Automatic wire shearing machine

Abstract

The utility model relates to the technical field of trimming equipment, in particular to an automatic trimming machine which comprises a mounting frame, a trimming mechanism, an upper mounting roller, a lower mounting roller and a roller driving motor, the upper mounting roller and the lower mounting roller are rotatably arranged on the mounting frame, and the axis of the upper mounting roller and the axis of the lower mounting roller are parallel to each other. The thread trimming mechanism comprises a thread trimming blade, the thread trimming blade penetrates between an upper mounting roller and a lower mounting roller, a roller driving motor is arranged on the mounting frame and is in transmission connection with the lower mounting roller, and the upper mounting roller and the lower mounting roller are in reverse transmission connection; the height adjusting mechanism comprises a height adjusting motor, a height synchronous rod and a lifting assembly, thread ends, higher than the set height, on cloth are cut through the thread cutting blade, the cloth is flatly laid on the feeding table, wrinkles cannot be generated, and therefore the finished product rate of the cloth is increased; during use, the roller can be mounted under the unfolding of the current working procedure, so that the safety and stability of equipment are improved.

Description

Technical Field

[0001] The utility model relates to the technical field of wire cutting equipment, in particular to an automatic wire cutting machine. Background Art

[0002] An embroidery machine is a machine used to embroider patterns on fabrics. After the embroidery machine finishes sewing the patterns, the thread ends on the fabric will be very messy and the heights of the thread ends are uneven, thus affecting the aesthetic degree of the fabric. Therefore, it is necessary to trim the thread ends on the processed fabric. Thus, an automatic wire cutting machine is needed to trim the solitary thread ends.

[0003] The existing automatic wire cutting machines in the prior art still have the following defects: First, the knife belt in the prior art is below the fabric, and the embroidered area in the fabric is higher than the unembroidered fabric. Affected by gravity, the fabric falls downward and contacts the knife belt, thus cutting the fabric. Second, the height of the roller used to transfer the fabric in the prior art cannot be adjusted. Therefore, when the staff imports the fabric, it is easy to cause hand injuries. Summary of the Utility Model

[0004] To solve the problem that the thread ends on the above-mentioned fabric need to be trimmed, the utility model provides an automatic wire cutting machine, and the specific technical solution is as follows:

[0005] An automatic wire cutting machine includes a mounting frame, a wire cutting mechanism, an upper mounting roller, a lower mounting roller, and a roller driving motor. The upper mounting roller and the lower mounting roller are rotatably arranged on the mounting frame, and the axes of the upper mounting roller and the lower mounting roller are arranged parallel to each other. The wire cutting mechanism includes a wire cutting blade, and the wire cutting blade passes between the upper mounting roller and the lower mounting roller. The roller driving motor is arranged on the mounting frame and is in transmission connection with the lower mounting roller, and the upper mounting roller and the lower mounting roller are in reverse transmission connection;

[0006] It further includes a height adjusting mechanism. The height adjusting mechanism includes a height adjusting motor, a height synchronization rod, and a lifting component. The height synchronization rod is rotatably arranged on the mounting frame. The height adjusting motor is arranged on the mounting frame and is in transmission connection with the height synchronization rod. There are two lifting components, and the two lifting components are symmetrically arranged on the mounting frame. The height synchronization rod is in transmission connection with the two lifting components. When the height synchronization rod rotates, the two lifting components perform height adjustment. The two ends of the lower mounting roller are rotatably arranged on the two lifting components.

[0007] Further, the lifting assembly includes a lifting slider, a lifting lead screw, and a limiting member. The limiting member is fixedly arranged on the mounting frame. The lifting lead screw is rotatably arranged on the limiting member. The lifting slider is slidably arranged on the mounting frame. A lead screw groove is arranged on the lower end surface of the lifting slider. The lifting lead screw fits with the lead screw groove on the lower end surface of the lifting slider. A first bevel gear is fixedly installed on the height synchronization rod. A second bevel gear is arranged at the lower end of the lifting lead screw. The first bevel gear and the second bevel gear are meshed. The rotation of the lifting lead screw drives the lifting slider to lift and lower. Both ends of the lower mounting roller are rotatably arranged on the two lifting sliders.

