Transmission support of quilting machine
By adopting a double-ring plate phase difference design, air cooling, and counterweight balance in the transmission bracket of the quilting machine, the vibration and positioning offset problems caused by high-speed rotation of the transmission bracket are solved, achieving higher transmission accuracy and efficiency.
Patent Information
- Application Number
- CN202511307230.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2025-09-13
- Publication Date
- 2025-11-04
AI Technical Summary
Existing quilting machine transmission supports experience vibration and needle bar positioning misalignment due to sudden changes in cam acceleration and unbalanced rotational torque during high-speed operation, leading to problems such as needle breakage and skipped stitches.
The design employs a double-ring plate with a 180° phase difference, combined with an air-cooling mechanism and a detachable counterweight. The centrifugal force of the ring plates is offset and the air-cooling dissipates heat, reducing the vibration amplitude. The synchronous reverse movement of the rollers and the counterweight balance the weight difference, ensuring transmission accuracy and efficiency.
It effectively reduces vibration amplitude, improves transmission accuracy and efficiency, avoids mechanical failures caused by thermal expansion jamming and uneven gravity, and ensures the stable operation of the quilting machine.
Smart Images
Figure CN120889101A_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The present application relates to the technical field of quilting machines, in particular to a transmission support of a quilting machine. BACKGROUND
[0002] The quilting machine is a kind of textile machinery for surface stitching linear pattern of bedding, clothing, shoes and bags, etc., which can be divided into two categories of shuttleless machine and shuttle machine, both of which adopt multi-needle design and computer visual interface to control the required pattern of mechanical stitching, and the transmission support of the quilting machine is a core structural part of the bearing and transmission system (such as main shaft, connecting rod, cam, needle bar driving mechanism, etc.) in the quilting machine, which is a skeleton system for transmitting power and ensuring movement accuracy. The existing transmission support usually adopts two ways of coaxial cam and symmetrical connecting rod to realize the alternating movement of needle bar and pressure plate, and in the case of high-speed operation, if the cam profile line has acceleration mutation (such as variable cosine law), it will cause impact vibration, and the completely symmetrical crank connecting rod will produce unbalanced rotary torque when rotating at high speed, causing strong vibration, leading to needle bar positioning deviation, and causing problems such as needle breakage and wire jump, therefore, the present application provides a transmission support of a quilting machine. SUMMARY
[0003] The purpose of the present application is to solve the problems in the background art, and the present application provides a transmission support of a quilting machine.
[0004] In order to achieve the above purpose, the present application specifically adopts the following technical scheme: A transmission support of a quilting machine, comprising a cross beam frame, a main shaft is rotatably arranged on the cross beam frame, one end of the main shaft is connected with a motor arranged on the cross beam frame, and further comprising: A plurality of transmission mechanisms are arranged on the main shaft, the transmission mechanism comprises a disc coaxially fixed on the main shaft, a ring plate is eccentrically fixed on both sides of the disc, the eccentric directions of the two ring plates are opposite, two horizontal plates are fixed on the cross beam frame, a vertical rod is slidably penetrated through the two horizontal plates and the two vertical rods are respectively corresponding to the two ring plates, two rollers are arranged on the vertical rod and the two rollers are respectively in rolling connection with the inner and outer walls of the ring plate, and a needle bar frame and a pressure rod frame are respectively arranged at the bottom ends of the two vertical rods; A forced air cooling mechanism is arranged on the cross beam frame, which is used for air cooling and heat dissipation of the plurality of ring plates.
[0005] Further, a groove is penetrated through the vertical rod, a bidirectional screw rod is rotatably penetrated through the inner wall of the groove, the two ends of the bidirectional screw rod are respectively threadedly sleeved with a movable block, the two rollers are respectively arranged on the two movable blocks, and a spring is arranged between the two movable blocks and sleeved on the bidirectional screw rod.
[0006] Further, the ring plate is internally provided with an annular cavity, a plurality of partition plates are fixedly arranged in the annular cavity and are used for separating the annular cavity into a plurality of fan-shaped cavities which are not communicated with each other, a through hole is arranged on the ring plate and is communicated with the fan-shaped cavities, and a plugging cap is threadedly inserted into the through hole.
