Active feeding hopper, bar feeding device with hanging head and feeding method

Abstract

The present invention discloses an active feeding hopper, a feeding device for bars with hanging heads and a feeding method. The hopper includes a hopper, a collecting wheel and a first driving mechanism. The collecting wheel is connected to the first driving mechanism. The hopper includes a dropping area, a collecting area and an inclined surface. The inclined surface is arranged between the dropping area and the collecting area. The inclined surface is higher on one side of the dropping area than on one side of the collecting area. The lower edge of the collecting wheel is arranged on the edge of the inclined surface on one side of the collecting area. A plurality of blades are arranged on the collecting wheel. The feeding device for bars with hanging heads includes a conveying mechanism and the above-mentioned hopper. One end of the conveying mechanism is arranged on the dropping area inside the hopper, and the other end is arranged on the outside of the hopper. A baffle is arranged between the dropping area and the outside of the hopper. The beneficial effect of the present invention is that the function of the turntable to stir the bars with hanging heads is weakened, which greatly reduces the difficulty of the turntable structure design. At the same time, the requirements for the driving mechanism are reduced, and maintenance is convenient. It is suitable for various sizes and types of bars with hanging heads to be sucked in and retained on the suction hole.

Description

Technical Field

[0001] The present invention belongs to the technical field of material conveying, and in particular relates to an active feeding device and a feeding method which sucks and holds rods with hanging heads such as screws and rivets in a suction hole arranged on a turntable, and conveys the rods with hanging heads to a predetermined removal position for removal by a nail removal mechanism through the rotation of the turntable. Background Art

[0002] The assembly of screws has evolved from traditional manual tightening to today's automatic screw machines, and the work efficiency has been improved hundreds or thousands of times. Automatic screw machines include screw arranging machines, screw arranging machines, screw feeders, etc., and their main function is to transport screws to a predetermined nail removal position. In the prior art, a separation and supply device for headed rods is provided, which has: a hopper part that can store many headed rods such as screws; a separation plate arranged at the bottom of the hopper part, which can be horizontal to inclined at a predetermined angle and can rotate freely, and a plurality of support holes for headed rods can be evenly arranged at an outer circumference thereof, and an air intake hole for sucking air from the support hole of the separation plate. The separation plate is driven by a motor to rotate intermittently according to the arrangement spacing of each support hole. In addition, there are two air intake holes, one is an air intake hole for sucking air when the support hole of the separation plate is located near the lowest position, and the other is an air intake hole for sucking air when the support hole is located at the highest position. Furthermore, air is sucked in from the support hole near the lowest position, and the rods with heads stored in the hopper section are sucked and held in the support hole. In addition, by sucking in air from the support hole at the highest position, the pressure change in the air suction path can be confirmed, thereby confirming whether the rods with heads are held in the support hole. If the rods with heads are held in the support hole at this highest position, once the drive of the motor stops, the intermittent rotation of the separation plate stops. Furthermore, the rods with heads held in the support hole at the highest position are taken out by a removal machine such as a screwdriver. The disadvantage is that the rods with heads are passively stirred and sucked in the hopper section by the rotation and suction of the separation plate, resulting in poor stirring uniformity and a low success rate of nail suction, which affects the nail removal mechanism and the rhythm of subsequent production. Summary of the invention

[0003] 1. Technical issues to be solved

[0004] In view of the problems in the prior art that the rods with hanging heads are passively stirred and sucked in the hopper part by relying on the rotation and attraction of the separation plate, resulting in poor stirring uniformity and low success rate of nail suction, which affects the nail removal mechanism and the rhythm of subsequent production, the purpose of the present invention is to provide an active feeding hopper, a feeding device and a feeding method for rods with hanging heads, which have a compact structure, stable operation and high work efficiency.

[0005] It should be noted that the "rods with heads" and "stepped shaft parts" that appear in the prior art have the same meaning as the "rods with hanging heads" mentioned in the present invention, namely, parts such as screws and rivets.

[0006] 2. Technical solution

[0007] To achieve the above object, the present invention adopts the following technical solution:

[0008] A hopper for active feeding is characterized by comprising a hopper, a gathering wheel and a first driving mechanism, wherein the gathering wheel is connected to the first driving mechanism, the hopper comprises a dropping area, a gathering area and an inclined surface, wherein the inclined surface is arranged between the dropping area and the gathering area, and the inclined surface is higher on one side of the dropping area than on one side of the gathering area; the circumferential lower edge of the gathering wheel is arranged on the lowest edge of the inclined surface on one side of the gathering area; and a plurality of blades are arranged on the gathering wheel.

