CN111918540B - Pin cutting and folding method of braid resistor - Google Patents
Pin cutting and folding method of braid resistor Download PDFInfo
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- CN111918540B CN111918540B CN202010702426.7A CN202010702426A CN111918540B CN 111918540 B CN111918540 B CN 111918540B CN 202010702426 A CN202010702426 A CN 202010702426A CN 111918540 B CN111918540 B CN 111918540B
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- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K13/00—Apparatus or processes specially adapted for manufacturing or adjusting assemblages of electric components
- H05K13/02—Feeding of components
- H05K13/023—Feeding of components with bending or straightening of the terminal leads
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21F—WORKING OR PROCESSING OF METAL WIRE
- B21F1/00—Bending wire other than coiling; Straightening wire
- B21F1/004—Bending wire other than coiling; Straightening wire by means of press-type tooling
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21F—WORKING OR PROCESSING OF METAL WIRE
- B21F11/00—Cutting wire
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Abstract
The invention discloses a pin shearing and folding method of a braid resistor, wherein the braid resistor is intermittently transmitted from top to bottom, connecting bands on two sides of the braid resistor are respectively inserted into guide chutes of a pair of guide blocks, and the connecting bands firstly pass through a vertical section of the guide chutes, then pass through an inclined section of the guide chutes and finally are output from a discharge hole of a back plate; and the plug-in resistors in the braid resistors are moved downwards to the lower cutter one by one, the plug-in resistors on the lower cutter are cut and folded one by one, the braid resistors are temporarily conveyed in the process of cutting and folding the plug-in resistors, and the braid resistors are continuously conveyed after the plug-in resistors are cut and folded. The pin shearing and folding method of the braid resistor can process the plug-in resistors on the braid resistor one by one, shear and bend the resistor pins at two ends of the plug-in resistors, and has the advantages of stable shearing, good bending and forming effect and high efficiency.
Description
Technical Field
The invention relates to a pin shearing and folding method of a braid resistor.
Background
Braid resistors are commonly used resistor materials and typically include: the plug-in unit comprises a plurality of plug-in unit resistors which are sequentially arranged, and a pair of connecting bands which are respectively arranged at two sides of the plug-in unit resistors; the plug-in resistor includes: the resistor comprises a resistor body and resistor pins which are respectively arranged at two ends of the resistor body; and the resistor pins at two ends of each plug-in resistor are respectively connected with the pair of connecting bands.
In the process of inserting the PCB board, the resistor pins at two ends of the resistor of the PCB board need to be cut and bent. At present, the resistor pins are generally sheared and bent by manual operation, so that the quality is unstable, potential safety hazards exist, and the operation is complex and the efficiency is low.
Disclosure of Invention
The invention aims to provide a pin shearing and folding method of a braid resistor, which can be used for processing plug-in resistors on the braid resistor one by one, shearing and bending resistor pins at two ends of the plug-in resistors, and has the advantages of stable shearing, good bending forming effect and high efficiency.
In order to achieve the purpose, the technical scheme of the invention is to design a pin shearing and folding method of a braid resistor, wherein a pin shearing and folding device is adopted to shear and fold the braid resistor;
the braid resistance includes: the plug-in unit comprises a plurality of plug-in unit resistors which are sequentially arranged, and a pair of connecting bands which are respectively arranged at two sides of the plug-in unit resistors; the plug-in resistor includes: the resistor comprises a resistor body and resistor pins which are respectively arranged at two ends of the resistor body; the resistor pins at two ends of each plug-in resistor are respectively connected with the pair of connecting bands;
the pin shearing and folding device comprises a back plate, a lower cutter, an upper cutter, a pair of material guide blocks, a pair of supporting springs, an eccentric wheel and a motor;
the back plate is vertically arranged, and a discharge hole for the braid resistor to pass through is formed in the bottom of the back plate;
