中经纱易偏移、断裂，不仅降低了织物成品率，还增加了设备维护成本，难以满足高效、高质量的织造需求
1.本实用新型提出的一种片梭织机的纱罗综框结构通过侧架和加固杆的双重加固设计，配合连接T块、加强块与连接销轴的复合连接结构，大幅提升了综框整体框架的连接强度与结构稳定性，有效抵抗织造过程中的振动与拉力，避免框架形变，延长综框使用寿命；
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Figure CN224716756U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of application technology of rapier looms, and in particular to a gauze heald frame structure for rapier looms. Background Technology
[0002] In the weaving process of a rapier loom, the leno heald frame, as a key component guiding the movement of the warp yarns, directly affects the fabric quality and production efficiency due to its structural stability and operational reliability.
[0003] Traditional leno heald frames often suffer from insufficient frame connection strength, easy deformation over long-term operation, and insecure installation and fixation of the heald threading components, as well as low warp yarn guiding accuracy. These problems lead to warp yarn misalignment and breakage during weaving, reducing fabric yield and increasing equipment maintenance costs, making it difficult to meet the demands of efficient and high-quality weaving. Therefore, this utility model proposes a leno heald frame structure for a rapier loom. Utility Model Content
[0004] The technical problem to be solved by this utility model is to provide a heddle frame structure for a rapier loom, so as to improve the overall structural strength of the heddle frame, ensure the stable installation of the heddle threading components, improve the warp yarn guiding accuracy, and thus ensure weaving quality and efficiency.
[0005] To solve the above-mentioned technical problems, the present invention provides a leno heald frame structure for a rapier loom, comprising an upper beam and a lower beam, wherein side frames are symmetrically bolted to both ends of the upper beam and the lower beam to increase the connection strength between the end faces of the upper beam and the lower beam. The upper and lower beams are symmetrically connected by reinforcing rods near the middle of their opposite surfaces to further strengthen the strength between the upper and lower beams in conjunction with the side frame. Both the upper and lower beams are equipped with heddle rods on their opposite sides to enable the weaving of the yarn.
[0006] The present invention is further configured such that: a connecting T-block is welded to the opposite face of each of the two side frames near the end face, and the connecting T-block is inserted into the end face of the upper beam and the lower beam.
[0007] Through the above technical solution, the connecting T-block is fixed to the side frame by welding to ensure the stability of the connection between itself and the side frame; its design of inserting into the end face of the upper and lower beams can further increase the contact area and connection depth of the side frame and the upper and lower beams on the basis of bolt connection, limit the relative displacement between the upper and lower beams and the side frame, thereby improving the connection stability of the frame end and avoiding frame deformation caused by loosening of the end connection during long-term operation.
[0008] The present invention is further configured such that: a reinforcing block is bolted to the end face of both the upper beam and the lower beam, and a connecting pin is provided through the reinforcing block, and a connecting T-block is inserted through the connecting pin.
[0009] Through the above technical solution, the reinforcing block is fixed to the end face of the upper and lower beams by bolts, which can enhance the local structural strength of the end face and avoid stress concentration and damage to the beam end face when the connecting pin passes through. The connecting pin passes through both the reinforcing block and the connecting T-block, forming a multi-connection structure of "beam-reinforcing block-pin-T-block-side frame". This transforms the connection between the side frame and the upper and lower beams from a simple bolt connection to a composite fixation of "bolt + pin", which greatly improves the connection strength and effectively resists the vibration and tension of the frame during the weaving process.
[0010] The present invention is further configured such that: the upper beam and the lower beam are both fixedly connected to an L-shaped frame near their end faces by connecting pins, and the end faces of the two heddle rods are respectively engaged and connected to the L-shaped frame.
[0011] Through the above technical solution, the L-shaped frame is fixed to the upper and lower beams by connecting pins, eliminating the need for additional mounting holes, simplifying the installation process and avoiding damage to the beam structure; the heddle rod is connected to the L-shaped frame by a snap-fit mechanism, which not only enables quick assembly but also ensures the installation position accuracy of the heddle rod through the limiting effect of the L-shaped frame, preventing axial offset or radial swaying of the heddle rod during the guiding of the warp yarns, ensuring the stability of the warp yarn movement trajectory, and thus improving the fabric weaving accuracy.
