Horizontal quilting head

Abstract

The present invention discloses a horizontal quilting head, which includes a pressing plate lifting module for pressing the product, a quilting lifting module provided with a plurality of quilting needles, a thread picking module for connecting the quilting thread, and a power system for driving the pressing plate lifting module, the quilting lifting module and the thread picking module to act. The power system includes a pressing plate transmission shaft connected to the pressing plate lifting module, a quilting transmission shaft connected to the quilting lifting module, and a thread picking transmission shaft for driving the thread picking module. The thread picking transmission shaft is installed on a transmission shaft bracket. The thread picking transmission shaft drives a thread picking cam provided on the transmission shaft bracket. The thread picking cam is connected to a thread picking member, the thread picking member is connected to a thread picking swing rod, the thread picking swing rod is installed on a swing rod shaft, and the swing rod shaft is installed on the transmission shaft bracket; the thread picking member is connected to the thread picking module. Driven by the thread picking transmission shaft, the thread picking module swings up and down to pick up the quilting thread, and the quilting thread on the quilting needle is tightened to prevent the quilting thread from loosening.

Description

Technical Field

[0001] The invention relates to the technical field of textile machinery, in particular to quilting equipment. Background Art

[0002] A quilting machine is a textile machine used to sew linear patterns on mattresses, bedspreads or quilts. Its principle is similar to that of a sewing machine. The movement of a sewing machine is: the textile moves and the machine is stationary; while the movement of a quilting machine is: the machine moves and the textile is stationary.

[0003] With the development of intelligent control technology, quilting machines have gradually developed into computer quilting machines; for computer quilting machines, they generally include a rear roller part, a head part and a front roller part, among which the rear roller part automatically transports mattresses, bedspreads and quilts to the head position of the quilting machine, the head part automatically completes the sewing processing of mattresses, bedspreads and quilts, and the front roller part automatically pulls out the sewn mattresses, bedspreads and quilts.

[0004] The patent document with authorization announcement number CN 207276898 U discloses a quilting machine, including a working platform and a quilting head, the quilting head includes a pressing plate for pressing and holding a product, a needle rack provided with a plurality of quilting needles, a thread supply module for supplying quilting thread to the quilting needles, and a power system in which the pressing plate, the needle rack and the thread supply module are linked. The power system includes a pressing plate drive shaft connected to the pressing plate, a quilting drive shaft connected to the needle rack, a thread supply drive shaft connected to the thread supply module, and a main shaft connected to a power source, the main shaft is connected to a rotating shaft through a first cam-connecting rod mechanism, and the rotating shaft is connected to the quilting drive shaft and the pressing plate drive shaft through a general connecting rod mechanism and a second cam-connecting rod mechanism, respectively.

[0005] The quilting machine described in the above patent can sew the product with the quilting needle while the pressing plate keeps pressing the product, breaking the tradition of synchronous lifting and lowering of the pressing plate and the quilting needle, avoiding the loosening of the quilting thread on the product after quilting, and improving the tightness of the quilting thread on the fabric product. However, after the quilting needle sews the product, the needle holder and the pressing plate need to be lifted up, and the quilting thread on the quilting needle becomes loose. The needle holder and the pressing plate are lowered again to sew the product, which easily causes the quilting thread sewn on the product to become loose, affecting the sewing quality of the product. Summary of the invention

[0006] The technical problem solved by the present invention is how to prevent the quilting lines sewn on the product from becoming loose.

