Bead storage and loading device for embroidery machine

Abstract

The present application discloses a bead storage and loading device for an embroidery machine, relating to the technical field of embroidery machines. The device comprises a material storage cup, a reversible cup lid disposed on the material storage cup, and a feeding assembly fixedly disposed on the cup lid. The feeding opening of the feeding assembly is provided with a hinged opening and closing cover. The device also includes an opening and closing control mechanism for controlling the operating state of the opening and closing cover. The opening and closing control mechanism comprises a movable driving member and a driving mechanism connected to the driving member. During a forward reset process, the driving member can drive the opening and closing cover to swing, causing the feeding opening to enter a closed state. When the driving member is reversely driven, the opening and closing cover is released, and the opening and closing cover swings under its own weight, causing the feeding opening to enter an open state. The present application has a stable and compact structure.

Description

Technical Field

[0001] The present application relates to the technical field of embroidery machines, and in particular to a bead storage and loading device for an embroidery machine. Background Art

[0002] In the field of bead embroidery machinery, whether it is a bead embroidery device for single specifications or multiple specifications, each bead arrangement mechanism is provided with a feeding device. In order to save space, the volume of the material cup of the feeding device is usually not set to be particularly large, so frequent manual feeding is required, which is time-consuming and labor-intensive. In order to extend the feeding time and reduce the feeding frequency, improvements have been made to the feeding device, and a feeding device has been added. Continuous feeding is prone to the problem of overfeeding, so a feeding device with controllable feeding has emerged. The device with electronic components is expensive and inconvenient to install. Chinese patent CN215757956U discloses an intermittent quantitative feeding control mechanism for an embroidery machine, which uses the intermittent motion of a mechanical structure to control quantitative feeding, so that the feeding action is linked to the bead feeding action. It is not only durable, but also does not have the problem of overfeeding. However, this solution has the following problems: On the one hand, in order to make the structure compact, the pin is usually close to the hinge point of the C-shaped rotating arm, and due to space problems, the position of the pin is not easy to adjust, and a large force of the tension spring is required to keep the lower cover in a stable closed state. When it is necessary to open, the guide lifting part needs to overcome a large resistance to open the lower cover, and the force between the guide lifting part and the downward pressure swing rod is large, which in turn causes the swing link to be subjected to a large force. After long-term use, the swing link with a long cantilever is prone to deformation due to force, which affects the control accuracy. Moreover, because there is hard contact between the guide lifting part and the downward pressure swing rod, when the downward pressure swing rod is driven to lift, the contact friction will increase due to the increased resistance force, which will make the operation less stable and not smooth, and it is also prone to jamming and wear quickly. On the other hand, The downward pressure rocker is not easy to replace; on the other hand, the downward pressure rocker drives the C-shaped rotating arm connected to the lower cover by driving the sliding pin set on the cup cover. Since the lower cover and the C-shaped rotating arm are completely located in the feeding hopper, the pin needs to be replaced when the opening amplitude of the lower cover is adjusted to adjust the feeding amount. During the replacement of the pin, the lower cover will remain in the open state. When beads are embroidered in the feeding hopper, excessive feeding is likely to occur, making it inconvenient to adjust the opening amplitude of the lower cover, and the high-frequency friction between the pin and the C-shaped rotating arm will reduce the service life of the lower cover. Summary of the Invention

[0003] In view of this, the present application provides a bead storage and loading device for an embroidery machine to solve the technical problems of the existing opening and closing control structure having a short service life and poor operating stability.

[0004] To achieve the above object, the present invention provides the following technical solutions:

[0005] A bead storage and feeding device for an embroidery machine includes a material storage cup, a reversible cup cover arranged on the material storage cup, and a feeding assembly fixedly arranged on the cup cover. A hinged opening and closing cover is provided at the feeding port of the feeding assembly, wherein the device also includes an opening and closing control mechanism for controlling the working state of the opening and closing cover. The opening and closing control mechanism includes a movably arranged driving member and a driving mechanism connected to the driving member. The driving member can drive the opening and closing cover to swing during the forward resetting process so that the feeding port enters a closed state; when the driving member is driven in the reverse direction, the opening and closing cover will be released, and the opening and closing cover will swing under the action of its own weight so that the feeding port enters an open state.

