Tight coiling and boxing device for flat spiral spring

Abstract

The invention belongs to the technical field of machining equipment, and particularly relates to a coiling and boxing device for a flat spiral spring. The coiling and boxing device comprises a workbench, an ejection assembly, a coiling assembly and a box pressing assembly, and the workbench is provided with a through hole and a positioning block annularly arranged in the through hole; the ejection assembly comprises an ejection block and an ejection driving unit which are connected with each other; the coiling assembly comprises an insertion block and a coiling driving unit which are connected with each other; the box pressing assembly comprises a pressing block suspended on the workbench and a box pressing driving unit. Wherein the inserting block can be connected with a coil spring placed in the through hole and is driven by the coiling driving unit to coil the coil spring, the box pressing assembly can press a box body placed on the positioning block, and the ejection assembly can eject the coiled coil spring into the box body. By means of the structure, mechanical boxing of the flat spiral springs can be achieved, the efficiency and yield of tight coiling and boxing of the spiral springs are greatly improved, and potential safety hazards are greatly reduced.

Description

Technical Field

[0001] The invention belongs to the technical field of processing equipment, and particularly relates to a coiling and boxing device for a plane spiral spring. Background Art

[0002] Plane spiral springs are widely used in daily necessities, such as clockwork toys, dog leashes, and wire reels. Generally, spiral springs need to be placed in a box and then installed in the product before they can be used. In related technologies, spiral springs are mostly processed by a machine first and then manually packed in a box. However, the above processing method is not only inefficient and has a high defect rate, but also because the outer diameter of the wound spiral spring is larger than the outer diameter of the box body, the spiral spring needs to be tightened to an outer diameter smaller than the box body before being packed in the box. Therefore, once the spiral spring explodes during the packing process, it will affect personal safety.

[0003] Therefore, in view of the above shortcomings, the present invention is proposed. Summary of the invention

[0004] The object of the present invention is to provide a planar spiral spring coiling and boxing device to solve the problems of low efficiency, high defect rate and poor safety caused by manual boxing of spiral springs in the prior art.

[0005] The present invention provides a planar spiral spring coiling and boxing device, comprising:

[0006] A workbench, wherein the workbench is provided with a through hole and a positioning block arranged around the through hole;

[0007] An ejection assembly, comprising an ejection block and an ejection drive unit connected to each other, wherein the ejection block is inserted into the through hole and can move axially along the through hole under the drive of the ejection drive unit;

[0008] A winding assembly, comprising an insert block and a winding drive unit connected to each other, wherein the insert block is inserted into the top block and one end thereof extends into the through hole, and the insert block can rotate under the drive of the winding drive unit;

[0009] The press box assembly comprises a press block suspended on a workbench and a press box driving unit, wherein the press box driving unit can drive the press block to approach or move away from the workbench;

[0010] The insert block can be connected to the coil spring placed in the through hole and the coil spring can be tightened under the drive of the tightening drive unit. The box pressing assembly can press the box body placed on the positioning block, and the ejection assembly can push the tightened coil spring into the box body.

[0011] The planar spiral spring coiling and boxing device provided by the present invention may also have the following additional technical features:

[0012] In a specific embodiment of the present invention, it also includes a capping assembly, which includes a capping drive unit arranged on the workbench and a cover plate connected to the capping drive unit, and the cover plate is used to cap or open the through hole under the drive of the capping drive unit.

[0013] In a specific embodiment of the present invention, the cover assembly further includes a slide rail disposed on the workbench and a slider slidably mounted on the slide rail, the slide rail is parallel to the driving direction of the cover driving unit, and the cover plate is connected to the slider.

[0014] In a specific embodiment of the present invention, a notch is provided in the circumference of the positioning block, and the end of the positioning block used to form the notch is used to fit and position with the end hook of the coil spring.

[0015] In a specific embodiment of the present invention, a positioning assembly is further included, which includes a stop block and a positioning drive unit connected to each other. The stop block is set corresponding to the notch and can be moved under the drive of the positioning drive unit to cooperate with the positioning block to clamp the end hook of the coil spring.