[0007] To solve the above technical problems, the present invention provides the following technical solutions: a horizontal quilting head, comprising a pressing plate lifting module for pressing the product, a quilting lifting module provided with a plurality of quilting needles, a thread picking module for connecting the quilting thread, and a power system for driving the pressing plate lifting module, the quilting lifting module and the thread picking module to act. The power system includes a pressing plate transmission shaft connected to the pressing plate lifting module, a quilting transmission shaft connected to the quilting lifting module, and a thread picking transmission shaft for driving the thread picking module. The thread picking transmission shaft is installed on a transmission shaft bracket. The thread picking transmission shaft drives a thread picking cam provided on the transmission shaft bracket. The thread picking cam is connected to a first rotating portion of the thread picking member. A second rotating portion of the thread picking member is connected to one end of a thread picking swing rod. The other end of the thread picking swing rod is installed on a swing rod shaft. The swing rod shaft is installed on the transmission shaft bracket. The thread picking member is connected to the thread picking module.

[0008] According to the above technical solution, the pressing plate transmission shaft drives the pressing plate lifting module, and the quilting transmission shaft drives the quilting lifting module. The pressing plate lifting module presses the product, and the quilting needles on the quilting lifting module sew the product. After one sewing is completed, the pressing plate lifting module and the quilting lifting module rise and reset. The thread picking transmission shaft drives the thread picking cam. Under the control of the thread picking swing rod, the thread picking cam drives the thread picking member to make irregular up and down swings. The thread picking member drives the thread picking module to swing up and down. The thread picking module picks up the quilting thread passing through the thread picking module, and the quilting thread on the quilting needle is tightened. Then, the product moves forward. Driven by the pressing plate transmission shaft and the quilting transmission shaft, the pressing plate lifting module presses the product, and the quilting needles descend to sew the product. After the pressing plate lifting module and the quilting lifting module rise and reset, driven by the thread picking transmission shaft, the thread picking module picks up the quilting thread. Repeating this way, as the product moves forward, the quilting needles continuously sew the product.

[0009] The thread picking cam of the present invention, under the control of the thread picking swing rod, can drive the connection end of the thread picking member and the thread picking module to slowly descend, but can drive the connection end of the thread picking member and the thread picking module to quickly rise. The slow descent of the thread picking module has a speed difference from the quick descent of the quilting needle. The thread picking module pulls the quilting thread, forcing the quilting needle to pull out the quilting thread from the quilting thread roll located above the quilting head and sew the quilting thread on the product. The quick rise of the thread picking module can quickly tighten the quilting thread on the quilting needle, which is beneficial to the continuous and efficient operation of sewing. Among them, the slow descent of the thread picking module is relative to the quick rise.

[0010] The basic function of the thread picking cam of the present invention is to pick up the quilting thread and tighten the quilting thread on the quilting needle to prevent the quilting thread from loosening. The improved function of the thread picking cam of the present invention is that it can drive the thread picking module to slowly descend and quickly rise. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] The following further describes the present invention with reference to the accompanying drawings:

[0012] Figure 1 Schematic diagram of a horizontal quilting head;

[0013] Figure 2 It is Figure 1 Schematic diagram after hiding the template 61 and the cover 62 for installing the wire wheel in

[0014] Figure 3 It is Figure 2 Schematic diagram obtained by observing the horizontal quilting head from the left side in

[0015] Figure 4 Schematic diagram of the thread taking-up mechanism, the thread taking-up mechanism includes a thread taking-up drive shaft 43, a thread taking-up module 30, a plurality of thread taking-up cams 31, a plurality of thread taking-up members 32, and a plurality of thread taking-up swing rods 33;

[0016] Figure 5 It is Figure 4 Schematic diagram obtained by observing the thread taking-up mechanism from the left side in

[0017] Figure 6 It is Figure 5 Enlarged view at position A in

[0018] Figure 7 Schematic diagram of any one of the plurality of thread taking-up units constituting the thread taking-up mechanism. The thread taking-up unit includes a thread taking-up cam shaft mounted on a drive shaft bracket 44, a pair of thread taking-up cams 31 mounted on the thread taking-up cam shaft, a pair of thread taking-up members 32 mounted on the pair of thread taking-up cams 31 in a one-to-one manner, a pair of thread taking-up swing rods 33 mounted on the pair of thread taking-up members 32 in a one-to-one manner, and a swing rod shaft 330 for mounting the pair of thread taking-up swing rods; wherein, the thread taking-up cam shaft is driven by the thread taking-up drive shaft 43 via a first synchronous belt 35.