[0006] Furthermore, it is characterized in that the opening and closing cover has a control portion extending upward, and the driving member cooperates with the control portion.

[0007] Furthermore, the driving member is hingedly arranged, and the driving mechanism includes a transmission mechanism and a rotating shaft. The rotating shaft drives the driving member through the transmission mechanism, so that the rotating shaft and the driving member can be linked.

[0008] Furthermore, the transmission mechanism includes a hinged cam, and the driving member controls the opening and closing cover to open when the driving member is driven in the reverse direction by the rotation of the cam. The driving member can automatically reset under the action of elastic force to keep the opening and closing cover closed.

[0009] Furthermore, the driving member is a rigid member or an elastic member.

[0010] Furthermore, when the driving member is an elastic member, the driving member is a torsion spring, and the movable arm of the torsion spring is in contact with the cam.

[0011] Furthermore, a limiting groove for limiting the movable arm of the torsion spring is provided on the opening and closing cover.

[0012] Furthermore, a pressing head capable of abutting against the cam is installed on the movable arm of the torsion spring.

[0013] Furthermore, the control part is provided with an adjusting screw rod, and the driving part of the driving member drives the opening and closing cover to swing by acting on the adjusting screw rod.

[0014] Furthermore, the transmission mechanism also includes a transmission shaft connected to the cam, and the transmission shaft is connected to the rotating shaft through a synchronous belt transmission assembly.

[0015] It can be seen from the above technical solution that the advantages of the present invention are:

[0016] 1. In the present application, a driving member is used to drive the upward extending control portion of the opening and closing cover to perform opening and closing control. In the present application, the driving member is preferably located above the opening and closing cover. The length of the control portion and the height position of the driving member can be designed according to the needs to adjust the external driving torque required for resetting the opening and closing cover. By reducing the required driving force, the force on the entire mechanism is reduced, the operation is smooth, the wear is small, the service life is long, and there is no need to change the size of the storage cup.

[0017] 2. There is no long cantilever structure in this application, which makes the structure stable and not easy to deform, and has a long service life.

[0018] 3. The hinged portion of the opening and closing cover in this application can be set on or above the cup cover, which can shorten the length of the lower tube body of the feeding component, making the feeding port strong and not easy to deform.

[0019] 4. The hinge axis of the driving member in this application is arranged vertically relative to the cup cover, making the installation and replacement of the driving member convenient.

[0020] 5. In this application, an adjusting screw rod provided on the control part is used to adjust the engagement amplitude of the opening and closing cover, which makes the adjustment convenient, and the opening and closing cover can always remain in a closed state during the adjustment process, and the driving part is in direct contact with the adjusting screw rod. After wear, the adjustment accuracy can be compensated by adjusting the position of the adjusting screw rod, and no wear is caused to the opening and closing cover. The opening and closing cover has a long service life.

[0021] 6. When the driving member in this application is an elastic member, the setting of the elastic reset structure can be saved, and the structure of the driving member is also simpler, which will make the structure of the driving part of the opening and closing control mechanism more compact, and thus make the overall structure of the bead storage and loading device more compact, and the occupied space can be minimized. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] The drawings that constitute a part of this application are used to provide further understanding of this application. The illustrative embodiments of this application and their descriptions are used to explain this application and do not constitute improper limitations on this application.

[0023] Figure 1 This is a schematic diagram of the structure of this application.

[0024] Figure 2 for Figure 1 A partial enlarged view of point A in the figure.

[0025] Figure 3 This is a schematic diagram of the first structure of the opening and closing control mechanism of this application Figure 1 .

[0026] Figure 4 This is a schematic diagram of the first structure of the opening and closing control mechanism of this application Figure 2 .

[0027] Figure 5 This is a second structural diagram of the opening and closing control mechanism of this application.

