CN214003249U - Variable-pitch feeding jig - Google Patents

Abstract

A variable-pitch feeding jig comprises a material receiving frame, a first material pushing device, a variable-pitch device and a second material pushing device, wherein the material receiving frame is used for receiving and temporarily storing materials from the outside; the first material pushing device is used for pushing the materials on the material receiving rack at intervals; the distance changing device comprises a material guiding piece, a second driving piece and a distance changing assembly connected to the second driving piece, wherein the material guiding piece is used for guiding materials pushed by the first pushing piece, so that the distance changing assembly receives and temporarily stores the materials led out from the material guiding piece at a first position, and the second driving piece is used for driving the distance changing assembly to change a preset distance from the first position to a second position; the second pushing device is used for pushing the materials in the variable-pitch assembly reaching the second position to material acupuncture points of the variable-pitch feeding jig, which are arranged corresponding to the second pushing piece, so as to complete variable-pitch feeding. Above-mentioned displacement pay-off tool not only can reduce the demand to the manpower, promotes the efficiency of material loading, and then promotes holistic production rhythm.

Description

Variable-pitch feeding jig

Technical Field

The application relates to the field of part assembly, especially relates to a roll-over pay-off tool.

Background

The circuit board needs to move on the track in the production process, the positions of only two side edges of the circuit board are lapped on the belt of the track, and when the circuit board is subjected to operations such as mounting, plug-in and the like, the circuit board needs to be pressed by large force, the circuit board can be deformed in the operation process, so that the production is abnormal and more, and the production is not facilitated.

SUMMERY OF THE UTILITY MODEL

In view of the above, it is desirable to provide a pitch-variable feeding jig capable of supporting a circuit board and preventing the circuit board from deforming.

A first aspect of the embodiments of the present application provides a variable-pitch feeding jig, which includes a material receiving rack, a first material pushing device, a variable-pitch device, and a second material pushing device, wherein the material receiving rack is used for receiving and temporarily storing materials from the outside; the first pushing device comprises a first driving piece and a first pushing piece connected to the first driving piece, and the first driving piece is used for driving the first pushing piece to push the materials received and temporarily stored by the material receiving frame at intervals; the distance changing device comprises a material guiding component, a second driving component and a distance changing component connected to the second driving component, wherein the material guiding component is used for guiding the material pushed by the first pushing component, so that the distance changing component receives and temporarily stores the material led out from the material guiding component at a first position, and the second driving component is used for driving the distance changing component to change a preset distance from the first position to a second position; the second pushing device comprises a third driving piece and a second pushing piece connected to the third driving piece, the third driving piece is used for driving the second pushing piece to push the materials in the variable-pitch assembly reaching the second position to material acupuncture points of the variable-pitch feeding jig, wherein the material acupuncture points are arranged corresponding to the second pushing piece, so that variable-pitch feeding is completed.

Further, in some embodiments of this application, the variable pitch pay-off tool still includes loading attachment, loading attachment includes the material loading unit, the material loading unit is equipped with as the holding cave of material acupuncture point for receive the material that the second blevile of push pushed to and carry out the material loading to the material that receives.

Further, in some embodiments of the present application, the material guiding member includes blocking pillars and a material channel alternately arranged, the blocking pillars are used for blocking materials located at two sides of the extending direction of the material channel, and a material inlet end of the material channel facing the first material pushing device is in a funnel shape for receiving and leaking the materials pushed by the first material pushing member.

Further, in some embodiments of the present application, a material inlet end of the material passage facing the first pushing device is funnel-shaped.

Further, in some embodiments of the present application, the variable pitch assembly includes a preset number of first variable pitch units and second variable pitch units, which are alternately arranged, a trough is arranged at the upper end of each of the first variable pitch units and the second variable pitch units, and the sum of the variation distances of the preset number of the first variable pitch units and the second variable pitch units is equal to the preset distance.

Further, in some embodiments of the present application, each of the first pitch varying units includes a first pitch varying body, a first hook and a first receiving groove, and each of the second pitch varying units includes a second pitch varying body, a second hook and a second receiving groove, and the first hook is engaged with the second receiving groove and the second hook is engaged with the first receiving groove to vary a distance between the first pitch varying body and the second pitch varying body.

