JPH04246795A - Normal/defective condition decision device for component and counter with the same - Google Patents

Abstract

PURPOSE:To offer a machine capable of performing normal/defective condition deciding and counting work for a component coherently. CONSTITUTION:One terminal of a pair of oblique rollers 10 is arranged at a feeder part in which the component 2 is reserved and from which it is supplied, and a decision part 20 which decides the normal/defective condition of the component 2 and an elimination means 21 which eliminates a defective component are provided at the tip of the rollers, and also, only the component decided as normal is counted by a counter part 32. Since no flaw is generated on the component, and decision for normal/defective condition can be performed on a pair of rollers in a moment, high reliability can be obtained in decision work for the component consisting of a head part and a foot part. Especially, uncertainty in the work for the component such as a screw or a bolt in which a washer is assembled, etc., can be completely eliminated, and it is possible to remarkably improve throughput for the whole machine, and to quickly respond to fast processing work.

Description

[Detailed description of the invention]

0001

[Field of Industrial Application] The present invention relates to a device for determining the quality of parts having a head and a leg such as screws, bolts, rivets, etc., and a machine for counting only the individually determined non-defective parts. In particular, it relates to a machine suitable for determining the quality and counting of parts with washers.

0002

[Prior Art] Traditionally, dedicated machines have been used to determine the quality of parts and to count these parts.
When determining the quality of parts such as screws or pins,
For example, you can separate and feed parts one by one to a rotary table and then judge the quality of the head height, leg length, shape, etc., or you can use a linear feeder instead of the rotary table and The quality of the parts fed to the feeder is judged on this feeder. On the other hand, when counting parts, it is generally popular to first feed the parts determined to be good in the above process into a parts feeder, then line them up and feed them to a counting device for counting. .

0003

[Problem to be Solved by the Invention] However, in the above-mentioned quality determination device, when parts are supplied to the rotary table, if the timing of the delivery is not good when inserting the parts into this table, the parts may get caught in the table. Parts are damaged. Furthermore, when using a straight feeder, the parts may sway and inspection cannot be performed accurately. Particularly, screws, bolts, etc. in which these parts incorporate washers are increasingly unstable, and are often determined to be defective, making adjustment difficult. Furthermore, when the parts are directly fed from the supply section to the roller, the parts are fed intertwined with each other, so it is necessary to make the roller longer to separate and align the parts. Additionally, parts often spill from the rollers when they are transferred from the supply section to the rollers.
It takes time and effort to feed these parts back into the supply section. Moreover, when counting the parts after this operation, the overall processing capacity is significantly reduced, creating a major problem in that the recent rapid shipping operations cannot cope with high-speed processing operations.

The first object of the present invention is to solve the above-mentioned problems and to accurately determine the quality of parts, and the second purpose is to accurately count the parts determined to be good and to operate with a simple structure. Providing reliable machinery.

[0005]

[Means for Solving the Problems] In order to achieve the first object, the present invention provides a pair of rollers 10 each having a variable speed and having a downwardly inclined tip on the discharge side of a feeder section connected to a supply section. The roller 10 is provided with a quality determining section 20, and a removing means 21 is disposed close to the quality determining section 20 to remove parts 2 that are determined to be defective.

In order to achieve the second object, one end of a pair of rollers 10 each having a variable speed and having a downwardly inclined tip is disposed on the discharge side of the supply means.
is provided with a quality determination section 20, and this quality determination section 20
A removing means 21 is disposed close to the roller 10 to remove the parts 2 determined to be defective, and a guide tube 30 is disposed close to the roller 10 to guide the good parts 2 that have passed through the quality determining section 20. A counting section 32 for counting the number of parts 2 passing through the guide tube 30 is attached to the guide tube 30. In addition, another invention is to use a pair of conical rollers in which the rollers face each other parallel to each other at equal intervals, are variable speed, and have their tips inclined downward, and the tip of the conical roller 10 is provided with a device for determining the quality of parts. At the same time, there is provided a removing means 21 which approaches the quality determining part 20 and takes out parts determined to be good. A guide tube 30 for guiding the parts 2 is provided, and a counting section 32 for counting the number of parts 2 passing through the guide tube 30 is attached to the guide tube 30. Yet another aspect of the invention is that the tip gradually widens so that the good parts 2 fall at an intermediate position on the discharge side of the supply means, and the defective parts fall and are removed at positions before and after that, and the speeds of the parts 2 are freely variable. In addition, a pair of cylindrical rollers 10 whose tips are inclined downward are disposed, and a guide tube 30 that approaches the cylindrical rollers 10 and guides the component 2 determined to be good, and a guide tube 30 that is sandwiched between the guide tubes 30 and 30, and a guide tube 30 that approaches the cylindrical rollers 10 and guides the parts 2 determined to be good. A discharge pipe 33 for discharging parts 2 determined to be good products
On the other hand, a counting section 32 for counting the number of parts 2 passing through the guide tube 10 is attached to the guide tube 10.

