An intermittent quantitative feeding control mechanism for an embroidery machine

Abstract

The invention discloses an intermittent quantitative feeding control mechanism for an embroidery machine, comprising a material cup, a feeding tube, a C-shaped rotating arm and a pin; a cup cover is provided at the opening of the material cup; the feeding tube is fixed on the cup cover, a lower cover is provided below the lower end outlet of the feeding tube, one end of the C-shaped rotating arm is fixedly connected to the lower cover, the other end of the C-shaped rotating arm is hinged to the feeding tube, the pin passes through the cup cover and slides with the cup cover, the lower end of the pin contacts the C-shaped rotating arm, a clamping mechanism capable of clamping or disengaging the pin is provided on the cup cover, when the clamping mechanism clamps the pin, the lower end of the pin clamps the C-shaped rotating arm, the lower cover abuts against the lower end outlet of the feeding tube so that the lower end outlet of the feeding tube is in a closed state, when the clamping mechanism is disengaged from the pin, the lower end of the pin releases the C-shaped rotating arm, the lower cover leaves the lower end outlet of the feeding tube under the action of gravity so that the lower end outlet of the feeding tube is in an open state. The invention has compact structure, convenient installation and maintenance, low cost, good stability in use, and is not prone to failure.

Description

Technical Field

[0001] The invention relates to an embroidery machine, in particular to an intermittent quantitative feeding control mechanism of the embroidery machine. Background Art

[0002] Computer embroidery machine is a mechatronic textile equipment that combines computer control system with embroidery machinery and can embroider various complex patterns. The loose beads used for embroidery on the embroidery machine are usually stored in a beading plate. The beading plate rotates while the beading wire does not move, so that there is a certain probability that the loose beads in the beading plate will be inserted into the beading wire. The loose beads behind the beading wire will push the loose beads in front forward, so that the loose beads can reach the bead feeding mechanism along the beading wire for embroidery.

[0003] At present, the beaded tray is usually supplemented manually, that is, when there are fewer loose beads in the beaded tray, a certain amount of loose beads are added to the loose bead tray manually. Manual supplementation is not only inconvenient to operate, but also time-consuming and labor-intensive.

[0004] For example, the Chinese patent with authorization announcement number CN213444858U and authorization announcement date 2021.06.15 discloses an embroidery bead feeding control mechanism, which includes a feeding sleeve, an opening and closing cover, a limit switch, a driving mechanism and a control unit, wherein the limit switch is electrically connected to the control unit, and the limit switch is used to control the opening and closing of the opening and closing cover of the driving mechanism. The embroidery bead feeding control mechanism has at least the following defects: (1) It includes a limit switch proximity switch, a control unit and a driving mechanism, which has a complex structure, high cost and high failure rate; (2) The installation of the control unit and the driving mechanism requires a certain space, which not only increases the volume of the embroidery machine, but also is not conducive to the installation and maintenance of other parts on the embroidery machine; (3) The limit switch is electrically connected to the control unit, and the limit switch is used to control the opening and closing of the opening and closing cover of the driving mechanism. The limit switch, the control unit and the driving mechanism all need to be wired and the power cord or air supply line is wired, which is inconvenient to install; (4) The proximity switch will be affected by the ambient temperature, and the detection accuracy and stability are poor. Summary of the invention

[0005] The present invention aims to solve the above-mentioned technical problems existing in the prior art embroidery bead feeding control mechanism, and provides an intermittent quantitative feeding control mechanism which has a compact structure, is easy to install and maintain, has low cost, good stability in use, and is not prone to failure.