[0012] The present invention is further configured such that: the opposing surfaces of the two side frames are bolted with spring pieces near the connecting T-block position, and the spring pieces are bent and respectively abut against the end faces of the two heddle rods.
[0013] Through the above technical solutions, the spring sheet adopts a bending structure design, which gives it a certain elastic deformation capability; the bolt connection method ensures the reliability of the spring sheet and the side frame, while the design of the spring sheet pressing against the end face of the heddle rod can apply a continuous axial preload to the heddle rod, compensate for the gap that may exist in the engagement connection between the heddle rod and the L-shaped frame, and absorb the slight vibration generated by the heddle rod during weaving, so as to avoid the heddle rod loosening or abnormal noise caused by the gap, and further improve the stability of the heddle rod operation.
[0014] The present invention is further configured such that: multiple guide blocks A and guide blocks B are bolted to the opposite surfaces of the upper beam and the lower beam along the length direction, and guide blocks A are installed on the inner surfaces of the upper beam and the lower beam, while guide blocks B are installed on the outer surfaces of the upper beam and the lower beam.
[0015] Through the above technical solution, guide block A and guide block B are respectively installed on the inner and outer surfaces of the upper and lower beams to form a two-way guiding structure. The equidistant arrangement design ensures that the heald frame can obtain uniform guiding support at each position when it moves in the shuttle loom, avoiding tilting or jamming during the movement of the heald frame. The setting of the guide blocks can reduce the direct friction between the heald frame and other parts of the loom, reduce wear, and at the same time ensure the reciprocating motion accuracy of the heald frame through precise guidance, thereby ensuring the accuracy of the warp yarn shedding movement and providing a guarantee for high-quality weaving.
[0016] The present invention is further configured such that: the top of the upper beam is symmetrically bolted to both sides near the reinforcing rod.
[0017] Through the above technical solution, the drive connectors are symmetrically installed on the top of the upper beam near the reinforcing rod, so that the driving force can be evenly transmitted to the entire heald frame, avoiding deformation of the heald frame due to uneven force. The bolt connection method ensures the connection strength between the drive connectors and the upper beam, which can withstand the reciprocating tension applied by the drive mechanism during weaving. At the same time, it facilitates the disassembly and maintenance of the drive connectors, ensures the stable cooperation between the heald frame and the drive mechanism, and guarantees the synchronicity and reliability of the heald frame movement.
[0018] The beneficial effects of this utility model are as follows: 1. The heddle frame structure of the rapier loom proposed in this utility model has a double reinforcement design of side frame and reinforcing rod, combined with a composite connection structure of connecting T block, reinforcing block and connecting pin, which greatly improves the connection strength and structural stability of the overall heddle frame, effectively resists vibration and tension during the weaving process, avoids frame deformation and extends the service life of the heddle frame. 2. The heddle frame structure of the rapier loom proposed in this utility model achieves precise engagement and installation of the heddle rod through an L-shaped frame, and applies axial preload with the help of springs. At the same time, it is equipped with inner and outer bidirectional guide blocks to ensure stable operation of the heddle rod and precise movement of the heddle frame, which significantly improves the warp yarn guiding accuracy, reduces warp yarn deviation and breakage, and improves the fabric weaving quality and production efficiency. Attached Figure Description
[0019] Figure 1 This is a schematic diagram of the leno heald frame structure of a rapier loom according to the present invention; Figure 2 This is a structural diagram of the side frame in the heddle frame structure of a rapier loom according to the present invention; Figure 3 for Figure 1 Enlarged view of point A in the middle; Figure 4 for Figure 2 Enlarged view of point B in the middle.
[0020] In the diagram: 1. Upper beam; 2. Lower beam; 3. Side frame; 31. Connecting T-block; 32. Spring piece; 4. Reinforcing rod; 5. Heddle rod; 6. Reinforcing block; 7. Connecting pin; 8. L-shaped frame; 9. Guide block A; 10. Guide block B; 11. Drive connector. Detailed Implementation
[0021] The preferred embodiments of the present invention will now be described in detail with reference to the accompanying drawings, so that the advantages and features of the present invention can be more easily understood by those skilled in the art, thereby making a clearer and more definite definition of the scope of protection of the present invention.
