CN111891712A - Stud feeding machine and screw machine - Google Patents

Abstract

The application discloses a stud feeder (1000) and a screw machine. The stud feeding machine (1000) is used for automatically feeding studs (100) and comprises a shell (200), a vibration disc (300), a screening inclined rail (400), a direction assimilation assembly (500) and a storage groove (600). According to the stud feeding machine, the direction of the studs can be assimilated, the studs are arranged according to the preset direction, and the standardized locking operation is facilitated.

Description

Stud feeding machine and screw machine

Technical Field

The application belongs to the technical field of pay-off and locking of screw, especially relates to a spiral shell post feeder for supplying double-screw bolt.

Background

The screw machine consists of a feeding system and a secondary locking system, wherein the feeding part is also called as a screw arranging machine and a screw feeding machine. The screw feeder is one kind of automatic apparatus for setting screw in one row and raising work efficiency and is widely used in electronic industry. For example, when a circuit board is mounted and fixed, hexagonal copper studs are generally used.

Disclosure of Invention

An object of the application is to provide a double-screw bolt feeder, it can assimilate the direction of double-screw bolt, makes the screw post arrange according to the predetermined direction, is convenient for standardized locking operation.

The application is realized by the following technical scheme:

a stud feeding machine is used for automatically supplying studs, and comprises a shell, a vibration disc, a screening inclined rail, a direction assimilation assembly and a storage trough,

the stud comprises a thread section and a screw section with different diameters,

the direction assimilation component comprises a direction selection opening, a turning fulcrum part, a first guide part, a second guide part and a discharge rail,

the direction-selecting opening comprises a first opening part matched with the screw section, a second opening part matched with the screw section and a third opening part matched with the screw section,

the second opening and the third opening are oppositely arranged at two ends of the first opening,

the direction-selecting opening is arranged at the outer side of the output end of the screening ramp,

the turning fulcrum part is arranged below the upper surface of the direction-selecting opening,

the flip fulcrum portion is located at the center in the front-rear direction of the first opening portion,

the first guide part is positioned below the overturning fulcrum part,

the first guide portion is located in front of the second guide portion,

the second guide part is connected with the discharging rail.

In the stud feeder machine, further, the first guide portion includes a first upward extending section, a first arc-shaped section, and a first forward extending end, and the first upward extending section, the first arc-shaped section, and the first forward extending end are connected in sequence.

In the stud feeder machine, the second guide portion further includes a second upward extending section, a second arc-shaped section, and a second forward extending end, and the second upward extending section, the second arc-shaped section, and the second forward extending end are connected in sequence.

In the stud feeder machine, further, the distance between the first upward extending section and the second upward extending section in the front-rear direction is greater than half of the length of a stud.

In the stud feeder machine, a distance between the first upward extending section and the second upward extending section in the front-rear direction is smaller than a sum of a length of the thread section and a length of the screw section.

In the stud feeder, the second upward extending section is located behind the third opening.

In the stud feeding machine, the stud is a hexagonal copper stud or a steel stud.

In the stud feeder, a stopper for preventing the stud from being tilted prematurely is provided on the discharge rail upstream of the stock tank.

In the stud feeding machine, the screening ramp is provided with a first screening section connected with the direction selection opening and a second screening section connected with the first screening section, the width of the first screening section is smaller than that of the second screening section, and the width of the first screening section is 1.1-1.3 times of the diameter of an inscribed circle of the screw section of the stud; the width of the second screening section is more than 1.5 times of the diameter of an inscribed circle of the screw section of the stud.

In another aspect, the present application further provides a screw machine including the stud feeder.

The beneficial effect of this application is: the utility model provides a double-screw bolt feed machine, assimilate the subassembly and deposit the silo including casing, vibrations dish, screening inclined rail, direction, its direction that can assimilate the double-screw bolt makes the double-screw bolt arrange according to certain direction, the standardized locking operation of being convenient for.