[0016] In a specific embodiment of the present invention, the top block includes a column and a protrusion disposed on the outer periphery of the column and extending along the axial direction thereof, and the through hole and the positioning block are adapted to the top block.

[0017] In a specific embodiment of the present invention, the ejection assembly also includes a top plate, the ejection block is arranged on one side of the top plate, the tightening drive unit is arranged on the other side of the top plate, and the orthographic projection of the ejection block at least partially overlaps with the tightening drive unit; the ejection drive units are two and are arranged on both sides of the tightening drive unit.

[0018] In a specific embodiment of the present invention, a plurality of positioning nuts are further provided on the outer periphery of the top plate, and the positioning nuts are suitable for stopping with the workbench to limit the top block.

[0019] In a specific embodiment of the present invention, the box pressing assembly further comprises an adsorption unit and a positioning unit, and both the adsorption unit and the positioning unit are connected to the pressing block and are suitable for positioning and adsorbing the box body.

[0020] In a specific embodiment of the present invention, a controller is further included, and the controller is electrically connected to the coiling assembly, the box pressing assembly and the ejection assembly respectively.

[0021] The coiling and boxing device provided by the present invention can cooperate with the through hole and the positioning block in the ejection assembly to form a station for placing the coil spring, and the coil spring can be coiled by connecting the plug block with the head end hook of the coil spring, the positioning block with the end hook of the coil spring and driving the plug block to rotate, so as to reduce the diameter of the coil spring, and then the box body placed on the positioning block is pressed by the box pressing assembly, and then the ejection drive unit drives the ejection block to lift the coil spring to one side of the box body, so that the coil spring is loaded into the box body. The coiling and boxing device provided by the present invention can replace manual coiling and boxing, which not only greatly improves the coiling and boxing efficiency and improves the yield rate of the coil spring, but also greatly reduces the risk of personal injury caused by manual coiling and boxing. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] In order to more clearly illustrate the specific implementation methods of the present invention or the technical solutions in the prior art, the drawings required for use in the specific implementation methods or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some implementation methods of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0023] Figure 1 It is a schematic diagram of the three-dimensional structure of the compacting and box-packing device in an embodiment of the present invention;

[0024] Figure 2 for Figure 1 A magnified view of the structure in the middle;

[0025] Figure 3 It is a schematic diagram of the combined structure of the coiling assembly and the jacking assembly;

[0026] Figure 4 It is a structural schematic diagram of the top block and the positioning block.

[0027] Description of reference numerals:

[0028] 100-tightening cartoning device;

[0029] 10-working table, 11-positioning block, 12-notch;

[0030] 20- ejector assembly, 21- ejector block, 22- ejector drive unit, 23- ejector plate, 24- positioning nut;

[0031] 30-tightening assembly, 31-insertion block, 32-tightening drive unit;

[0032] 40-pressing box assembly, 41-pressing block, 42-pressing box driving unit;

[0033] 50- gland assembly, 51- cover plate, 52- gland drive unit, 53- slide rail, 54- slide block;

[0034] 60-positioning assembly, 61-stop block, 62-positioning drive unit;

[0035] 70-controller, 80-coil spring, 90-box body. DETAILED DESCRIPTION

[0036] The exemplary embodiments of the present invention will be described in more detail below with reference to the accompanying drawings. Although the exemplary embodiments of the present invention are shown in the accompanying drawings, it should be understood that the present invention can be implemented in various forms and should not be limited by the embodiments described herein. On the contrary, these embodiments are provided in order to enable a more thorough understanding of the present invention and to fully convey the scope of the present invention to those skilled in the art.

[0037] It should be understood that the terms used herein are only for the purpose of describing specific example embodiments and are not intended to be limiting. Unless the context clearly indicates otherwise, the singular forms "one", "an" and "said" as used herein may also be meant to include plural forms. The terms "include", "comprise", "contain", and "have" are inclusive, and therefore specify the existence of stated features, steps, operations, elements and / or parts, but do not exclude the existence or addition of one or more other features, steps, operations, elements, parts, and / or combinations thereof. The method steps, processes, and operations described herein are not interpreted as necessarily requiring them to be performed in the specific order described or illustrated, unless the execution order is clearly indicated. It should also be understood that additional or alternative steps may be used.