[0007]

[Operation] When the part 2 is loaded into the supply means and a start signal is input, the part 2 enters between the pair of rollers 10 from the supply means. As a result, the parts 2 are all aligned and fed obliquely downward and forward while their legs are inclined in one direction. In addition, this supply means has a feeder connected to the supply section, so
Completely aligned and fed to roller 10. This roller 10 is equipped with a determination unit 20 that determines the quality of the parts 2 that are supplied there, so the parts 2 that pass therethrough are disposed.
are judged as good or defective. The parts 2 determined to be defective are immediately removed from the removing means 21, and only the good parts enter the guide tube 30. At this point, part 2 is counted.

[0008]

DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below with reference to the drawings. In FIG. 1, 1 is a machine base, and this machine base 1 includes parts 2 consisting of heads and legs of screws, bolts, rivets, etc.
A supply section 3 is attached for supplying. This supply section 3
is connected to one end of a linear feeder 4 placed in front, and this linear feeder 4 is fixed to the machine base 1 substantially horizontally. These supply section 3 and linear feeder 4 constitute a supply means. Further, at the other end of the linear feeder 4, a pair of left and right conical rollers 10 whose tips are inclined downward are arranged, and as shown in FIG. positioned. This conical roller 10 gradually becomes thinner as it reaches the tip, and the bearing member 1
1, it is rotatably supported by a cantilever. Motors (not shown) that transmit rotation to the conical rollers 10 are fixed to this bearing member 11, and these motors are configured to rotate at different speeds in a direction in which the component 2 that enters between opposing surfaces is lifted. be. In this embodiment, the conical roller 1
0 are driven by motors with different rotation speeds, but instead of this, a belt and a pulley may be driven by a single motor.

On the other hand, as shown in FIG. 2, the bearing member 11 is attached to an adjustment stand 12 fixed to the machine stand 1 so that its height can be adjusted freely.
The height can be moved in an arc around the tip. Further, when adjusting the height of the conical roller 10, the supply section 3 and the linear feeder 4 can also be adjusted accordingly. Further, at the tip of this conical roller 10, a part 2 is placed on the center line between the two conical rollers 10 facing each other.
A quality determination unit 20 for determining the height of the legs and a quality determination unit 20 for determining the quality of the length of the legs are disposed, respectively, and a removal unit 20 for suctioning and removing parts determined to be defective is located at these positions. Means 21 are attached. Further, the conical roller 1
In front of 0 is an entrance 31 of a guide tube 30 that guides the component 2 determined to be good by the quality determining section 20 to a predetermined position. A counting section 32 for counting the passage of parts 2 is attached to this guide tube 30, and the counted parts 2 are guided by this guide tube 30 and enter a case 5 placed on the machine base 1. be.

Next, the operation of this embodiment will be explained. When a start signal is input after the component 2 is input into the supply section 3, the component 2 is supplied from the supply section 3 to the linear feeder 4. Inside this linear feeder 4, the parts 2 are lined up with their heads facing up and fed forward.
is a pair of conical rollers 1 that are already rotating at equal intervals.
fall between 0. At this time, in advance, this conical roller 10
Since the parts 2 are rotating at different rotational speeds, the parts 2 that have entered the parts 2 are tilted in a certain direction. This conical roller 10 moves the part 2 forward at an appropriate speed.
Since the slope of the part 2 is adjusted and fixed in advance, the part 2 flows down with the head upward without being scattered.

[0011] When the part 2 flows down and reaches the lower part of the determining section 20 at the tip, the determining section 20 determines whether the component 2 is a good product or a defective product based on whether the head height of the component 2 is higher or lower than a predetermined value. is done. The parts 2 determined to be non-defective here are continuously fed forward in this state and enter the guide tube 30. On the other hand, the parts 2 determined to be defective are immediately removed by the removal means 2.
1 is activated and part 2 is sucked out. The passage of the non-defective products thus supplied is counted by the counting section 32 within the guide tube 30. When the preset number of supplies is reached, this signal causes the conical roller 10 to stop rotating, thereby stopping the supply of parts 2 from the conical roller 10. After this, the guide tube 30 of the machine base 1
When a new case 5 is prepared below and a start signal is input again, the above operations are repeated, and a predetermined number of good parts 2 can be packed into boxes. Here, the case 5 is placed below the guide cylinder 30 and a predetermined amount of parts 2 are supplied thereto, but instead of this, if a packaging machine (not shown) is installed here, the parts 2 are This makes it possible to perform all tasks from sorting to packaging.

Next, FIGS. 4 and 5 show another embodiment of the present invention, in which a cylindrical roller 10 is arranged in place of the conical roller 10, and this cylindrical roller 10 has an outer diameter of the head of the component 2. The tip has an interval that gradually widens so that the front and back parts are defective products, with an intermediate position where the range of good products is set in advance set in between. That is, at the rear part of the intermediate position, parts 2 whose head diameter is smaller than a predetermined size are determined to be defective, and at the front part of the intermediate position, parts 2 whose head diameter is larger than the predetermined size are determined to be defective. . Further, a guide tube 30 for guiding the component 2 determined to be a good product is arranged below this intermediate position, and this inner tube 30 has a counting section 32 for counting the passage of the component 2 as in the previous embodiment. is installed. Furthermore, discharge tubes 33 are attached to the front and rear sides of the guide tube 30.