[0009] Furthermore, the blades are arranged on the circumferential inner wall of the aggregate wheel.

[0010] Furthermore, the hopper also includes a feeding slide, one end of which is arranged on one side of the aggregate wheel, and the other end is arranged above the drop zone, and the end of the feeding slide arranged on one side of the aggregate wheel is higher than the end arranged above the drop zone.

[0011] An active feeding device for bar materials with a hanging head is characterized in that it includes a conveying mechanism and the above-mentioned hopper, a baffle is arranged on the hopper, and the baffle separates the conveying mechanism into an inner part of the hopper and an outer part of the hopper, and the inner part of the hopper is arranged in a material dropping area; the conveying mechanism includes a driving mechanism, and the conversion of the inner and outer positions of the hopper is realized by the driving of the driving mechanism.

[0012] Furthermore, the conveying mechanism includes a base, a turntable and a second driving mechanism, the turntable is arranged on the base at a horizontal to inclined predetermined angle, the turntable is connected to the second driving mechanism through a rotating shaft, and the turntable is provided with a plurality of supporting holes that can fit the rods with hanging heads at equal intervals along the circumference; the turntable is divided into an inner part of the hopper and an outer part of the hopper by a baffle, and the inner part of the hopper is arranged in the material dropping area; an air suction hole for sucking air from the supporting hole of the turntable is arranged on the base below the inner part of the hopper, and the air suction hole is connected to a vacuum device, and the air suction hole is arranged in an annular groove of the base.

[0013] Furthermore, one end of the feeding slide is arranged on one side of the gathering wheel, and the other end is arranged above the turntable. The end of the feeding slide arranged on one side of the gathering wheel is higher than the end arranged above the turntable; a return channel is arranged between the end above the turntable and the turntable.

[0014] Furthermore, the turntable is provided with a suction confirmation position at the outer side of the hopper, and a suction confirmation mechanism is provided at the suction confirmation position.

[0015] Furthermore, the suction confirmation mechanism is one or more of a through-beam sensor, a reflective sensor, and a pressure detection mechanism; the through-beam sensor is included on both sides of the suction confirmation position to detect the head of the rod with a hanging head, and the reference plane for detection is the upper surface of the supporting hole; the reflective sensor is included on a base arranged at the lower part of the turntable corresponding to the supporting hole; the pressure detection mechanism includes an air suction hole arranged on the base, and by sucking air from the supporting hole, the pressure change in the air suction path can be confirmed to confirm whether the rod with a hanging head is maintained in the supporting hole.

[0016] A feeding method for rods with heads, characterized in that the rods with heads are transported from a low place to a high place, and in the process of transporting from a high place to a low place, the rods with heads fall onto a conveying mechanism, and some of the rods with heads are picked up by the conveying mechanism in a specific posture, and the picked up rods with heads are transported by the conveying mechanism; the rods with heads that are not picked up fall to a low place and the above action is repeated.

[0017] Furthermore, the conveying mechanism includes a base, a turntable and a second driving mechanism, the turntable is arranged on the base at a horizontal to inclined predetermined angle, the turntable is connected to the second driving mechanism through a rotating shaft, and the turntable is provided with a number of supporting holes that can fit the rods with hanging heads at equal intervals along the circumference; the turntable is divided into an inner part of the hopper and an outer part of the hopper by a baffle, and the inner part of the hopper is arranged in a dropping area; an air suction hole for sucking air from the supporting hole of the turntable is arranged on the base below the inner part of the hopper, and the air suction hole is connected to a vacuum device, and the air suction hole is arranged in an annular groove of the base; the vacuum device provides negative pressure for the air suction hole and the supporting hole, and the rods with hanging heads are sucked by the supporting hole during the falling process, the rod body is inserted into the supporting hole, the head is supported by the turntable outside the supporting hole, and the turntable is driven to rotate by the second driving mechanism to realize the conveying of the rods with hanging heads.

[0018] 3. Beneficial effects

[0019] Compared with the prior art, the present invention has the following beneficial effects:

[0020] 1. The present invention increases the circulation rate of the bars with hanging heads in the hopper by arranging a collecting wheel inside the hopper, and greatly increases the probability of each bar with hanging heads being successfully attracted.