[0008] Further, a driving gear is arranged at the side end of the lower mounting roller, and a driven gear is arranged at the side end of the upper mounting roller. A first transmission gear and a second transmission gear are arranged on the mounting frame. The driving gear is in clearance fit with the first transmission gear. The first transmission gear and the second transmission gear are meshed. The second transmission gear and the driven gear are meshed.

[0009] Further, a first universal joint is arranged on the lower mounting roller. A spline shaft is drivingly connected to the first universal joint. A second universal joint is arranged at the output end of the roller driving motor. A spline sleeve is drivingly connected to the second universal joint. The spline shaft is inserted into the spline sleeve.

[0010] Further, the wire cutting mechanism further includes a first blade transmission wheel, a second blade transmission wheel, and a transmission wheel driving motor. The first blade transmission wheel and the second blade transmission wheel are rotatably arranged on the mounting frame. The wire cutting blade is sleeved on the first blade transmission wheel and the second blade transmission wheel. The transmission wheel driving motor is drivingly connected to the first blade transmission wheel. The transmission wheel driving motor drives the first blade transmission wheel to make the wire cutting blade run on the first blade transmission wheel and the second blade transmission wheel.

[0011] Further, a tensioning mechanism is further included. The tensioning mechanism includes a tensioning lead screw, a tensioning sliding member, and a tensioning handle. The tensioning sliding member is slidably arranged on the mounting frame. A lead screw sleeve is arranged on the tensioning sliding member. The tensioning lead screw is rotatably arranged on the mounting frame. The tensioning lead screw and the lead screw sleeve fit with each other. The tensioning handle is fixedly installed on one side of the tensioning lead screw. Rotating the tensioning lead screw makes the tensioning sliding member move horizontally on the mounting frame.

[0012] Further, the width of the lower mounting roller is smaller than the width of the upper mounting roller.

[0013] Compared with the prior art, the utility model has the following beneficial effects:

[0014] First: In this solution, the driving wheel drives the motor to drive the first blade driving wheel to rotate. The first blade driving wheel drives the thread cutting blade to operate. The thread cutting blade transmits the power to the second blade driving wheel. At this time, the thread cutting blade operates at high speed under the cooperation of the first blade driving wheel and the second blade driving wheel. The fabric is inserted between the upper mounting roller and the lower mounting roller, and the thread cutting blade cuts the thread heads on the fabric that are higher than the set height. The roller driving motor drives the lower mounting roller to rotate. The rotation of the lower mounting roller drives the driving gear to rotate. The driving gear drives the first transmission gear to rotate. Through the first transmission gear, the second transmission gear is driven. The second transmission gear drives the driven gear to rotate. Through the driven gear, the upper mounting roller is driven to rotate. The lower mounting roller and the upper mounting roller rotate synchronously and in opposite directions to convey the fabric, so as to continuously cut the fabric.

[0015] Second: When it is necessary to control the cutting thickness of the fabric, the height of the lower mounting roller is controlled by the height adjustment mechanism. The height adjustment motor is started. The height adjustment motor drives the height synchronization rod to rotate. The first bevel gear on the height synchronization rod drives the second bevel gear to rotate. The rotation of the second bevel gear drives the lifting lead screw to rotate. Through the cooperation of the lifting lead screw and the lead screw groove, the lifting slider is lifted or lowered. The lifting or lowering of the lifting slider drives the lower mounting roller to adjust its height.

[0016] Third, the thread cutting blade in this solution is designed above the fabric, so that the embroidery is upward. The thread cutting blade cuts the embroidered part. The part of the fabric without embroidery is flat on the feeding table, so no wrinkles will be generated, thus ensuring the integrity of the fabric.

[0017] Fourth, the lower mounting roller in this solution can be adjusted in height. When in use, it can open and approach the lower mounting roller according to the step state, so as to improve the operation safety of the staff. Description of the Drawings

[0018] Figure 1 is the overall structural schematic diagram of this application;

[0019] Figure 2 is Figure 1 the enlarged structural schematic diagram at A in

[0020] Figure 3 is Figure 1 the enlarged structural schematic diagram at B in

[0021] Figure 4 is the schematic diagram of the setting of the driving gear, driven gear, first transmission gear and second transmission gear;

[0022] Figure 5 is the structural schematic diagram of the tensioning mechanism in this application;

[0023] Figure 6 This is a schematic diagram of the mating structure of the first universal joint and the second universal joint in this application.