Furthermore, FIG. 6 shows another embodiment of the present invention, in which a conical roller 10 is directly arranged in the supply section 3 without connecting the linear feeder 4, and this conical roller 10 is also supplied. The counting section 32 counts the number of parts 2 that come, and the parts 2 are configured to pass between a light source 40 and a sensor 41 that detects the brightness of the light from the light source 40. In these embodiments, the supply means is composed of the supply section 3 and the linear feeder 4, but the linear feeder 4 may be removed and the rollers 10 may be placed directly. Instead, a chute that allows the parts 2 to flow down by gravity may also be used as the feeder section.

[0014]

As is clear from the embodiments described above, the present invention has a pair of rollers 10 disposed in a supply means for storing a large number of parts 2, and further has this roller determine whether the parts 2 are good or defective. Since the roller is equipped with a quality judgment section 20 to remove defective products and a removal means to remove defective products, the parts are loosened by the supply means in advance, so the overall length of the roller is shortened, and there are no parts flying off from this roller. Therefore, the device can be made smaller and there is no need to re-insert parts. In addition, the parts will not get caught in the transfer section from one device to another, and the parts will not be damaged. Furthermore, since the determination of good and defective products is made instantaneously by the part fed by a pair of rollers, the parts do not wobble during the judgment process of parts consisting of the head and legs, and reliability is improved. A high pass/fail judgment can be obtained.

Furthermore, since only good parts are guided and counted in the counting section in this way, it is possible to automate the process from determining whether parts are good or bad to counting parts, greatly increasing the processing capacity of the entire machine. This has improved the ability to quickly respond to high-speed processing operations in today's rapid shipping operations. In particular, there is no instability in screws, bolts, etc. in which this component incorporates washers, and remarkable effects such as accurate and good quality products can be obtained.

[Brief explanation of the drawing]

FIG. 1 is an overall front view showing an embodiment of the present invention.

FIG. 2 is an enlarged view of the main part of FIG. 1;

FIG. 3 is a plan view of the main part of FIG. 2;

FIG. 4 is an overall front view showing another embodiment of the present invention.

FIG. 5 is a plan view of the main part of FIG. 4;

FIG. 6 is an overall front view showing another embodiment of the present invention.

[Explanation of symbols]

1 Machine stand 2 Parts 3 Supply section 4 Straight feeder 5 Case 10 Conical roller, cylindrical roller 11 Bearing member 12 Adjustment stand 20 Good/fail judgment section 21　Removal means 30 Guide tube 31 Entrance 32 Counting part 33 Discharge tube 40 Light source 41 Sensor

Claims (5)

[Claims] 1. One end of a pair of rollers (10) each having a variable speed and having a downwardly inclined tip is disposed on the discharge side of a feeder section connected to a supply section (3).
) is provided with a quality determining section (20), and a removing means (21) is disposed close to this quality determining section (20) to remove parts (2) that are determined to be defective. Equipment for determining quality of parts. 2. The rollers according to claim 1 are a pair of conical rollers (10) that face each other parallel to each other at equal intervals, are variable speed, and have tips inclined downward; Part quality judgment part (20) at the tip
2. The device for determining quality of parts according to claim 1, further comprising: a. 3. One end of a pair of rollers (10) each having a variable speed and having a downwardly inclined tip is disposed on the discharge side of the supply means, and a component quality determination unit (20) is disposed on the roller (10).
), and a removing means (21) for removing the parts (2) which are determined to be defective is arranged close to the quality determining section (20), while a removing means (21) is arranged at a position close to the roller (10). A guide tube (30) is provided to guide the good parts (2) that have passed through the quality determination section (20).
A counting machine with a quality determining device, characterized in that a counting part (32) for counting the number of parts (2) passing through the part (0) is attached to the part (2). 4. A pair of conical rollers (10) are disposed on the discharge side of the supply means, facing each other parallel to each other at equal intervals, each having a variable speed and having a tip inclined downward. At the tip of the part is a part quality judgment part (20
), and a removing means (21) is provided which approaches the quality determining section (20) and removes the parts (2) that are determined to be defective. A guide tube (30) is provided to guide the good parts (2) that have passed the determination section (20), and the guide tube (30)
A counting unit (
32) A counting machine with a quality determining device. 5. The tip gradually widens so that good parts fall at an intermediate position on the discharge side of the supply means, and defective parts fall and are removed at positions before and after that, and each of the tips is variable in speed. A pair of cylindrical rollers (10) are arranged with the cylindrical rollers (10) inclined downward, and a guide tube (30) that approaches the cylindrical rollers (10) and guides the part (2) determined to be good. Discharge tubes (33) for discharging parts determined to be defective are provided on both sides of the guide tube (30), and on the other hand, parts (2) that pass through the guide tube (30) are provided.
) A counting machine with a quality determining device, characterized in that a counting part (32) is attached to count the number of pieces.