the lower cutter is arranged on the front side of the back plate and corresponds to the discharge hole; the lower cutter comprises a base and a pair of lower cutters arranged left and right; the base is fixedly arranged at the bottom of the front side surface of the back plate; the pair of lower cutters are vertically arranged and are vertical to the back plate, and the rear ends of the lower cutters respectively extend downwards and are integrally connected with the base; the front end top of the pair of lower cutters is respectively provided with: a placing groove for placing a resistor pin frame; the placing grooves of the pair of lower cutters are arranged along the left-right direction and are symmetrically arranged; the outer side port of the placing groove is a knife edge of the lower cutter of the placing groove;
the upper cutter is arranged on the front side of the back plate and is positioned above the lower cutter; the upper cutter comprises: the T-shaped top frame, and a bending knife and a pair of upper cutters which extend downwards from the bottom end of the T-shaped top frame; a sliding block extends from the back side of the T-shaped top frame, a vertical sliding groove is formed in the front side face of the back plate, and the sliding block is assembled with the sliding groove in a sliding mode; the pair of upper cutters corresponds to the pair of lower cutters one by one, the upper cutters are positioned on the outer sides of the corresponding lower cutters, and the bottom ends of the upper cutters are provided with cutter edges; the knife edge of the upper cutter is matched with the knife edge of the corresponding lower cutter and is used for cutting off the resistor pins extending out of the knife edge of the lower cutter; the bending knife is positioned between the pair of upper knives; a pair of bending tool bits extend downwards from the bottom end of the bending tool and are arranged on the left and right sides; the bottom end of the bending knife is arranged between the bending knife heads: the avoiding groove can avoid the resistor body; the pair of bending cutter heads corresponds to the pair of lower cutters one by one; the bending cutter head is positioned on the inner side corresponding to the lower cutter, the outer side surface of the bending cutter head is used as an inner forming surface, the inner side surface of the lower cutter is used as an outer forming surface, the inner forming surface and the outer forming surface are matched with each other to form a shaping gap, and the shaping gap is used for bending the resistor pins extending to the outer side of the bending cutter head; the width of the shaping gap (i.e. the horizontal spacing between the inner and outer shaping surfaces) is equal to the diameter of the resistor pin;
the top parts of the inner side surfaces of the pair of lower cutters are respectively provided with a chamfer, and the chamfers at the top parts of the inner side surfaces of the pair of lower cutters are symmetrically arranged; the bottom edges of the pair of upper cutters are lower than the bottom ends of the pair of bending cutter heads;
the pair of material guide blocks are arranged on the front side of the back plate, are respectively arranged on the left side and the right side of the discharge port, are symmetrically arranged below the cutters and are fixedly connected with the back plate; the pair of material guide blocks are vertically arranged, the bottom surfaces of the pair of material guide blocks are positioned below the discharge hole, the top surfaces of the pair of material guide blocks are positioned below the upper cutter, and the front side surfaces of the pair of material guide blocks protrude out of the upper cutter and the lower cutter; the opposite surfaces of the pair of material guiding blocks are respectively provided with: a material guide chute for guiding the conveying of the connecting belt; the guide chutes on the pair of guide blocks are symmetrically arranged, the guide chutes on the pair of guide blocks correspond to the connecting belts on two sides of the braid resistor one by one, the guide chutes can be used for the corresponding connecting belts to pass through, and the guide chutes are in sliding fit with the corresponding connecting belts; the guide chute comprises a vertical section and an inclined section, the vertical section of the guide chute is positioned on the front sides of the upper cutter and the lower cutter, the top end of the vertical section of the guide chute extends to the top surface of the guide block, the bottom end of the vertical section of the guide chute is positioned above the lower cutter, the top end of the inclined section of the guide chute is communicated with the bottom end of the vertical section, and the bottom end of the inclined section of the guide chute is communicated with the discharge hole;
the upper parts of the guide blocks are respectively provided with a lifting groove which is positioned between the vertical section of the guide groove and the back plate; the lifting grooves of the material guide blocks correspond to the two ends of the top of the T-shaped top frame one by one, and the two ends of the top of the T-shaped top frame are respectively inserted into the lifting grooves of the material guide blocks; the pair of supporting springs are respectively vertically arranged in the lifting grooves of the pair of material guide blocks, the pair of supporting springs correspond to two ends of the top of the T-shaped top frame one by one, and two ends of the top of the T-shaped top frame are respectively supported by the corresponding supporting springs;
