CN201989441U

CN201989441U - Machine head of plastic pin machine

Info

Publication number: CN201989441U
Application number: CN201120137575XU
Authority: CN
Inventors: 张文新; 陈文彬
Original assignee: Individual
Current assignee: Individual
Priority date: 2011-05-04
Filing date: 2011-05-04
Publication date: 2011-09-28
Anticipated expiration: 2021-05-04

Abstract

The utility model discloses a machine head of a plastic pin machine, which comprises a machine head base board, a machine cover board, a small cover board, a matched thimble mechanism and a clutch pulling pole located on the machine head cover board. The key technology of the machine head of the plastic pin machine is that the machine head of the plastic pin machine further comprises a pin-pulling pole which is arranged on the machine head base board and a ratchet mechanism which is arranged at the front end of the pin-pulling pole. The machine head base board is fixed with a pin-pulling spring, and the other end of the pin-pulling spring is connected with the pin-pulling pole. The ratchet mechanism comprises a hook pole hinged with the pin-pulling pole, a non-return pole matched with the hook pole in overlap joint mode, a hook pole spring positioned between the hook pole and the machine head base board, a matched ratchet wheel arranged between the hook pole and the non-return pole and a pin-pulling wheel gear arranged in coaxial with the ratchet wheel. The machine head of the plastic pin machine is simple and compact in structure, utilizes the springback of the pin-pulling spring to drive the ratchet wheel to rotate, and thereby being more flexible and stable in strength. Thus, the machine is more reliable in continuous working.

Description

The plastic pin machine head

Technical field

The utility model relates to a kind of binding machine equipment, especially a kind of improved plastic pin machine head.

Background technology

Participating in Granted publication number is the patent of CN 201700458U, it discloses a kind of thimble system of following closely the mark machine, it is the head of plastic pin machine, it comprises head cover plate, head base plate, minor flaps and supporting ejector pin mechanism and ratchet shank mechanism, the power that plastic pin advances in the head of this structure is to provide by the frictional force that the jump ring of being located on the ratchet produces, and then stirs plastic pin and advance, its structure more complicated, reliability is low in the course of work, loses efficacy easily.

The utility model content

The technical problems to be solved in the utility model provides a kind of relatively simple for structure, plastic pin machine head that functional reliability is higher.

For solving the problems of the technologies described above, technical solution adopted in the utility model is: a kind of plastic pin machine head, it comprises the ejector pin mechanism of head base plate, head cover plate, minor flaps, supporting setting and is positioned clutch dead man on the head cover plate that its key technology is: also comprise being installed on pulling out the pin stock and being located at the ratchet mechanism that pulls out pin stock front end on the head base plate; Be fixed with on the described head base plate and pull out needle spring, the described other end that pulls out needle spring connects and pulls out the pin stock, described ratchet mechanism comprises the shank hinged with pulling out the pin stock, overlap the check rod that cooperates with shank, be positioned the shank spring between shank and the head base plate, the supporting ratchet of being located at shank and check rod centre and with the pin gear that pulls out of coaxial ratchet setting.

The thimble that above-mentioned ejector pin mechanism comprises cylinder, is located at the contiguous block of cylinder rod front end and is located at the contiguous block front end.

Be positioned with non-return spring between above-mentioned check rod and the head base plate, described non-return spring is located at the end of check rod.

Preferably, the above-mentioned pin stock that pulls out is a notch cuttype, and the described needle spring that pulls out is hooked in the ladder platform place of pulling out the pin stock.

Adopt the beneficial effect that technique scheme produced to be: the strength of pulling out the needle spring resilience of the utility model utilization setting drives ratchet and rotates, thereby stirs plastic pin, and such strength is softer steadily, and is more reliable in the machine continuous operation; By the cooperation of pulling out pin stock and shank that is provided with, action of the present utility model is more flexible.

