Punching device for sinker processing

Abstract

The utility model relates to a punching device for sinker processing, which is characterized by comprising a workbench, a punching lower die, a punching upper die, an upper support plate, a support seat and a punching hydraulic cylinder, the punching lower die is fixed at the top of the workbench through a plurality of support columns arranged at the bottom; the upper supporting plate is located over the lower punching die, the upper supporting plate is horizontally arranged and fixedly connected with the workbench through a stand column, the upper punching die is connected with a punching hydraulic cylinder installed on the upper supporting plate, and the upper punching die is driven by the punching hydraulic cylinder to cover the lower punching die. A plurality of punching protruding parts matched with sinkers in shape are arranged at the bottom of the punching upper die. The design has the advantages of being simple in structure, easy to manufacture and convenient to use.

Description

Technical Field

[0001] The utility model relates to the technical field of sinker processing for flat knitting machines, and particularly relates to a punching device for sinker processing. Background Technique

[0002] At present, sinkers have been widely used on flat knitting machines at home and abroad. The sinkers are arranged between two knitting needles and are located in the sinker grooves at the toothed part of the needle bed. The sinkers on the two needle beds are arranged opposite to each other, and the sinker heels are controlled by cams to make the sinkers swing back and forth. When the knitting needles rise to draw back the loops, the sinkers in the front and rear needle beds close. When the knitting needles descend to bend the yarn into loops, the front and rear sinkers open. It can well control the old loops and new yarns on each knitting needle and help the knitting needles smoothly complete operations such as pushing the needles, drawing back the loops, and turning the needles.

[0003] Existing sinkers often adopt advanced machine tools for precision machining to ensure that their dimensions and shapes meet the design requirements. However, this method has relatively low production efficiency and cannot meet the demand. Therefore, it is particularly important to design a punching device for sinker processing to improve the processing efficiency. Summary of the Invention

[0004] In order to solve the above problems, the utility model designs a punching device for sinker processing. Through the cooperation of the through grooves in the recess of the punching lower die and the punching protrusions at the bottom of the punching upper die, the sinker can be directly punched into shape, greatly improving the processing efficiency.

[0005] To solve the above technical problems, the utility model provides a punching device for sinker processing, which is characterized in that: it includes a workbench, a punching lower die, a punching upper die, an upper support plate, a support seat, and a punching hydraulic cylinder. The punching lower die is fixed on the top of the workbench through a plurality of support columns arranged at the bottom. The upper support plate is located directly above the punching lower die. The upper support plate is horizontally arranged and is fixedly connected to the workbench through columns. The punching upper die is connected to the punching hydraulic cylinder installed on the upper support plate. The punching upper die is driven by the punching hydraulic cylinder to cover the punching lower die. The bottom of the punching upper die is provided with a plurality of punching protrusions matching the shape of the sinker. The top of the punching lower die is provided with a recess for the punching upper die to extend into. The left and right ends of the recess are open. Through grooves matching the plurality of punching protrusions are arranged on the bottom surface of the recess. A support seat is arranged on each of the left and right sides of the workbench of the punching lower die. A conveying mechanism for conveying the punching blank is arranged on the support seat. The punching blank passes through the punching lower die along the recess under the action of the conveying mechanism.

[0006] Furthermore: The conveying mechanism includes a pressing plate, a lower support plate, a lower piezoelectric cylinder, a lever mechanism, a guiding roller, a conveying roller, a conveying roller mounting bracket, a guiding sleeve, a guiding column and a spring. A second groove is formed at the top of the support base. Two guiding rollers are horizontally installed in the second groove. The top of the support base on one side of the second groove is connected to the horizontally arranged lower support plate through a connecting rod. The pressing plate is located directly above the top of the support base on the other side of the second groove. The pressing plate is connected to the lower piezoelectric cylinder installed on the lower support plate. The output shaft end of the lower piezoelectric cylinder is connected to the guiding sleeve through a lever mechanism. The two ends of the lever mechanism are respectively movably connected to the output shaft end of the lower piezoelectric cylinder and the guiding sleeve. The guiding sleeve is connected to the bottom of the lower support plate through a spring. A guiding column is vertically fixed to the bottom of the lower support plate directly above the guiding sleeve. The lower end of the guiding column extends into the guiding sleeve. The guiding sleeve is slidably connected to the outer wall of the guiding column. The spring is wound around the outer side of the guiding column above the guiding sleeve. The conveying roller is installed inside the lower end of the conveying roller mounting bracket. The lower end of the conveying roller extends out from the bottom of the conveying roller mounting bracket. The lower end of the guiding sleeve is fixedly connected to the top of the conveying roller mounting bracket. The top of the support base directly below the pressing plate is flush with the upper ends of the guiding rollers and the bottom surface inside the groove.

