Automatic PIN folding machine and PIN folding method thereof

Abstract

The present invention discloses an automatic PIN folding machine, comprising: a feeding device, a conveying track and a folding and shearing device, wherein the feeding device is a device for arranging disordered PINs into PINs with the same direction and outputting them to the conveying track; the conveying track is a strip track for conveying PINs; the folding and shearing device is used to bend the PIN needles to a predetermined shape and cut off the excess material, and comprises a folding and shearing frame, a row PIN track, a bending mechanism, a shearing mechanism and a driving mechanism. The present invention automatically loads the disordered PINs after the feeding device arranges them, and the row PIN track in the folding and shearing device conveys the received PINs to the bending station in sequence. The bending mechanism and the shearing mechanism are driven by the driving mechanism to bend and shear the PINs in sequence, thereby obtaining the final product PIN, with simple configuration, high production efficiency and economical processing cost.

Description

Technical Field

[0001] The invention relates to a PIN processing device, in particular to an automatic PIN folding machine and a PIN folding method thereof. Background Art

[0002] PIN is a metal material used to complete the transmission of electrical signals. PIN is widely used in military industry, aerospace, mechanical processing, metallurgy, oil drilling, mining tools, electronic communications and other fields. With the continuous development and progress of science and technology, especially electronic technology, the market demand is becoming increasingly strong, and the demand for PIN is also increasing. In this context, how to improve the processing efficiency of PIN has always been a research hotspot for technicians.

[0003] In the prior art, although PIN bending is a simple task, it is mostly done manually. Some manufacturers are gradually trying to use shearing devices to semi-automatically or automatically shear PINs. However, for PINs, shearing the waste material is only a process. Most PINs need to be bent to varying degrees according to the application scenario. Therefore, the bending and shearing of the PIN have to be divided into independent processes, which has high labor costs and low efficiency. Therefore, in this technical field, there is an urgent need for an automatic PIN bending machine with simple configuration, low production cost, and the ability to simultaneously complete PIN bending and waste material shearing. Summary of the invention

[0004] In order to solve the above technical problems, the present invention proposes an automatic PIN folding machine which has a simple configuration, low production cost and can simultaneously complete the PIN bending and excess material shearing.

[0005] In order to achieve the above object, the technical solution of the present invention is as follows:

[0006] On the one hand, the present invention discloses an automatic PIN folding machine, comprising: a feeding device, a conveying track and a folding and shearing device, wherein the feeding device comprises a feeding port and a discharging port, and is a device for arranging disordered PINs into PINs with the same direction and outputting them to the conveying track, wherein the PIN comprises a mother PIN body and a PIN needle connected to the mother PIN body; the conveying track comprises a feeding end and a discharging end, wherein the feeding end is connected to the discharging port, and the discharging end is connected to the folding and shearing device; the conveying track is a strip track for conveying PINs; the folding and shearing device is used to bend the PIN needles to a predetermined shape and shear off the excess material, and comprises a folding and shearing frame, a row of P IN track, bending mechanism, shearing mechanism and driving mechanism; the folding and shearing frame is used to carry the row PIN track, bending mechanism, shearing mechanism and driving mechanism; the row PIN track includes a material receiving port and a material discharging port, and is fixed on the folding and shearing frame in the length direction of the material receiving port and the material discharging port from top to bottom; the bending mechanism is centrally symmetrically arranged relative to the length direction of the row PIN track; the shearing mechanism is arranged on the left or right side of the row PIN track, and is arranged in cooperation with the bending mechanism to shear the residual material after the PIN pin is bent to a predetermined shape; the driving mechanism is respectively connected to the bending mechanism and the shearing mechanism.