[0006] In order to achieve the above-mentioned purpose, the present invention adopts the following technical scheme: an intermittent quantitative feeding control mechanism of an embroidery machine of the present invention comprises a material cup, a feeding tube, a C-shaped rotating arm and a pin; a cup cover is provided at the opening of the material cup, and the material cup can rotate relative to the cup cover; the feeding tube is fixed on the cup cover, and a lower cover is provided below the lower end outlet of the feeding tube, one end of the C-shaped rotating arm is fixedly connected to the lower cover, and the other end of the C-shaped rotating arm is hinged to the feeding tube, the pin passes through the cup cover and slides with the cup cover, the lower end of the pin contacts the C-shaped rotating arm, and a clamping mechanism that can press or disengage the pin is provided on the cup cover, when the clamping mechanism presses the pin, the lower end of the pin presses the C-shaped rotating arm, the lower cover presses against the lower end outlet of the feeding tube so that the lower end outlet of the feeding tube is in a closed state, when the clamping mechanism is separated from the pin, the lower end of the pin releases the C-shaped rotating arm, and the lower cover leaves the lower end outlet of the feeding tube under the action of gravity so that the lower end outlet of the feeding tube is in an open state. The feeding tube in the present invention is used for feeding, and a feeding hopper and other feeding containers are connected to the feeding tube. The present invention can realize the opening and closing of the lower end outlet of the feeding tube through the cooperation between the C-shaped rotating arm, the pin column and the clamping mechanism, so that the feeding cup can be fed through the feeding tube. The principle is: when the clamping mechanism presses down the pin column, the lower end of the pin column presses down the C-shaped rotating arm so that the C-shaped rotating arm is subjected to force and rotates, thereby rotating the lower cover. When the lower cover rotates to interfere with the lower end outlet of the feeding tube, the clamping mechanism presses the pin column, and the lower cover blocks the lower end outlet of the feeding tube, and the lower end outlet of the feeding tube is closed at this time; when the clamping mechanism is separated from the pin column, the lower end of the pin column releases the C-shaped rotating arm, and the C-shaped rotating arm rotates under the action of gravity (the gravity of the cover and the C-shaped rotating arm), thereby causing the lower cover to leave the lower end outlet of the feeding tube, so that the lower end outlet of the feeding tube is in an open state.

[0007] Preferably, the clamping mechanism comprises a mounting frame, a downward pressure rocker arm and a camshaft; a support seat is fixed on one side of the mounting frame, the downward pressure rocker arm is located above the cup cover, the inner end of the downward pressure rocker arm can be crimped and matched with the upper end of the pin, the outer end of the downward pressure rocker arm is hinged with the upper part of the support seat, and a tension spring is provided on one side of the downward pressure rocker arm, and the two ends of the tension spring are respectively fixedly connected with the cup cover and the downward pressure rocker arm; a swing connecting rod is hinged on the middle part of the support seat, the upper end of the swing connecting rod is provided with a guide lifting part, and the bottom surface of the downward pressure rocker arm is provided with an arc groove surface, a section of the arc groove surface close to the discharge pipe is provided as an extrusion inclined surface, and the guide lifting part contacts with the arc groove surface and the extrusion inclined surface; the camshaft passes through the mounting frame and is rotatably connected to the mounting frame, and a cam is provided on the camshaft; a connecting rod shaft is slidably connected to the bottom of the support seat, the inner end face of the connecting rod shaft contacts the outer contour surface of the cam, and the outer end of the connecting rod shaft is rotatably connected to the lower end of the swing connecting rod. The camshaft in the present invention can be driven to rotate by a driving mechanism (motor, etc.). When the camshaft rotates, it drives the cam to rotate synchronously, and the cam transmits the motion to the connecting rod shaft in contact with it, so that the connecting rod shaft makes a reciprocating linear motion back and forth, thereby making the swing connecting rod swing back and forth, and making the guide lifting part move back and forth along the arc groove surface and the extrusion inclined surface, so that the downward pressure swing rod falls or lifts up; the tension spring can ensure that the downward pressure swing rod can always contact the arc groove surface and the extrusion inclined surface, and at the same time provide a clamping force on the pin column, and can also press down the guide lifting part to ensure that the inner end face of the connecting rod shaft is always in contact with the outer contour surface of the cam; when the flange of the cam contacts the inner end face of the connecting rod shaft, the connecting rod shaft moves outward to the maximum displacement, and the guide lifting part at the upper end of the swing connecting rod slides inward to the extrusion inclined surface and squeezes the extrusion inclined surface, thereby lifting the inner end of the downward pressure swing rod to make it disengaged from the upper end of the pin column. The lower end of the column releases the C-shaped arm, and the C-shaped arm rotates under the action of gravity (the gravity of the cover and the C-shaped arm), so that the lower cover leaves the lower outlet of the discharge tube, so that the lower outlet of the discharge tube is in an open state for filling. The extrusion slope also plays a guiding role, which can make the guide lifting part at the upper end of the swing connecting rod slide smoothly and quickly into the arc groove surface, ensuring that the downward pressure swing rod falls smoothly, so that the inner end of the downward pressure swing rod can be pressed with the upper end of the pin column in time; when the flange of the cam leaves the inner end surface of the connecting rod shaft, the connecting rod shaft moves inward, and the guide lifting part at the upper end of the swing connecting rod slides outward to the arc groove surface. Under the action of the tension spring, the inner end of the downward pressure swing rod presses the pin column again, and the lower cover blocks the lower outlet of the discharge tube. At this time, the lower outlet of the discharge tube is closed; in this reciprocating manner, the lower outlet of the discharge tube can be continuously opened or closed, thereby realizing intermittent quantitative filling of the material cup.

