CN112960377A

CN112960377A - Workpiece feeding device

Info

Publication number: CN112960377A
Application number: CN202110336812.3A
Authority: CN
Inventors: 刘爱; 谌根生
Original assignee: Dongguan Huabei Electronic Technology Co Ltd
Current assignee: Dongguan Huabei Electronic Technology Co Ltd
Priority date: 2021-03-25
Filing date: 2021-03-25
Publication date: 2021-06-15
Anticipated expiration: 2041-03-25
Also published as: CN112960377B

Abstract

The invention discloses a workpiece feeding device which comprises an inner cylinder, an outer cylinder and a material taking device. The inner cylinder can be sleeved in the outer cylinder in a sliding manner along the up-down direction of the outer cylinder, so that the inner cylinder has a material taking position and a material discharging position relative to the outer cylinder, and the inner cylinder encloses a containing cavity, a lower opening and an upper opening which are communicated with the containing cavity; an extension body penetrating into the containing cavity from the lower opening and extending upwards is arranged in the outer barrel, and the material taking device is arranged at the upper end of the extension body; when the inner cylinder slides upwards relative to the outer cylinder to a material taking position, the lower opening slides to a material taking device, and the material taking device takes a workpiece from the containing cavity; when the inner cylinder slides downwards relative to the outer cylinder to a discharging position, the upper opening slides to a material taking device, and the material taking device sends a taken workpiece out of the inner cylinder; the number of workpieces used immediately is counted conveniently, the phenomena that a large number of workpieces are scattered due to careless collision, the workpieces fall off due to shaking and taking the workpieces, and products are poor due to the fact that the workpieces fall off or are scattered are avoided.

Description

Workpiece feeding device

Technical Field

The invention relates to the field of production of consumer electronic products, in particular to workpiece feeding equipment for preventing poor products caused by falling of screws during manual screw locking.

Background

In the life of people, consumer electronic products such as smart phones, notebook computers, tablets and the like are seen everywhere.

In a non-large-scale operation station (such as but not limited to a maintenance station) for consumer electronic products, a feeding device for manually locking screws is usually an open type plastic screw disk, screws with the number ranging from 150 to 500 can be loaded at one time, and all screws are exposed during use, so that the screws are prone to fall into the product or fall on an operation table to cause product defects under the following conditions.

(1) The operating personnel or the related materials knock over or overturn the screw plate;

(2) in the process of pouring the screws into the screw plate, part of the screws can bounce out of the screw plate;

(3) when the screw disk is shaken to enable the screws to sink into the screw holes, part of the screws can bounce out of the screw disk;

meanwhile, because the number of screws in the screw plate is huge, individual screws fall into a product or fall on an operation table and are not easy to be found, so that the operator is inconvenient to count the number of the screws used immediately.

Likewise, the feeding of the screw disk to other workpieces than screws also has the disadvantages described above.

Therefore, there is a need for a workpiece feeding apparatus that effectively prevents the falling of workpieces to cause poor product quality and facilitates statistical and immediate use of workpieces to overcome the above-mentioned drawbacks.

Disclosure of Invention

The invention aims to provide a workpiece feeding device which can effectively prevent a workpiece from falling to cause poor products and is convenient for counting the workpieces to be used immediately.

In order to achieve the purpose, the workpiece feeding device comprises an inner cylinder, an outer cylinder and a material taking device. The inner cylinder can be sleeved in the outer cylinder in a sliding manner along the up-down direction of the outer cylinder, so that the inner cylinder has a material taking position and a material discharging position relative to the outer cylinder, and the inner cylinder encloses a containing cavity, a lower opening and an upper opening which are communicated with the containing cavity; an extension body penetrating into the containing cavity from the lower opening and extending upwards is arranged in the outer barrel, and the material taking device is arranged at the upper end of the extension body; when the inner cylinder slides upwards relative to the outer cylinder to the material taking position, the lower opening slides to the material taking device, and the material taking device takes workpieces from the containing cavity; when the inner cylinder slides downwards relative to the outer cylinder to the discharging position, the upper opening slides to the material taking device, and the material taking device sends the taken workpiece out of the inner cylinder.