Further, in some embodiments of the present application, the first hook is adjustably mounted to the first pitch body and movably hooked in the corresponding second receiving groove of the second pitch unit, the second hook is adjustably mounted to the second pitch body and movably hooked in the corresponding first receiving groove of the first pitch unit, the first hook and the second hook are movable in the corresponding second receiving groove and the first receiving groove, respectively, the movement brings the pitch assembly into the first position when the first pitch body and the second pitch body are brought into close proximity to each other, and the movement brings the pitch assembly into the second position when the first pitch body and the second pitch body are brought away from each other by the predetermined distance.

Further, in some embodiments of this application, receive the material rack include the stabilizer blade and by the platform that the stabilizer blade supported, the platform still includes pan feeding mouth, conveyer belt and backstop piece, the pan feeding mouth is located one end on the platform for receive from outside material, the conveyer belt is located on the platform, in order to be used for conveying the material that the pan feeding mouth received, the backstop piece is located on the platform and with the pan feeding mouth sets up relatively, in order to be used for backstop and temporary storage the material that the conveyer belt conveys.

Further, in some embodiments of the present application, the first pushing member includes a plurality of ribs that are equally spaced, a space between two adjacent ribs is not less than a width of one material, and the plurality of ribs push the material to the variable pitch device every distance of at least one material.

Further, in some embodiments of the present application, the second pushing member includes a pushing plate, and the pushing plate is driven by the third driving member to move horizontally and vertically.

Further, in some embodiments of the present application, the third driving member includes a first cylinder, a second cylinder and a connecting member connecting the first cylinder and the second cylinder, the first cylinder is used for driving the second cylinder to move along the vertical direction, and the second cylinder is connected to the push plate and used for driving the push plate to move along the horizontal direction.

Above-mentioned displacement pay-off tool pushes away the material to the displacement subassembly through the guide spare through first material pushing component, follows through second driving piece drive displacement subassembly predetermined interval of first position change to second position, pushes away the material that is in the second position on the material pushing component promotion displacement subassembly through the third driving piece drive second, makes the material drop in the material acupuncture point that displacement pay-off tool and second pushed away the material that the piece corresponds the setting to accomplish the displacement pay-off, compare in manual operation, not only can reduce the demand to the manpower, and promote the efficiency of material loading, and then promote holistic production rhythm and efficiency.

Drawings

Fig. 1 illustrates a schematic structural diagram of a pitch feeding jig in an embodiment.

Fig. 2 is a schematic structural diagram of a first pushing device in an embodiment.

Fig. 3 is a schematic structural diagram of a pitch device according to an embodiment.

FIG. 4 illustrates a schematic structural diagram of a pitch assembly in one embodiment.

FIG. 5 illustrates an exploded view of a pitch assembly in one embodiment.

FIG. 6 illustrates a schematic structural view taken along line VI-VI in FIG. 4 prior to pitch change of the pitch assembly in one embodiment.

FIG. 7 illustrates a schematic structural view taken along line VI-VI in FIG. 4 after the pitch assembly has been pitched in one embodiment.

Fig. 8 is a schematic structural view of a second pushing device in an embodiment.

Fig. 9 is a schematic structural diagram of a feeding device in an embodiment.

Description of the main elements

The following detailed description will further illustrate the present application in conjunction with the above-described figures.

Detailed Description

The technical solutions in the embodiments of the present application will be described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are only a part of the embodiments of the present application, and not all of the embodiments.

It will be understood that when an element is referred to as being "mounted on" another element, it can be directly on the other element or intervening elements may also be present. When a component is referred to as being "disposed on" another component, it can be directly on the other component or intervening components may also be present.

Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs. The terminology used herein in the description of the present application is for the purpose of describing particular embodiments only and is not intended to be limiting of the application. As used herein, the term "or/and" includes any and all combinations of one or more of the associated listed items.