[0024] Reference numerals: mounting frame 1, upper mounting roller 2, driven gear 201, lower mounting roller 3, driving gear 301, first universal joint 302, spline shaft 303, roller drive motor 4, second universal joint 401, spline sleeve 402, wire cutting blade 5, height adjustment motor 6, height synchronization rod 7, first bevel gear 701, lifting assembly 8, lifting slider 801, lifting lead screw 802, limiting member 803, second bevel gear 804, first transmission gear 901, second transmission gear 902, first blade transmission wheel 1001, second blade transmission wheel 1002, transmission wheel drive motor 1003, tensioning lead screw 1101, tensioning sliding member 1102, tensioning handle 1103. Detailed implementation manners

[0025] Next, the technical solutions of the present invention will be clearly and completely described in conjunction with the accompanying drawings. Obviously, the described embodiments are some, but not all, of the embodiments of the present invention.

[0026] Generally, the components of the embodiments of the present invention described and shown in the drawings here can be arranged and designed in various different configurations. Therefore, the following detailed description of the embodiments of the present invention provided in the drawings is not intended to limit the scope of the claimed invention, but merely represents the selected embodiments of the present invention.

[0027] All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts fall within the scope of protection of the present invention.

[0028] In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present invention and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be construed as a limitation of the present invention. In addition, the terms "first", "second", "third" are only used for descriptive purposes and cannot be construed as indicating or implying relative importance.

[0029] In the description of the present invention, it should be noted that, unless otherwise clearly specified and defined, the terms "installation", "connection", and "coupling" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, and it can be the communication inside two components. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific situations.

[0030] The present utility model will be further described in conjunction with the accompanying drawings.

[0031] As Figures 1 to 6 shown, an automatic wire cutting machine includes an installation frame 1, a wire cutting mechanism, an upper installation roller 2, a lower installation roller 3, a roller drive motor 4, and a height adjustment mechanism. The upper installation roller 2 and the lower installation roller 3 are rotatably arranged on the installation frame 1, and the axes of the upper installation roller 2 and the lower installation roller 3 are arranged parallel to each other. The wire cutting mechanism includes a wire cutting blade 5, and the wire cutting blade 5 passes between the upper installation roller 2 and the lower installation roller 3. The roller drive motor 4 is arranged on the installation frame 1 and is in transmission connection with the lower installation roller 3. The upper installation roller 2 and the lower installation roller 3 are in reverse transmission connection, and the height adjustment mechanism can adjust the installation height of the lower installation roller 3.

[0032] In an embodiment of the present application, the height adjustment mechanism includes a height adjustment motor 6, a height synchronization rod 7, and a lifting assembly 8. The height synchronization rod 7 is rotatably arranged on the installation frame 1. The height adjustment motor 6 is arranged on the installation frame 1 and is in transmission connection with the height synchronization rod 7. Two lifting assemblies 8 are provided, and the two lifting assemblies 8 are symmetrically arranged on the installation frame 1. The height synchronization rod 7 is in transmission connection with the two lifting assemblies 8. The rotation of the height synchronization rod 7 causes the two lifting assemblies 8 to adjust their heights. The two ends of the lower installation roller 3 are rotatably arranged on the two lifting assemblies 8.

[0033] In an embodiment of the present application, the lifting assembly 8 includes a lifting slider 801, a lifting lead screw 802, and a limiting member 803. The limiting member 803 is fixedly arranged on the installation frame 1. The lifting lead screw 802 is rotatably arranged on the limiting member 803. The lifting slider 801 is slidably arranged on the installation frame 1. A lead screw groove is provided on the lower end surface of the lifting slider 801. The lifting lead screw 802 fits with the lead screw groove on the lower end surface of the lifting slider 801. A first bevel gear 701 is fixedly installed on the height synchronization rod 7, and a second bevel gear 804 is provided at the lower end of the lifting lead screw 802. The first bevel gear 701 and the second bevel gear 804 are meshed. The rotation of the lifting lead screw 802 drives the lifting slider 801 to lift and lower. The two ends of the lower installation roller 3 are rotatably arranged on the two lifting sliders 801.