the eccentric wheel is arranged on the front side of the back plate, is positioned above the upper cutter and is abutted against the top surface of the T-shaped top frame; the motor is arranged at the rear side of the back plate, and a rotating shaft of the motor penetrates through the back plate and is connected with the eccentric wheel;
the braid resistance is intermittently transmitted from top to bottom, connecting belts on two sides of the braid resistance are respectively inserted into the guide chutes of the pair of guide blocks, and the connecting belts firstly pass through the vertical sections of the guide chutes, then pass through the inclined sections of the guide chutes and finally are output from a discharge port of the back plate; the plug-in resistors in the braid resistors are moved downwards to a lower cutter one by one, the plug-in resistors on the lower cutter are cut and folded one by one, the braid resistors are temporarily conveyed in the process of cutting and folding the plug-in resistors, and the braid resistors are continuously conveyed after the plug-in resistors are cut and folded;
when the plug-in resistor moves downwards onto the lower cutter, the resistor body of the plug-in resistor is arranged right below the position avoiding groove at the bottom end of the bending cutter, resistor pins at two ends of the resistor body are respectively erected in the placing grooves at the tops of the front ends of the pair of lower cutters, and the resistor pins at two ends of the resistor body respectively extend out of the cutter edges of the pair of lower cutters;
the method for shearing and folding the plug-in resistor on the lower cutter comprises the following specific steps:
1) the motor drives the eccentric wheel to rotate from the upper dead point; the eccentric wheel drives the upper cutter to move downwards, the cutter edges of the pair of upper cutters and the pair of lower cutters are respectively correspondingly staggered, the resistance pins extending out of the cutter edges of the pair of lower cutters are cut off, and the resistance pins are remained at two ends of the resistance body (the resistance body is separated from the connecting belts at two sides of the braid resistance);
3) the eccentric wheel continuously drives the upper cutter to move downwards, and the pair of bending cutter heads downwards press the resistor pins remained at the two ends of the resistor body; the resistor pins extending to the outer side of the bending tool bit are gradually bent upwards under the guidance of the corresponding chamfer;
4) the eccentric wheel continuously drives the upper cutter to move downwards, and the pair of bending cutter heads continuously press the resistor pins downwards; the inner forming surface and the outer forming surface which correspond to each other form a shaping gap; the resistor pins extending to the outer side of the bending tool bit are clamped in the corresponding shaping gaps; the residual resistor pins at the two ends of the resistor body are shaped into an L shape;
5) the eccentric wheel continues to drive the upper cutter to move downwards until the eccentric wheel rotates to a lower stop point, the pair of bending cutter heads press the finished plug-in resistor below the pair of lower cutters, the finished plug-in resistor is separated from the pair of lower cutters, and the plug-in resistor is discharged;
6) the motor drives the eccentric wheel to continue rotating, and the eccentric wheel is rotated from the lower dead point to reset to the upper dead point; in the process of the rotation and the reset of the eccentric wheel, the supporting spring drives the upper cutter to move upwards for resetting;
7) repeating the steps 1) to 6).
Preferably, the eccentric wheel is positioned right above the lower cutter.
Preferably, the pair of upper cutters is provided in bilateral symmetry.
Preferably, the pair of bending blades are symmetrically arranged.
Preferably, the pair of lower cutters is arranged in bilateral symmetry.
The invention has the advantages and beneficial effects that: the pin shearing and folding method for the braid resistor can process the plug-in resistors on the braid resistor one by one, shear and bend the resistor pins at two ends of the plug-in resistors, and is stable in shearing, good in bending forming effect and high in efficiency.
Detailed Description
The following further describes embodiments of the present invention with reference to examples. The following examples are only for illustrating the technical solutions of the present invention more clearly, and the protection scope of the present invention is not limited thereby.
