CN210755666U

CN210755666U - Bar adding device

Info

Publication number: CN210755666U
Application number: CN201921548979.0U
Authority: CN
Inventors: 郑金良
Original assignee: HANGZHOU ZHENGCHIDA PRECISION MACHINERY CO Ltd
Current assignee: HANGZHOU ZHENGCHIDA PRECISION MACHINERY CO Ltd
Priority date: 2019-09-17
Filing date: 2019-09-17
Publication date: 2020-06-16
Anticipated expiration: 2029-09-17

Abstract

The utility model relates to a production facility of wrist-watch part. The purpose provides a bar adds device, and the device should be able to put into blevile of push with bar automation to improve the degree of automation of bar processing. The technical scheme is as follows: bar interpolation device, its characterized in that: the device comprises a ratchet mechanism, a plurality of belt wheel mechanisms arranged in parallel to the length direction of the material pushing device, a transmission shaft which is rotatably positioned on a first mounting plate and transmits power between the belt wheel mechanisms and the ratchet mechanism, and an air cylinder which drives the belt wheel mechanisms to move through the ratchet mechanism and the transmission shaft; each belt wheel mechanism comprises a first mounting plate fixed with the pushing device rack, a driving gear fixed on the transmission shaft, two belt wheels rotatably positioned on the first mounting plate, and a conveying belt sleeved on the two belt wheels; the conveying belt is provided with single-sided teeth, and the driving gear is arranged below the conveying belt and meshed with the single-sided teeth.

Description

Bar adding device

Technical Field

The utility model relates to a production facility of wrist-watch part specifically is device is added to bar.

Background

The parts inside the mechanical watch are fastened together through small screws, and the screws are mainly processed from bar stock (such as SK4F), and the specific processing steps are as follows: manually putting the bar 20 into a material pushing device 30, horizontally pushing the bar into a machine tool 40 by the material pushing device, and finally processing the end part of the bar into a screw by the machine tool; when the machine tool finishes processing one screw (the processed screw falls into the material box after being cut off and separated from the bar), the material pushing device horizontally pushes the bar into the machine tool for a certain distance to continue processing; the process is repeated until the whole bar becomes waste when the length of the bar is shortened to a certain length, and at the moment, the bar needs to be manually replaced by a new bar to realize continuous production. The bar stock needs to be manually replaced by special personnel, so that time and labor are wasted, the production cost is increased, and further improvement is needed.

SUMMERY OF THE UTILITY MODEL

The utility model aims at overcoming not enough among the above-mentioned background art, providing a bar adds the device, the device should be able to put into blevile of push with the bar is automatic to improve the degree of automation of bar processing.

The technical scheme of the utility model is that:

bar interpolation device, its characterized in that: the device comprises a ratchet mechanism, a plurality of belt wheel mechanisms arranged in parallel to the length direction of the material pushing device, a transmission shaft which is rotatably positioned on a first mounting plate and transmits power between the belt wheel mechanisms and the ratchet mechanism, and an air cylinder which drives the belt wheel mechanisms to move through the ratchet mechanism and the transmission shaft;

each belt wheel mechanism comprises a first mounting plate fixed with the pushing device rack, a driving gear fixed on the transmission shaft, two belt wheels rotatably positioned on the first mounting plate, and a conveying belt sleeved on the two belt wheels; the conveying belt is provided with single-sided teeth, and the driving gear is arranged below the conveying belt and meshed with the single-sided teeth;

the cylinder is fixed with the pushing device through a second mounting plate; the ratchet mechanism comprises a ratchet fixed on the transmission shaft, a push plate, a pawl and a tension spring, wherein one end of the push plate is rotatably positioned on the transmission shaft, the other end of the push plate is pushed by the air cylinder, the pawl is rotatably positioned on the push plate and matched with the ratchet, and the tension spring applies tension to the second mounting plate and the pawl at two ends.

A positioning plate for keeping the position of the bar is arranged above a right belt wheel of the belt wheel mechanism, and a guide plate for guiding the rolling position of the bar is arranged below the right belt wheel of the belt wheel mechanism; the positioning plate is in a circular arc shape which is matched with the shape of the belt wheel; the guide plates are arranged obliquely.

The axis of the belt wheel is parallel to the length direction of the material pushing device;

the push plate is provided with a sliding groove, a push rod penetrating through the sliding groove is fixed on a piston rod of the air cylinder, and the push rod is provided with a pair of clamping blocks used for pushing and pulling the push plate.