[0034] Optionally, a driving gear 301 is provided at the side end of the lower mounting roller 3, and a driven gear 201 is provided at the side end of the upper mounting roller 2. A first transmission gear 901 and a second transmission gear 902 are provided on the mounting frame 1. The driving gear 301 is in clearance fit with the first transmission gear 901. The first transmission gear 901 and the second transmission gear 902 are meshed, and the second transmission gear 902 and the driven gear 201 are meshed.

[0035] Preferably, a first universal joint 302 is provided on the lower mounting roller 3. A spline shaft 303 is drivingly connected to the first universal joint 302. A second universal joint 401 is provided at the output end of the roller driving motor 4. A spline sleeve 402 is drivingly connected to the second universal joint 401. The spline shaft 303 is inserted into the spline sleeve 402. The cooperation of the provided spline shaft 303 and the spline sleeve 402 can satisfy the power transmission between the first universal joint 302 and the second universal joint 401, and can adaptively adjust the gap between the first universal joint 302 and the second universal joint 401, thereby improving the stability when the lower mounting roller 3 moves up and down.

[0036] Preferably, the wire cutting mechanism further includes a first blade transmission wheel 1001, a second blade transmission wheel 1002, and a transmission wheel driving motor 1003. The first blade transmission wheel 1001 and the second blade transmission wheel 1002 are rotatably provided on the mounting frame 1. The wire cutting blade 5 is sleeved on the first blade transmission wheel 1001 and the second blade transmission wheel 1002. The transmission wheel driving motor 1003 is drivingly connected to the first blade transmission wheel 1001. The transmission wheel driving motor 1003 drives the first blade transmission wheel 1001 to make the wire cutting blade 5 run on the first blade transmission wheel 1001 and the second blade transmission wheel 1002.

[0037] In an embodiment of the present application, a tensioning mechanism is further included. The tensioning mechanism includes a tensioning screw rod 1101, a tensioning sliding member 1102, and a tensioning handle 1103. The tensioning sliding member 1102 is slidably provided on the mounting frame 1. A screw rod sleeve is provided on the tensioning sliding member 1102. The tensioning screw rod 1101 is rotatably provided on the mounting frame 1. The tensioning screw rod 1101 and the screw rod sleeve fit with each other. The tensioning handle 1103 is fixedly installed on one side of the tensioning screw rod 1101. Rotating the tensioning screw rod 1101 makes the tensioning sliding member 1102 move horizontally on the mounting frame 1. The second blade transmission wheel 1002 is rotatably installed on the tensioning sliding member 1102. During use, rotating the tensioning handle 1103 drives the tensioning screw rod 1101 to rotate. The rotation of the tensioning screw rod 1101 drives the tensioning sliding member 1102 to move horizontally, thereby adjusting the relative gap between the second blade transmission wheel 1002 and the first blade transmission wheel 1001, and thus adjusting the tension of the wire cutting blade 5.

[0038] Among them, a detection structure is also provided at the lifting component 8. The detection mechanism includes a detection frame, a detection limit member 803, a detection lead screw, an upper opto-coupler switch, and a lower opto-coupler switch. The detection frame is slidably arranged on the installation frame 1 in the vertical direction. The detection limit member 803 is fixedly arranged on the installation frame 1. The detection lead screw is rotatably arranged on the detection limit member 803. A detection lead screw sleeve is arranged on the detection frame. The detection lead screw fits with the detection lead screw sleeve. Rotating the detection lead screw and the detection lead screw sleeve cooperate to finely adjust the height of the detection frame. The upper opto-coupler switch and the lower opto-coupler switch are arranged on the detection frame.

[0039] Optionally, in this solution, a knife grinding mechanism is provided on the installation frame 1. During the operation of the wire cutting blade 5, the wire cutting blade 5 can be ground by the knife grinding mechanism, so as to maintain the sharpness of the wire cutting blade 5, thereby improving the cutting effect of the wire cutting blade 5 on the thread end.