Description of drawings

Fig. 1 is a structural representation of the present utility model;

Fig. 2 is the action schematic diagram of the utility model ratchet portions;

Fig. 3 is that the utility model clutch part is divided the action schematic diagram;

Wherein, 1, cylinder fixing hole; 2, head base plate; 3, pull out the pin stock; 4, minor flaps steady pin; 5, head cover plate; 6, clutch dead man; 7, minor flaps; 8, pull out needle spring; 9, check rod; 10, shank spring; 11, pull out pin gear; 12, shank; 13, steady pin; 14, draw point; 15, non-return spring; 16, ratchet; 17, thimble; 18, contiguous block; 19, cylinder rod; 20, gear fixed axis; 21, check rod axis hole; 22, shank axle.

The specific embodiment

Below in conjunction with the drawings and specific embodiments the utility model is described in further detail.

Referring to accompanying drawing 1 and accompanying drawing 2, the utility model comprises the ejector pin mechanism of head base plate 2, head cover plate 5, minor flaps 7, supporting setting and is positioned clutch dead man 6 on the head cover plate 5, and it also comprises and is installed on pulling out pin stock 3 and being located at the ratchet mechanism that pulls out pin stock 3 front ends on the head base plate 2; Be fixed with on the described head base plate 2 and pull out needle spring 8, the described other end that pulls out needle spring 8 connects and pulls out pin stock 3, described ratchet mechanism comprises the shank 12 hinged with pulling out pin stock 3, overlap the check rod 9 that cooperates with shank 12, be positioned the shank spring 10 between shank 12 and the head base plate 2, the supporting ratchet 16 of being located at shank 12 and check rod 9 centres and with ratchet 16 coaxial settings pull out pin gear 11.The thimble 17 that described ejector pin mechanism comprises cylinder, is located at the contiguous block 18 of cylinder rod 19 front ends and is located at contiguous block 18 front ends.Be positioned with non-return spring 15 between check rod 9 and the head base plate 2, non-return spring 15 1 ends are connected the end of check rod 9, the other end and head base plate 2 relative fixed.Pull out pin stock 3 and be notch cuttype, pull out needle spring 8 one ends and head base plate 2 relative fixed, the other end is hooked on the ladder platform that pulls out pin stock 3.The place that overlap joint cooperates on check rod 9 and the shank 12 respectively is processed with a step, like this can better fit.Overall structure of the present utility model is smaller and more exquisite.

Pull out in the elongated slot that pin stock 3 is installed in head base plate 2, can only move back and forth along a direction, and two ends all have spacing, its actuating range is only slightly larger than the tooth pitch of ratchet 16, to guarantee only to allow ratchet 16 rotate the distance of a tooth at every turn, it and shank 12 are fixed together by shank axle 22, and can be that rotate at the center with shank axle 22, and the shank spring 10 on the shank 12 makes shank 12 be close to ratchet 16, unlikely getting loose during pulling ratchet 16.Non-return spring 15 on the check rod 9 also is to play same effect, makes it to be close to ratchet 16, limits the counter-rotating of ratchet 16.The effect of pulling out needle spring 8 is behind the good ratchet 16 of shank 12 hooks, pulls back when not having the pressure of contiguous block 18 and pulls out pin stock 3 and shank 12, and ratchet 16 is rotated, and this strength is exactly to stir the strength that plastic pin advances.The effect of minor flaps 7 is that these mechanism elements are wrapped in the inside, make it more fixing, simultaneously, with enter in the draw point 14 on the plane of thimble 17 on minor flaps 7 that cylinder rod 19 directly links to each other, be equivalent to head cover plate 5 and minor flaps 7 is wrapped thimble 17, make thimble 17 that a fixing direction of motion be arranged, can withstand on the tram of plastic pin reliably.Steady pin 13 passes the aperture on head cover plate 5 and the clutch dead man 6, clutch dead man 6 is fixed on the head cover plate 5, and can along steady pin 13 axially do moving of certain limit, enable to oppress check rod 9 and rotate, thereby make two hooks break away from ratchet 16, be in released state.An end that pulls out needle spring 8 withstands and pulls out the pin stock, and the other end is fixed on the head base plate 2, and it is between shank spring 10 and non-return spring 15.With respect to head base plate 2, to pull out pin stock 3 and rely on the strength of spring always to be parked in top place, when having only the thimble cylinder top to be at the end, contiguous block 18 bumps against when pulling out pin stock 3, pulls out pin stock 3 and just moves downward.Pull out needle spring 8 and shank spring 10 and all be fixed on the head base plate 2, its elastic force direction is opposite, pulls out the strength of the strength of needle spring 8 greater than shank spring 10, so when not having external force, pull out needle spring 8 and always be with shank in the above.