A baffle is also arranged between the belt wheel mechanism and the ratchet wheel mechanism; the baffle is fixed with the pushing device through a third mounting plate.

The number of the belt wheel mechanisms is 2-5.

The utility model has the advantages that:

the utility model discloses a cylinder drives band pulley mechanism intermittent motion to blevile of push automatic feed with ratchet's cooperation, can guarantee that the bar accuracy is put into blevile of push, has realized the serialization production of bar processing to improve production efficiency, simplified the producers configuration, reduced manufacturing cost.

Drawings

Fig. 1 is a schematic top view of the present invention.

Fig. 2 is a schematic top view of the belt pulley mechanism of the present invention.

Fig. 3 is a schematic view of the front view structure of the belt wheel mechanism of the present invention.

Fig. 4 is a left side view structure diagram of the middle baffle of the present invention.

Fig. 5 is a schematic front view of the ratchet mechanism of the present invention.

Fig. 6 is a schematic front view of the ratchet mechanism of the present invention (omitting the ratchet).

Fig. 7 is a schematic top view of the ratchet mechanism of the present invention.

Detailed Description

The present invention will be further described with reference to the drawings attached to the specification, but the present invention is not limited to the following embodiments.

As shown in fig. 1, the bar stock release device comprises a plurality of belt wheel mechanisms, a ratchet mechanism, a transmission shaft 1, a cylinder 2 and a baffle 16.

The cylinder, the ratchet wheel mechanism, the baffle plate and the belt wheel mechanism are all fixed on the side face of the pushing device rack, the belt wheel mechanism is arranged in parallel to the length direction L (vertical direction in figure 1) of the pushing device, the transmission shaft 1 is rotatably positioned on the first mounting plate and transmits power between the belt wheel mechanism and the ratchet wheel mechanism, and the cylinder drives the belt wheel mechanism through the ratchet wheel mechanism and the transmission shaft.

The cylinder is fixed with the pushing device rack through a second mounting plate 9, a push rod 14 is fixed on a piston rod of the cylinder, two clamping blocks 15 are fixed on the push rod, and the telescopic direction of the piston rod of the cylinder is perpendicular to the length direction of the pushing device.

The ratchet mechanism comprises a ratchet wheel 10, a push plate 11, a pawl 12 and a tension spring 13. The ratchet wheel is fixed on the transmission shaft, the bottom end of the push plate is rotatably positioned (arranged in a hollow mode) on the transmission shaft, the push plate is provided with an axially extending sliding groove 11.1, the pawl 12 is rotatably hinged on the push plate, two ends of the tension spring 13 are respectively fixed with the second mounting plate and the pawl, and the claw tip of the pawl is pressed on the ratchet wheel and meshed with the ratchet of the ratchet wheel under the action of tension of the tension spring. The push rod passes through the sliding groove of the push plate, the two clamping blocks 15 on the push rod are respectively arranged on two sides of the push plate, and the push plate can be driven to swing when the air cylinder stretches.

The belt wheel mechanism comprises a first mounting plate 3, a driving gear 4, two belt wheels 5, a conveying belt 6, a positioning plate 7 and a guide plate 8. The first mounting plate is fixed with the pushing device rack, the belt wheels are rotatably positioned on the first mounting plate, and the two belt wheels are arranged at the same horizontal position.

The transmission belt is sleeved on the belt wheels, single-sided teeth are arranged on the transmission belt, the tooth pitch of the single-sided teeth is larger than the outer diameter of the bar, the driving gear is arranged below the central positions of the two belt wheels and meshed with the single-sided teeth of the transmission belt, and the driving gear is fixed with the transmission shaft; a positioning plate 7 is arranged above the right belt wheel, a guide plate 8 is arranged below the right belt wheel, the positioning plate is in a circular arc shape which is matched with the appearance of the belt wheel, the guide plate is obliquely arranged, and the positioning plate and the guide plate are both fixed with the first mounting plate through a connecting frame 18; therefore, the bar stock cannot slide out freely when being conveyed to the end part of the conveyor belt and can only slide according to the route determined by the guide plate.