The technical scheme of the specific implementation of the invention is as follows:
the invention provides a pin shearing and folding method of a braid resistor, which adopts a pin shearing and folding device to shear and fold the braid resistor;
the braid resistance includes: the plug-in unit comprises a plurality of plug-in unit resistors which are sequentially arranged, and a pair of connecting bands which are respectively arranged at two sides of the plug-in unit resistors; the plug-in resistor includes: the resistor comprises a resistor body and resistor pins which are respectively arranged at two ends of the resistor body; the resistor pins at two ends of each plug-in resistor are respectively connected with the pair of connecting bands;
the pin shearing and folding device comprises a back plate, a lower cutter, an upper cutter, a pair of material guide blocks, a pair of supporting springs, an eccentric wheel and a motor;
the back plate is vertically arranged, and a discharge hole for the braid resistor to pass through is formed in the bottom of the back plate;
the lower cutter is arranged on the front side of the back plate and corresponds to the discharge hole; the lower cutter comprises a base and a pair of lower cutters which are arranged in bilateral symmetry; the base is fixedly arranged at the bottom of the front side surface of the back plate; the pair of lower cutters are vertically arranged and are vertical to the back plate, and the rear ends of the lower cutters respectively extend downwards and are integrally connected with the base; the front end top of the pair of lower cutters is respectively provided with: a placing groove for placing a resistor pin frame; the placing grooves of the pair of lower cutters are arranged along the left-right direction and are symmetrically arranged; the outer side port of the placing groove is a knife edge of the lower cutter of the placing groove;
the upper cutter is arranged on the front side of the back plate and is positioned above the lower cutter; the upper cutter comprises: the T-shaped top frame, and a bending knife and a pair of upper cutters which extend downwards from the bottom end of the T-shaped top frame; a sliding block extends from the back side of the T-shaped top frame, a vertical sliding groove is formed in the front side face of the back plate, and the sliding block is assembled with the sliding groove in a sliding mode; the pair of upper cutters are arranged in bilateral symmetry; the pair of upper cutters corresponds to the pair of lower cutters one by one, the upper cutters are positioned on the outer sides of the corresponding lower cutters, and the bottom ends of the upper cutters are provided with cutter edges; the knife edge of the upper cutter is matched with the knife edge of the corresponding lower cutter and is used for cutting off the resistor pins extending out of the knife edge of the lower cutter; the bending knife is positioned between the pair of upper knives; a pair of bending tool bits extend downwards from the bottom end of the bending tool and are arranged symmetrically left and right; the bottom end of the bending knife is arranged between the bending knife heads: the avoiding groove can avoid the resistor body; the pair of bending cutter heads corresponds to the pair of lower cutters one by one; the bending cutter head is positioned on the inner side corresponding to the lower cutter, the outer side surface of the bending cutter head is used as an inner forming surface, the inner side surface of the lower cutter is used as an outer forming surface, the inner forming surface and the outer forming surface are matched with each other to form a shaping gap, and the shaping gap is used for bending the resistor pins extending to the outer side of the bending cutter head; the width of the shaping gap (i.e. the horizontal spacing between the inner and outer shaping surfaces) is equal to the diameter of the resistor pin;
the top parts of the inner side surfaces of the pair of lower cutters are respectively provided with a chamfer, and the chamfers at the top parts of the inner side surfaces of the pair of lower cutters are symmetrically arranged; the bottom edges of the pair of upper cutters are lower than the bottom ends of the pair of bending cutter heads;
the pair of material guide blocks are arranged on the front side of the back plate, are respectively arranged on the left side and the right side of the discharge port, are symmetrically arranged below the cutters and are fixedly connected with the back plate; the pair of material guide blocks are vertically arranged, the bottom surfaces of the pair of material guide blocks are positioned below the discharge hole, the top surfaces of the pair of material guide blocks are positioned below the upper cutter, and the front side surfaces of the pair of material guide blocks protrude out of the upper cutter and the lower cutter; the opposite surfaces of the pair of material guiding blocks are respectively provided with: a material guide chute for guiding the conveying of the connecting belt; the guide chutes on the pair of guide blocks are symmetrically arranged, the guide chutes on the pair of guide blocks correspond to the connecting belts on two sides of the braid resistor one by one, the guide chutes can be used for the corresponding connecting belts to pass through, and the guide chutes are in sliding fit with the corresponding connecting belts; the guide chute comprises a vertical section and an inclined section, the vertical section of the guide chute is positioned on the front sides of the upper cutter and the lower cutter, the top end of the vertical section of the guide chute extends to the top surface of the guide block, the bottom end of the vertical section of the guide chute is positioned above the lower cutter, the top end of the inclined section of the guide chute is communicated with the bottom end of the vertical section, and the bottom end of the inclined section of the guide chute is communicated with the discharge hole;