[0019] Symbol description in the figure:

[0020] 10. Pressing plate lifting module;

[0021] 20. Quilting lifting module; 21. Quilting needle;

[0022] 30. Thread taking-up module; 31. Thread taking-up cam; 32. Thread taking-up member; 321. First rotating part; 322. Second rotating part; 33. Thread taking-up swing rod; 330. Swing rod shaft; 340. Thread passing hole; 35. First synchronous belt; 36. Thread passing frame;

[0023] 41. Pressing plate drive shaft; 42. Quilting drive shaft; 43. Thread taking-up drive shaft; 44. Drive shaft bracket;

[0024] 51. First cam link mechanism; 52. Second cam link mechanism;

[0025] 61. A template for installing a wire guide pulley, which guides the quilting thread; 62. A cover; 63. A cross beam of the quilting machine head, on which the transmission shaft bracket is installed. Detailed implementation manner

[0026] Combined with Figure 3 , Figure 5 , Figure 6 , the horizontal quilting machine head includes a pressing plate lifting module 10 for pressing the product, a quilting lifting module 20 provided with a plurality of quilting needles, a thread picking module 30 for connecting the quilting thread, and a power system for driving the pressing plate lifting module, the quilting lifting module and the thread picking module to act. The power system includes a pressing plate transmission shaft 41 connected to the pressing plate lifting module, a quilting transmission shaft 42 connected to the quilting lifting module, and a thread picking transmission shaft 43 for driving the thread picking module. The thread picking transmission shaft is installed on the transmission shaft bracket 44. The thread picking transmission shaft drives a thread picking cam 31 provided on the transmission shaft bracket. The thread picking cam is connected to a first rotating part 321 of a thread picking member 32. A second rotating part 322 of the thread picking member is connected to one end of a thread picking swing rod 33. The other end of the thread picking swing rod is installed on a swing rod shaft 330. The swing rod shaft is installed on the transmission shaft bracket 44. The thread picking member 32 is connected to the thread picking module 30.

[0027] In actual operation, the pressing plate transmission shaft 41 drives the pressing plate lifting module 10, and the quilting transmission shaft 42 drives the quilting lifting module 20. The pressing plate lifting module 10 presses the product (such as cloth). The quilting needles 21 on the quilting lifting module 20 sew the product. After one sewing is completed, the pressing plate lifting module 10 and the quilting lifting module 20 rise and reset. The thread picking transmission shaft 43 drives the thread picking cam 31. Under the control of the thread picking swing rod 33, the thread picking cam 31 drives the thread picking member 32 to make irregular up and down swings. The thread picking member 32 drives the thread picking module 30 to swing up and down. The thread picking module 30 picks up the quilting thread passing through the thread picking module, and the quilting thread on the quilting needles 21 is tightened. Then, under the drive of the cloth conveying mechanism, the product moves forward. Under the drive of the pressing plate transmission shaft 41 and the quilting transmission shaft 42, the pressing plate lifting module 10 presses the product, and the quilting needles 21 descend to sew the product. After the pressing plate lifting module 10 and the quilting lifting module 20 rise and reset, under the drive of the thread picking transmission shaft 43, the thread picking module 30 picks up the quilting thread. Repeating like this, as the product moves forward, the quilting needles continuously sew the product.