The embodiment of the application provides a variable-pitch feeding jig, including receiving frame, first blevile of push, variable-pitch device and second blevile of push, receiving frame is used for receiving and keeping in and comes from outside material, first blevile of push includes first driving piece and connects in the first material pushing piece of first driving piece, first driving piece is used for driving first material pushing piece and promotes the material that receiving frame received and kept in at interval, variable-pitch device includes the guide spare, the second driving piece and the variable-pitch subassembly of connecting in the second driving piece, the guide spare is used for leading to the material that first material pushing piece promoted, make the variable-pitch subassembly receive and keep in with first position the material that derives from the guide spare, the second driving piece is used for driving the variable-pitch subassembly and changes predetermined interval to the second position from first position, second blevile of push includes the third driving piece and connects in the second material pushing piece of third driving piece, the third driving piece is used for driving the second material pushing piece and promotes the material in the variable-pitch subassembly that arrives the second position to the second position And the material acupuncture points of the variable-pitch feeding jig are arranged corresponding to the second pushing piece so as to finish variable-pitch feeding.

Above-mentioned displacement material feeding unit, push away the material to the displacement subassembly through the guide spare through first material pushing component, change predetermined interval to the second position from the first position through second driving piece drive displacement subassembly, push away the material that is in the second position on the material pushing component promotion displacement subassembly through the third driving piece drive second, make the material drop the displacement pay-off tool push away the material acupuncture point that the material piece corresponds the setting with the second, in order to accomplish the displacement pay-off, compare in manual operation, not only can reduce the demand to the manpower, and promote the efficiency of material loading, and then promote holistic production rhythm and efficiency.

Some embodiments of the present application will be described in detail below with reference to the accompanying drawings.

Fig. 1 illustrates a perspective view of a pitch-variable feeding jig 100 in an embodiment, in which the pitch-variable feeding jig 100 is used for conveying materials 200 to preset material acupuncture points of the pitch-variable feeding jig 100 at preset intervals, the acupuncture points may be acupuncture points to be clamped and picked up by a human or a mechanical hand, and the number of the acupuncture points is consistent with the number of the materials.

A first embodiment according to the present invention will now be described with reference to fig. 1. In the first embodiment, the pitch-variable feeding jig 100 includes a material receiving frame 10, a first material pushing device 20, a pitch-variable device 30, and a second material pushing device 40, wherein the first material pushing device 20 and the second material pushing device 40 are mounted on the material receiving frame 10, and the pitch-variable device 30 abuts against the second material pushing device 40.

The variable-pitch feeding jig 100 in the first embodiment pushes the materials received and temporarily stored in the material receiving frame 10 to the variable-pitch device 30 through the first material pushing device 20, adjusts the distance between the material channels through the variable-pitch device 30 to make the distance between the material channels consistent with the distance between the material channels and the material acupuncture points, and then pushes the materials to the material acupuncture points of the variable-pitch feeding jig 100, which are arranged corresponding to the second material pushing device 40, through the second material pushing device 40.

Some specific embodiments of the configurations and functions of the receiving frame 10, the first pushing device 20, the distance varying device 30, and the second pushing device 40 of the distance varying feeding jig 100 will be described below with reference to fig. 1 to 4.

First, the configuration of the material receiving frame 10 will be explained with reference to fig. 1.

The material receiving frame 10 comprises a support leg 11 and a platform 12, wherein the support leg 11 is fixed at the corner position of the bottom of the platform 12 and used for supporting the platform 12. The platform 12 is used to support the first pusher 20 and the second pusher 40. In one embodiment, the platform 12 has a generally rectangular configuration, and the platform 12 includes four legs 11, with the four legs 11 corresponding to respective corners of the platform 12.

Further, platform 12 includes pan feeding mouth 121, conveyer belt 122 and backstop 123, and pan feeding mouth 121 locates the one end on platform 12 to be used for receiving the material that comes from outside, and conveyer belt 122 locates on platform 12, and with the material that is used for conveying pan feeding mouth 121 to receive, backstop 123 locates on platform 12 and sets up with pan feeding mouth 121 relatively, in order to be used for backstop and the material that conveying belt 122 conveys of keeping in. In one embodiment, the inlet 121 is flared to facilitate the entry of external materials. In one embodiment, the stop block 123 is movably disposed on the platform 12, so that an operator can manually or automatically adjust the position of the stop block 123 on the platform 12 by a controller to adjust the position arrangement length of the material.