the upper parts of the guide blocks are respectively provided with a lifting groove which is positioned between the vertical section of the guide groove and the back plate; the lifting grooves of the material guide blocks correspond to the two ends of the top of the T-shaped top frame one by one, and the two ends of the top of the T-shaped top frame are respectively inserted into the lifting grooves of the material guide blocks; the pair of supporting springs are respectively vertically arranged in the lifting grooves of the pair of material guide blocks, the pair of supporting springs correspond to two ends of the top of the T-shaped top frame one by one, and two ends of the top of the T-shaped top frame are respectively supported by the corresponding supporting springs;
the eccentric wheel is arranged on the front side of the back plate, is positioned right above the lower cutter and is abutted against the top surface of the T-shaped top frame; the motor is arranged at the rear side of the back plate, and a rotating shaft of the motor penetrates through the back plate and is connected with the eccentric wheel;
the braid resistor is intermittently transmitted from top to bottom, connecting bands on two sides of the braid resistor are respectively inserted into the guide chutes of the pair of guide blocks, the connecting bands firstly pass through a vertical section of each guide chute, then pass through an inclined section of each guide chute, and finally are output from a discharge port of the back plate; the plug-in resistors in the braid resistors are gradually moved downwards to a lower cutter, the plug-in resistors on the lower cutter are gradually cut and folded, the braid resistors are temporarily conveyed in the process of cutting and folding the plug-in resistors, and the braid resistors are continuously conveyed after the plug-in resistors are cut and folded;
when the plug-in resistor moves downwards onto the lower cutter, the resistor body of the plug-in resistor is arranged right below the position avoiding groove at the bottom end of the bending cutter, resistor pins at two ends of the resistor body are respectively erected in the placing grooves at the tops of the front ends of the pair of lower cutters, and the resistor pins at two ends of the resistor body respectively extend out of the cutter edges of the pair of lower cutters;
the method for shearing and folding the plug-in resistance on the lower cutter comprises the following specific steps:
1) the motor drives the eccentric wheel to rotate from the upper dead point; the eccentric wheel drives the upper cutter to move downwards, the cutter edges of the pair of upper cutters and the pair of lower cutters are respectively correspondingly staggered, the resistance pins extending out of the cutter edges of the pair of lower cutters are cut off, and the resistance pins are remained at two ends of the resistance body (the resistance body is separated from the connecting belts at two sides of the braid resistance);
3) the eccentric wheel continuously drives the upper cutter to move downwards, and the pair of bending cutter heads downwards press the resistor pins remained at the two ends of the resistor body; the resistor pins extending to the outer side of the bending tool bit are gradually bent upwards under the guidance of the corresponding chamfers;
4) the eccentric wheel continuously drives the upper cutter to move downwards, and the pair of bending cutter heads continuously press the resistor pins downwards; the inner forming surface and the outer forming surface which correspond to each other form a shaping gap; the resistor pins extending to the outer side of the bending tool bit are clamped in the corresponding shaping gaps; the residual resistor pins at the two ends of the resistor body are shaped into an L shape;
5) the eccentric wheel continues to drive the upper cutter to move downwards until the eccentric wheel rotates to a lower stop point, the pair of bending cutter heads press the finished plug-in resistor below the pair of lower cutters, the finished plug-in resistor is separated from the pair of lower cutters, and the plug-in resistor is discharged;
6) the motor drives the eccentric wheel to continue rotating, and the eccentric wheel is reset to an upper dead point from a lower dead point; in the process of the rotation and the reset of the eccentric wheel, the supporting spring drives the upper cutter to move upwards for resetting;
7) repeating the steps 1) to 6).
The pin shearing and folding method of the braid resistor can process the plug-in resistors on the braid resistor one by one, shear and bend the resistor pins at two ends of the plug-in resistors, and has the advantages of stable shearing, good bending and forming effects and high efficiency.
The above description is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, it is possible to make various improvements and modifications without departing from the technical principle of the present invention, and these improvements and modifications should also be considered as the protection scope of the present invention.