[0007] The beneficial effect of adopting the above technical scheme is: it fully considers the problems of independent bending and shearing processes of PIN in the prior art, low production and processing efficiency, and high labor cost, and the disordered PIN is sorted out by the feeding device and then automatically loaded, and the PIN track in the folding and shearing device transports the received PIN to the bending station in sequence, and the bending mechanism and the shearing mechanism are driven by the driving mechanism to bend and shear the PIN in turn, so as to obtain the final product PIN, and the whole process is automatically completed by the automatic PIN folding machine, saving labor, and the equipment itself has a simple configuration and low production cost. Therefore, the automatic PIN folding machine of this technical scheme can greatly improve production efficiency while meeting the functional requirements of PIN folding, reduce equipment procurement costs and labor costs, and is both practical and economical.

[0008] As a further improvement of the present invention, the loading device also includes a loading frame, a loading tray and a loading drive element; the loading tray is a hollow tray with a spiral conveying track inside, and the loading tray is fixed above the loading frame; the loading drive element is connected to the loading tray.

[0009] The beneficial effect of adopting the above technical solution is: introducing a loading tray including a spiral conveying track into the loading device greatly prolongs the conveying time of the PINs, provides sufficient time and distance for arranging them into a state with a consistent orientation, and can effectively improve the PIN arrangement effect and success rate.

[0010] As a further improvement of the present invention, the loading drive element is an eccentric motor, and the eccentric motor provides a vibration driving force for the loading tray.

[0011] The beneficial effect of adopting the above technical solution is: the setting of the eccentric motor provides a vibration driving force for the loading tray, so that the loading tray is subjected to regular vibration, driving the PIN to gradually move from the lower end of the spiral conveyor track to the top, and finally output from the top discharge port, and the operation is smooth.

[0012] As a further improvement of the present invention, the feed end of the conveying track and the discharge port of the loading device are hingedly connected, and the discharge end of the conveying track and the receiving port of the PIN track are detachably connected.

[0013] The beneficial effect of adopting the above technical solution is: the conveying track is set to be hinged at one end and detachably connected at the other end, so that the feeding device and the folding and shearing device can be flexibly coordinated and interchangeable, especially for multiple automatic PIN folding machines, the advantage of interchangeability is more obvious.

[0014] As a further improvement of the present invention, the bending mechanism includes a bending mold, a first resetting element and a first transmission assembly; the bending mold includes a left bending mold and a right bending mold, the left bending mold and the right bending mold are symmetrically arranged along the length direction of the row PIN track, and are respectively connected to the driving mechanism through the first transmission assembly; one end of the first resetting element is connected to the bending mold, and the other end is connected to the folding shear frame.

[0015] The beneficial effect of adopting the above technical solution is: the introduction of bending molds in the bending mechanism greatly expands the application scope of the PIN folding machine. When it is necessary to bend PINs of different shapes, only the bending molds need to be replaced to meet the use requirements, which greatly reduces the number of equipment and saves equipment procurement costs.

[0016] As a further improvement of the present invention, the shearing mechanism includes a shearing tool, a second resetting element and a second transmission assembly; the shearing tool is matched with the bending left mold or the bending right mold, and is used to shear the residual material after the PIN pin is bent to a predetermined shape, and is connected to the driving mechanism through the second transmission assembly; one end of the second resetting element is connected to the shearing tool, and the other end is connected to the shearing frame.

[0017] The beneficial effect of adopting the above technical solution is that the shearing tool and the bending die are arranged in combination, and the excess material shearing action can be completed while bending the PIN, which effectively shortens the unit processing time of the PIN, makes the process more compact, and effectively improves production efficiency.

[0018] As a further improvement of the present invention, the automatic PIN folding machine also includes a PIN collecting guide groove, which is arranged at the discharge port of the PIN track to collect the PINs that have been bent and sheared and guide the PINs to a predetermined position.

[0019] The beneficial effect of adopting the above technical solution is that the setting of the PIN guide groove can collect the final product PINs in an orderly manner and guide them to the designated position, which is convenient for the storage or packaging of the PINs.