The axis of the belt wheel is parallel to the length direction of the material pushing device. The number of the belt wheel mechanisms is determined according to needs (the bar stock is soft, a plurality of belt wheel mechanisms are needed to be arranged to simultaneously support each part of the bar stock in a segmented mode), and 2-5 belt wheel mechanisms are generally arranged (three belt wheel mechanisms are arranged in fig. 1).

The baffle 16 is arranged between the belt wheel mechanism and the ratchet wheel mechanism, the baffle is fixed with the material pushing device through a third mounting plate 17, and the cross section of the baffle is L-shaped (shown in figure 4).

The utility model discloses a theory of operation is:

1. a plurality of bars 20 are placed on the transmission belt in parallel, the bars need to be placed in parallel to the length direction of the pushing device, a single-sided tooth of the transmission belt is arranged between every two bars at intervals, and the end parts of the bars lean against the baffle plates to ensure that all the bars are aligned;

2. the piston rod of the air cylinder retracts to drive the push plate to swing leftwards (an arrow A1 in fig. 5) through the push rod, and the push plate drives the transmission shaft to rotate anticlockwise for a certain angle (an arrow A2 in fig. 5) through the pawl and the ratchet wheel;

3. the transmission shaft simultaneously drives all the driving gears to rotate at a certain angle (an arrow A3 in fig. 3), the driving gears further drive each driving belt to rotate for a certain distance (an arrow A4 in fig. 3), the bars on the driving belts can gradually move to the positions of the positioning plates and pass through the lower parts of the positioning plates (the positioning plates can ensure that the bars on the inner cambered surfaces of the positioning plates cannot slide outwards at will), and when the bars rotate out of the positioning plates, the bars fall onto the guide plates on the lower parts and finally slide into the material pushing device along the guide plates;

4. when a piston rod of the air cylinder extends out, the push plate is driven to return, when the push plate swings, the pawl slides along the ratchet wheel, the transmission shaft is still, and the belt wheel mechanism does not work; when the cylinder stretches out and draws back once (the transmission shaft and the driving gear rotate once), one bar falls into the material pushing device.

Claims

1. Bar interpolation device, its characterized in that: the device comprises a ratchet mechanism, a plurality of belt wheel mechanisms arranged in parallel to the length direction of a material pushing device (30), a transmission shaft (1) which is rotatably positioned on a first mounting plate (3) and transmits power between the belt wheel mechanisms and the ratchet mechanism, and an air cylinder (2) which drives the belt wheel mechanisms to move through the ratchet mechanism and the transmission shaft;

each belt wheel mechanism comprises a first mounting plate fixed with the pushing device rack, a driving gear (4) fixed on the transmission shaft, two belt wheels (5) rotatably positioned on the first mounting plate, and a conveying belt (6) sleeved on the two belt wheels; the conveying belt is provided with single-sided teeth, and the driving gear is arranged below the conveying belt and meshed with the single-sided teeth;

the air cylinder is fixed with the material pushing device through a second mounting plate (9); the ratchet mechanism comprises a ratchet wheel (10) fixed on the transmission shaft, a push plate (11) with one end rotatably positioned on the transmission shaft and the other end pushed by the cylinder, a pawl (12) rotatably positioned on the push plate and matched with the ratchet wheel, and a tension spring (13) with two ends respectively applying tension to the second mounting plate and the pawl.

2. The bar adding apparatus as defined in claim 1, wherein: a positioning plate (7) for keeping the position of the bar stock is arranged above a right belt wheel of the belt wheel mechanism, and a guide plate (8) for guiding the rolling position of the bar stock is arranged below the right belt wheel of the belt wheel mechanism; the positioning plate is in a circular arc shape which is matched with the shape of the belt wheel; the guide plates are arranged obliquely.

3. The bar adding apparatus as defined in claim 2, wherein: the axis of the belt wheel is parallel to the length direction of the pushing device.

4. A bar stock adding apparatus as defined in claim 3, wherein: the push plate is provided with a sliding groove (11.1), a push rod (14) penetrating through the sliding groove is fixed on a piston rod of the air cylinder, and the push rod is provided with a pair of clamping blocks (15) used for pushing and pulling the push plate.

5. The bar adding apparatus as defined in claim 4, wherein: a baffle (16) is also arranged between the belt wheel mechanism and the ratchet wheel mechanism; the baffle is fixed with the pushing device through a third mounting plate.

6. The bar adding apparatus as defined in claim 5, wherein: the number of the belt wheel mechanisms is 2-5.