Preferably, the inner cylinder comprises an inner cylinder body slidably sleeved with the outer cylinder and a collection guide plate which is arranged in the inner cylinder body and inclines downwards towards the direction close to the extension body, the upper end of the collection guide plate is connected with the inner wall of the inner cylinder body, the lower end of the collection guide plate surrounds the extension body, the lower end of the collection guide plate encloses the lower opening, the inner cylinder body and the collection guide plate together enclose the containing cavity, and the upper opening is formed in the position, corresponding to the upper part of the lower opening, of the inner cylinder body; the collecting guide plate enables the workpieces in the containing cavity to be collected at the material taking device when the inner barrel slides to the material taking position.

Preferably, the material taking device is provided with a material receiving slot hole, the collecting guide plate enables the workpiece in the containing cavity to be collected and slide into the material receiving slot hole of the material taking device when the inner cylinder slides to the material taking position, and the material taking device enables the workpiece sliding into the material receiving slot hole to be sent out of the inner cylinder when the inner cylinder slides to the material discharging position.

Preferably, the receiving slot hole vertically penetrates through the top surface of the material taking device.

Preferably, the top surface of the material taking device is provided with a spherical surface, and the material receiving slot hole penetrates through the spherical surface upwards and vertically.

Preferably, a sealing ring is arranged in the lower opening, the sealing ring is assembled on the collecting guide plate, and the extension body can be vertically slidably arranged in the sealing ring relative to the sealing ring.

Preferably, the inner cylinder further comprises an inner cylinder cover which is covered and connected with the inner cylinder body from the upper part, and the upper opening is formed in the inner cylinder cover.

Preferably, the workpiece feeding apparatus of the present invention further includes an outer cover, at least one of the outer cylinder and the inner cylinder is covered and connected with the outer cover, and the outer cover covers the upper opening.

Preferably, the material taking device and the upper end of the extension body are inserted, sleeved, clamped or in threaded connection with each other.

Preferably, one of the outer cylinder and the inner cylinder is provided with a limiting guide protrusion, the other of the outer cylinder and the inner cylinder is provided with a limiting guide groove, the limiting guide groove extends along the up-down direction of the outer cylinder, the limiting guide protrusion is arranged in the limiting guide groove, the limiting guide protrusion and the limiting guide groove jointly block the inner cylinder from rotating around the extending body, and the limiting guide protrusion abuts against the lower groove wall of the limiting guide groove when the inner cylinder slides to the material taking position.

Compared with the prior art, the inner cylinder is sleeved in the outer cylinder in a sliding manner along the up-down direction of the outer cylinder, so that the inner cylinder has a material taking position and a material discharging position relative to the outer cylinder, the inner cylinder surrounds a containing cavity, a lower opening and an upper opening which are communicated with the containing cavity, an extending body which penetrates into the containing cavity from the lower opening and extends upwards is arranged in the outer cylinder, and the material taking device is arranged at the upper end of the extending body; therefore, in the feeding process, an operator enables the inner cylinder to slide upwards relative to the outer cylinder to a material taking position, so that the lower opening slides to the material taking device, and the material taking device takes the workpiece from the containing cavity; then, when the operator makes the inner cylinder slide downwards relative to the outer cylinder to a discharging position, the upper opening slides to the material taking device, and the material taking device sends the taken workpiece out of the inner cylinder; the number of workpieces used immediately is counted conveniently, the phenomena that a large number of workpieces are scattered due to careless collision, the workpieces fall off due to the fact that the workpieces are taken in a shaking mode, and products are poor due to the fact that the workpieces fall off or are scattered are avoided. Therefore, the workpiece feeding device provided by the invention can effectively prevent the workpieces from falling off to cause poor products and is convenient for counting and immediately using the workpieces. In addition, the workpiece falling can be effectively prevented by means of the matching of the outer cylinder, the inner cylinder and the material taking device, the defective products can be prevented, and the workpieces can be conveniently counted and used in real time, so that the workpiece feeding equipment is simple in structure.