[0020] As a further improvement of the present invention, the automatic PIN folding machine also includes a waste recovery device, which includes a waste recovery chamber arranged on the periphery of the shearing mechanism and a blocking cover body erected above the waste recovery chamber, for recovering the residual material after the PIN needle is sheared and preventing the residual material from splashing.

[0021] The beneficial effect of adopting the above technical solution is that the waste recovery device can effectively collect the residual materials cut by PIN, avoid the residual materials from splashing around and affecting the normal operation of other devices, and improve the processing environment of PIN.

[0022] As a further improvement of the present invention, a folding and shearing start position and a loading start position are provided on the PIN track, and the automatic PIN folding machine also includes a folding and shearing sensing switch and a loading sensing switch. The folding and shearing sensing switch is arranged at the folding and shearing start position to start or stop bending the PIN pin to a predetermined shape and shearing the excess material, and the loading sensing switch is arranged at the loading start position to start or stop loading.

[0023] The beneficial effects of adopting the above technical solution are: the setting of the folding and shearing sensing switch and the feeding sensing switch can grasp the feeding status and the folding and shearing status in real time, automatically complete the automatic switching between the folding and shearing status and the non-folding and shearing status, and the feeding status and the non-feeding status, eliminating manual operation and saving energy and reducing consumption.

[0024] As a further improvement of the present invention, the automatic PIN folding machine also includes a control unit and an alarm; the control unit is connected to the driving mechanism, the feeding driving element, the folding and shearing sensing switch and the feeding sensing switch by wire or wireless; the alarm is connected to the control unit by wire or wirelessly to alarm for abnormal working conditions of the automatic PIN folding machine.

[0025] The beneficial effects of adopting the above technical solution are: the control unit can receive the switch signals from the folding and shearing sensing switch and the feeding sensing switch in real time, and issue start or stop instructions to the driving mechanism or the feeding driving element according to the received switch signals; when the automatic PIN folding machine encounters abnormal situations such as feeding jamming, bending and shearing failure, etc. during the feeding or PIN folding process, it receives the alarm signal of the control unit and issues an alarm, calling for manual processing in a timely manner.

[0026] On the other hand, the present invention also discloses an automatic PIN folding method, comprising the following steps:

[0027] S1, start the power supply, add PINs to the feeding device, the feeding device arranges the PINs in the same direction, and transports them to the row PIN track in sequence through the conveying track;

[0028] S2. When the number of PINs in the row of PIN tracks increases to a predetermined folding and shearing quantity standard, the driving mechanism of the folding and shearing device is started to bend the PINs and shear off the excessively long parts of the PINs;

[0029] S3, when the number of PINs in the row of PIN tracks is reduced to a predetermined loading quantity standard, the driving mechanism of the folding and shearing device is turned off to wait for loading;

[0030] S4. Repeat steps S1-S3 until the predetermined PIN folding task is completed and the power is turned off.

[0031] The beneficial effects of adopting the above technical solution are: automatically arranging the PINs into a state with consistent direction is an important prerequisite for the PIN folding machine to maintain a high success rate in folding the PINs; in the folding and shearing process, bending and shearing are performed simultaneously, which helps to shorten the processing time of a single PIN and greatly improve the production efficiency of the PIN; in addition, standardized PIN folding methods help to improve the quality stability of PIN bending and shearing. BRIEF DESCRIPTION OF THE DRAWINGS

[0032] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0033] Figure 1 It is a schematic diagram of the configuration of the automatic PIN folding machine of the present invention.

[0034] Figure 2 It is a top view schematic diagram of the folding and shearing device of the present invention.

[0035] Figure 3 It is a schematic diagram of the PIN of the present invention after being bent.

[0036] Figure 4 It is a schematic diagram of another configuration of the automatic PIN folding machine of the present invention.