[0007] Further, the vertical rod is detachably provided with a counterweight.
[0008] Further, the vertical rod is fixedly provided with a bearing plate, the counterweight is arranged on the bearing plate, and a pressing plate for pressing the counterweight is threadedly sleeved on the vertical rod.
[0009] Further, the counterweight comprises two half-ring blocks, two T-shaped grooves are arranged on one of the half-ring blocks, two T-shaped blocks are arranged on the other half-ring block, and the two T-shaped blocks are respectively inserted into the two T-shaped grooves.
[0010] Further, the horizontal plate is fixed to the horizontal beam frame through cooperation of a screw rod and a screw hole, a guide cylinder is fixedly arranged on the horizontal plate, the vertical rod is movably penetrated through the guide cylinder, a plurality of rolling balls are arrayed and inserted into the inner wall of the guide cylinder and rollingly abut against the outer wall of the vertical rod.
[0011] Further, the air cooling mechanism comprises a fan arranged on the horizontal beam frame, an air outlet of the fan is communicated with a duct, a plurality of air pipes are arrayed and communicated with the duct, and the plurality of air pipes are respectively corresponding to the plurality of ring plates.
[0012] Further, the end of the air pipe is communicated with a U-shaped pipe through a branch pipe, a plurality of jet pipes are arrayed and communicated with the inner curved side of the U-shaped pipe.
[0013] Further, the branch pipe is a corrugated flexible pipe, a bearing wheel is arranged on the U-shaped pipe and rollingly overlaps the outer wall of the ring plate, and a guide rod is fixedly arranged on the U-shaped pipe and movably penetrates through the horizontal beam frame.
[0014] The beneficial effects of the present application are as follows: 1. In the present application, the phase difference of 180° between the two ring plates makes the centrifugal forces of the two ring plates counteract each other when the main shaft rotates, so as to balance the rotation torque of the main shaft, thereby reducing the vibration amplitude.
[0015] 2. In the present application, the inner and outer walls of the ring plate are blown and cooled by the air cooling mechanism, so as to reduce the temperature of the ring plate during high-speed operation, avoid thermal expansion caused by high temperature of the ring plate, avoid jamming of the roller and the ring plate, and make the rolling cooperation of the two more smooth.
[0016] 3、In the present application, by adjusting the synchronous reverse movement of the two rollers, it can ensure that the two rollers can effectively resist the inner and outer walls of the ring plate, forming a force closed constraint, thereby further reducing the vibration amplitude.
[0017] 4、In the present application, by detachably installing the counterweight on the vertical rod, even if the gravity of the needle bar frame and the pressing rod frame is different, the counterweight of the counterweight can balance the weight difference, compensate the residual centrifugal force caused by the different gravity, and ensure that the centrifugal forces of the two ring plates can be cancelled out, thereby further reducing the vibration amplitude. BRIEF DESCRIPTION OF DRAWINGS
[0018] Figure 1 is a perspective view of the present application; Figure 2 is another perspective view of the present application; Figure 3 is a perspective view of the transmission mechanism of the present application; Figure 4 is a perspective view of the transmission mechanism of the present application; Figure 5 is another perspective view of the transmission mechanism of the present application; Figure 6 is a partial perspective view of the present application; Figure 7 is an enlarged view of A in the present application; Figure 1 Figure 8 is an enlarged view of B in the present application; Figure 4 Figure 9 is an enlarged view of C in the present application. Figure 4
[0019] Reference signs: 1, beam frame; 2, main shaft; 3, motor; 4, transmission mechanism; 5, air cooling mechanism; 6, groove; 7, bidirectional screw; 8, movable block; 9, spring; 10, annular cavity; 11, partition plate; 12, counterweight; 13, bearing plate; 14, pressing plate; 15, guide cylinder; 16, ball; 401, disc; 402, ring plate; 403, cross plate; 404, vertical rod; 405, roller; 406, needle bar frame; 407, pressing rod frame; 501, fan; 502, guide pipe; 503, air pipe; 504, branch pipe; 505, U-shaped pipe; 506, jet pipe; 507, bearing wheel; 508, guide rod; 1201, half ring block; 1202, T-shaped groove; 1203, T-shaped block. DETAILED DESCRIPTION
[0020] In order to make the purpose, technical scheme and advantages of the embodiments of the present application more clear, the technical scheme in the embodiments of the present application will be described clearly and completely below in combination with the drawings in the embodiments of the present application.