Drawings

FIG. 1 is a schematic external view of a stud feeder according to one embodiment of the present application;

FIG. 2 is a schematic illustration of the internal structure of the stud feeder of FIG. 1;

FIG. 3 is another schematic illustration of the stud feeder of FIG. 1;

FIG. 4 is an enlarged view taken at A in FIG. 3;

FIG. 5 is a schematic cross-sectional view of a direction-assimilating assembly of the stud feeder of FIG. 1;

FIG. 6 is a schematic diagram illustrating the principle of operation of the orientation assimilation assembly of the stud feeder of FIG. 1;

fig. 7 is a schematic diagram for explaining the working principle of the first guide portion of the stud feeder of fig. 1;

fig. 8 is a schematic diagram for explaining the working principle of the second guide portion of the stud feeder of fig. 1;

FIG. 9 is a schematic illustration of yet another perspective view of the stud feeder of FIG. 1;

FIG. 10 is an enlarged view of FIG. 9 at B;

FIG. 11 is a front view of the stud showing the configuration of the stud and the diameter of the inscribed circle of the shank segment of the stud;

figure 12 is an enlarged view at C of figure 9 showing the width of the first screening section and the width of the second screening section of the screening ramp.

The designations in the figures have the following meanings:

100-a stud; 110-a thread section; 120-a screw section; 200-a housing; 300-a vibration disc; 400-screening the inclined rails; 410-a first screening section; 420-a second screening section; 500-direction assimilating module; 510-orientation-selective opening; 511-a first opening; 512-second opening; 513-a third opening; 520-overturning fulcrum part; 530-a first guide; 531-first upward extension; 532-a first arc segment; 533-a first forward extending end; 540-a second guide; 541-a second upward extending section; 542-a second arc segment; 543-a second forward extending end; 550-a discharge rail; 600-a material storage tank; 610-a stop; 700-a monitoring section; 1000-stud feeder.

Detailed Description

The technical solutions in the embodiments of the present application will be described below clearly and completely with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are only a part of the embodiments of the present application, and not all of the embodiments. The components of the embodiments of the present application, generally described and illustrated in the figures herein, can be arranged and designed in a wide variety of different configurations. Thus, the following detailed description of the embodiments of the present application, presented in the accompanying drawings, is not intended to limit the scope of the claimed application, but is merely representative of selected embodiments of the application. All other embodiments, which can be derived by a person skilled in the art from the embodiments of the present application without making any creative effort, shall fall within the protection scope of the present application.

According to the research and development personnel of the applicant, the stud feeding machine on the market generally adopts a stud feeding mode in a vertical posture, and a thread section faces downwards. And the screw bolt is from the unordered state in the vibrations dish, when arranging to vertical state, produces two kinds of arrangement states: one is with the thread section facing downwards, and the other is with the thread section facing upwards. This kind of pay-off mode is not convenient for subsequent standardized locking operation.

The inventor aims at the problems and makes a sharp innovation, and provides a stud feeding machine which can assimilate the direction of studs, so that the studs are arranged in a certain direction, and subsequent standardized locking operation is facilitated.

As shown in fig. 1-10, the stud feeder 1000 of the present embodiment is used to automatically feed studs 100. The stud feeder 1000 includes a housing 200, a vibration plate 300, a screening ramp 400, a direction-assimilating component 500, and a storage tank 600.

As shown in fig. 11, the stud 100 includes a thread section 110 and a screw section 120 having different diameters. The outer diameter of the thread section 110 is smaller than the diameter Da of the inscribed circle of the screw section 120.

As shown in fig. 3 to 10, the direction assimilation module 500 includes a direction selection opening 510, a turning fulcrum portion 520, a first guide portion 530, a second guide portion 540, and a discharge rail 550.

Specifically, the direction selection opening 510 includes a first opening portion 511 matched to the screw section 120, a second opening portion 512 matched to the thread section 110, and a third opening portion 513 matched to the thread section 110.

The second opening 512 and the third opening 513 are disposed at opposite ends of the first opening 511.

As shown in fig. 1-5, the direction selection openings 510 are disposed circumferentially outward of the output end of the screen ramp 400.

As shown in fig. 6, the flip fulcrum portion 520 is disposed below the upper surface of the direction selection opening 510.

Specifically, as shown in fig. 6, the flip fulcrum portion 520 is located at the center of the first opening 511 in the front-rear direction.