[0008] Preferably, a pair of articulated arms is provided on the cup cover, a pair of connecting ear plates is provided on the upper end of the support seat, the outer end of the downward pressure rocker arm is located between the connecting ear plates, the end of the articulated arm is located on the outside of the connecting ear plates, the end of the articulated arm and the outer end of the downward pressure rocker arm are hinged to the connecting ear plates through a pin shaft, the gap between the articulated arms forms an avoidance opening, and the upper end of the swing connecting rod passes through the avoidance opening.

[0009] Preferably, a roller is provided at the inner end of the connecting rod shaft, and the roller contacts the outer contour surface of the cam.

[0010] Preferably, the feed tube and the feed cup are eccentrically arranged.

[0011] Preferably, the upper end edge of the discharge tube is provided with a connecting flange, and the connecting flange is fitted and fixed to the top surface of the cup cover.

[0012] Preferably, the cup cover is provided with a limit block, the bottom surface of the downward pressure swing rod is provided with a limit groove matched with the limit block, and the two ends of the tension spring are respectively fastened to the limit block and the downward pressure swing rod by screws. The limit block plays a limiting role to prevent the downward pressure swing rod from directly colliding with the cup cover and being damaged, and is also used to connect the tension spring.

[0013] Preferably, a shaft sleeve is provided at the bottom of the support seat, and the connecting rod shaft passes through the shaft sleeve and is slidably engaged with the shaft sleeve.

[0014] Preferably, a support column is fixed on the top of the mounting frame, the material cup is fixed on the support column and is rotatably connected with the support column, a driven gear is fixed on the support column, the upper end of the camshaft passes through the mounting frame and is fixed with a driving gear, and the driving gear meshes with the driven gear. Through the cooperation of the driven gear and the driving gear, the material cup can be driven to rotate at the same time under the drive of the camshaft, and there is no need to install an additional driving device for driving the material cup to rotate, which is conducive to reducing installation space and reducing costs.

[0015] Preferably, a motor is fixed at the bottom of the mounting frame, and a motor shaft of the motor is connected to the camshaft via a coupling.

[0016] Therefore, the present invention has the following beneficial effects: through the cooperation between the lower cover, the C-shaped rotating arm, the pin column and the clamping mechanism, the lower end outlet of the feeding pipe is automatically opened or closed, thereby realizing intermittent quantitative feeding of the material cup. It is not only compact in structure, easy to install and maintain, but also low in cost, good in stability of use, and not prone to failure. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a stereogram of the present invention.

[0018] Figure 2 yes Figure 1 Enlarged view of point A in the middle.

[0019] Figure 3 yes Figure 1 Enlarged view of point B in the middle.

[0020] Figure 4 yes Figure 1 An exploded diagram of .

[0021] Figure 5 It is a schematic diagram of a state in which the lower cover is against the lower outlet of the feed pipe.