[0037] The corresponding parts represented by the numbers in the figure are as follows:

[0038] PIN 01; female PIN body 011; PIN pin 012; feeding device 1; feeding port 11; discharging port 12; feeding frame 13; feeding tray 14; feeding drive element 15; conveying track 2; feeding end 21; discharging end 22; folding and shearing device 3; folding and shearing frame 31; PIN track 32; receiving port 321; discharging port 322; bending mechanism 33; bending mold 331; bending left mold 3311; bending right mold 3312; first reset element 332; first transmission assembly 333; shearing mechanism 34; shearing tool 341; second reset element 342; second transmission assembly 343; drive mechanism 35; PIN collecting guide groove 4; waste recovery device 5; waste recovery chamber 51; enclosure cover 52; folding and shearing induction switch 6; feeding induction switch 7; control unit 8 alarm 9. DETAILED DESCRIPTION

[0039] In order to facilitate the understanding of the present invention, the present invention will be described in more comprehensive and detailed manner in conjunction with the accompanying drawings and preferred embodiments below, but the protection scope of the present invention is not limited to the following specific embodiments. It should be noted that the embodiments and features in the embodiments of the present invention can be combined with each other without conflict.

[0040] In order to achieve the purpose of the present invention, the technical solution provided by the present invention is:

[0041] In some embodiments, Figure 1-3As shown, an automatic PIN folding machine comprises: a feeding device 1, a conveying track 2 and a folding and shearing device 3. The feeding device 1 comprises a feeding port 11 and a discharging port 12, and is a device for arranging disordered PINs 01 into PINs 01 with the same direction and outputting them to the conveying track 2. The PINs 01 comprise a female PIN body 011 and a PIN needle 012 connected to the female PIN body 011; the conveying track 2 comprises a feeding end 21 and a discharging end 22, the feeding end 21 is connected to the discharging port 12, and the discharging end 22 is connected to the folding and shearing device 3; the conveying track 2 is for conveying PINs 01 strip track; the folding and shearing device 3 is used to bend the PIN pin 012 to a predetermined shape and cut off the excess material, including a folding and shearing frame 31, a row PIN track 32, a bending mechanism 33, a shearing mechanism 34 and a driving mechanism 35; the folding and shearing frame 31 is used to carry the row PIN track 32, the bending mechanism 33, the shearing mechanism 34 and the driving mechanism 35; the row PIN track 32 includes a material receiving port 321 and a material discharging port 322, and is fixed on the folding and shearing frame 31 in the length direction of the material receiving port 321 and the material discharging port 322 from top to bottom; the bending mechanism 33 is centrally symmetrically arranged with respect to the length direction of the row PIN track 32; the shearing mechanism 34 is arranged on the left or right side of the row PIN track 32, and is arranged in cooperation with the bending mechanism 33 to shear the excess material after the PIN pin 012 is bent to a predetermined shape; the driving mechanism 35 is connected to the bending mechanism 33 and the shearing mechanism 34 respectively.

[0042] The beneficial effect of adopting the above technical scheme is: it fully considers the problems of independent bending and shearing processes of PIN in the prior art, low production and processing efficiency, and high labor cost, and the disordered PIN is sorted out by the feeding device and then automatically loaded, and the PIN track in the folding and shearing device transports the received PIN to the bending station in sequence, and the bending mechanism and the shearing mechanism are driven by the driving mechanism to bend and shear the PIN in turn, so as to obtain the final product PIN, and the whole process is automatically completed by the automatic PIN folding machine, saving labor, and the equipment itself has a simple configuration and low production cost. Therefore, the automatic PIN folding machine of this technical scheme can greatly improve production efficiency while meeting the functional requirements of PIN folding, reduce equipment procurement costs and labor costs, and is both practical and economical.

[0043] In other embodiments, Figure 1 As shown, the loading device 1 also includes a loading frame 13, a loading tray 14 and a loading drive element 15; the loading tray 14 is a hollow tray with a spiral conveying track inside, and the loading tray 14 is fixed above the loading frame 13; the loading drive element 15 is connected to the loading tray 14.