Claims (5)
1. The pin shearing and folding method of the braid resistor is characterized in that a pin shearing and folding device is adopted to shear and fold the braid resistor;
the braid resistance includes: the plug-in unit comprises a plurality of plug-in unit resistors which are sequentially arranged, and a pair of connecting bands which are respectively arranged at two sides of the plug-in unit resistors; the plug-in resistor includes: the resistor comprises a resistor body and resistor pins which are respectively arranged at two ends of the resistor body; the resistor pins at two ends of each plug-in resistor are respectively connected with the pair of connecting belts;
the pin shearing and folding device comprises a back plate, a lower cutter, an upper cutter, a pair of material guide blocks, a pair of supporting springs, an eccentric wheel and a motor;
the back plate is vertically arranged, and a discharge hole for the braid resistor to pass through is formed in the bottom of the back plate;
the lower cutter is arranged on the front side of the back plate and corresponds to the discharge hole; the lower cutter comprises a base and a pair of lower cutters arranged on the left and right; the base is fixedly arranged at the bottom of the front side surface of the back plate; the pair of lower cutters are vertically arranged and are vertical to the back plate, and the rear ends of the lower cutters respectively extend downwards and are integrally connected with the base; the front end top of the pair of lower cutters is respectively provided with: a placing groove for placing a resistor pin frame; the placing grooves of the pair of lower cutters are arranged along the left-right direction and are symmetrically arranged; the outer side port of the placing groove is a knife edge of the lower cutter of the placing groove;
the upper cutter is arranged on the front side of the back plate and is positioned above the lower cutter; the upper cutter comprises: the T-shaped top frame, and a bending knife and a pair of upper cutters which extend downwards from the bottom end of the T-shaped top frame; a sliding block extends from the back side of the T-shaped top frame, a vertical sliding groove is formed in the front side face of the back plate, and the sliding block is assembled with the sliding groove in a sliding mode; the pair of upper cutters corresponds to the pair of lower cutters one by one, the upper cutters are positioned on the outer sides of the corresponding lower cutters, and the bottom ends of the upper cutters are provided with cutter edges; the knife edge of the upper cutter is matched with the knife edge of the corresponding lower cutter and is used for cutting off the resistor pins extending out of the knife edge of the lower cutter; the bending knife is positioned between the pair of upper knives; a pair of bending cutter heads extend downwards from the bottom end of the bending cutter, and the bending cutter heads are arranged on the left and right sides; the bottom end of the bending knife is arranged between the bending knife heads: the avoiding groove can avoid the resistor body; the pair of bending cutter heads corresponds to the pair of lower cutters one by one; the bending cutter head is positioned on the inner side corresponding to the lower cutter, the outer side surface of the bending cutter head is used as an inner forming surface, the inner side surface of the lower cutter is used as an outer forming surface, the inner forming surface and the outer forming surface are matched with each other to form a shaping gap, and the shaping gap is used for bending the resistor pins extending to the outer side of the bending cutter head; the width of the shaping gap is equal to the diameter of the resistor pin;
the top parts of the inner side surfaces of the pair of lower cutters are respectively provided with a chamfer, and the chamfers at the top parts of the inner side surfaces of the pair of lower cutters are symmetrically arranged; the bottom edges of the pair of upper cutters are lower than the bottom ends of the pair of bending cutter heads;
the pair of material guide blocks are arranged on the front side of the back plate, are respectively arranged on the left side and the right side of the discharge port, are symmetrically arranged below the cutters and are fixedly connected with the back plate; the pair of material guide blocks are vertically arranged, the bottom surfaces of the pair of material guide blocks are positioned below the discharge hole, the top surfaces of the pair of material guide blocks are positioned below the upper cutter, and the front side surfaces of the pair of material guide blocks protrude out of the upper cutter and the lower cutter; the opposite surfaces of the pair of material guiding blocks are respectively provided with: a material guide chute for guiding the conveying of the connecting belt; the guide chutes on the pair of guide blocks are symmetrically arranged, the guide chutes on the pair of guide blocks correspond to the connecting belts on two sides of the braid resistor one by one, the guide chutes can be used for the corresponding connecting belts to pass through, and the guide chutes are in sliding fit with the corresponding connecting belts; the guide chute comprises a vertical section and an inclined section, the vertical section of the guide chute is positioned on the front sides of the upper cutter and the lower cutter, the top end of the vertical section of the guide chute extends to the top surface of the guide block, the bottom end of the vertical section of the guide chute is positioned above the lower cutter, the top end of the inclined section of the guide chute is communicated with the bottom end of the vertical section, and the bottom end of the inclined section of the guide chute is communicated with the discharge hole;