[0040] In this solution, as Figure 1 shown, the width of the lower installation roller 3 is smaller than the width of the installation roller 2. When in use, a guide plate is arranged between the lower installation roller 3 and the upper installation roller 2. The fabric is placed on the guide plate and guided straight between the lower installation roller 3 and the upper installation roller 2. At this time, the parts of the fabric on both sides that do not need to be cut can naturally hang down from both sides of the guide plate, so as to prevent the equipment from causing cutting damage to the redundant parts on both sides of the fabric.

[0041] When this application is in use, the roller drive motor 4 and the transmission wheel drive motor 1003 are started. The first blade transmission wheel 1001 is driven to rotate by the transmission wheel drive motor 1003. The wire cutting blade 5 is driven to operate by the first blade transmission wheel 1001. The wire cutting blade 5 transmits the power to the second blade transmission wheel 1002. At this time, the wire cutting blade 5 operates at high speed under the cooperation of the first blade transmission wheel 1001 and the second blade transmission wheel 1002. The fabric is inserted between the upper installation roller 2 and the lower installation roller 3. The wire cutting blade 5 shears the thread end on the fabric that is higher than the set height.

[0042] At the same time, the roller drive motor 4 drives the lower installation roller 3 to rotate. The lower installation roller 3 rotates to drive the driving gear 301 to rotate. The driving gear 301 drives the first transmission gear 901 to rotate. The first transmission gear 901 drives the second transmission gear 902. The second transmission gear 902 drives the driven gear 201 to rotate. The upper installation roller 2 is driven to rotate by the driven gear 201. The lower installation roller 3 and the upper installation roller 2 rotate synchronously and in opposite directions to convey the fabric, so as to continuously cut the fabric.

[0043] When the cutting thickness of the cloth needs to be controlled, the height of the lower mounted roller 3 is controlled by the height adjustment mechanism, the height adjustment motor 6 is started, the height adjustment motor 6 drives the height synchronization rod 7 to rotate, the first bevel gear 701 on the height synchronization rod 7 drives the second bevel gear 804 to rotate, the rotation of the second bevel gear 804 drives the lifting screw rod 802 to rotate, the lifting slider 801 is lifted and lowered by the cooperation between the lifting screw rod 802 and the screw rod groove, and the lifting and lowering of the lifting slider 801 drives the lower mounted roller 3 to adjust its height.

[0044] On this basis, in order to further improve the safety and stability of the equipment, when the equipment is not running, the lower roller drops down to leave enough space for the fabric. At this time, the staff can stuff the fabric between the lower mounting roller 3 and the upper mounting roller 2, and then start the equipment. At this time, the lower mounting roller 3 automatically rises, and the lower mounting roller 3 and the upper mounting roller 2 match each other to drive the fabric to move. After the cutting of the fabric is completed, the lower mounting roller 3 moves downward again, and an appropriate space is opened between the lower mounting roller 3 and the upper mounting roller 2. At this time, the staff can safely take the fabric out of the equipment.

[0045] The technical principle of the present invention is described above in combination with specific embodiments. These descriptions are only for explaining the principle of the present invention and cannot be interpreted as limiting the protection scope of the present invention in any way. Based on the explanations here, technicians in this field can think of other specific implementation methods of the present invention without creative work, and these methods will fall within the protection scope of the claims of the present invention.

Claims

1. An automatic thread trimmer, characterized in that: The invention comprises a mounting frame (1), a thread trimming mechanism, an upper mounting roller (2), a lower mounting roller (3) and a roller driving motor (4); the upper mounting roller (2) and the lower mounting roller (3) are rotatably mounted on the mounting frame (1), and the axes of the upper mounting roller (2) and the lower mounting roller (3) are arranged parallel to each other; the thread trimming mechanism comprises a thread trimming blade (5); the thread trimming blade (5) passes between the upper mounting roller (2) and the lower mounting roller (3), and the thread trimming blade (5) rotates around the upper mounting roller (2); the roller driving motor (4) is arranged on the mounting frame (1) and is transmission-connected to the lower mounting roller (3); the upper mounting roller (2) and the lower mounting roller (3) are transmission-connected in reverse direction; The invention also comprises a height adjustment mechanism, the height adjustment mechanism comprising a height adjustment motor (6), a height synchronization rod (7) and a lifting assembly (8), the height synchronization rod (7) being rotatably arranged on the mounting frame (1), the height adjustment motor (6) being arranged on the mounting frame (1) and being transmission-connected to the height synchronization rod (7), two lifting assemblies (8) being arranged symmetrically on the mounting frame (1), the height synchronization rod (7) being transmission-connected to the two lifting assemblies (8), the height synchronization rod (7) rotating to adjust the height of the two lifting assemblies (8), and the two ends of the lower mounting roller (3) being rotatably arranged on the two lifting assemblies (8).