[0007] Still further: The lever mechanism includes two side plates, a connecting column, a first telescopic rod and a second telescopic rod. The two side plates are oppositely arranged and fixed to the bottom of the lower support plate between the lower piezoelectric cylinder and the guiding sleeve. The connecting column is rotatably connected between the two side plates through a rotating shaft. The rod diameters of the first telescopic rod and the second telescopic rod are the same. Guide holes for the first telescopic rod and the second telescopic rod to extend into are respectively formed at both ends of the connecting column. The first telescopic rod and the second telescopic rod are respectively movably connected in the guide holes at both ends of the connecting column. A connecting sleeve is sleeved and fixed on the output shaft end of the lower piezoelectric cylinder. One end of the first telescopic rod extending into the guide hole is connected to the connecting column through a second spring. The end of the first telescopic rod away from the connecting column is movably connected to the connecting sleeve. One end of the second telescopic rod extending into the guide hole is connected to the connecting column through a third spring. The end of the second telescopic rod away from the connecting column is movably connected to the guiding sleeve.

[0008] Still further: A guide rod is vertically fixed to the top of the punching upper die. A guiding through hole matching the guide rod is formed at the position of the upper support plate corresponding to the guide rod. The upper end of the guide rod passes through the upper support plate along the guiding through hole and is slidably connected thereto.

[0009] Furthermore: A blowing connection pipe joint is respectively arranged at the position of the top of the punching upper die corresponding to several punching convex portions. A blowing channel is formed in the punching upper die between the blowing connection pipe joint and the punching convex portion directly below it. Blowing holes communicating with the blowing channel are also formed at the positions of the punching convex portions corresponding to the blowing channel.

[0010] After adopting the above structure, the beneficial effects of the present utility model are as follows:

[0011] 1. The present utility model can directly stamp and form the sinker through the cooperation of the through groove in the recess of the lower stamping die and the stamping protrusion at the bottom of the upper stamping die, greatly improving the processing efficiency.

[0012] 2. The present utility model can blow off the sinker stamped and formed in the through groove by blowing air, without manual extraction, which plays a role in increasing the practical performance.

[0013] 3. This design has the advantages of simple structure, easy manufacturing and convenient use. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] The following further describes the present utility model in detail with reference to the drawings and specific embodiments.

[0015] Figure 1 It is a schematic structural diagram of the present utility model.

[0016] Figure 2 is Figure 1 the enlarged view of A in SPECIFIC EMBODIMENTS

[0017] Such as Figure 1 and Figure 2A stamping device for processing sinker blades as shown, comprising a workbench 1, a lower stamping die 2, an upper stamping die 6, an upper support plate 4, a support base 9 and a stamping hydraulic cylinder 7. The lower stamping die is fixed to the top of the workbench through a plurality of support columns 3 provided at the bottom. The upper support plate is located directly above the lower stamping die. The upper support plate is horizontally arranged and fixedly connected to the workbench through columns 5. The upper stamping die is connected to the stamping hydraulic cylinder installed on the upper support plate. The upper stamping die is driven by the stamping hydraulic cylinder to cover the lower stamping die. A plurality of stamping protrusions matching the shape of the sinker blades are provided at the bottom of the upper stamping die. A groove for the upper stamping die to extend into is formed at the top of the lower stamping die. The left and right ends of the groove are open. Through grooves matching the positions of the plurality of stamping protrusions are formed on the bottom surface inside the groove. A support base is provided on each of the left and right sides of the workbench of the lower stamping die. A conveying mechanism for conveying the stamping blank is provided on the support base. The stamping blank passes through the lower stamping die along the groove under the action of the conveying mechanism. When the stamping blank is transported to directly below the upper stamping die along with the conveying mechanism, the stamping hydraulic cylinder is started to stamp and form the sinker blades by means of the stamping protrusions. The utility model can directly stamp and form the sinker blades through the cooperation of the through grooves in the groove of the lower stamping die and the stamping protrusions at the bottom of the upper stamping die, greatly improving the processing efficiency; and a plurality of stamping protrusions are provided at the bottom of the upper stamping die, and several sinker blades can be stamped out at one time through this structure, increasing the practical performance.