[0021] 2. The present invention provides a material-collecting wheel, so that the function of the turntable in stirring the bars with hanging heads is weakened, which greatly reduces the difficulty of the turntable structure design, and at the same time reduces the requirements for the driving mechanism, making maintenance easier.

[0022] 3. The present invention is provided with a feeding slide to overcome the size limitation between the collecting wheel and the turntable. At the same time, the feeding slide makes the rods with hanging heads falling thereon evenly distributed on each supporting hole in the drop area in a planar shape, avoiding the linear and concentrated falling of the rods with hanging heads above a certain supporting hole, thereby improving the suction probability and high feeding efficiency.

[0023] 4. The present invention works stably and is suitable for sucking and holding various sizes and types of rods with hanging heads on the supporting holes, so as to efficiently feed the subsequent taking-out mechanism to the taking-out position. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] In order to more clearly illustrate the specific implementation methods of the 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 invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0025] Figure 1 It is a schematic diagram of the three-dimensional structure of an embodiment of the present invention.

[0026] Figure 2 It is a schematic diagram of the main structure of an embodiment of the present invention.

[0027] Figure 3 It is a schematic diagram of the main cross-sectional structure of an embodiment of the present invention.

[0028] Figure 4 It is a schematic diagram of the right side cross-sectional structure of an embodiment of the present invention.

[0029] In the figure: 1- silo 2- material collection wheel 3- material dropping area 4- material collection area 5- inclined surface 6- blade 7- feeding slide 8- outside of hopper 9- baffle 10- base 11- turntable 12- second driving mechanism 13- rotating shaft 14- supporting hole 15- annular groove 16- opposite shooting sensor 17- rod with hanging head. DETAILED DESCRIPTION

[0030] The technical solution of the invention will be described clearly and completely below in conjunction with the accompanying drawings. Obviously, the described embodiments are part of the embodiments of the invention, not all of them. Based on the embodiments of the invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the invention.

[0031] In the description of the invention, it should be noted that the terms "center", "up", "down", "left", "right", "vertical", "horizontal", "inside" and "outside" etc. indicating directions or positional relationships are based on the directions or positional relationships shown in the accompanying drawings. They are only for the convenience of describing the invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction. Therefore, they cannot be understood as limitations on the invention.

[0032] In the description of the invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the invention can be understood according to specific circumstances.

[0033] Example 1

[0034] A feeding method for rods 17 with heads, characterized in that the rods 17 with heads are transported from a low place to a high place, and in the process of transporting from a high place to a low place, the rods 17 with heads fall onto a conveying mechanism, and some of the rods 17 with heads are picked up by the conveying mechanism in a specific posture, and the picked up rods 17 with heads are transported by the conveying mechanism; the rods 17 with heads that are not picked up fall to a low place and the above action is repeated.

[0035] In order to realize the feeding of the above-mentioned rods 17 with hanging heads, the present embodiment also provides a specific implementation of the above-mentioned conveying mechanism, which includes a base 10, a turntable 11 and a second driving mechanism 12. The turntable 11 is arranged on the base 10 from horizontal to a predetermined angle of inclination. The turntable 11 is connected to the second driving mechanism 12 through a rotating shaft 13. The turntable 11 is provided with a plurality of supporting holes 14 that can fit the rods 17 with hanging heads at equal intervals along the circumferential direction; the turntable 11 is divided into an inner part of the hopper and an outer part of the hopper 8 by a baffle plate 9, and the inner part of the hopper is provided with a plurality of supporting holes 14 that can fit the rods 17 with hanging heads. It is placed in the material dropping area 3; an air suction hole for sucking air from the supporting hole 14 of the turntable 11 is arranged on the base 10 below the inner part of the hopper, and the air suction hole is connected to the vacuum device, and the air suction hole is arranged in the annular groove 15 of the base 10; the vacuum device provides negative pressure for the air suction hole and the supporting hole 14, and the rod 17 with a hanging head is attracted by the supporting hole 14 during the falling process, and the rod body is inserted into the supporting hole 14, and the head is supported by the turntable 11 outside the supporting hole 14, and the turntable 11 is driven to rotate by the second driving mechanism 12 to realize the transportation of the rod 17 with a hanging head.