[0022] Figure 6 It is a schematic diagram of a state in which the lower cover leaves the lower end outlet of the feed pipe.

[0023] Figure 7 It is a three-dimensional image of a material cup.

[0024] In the figure: material cup 1, discharge pipe 2, C-shaped rotating arm 3, pin 4, cup cover 5, lower cover 6, mounting frame 7, downward pressure rocker 8, camshaft 9, support seat 10, tension spring 11, swing connecting rod 12, guide lifting part 13, arc groove surface 14, extrusion inclined surface 15, cam 16, connecting rod shaft 17, articulated arm 18, connecting ear plate 19, avoidance opening 20, roller 21, connecting flange 22, limit block 23, limit groove 24, screw 25, bushing 26, support column 27, driven gear 28, driving gear 29, motor 30, and feeding hopper 31. DETAILED DESCRIPTION

[0025] The present invention is further described below in conjunction with the accompanying drawings and specific embodiments.

[0026] like Figure 1 , Figure 2 , Figure 3 , Figure 4 The intermittent quantitative feeding control mechanism of an embroidery machine shown in the figure comprises a material cup 1, a feed tube 2, a C-shaped rotating arm 3 and a pin 4. A cup cover 5 is provided at the opening of the material cup. A connecting flange 22 is fixed to the upper edge of the feed tube, and the connecting flange is fixed to the top surface of the cup cover. The feed tube passes through the cup cover and is eccentrically arranged with the material cup. The lower end of the feed tube is located in the material cup. A lower opening cover 6 is provided below the lower outlet of the feed tube. One end of the C-shaped rotating arm is fixedly connected to the lower opening cover, and the other end of the C-shaped rotating arm is hinged to the feed tube. The pin passes through the cup cover and slides with the cup cover. The lower end of the pin contacts the C-shaped rotating arm. A clamping mechanism that can clamp or disengage the pin is provided on the cup cover. The clamping mechanism comprises a mounting frame 7, a downward pressing rocker 8 and a cam shaft 9. A support column 27 (such as Figure 7As shown in the figure, the material cup is fixed on the support column and is rotatably connected to the support column, a driven gear 28 is fixed on the support column, the camshaft passes through the mounting frame and is rotatably connected to the mounting frame, a cam 16 is fixed on the camshaft, the upper end of the camshaft passes through the mounting frame and is fixed with a driving gear 29, the driving gear is meshed with the driven gear, a motor 30 is fixed at the bottom of the mounting frame, the motor shaft of the motor is connected to the camshaft through a coupling, a support seat 10 is fixed on one side of the mounting frame, a pair of articulated arms 18 are fixed on the cup cover, and the upper end of the support seat is fixed There is a pair of connecting ear plates 19, the end of the hinged arm is located on the outside of the connecting ear plates, the downward pressure swing rod is located above the cup cover, the outer end of the downward pressure swing rod is located between the connecting ear plates, the end of the hinged arm and the outer end of the downward pressure swing rod are hinged to the connecting ear plates through a pin shaft, and the gap between the hinged arms forms an avoidance opening 20. The inner end of the downward pressure swing rod can be crimped and matched with the upper end of the pin column. A tension spring 11 is provided on one side of the downward pressure swing rod, a limiting block 23 is fixed on the cup cover, and a limiting groove 24 adapted to the limiting block is opened on the bottom surface of the downward pressure swing rod. Both ends of the tension spring They are fastened to the limit block and the downward pressure swing arm respectively by screws 25. A swing link 12 is hinged in the middle of the support seat. The upper end of the swing link passes through the avoidance opening. The upper end of the swing link is bent to form a guide lifting part 13. The contour surface of the guide lifting part is set as an arc surface. The bottom surface of the downward pressure swing arm is provided with an arc groove surface 14. A section of the arc groove surface close to the feed pipe is set as an extrusion slope 15. The guide lifting part contacts the arc groove surface and the extrusion slope. A shaft sleeve 26 is fixed at the bottom of the support seat. A connecting rod shaft 17 is arranged in the shaft sleeve. The connecting rod shaft and The shaft sleeve is slidably matched, and a roller 21 is fixed to the inner end of the connecting rod shaft, which contacts the outer contour surface of the cam. The outer end of the connecting rod shaft is rotatably connected to the lower end of the swing connecting rod. When the inner end of the downward-pressed swing arm presses the pin, the lower end of the pin presses the C-shaped rotating arm, and the lower cover presses against the lower end outlet of the discharge pipe to make the lower end outlet of the discharge pipe in a closed state. When the inner end of the downward-pressed swing arm is separated from the pin, the lower end of the pin releases the C-shaped rotating arm, and the lower cover leaves the lower end outlet of the discharge pipe under the action of gravity to make the lower end outlet of the discharge pipe in an open state.