Drawings

Fig. 1 is a schematic perspective view of a work feeding apparatus of the present invention.

Fig. 2 is a schematic perspective exploded view of the work feeding apparatus shown in fig. 1.

Figure 3 is a schematic view of the workpiece supply apparatus of figure 2 at another angle.

Fig. 4 is a schematic view of the workpiece feeding apparatus of the present invention with the cover hidden and the extractor in the extracting position.

FIG. 5 is a schematic view of the workpiece feeding apparatus of the present invention with the lid hidden and the take-out device in the take-out position.

FIG. 6 is a schematic plan view of the workpiece supply apparatus of the present invention after hiding the cover and projecting in the opposite direction indicated by the arrow A.

Fig. 7 is a schematic perspective view of a dispenser in the work feeding apparatus shown in fig. 2.

Fig. 8 is a schematic perspective view of a variation of the dispenser shown in fig. 7.

Fig. 9 is a schematic view of the internal structure of the work feeding apparatus shown in fig. 6, taken along line B-B with the extractor in the extracting position.

Fig. 10 is a schematic view of the internal structure of the work feeding apparatus shown in fig. 6, taken along the line B-B and with the take-off device in the take-off position.

Detailed Description

Embodiments of the present invention will now be described with reference to the drawings, wherein like element numerals represent like elements.

Referring to fig. 1, 4, 5, 8 and 9, the workpiece feeding apparatus 100 of the present invention includes an inner cylinder 10, an outer cylinder 20 and a material extractor 30. The inner cylinder 10 is slidably sleeved in the outer cylinder 20 along the up-down direction of the outer cylinder 20, so that the inner cylinder 10 has a material taking position shown in fig. 4 and 9 and a material discharging position shown in fig. 5 and 10 relative to the outer cylinder 20; the inner cylinder 10 encloses a containing chamber 11, and a lower opening 12 and an upper opening 13 which communicate with the containing chamber 11. An extension body 21 which penetrates into the containing cavity 11 from the lower opening 12 and extends upwards is arranged in the outer cylinder 20, preferably, the central lines (indicated by the reference number C) of the extension body 21 and the outer cylinder 20 are overlapped, so that the extension body 21 is positioned at the center of the outer cylinder 20, the manufacturing and processing of the extension body 21 and the outer cylinder 20 are convenient, the smoothness of the up-and-down sliding of the inner cylinder 10 relative to the outer cylinder 20 is improved, and the central lines of the extension body 21 and the outer cylinder 20 can be staggered with each other according to actual requirements; the extension 21 and the outer cylinder 20 together form an integral structure, but not limited thereto. The material taking device 30 is arranged at the upper end of the extending body 21, specifically, the material taking device 30 is detachably assembled at the upper end of the extending body 21, so that the material taking device 30 can be conveniently assembled and disassembled on the extending body 21, and therefore, different material taking devices 30 can be replaced to adapt to screws 200 with different specifications; preferably, the material taking device 30 is in threaded connection with the extension body 21 to ensure the reliability of the connection between the material taking device 30 and the extension body 21, and certainly, the purpose of detachable assembly between the material taking device 30 and the extension body 21 can also be realized by adopting modes such as insertion, sleeving or clamping; in addition, the dispenser 30 and the upper end of the extension body 21 may be assembled together in a non-detachable manner, that is, the dispenser 30 and the extension body 21 are integrally fixed together by welding, gluing, riveting or integral molding, which is not limited to the above. When the inner cylinder 10 slides upwards relative to the outer cylinder 20 to the material taking position shown in fig. 4, the lower opening 12 slides to the material taking device 30, and the material taking device 30 takes the screw 200 from the containing cavity 11, as shown in fig. 9; when the inner cylinder 10 is moved downward relative to the outer cylinder 20 to the discharge position shown in fig. 5, the upper opening 13 is slid to the extractor 30, and the extractor 30 discharges the extracted screw 200 out of the inner cylinder 10, as shown in fig. 10. More specifically, the following:

as shown in fig. 2 to 5, and fig. 9 and 10, the inner cylinder 10 includes an inner cylinder 10a slidably fitted to the outer cylinder 20, and a collecting baffle 10b provided in the inner cylinder 10a and inclined downward toward the extension 21. The upper end of the collecting guide plate 10b is connected with the inner wall 14 of the inner cylinder 10a, preferably, the collecting guide plate 10b and the inner cylinder 10a form an integrated structure together, for example, the collecting guide plate 10b and the inner cylinder 10a form an integrated structure together by welding, gluing or integral molding, but not limited thereto; the lower end of the collection guide plate 10b surrounds the extension body 21, preferably, the collection guide plate 10b is arranged in a central symmetry manner with the central line C of the extension body 21, so as to further improve the reliability of the material taking device 30 in taking the screw 200, but not limited thereto; the lower end of the collecting guide plate 10b encloses a lower opening 12, the inner cylinder 10a and the collecting guide plate 10b enclose a containing cavity 11 together, and an upper opening 13 is formed at the position, corresponding to the upper part of the lower opening 12, of the inner cylinder 10 a. The collection guide plate 10b collects the screws 200 in the containing cavity 11 to the material taking device 30 when the inner cylinder 10 slides to the material taking position, and the state is shown in fig. 9. For a more detailed structure of the dispenser 30, see the following:

as shown in fig. 2, fig. 5, fig. 7, fig. 9 and fig. 10, the material taking device 30 is provided with a material receiving slot 31, when the inner cylinder 10 slides to the material taking position, the collecting guide plate 10b collects the screws 200 in the containing cavity 11 and slides into the material receiving slot 31 of the material taking device 30, when the inner cylinder 10 slides to the material discharging position, the material taking device 30 sends the screws 200 sliding into the material receiving slot 31 out of the inner cylinder 10, so as to further improve the reliability of the material taking device 30 in taking and sending the screws 200 each time. Specifically, in fig. 2, 5, 7, 9 and 10, the material receiving slot 31 is upwardly and vertically penetrated through the top surface of the material taking device 30, preferably, the top surface of the material taking device 30 has a spherical surface 32, the material receiving slot 31 is upwardly and vertically penetrated through the spherical surface 32, and then, in combination with the inclined collecting guide plate 10b, the screw 200 in the containing cavity 11 is automatically slid into the material receiving slot 31 of the material taking device 30 by gravity and is automatically corrected to the vertical direction, so that the position of the inner barrel 10 for surrounding the upper opening 13 is prevented from interfering when the material taking device 30 sends the screw 200 out of the inner barrel 10 from the upper opening 13, thereby ensuring the reliability of the material taking device 30 sending the screw 200 out of the inner barrel 10 from the upper opening 13. More specifically, in fig. 10, the included angle α between the collecting baffle 10b and the central line C of the extension body 21 is 30 to 60 degrees, such as 30, 35, 40, 45, 50, 55 or 60 degrees, but not limited thereto. It can be understood that the collecting baffle 10b is a funnel structure, and the outline of the collecting baffle 10b, which is cut by a plane perpendicular to the center line C of the extension body 21, is a circle or a regular polygon, so that the collecting baffle 10b can collect the screws 200 in the containing cavity 11 more smoothly and reliably toward the center line C; in addition, the receiving slot 31 is a counter bore structure, but not limited thereto.