As shown in fig. 6 to 8, the first guide portion 530 is located below the flip fulcrum portion 520. The first guide 530 is located in front of the second guide 540. The second guide 540 is connected to the discharging rail 550.

The stud 100 includes a thread section 110 and a screw section 120 having different diameters. When the diameter of the screw thread section is larger or smaller than that of the screw section, the direction assimilation component 500 distinguishes the screw section 110 and the screw section 120 of the stud 100, so that the stud 100 achieves the effect of arrangement in the same direction.

In general, in the present embodiment, the stud 100 is vibrated in the vibration plate 300, so that the stud 100 moves along the screening ramp 400 connected to the vibration plate 300 to the direction assimilation component 500 outside the output end of the screening ramp 400. And under the action of vibration, stud 100 moves to direction-selecting opening 510 of direction assimilation component 500. Furthermore, in this embodiment, as will be described later, the screen ramp has a first screen section connected to the directional opening and a second screen section connected to the first screen section, the width of the first screen section is smaller than the width of the second screen section, and the first screen section of the screen ramp 400 allows only a single stud 100 to pass through.

Since the direction-selective opening 510 is provided with a first opening portion 511 matched with the screw section 120, a second opening portion 512 matched with the screw section 110, and a third opening portion 513 matched with the screw section 110, the second opening portion 512 and the third opening portion 513 are respectively provided at both ends of the first opening portion 511. Therefore, when the stud 100 is moved to the selected opening 510, the thread segment 110 of the stud 100 can fall into the selected opening 510 regardless of whether it is oriented forward or backward.

Since the turning fulcrum portion 520 is provided at the center of the first opening portion 511 in the front-rear direction of the direction-selecting opening 510 (where the first opening portion 511 is divided into two equal parts in the front-rear direction), when the stud 100 moves to the direction-selecting opening 510, the stud 100 is tilted by the turning fulcrum portion 520 to fall into the corresponding guide portion (the first guide portion 530 or the second guide portion 540).

In one embodiment, the turning fulcrum portion 520 is a thin iron wire crossing the center of the first opening 511 in the front-rear direction, and functions to make the stud 100 receive uneven gravity in the front-rear direction, so that the direction-selecting opening 510 is tilted in a rotating manner. Of course, the turning fulcrum 520 may be formed of a string or a convex portion.

When the stud 100 enters the orientation opening 510 with the thread segment 110 facing forward, as shown in fig. 7. The stud 100 rotates at the turning fulcrum portion 520 under the action of gravity, and the thread segment 110 falls toward the first guide portion 530 below the orientation selection opening 510 toward the front direction. At this time, the stud 100 falls down along the first upward extending section 531, the first arc-shaped section 532 and the first forward extending end 533 on the first guide part 530 under the action of gravity until falling onto the discharging rail 550. At this time, the stud 100 moves on the discharge rail 550 in a forward position of the thread segment 110.

When the stud 100 enters the orientation selecting opening 510 with the thread segment 110 facing rearward, as shown in fig. 8. The stud 100 rotates under gravity at the flip fulcrum 520 and falls toward the second guide 540 below the orientation selecting opening 510. Since the gap between the first guide part 530 and the second guide part 540 is smaller than the length of the stud 100, the stud 100 cannot fall directly onto the second guide part 540. At this time, the thread segment 110 of the stud 100 contacts the second arc segment 542 of the second guide 540, and the screw segment 120 contacts the top of the first upward extending segment 531 of the first guide 530. As the vibration of the vibration plate 300 occurs, the thread segment 110 of the stud 100 slides along the second arc segment 542, so that the stud 100 moves on the discharging rail 550 in a posture that the thread segment 110 faces forward without being jammed. At this point, the direction of the stud 100 is assimilated.