[0021] As Figures 1-9 shown, one embodiment of the present application proposes a driving support of a quilting machine, comprising a beam frame 1, a main shaft 2 is rotatably arranged on the beam frame 1, one end of the main shaft 2 is connected with a motor 3 arranged on the beam frame 1, preferably, a plurality of connecting plates are arranged on the beam frame 1, the main shaft 2 is rotatably arranged on the plurality of connecting plates, the connecting plate comprises two connecting blocks, the two connecting blocks are fixed by the cooperation of bolts and nuts, since the main shaft 2 has a certain length, it is used for installing a plurality of needle plate driving members, the installation mode of the plurality of connecting plates is used for improving the supportability of the main shaft 2 and ensuring the stability of the main shaft 2 driving, which belongs to the prior art distinguishing features of the present application; The present application also includes the following technical features: a plurality of transmission mechanisms 4 are arranged on the main shaft 2, preferably, the transmission mechanism 4 is located between adjacent two mounting plates, the transmission mechanism 4 comprises a disc 401 coaxially and fixedly arranged on the main shaft 2, two ring plates 402 are eccentrically fixed on the two sides of the disc 401, the eccentric directions of the two ring plates 402 are opposite, preferably, the two ring plates 402 have equal mass and the same eccentric distance, and the phase difference between the two ring plates 402 is 180°, two horizontal plates 403 are fixedly arranged on the beam frame 1, a vertical rod 404 is slidably penetrated through the two horizontal plates 403 and the two vertical rods 404 correspond to the two ring plates 402 respectively, two rollers 405 are arranged on the vertical rod 404, the two rollers 405 are respectively rollingly lapped with the inner and outer walls of the ring plate 402, needle rod frames 406 and pressing rod frames 407 are arranged at the bottom ends of the two vertical rods 404 respectively, since the two rollers 405 on the vertical rod 404 are rollingly lapped with the inner and outer walls of the ring plate 402 and the ring plate 402 is eccentrically fixed on the disc 401, when the main shaft 2 rotates, the disc 401 and the ring plate 402 are driven to rotate, when the ring plate 402 rotates eccentrically, the two rollers 405 are rollingly lapped with the inner and outer walls of the ring plate 402 respectively, so as to drive the vertical rod 404 to reciprocatingly slide, since the eccentric directions of the two ring plates 402 are opposite, when the main shaft 2 rotates, the two vertical rods 404 are synchronously and reversely slid, so as to drive the needle rod frame 406 and the pressing rod frame 407 to alternately move up and down, the design of the phase difference of 180° between the two ring plates 402 makes the centrifugal force of the two ring plates 402 offset each other when the main shaft 2 rotates, so as to reduce the vibration amplitude and improve the quilting quality; The air cooling mechanism 5 is arranged on the beam frame 1 and is used for air cooling and heat dissipation of the plurality of ring plates 402, since the rollers 405 are rollingly lapped with the inner and outer walls of the ring plate 402, when high-speed operation is performed, the rolling friction will make the ring plate 402 heat up, the air cooling mechanism 5 is arranged to air cool and heat dissipate the ring plate 402, so as to avoid thermal expansion of the ring plate 402 due to high temperature and avoid jamming of the rollers 405 and the ring plate 402, so that the rolling cooperation of the two is more smooth; In the scheme, the design of the double ring plate 402 phase difference 180 degrees, so that the main shaft 2 rotation, two ring plate 402 centrifugal force just offset each other, to ensure that the main shaft 2 rotation torque balance, thereby reducing the amplitude of vibration, compared with the traditional coaxial cam and symmetric linkage structure, double ring plate 402 phase difference design, so that the work reciprocating inertia force is small, the amount of vibration excitation is small, improve its transmission accuracy and efficiency.