[0044] The beneficial effect of adopting the above technical solution is: introducing a loading tray including a spiral conveying track into the loading device greatly prolongs the conveying time of the PINs, provides sufficient time and distance for arranging them into a state with a consistent orientation, and can effectively improve the PIN arrangement effect and success rate.

[0045] In other embodiments, Figure 1 As shown, the loading drive element 15 is an eccentric motor, which provides a vibration driving force for the loading tray 14 .

[0046] The beneficial effect of adopting the above technical solution is: the setting of the eccentric motor provides a vibration driving force for the loading tray, so that the loading tray is subjected to regular vibration, driving the PIN to gradually move from the lower end of the spiral conveyor track to the top, and finally output from the top discharge port, and the operation is smooth.

[0047] In other embodiments, Figure 1 As shown, the feed end 21 of the conveying track and the discharge port 12 of the loading device are hingedly connected, and the discharge end 22 of the conveying track and the receiving port 321 of the PIN track are detachably connected.

[0048] The beneficial effect of adopting the above technical solution is: the conveying track is set to be hinged at one end and detachably connected at the other end, so that the feeding device and the folding and shearing device can be flexibly coordinated and interchangeable, especially for multiple automatic PIN folding machines, the advantage of interchangeability is more obvious.

[0049] In other embodiments, Figure 2 As shown, the bending mechanism 33 includes a bending mold 331, a first reset element 332 and a first transmission assembly 333; the bending mold 331 includes a left bending mold 3311 and a right bending mold 3312, the left bending mold 3311 and the right bending mold 3312 are symmetrically arranged along the length direction of the PIN track 32, and are respectively connected to the driving mechanism 35 through the first transmission assembly 333; one end of the first reset element 332 is connected to the bending mold 331, and the other end is connected to the folding shear frame 31.

[0050] The beneficial effect of adopting the above technical solution is: the introduction of bending molds in the bending mechanism greatly expands the application scope of the PIN folding machine. When it is necessary to bend PINs of different shapes, only the bending molds need to be replaced to meet the use requirements, which greatly reduces the number of equipment and saves equipment procurement costs.

[0051] In other embodiments, Figure 2As shown, the shearing mechanism 34 includes a shearing tool 341, a second resetting element 342 and a second transmission assembly 343; the shearing tool 341 is matched with the bending left mold 3311 or the bending right mold 3312, and is used to shear the residual material after the PIN pin 012 is bent to a predetermined shape, and is connected to the driving mechanism 35 through the second transmission assembly 343; one end of the second resetting element 342 is connected to the shearing tool 341, and the other end is connected to the shearing frame 31.

[0052] The beneficial effect of adopting the above technical solution is that the shearing tool and the bending die are arranged in combination, and the excess material shearing action can be completed while bending the PIN, which effectively shortens the unit processing time of the PIN, makes the process more compact, and effectively improves production efficiency.

[0053] In other embodiments, Figure 4 As shown, the automatic PIN folding machine also includes a PIN collecting guide groove 4, which is arranged at the discharge port 322 of the PIN track 32, for collecting the PIN 01 that has been bent and sheared, and guiding the PIN 01 to a predetermined position.

[0054] The beneficial effect of adopting the above technical solution is that the setting of the PIN guide groove can collect the final product PINs in an orderly manner and guide them to the designated position, which is convenient for the storage or packaging of the PINs.

[0055] In other embodiments, Figure 4 As shown, the automatic PIN folding machine also includes a waste recovery device 5, which includes a waste recovery chamber 51 arranged on the periphery of the shearing mechanism 34 and a surrounding cover 52 erected above the waste recovery chamber 51, for recovering the residual material after the PIN needle 012 is sheared and preventing the residual material from splashing.

[0056] The beneficial effect of adopting the above technical solution is that the waste recovery device can effectively collect the residual materials cut by PIN, avoid the residual materials from splashing around and affecting the normal operation of other devices, and improve the processing environment of PIN.