As shown in fig. 3, 9 and 10, a sealing ring 40 is disposed in the lower opening 12, and the sealing ring 40 is assembled to the collecting guide plate 10b, so that the collecting guide plate 10b and the sealing ring 40 are relatively stationary, and thus the sealing ring 40 slides up and down along with the inner cylinder 10 relative to the outer cylinder 20; the extending body 21 is slidably inserted into the sealing ring 40 up and down relative to the sealing ring 40, so as to effectively prevent the screws 200 in the containing cavity 11 from being collected to the extending body 21 due to the action of the collecting guide plate 10b when the material taking device 30 is not at the material taking position by means of the sealing ring 40, thereby avoiding the situation that the screws 200 collected to the extending body 21 are clamped into the gap between the extending body 21 and the lower opening 12 to cause obstacles; in addition, the fitting of the seal ring 40 and the extension body 21 is transition fitting due to the provision of the seal ring 40.

As shown in fig. 2 to 4, and fig. 9 and 10, the inner cylinder 10 further includes an inner cylinder cover 10c covering the inner cylinder 10a from above, and an upper opening 13 is formed in the inner cylinder cover 10c, so as to facilitate the assembling and disassembling operations of the material extractor 30 by an operator and the batch addition of screws 200 into the containing cavity 11 by the arrangement of the inner cylinder cover 10 c; on the other hand, the screw 200 in the containing cavity 11 is effectively prevented from falling or scattering; specifically, in fig. 2 to 4 and fig. 9 and 10, the inner cylinder cover 10c is screwed with the inner cylinder 10a, and may be fastened, clamped, or sleeved, and the like, so that the disclosure is not limited thereto. It will be understood that when the inner cylinder cover 10c is deleted, the upper opening 13 at this time is formed at the upper end of the inner cylinder 10 a.

As shown in fig. 2 to 4 and fig. 9 and 10, the outer cylinder 20 is provided with a limiting guide protrusion 22, the inner cylinder 10 is provided with a limiting guide groove 15, the limiting guide groove 15 extends along the up-down direction of the outer cylinder 20, the limiting guide protrusion 22 is disposed in the limiting guide groove 15, the limiting guide protrusion 22 and the limiting guide groove 15 jointly block the inner cylinder 10 from rotating around the extending body 21, and the limiting guide protrusion 22 abuts against a lower groove wall 151 of the limiting guide groove 15 when the inner cylinder 10 slides to the material taking position, as shown in fig. 9; by means of the matching of the limit guide protrusions 22 and the limit guide grooves 15, on one hand, the inner cylinder 10 can be prevented from rotating relative to the outer cylinder 20 in the up-and-down sliding process, and on the other hand, the inner cylinder 10 which slides to the material taking position can be prevented from accidentally falling off from the outer cylinder 20, so that the smoothness and the reliability of the up-and-down sliding of the inner cylinder 10 relative to the outer cylinder 20 are ensured; in addition, the limit guide projection 22 and the limit guide groove 15 are matched to achieve the dual functions of rotation prevention and limit, so that the structure is simplified. Specifically, in fig. 2 to 4, the limiting guide grooves 15 are plural and arranged at intervals in the circumferential direction, and a limiting guide protrusion 22 is disposed in each limiting guide groove 15 to improve the dual functions of rotation prevention and limiting between the inner cylinder 10 and the outer cylinder 20, but not limited thereto. Meanwhile, in order to ensure the discharging reliability, in fig. 10, the inner cylinder 10 abuts against the lower bottom wall 23 of the outer cylinder 20 when sliding to the discharging position, and the state is shown in fig. 10.

As shown in fig. 2 to 4, in order to prevent foreign matters from falling into the work feeding apparatus 100 of the present invention, the work feeding apparatus 100 of the present invention further includes an outer lid 50, both the outer cylinder 20 and the inner cylinder 10 are respectively coupled to the outer lid 50 in a covering manner, and the outer lid 50 covers the upper opening 13; of course, the outer cylinder 20 or the inner cylinder 10 can be covered and connected with the outer cover 50 according to actual requirements, and the outer cover 50 only needs to cover the upper opening 13, so the above description is not limited. It should be noted that, because the inner cylinder 10 includes the inner cylinder 10a, the collecting guide plate 10b and the inner cylinder cover 10c, when the inner cylinder 10 is covered and connected with the outer cover 50, the outer cover 50 at this time can be covered and connected with the inner cylinder 10a, or covered and connected with the inner cylinder cover 10c, or covered and connected with the inner cylinder 10a and the inner cylinder cover 10c at the same time.