Further, the platform 12 further includes a material guiding structure, the material guiding structure is covered on the platform 12 to form a material guiding groove 124 with the conveyor belt 122, and the material guiding groove 124 is disposed adjacent to the material feeding port 121 for guiding the materials to be arranged in order.

Next, the configuration of the first pusher 20 will be described with reference to fig. 2.

The first pushing device 20 includes a first driving member 21 and a first pushing member 22 connected to the first driving member 21, the first driving member 21 is fixed on the platform 12, and the first driving member 21 is used for driving the first pushing member 22 to move so as to push the material to the distance varying device 30. In one embodiment, the first driver 21 is a cylinder.

Further, the first pushing member 22 includes a plurality of equally spaced ribs 221, and each rib 221 is disposed in parallel and spaced apart from each other and substantially parallel to the plane of the belt 122. The rib 221 is used for pushing the material in the moving direction thereof under the driving of the first driving member 21, so that the material moves to the pitch varying device 30 along the pushing direction of the rib 221. In one embodiment, the distance between adjacent ribs 221 is at least the width of one material, in other words, the distance between two adjacent ribs 221 is not less than the width of one material. It is understood that the spacing between the plurality of ribs 221 may be adjusted according to the spacing of the acupuncture points of the material. The spacing between the ribs 221 can be the same or can vary, for example, on the same pusher 22, where the spacing between one adjacent rib 221 is one material width and the spacing between another adjacent rib 221 is two material widths.

Next, the configuration of the pitch device 30 will be described with reference to fig. 3.

The pitch device 30 includes a material guiding member 31, a pitch assembly 32, and a second driving member 33 connected to the pitch assembly 32.

The material guide 31 includes a bottom plate 311 and a plurality of blocking posts 312 fixed to the bottom plate 311. The bottom plate 311 is fixed to the platform 12, the blocking posts 312 are substantially parallel and are disposed on the bottom plate 311 at intervals, and the blocking posts 312 and the pitch-variable assembly 33 are substantially located on the same horizontal plane. The blocking pillars 312 form a material passage 313 between adjacent blocking pillars 312 for receiving and leaking the material pushed by the first pusher 22, and the blocking pillars 312 block the material on both sides of the extending direction of the material passage 313. In one embodiment, an end of each blocking pillar 312 away from the pitch assembly 33 is pointed to form a funnel shape, so that the material passage 313 facing the end of the first pusher 22 is shaped like a funnel to facilitate the first pusher 22 pushing the material into the material guiding member 31.

Next, the construction of the pitch assembly 32 will be described with reference to fig. 4 and 5.

The pitch assembly 32 includes first and second pitch units 321 and 322 alternately arranged. It is understood that the number of the first pitch unit 321 and the second pitch unit 322 is adjusted according to the length of the material guide member 31.

The first pitch varying unit 321 includes a first pitch varying body 3211, a first hook 3212, and a first receiving groove 3213, and the second pitch varying unit 322 includes a second pitch varying body 3221, a second hook 3222, and a second receiving groove 3223. The first accommodating groove 3213 and the second accommodating groove 3223 respectively penetrate through the first variable pitch body 3211 and the second variable pitch body 3221. It can be understood that the first receiving groove 3213 and the second receiving groove 3223 are both provided therein with a hook block 323 for hooking the first hook 3212 and the second hook 3222. The first hook 3212 is movably hooked in the second receiving groove 3223, and the second hook 3222 is movably hooked in the first receiving groove 3213, by adjusting positions of the first hook 3212 and the second hook 3222 in the corresponding second receiving groove 3223 and the first receiving groove 3213, a distance between the adjacent first variable-pitch body 3211 and the second variable-pitch body 3221 is adjusted. It can be understood that the distance-changing assembly 32 is changed is the distance of the gap between the hook block 323 and the first and second hooks 3212 and 3222, respectively.

In one embodiment, the first and second hooks 3212 and 3222 are respectively and correspondingly connected to the first and second pitch bodies 3211 and 3221 by screws, threads, or engagement. In one embodiment, a trough 324 is provided at the upper end of the first pitch body 3211 and the second pitch body 3221 for receiving the material 200 in the material guiding member 31.