[0018] As Figure 2The conveying mechanism shown includes a pressing plate 19, a lower support plate 14, a lower piezoelectric cylinder 20, a lever mechanism, a guiding roller 10, a conveying roller, a conveying roller mounting bracket 11, a guiding sleeve 12, a guiding column, and a spring 13. A second groove is formed at the top of the support seat. Two guiding rollers are horizontally installed in the second groove. The top of the support seat on one side of the second groove is connected to the horizontally arranged lower support plate through a connecting rod. The pressing plate is located directly above the top of the support seat on the other side of the second groove. The pressing plate is connected to the lower piezoelectric cylinder installed on the lower support plate. The output shaft end of the lower piezoelectric cylinder is connected to the guiding sleeve through a lever mechanism. The two ends of the lever mechanism are respectively movably connected to the output shaft end of the lower piezoelectric cylinder and the guiding sleeve. The guiding sleeve is connected to the bottom of the lower support plate through a spring. A guiding column is vertically fixed to the bottom of the lower support plate directly above the guiding sleeve. The lower end of the guiding column extends into the guiding sleeve. The guiding sleeve is slidably connected to the outer wall of the guiding column. The spring is wound around the outer side of the guiding column above the guiding sleeve. The conveying roller is installed inside the lower end of the conveying roller mounting bracket, and the lower end of the conveying roller extends out from the bottom of the conveying roller mounting bracket. The lower end of the guiding sleeve is fixedly connected to the top of the conveying roller mounting bracket. The top of the support seat directly below the pressing plate is flush with the upper ends of the guiding rollers and the bottom surface inside the groove. The punching blank is conveyed under the cooperation of the guiding rollers and the conveying roller. When punching and forming is required, the lower piezoelectric cylinder is started to clamp the punching blank by the cooperation of the pressing plate and the top of the support seat. At this time, the conveying roller will disengage from the punching blank under the action of the lever mechanism.

[0019] As Figure 2 The lever mechanism shown includes two side plates 15, a connecting column 16, a first telescopic rod 17, and a second telescopic rod 18. The two side plates are arranged oppositely and fixed to the bottom of the lower support plate between the lower piezoelectric cylinder and the guiding sleeve. The connecting column is rotatably connected between the two side plates through a rotating shaft. The rod diameters of the first telescopic rod and the second telescopic rod are the same. Guide holes for the first telescopic rod and the second telescopic rod to extend into are respectively formed at both ends of the connecting column. The first telescopic rod and the second telescopic rod are respectively movably connected to the guide holes at both ends of the connecting column. A connecting sleeve 21 is sleeved and fixed on the output shaft end of the lower piezoelectric cylinder. One end of the first telescopic rod extending into the guide hole is connected to the connecting column through a second spring. The end of the first telescopic rod away from the connecting column is movably connected to the connecting sleeve. One end of the second telescopic rod extending into the guide hole is connected to the connecting column through a third spring. The end of the second telescopic rod away from the connecting column is movably connected to the guiding sleeve.

[0020] As Figure 1 A guide rod 8 is vertically fixed to the top of the punching upper die shown. A guiding through hole matching the guide rod is formed at the position of the upper support plate relative to the guide rod. The upper end of the guide rod passes through the upper support plate along the guiding through hole and is slidably connected to it.

[0021] As Figure 1A blowing air connection pipe joint 22 is provided at the position of the top of the punching upper die relative to a plurality of punching convex parts. A blowing air channel is formed in the punching upper die between the blowing air connection pipe joint and the punching convex part directly below it. A blowing air hole communicating with the blowing air channel is also formed in the punching convex part at the position relative to the blowing air channel. The utility model can blow off the settling pieces formed by stamping and stuck in the through groove by blowing air, without manual extraction, thus playing a role in increasing the practical performance.

[0022] The above is only the preferred embodiment of the utility model, and the protection scope of the utility model is not limited to the above embodiments. All technical solutions within the idea of the utility model belong to the protection scope of the utility model. It should be pointed out that for those of ordinary skill in the art in this technical field, several improvements and modifications made without departing from the principle of the utility model should be regarded as within the protection scope of the utility model.