[0028] Explanation of the accompanying drawings: 1-frame; 2-storage cup; 3-feeding assembly; 4-rotating shaft; 5-driving cam; 6-opening and closing control mechanism; 61-driving pulley; 62-driven pulley; 63-synchronous belt; 64-transmission shaft; 65-cam; 66-swinging member; 67-elastic member; 68-adjusting screw rod; 69-pressure head; 610-tensioning mechanism; 7-opening and closing cover; 71-crank arm; 72-control part; 73-limiting groove; 8-cup cover; 9-time-sharing clamping device; 10-beading wire; 20-elastic clamping ring. DETAILED DESCRIPTION

[0029] In order to make the purpose, technical solutions and advantages of this application more clear, the following further describes this application in detail in conjunction with the embodiments and drawings. Here, the illustrative embodiments of this application and their descriptions are used to explain this application, but are not intended to limit this application.

[0030] Chinese patent CN215757956U discloses an intermittent quantitative feeding control mechanism for an embroidery machine, which uses the intermittent motion of a mechanical structure to control the quantitative feeding, so that the feeding action is linked with the bead feeding action. It is not only durable, but also does not cause the problem of excessive feeding. However, this solution has the following problems: on the one hand, in order to make the structure compact, the pin is usually close to the hinge point of the C-shaped rotating arm, and due to space problems, the position of the pin is not easy to adjust, and a large force of the tension spring is required to keep the lower cover in a stable closed state. When the lower cover needs to be opened, the guide lifting part needs to overcome a large resistance to open the lower cover, and the force between the guide lifting part and the downward pressure rocker is large, which in turn causes the swing link to be subjected to a large force. After long-term use, the swing link with a longer cantilever is easily deformed by force, which affects the control accuracy, and the contact friction between the structures is increased due to the increased resistance. The C-shaped arm is not easy to be damaged, and the maintenance work is ineffective.

[0031] Example 1

[0032] like Figures 1 to 4The bead storage and loading device of an embroidery machine shown in the figure includes a storage cup 2, a reversible cup cover 8 arranged on the storage cup 2, a feeding component 3 fixedly arranged on the cup cover 8, and an opening and closing control mechanism 6. A hinged opening and closing cover 7 is provided at the feeding port of the feeding component 3, and the opening and closing control mechanism 6 is used to control the opening and closing working state of the opening and closing cover 7.

[0033] In the present application, the opening and closing control mechanism 6 includes a movably arranged driving member 66 and a driving mechanism connected to the driving member 66. The driving member 66 can drive the opening and closing cover 7 to swing during the forward resetting process so that the discharge port enters a closed state; when the driving member 66 is driven in the reverse direction, the opening and closing cover 7 will be released, and the opening and closing cover 7 will swing under the action of its own weight so that the discharge port enters an open state.

[0034] When it is necessary to keep the opening and closing cover 7 in a normally open state, the driving member 66 can release the opening and closing cover 7 during the forward resetting process, and the opening and closing cover 7 swings under the action of its own weight to make the discharge port enter the open state; when the driving member 66 is driven in the reverse direction, it can drive the opening and closing cover 7 to swing to make the discharge port enter the closed state.

[0035] In the present application, the opening and closing cover 7 has a control part 72 extending to the outside of the cup cover 8. The control part 72 is an extension arm extending outward. The driving member 66 acts directly on the control part 72. The driving member 66 can be set to slide in translation or hinged. A swing driving assembly is used to drive the driving member 66 to move or swing to drive the opening and closing cover 7 to swing. The swing driving assembly is a motor that drives the fork to rotate, and the fork mouth of the fork cooperates with the convex shaft set on the driving member 66 to drive the slidingly installed driving member 66 to move back and forth or the hinged driving member 66 to swing back and forth; or the swing driving assembly is a motor that drives the cam 65 to rotate, and the cam 65 is used to drive the sliding driving member 66 to translate or the hinged driving member 66 to rotate, and cooperates with the elastic member to enable the driving member 66 to automatically reset. Since the extension arm needs to pass through the cup cover 8, the opening and closing cover 7 can be directly installed on the connecting flange of the storage cup 2. Now, for installation on the discharge extension tube, the installation structure of the opening and closing cover 7 of the present application is more stable, and the cantilever length of the discharge tube can be shortened as much as possible, so that the discharge tube is strong, not easy to deform, and has a long service life. It is also convenient to control the required external driving torque by adjusting the position of the driving member 66 and the length of the control part 72 of the opening and closing cover 7. By reducing the required driving force, the stress on the entire mechanism is small, the wear is small, the service life is long, and there is no need to adjust the size of the storage cup 2.