In one embodiment, the first pitch body 3211 and the second pitch body 3221 are generally rectangular parallelepiped structures.

In an embodiment, each first variable-pitch unit 321 includes two first hooks 3212 and two first receiving grooves 3213, each second variable-pitch unit 322 includes two second hooks 3222 and two second receiving grooves 3223, wherein the two first hooks 3212 are disposed on two sides of the first variable-pitch body 3211, the two first receiving grooves 3213 are disposed between the two first hooks 3212, the two second receiving grooves 3223 are disposed on two sides of the second variable-pitch body 3221, and the two second hooks 3222 are disposed between the two second receiving grooves 3223. It is understood that the positions of the first hooks 3212, the first receiving grooves 3213, the second hooks 3222 and the second receiving grooves 3223 are not limited to the above-mentioned setting, and other structures are also possible, such as two first hooks 3212 and two first receiving grooves 3213 are alternately arranged, and two second hooks 3222 and two second receiving grooves 3223 are alternately arranged; or two first accommodation grooves 3213 are relatively disposed on both sides of the first variable-pitch body 3211, two first hooks 3212 are disposed between the two first accommodation grooves 3213, two second hooks 3222 are relatively disposed on both sides of the second variable-pitch body 3221, and two second accommodation grooves 3223 are disposed between the two second hooks 3222, as long as the first variable-pitch body 3211 and the second variable-pitch body 3221 are matched in a variable-pitch manner.

To further illustrate the cooperation of the first pitch body 3211 and the second pitch body 3221, reference is also made to fig. 3 above. The second driving member 33 is fixed to the first pitch changing body 3211 or the second pitch changing body 3221 adjacent to the second driving member 33, and the first pitch changing body 3211 or the second pitch changing body 3221 located at the end is pulled to further drive the other first pitch changing body 3211 and the second pitch changing body 3221 connected in a hooking manner in sequence to move, so as to realize pitch changing. In one embodiment, the second driving member 33 is an air cylinder, a telescopic shaft of the air cylinder is fixed to the first pitch body 3211 or the second pitch body 3221 at the end, and the pitch assembly 32 is opened by retracting the telescopic shaft of the air cylinder, so that the distance between the adjacent first pitch unit 321 and the second pitch unit 322 is consistent with the distance between the acupuncture points of the material to be filled. It can be understood that, in order to realize the pitch of the pitch-changing assembly 32, for the first pitch-changing body 3211 or the second pitch-changing body 3221 located at the end, the first pitch-changing body 3211 or the second pitch-changing body 3221 at one end is fixed to the second driving member 33, and the first pitch-changing body 3211 or the second pitch-changing body 3221 at the other end is in a fixed state and cannot move.

The pitch assembly 32 further comprises a carrier 34 for carrying the pitch assembly 32 and the second drive member 33. The bearing table 34 includes a fixing block 341, and the fixing block 341 is disposed opposite to the second driving member 33 and is used to fix the first pitch body 3211 or the second pitch body 3221 located at the end portion.

Referring to fig. 6, fig. 6 is a schematic structural diagram of the pitch change assembly 32 before pitch change in an embodiment, at this time, the second driving member 33 is in an extended state, the adjacent first pitch change unit 321 and the second pitch change unit 322 are tightly connected, and a gap exists between the hook and the corresponding groove.

Referring to fig. 7, fig. 7 is a schematic structural diagram of the pitch change assembly 32 in an embodiment, at this time, the second driving element 33 is in a retracted state, the first pitch change unit 321 and the second pitch change unit 322 are pulled to move, a distance between the adjacent first pitch change unit 321 and the second pitch change unit 322 is a pitch change distance, and at this time, the hook abuts against the corresponding groove.

Next, the configuration of the second pushing device 40 will be described with reference to fig. 8.

The second pushing device 40 includes a third driving member and a pushing plate 41 connected to the third driving member, the third driving member is used for driving the pushing plate 41 to move in the horizontal direction and the vertical direction, and pushing the material on the variable pitch assembly 32, so that the material falls into the material acupuncture points corresponding to the pushing plate 41.