Claims

1. A punching device for sinker processing, characterized in that: The invention comprises a workbench (1), a punching lower mold (2), a punching upper mold (6), an upper support plate (4), a support seat (9) and a punching hydraulic cylinder (7), wherein the punching lower mold is fixed to the top of the workbench through a plurality of support columns (3) arranged at the bottom, the upper support plate is located directly above the punching lower mold, the upper support plate is arranged horizontally and is fixedly connected to the workbench through a column (5), the punching upper mold is connected to the punching hydraulic cylinder installed on the upper support plate, and the punching upper mold is driven by the punching hydraulic cylinder to cover the punching lower mold. On the mold, a plurality of punch-shaped protrusions matching the shape of the sinker are arranged at the bottom of the punch-shaped upper mold, a groove for the punch-shaped upper mold to extend into is provided at the top of the punch-shaped lower mold, the left and right ends of the groove are open, and matching through grooves are provided on the bottom surface of the groove relative to the positions of the plurality of punch-shaped protrusions. A support seat is provided on each of the workbenches on the left and right sides of the punch-shaped lower mold, and a conveying mechanism for conveying the punch-shaped sheet material is provided on the support seat, and the punch-shaped sheet material passes through the punch-shaped lower mold along the groove under the action of the conveying mechanism.

2. A sinker forming device according to claim 1, characterized in that: The conveying mechanism comprises a pressing plate (19), a lower support plate (14), a lower piezoelectric cylinder (20), a lever mechanism, a guide roller (10), a conveying roller, a conveying roller mounting frame (11), a guide sleeve (12), a guide column and a spring (13). A second groove is provided on the top of the support seat, and two guide rollers are horizontally installed in the second groove. The top of the support seat on one side of the second groove is connected to the horizontally arranged lower support plate through a connecting rod. The pressing plate is located directly above the top of the support seat on the other side of the second groove. The pressing plate is connected to the lower piezoelectric cylinder installed on the lower support plate. The output shaft end of the lower piezoelectric cylinder is connected to the guide sleeve through a lever mechanism. The lever The two ends of the mechanism are respectively movably connected with the output shaft end of the lower piezoelectric cylinder and the guide sleeve, the guide sleeve is connected to the bottom of the lower support plate through a spring, a guide column is vertically fixed to the bottom of the lower support plate directly above the guide sleeve, the lower end of the guide column extends into the guide sleeve, the guide sleeve is slidably connected to the outer wall of the guide column up and down, the spring surrounds the outer side of the guide column above the guide sleeve, the conveying roller is installed in the lower end of the conveying roller mounting frame, the lower end of the conveying roller extends from the bottom of the conveying roller mounting frame, the lower end of the guide sleeve is fixedly connected to the top of the conveying roller mounting frame, and the top of the support seat directly below the pressure plate is flush with the upper end of the guide roller and the bottom surface in the groove.

3. A sinker forming device according to claim 2, characterized in that: The lever mechanism comprises two side plates (15), a connecting column (16), a first telescopic rod (17) and a second telescopic rod (18), the two side plates are arranged opposite to each other and fixed at the bottom of the lower support plate between the lower piezoelectric cylinder and the guide sleeve, the connecting column is rotatably connected between the two side plates through a rotating shaft, the first telescopic rod and the second telescopic rod have the same rod diameter, both ends of the connecting column are respectively provided with guide holes for the first telescopic rod and the second telescopic rod to extend into, the first telescopic rod and the second telescopic rod are respectively movably connected in the guide holes at both ends of the connecting column, a connecting sleeve (21) is fixedly sleeved on the shaft end of the lower piezoelectric cylinder, the end of the first telescopic rod extending into the guide hole is connected to the connecting column through a second spring, the end of the first telescopic rod away from the connecting column is movably connected to the connecting sleeve, the end of the second telescopic rod extending into the guide hole is connected to the connecting column through a third spring, and the end of the second telescopic rod away from the connecting column is movably connected to the guide sleeve.

4. A sinker forming device according to claim 1, characterized in that: A guide rod (8) is vertically fixed to the top of the punch-shaped upper mold, and a guide through hole matching the guide rod is opened on the upper support plate at a position relative to the guide rod. The upper end of the guide rod passes through the upper support plate along the guide through hole and is slidably connected to the upper support plate.

5. A sinker forming device according to claim 1, characterized in that: A blowing connection pipe joint (22) is arranged at the top of the punch-shaped upper mold relative to the positions of the plurality of punch-shaped protrusions, and a blowing channel is provided in the punch-shaped upper mold between the blowing connection pipe joint and the punch-shaped protrusion directly below it, and a blowing hole connected to the blowing channel is also provided on the punch-shaped protrusion relative to the position of the blowing channel.

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