[0036] In the present application, the control portion 72 may extend upward or horizontally.

[0037] In this embodiment, preferably, the opening and closing cover 7 has a control part 72 extending upward, and the driving member 66 cooperates with the control part 72. The control part 72 extends upward. By adjusting the height of the driving member 66, the size of the driving force can be adjusted without increasing the occupied space of the device.

[0038] In the present application, the feeding assembly 3 includes a funnel-shaped feeding cup, a feeding pipe arranged at the bottom of the feeding cup, and a connecting flange arranged on the feeding pipe for connecting to the cup cover 8, and the opening and closing cover 7 is hingedly mounted on the connecting flange.

[0039] In this embodiment, preferably, the driving member 66 is hingedly arranged, and the driving mechanism includes a transmission mechanism and a rotating shaft 4. The rotating shaft 4 drives the driving member 66 through the transmission mechanism, so that the rotating shaft 4 and the driving member 66 can be linked. The rotating shaft 4 is used to simultaneously control the discharge and replenishment of beads, which can save power structure, make the structure compact, low cost, and have high synchronization between replenishment and discharge.

[0040] In the present application, the transmission mechanism can also be connected to the corresponding power structure. When the transmission mechanism is connected to the corresponding independently set power structure, the feeding frequency is flexibly adjustable, but the volume of the bead storage and feeding device is large and the cost is high.

[0041] When the driving member 66 is hinged, the driving member 66 can swing in the vertical plane or in the horizontal plane. When the driving member 66 swings in the vertical plane, the driving member 66 is driven by a lifting mechanism or a horizontal rotating disk structure with a protruding structure on the end surface to swing the driving member 66 up and down. The extension arm of the opening and closing cover 7 extends horizontally or vertically, which is adaptively adjusted depending on the specific structure of the driving member 66.

[0042] In this embodiment, preferably, the driving member 66 swings in the horizontal plane, and the extension arm of the opening and closing cover 7 extends upward. The size of the occupied space of the device will not be changed during adjustment, and the structure of the transmission mechanism is simpler and more compact. Since the hinge shaft of the driving member 66 is installed perpendicular to the cup cover 8 and the installation can be completed using a hinge shaft, the driving member 66 is easy to disassemble, replace and adjust. The hinge shaft can be threadedly connected to the cup cover 8 to limit the driving member 66. The height position of the driving member 66 is adjusted by using a gasket to achieve the adjustment of the driving force.

[0043] In this embodiment, preferably, the transmission mechanism includes a hinged cam 65, and the driving member 66 controls the opening and closing cover 7 when the rotation of the cam 65 is reversely driven. The driving member 66 can automatically reset under the action of elastic force to keep the opening and closing cover 7 closed.

[0044] In this embodiment, the transmission mechanism further includes a transmission shaft 64 disposed on the frame 1 and connected to a cam 65. The transmission shaft 64 is linked to the rotating shaft 4 via a synchronous belt drive assembly, a chain drive mechanism, or a gear drive mechanism. The components of the opening and closing control mechanism 6 of this application do not have a long cantilever structure, thereby ensuring a stable structure and a long service life for the opening and closing control mechanism 6.

[0045] Specifically, the present application preferably connects the transmission shaft 64 to the rotating shaft 4 through a synchronous belt transmission assembly to achieve linkage, so that the synchronization is high, the stability is good, and the noise is low. The driving pulley 61 of the synchronous belt transmission assembly is connected to the rotating shaft 4, and the driven pulley 62 of the synchronous belt transmission assembly is connected to the transmission shaft 64. The driving pulley 61 and the driven pulley 62 achieve synchronous movement through the set synchronous belt 63, and an adjustable tensioning mechanism 610 is provided on the side of the synchronous belt 63.