[0027] The operation process of the present invention is as follows: the lower part of the feeding hopper 31 is plugged into the feeding tube, and the camshaft can rotate under the drive of the motor. When the camshaft rotates, it drives the cam to rotate synchronously, and the cam transmits the motion to the connecting rod shaft in contact with it, so that the connecting rod shaft makes a reciprocating linear motion back and forth, thereby making the swing connecting rod swing back and forth, so that the guide lifting part can move back and forth along the arc groove surface and the extrusion inclined surface, so that the downward pressure swing rod falls or lifts up; when the flange of the cam rotates to contact with the roller, the connecting rod shaft moves outward to the maximum displacement, and the guide lifting part at the upper end of the swing connecting rod slides inward to the extrusion inclined surface and squeezes the extrusion inclined surface, thereby lifting the inner end of the downward pressure swing rod and making it separate from the upper end of the pin column, at this time, the lower end of the pin column releases the C-shaped rotating arm, and the C-shaped rotating arm rotates under the action of gravity (the gravity of the mouth cover and the C-shaped rotating arm), so that the lower mouth cover leaves the lower end outlet of the feeding tube, so that the lower end outlet of the feeding tube is in an open state for feeding (such as Figure 5 As shown in the figure); when the flange of the cam leaves the roller, the connecting rod moves inwards, and the guide lifting part at the upper end of the swing connecting rod slides outwards to the arc groove surface. Under the action of the tension spring, the inner end of the swing rod is pressed down to re-tighten the pin, and the lower cover blocks the lower end outlet of the feed tube. At this time, the lower end outlet of the feed tube is closed (as shown in the figure); when the flange of the cam leaves the roller, the connecting rod moves inwards, and the guide lifting part at the upper end of the swing connecting rod slides outwards to the arc groove surface. Under the action of the tension spring, the inner end of the swing rod is pressed down to re-tighten the pin, and the lower cover blocks the lower end outlet of the feed tube. Figure 6 As shown); by this reciprocating motion, the outlet at the lower end of the feeding pipe can be continuously opened or closed, thereby realizing intermittent quantitative feeding of the material cup.

[0028] The above-described embodiment is only a preferred solution of the present invention and does not limit the present invention in any form. There are other variations and modifications without exceeding the technical solution described in the claims.

Claims

1. An intermittent quantitative feeding control mechanism for an embroidery machine, characterized in that: The invention comprises a material cup (1), a material discharge pipe (2), a C-shaped rotating arm (3) and a pin (4); a cup cover (5) is provided at the opening of the material cup, and the material cup can rotate relative to the cup cover; the material discharge pipe is fixed on the cup cover, the material discharge pipe and the material cup are eccentrically arranged, a lower opening cover (6) is provided below the lower end outlet of the material discharge pipe, one end of the C-shaped rotating arm is fixedly connected to the lower opening cover, and the other end of the C-shaped rotating arm is hinged to the material discharge pipe, the pin passes through the cup cover and slidably cooperates with the cup cover, the lower end of the pin contacts the C-shaped rotating arm, and a clamping mechanism that can press or disengage the pin is provided on the cup cover, and when the clamping mechanism presses the pin, the lower end of the pin presses the C-shaped rotating arm, and the lower opening cover The lower end outlet of the feeding tube is pressed against the lower end outlet of the feeding tube so that the lower end outlet of the feeding tube is in a closed state. When the clamping mechanism is separated from the pin, the lower end of the pin releases the C-shaped rotating arm, and the lower cover leaves the lower end outlet of the feeding tube under the action of gravity so that the lower end outlet of the feeding tube is in an open state. The clamping mechanism comprises a mounting frame (7) and a downward pressing swing rod (8), a support seat (10) is fixed on one side of the mounting frame, the downward pressing swing rod is located above the cup cover, the inner end of the downward pressing swing rod can be crimped and matched with the upper end of the pin, the outer end of the downward pressing swing rod is hinged to the upper part of the support seat, and a tension spring (11) is provided on one side of the downward pressing swing rod, and the two ends of the tension spring are respectively fixedly connected to the cup cover and the downward pressing swing rod.