As shown in fig. 5 to 8, the first guiding portion 530 includes a first upward extending section 531, a first arc-shaped section 532 arched backward, and a first forward extending end 533, and the first upward extending section 531, the first arc-shaped section 532, and the first forward extending end 533 are connected in sequence. The second guide part 540 includes a second upward extending section 541, a second arc-shaped section 542 arched rearward, and a second forward extending end 543, and the second upward extending section 541, the second arc-shaped section 542, and the second forward extending end 543 are connected in this order. The distance between the first upward extending section 531 and the second upward extending section 541 in the front-rear direction is greater than half the length of the stud 100, i.e., the sum of the length of the screw thread section 110 and half the length of the screw section 120. The distance in the front-rear direction between the first upward extending section 531 and the second upward extending section 541 is smaller than the sum of the length of the screw section 110 and the length of the screw section 120. The second upward extending section 541 is located rearward of the third opening 513.

Wherein, the upper end of the first upward extension 531 is located right below the turning fulcrum 520, and the distance from the turning fulcrum 520 is less than half of the length of the screw section 110 plus the length of the screw section 120, so as to prevent the stud 100 from posture deflection at the first upward extension 531. Meanwhile, the first forward extending end 533 forms an angle of 45 degrees with the horizontal. And the distance between the lower end of the first forward extending end 533 and the discharging track 550 is less than half of the length of the screw thread section 110 plus the length of the screw section 120, so as to prevent the stud 100 from posture deflection at the first forward extending end 533; meanwhile, the distance between the lower end of the first forward extending end 533 and the discharging track 550 is larger than the maximum diameter of the stud 100, so that the stud 100 falling from the second guide part 540 can be conveyed forward along the discharging track 550.

Meanwhile, the second upward extension 541 of the second guide part 540 is located behind the third opening 513, and the upper end of the second upward extension 541 is prevented from catching the stud 100 falling from the direction selection opening 510.

In addition, in the present embodiment, the distance between the first upward extending section 531 and the second upward extending section 541 in the front-rear direction, and the radius difference between the first arc-shaped section 532 and the second arc-shaped section 542 in the concentric circle direction are both smaller than the sum of the length of the screw section 110 and the length of the screw section 120. When the stud 100 falls from the direction selection opening 510 with the screw thread segment 110 facing rearward, the screw thread segment 110 first comes into contact with the second guide part 540. In this case, if the distance between the first upward extending section 531 and the second upward extending section 541 in the front-rear direction or the radius difference between the first arc-shaped section 532 and the second arc-shaped section 542 in the concentric direction is greater than the sum of the length of the screw section 110 and the length of the screw section 120, the stud 100 may enter the discharge rail 550 in a posture in which the screw section 110 faces rearward, and the reversing effect may not be obtained. Therefore, the distance between the first upward extending section 531 and the second upward extending section 541 in the front-rear direction, and the difference in the radius between the first arc-shaped section 532 and the second arc-shaped section 542 in the concentric direction must each be smaller than the sum of the length of the screw section 110 and the length of the screw section 120. So as to ensure the reversing effect when the stud 100 falls to the second guiding part 540.

Although the structures of the first guide part 530 and the second guide part 540 are described by way of example, the present application is not limited thereto, and for example, the first guide part 530 and the second guide part 540 may also adopt a smoothly inclined plane, a smoothly curved pipe, or various geometric member combinations as long as the respective guide effects can be achieved.

In this embodiment, the second forward extending end 543 interfaces with the second arcuate segment 542 and the outfeed track 550.

As shown in fig. 2 and 7, the stud 100 is a hexagonal copper stud 100. In other embodiments, the stud 100 may be a stud with a thread section and a screw section of different diameters.

As shown in fig. 9 and 10, a stopper 610 for preventing the stud 100 from tilting is provided on the discharge rail 550 upstream of the stock tank 600, so that the stud 100 smoothly enters the stock tank 600.

In this embodiment, after the studs 100 are placed on the vibratory pan 300 of the stud feeder machine 1000, the studs 100 move along the screen ramp 400 in response to the vibratory action of the vibratory pan 300.

In this embodiment, the track cross-section at the input end of the screen ramp 400 can accommodate two or more studs 100 to pass through at the same time, and the track cross-section at the output end connected to the direction-selecting opening 510 can accommodate only one stud 100 to pass through.