[0022] As Figure 8 shown, the further technical scheme of the application for the roller 405 is disclosed, the vertical rod 404 is provided with a groove 6, the inner wall of the groove 6 is rotatably provided with a bidirectional screw rod 7 on the opposite side, the two ends of the bidirectional screw rod 7 are respectively threaded with a movable block 8, two rollers 405 are arranged on the two movable blocks 8 respectively, a spring 9 is arranged between the two movable blocks 8 and sleeved on the bidirectional screw rod 7, the bidirectional screw rod 7 is twisted to move, and under the action of the bidirectional screw, the two movable blocks 8 are driven to move synchronously and reversely, since the two rollers 405 are arranged on the two movable blocks 8 respectively, the two rollers 405 are driven to move synchronously and reversely, so that the two rollers 405 can effectively abut against the inner and outer walls of the ring plate 402, forming force closed constraint, thereby further reducing the amplitude of vibration, and the spring 9 is connected between the two movable blocks 8, when the two movable blocks 8 approach each other, the spring 9 is compressed, and the spring 9 applies a counter abutting force to the movable block 8, thereby preventing the movable block 8 from rotating loose, so as to ensure that the two rollers 405 effectively roll against the ring plate 402, and ensure the force closed constraint.
[0023] As Figure 5 and Figure 8 shown, the further technical scheme of the application for the ring plate 402 is disclosed, the ring plate 402 is provided with a ring cavity 10, a plurality of partition plates 11 are fixedly arranged in the ring cavity 10, the ring cavity 10 is divided into a plurality of fan-shaped cavities which are not communicated with each other, the ring plate 402 is provided with a through hole which is communicated with the fan-shaped cavities, and a plugging cap is threaded inserted in the through hole. By arranging the ring cavity 10 in the ring plate 402 and dividing the ring cavity 10 into a plurality of fan-shaped cavities by the partition plates 11, high-density particle damping layers (lead particles or tungsten powder mixed with silica gel carrier) can be added into the fan-shaped cavities through the through hole, the filling amount is 70%-80% of the fan-shaped cavities, a thermal expansion space is reserved, and then the through hole is plugged by the plugging cap. When the ring plate 402 rotates with the disc 401, the lead particles roll in the fan-shaped cavities, the particles rub against each other to dissipate vibration energy, the high-frequency resonance peak value is reduced, and the vibration reduction effect is further improved.
[0024] As Figure 3 and Figure 5As shown, a further technical solution for the vertical rod 404 is disclosed in this invention. A counterweight 12 is detachably installed on the vertical rod 404. Since the weights of the needle bar frame 406 and the pressure bar frame 407 are different, by setting the counterweight 12 on the vertical rod 404, the weights of the two vertical rods 404 are made similar, so as to play the role of counterweight balancing the weight difference, compensating for the residual centrifugal force caused by the difference in weight, and ensuring that the centrifugal forces of the two ring plates 402 can cancel each other out, thereby further reducing the vibration amplitude.
[0025] like Figure 6 As shown, a further technical solution for the counterweight 12 of the present invention is disclosed. A bearing plate 13 is fixed on the vertical rod 404, and the counterweight 12 is placed on the bearing plate 13. A pressure plate 14 for pressing the counterweight 12 is threaded on the vertical rod 404. When the counterweight 12 is added, the pressure plate 14 is twisted to move upward. According to the weight difference, the counterweight 12 is placed on the bearing plate 13. Then the pressure plate 14 is twisted to rotate and move, so that the pressure plate 14 moves downward and cooperates with the bearing plate 13 to press and fix the counterweight 12, so as to play the role of counterweight balancing the weight difference.
[0026] like Figure 6 The specific structure of the counterweight 12 of the present invention is disclosed. The counterweight 12 includes two semi-ring blocks 1201. Two T-shaped grooves 1202 are formed on one semi-ring block 1201, and two T-shaped blocks 1203 are formed on the other semi-ring block 1201. The two T-shaped blocks 1203 are respectively inserted into the two T-shaped grooves 1202. The counterweight 12 is composed of two semi-ring blocks 1201. When counterweighting, the inner walls of the two semi-ring blocks 1201 are first attached to the vertical rod 404, maintaining vertical misalignment. Then, one semi-ring block 1201 is moved down so that the two T-shaped blocks 1203 are respectively inserted into the two T-shaped grooves 1202. At this time, the two semi-ring blocks 1201 can form a ring block that surrounds the vertical rod 404. This method allows the counterweight 12 to maintain a coaxial state with the vertical rod 404, ensuring that the center of gravity is vertical, thereby further improving the counterweight effect.