[0022] like Figure 1 and Figure 2 As shown, a heald frame structure for a rapier loom includes an upper beam 1 and a lower beam 2. Side frames 3 are symmetrically bolted to both ends of the upper beam 1 and lower beam 2 to increase the connection strength between their end faces. Connecting T-blocks 31 are welded to the opposite faces of the two side frames 3 near their end faces, and these T-blocks 31 are inserted into the end faces of the upper beam 1 and lower beam 2. The connecting T-blocks 31 are fixed to the side frames 3 by welding, ensuring the stability of their connection. This design, inserting into the end faces of the upper beam 1 and lower beam 2, further increases the contact area and connection depth between the side frames 3 and the bolted connections of the upper and lower beams, limiting the relative displacement between the upper beam 1, lower beam 2, and side frames 3, thereby improving the connection stability at the frame ends and preventing... Due to the loosening of the end connections during long-term operation, the frame deforms. The two side frames 3 are bolted to the opposite faces of the connecting T-block 31 with spring pieces 32. The spring pieces 32 are bent and press against the end faces of the two heddle rods 5 respectively. The bent structure of the spring pieces 32 gives them a certain elastic deformation capability. The bolt connection ensures the reliability of the fixation between the spring pieces 32 and the side frames 3. The design of the spring pieces 32 pressing against the end faces of the heddle rods 5 can apply a continuous axial preload to the heddle rods 5, compensate for the gap that may exist when the heddle rods 5 are engaged with the L-shaped frame 8, and absorb the slight vibration generated by the heddle rods 5 during weaving. This prevents the heddle rods 5 from loosening or making abnormal noise due to gaps, and further improves the stability of the heddle rods 5 during operation.
[0023] like Figure 1 As shown, the upper beam 1 and the lower beam 2 are symmetrically connected by reinforcing rods 4 through bolts near the middle position on their opposite sides, in order to further strengthen the strength between the upper beam 1 and the lower beam 2 in conjunction with the side frame 3. Both the upper beam 1 and the lower beam 2 are provided with heddle rods 5 to realize the weaving of the machine thread.
[0024] like Figure 3As shown, both the upper beam 1 and the lower beam 2 are bolted to the end faces of reinforcing blocks 6, and connecting pins 7 are inserted through the reinforcing blocks 6. At the same time, connecting pins 7 are inserted through connecting T-blocks 31. The reinforcing blocks 6 are fixed to the end faces of the upper beam 1 and the lower beam 2 by bolts, which can enhance the local structural strength of the end faces and avoid stress concentration and damage to the beam end faces when the connecting pins 7 are inserted. The connecting pins 7 also pass through the reinforcing blocks 6 and the connecting T-blocks 31, forming a multi-connection structure of "beam body - reinforcing block - pin - T-block - side frame". This transforms the connection between the side frame 3 and the upper and lower beams from a simple bolt connection to a composite fixation of "bolt + pin", which greatly improves the connection strength and effectively resists the vibration and tension of the frame during the weaving process. The upper beam 1 and the lower beam 2 are both fixedly connected to L-shaped frames 8 near their end faces by connecting pins 7. The end faces of the two heddle rods 5 are respectively engaged with the L-shaped frames 8. The L-shaped frames 8 are fixed to the upper and lower beams by connecting pins 7, eliminating the need for additional mounting holes, simplifying the installation process and avoiding damage to the beam structure. The heddle rods 5 are connected to the L-shaped frames 8 by engaging, which not only enables quick assembly but also ensures the installation position accuracy of the heddle rods 5 through the limiting effect of the L-shaped frames 8. This prevents the heddle rods 5 from axially shifting or radially wobbling during the guiding of the warp yarns, ensuring the stability of the warp yarn movement trajectory and thus improving the fabric weaving accuracy.