Specifically, as shown in fig. 9-12, the screen ramp 400 has a first screen section 410 connected to the directional opening 510 and a second screen section 420 connected to the first screen section 410. Wherein the width of the first screening section 410 is less than the width of the second screening section 420. Moreover, the width Dc of the first screening section 410 is 1.1 to 1.3 times the diameter Da of the inscribed circle of the screw section 120 of the stud 100; the width Db of the second screening section 420 is 1.5 times or more the diameter Da of the inscribed circle of the screw section 120 of the stud 100.

In a specific application example, the width Dc of the first screening section 410 is 1.1 times of the diameter Da of the inscribed circle of the screw section 120 of the stud 100, so as to ensure that the same position on the first screening section 410 can only pass through 1 stud 100 at the same time, and ensure that the feeding of the downstream direction selecting opening 510 is smooth. In addition, the total length of the first screening section 410 is 10 times or more the length of the stud 100. In addition, the width Db of the second screening section 420 is more than 1.6 times of the diameter Da of the inscribed circle of the screw section 120 of the stud 100, so that enough studs 100 are kept on the second screening section 420 to achieve a high feeding rate.

Of course, a plurality of screening sections of greater width may also be provided upstream of the second screening section 420.

In the feeding process, under the condition of end-to-end connection of the stud, the thread section has a risk of entering a threaded hole formed in the tail part of the screw section to cause error connection. Through setting up first screening section 410 and with second screening section 420 that first screening section 410 is connected, through the width Dc that limits first screening section 410, the arc inner wall of cooperation vibrations dish 300 guarantees that the central line of two adjacent double-screw bolts around with certain angle dislocation arrangement, can not align on a straight line around, the thread section can not get into the screw hole that the screw rod section afterbody set up, can realize avoiding the end-to-end connection (the end-to-end connection between two or above double-screw bolts) with screening negative and positive double-screw bolts.

After the stud 100 enters the direction selection opening 510 along the screen ramp 400, under the action of the turning fulcrum portion 520, the stud 100 falls from the opening to the first guide portion 530 or the second guide portion 540, and then reaches the discharging rail 550 in a posture that the thread segments are arranged forward. Under the action of the vibration, the stud 100 moves to the storage tank 600 along the discharging rail 550. Since the stopping part 610 is arranged at the joint of the discharging rail 550 and the material storage groove 600. The stud 100 can be prevented from tilting when entering the storage tank 600 from the discharging track 550, so that the orientation of the thread section of the stud 100 is influenced. Therefore, when the stud 100 can enter the storage tank 600 in the same posture.

In this embodiment, the magazine 600 is connected to a nail feeding device for transferring the stud 100, thereby completing the feeding process of the stud 100. After the feeding of the stud 100 is completed, the screw locking operation may be performed. Since the stud 100 can enter the stock tank 600 at the same posture, standardized stud locking operation can be facilitated.

It is noted that in this embodiment, the stud feeder 1000 is further provided with a monitoring portion 700, as shown in fig. 3 and 9. The monitoring unit 700 is used to monitor the amount of the stud 100 in the vibration plate 300. When the vibration disc 300 is empty or has little material, an alarm can be given to remind the user to charge the material. Thereby improving the continuous operation capability of the stud feeder 1000. The monitoring unit 700 may be implemented by a proximity sensor, which is well known in the art and will not be described herein.

In another aspect, the present application further provides a screw machine including the stud feeder.

In the description of the present application, furthermore, the terms "first", "second" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implying any number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of the feature. In the description of the embodiments of the present application, "a plurality" means two or more unless specifically defined otherwise.

In the description of the present application, it is to be noted that, unless otherwise explicitly specified or limited, the terms "connected" and "connected" are to be interpreted broadly, e.g., as being either fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; may be directly connected or indirectly connected through an intermediate. The specific meaning of the above terms in the present application can be understood in a specific case by those of ordinary skill in the art. In addition, in the description of the present application, "a plurality" means two or more unless otherwise specified.

In the description of the embodiments of the present application, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "height", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of describing the embodiments of the present application and simplifying the description, but do not indicate or imply that the device or element referred to must have a particular orientation, be constructed in a particular orientation, and be operated, and thus should not be construed as limiting the embodiments of the present application.