[0057] In other embodiments, Figure 4 As shown, a folding and shearing start position and a feeding start position are provided on the PIN track 32, and the automatic PIN folding machine also includes a folding and shearing sensing switch 6 and a feeding sensing switch 7. The folding and shearing sensing switch 6 is set at the folding and shearing start position to start or stop bending the PIN pin 012 to a predetermined shape and shearing the excess material, and the feeding sensing switch 7 is set at the feeding start position to start or stop feeding.

[0058] The beneficial effects of adopting the above technical solution are: the setting of the folding and shearing sensing switch and the feeding sensing switch can grasp the feeding status and the folding and shearing status in real time, automatically complete the automatic switching between the folding and shearing status and the non-folding and shearing status, and the feeding status and the non-feeding status, eliminating manual operation and saving energy and reducing consumption.

[0059] In other embodiments, Figure 4 As shown, the automatic PIN folding machine also includes a control unit 8 and an alarm 9; the control unit 8 is connected to the driving mechanism 35, the feeding driving element 15, the folding and shearing sensing switch 6 and the feeding sensing switch 7 by wire or wireless; the alarm 9 is connected to the control unit 8 by wire or wireless to alarm the abnormal working conditions of the automatic PIN folding machine.

[0060] The beneficial effects of adopting the above technical solution are: the control unit can receive the switch signals from the folding and shearing sensing switch and the feeding sensing switch in real time, and issue start or stop instructions to the driving mechanism or the feeding driving element according to the received switch signals; when the automatic PIN folding machine encounters abnormal situations such as feeding jamming, bending and shearing failure, etc. during the feeding or PIN folding process, it receives the alarm signal of the control unit and issues an alarm, calling for manual processing in time.

[0061] In other embodiments, the present invention further discloses an automatic PIN folding method, comprising the following steps:

[0062] S1, start the power supply, add PIN 01 to the feeding device 1, the feeding device 1 arranges the PIN 01 in the same direction, and transports them to the row PIN track 32 in sequence through the conveying track 2;

[0063] S2, when the number of PINs 01 in the row PIN track 32 increases to a predetermined folding and shearing quantity standard, the driving mechanism 35 of the folding and shearing device is started to bend the PIN pins 012 and shear off the excessively long portion of the PIN pins 012;

[0064] S3, when the number of PIN 01 in the row PIN track 32 is reduced to the predetermined loading quantity standard, the driving mechanism 35 of the folding and shearing device is turned off to wait for loading;

[0065] S4. Repeat steps S1-S3 until the predetermined PIN folding task is completed and the power is turned off.

[0066] The beneficial effects of adopting the above technical solution are: automatically arranging the PINs into a state with consistent direction is an important prerequisite for the PIN folding machine to maintain a high success rate in folding the PINs; in the folding and shearing process, bending and shearing are performed simultaneously, which helps to shorten the processing time of a single PIN and greatly improve the production efficiency of the PIN; in addition, standardized PIN folding methods help to improve the quality stability of PIN bending and shearing.

[0067] The above embodiments are only for illustrating the technical concept and features of the present invention, and their purpose is to enable ordinary technicians in the field to understand the content of the present invention and implement it. They cannot be used to limit the protection scope of the present invention. All equivalent changes or modifications made according to the spirit of the present invention should be included in the protection scope of the present invention.