[0046] The cam 65 of the opening and closing control mechanism 6 in the present application is a one-way continuous rotation, and the cam 65 will quickly reset at the moment of separation from the driving member 66. An elastic clamp with multiple claws is provided at the discharge port, and the elastic clamp cooperates with the opening and closing cover 7 to control the opening and closing of the discharge port. The setting of the elastic clamp can reduce the rigid impact between the opening and closing cover 7 and the feeding component 3, making less noise and making the device stable during operation. A roller is provided on the end of the driving member 66 that cooperates with the cam 65, and the roller is used to reduce the friction between the driving member 66 and the cam 65, thereby reducing wear.

[0047] In this embodiment, the driving member 66 is a rigid member.

[0048] When the driving member 66 is a rigid member, the elastic member 67 acting on the driving member 66 is preferably a torsion spring arranged on the hinge shaft of the driving member 66 .

[0049] In the present application, the opening and closing cover 7 includes a cover body portion that can control the opening and closing of the discharge port and a crank arm 71 connected to the cover body portion. The control portion 72 of the opening and closing cover 7 is arranged on the crank arm 71, and the control portion 72 is provided with an adjusting screw 68. The driving portion of the driving member 66 drives the opening and closing cover 7 to swing by acting on the adjusting screw 68. By adjusting the extended length of the adjusting screw rod 68 on the side close to the driving member 66, the maximum opening amplitude of the opening and closing cover 7 can be adjusted according to the feeding speed or the specifications of the embroidery beads, and the single feeding amount can be adjusted to avoid overflow caused by excessive feeding. Using the adjusting screw rod 68, on the one hand, when adjusting the opening amplitude of the opening and closing cover 7, the adjusting screw rod 68 can be directly screwed at the same time to adjust it. During the adjustment process, the opening and closing cover 7 can remain in a closed state, and the storage cup 2 can remain in a filled state, so that the opening amplitude of the opening and closing cover 7 is easy to adjust; on the other hand, the adjusting screw rod 68 is in contact with the driving member 66. When the adjusting screw rod 68 or the driving member 66 is worn, the adjusting screw rod 68 can be adjusted to compensate for the wear and make the single feeding amount stable, and the wear of the opening and closing cover 7 can be avoided, so that the service life of the opening and closing cover 7 is prolonged.

[0050] The opening and closing control mechanism 6 in this application is driven by a rotating shaft 4, which is connected to a motor. A plurality of driving cams 5 are also provided on the rotating shaft 4. The driving cams 5 correspond to the clamping components of the time-sharing clamping device 9 provided on the frame 1. The upper end of the beading wire 10 located in the clamping mouth of the time-sharing clamping device 9 extends into the storage cup 2. When the rotating shaft 4 rotates, it drives the synchronous belt transmission component, the driving cam 5, and the agitator located in the storage cup 2 to rotate simultaneously, thereby realizing simultaneous control of the opening and closing control mechanism 6, the time-sharing clamping device 9 and the beading operation, so that feeding and unloading can be synchronized, the feeding speed can be controlled, and the problem of excessive feeding can be avoided. Among them, the specific structure of the time-sharing clamping device 9 can refer to other patent documents previously applied for by the applicant.

[0051] Example 2

[0052] like Figure 1 and Figure 5 As shown, the driving member 66 in this embodiment is an elastic member and moves in a horizontal plane. Other structures are the same as those disclosed in the first embodiment.

[0053] When the driving member 66 is an elastic member, in this embodiment, preferably, the driving member 66 is a torsion spring, the hinge axis of the torsion spring and the cup cover 8 are perpendicular to each other, the movable arm of the torsion spring is in contact with the cam 65, and the movable arm of the torsion spring acts on the control part 72 of the opening and closing cover 7, and the fixed end of the torsion spring is connected to the cup cover 8. When the cam 65 rotates, it can deform the torsion spring by driving the movable arm of the torsion spring to move. At the same time, the movable arm releases the control part 72 of the opening and closing cover 7. Under the action of gravity, the opening and closing cover 7 automatically opens the feeding port for feeding. When the cam 65 separates from the movable arm of the torsion spring, the torsion spring automatically resets the movable arm under the action of its own elastic force. During the resetting process of the movable arm, the opening and closing cover 7 is reset and compounded by pushing the control part 72, so that the feeding port is reset to the closed state and the feeding is stopped.