In embodiments of the present application, unless expressly stated or limited otherwise, the first feature "on" or "under" the second feature may comprise the first and second features being in direct contact, or may comprise the first and second features being in contact, not directly, but via another feature in between. Also, the first feature being "on," "above" and "over" the second feature includes the first feature being directly on and obliquely above the second feature, or merely indicating that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature includes the first feature being directly above and obliquely above the second feature, or simply meaning that the first feature is at a lesser level than the second feature.

In the description herein, references to the terms "one embodiment," "some embodiments," "an illustrative embodiment," "an example," "a specific example" or "some examples" or the like mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the application. In this specification, schematic representations of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

While embodiments of the present application have been shown and described, it will be understood by those of ordinary skill in the art that: various changes, modifications, substitutions and alterations can be made to the embodiments without departing from the principles and spirit of the application, the scope of which is defined by the claims and their equivalents.

Claims (10)

1. A stud feeder (1000) for automatically supplying studs (100), the stud feeder (1000) comprising a housing (200), a vibratory pan (300), a screening ramp (400), a direction assimilation assembly (500), and a storage tank (600),

the stud (100) comprises a thread section (110) and a screw section (120) with different diameters,

the direction assimilation component (500) comprises a direction selection opening (510), a turning fulcrum part (520), a first guide part (530), a second guide part (540) and a discharging rail (550),

the direction-selecting opening (510) comprises a first opening part (511) matched with the screw section (120), a second opening part (512) matched with the screw section (110) and a third opening part (513) matched with the screw section (110),

the second opening (512) and the third opening (513) are oppositely arranged at two ends of the first opening (511),

the direction-selecting opening (510) is arranged outside the output end of the screening ramp (400),

the turning fulcrum portion (520) is provided below the upper surface of the direction selection opening (510),

the turning fulcrum portion (520) is located at the center of the first opening portion (511) in the front-rear direction,

the first guide part (530) is located below the flip fulcrum part (520),

the first guide part (530) is located in front of the second guide part (540),

the second guide part (540) is connected with the discharging rail (550).

2. The stud feeder machine (1000) of claim 1, wherein the first guide portion (530) includes a first upwardly extending section (531), a first arcuate section (532), and a first forwardly extending end (533), the first upwardly extending section (531), the first arcuate section (532), and the first forwardly extending end (533) being connected in series.

3. The stud feed machine (1000) of claim 2 wherein the second guide portion (540) includes a second upwardly extending segment (541), a second arcuate segment (542), and a second forwardly extending end (543), the second upwardly extending segment (541), the second arcuate segment (542), and the second forwardly extending end (543) being connected in series.

4. The stud feeder machine (1000) according to claim 3, wherein the first upwardly extending section (531) is located more than half the length of the stud (100) in a fore-aft direction from the second upwardly extending section (541).

5. The stud feeder machine (1000) according to claim 4, wherein a distance in a forward-to-rearward direction of the first upwardly extending section (531) and the second upwardly extending section (541) is less than a sum of a length of the thread section (110) and a length of the screw section (120).

6. The stud feeder machine (1000) according to claim 5, wherein the second upwardly extending section (541) is located rearward of the third opening (513).

7. The stud feeder machine (1000) according to claim 1, wherein the studs (100) are hex copper studs.

8. The stud feeder (1000) according to claim 1, wherein a stop (610) for preventing the stud (100) from tilting is provided on the outfeed track (550) upstream of the stock tank (600).

9. The stud feeder machine (1000) according to claim 1, wherein the screen ramp (400) has a first screen section (410) connected to the selector opening (510) and a second screen section (420) connected to the first screen section (410), the first screen section (410) having a width that is smaller than the width of the second screen section (420), the first screen section (410) having a width (Dc) that is 1.1 to 1.3 times the diameter (Da) of the inscribed circle of the screw section (120) of the stud (100); the width (Db) of the second screening section (420) is more than 1.5 times of the diameter (Da) of the inscribed circle of the screw section (120) of the stud (100).

10. A screw machine, characterized by comprising a stud feeder (1000) according to claim 1.

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