[0027] like Figure 3 and Figure 9As shown, the further technical scheme of the application for the vertical rod 404 sliding is disclosed, the horizontal plate 403 is fixed with the cross beam frame 1 through the cooperation of the screw rod and the screw hole, the guide cylinder 15 is fixed on the horizontal plate 403, the vertical rod 404 movably penetrates the guide cylinder 15, a plurality of rolling balls 16 are arranged and rolling inserted on the inner wall of the guide cylinder 15, the plurality of rolling balls 16 rolling abut against the outer wall of the vertical rod 404, the horizontal plate 403 is fixed with the cross beam frame 1 through the cooperation of the bolt and the nut, so that the horizontal plate 403 can be detachably installed, and the vertical rod 404 and other accessories are convenient to disassemble and maintain, through the arrangement of the guide cylinder 15 and the rolling ball 16, the rolling contact of the rolling ball 16 and the vertical rod 404, not only the vertical rod 404 can vertically slide, the precision is ensured, but also the sliding frictional resistance is reduced, the vertical rod 404 slides more smoothly, and the vibration amplitude is further reduced.
[0028] As shown in the figure, Figure 2 The specific structure of the air cooling mechanism 5 of the application is disclosed, the air cooling mechanism 5 comprises the fan 501 arranged on the cross beam frame 1, the air outlet of the fan 501 is communicated with the duct 502, a plurality of air pipes 503 are arrayed and communicated on the duct 502, the plurality of air pipes 503 are respectively and one by one corresponding to the plurality of ring plates 402, the fan 501 works, air outside is sucked into, and the airflow is first delivered into the duct 502 and then is branched into the plurality of air pipes 503, so that the airflow is divided into a plurality of air flows, the plurality of air flows respectively blow and wipe the plurality of ring plates 402, so that the ring plate 402 is air-cooled and cooled, and thermal expansion is avoided.
[0029] As shown in the figure, Figure 7 The further technical scheme of the application for the air pipe 503 is disclosed, the end of the air pipe 503 is communicated with the U-shaped pipe 505 through the branch pipe 504, a plurality of jet pipes 506 are arrayed and communicated on the inner bending side of the U-shaped pipe 505, when the ring plate 402 rotates, the ring plate 402 movably penetrates the gap between the U-shaped pipes 505, the airflow flows from the air pipe 503 into the branch pipe 504, and then flows into the U-shaped pipe 505, and finally is sprayed from the plurality of jet pipes 506, so that the inner and outer walls of the ring plate 402 are blown and wiped to dissipate heat, and the air-cooled heat dissipation effect of the ring plate 402 is further improved.
[0030] As shown in the figure, Figure 7As shown, the further technical scheme of the application for the U-shaped pipe 505 is disclosed, the branch pipe 504 adopts the corrugated hose, the bearing wheel 507 is arranged on the U-shaped pipe 505, the bearing wheel 507 is in rolling lap with the outer side wall of the ring plate 402, the guide rod 508 is fixed on the U-shaped pipe 505 and penetrates the beam frame 1, by constructing the branch pipe 504 as the corrugated hose, the bearing wheel 507 and the guide rod 508 are arranged on the U-shaped pipe 505, when the ring plate 402 rotates, the bearing wheel 507 rolls and contacts with the outer wall of the ring plate 402, even if the ring plate 402 is eccentric rotation, but with the rotation, the position of the U-shaped pipe 505 can also be self-adaptively adjusted, which can not only ensure that the nozzle 506 does not contact with the inner wall of the ring plate 402, prevents the interference to the rotation of the ring plate 402, but also can ensure that the nozzle 506 is close to the inner and outer walls of the ring plate 402, ensures the air cooling heat dissipation effect.
[0031] The above description of disclosed embodiments enables one skilled in the art to make or use the application. Numerous modifications to these embodiments would be apparent to those skilled in the art, and the generic principles defined herein can be applied to other embodiments without departing from the spirit or scope of the application. Thus, the present application is not to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.