In one embodiment, the third driving member includes a first cylinder 42, a second cylinder 43 and a connecting plate 44, the first cylinder 42 is fixed to the platform 12, the connecting plate 44 is connected to the first cylinder 42 and the second cylinder 43, the second cylinder 43 is connected to the push plate 41, the first cylinder 42 is configured to drive the connecting plate 44 and the second cylinder 43 connected to the connecting plate 44 to move in a direction perpendicular to the pitch change assembly 32, so that a plane of an end surface of the push plate 41 facing the pitch change assembly 32 is located between the plane of the pitch change assembly 32 and a plane of the material, and the second cylinder 43 is configured to drive the push plate 41 to move in a horizontal direction, so as to push the material on the pitch change assembly 32 to the material acupuncture points.

In one embodiment, the pitch-variable feeding jig 100 further includes a feeding device 50. Next, the configuration of the feeding device 50 will be described with reference to fig. 9.

The feeding device 50 comprises a support frame 51, a platform 52 and a feeding assembly 53, wherein the platform 52 is fixed on the support frame 51, and the platform 52 is used for bearing the feeding assembly 53 and the bearing table 34. In one embodiment, the bottom of the supporting frame 51 is provided with a supporting leg 511, and the supporting leg 511 is a telescopic structure and is used for adjusting the height of the platform 52, so that the height of the variable pitch assembly 32 on the platform 52 is adapted to the height of the material on the platform 12.

The feeding assembly 53 includes a feeding unit 531, a slider 532, and a slide rail 533, the slide rail 533 is fixed to the platform 52, the slider 532 is slidably connected to the slide rail 533, and the feeding unit 531 is installed on the slider 532.

The feeding unit 531 is provided with a plurality of accommodating holes 5311 serving as the material holes, and is configured to receive the material pushed by the push plate 41 and feed the received material. The accommodating holes 5311 are arranged in parallel and at intervals, and the distance between the adjacent accommodating holes 5311 is the same as the distance between the adjacent first variable-pitch body 3211 and the second variable-pitch body 3221 after the pitch change. The feeding unit 531 has a substantially rectangular parallelepiped structure.

The number of the slide rails 533 is two, the two slide rails 533 are substantially parallel to each other and are mounted on the platform 52, each slide rail 533 is provided with a slider 532, and the feeding unit 531 is mounted on the two sliders 532 respectively in a fastening or buckling manner.

The feeding assembly 53 further includes a limiting block 534, and the limiting block 534 is fixed on the platform 52 and located in the moving direction of the feeding unit 531 for limiting the position of the feeding unit 531 and preventing the feeding unit 531 from falling off from the slide rail 533.

The feeding assembly 53 further includes a fourth driving member, which is fixed to the platform 52 and connected to the slider 532, and is configured to drive the slider 532 to reciprocate on the slide rail 533, so as to drive the feeding unit 531 to reciprocate on the platform 52, so as to conveniently carry away the feeding unit 531 loaded with the material and transport the empty feeding unit 531 back to wait for loading the material.

When the variable-pitch feeding jig 100 is used, firstly, materials are placed on the conveyor belt 122 through the feeding port 121, the materials are orderly arranged through the stop block 123, then the first driving member 21 drives the first pushing member 22 to push the material into the trough 324 of the variable pitch assembly 32 through the material guiding member 31, at this time, the variable pitch assembly 32 is in a merging state, the first pitch-variable body 3211 and the second pitch-variable body 3221 connected by hooking are pulled by the second driving member 33, so that the distance between the first pitch-variable body 3211 and the second pitch-variable body 3221 is consistent with the distance between the accommodating holes 5311 on the feeding unit 531, then, the third driving member drives the push plate 41 to move in the horizontal direction and the vertical direction, so as to push the material on the variable pitch assembly 32, and the material falls into a material acupoint (i.e., the accommodating acupoint 5311 on the feeding unit 531) of the variable pitch feeding jig 100, which is arranged corresponding to the push plate 41, to complete variable pitch feeding. Compared with manual operation, the variable-pitch feeding jig can reduce the requirement on manpower, improve the feeding efficiency and further improve the overall production rhythm.

It should be understood by those skilled in the art that the above embodiments are only for illustrating the present application and are not to be taken as limiting the present application, and that suitable changes and modifications of the above embodiments are within the scope of the disclosure claimed in the present application as long as they are within the spirit and scope of the present application.