[0038] Although the terms first, second, third, etc. can be used in the text to describe multiple elements, components, regions, layers and / or sections, these elements, components, regions, layers and / or sections should not be limited by these terms. These terms can only be used to distinguish an element, component, region, layer or section from another region, layer or section. Unless the context clearly indicates, terms such as "first", "second" and other numerical terms do not imply order or sequence when used in the text. Therefore, the first element, component, region, layer or section discussed below can be referred to as the second element, component, region, layer or section without departing from the teaching of the example embodiments.

[0039] For ease of description, spatial relative terms may be used herein to describe the relationship of one element or feature relative to another element or feature as shown in the figure, such as "inside", "outside", "inner side", "outer side", "below", "below", "above", "above", etc. Such spatial relative terms are intended to include different orientations of the device in use or operation in addition to the orientation depicted in the figure. For example, if the device in the figure is turned over, then the elements described as "below other elements or features" or "below other elements or features" will subsequently be oriented as "above other elements or features" or "above other elements or features". Therefore, the example term "below..." can include both upper and lower orientations. The device can be oriented otherwise (rotated 90 degrees or in other directions) and the spatial relative descriptors used in the text are interpreted accordingly.

[0040] Reference Figure 1-4 The present invention provides a planar spiral spring coiling and boxing device 100, comprising a workbench 10, an ejection assembly 20, a coiling assembly 30 and a box pressing assembly 40, wherein the workbench 10 is provided with a through hole and a positioning block 11 arranged around the through hole; the ejection assembly 20 comprises a connected ejection block 21 and an ejection driving unit 22, the ejection block 21 is plugged into the through hole and can move axially along the through hole under the drive of the ejection driving unit 22; the coiling assembly 30 comprises a connected insertion block 31 and a coiling driving unit 32, the insertion block 31 is inserted into the ejection block 21 , and one end extends into the through hole, and the insert block 31 can rotate under the drive of the tightening drive unit 32; the press box assembly 40 includes a press block 41 and a press box drive unit 42 suspended on the workbench 10, and the press box drive unit 42 can drive the press block 41 to move closer to or away from the workbench 10; wherein the insert block 31 can be connected to the coil spring 80 placed in the through hole and tighten the coil spring 80 under the drive of the tightening drive unit 32, the press box assembly 40 can tighten the box body 90 placed on the positioning block 11, and the ejection assembly 20 can push the tightened coil spring 80 into the box body 90.

[0041] The planar volute spring (hereinafter referred to as coil spring 80) is processed and formed into a spirally wound structure, which has a head end hook located in the center and an end hook located at the periphery. Normally, it is necessary to fix the end hook and tighten it by rotating the head end hook, thereby reducing the diameter of the coil spring 80 for easy boxing.

[0042] In this embodiment, the workbench 10 is a flat plate structure, and a through hole is provided thereon in the thickness direction thereof. The positioning block 11 is formed into a closed or non-closed annular structure with a center hole diameter not less than the diameter of the through hole, and is fixed to the workbench 10 in a manner that the center hole corresponds to the through hole, and is suitable for forming a station suitable for defining the coil spring 80 together with the through hole, and is also used for positioning with the end hook of the coil spring 80.

[0043] The ejection block 21 in the ejection assembly 20 is inserted into the through hole, so that the bottom surface of the work station can be formed for placing the coil spring 80 , and the coil spring 80 can be ejected and loaded into the box body 90 under the drive of the ejection drive unit 22 .

[0044] The insert block 31 in the tightening assembly 30 is inserted into the top block 21, and the end portion extends into and is located in the through hole, and is provided with a notch for cooperating with the head end hook of the coil spring 80, so that it can be connected with the head end hook of the coil spring 80 and rotated under the action of the tightening drive unit 32 to tighten the coil spring 80.

[0045] The pressing block 41 in the box pressing assembly 40 cooperates with the box pressing driving unit 42 to press the box body 90 , thereby facilitating the ejection assembly 20 to push the coiled spring 80 into the box body 90 .