Claims
1. A transmission support for a quilting machine, comprising a crossbeam frame (1), wherein a main shaft (2) is rotatably mounted on the crossbeam frame (1), and one end of the main shaft (2) is connected to a motor (3) mounted on the crossbeam frame (1), characterized in that, Also includes: Several transmission mechanisms (4) are all set on the main shaft (2). The transmission mechanism (4) includes a disc (401) coaxially fixed on the main shaft (2). Both sides of the disc (401) are eccentrically fixed with ring plates (402). The two ring plates (402) are eccentrically opposite. Two horizontal plates (403) are fixed on the crossbeam frame (1). Vertical rods (404) slide through the two horizontal plates (403) and the two vertical rods (404) correspond one-to-one with the two ring plates (402). Two rollers (405) are set on the vertical rods (404). The two rollers (405) roll and overlap with the inner and outer walls of the ring plates (402) respectively. The bottom ends of the two vertical rods (404) are respectively provided with needle bar frame (406) and pressure bar frame (407). The air-cooling mechanism (5) is set on the crossbeam frame (1) and is used to air-cool the heat dissipation of several ring plates (402).
2. The transmission bracket of the quilting machine according to claim 1, characterized in that, A groove (6) is provided through the vertical rod (404). A bidirectional screw (7) is rotatably passed through the inner wall of the groove (6) on opposite sides. Movable blocks (8) are threaded on both ends of the bidirectional screw (7). Two rollers (405) are respectively set on the two movable blocks (8). A spring (9) is installed between the two movable blocks (8) and sleeved on the bidirectional screw (7).
3. The transmission bracket of the quilting machine according to claim 1, characterized in that, The annular plate (402) has an annular cavity (10) inside, and several partitions (11) are fixed inside the annular cavity (10) to divide the annular cavity (10) into several non-communicating fan-shaped cavities. The annular plate (402) has a through hole that communicates with the fan-shaped cavities, and a sealing cap is threaded into the through hole.
4. The transmission bracket of the quilting machine according to claim 1, characterized in that, A counterweight (12) is detachably installed on the vertical rod (404).
5. The transmission bracket of the quilting machine according to claim 4, characterized in that, A bearing plate (13) is fixed on the vertical rod (404), and a counterweight (12) is placed on the bearing plate (13). A pressure plate (14) for pressing the counterweight (12) is threaded on the vertical rod (404).
6. The transmission bracket of the quilting machine according to claim 4, characterized in that, The counterweight (12) includes two semi-ring blocks (1201), one of which has two T-shaped grooves (1202) and the other has two T-shaped blocks (1203), which are respectively inserted into the two T-shaped grooves (1202).
7. The transmission bracket of the quilting machine according to claim 1, characterized in that, The horizontal plate (403) is fixed to the crossbeam frame (1) by the cooperation of the screw and the screw hole. A guide cylinder (15) is fixed on the horizontal plate (403). The vertical rod (404) moves through the guide cylinder (15). A number of rolling balls (16) are arranged in an array on the inner wall of the guide cylinder (15). The rolling balls (16) roll against the outer wall of the vertical rod (404).
8. The transmission bracket of the quilting machine according to claim 1, characterized in that, The air-cooling mechanism (5) includes a fan (501) mounted on a crossbeam frame (1). The air outlet of the fan (501) is connected to a duct (502). Several air ducts (503) are arrayed and connected on the duct (502). The several air ducts (503) correspond one-to-one with several ring plates (402).
9. The transmission bracket of the quilting machine according to claim 8, characterized in that, The end of the duct (503) is connected to a U-shaped pipe (505) via a branch pipe (504), and the inner curved side of the U-shaped pipe (505) is connected to a number of nozzles (506).
10. The transmission bracket of the quilting machine according to claim 9, characterized in that, The branch pipe (504) is a corrugated flexible hose, and a bearing wheel (507) is provided on the U-shaped pipe (505). The bearing wheel (507) rolls and overlaps with the outer wall of the ring plate (402). A guide rod (508) with an end movable through the crossbeam frame (1) is fixed on the U-shaped pipe (505).