[0025] like Figure 4 As shown, multiple guide blocks A9 and guide blocks B10 are bolted to the opposite sides of the upper beam 1 and lower beam 2 along the length direction. Guide blocks A9 are installed on the inner surfaces of the upper beam 1 and lower beam 2, while guide blocks B10 are installed on the outer surfaces of the upper beam 1 and lower beam 2. Guide blocks A9 and B10 are installed on the inner and outer surfaces of the upper and lower beams respectively, forming a bidirectional guiding structure. The equidistant arrangement design ensures that the heald frame receives uniform guiding support at each position when it moves in the shuttle loom, avoiding tilting or jamming during the movement of the heald frame. The setting of the guide blocks can reduce the direct friction between the heald frame and other parts of the loom, reduce wear, and at the same time, ensure the accuracy of the reciprocating motion of the heald frame through precise guidance, thereby ensuring the accuracy of the warp yarn shedding movement and providing a guarantee for high-quality weaving.
[0026] like Figure 1 As shown, drive connectors 11 are symmetrically bolted to both sides of the top of the upper beam 1 near the reinforcing rod 4. The drive connectors 11 are symmetrically installed on the top of the upper beam 1 near the reinforcing rod 4, so that the driving force can be evenly transmitted to the entire heald frame, avoiding deformation of the heald frame due to uneven force. The bolted connection method ensures the connection strength between the drive connectors 11 and the upper beam 1, which can withstand the reciprocating tension applied by the drive mechanism during weaving. At the same time, it facilitates the disassembly and maintenance of the drive connectors 11, ensures the stable cooperation between the heald frame and the drive mechanism, and ensures the synchronicity and reliability of the heald frame movement.
[0027] In use, the drive mechanism drives the heald frame to reciprocate through the drive connector 11. The guide block A9 and guide block B10 ensure that the heald frame moves smoothly and accurately. Under the limiting action of the L-shaped frame 8 and the pre-tightening action of the spring 32, the threading rod 5 stably guides the warp yarn to complete the opening movement. Combined with the high-strength structure of the frame body, it effectively ensures the stability of the weaving process and the quality of the fabric.
[0028] The above description is merely an embodiment of this utility model and does 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 heddle frame structure for a rapier loom, comprising an upper beam (1) and a lower beam (2), characterized in that: The upper beam (1) and the lower beam (2) are symmetrically bolted to the two ends of the side frame (3) to increase the connection strength between the end faces of the upper beam (1) and the lower beam (2); The upper beam (1) and the lower beam (2) are symmetrically connected by reinforcing rods (4) near the middle position of their opposite surfaces, in order to further strengthen the strength between the upper beam (1) and the lower beam (2) in conjunction with the side frame (3); Both the upper beam (1) and the lower beam (2) are provided with heddle rods (5) on their opposite sides to realize the weaving of the yarn.
2. The heddle frame structure of a rapier loom according to claim 1, characterized in that: The two side frames (3) are each welded with a connecting T-block (31) near the end face of their opposite sides, and the connecting T-block (31) is inserted into the end face of the upper beam (1) and the lower beam (2).
3. The heddle frame structure of a rapier loom according to claim 2, characterized in that: The upper beam (1) and the lower beam (2) are bolted to the end face of the reinforcing block (6), and a connecting pin (7) is provided through the reinforcing block (6), and the connecting pin (7) is inserted through the connecting T block (31).
4. The heddle frame structure of a rapier loom according to claim 3, characterized in that: The upper beam (1) and the lower beam (2) are fixedly connected to L-shaped frames (8) near their end faces by connecting pins (7), and the end faces of the two threaded rods (5) are respectively engaged and connected to the L-shaped frames (8).
5. The heddle frame structure of a rapier loom according to claim 4, characterized in that: Two side frames (3) are bolted to the opposite faces of the connecting T block (31) with spring pieces (32), and the spring pieces (32) are bent and pressed against the end faces of the two threaded rods (5).
6. The heddle frame structure of a rapier loom according to claim 1, characterized in that: The upper beam (1) and the lower beam (2) are bolted together along the length direction with a plurality of guide blocks A (9) and guide blocks B (10) arranged at equal intervals. The guide blocks A (9) are installed on the inner surfaces of the upper beam (1) and the lower beam (2), while the guide blocks B (10) are installed on the outer surfaces of the upper beam (1) and the lower beam (2).
7. The heddle frame structure of a rapier loom according to claim 1, characterized in that: The top of the upper beam (1) is symmetrically bolted with drive connectors (11) on both sides near the reinforcing rod (4).