Referring to accompanying drawing 2, when cylinder rod 19 stretches out, drive contiguous block 18 and thimble 17 and move ahead, when running into the ledge that pulls out pin stock 3, pull out pin stock 3 and move ahead and drive shank 12 and move ahead, the distance of a tooth on the mobile ratchet 16, hook next tooth, when cylinder resetted, contiguous block 18 also resetted, leave and pull out pin stock 3, pull out pin stock 3 under the effect of pulling out needle spring 8, also move, drive the distance that ratchet 16 rotates a tooth to the direction that resets.The effect of check rod 9 is exactly to prevent to pull out pin stock 3 is descending ratchet 16 counter-rotatings when removing to hook next tooth.When ratchet 16 rotates the position of a tooth and it coaxial pull out the distance that pin gear 11 also rotates a tooth, pull out pin gear 11 and ratchet 16 is relatively-stationary, be an integral body, their can be the center rotation with gear fixed axis 20 together.

Referring to accompanying drawing 3, when the clutch dead man 6 on being fixed on head cover plate 5 is stirred, it from the A point to check rod 9 with power, check rod 9 can be that rotate at the center with check rod axle 21, ratchet 16 can be left in its tip, an end of check rod 9 can be to lower compression shank 12 simultaneously, owing to pull out pin stock 3 position relative fixed, the strength of pulling out needle spring 8 below it is also greater than the strength of shank spring 10, so, the position of shank axle 22 is motionless relatively, shank 12 can be that rotate at the center with shank axle 22, has also left ratchet 16, and pull out pin gear 11 and be in free state this moment, can rotate very easily, be convenient to the installation of plastic pin and unload.

Claims

1. plastic pin machine head, it comprises the ejector pin mechanism of head base plate (2), head cover plate (5), minor flaps (7), supporting setting and is positioned clutch dead man (6) on the head cover plate (5), it is characterized in that: also comprise being installed on pulling out pin stock (3) and being located at the ratchet mechanism that pulls out pin stock (3) front end on the head base plate (2); Be fixed with on the described head base plate (2) and pull out needle spring (8), the described other end that pulls out needle spring (8) connects and pulls out pin stock (3), described ratchet mechanism comprises the shank (12) hinged with pulling out pin stock (3), overlap the check rod (9) that cooperates with shank (12), be positioned the shank spring (10) between shank (12) and the head base plate (2), the supporting ratchet (16) of being located at shank (12) and check rod (9) centre and with the coaxial setting of ratchet (16) pull out pin gear (11).

2. plastic pin machine head according to claim 1 is characterized in that: described ejector pin mechanism comprises cylinder, be located at cylinder rod contiguous block (18) of (19) front end and the thimble (17) of being located at contiguous block (18) front end.

3. plastic pin machine head according to claim 2 is characterized in that: be positioned with non-return spring (15) between described check rod (9) and the head base plate (2), described non-return spring (15) is located at the end of check rod (9).

4. plastic pin machine head according to claim 1 is characterized in that: the described pin stock (3) that pulls out is a notch cuttype, and the described needle spring (8) that pulls out is hooked in the ladder platform place of pulling out pin stock (3).