[0036] Example 2

[0037] like Figures 1 to 4As shown, in order to realize the feeding of the rods 17 with hanging heads in Example 1, and to realize the purpose of conveying the rods 17 with hanging heads from a low place to a high place, and causing the rods 17 with hanging heads to fall onto the conveying mechanism during the conveying process from a high place to a low place, this embodiment provides an active feeding hopper, which is characterized by comprising a silo 1, a gathering wheel 2 and a first driving mechanism, the gathering wheel 2 is connected to the first driving mechanism, the silo 1 comprises a dropping area 3, a gathering area 4 and an inclined surface 5, the inclined surface 5 is arranged between the dropping area 3 and the gathering area 4, the inclined surface 5 on one side of the dropping area 3 is higher than that on the one side of the gathering area 4; the gathering wheel 2 is arranged vertically in the hopper at a predetermined angle; the lower edge of the circumference of the gathering wheel 2 is arranged at the lowest edge of the inclined surface 5 on one side of the gathering area 4; a plurality of blades 6 are arranged on the gathering wheel 2; the inclined surface 5 is an arc-shaped inclined surface.

[0038] The blades 6 are arranged on the circumferential inner wall of the gathering wheel 2 .

[0039] The hopper also includes a feeding slide 7, one end of which is arranged on one side of the gathering wheel 2, and the other end is arranged above the drop zone 3, and the end of the feeding slide 7 arranged on one side of the gathering wheel 2 is higher than the end arranged above the drop zone 3.

[0040] Example 3

[0041] like Figures 1 to 4 As shown, on the basis of the above-mentioned embodiment, there is provided a feeding device for rods 17 with hanging heads that actively feeds the materials, which is characterized in that it includes a conveying mechanism and the hopper described in Example 2, a baffle 9 is arranged on the hopper, and the baffle 9 separates the conveying mechanism into an inner part of the hopper and an outer part 8 of the hopper, and the inner part of the hopper is arranged in the dropping area 3; the conveying mechanism includes a driving mechanism, and the conversion of the inner and outer positions of the hopper is realized by the driving of the driving mechanism.

[0042] The conveying mechanism includes a base 10, a turntable 11 and a second driving mechanism 12. The turntable 11 is arranged on the base 10 at a horizontal to predetermined inclined angle. The turntable 11 is connected to the second driving mechanism 12 through a rotating shaft 13. The turntable 11 is provided with a plurality of supporting holes 14 that can fit the rods 17 with hanging heads at equal intervals along the circumferential direction; the turntable 11 is divided into an inner part of the hopper and an outer part 8 of the hopper by a baffle 9, and the inner part of the hopper is arranged in the blanking area 3; an air suction hole (not shown in the figure, its position can be determined by referring to the position of the annular groove 15) for sucking air from the supporting hole 14 of the turntable 11 is arranged on the base 10 below the inner part of the hopper, and the air suction hole is connected to a vacuum device, and the air suction hole is arranged in the annular groove 15 of the base 10.

[0043] One end of the feeding slide 7 is arranged on one side of the gathering wheel 2, and the other end is arranged above the turntable 11. The end of the feeding slide 7 arranged on one side of the gathering wheel 2 is higher than the end arranged above the turntable 11; a return channel is arranged between the end above the turntable 11 and the turntable 11.

[0044] The rotating disk 11 is provided with a suction confirmation position at the outer side 8 of the hopper, and a suction confirmation mechanism is provided at the suction confirmation position.

[0045] The suction confirmation mechanism is one or more of a through-beam sensor 16, a reflective sensor, and a pressure detection mechanism; the through-beam sensor 16 is included on both sides of the suction confirmation position to detect the head of the rod 17 with a hanging head, and the reference plane for detection is the upper surface of the supporting hole 14; the reflective sensor is included on a base 10 arranged at the lower part of the turntable 11 corresponding to the supporting hole 14; the pressure detection mechanism includes an air suction hole (not shown in the figure) arranged on the base 10, which corresponds to the supporting hole 14 and is connected to a vacuum device. By sucking air from the supporting hole 14, the pressure change in the air suction path can be confirmed to confirm whether the rod 17 with a hanging head is maintained in the supporting hole 14.

[0046] The components involved in Examples 1 to 3 are connected and automatically controlled by a host computer controller. Taking Example 3 as an example, the first drive mechanism, the second drive mechanism 12, the vacuum device, the suction confirmation mechanism, etc. are all connected to the host computer controller, and its operating principle is based on the feeding method shown in Example 1.

[0047] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, the elements defined by the sentence "comprise a ..." do not exclude the existence of other identical elements in the process, method, article or device including the elements.