the upper parts of the guide blocks are respectively provided with a lifting groove which is positioned between the vertical section of the guide groove and the back plate; the lifting grooves of the material guide blocks correspond to the two ends of the top of the T-shaped top frame one by one, and the two ends of the top of the T-shaped top frame are respectively inserted into the lifting grooves of the material guide blocks; the pair of supporting springs are respectively vertically arranged in the lifting grooves of the pair of material guide blocks, the pair of supporting springs correspond to two ends of the top of the T-shaped top frame one by one, and two ends of the top of the T-shaped top frame are respectively supported by the corresponding supporting springs;
the eccentric wheel is arranged on the front side of the back plate, is positioned above the upper cutter and is abutted against the top surface of the T-shaped top frame; the motor is arranged at the rear side of the back plate, and a rotating shaft of the motor penetrates through the back plate and is connected with the eccentric wheel;
the braid resistance is intermittently transmitted from top to bottom, connecting belts on two sides of the braid resistance are respectively inserted into the guide chutes of the pair of guide blocks, and the connecting belts firstly pass through the vertical sections of the guide chutes, then pass through the inclined sections of the guide chutes and finally are output from a discharge port of the back plate; the plug-in resistors in the braid resistors are moved downwards to a lower cutter one by one, the plug-in resistors on the lower cutter are cut and folded one by one, the braid resistors are temporarily conveyed in the process of cutting and folding the plug-in resistors, and the braid resistors are continuously conveyed after the plug-in resistors are cut and folded;
when the plug-in resistor moves downwards onto the lower cutter, the resistor body of the plug-in resistor is arranged right below the position avoiding groove at the bottom end of the bending cutter, resistor pins at two ends of the resistor body are respectively erected in the placing grooves at the tops of the front ends of the pair of lower cutters, and the resistor pins at two ends of the resistor body respectively extend out of the cutter edges of the pair of lower cutters;
the method for shearing and folding the plug-in resistor on the lower cutter comprises the following specific steps:
1) the motor drives the eccentric wheel to rotate from the upper dead point; the eccentric wheel drives the upper cutter to move downwards, the cutter edges of the pair of upper cutters and the pair of lower cutters are correspondingly staggered respectively, the resistor pins extending out of the cutter edges of the pair of lower cutters are cut off, and the resistor pins are remained at two ends of the resistor body;
3) the eccentric wheel continuously drives the upper cutter to move downwards, and the pair of bending cutter heads downwards press the resistor pins remained at the two ends of the resistor body; the resistor pins extending to the outer side of the bending tool bit are gradually bent upwards under the guidance of the corresponding chamfer;
4) the eccentric wheel continuously drives the upper cutter to move downwards, and the pair of bending cutter heads continuously press the resistor pins downwards; the inner forming surface and the outer forming surface which correspond to each other form a shaping gap; the resistor pins extending to the outer side of the bending tool bit are clamped in the corresponding shaping gaps; the residual resistor pins at the two ends of the resistor body are shaped into an L shape;
5) the eccentric wheel continues to drive the upper cutter to move downwards until the eccentric wheel rotates to a lower stop point, the pair of bending cutter heads press the finished plug-in resistor below the pair of lower cutters, the finished plug-in resistor is separated from the pair of lower cutters, and the plug-in resistor is discharged;
6) the motor drives the eccentric wheel to continue rotating, and the eccentric wheel is rotated from the lower dead point to reset to the upper dead point; in the process of the rotation and the reset of the eccentric wheel, the supporting spring drives the upper cutter to move upwards for resetting;
7) repeating the steps 1) to 6).
2. The pin shearing method of the braid resistor as recited in claim 1, wherein the eccentric wheel is positioned right above the lower cutter.
3. The method of claim 2, wherein the pair of upper blades are arranged in a left-right symmetrical manner.
4. The method of claim 3, wherein the pair of bending blades are symmetrically disposed.
5. The method of claim 4, wherein the pair of lower cutters are symmetrically disposed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010702426.7A CN111918540B (en) | 2020-07-21 | 2020-07-21 | Pin cutting and folding method of braid resistor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010702426.7A CN111918540B (en) | 2020-07-21 | 2020-07-21 | Pin cutting and folding method of braid resistor |
Publications (2)
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