[0046] The coiling and boxing device 100 provided by the present invention can cooperate with the through hole and the positioning block 11 through the ejection assembly 20 to form a station for placing the coil spring 80, and the coil spring 80 can be coiled by connecting the plug block 31 with the head end hook of the coil spring 80, the positioning block 11 with the end hook of the coil spring 80, and driving the plug block 31 to rotate, so as to reduce the diameter of the coil spring 80, and then the box body 90 placed on the positioning block 11 is pressed by the box pressing assembly 40, and then the ejection drive unit 22 drives the ejection block 21 to push the coil spring 80 toward one side of the box body 90, so that the coil spring 80 is loaded into the box body 90. The coiling and boxing device 100 provided by the present invention can replace manual coiling and boxing, which not only greatly improves the coiling and boxing efficiency of the coil spring 80 and improves the yield rate, but also greatly reduces the risk of personal injury caused by manual coiling and boxing.

[0047] In one embodiment, a capping assembly 50 is further included. The capping assembly 50 includes a capping drive unit 52 disposed on the workbench 10 and a cover plate 51 connected to the capping drive unit 52. The cover plate 51 is used to cap or open the through hole under the drive of the capping drive unit 52.

[0048] Specifically, the cover assembly 50 can be used to cover the through hole after the coil spring 80 is placed in the work station, and open the through hole before the box body 90 is placed on the positioning block 11. In this way, the reel winding process can be carried out in a relatively closed environment, thereby preventing the coil spring 80 from jumping out of the positioning block 11 and exploding during the winding process, thereby not only reducing the safety risk of the winding and boxing device 100, but also further improving the boxing yield.

[0049] In one embodiment, the capping assembly 50 further includes a slide rail 53 disposed on the workbench 10 and a slider 54 slidably mounted on the slide rail 53 , the slide rail 53 is parallel to the driving direction of the capping driving unit 52 , and the cover plate 51 is connected to the slider 54 .

[0050] Specifically, the slide rail 53 is a strip structure with an I-shaped cross section, which is fixedly installed on the workbench 10, and the length direction is parallel to the driving direction of the cover driving unit 52. The slider 54 is a cubic structure, and one side has a through groove adapted to the cross section of the slide rail 53. The cover plate 51 is arranged in a Z shape, and its two connected side surfaces are respectively connected to the top surface and the side surface of the slider 54, and the other side surface is arranged parallel to the workbench 10, and its end away from the positioning block 11 is connected to the cover driving unit 52, and its side surface is connected to the slider 54, so that under the drive of the cover driving unit 52, the cover plate 51 can drive the slider 54 to move on the slide rail 53, and due to the mutual limitation of the pressure rod driving unit and the slide rail 53 and the slider 54, the cover plate 51 can have at least two connection points, so it has higher stability, and can further limit the coil spring 80 to the work station.

[0051] Further, the cover driving unit 52 is a combination of an air cylinder, an oil cylinder or a driving motor and a lead screw slider 54. Preferably, in this embodiment, the pressure rod driving unit is an air cylinder.

[0052] In one embodiment, a notch 12 is provided in the circumference of the positioning block 11 , and the end of the positioning block 11 used to form the notch 12 is used to fit and position with the end hook of the coil spring 80 .

[0053] In this way, when the insert block 31 cooperates with the hook at the head end of the coil spring 80 and drives the coil spring 80 to rotate, the tail end of the coil spring 80 will rotate synchronously until it rotates to the position of the notch 12 and is adapted and fixed to the end used to form the notch 12.

[0054] In this embodiment, the notch 12 is provided on the positioning block 11 to fix the end hook of the coil spring 80 at a predetermined position, which is convenient for the subsequent positioning of the box body 90 and further convenient for box loading.

[0055] Of course, in other embodiments, the positioning block 11 can also be formed into a closed ring, and ratchets can be provided on its inner wall to achieve positioning with the end hook of the coil spring 80. The number of ratchets can be multiple, preferably, the number of ratchets is one, so that the accurate positioning of the end hook of the coil spring 80 can also be achieved.

[0056] In one embodiment, a positioning assembly 60 is further included, and the positioning assembly 60 includes a stop block 61 and a positioning drive unit 62 connected to each other. The stop block 61 is set corresponding to the notch 12 and can be moved under the drive of the positioning drive unit 62 to cooperate with the positioning block 11 to clamp the end hook of the coil spring 80.