Claims

1. An automatic PIN folding machine, characterized in that: include: Feeding device, conveying track and folding and shearing device, The feeding device, including a feeding port and a discharging port, is a device for arranging disordered PINs into PINs with consistent directions and outputting them to the conveying track. The PINs include a mother PIN body and a PIN needle connected to the mother PIN body; The conveying track includes a feed end and a discharge end, the feed end is connected to the discharge port, and the discharge end is connected to the folding and shearing device; the conveying track is a strip track for conveying PINs; The folding and shearing device is used to bend the PIN pin to a predetermined shape and shear off the excess material, and comprises a folding and shearing frame, a row PIN track, a bending mechanism, a shearing mechanism and a driving mechanism; the folding and shearing frame is used to carry the row PIN track, the bending mechanism, the shearing mechanism and the driving mechanism; the row PIN track comprises a material receiving port and a material discharging port, and is fixed on the folding and shearing frame in the length direction of the material receiving port and the material discharging port from top to bottom; the bending mechanism is centrally symmetrically arranged relative to the length direction of the row PIN track; the shearing mechanism is arranged on the left or right side of the row PIN track, and is arranged in cooperation with the bending mechanism to shear off the excess material after the PIN pin is bent to a predetermined shape; the driving mechanism is respectively connected to the bending mechanism and the shearing mechanism; The feeding device further comprises a feeding frame, a feeding tray and a feeding drive element; the feeding tray is a hollow tray with a spiral conveying track inside, and the feeding tray is fixed above the feeding frame; the feeding drive element is connected to the feeding tray; The feeding drive element is an eccentric motor, and the eccentric motor provides a vibration driving force for the feeding tray; The bending mechanism includes a bending die, a first resetting element and a first transmission assembly; the bending die includes a left bending die and a right bending die, the left bending die and the right bending die are symmetrically arranged along the length direction of the PIN track, and are respectively connected to the driving mechanism through the first transmission assembly; one end of the first resetting element is connected to the bending die, and the other end is connected to the folding shear frame; The shearing mechanism includes a shearing tool, a second resetting element and a second transmission assembly; the shearing tool is matched with the left bending mold or the right bending mold, and is used to shear the residual material after the PIN pin is bent to a predetermined shape, and is connected to the driving mechanism through the second transmission assembly; one end of the second resetting element is connected to the shearing tool, and the other end is connected to the shearing frame.

2. The automatic PIN folding machine according to claim 1, characterized in that , and also includes a PIN collecting guide groove, which is arranged at the discharge port of the PIN track to collect the PINs that have been bent and sheared and guide the PINs to a predetermined position.

3. The automatic PIN folding machine according to claim 1, characterized in that , also includes a waste recovery device, which includes a waste recovery chamber arranged on the periphery of the shearing mechanism and a surrounding cover body erected above the waste recovery chamber, for recovering the residual material after PIN needle shearing and preventing the residual material from splashing.

4. The automatic PIN folding machine according to claim 1, characterized in that The PIN track is provided with a folding and shearing start position and a loading start position. The automatic PIN folding machine also includes a folding and shearing sensing switch and a loading sensing switch. The folding and shearing sensing switch is arranged at the folding and shearing start position to start or stop bending the PIN pin to a predetermined shape and shearing the excess material. The loading sensing switch is arranged at the loading start position to start or stop loading.

5. The automatic PIN folding machine according to any one of claims 1 to 4, characterized in that , also includes a control unit and an alarm, The control unit is connected to the driving mechanism, the feeding driving element, the folding and shearing induction switch and the feeding induction switch by wire or wirelessly; The alarm is connected to the control unit by wire or wirelessly, and is used to give an alarm for abnormal operation of the automatic PIN folding machine.

6. An automatic PIN folding method, characterized in that: The automatic PIN folding machine according to any one of claims 1 to 5 is used, and the following steps are performed: S1, start the power supply, add PINs to the feeding device, the feeding device arranges the PINs in the same direction, and transports them to the row PIN track in sequence through the conveying track; S2. When the number of PINs in the row of PIN tracks increases to a predetermined folding and shearing quantity standard, the driving mechanism of the folding and shearing device is started to bend the PINs and shear off the excessively long parts of the PINs; S3, when the number of PINs in the row of PIN tracks is reduced to a predetermined loading quantity standard, the driving mechanism of the folding and shearing device is turned off to wait for loading; S4. Repeat steps S1-S3 until the predetermined PIN folding task is completed and the power is turned off.

Images