[0028] Regarding the pressing plate lifting module 10 and the quilting lifting module 20. The pressing plate transmission shaft 41 is connected to the main shaft through the first cam link mechanism 51, and the quilting transmission shaft 42 is connected to the main shaft through the second cam link mechanism 52. Driven by the main shaft, the first cam link mechanism 51 drives the pressing plate transmission shaft 41 to swing, and the second cam link mechanism 52 drives the quilting transmission shaft 42 to swing. For how the swinging pressing plate transmission shaft 41 drives the pressing plate lifting module 10 to lift, reference can be made to paragraphs

[0017] and

[0052] of the specification of the patent document with the authorization publication number CN 207276898 U. For how the swinging quilting transmission shaft 42 drives the quilting lifting module 20 to lift, reference can be made to paragraphs

[0016] and

[0051] of the specification of the patent document with the authorization publication number CN 207276898 U.

[0029] Regarding the thread take-up module 30. Combining Figures 5 to 7 , the thread take-up member 32 is a V-shaped member with an obtuse inner angle. The first rotating portion 321 and the second rotating portion 322 are provided on one arm of the V-shaped member. The second rotating portion is located above the first rotating portion, and the other arm of the V-shaped member is connected to the thread take-up module 30. The thread take-up cam 31 of the present invention, under the control of the thread take-up swing rod 33, can drive the connection end of the thread take-up member 32 and the thread take-up module 30 to slowly descend, but can drive the connection end of the thread take-up member 32 and the thread take-up module 30 to quickly ascend. The thread take-up module 30 slowly descends, forming a speed difference with the rapid descent of the quilting needle 21. The thread take-up module 30 pulls the quilting thread, forcing the quilting needle 21 to pull out the quilting thread from the quilting thread roll located above the quilting machine head and sew the quilting thread on the product. After the quilting needle 21 sews the quilting thread on the product, the quilting needle rises and resets with the quilting lifting module 20, and the thread take-up module 30 quickly ascends, which can quickly tighten the quilting thread on the quilting needle 21, facilitating the continuous and efficient operation of sewing and avoiding the loosening of the quilting thread.

[0030] Regarding the thread take-up module 30. The number of the transmission shaft brackets 44 is several. The left and right sides of any one of the transmission shaft brackets are provided with thread take-up cams 31. The thread take-up cams are installed at both ends of the thread take-up cam shaft, and the thread take-up cam shaft is installed on the transmission shaft bracket 44. The thread take-up transmission shaft 43 drives the thread take-up cam 31 by driving the thread take-up cam shaft. The horizontally arranged pressing plate transmission shaft 41, the quilting transmission shaft 42, and the thread take-up transmission shaft 43 are supported on several transmission shaft brackets 44.

[0031] Regarding the thread take-up module 30. The thread take-up drive shaft 43 is connected to the main shaft through the second synchronous belt. Driven by the main shaft, the thread take-up drive shaft 43 rotates continuously. The thread take-up drive shaft 43 drives the thread take-up camshaft to rotate continuously through the first synchronous belt 35. The main shaft drives the pressure plate drive shaft 41 to swing through the first cam link mechanism 51, and the pressure plate drive shaft drives the pressure plate lifting module 10 to lift and lower. The main shaft drives the quilting drive shaft 42 to swing through the second cam link 52, and the quilting drive shaft drives the quilting lifting module 20 to lift and lower. The main shaft drives the thread take-up drive shaft 43 to rotate continuously through the second synchronous belt. The thread take-up drive shaft 43 drives the thread take-up camshaft through the first synchronous belt 35, and the thread take-up cam 31 on the thread take-up camshaft rotates. The thread take-up cam drives the thread take-up member 32. Under the control of the thread take-up swing rod 33, the thread take-up member 32 swings, driving the thread take-up module 30 to swing up and down. During the quilting process, the pressure plate lifting module 10 first presses down on the product, the thread take-up module 30 connected to the quilting thread slowly swings downward, the quilting needle 21 on the quilting lifting module 20 descends, pulling the quilting thread passing through the quilting needle 21 downward. The quilting thread is pulled out of the thread reel, and the thread reel is located above the quilting head. The quilting needle 21 sews the product. When the pressure plate lifting module 10 and the quilting lifting module 20 rise and reset, the thread take-up module 30 quickly swings upward, quickly lifting the quilting thread passing through the quilting needle 21, and the quilting thread is tightened. After that, the pressure plate lifting module 10 presses down on the product, the thread take-up module 30 slowly swings downward, the quilting needle 21 descends for sewing, the quilting needle 21 rises and resets, and the thread take-up module 30 quickly swings upward and tightens the quilting thread. In this way, the quilting head continuously sews the product moving forward.