2. The intermittent quantitative feeding control mechanism of an embroidery machine according to claim 1, characterized in that: The clamping mechanism also includes a camshaft (9); a swing link (12) is hingedly connected to the middle of the support seat, the upper end of the swing link is provided with a guide lifting portion (13), the bottom surface of the downward pressing swing link is provided with an arc groove surface (14), a section of the arc groove surface close to the discharge pipe is provided as an extrusion inclined surface (15), and the guide lifting portion is in contact with the arc groove surface and the extrusion inclined surface; the camshaft passes through the mounting frame and is rotatably connected to the mounting frame, and a cam (16) is provided on the camshaft; a connecting rod shaft (17) is slidably connected to the bottom of the support seat, the inner end surface of the connecting rod shaft is in contact with the outer contour surface of the cam, and the outer end of the connecting rod shaft is rotatably connected to the lower end of the swing link.

3. The intermittent quantitative feeding control mechanism of an embroidery machine according to claim 2, characterized in that: The cup cover is provided with a pair of hinged arms (18), the upper end of the support seat is provided with a pair of connecting ear plates (19), the outer end of the downward pressure swing rod is located between the connecting ear plates, the end of the hinged arm is located outside the connecting ear plates, the end of the hinged arm and the outer end of the downward pressure swing rod are hinged to the connecting ear plates through a pin shaft, the gap between the hinged arms forms an avoidance opening (20), and the upper end of the swing connecting rod passes through the avoidance opening.

4. The intermittent quantitative feeding control mechanism of an embroidery machine according to claim 2, characterized in that: A roller (21) is provided at the inner end of the connecting rod shaft, and the roller is in contact with the outer contour surface of the cam.

5. The intermittent quantitative feeding control mechanism of an embroidery machine according to claim 1, characterized in that: The upper end edge of the discharge pipe is provided with a connecting flange (22), and the connecting flange is fitted and fixed to the top surface of the cup cover.

6. The intermittent quantitative feeding control mechanism of an embroidery machine according to claim 2, characterized in that: The cup cover is provided with a limit block (23), the bottom surface of the downward-pressing swing rod is provided with a limit groove (24) matched with the limit block, and the two ends of the tension spring are respectively fastened to the limit block and the downward-pressing swing rod by screws (25).

7. The intermittent quantitative feeding control mechanism of an embroidery machine according to claim 2, characterized in that: A shaft sleeve (26) is provided at the bottom of the support seat, and the connecting rod shaft passes through the shaft sleeve and is slidably engaged with the shaft sleeve.

8. The intermittent quantitative feeding control mechanism of an embroidery machine according to claim 2, characterized in that: A support column (27) is fixed on the top of the mounting frame, the material cup is fixed on the support column and is rotatably connected to the support column, a driven gear (28) is fixed on the support column, the upper end of the camshaft passes through the mounting frame and is fixed with a driving gear (29), and the driving gear meshes with the driven gear.

9. The intermittent quantitative feeding control mechanism of an embroidery machine according to claim 8, characterized in that: A motor (30) is fixed at the bottom of the mounting frame, and a motor shaft of the motor is connected to a cam shaft via a coupling.

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