[0057] Specifically, by setting the stop block 61 and the positioning drive unit 62, the stop block 61 can cooperate with the positioning block 11 to achieve the compression of the bent hook at the end of the coil spring 80, thereby further preventing the coil spring 80 from exploding, thereby reducing the error rate of the winding and boxing device 100 and ensuring the boxing yield.

[0058] Further, the positioning drive unit 62 is a combination of an air cylinder, an oil cylinder or a drive motor and a lead screw slider 54. Preferably, in this embodiment, the positioning drive unit 62 is an air cylinder.

[0059] In one embodiment, the top block 21 includes a column and a protrusion disposed on the outer periphery of the column and extending along the axial direction thereof, and the through hole and the positioning block 11 are adapted to the top block 21 .

[0060] Specifically, the column is a cylinder, and the number of protrusions is multiple and evenly distributed on the outer circumference of the column, and the end of the protrusion away from the jacking drive unit extends to the end face of the column. The center hole and the through hole of the positioning block 11 are both circular, and the size is slightly larger than the size of the main body, so as to be compatible with the main body, and the inner wall of the center hole and the through hole of the positioning block 11 is also provided with a groove adapted to the protrusion, so that when the column is reciprocated in the through hole and the center hole of the positioning block 11, the protrusion can be inserted in the corresponding groove.

[0061] In this embodiment, a protrusion is provided on the outer side of the column of the ejector block 21, so that the maximum outer diameter of the ejector block 21 can be larger than the inner diameter of the through hole, that is, larger than the size of the coil spring 80. This can ensure the success of the coil spring 80. At the same time, since the size of the column is slightly smaller than the size of the through hole, there is a gap between the two to ensure that the ejection process is smooth and there will be no jamming.

[0062] In one embodiment, the ejection assembly 20 also includes a top plate 23, a top block 21 is arranged on one side of the top plate 23, a tightening drive unit 32 is arranged on the other side of the top plate 23, and the orthographic projection of the top block 21 at least partially overlaps with the tightening drive unit 32; there are two ejection drive units 22, which are arranged on both sides of the tightening drive unit 32.

[0063] Specifically, the top plate 23 is a flat plate and is arranged parallel to the workbench 10. The top block 21 is arranged on one side of the top plate 23, and the winding drive unit 32 and the ejection drive unit 22 are arranged on the other side of the workbench 10. The winding drive unit 32 and the top block 21 have an orthographic projection that coincides, so it is convenient to drive the plug-in block 31 inserted in the top block 21. The ejection drive unit 22 is arranged on both sides of the winding drive unit 32, so that the balance of the top plate 23 can be ensured, and then the balance of the top block 21 can be ensured.

[0064] In one embodiment, a plurality of positioning nuts 24 are further provided on the outer periphery of the top plate 23, and the positioning nuts 24 are adapted to stop with the workbench 10 to limit the position of the top block 21. By providing the positioning nuts 24 to limit the position of the top plate 23, the position of the top block 21 provided on the top plate 23 is further limited, thereby avoiding excessive lifting to damage the coil spring 80 and the box body 90.

[0065] In one embodiment, the winding drive unit 32 is a stepping motor, and the ejection drive unit 22 is a cylinder. Of course, in other embodiments, the winding drive unit 32 can also be a motor, and the ejection drive unit 22 can also be a combination of an oil cylinder or a screw slider 54 and a motor.

[0066] In one embodiment, the box pressing assembly 40 further includes an adsorption unit and a positioning unit, both of which are connected to the pressing block 41 and are suitable for positioning and adsorbing the box body 90. In this way, the box pressing assembly 40 can have the ability to position the box body 90 and adsorb the box body 90, and cooperate with the six-axis manipulator formed as the box pressing driving unit 42 to achieve the ability of accurately positioning, adsorbing, transporting, pressing and transferring the box body 90 again after boxing, thereby further improving the automation rate of the compacting box loading device 100 and improving the efficiency of the compacting box loading device 100.