[0048] The above description of the disclosed embodiments enables one skilled in the art to implement or use the present invention. Various modifications to these embodiments will be apparent to one skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention will not be limited to the embodiments shown herein, but rather to the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. An active feeding device for bar materials with a hanging head, characterized in that: The conveying mechanism comprises a conveying mechanism and a hopper, wherein a baffle is arranged on the hopper, and the baffle separates the conveying mechanism into an inner part of the hopper and an outer part of the hopper, and the inner part of the hopper is arranged in a material dropping area; the conveying mechanism comprises a driving mechanism, and the conversion of the inner and outer positions of the hopper is realized by the driving of the driving mechanism; The hopper includes a silo, a collection wheel and a first driving mechanism, the collection wheel is connected to the first driving mechanism, the silo includes a drop zone, a collection zone and an inclined plane, the inclined plane is arranged between the drop zone and the collection zone, the inclined plane on one side of the drop zone is higher than that on the side of the collection zone; the circumferential lower edge of the collection wheel is arranged at the lowest edge of the inclined plane on one side of the collection zone; a plurality of blades are arranged on the collection wheel; the blades are arranged on the circumferential inner wall of the collection wheel; the hopper also includes a feeding slide plate, one end of the feeding slide plate is arranged on one side of the collection wheel, and the other end is arranged above the drop zone, and the end of the feeding slide plate arranged on one side of the collection wheel is higher than the end arranged above the drop zone; The conveying mechanism includes a base, a turntable and a second driving mechanism, wherein the turntable is horizontally arranged on the base, and the turntable is connected to the second driving mechanism through a rotating shaft, and the turntable is provided with a plurality of supporting holes that can fit the rods with hanging heads at equal intervals along the circumference; the turntable is divided into an inner part of the hopper and an outer part of the hopper by a baffle, and the inner part of the hopper is arranged in a material dropping area; an air suction hole for sucking air from the supporting hole of the turntable is arranged on the base below the inner part of the hopper, and the air suction hole is connected to a vacuum device, and the air suction hole is arranged in an annular groove of the base; The hopper includes a feeding slide, one end of which is arranged on one side of the aggregate wheel, and the other end is arranged above the turntable. The end of the feeding slide arranged on the side of the aggregate wheel is higher than the end arranged above the turntable; a return channel is arranged between the end above the turntable and the turntable.

2. According to claim 1, the active feeding bar feeding device with hanging head is characterized in that: The rotating disk is provided with a suction confirmation position at the outer side of the hopper, and a suction confirmation mechanism is provided on the suction confirmation position.

3. According to claim 2, the active feeding bar feeding device with hanging head is characterized in that: The suction confirmation mechanism is one or more of a through-beam sensor, a reflective sensor, and a pressure detection mechanism; the through-beam sensor is included on both sides of the suction confirmation position to detect the head of the rod with a hanging head, and the reference plane for detection is the upper surface of the supporting hole; the reflective sensor is included on a base arranged at the lower part of the turntable corresponding to the supporting hole; the pressure detection mechanism includes an air suction hole arranged on the base.

4. A feeding method of the active feeding bar feeding device with hanging head according to any one of claims 1 to 3, characterized in that: The rods with hanging heads are transported from a low place to a high place. In the process of transporting from a high place to a low place, the rods with hanging heads fall onto the conveying mechanism. Some of the rods with hanging heads are picked up by the conveying mechanism in a specific posture, and the picked up rods with hanging heads are transported by the conveying mechanism; the rods with hanging heads that are not picked up fall to a low place and repeat the above action; the conveying mechanism includes a base, a turntable and a second driving mechanism, the turntable is horizontally arranged on the base, the turntable is connected to the second driving mechanism through a rotating shaft, and the turntable is provided with a plurality of supporting holes that can fit the rods with hanging heads at equal intervals along the circumference; The turntable is divided into an inner part of the hopper and an outer part of the hopper by a baffle, and the inner part of the hopper is arranged in the material dropping area; an air suction hole for sucking air from the supporting hole of the turntable is arranged on the base below the inner part of the hopper, and the air suction hole is connected to a vacuum device, and the air suction hole is arranged in an annular groove of the base; the vacuum device provides negative pressure for the air suction hole and the supporting hole, and the rod with a hanging head is attracted by the supporting hole during the falling process, the rod body is inserted into the supporting hole, and the head is supported by the turntable outside the supporting hole, and the turntable is driven to rotate by the second driving mechanism to realize the transportation of the rod with a hanging head.

Images