[0032] A number of thread passing holes 340 are provided on the thread take-up module 30. The thread passing holes are ceramic holes, which are opened on a ceramic part, and the ceramic part is installed on the thread take-up module 30. Since the ceramic surface is smooth and has good hardness, the quilting thread passing through the ceramic holes is not easily worn by itself, nor will it wear the thread passing holes, which is conducive to the smooth progress of the work. A thread passing frame 36 is provided below the thread take-up module 30. The thread passing frame 36 is located between the thread take-up module 30 and the quilting needle 21. The thread passing frame is provided with thread passing holes corresponding one by one up and down to the thread passing holes on the thread take-up module 30 to guide the quilting thread. The thread passing holes on the thread passing frame 36 also adopt ceramic holes.

[0033] The above content is only the preferred embodiment of the present invention. For those of ordinary skill in the art, according to the idea of the present invention, there will be changes in the specific implementation manner and application scope. The content of this specification should not be construed as a limitation to the present invention.

Claims

1. Horizontal quilting head, comprising a pressing plate lifting module (10) for pressing the product, a quilting lifting module (20) provided with a plurality of quilting needles, a thread picking module (30) for connecting the quilting thread, and a power system for driving the pressing plate lifting module, the quilting lifting module and the thread picking module to act. The power system includes a pressing plate transmission shaft (41) connected to the pressing plate lifting module, a quilting transmission shaft (42) connected to the quilting lifting module, and a thread picking transmission shaft (43) for driving the thread picking module. The thread picking transmission shaft is installed on a transmission shaft bracket (44), and is characterized in that: The thread take-up drive shaft drives a thread take-up cam (31) arranged on a drive shaft bracket. The thread take-up cam is connected to a first rotating part (321) of a thread take-up member (32). A second rotating part (322) of the thread take-up member is connected to one end of a thread take-up swing rod (33). The other end of the thread take-up swing rod is mounted on a swing rod shaft (330), and the swing rod shaft is mounted on the drive shaft bracket (44). The thread take-up member (32) is connected to a thread take-up module (30).

2. The horizontal quilting machine head according to claim 1, wherein: The thread take-up member (32) is a V-shaped member with an obtuse inner angle. The first rotating part (321) and the second rotating part (322) are arranged on one arm of the V-shaped member. The second rotating part is located above the first rotating part. The other arm of the V-shaped member is connected to the thread take-up module (30).

3. The horizontal quilting machine head according to claim 1, characterized in that: The number of drive shaft brackets (44) is several. Thread take-up cams (31) are provided on the left and right sides of any drive shaft bracket. The thread take-up cams are mounted at both ends of a thread take-up cam shaft, and the thread take-up cam shaft is mounted on the drive shaft bracket (44). The thread take-up drive shaft (43) drives the thread take-up cams (31) by driving the thread take-up cam shaft.

4. The horizontal quilting head according to claim 3, wherein: The thread take-up drive shaft (43) drives the thread take-up cam shaft through a first synchronous belt (35).

5. The horizontal quilting head according to claim 1, characterized in that: A number of thread passing holes (340) are provided on the thread take-up module (30), and the thread passing holes are ceramic holes.

6. The horizontal quilting machine head according to claim 1, characterized in that: The pressing plate drive shaft (41) is connected to the main shaft through a first cam link mechanism (51). The quilting drive shaft (42) is connected to the main shaft through a second cam link mechanism (52). The thread take-up drive shaft (43) is connected to the main shaft through a second synchronous belt.

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