[0067] Of course, in other embodiments, the box pressing assembly 40 may only have the ability to apply pressure to the box body 90. In this case, the box pressing drive unit 42 is a cylinder, which can drive the pressing block 41 to move toward the box body 90 to press the box body 90 after the box body 90 is placed on the positioning block 11.

[0068] In one embodiment, a controller 70 is further included, and the controller 70 is electrically connected to the coiling assembly 30, the box pressing assembly 40, and the ejection assembly 20. Specifically, the controller 70 is electrically connected to the coiling drive unit 32, the box pressing drive unit 42, the ejection drive unit 22, the capping drive unit 52, and the positioning drive unit 62, respectively, so that precise control of the above structure can be achieved.

[0069] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or replace some or all of the technical features therein with equivalents. However, these modifications or replacements do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of the present invention.

Claims

1. A coiling and boxing device for a planar spiral spring, characterized in that: include: A workbench, wherein the workbench is provided with a through hole and a positioning block arranged around the through hole; An ejection assembly, comprising an ejection block and an ejection drive unit connected to each other, wherein the ejection block is inserted into the through hole and can move axially along the through hole under the drive of the ejection drive unit; A winding assembly, comprising an insert block and a winding drive unit connected to each other, wherein the insert block is inserted into the top block and one end thereof extends into the through hole, and the insert block can rotate under the drive of the winding drive unit; A press box assembly, comprising a press block suspended on a workbench and a press box driving unit, wherein the press box driving unit can drive the press block to approach or move away from the workbench; in The insert block can be connected to the coil spring placed in the through hole and the coil spring can be tightened under the drive of the tightening drive unit. The box pressing assembly can press the box body placed on the positioning block, and the ejection assembly can push the tightened coil spring into the box body.

2. The coiling and boxing device for a planar spiral spring according to claim 1, characterized in that: It also includes a capping assembly, which includes a capping drive unit arranged on the workbench and a cover plate connected to the capping drive unit, and the cover plate is used for capping or opening the through hole under the drive of the capping drive unit.

3. The coiling and boxing device for a planar spiral spring according to claim 2, characterized in that: The capping assembly further comprises a slide rail arranged on the workbench and a slider slidably mounted on the slide rail, the slide rail is parallel to the driving direction of the capping driving unit, and the cover plate is connected to the slider.

4. The coiling and boxing device for a planar spiral spring according to claim 1, characterized in that: A notch is arranged in the circumference of the positioning block, and the end of the positioning block used to form the notch is used to fit and position with the end hook of the coil spring.

5. The coiling and boxing device for a planar spiral spring according to claim 4, characterized in that: It also includes a positioning component, which includes a stop block and a positioning drive unit connected to each other. The stop block is set corresponding to the notch and can be moved under the drive of the positioning drive unit to cooperate with the positioning block to clamp the end hook of the coil spring.

6. The coiling and boxing device for a planar spiral spring according to claim 1, characterized in that: The top block comprises a column and a protrusion which is arranged on the outer periphery of the column and extends along the axial direction thereof, and the through hole and the positioning block are adapted to the top block.

7. The coiling and boxing device for a planar spiral spring according to claim 1, characterized in that: The ejection assembly also includes a top plate, the ejection block is arranged on one side of the top plate, the tightening drive unit is arranged on the other side of the top plate, and the orthographic projection of the ejection block at least partially overlaps with the tightening drive unit; there are two ejection drive units, which are arranged on both sides of the tightening drive unit.

8. The planar spiral spring coiling and boxing device according to claim 7, characterized in that: The outer periphery of the top plate is also provided with a plurality of positioning nuts, and the positioning nuts are suitable for being stopped with the workbench to limit the position of the top block.

9. The planar spiral spring coiling and boxing device according to claim 1, characterized in that: The box pressing assembly further comprises an adsorption unit and a positioning unit, wherein both the adsorption unit and the positioning unit are connected to the pressing block and are suitable for positioning and adsorbing the box body.

10. The planar spiral spring coiling and boxing device according to claim 1, characterized in that: It also includes a controller, which is electrically connected to the coiling assembly, the box pressing assembly and the ejecting assembly respectively.

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