As shown in fig. 8, which is a modified configuration of the dispenser 30 shown in fig. 7; specifically, in fig. 7, four receiving slot holes 31 of the material taking device 30 are preferably arranged in a central symmetry manner; in fig. 8, there are two receiving slots 31 of the material taking device 30, but not limited thereto.

The working principle of the workpiece feeding device of the invention is explained with the attached drawings: first, the outer lid 50 and the inner cylinder lid 10c are opened, a suitable dispenser 30, such as the dispenser 30 of fig. 7 or 8, is replaced or loaded, and the screw 200 to be used is poured into the containing cavity 11 of the inner cylinder 10; then, the inner cylinder cover 10c is screwed on the inner cylinder 10 a; secondly, the inner cylinder 10 is pulled out upwards to the material taking position, so that the screw 200 in the containing cavity 11 slides into the material receiving slot hole 31 of the material taking device 30 under the action of gravity and the guidance of the inclined collection guide plate 10b, and the screw 200 sliding into the material receiving slot hole 31 of the material taking device 30 is automatically corrected to the vertical direction by the aid of the material receiving slot hole 31 vertically and upwards penetrating through the spherical surface 32, and the state is shown in fig. 9; then, the inner cylinder 10 is closed downwards to a discharging position, and the screw 200 is sent out of the inner cylinder 10 by the material taking device 30, and the state is shown in figure 10; at this time, the operator takes out the screw 200 from the dispenser 30 and locks the product. After the work is finished, the operator covers the outer cover 50 on the inner cylinder cover 10c to prevent foreign matters from falling.

Compared with the prior art, the inner cylinder 10 can be sleeved in the outer cylinder 20 in a sliding manner along the up-down direction of the outer cylinder 20, so that the inner cylinder 10 has a material taking position and a material discharging position relative to the outer cylinder 20, the inner cylinder 10 encloses the containing cavity 11, a lower opening 12 and an upper opening 13 which are communicated with the containing cavity 11, an extending body 21 which penetrates into the containing cavity 11 from the lower opening 12 and extends upwards is arranged in the outer cylinder 20, and the material taking device 30 is arranged at the upper end of the extending body 21; therefore, in the feeding process, the operator slides the inner barrel 10 upwards to the material taking position relative to the outer barrel 20, so that the lower opening 12 slides to the material taking device 30, and the material taking device 30 takes the screw 200 from the containing cavity 11; then, when the operator slides the inner cylinder 10 downward to the discharging position relative to the outer cylinder 20, the upper opening 13 slides to the material taking device 30, and the taken screw 200 is sent out of the inner cylinder 10 by the material taking device 30; the number of the screws 200 used immediately is counted conveniently, and the problems that a large number of screws 200 are scattered due to careless collision, the screws 200 fall off due to the fact that the screws 200 are taken in a shaking mode, and products are poor due to the fact that the screws 200 fall off or are scattered are avoided. Therefore, the workpiece feeding apparatus 100 of the present invention effectively prevents the screw 200 from falling off to cause poor product and facilitates counting of the use of the screw 200 in real time. In addition, the cooperation of the outer cylinder 20, the inner cylinder 10 and the material extractor 30 can effectively prevent the screw 200 from falling off to cause poor product and facilitate counting the screw 200 for immediate use, so that the structure of the workpiece feeding device 100 of the present invention is simple.