[0054] In this embodiment, a limiting groove 73 for limiting the movable arm of the torsion spring is provided on the control portion 72. The limiting groove 73 is used to guide the movable arm of the torsion spring to prevent it from swinging up and down and affecting the control accuracy.

[0055] Specifically, the limiting groove 73 is formed by bending the control portion 72 or using a cutting process.

[0056] When the control portion 72 is provided with an adjusting screw 68 , the movable arm of the torsion spring abuts against the adjusting screw 68 .

[0057] In order to make the movable arm of the torsion spring more rigid and less prone to deformation, a pressing head 69 capable of abutting against the cam 65 is installed on the movable arm of the torsion spring.

[0058] Specifically, the end of the movable arm of the torsion spring is wound around the pressure head 69 to achieve fixed installation of the pressure head 69, which increases the strength of the end of the movable arm of the torsion spring. It also facilitates the reliable and controllable driving of the torsion spring by adjusting the relative position of the pressure head 69, and reduces the installation position accuracy of the torsion spring, cam 65 and opening and closing cover 7.

[0059] The driving member 66 is an elastic member, and the driving member 66 can also be an elastic strip or a coil spring.

[0060] The above description is merely a preferred embodiment of the present application and is not intended to limit the present application. Those skilled in the art will appreciate that various modifications and variations of the present embodiment are possible. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of the present application shall be included within the scope of protection of the present application.

Claims

1. A bead storage and feeding device for an embroidery machine, comprising a storage cup (2), a cup cover (8) which is reversibly arranged on the storage cup (2), and a feeding assembly (3) which is fixedly arranged on the cup cover (8), wherein a hinged opening and closing cover (7) is provided at a feeding port of the feeding assembly (3), and characterized in that: The invention also includes an opening and closing control mechanism (6) for controlling the working state of the opening and closing cover (7), the opening and closing control mechanism (6) includes a movably arranged driving member (66) and a driving mechanism connected to the driving member (66), the opening and closing cover (7) has an upwardly extending control portion (72), the driving member (66) moves along the horizontal plane, the driving member (66) cooperates with the control portion (72), and the driving member (66) can drive the opening and closing cover (7) to swing during the positive resetting process so that the discharge port enters a closed state; when the driving member (66) is driven in the reverse direction, the opening and closing cover (7) is released, and the opening and closing cover (7) swings under the action of its own weight so that the discharge port enters an open state.

2. The bead storage and feeding device of the embroidery machine according to claim 1, characterized in that: The driving member (66) is hingedly arranged, and the driving mechanism includes a transmission mechanism and a rotating shaft (4). The rotating shaft (4) drives the driving member (66) through the transmission mechanism, so that the rotating shaft (4) and the driving member (66) can be linked.

3. The bead storage and feeding device of the embroidery machine according to claim 2, characterized in that: The transmission mechanism includes a hinged cam (65), and the driving member (66) controls the opening and closing cover (7) when the rotation of the cam (65) is reversely driven. The driving member (66) can automatically reset under the action of elastic force to keep the opening and closing cover (7) closed.

4. The bead storage and feeding device for an embroidery machine according to claim 3, characterized in that: The driving member (66) is a rigid member or an elastic member.

5. The bead storage and loading device for an embroidery machine according to claim 4, characterized in that: When the driving member (66) is an elastic member, the driving member (66) is a torsion spring, and the movable arm of the torsion spring abuts against the cam (65).

6. The bead storage and feeding device for an embroidery machine according to claim 5, characterized in that: The opening and closing cover (7) is provided with a limiting groove (73) for limiting the movable arm of the torsion spring.

7. The bead storage and feeding device for an embroidery machine according to claim 5, characterized in that: A pressing head (69) capable of abutting against the cam (65) is mounted on the movable arm of the torsion spring.

8. The bead storage and feeding device for an embroidery machine according to claim 1, characterized in that: The control part (72) is provided with an adjusting screw rod (68), and the driving part of the driving member (66) drives the opening and closing cover (7) to swing by acting on the adjusting screw rod (68).

9. The bead storage and loading device for an embroidery machine according to claim 3, characterized in that: The transmission mechanism further comprises a transmission shaft (64) connected to the cam (65), and the transmission shaft (64) is connected to the rotating shaft (4) via a synchronous belt transmission assembly.

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