2. The automatic thread trimmer according to claim 1, characterized in that: The lifting assembly (8) comprises a lifting slider (801), a lifting screw rod (802) and a limiter (803); the limiter (803) is fixedly arranged on the mounting frame (1); the lifting screw rod (802) is rotatably arranged on the limiter (803); the lifting slider (801) is slidably arranged on the mounting frame (1); a screw rod groove is arranged on the lower end surface of the lifting slider (801); the lifting screw rod (802) is engaged with the screw rod groove on the lower end surface of the lifting slider (801); a first bevel gear (701) is fixedly arranged on the height synchronization rod (7); a second bevel gear (804) is arranged on the lower end of the lifting screw rod (802); the first bevel gear (701) and the second bevel gear (804) are meshed; the lifting screw rod (802) rotates to drive the lifting slider (801) to be lifted and lowered; and the two ends of the lower mounting roller (3) are rotatably arranged on the two lifting sliders (801).

3. The automatic thread trimmer according to claim 1, characterized in that: A driving gear (301) is arranged at the side end of the lower mounting roller (3), a driven gear (201) is arranged at the side end of the upper mounting roller (2), a first transmission gear (901) and a second transmission gear (902) are arranged on the mounting frame (1), the driving gear (301) and the first transmission gear (901) are clearance-matched, the first transmission gear (901) and the second transmission gear (902) are meshed, and the second transmission gear (902) is meshed with the driven gear (201).

4. The automatic thread trimmer according to claim 1, characterized in that: The lower mounting roller (3) is provided with a first universal joint (302), the first universal joint (302) is transmission-connected to a spline shaft (303), the output end of the roller driving motor (4) is provided with a second universal joint (401), the second universal joint (401) is transmission-connected to a spline sleeve (402), and the spline shaft (303) is inserted into the spline sleeve (402).

5. The automatic thread trimmer according to claim 1, characterized in that: The thread trimming mechanism further comprises a first blade transmission wheel (1001), a second blade transmission wheel (1002), and a transmission wheel driving motor (1003); the first blade transmission wheel (1001) and the second blade transmission wheel (1002) are rotatably arranged on the mounting frame (1); the thread trimming blade (5) is sleeved on the first blade transmission wheel (1001) and the second blade transmission wheel (1002); the transmission wheel driving motor (1003) is transmission-connected to the first blade transmission wheel (1001); the transmission wheel driving motor (1003) drives the first blade transmission wheel (1001) to make the thread trimming blade (5) run around the upper mounting roller (2) on the first blade transmission wheel (1001) and the second blade transmission wheel (1002).

6. The automatic thread trimmer according to claim 5, characterized in that: The invention also comprises a tensioning mechanism, wherein the tensioning mechanism comprises a tensioning screw rod (1101), a tensioning sliding member (1102) and a tensioning handle (1103), wherein the tensioning sliding member (1102) is slidably arranged on the mounting frame (1), a screw rod sleeve is arranged on the tensioning sliding member (1102), the tensioning screw rod (1101) is rotatably arranged on the mounting frame (1), the tensioning screw rod (1101) and the screw rod sleeve are fitted with each other, and the tensioning handle (1103) is fixedly mounted on one side of the tensioning screw rod (1101), and the tensioning screw rod (1101) is rotated to make the tensioning sliding member (1102) move laterally on the mounting frame (1).

7. The automatic thread trimmer according to claim 1, characterized in that: The width of the lower mounting roller (3) is smaller than the width of the upper mounting roller (2).

Images