Note that, since the direction indicated by the arrow a in the drawing is a direction from the bottom to the top of the outer cylinder 20, the vertical direction of the outer cylinder 20 is the direction indicated by the arrow a and the opposite direction. In the above description, the screw 200 is used as the workpiece, but of course, the type of the workpiece is not limited thereto; in addition, the material receiving slot 31 vertically penetrates the top surface of the material dispenser 30 upward, which is the state when the center line (see the reference symbol C) of the material dispenser 30 is placed to be perpendicular to the horizontal plane.

The above disclosure is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the scope of the present invention, therefore, the present invention is not limited by the appended claims.

Claims

1. A workpiece feeding device is characterized by comprising an inner barrel, an outer barrel and a material taking device, wherein the inner barrel is sleeved in the outer barrel in a sliding manner along the vertical direction of the outer barrel so as to enable the inner barrel to have a material taking position and a material discharging position relative to the outer barrel, a containing cavity, a lower opening and an upper opening are defined by the inner barrel, the lower opening and the upper opening are communicated with the containing cavity, an extending body penetrating into the containing cavity from the lower opening and extending upwards is arranged in the outer barrel, and the material taking device is arranged at the upper end of the extending body; when the inner cylinder slides upwards relative to the outer cylinder to the material taking position, the lower opening slides to the material taking device, and the material taking device takes workpieces from the containing cavity; when the inner cylinder slides downwards relative to the outer cylinder to the discharging position, the upper opening slides to the material taking device, and the material taking device sends the taken workpiece out of the inner cylinder.

2. The workpiece feeding apparatus according to claim 1, wherein the inner cylinder comprises an inner cylinder slidably fitted to the outer cylinder, and a collecting baffle provided in the inner cylinder and inclined downward toward the extension body, an upper end of the collecting baffle being connected to an inner wall of the inner cylinder, a lower end of the collecting baffle surrounding the extension body, a lower end of the collecting baffle surrounding the lower opening, the inner cylinder and the collecting baffle together surrounding the containing chamber, and the upper opening being formed in a position of the inner cylinder located above the lower opening; the collecting guide plate enables the workpieces in the containing cavity to be collected at the material taking device when the inner barrel slides to the material taking position.

3. The workpiece feeding apparatus as claimed in claim 2, wherein the take-out device has a receiving slot, the collecting guide plate collects the workpieces in the containing chamber and slides into the receiving slot of the take-out device when the inner cylinder slides to the take-out position, and the take-out device sends the workpieces sliding into the receiving slot out of the inner cylinder when the inner cylinder slides to the take-out position.

4. The workpiece feeding apparatus as claimed in claim 3, wherein the material receiving slot extends vertically upward through the top surface of the material take-out device.

5. The workpiece feeding apparatus as claimed in claim 4, wherein the top surface of the feeder has a spherical surface, and the receiving slot extends vertically upward through the spherical surface.

6. The workpiece feeding apparatus of claim 2, wherein a sealing ring is disposed in the lower opening, the sealing ring is assembled to the collecting guide plate, and the extension body is slidably disposed in the sealing ring up and down relative to the sealing ring.

7. The workpiece feeding apparatus according to claim 2, wherein the inner cylinder further comprises an inner cylinder cover coupled to the inner cylinder cover from above, and the upper opening is formed in the inner cylinder cover.

8. The workpiece feeding apparatus of claim 7, further comprising an outer lid, at least one of the outer and inner barrels being coupled to the outer lid, the outer lid covering the upper opening.

9. The workpiece feeding apparatus of claim 1, wherein the material extractor and the upper end of the extension body are inserted, sleeved, clamped or screwed with each other.

10. The workpiece feeding apparatus according to claim 1, wherein one of the outer cylinder and the inner cylinder is provided with a limit guide projection, and the other of the outer cylinder and the inner cylinder is provided with a limit guide groove extending in an up-down direction of the outer cylinder, the limit guide projection being disposed in the limit guide groove, the limit guide projection and the limit guide groove together block the inner cylinder from rotating around the extension body, and the limit guide projection abuts against a lower groove wall of the limit guide groove when the inner cylinder slides to the material taking position.