Claims (10)

1. The utility model provides a variable pitch pay-off tool which characterized in that, variable pitch pay-off tool includes:

the receiving rack is used for receiving and temporarily storing materials from the outside;

the first material pushing device comprises a first driving piece and a first material pushing piece connected to the first driving piece, and the first driving piece is used for driving the first material pushing piece to push the materials on the material receiving frame at intervals;

the distance changing device comprises a material guiding component, a second driving component and a distance changing component connected to the second driving component, wherein the material guiding component is used for guiding the material pushed by the first pushing component, so that the distance changing component receives and temporarily stores the material guided out from the material guiding component at a first position, and the second driving component is used for driving the distance changing component to change a preset distance from the first position to a second position; and

and the second material pushing device comprises a third driving piece and a second material pushing piece connected to the third driving piece, and the third driving piece is used for driving the second material pushing piece to push the materials in the variable-pitch assembly reaching the second position to material acupuncture points of the variable-pitch feeding jig, which are corresponding to the second material pushing piece, so as to complete variable-pitch feeding.

2. The pitch-variable feeding jig according to claim 1, characterized in that: the variable-pitch feeding jig further comprises a feeding device, the feeding device comprises a feeding unit, and the feeding unit is provided with accommodating holes serving as material acupuncture points and used for receiving materials pushed by the second pushing piece and feeding the received materials.

3. The pitch-variable feeding jig according to claim 1, characterized in that: the material guide piece comprises blocking columns and material channels which are arranged alternately, the blocking columns are used for blocking materials on two sides of the extending direction of the material channels, and the material channel faces to the material inlet end of the first material pushing device and is in a funnel shape so as to receive and leak the materials pushed by the first material pushing piece.

4. The pitch-variable feeding jig according to claim 1, characterized in that: the variable-pitch assembly comprises a first variable-pitch unit and a second variable-pitch unit which are arranged in an alternating mode in a preset number, material grooves are formed in the upper ends of the first variable-pitch unit and the second variable-pitch unit, and the sum of the variation distances of the first variable-pitch unit and the second variable-pitch unit in the preset number is equal to the preset distance.

5. The pitch-variable feeding jig according to claim 4, characterized in that: each first displacement unit includes first displacement body, first couple and first holding tank, each second displacement unit all includes second displacement body, second couple and second holding tank, first couple with the cooperation of second holding tank and second couple with first holding tank cooperation is used for changing the distance between first displacement body and the second displacement body.

6. The pitch-variable feeding jig according to claim 5, characterized in that: the first hook is adjustably mounted on the first variable pitch body and movably hooked in a second accommodating groove of the corresponding second variable pitch unit, the second hook is adjustably mounted on the second variable pitch body and movably hooked in a first accommodating groove of the corresponding first variable pitch unit, the first hook and the second hook respectively move in the corresponding second accommodating groove and the corresponding first accommodating groove, the movement enables the variable pitch assembly to be in the first position when the first variable pitch body and the second variable pitch body are close to each other, and the movement enables the variable pitch assembly to be in the second position when the first variable pitch body and the second variable pitch body are away from each other by the preset distance.

7. The pitch-variable feeding jig according to claim 1, characterized in that: receive the work or material rest include the stabilizer blade and by the platform that the stabilizer blade supported, the platform still includes pan feeding mouth, conveyer belt and backstop piece, the pan feeding mouth is located one end on the platform to be used for receiving the material that comes from outside, the conveyer belt is located on the platform, in order to be used for conveying the material that the pan feeding mouth received, the backstop piece is located on the platform and with the pan feeding mouth sets up relatively, in order to be used for backstop and keeping in the material that the conveyer belt conveys.

8. The pitch-variable feeding jig according to claim 1, characterized in that: the first pushing piece comprises a plurality of ribs which are arranged at equal intervals, the interval between every two adjacent ribs is not smaller than the width of one material, and the plurality of ribs push the material to the variable-pitch device at intervals of the distance of at least one material.

9. The pitch-variable feeding jig according to claim 1, characterized in that: the second pushing piece comprises a push plate, and the push plate can move horizontally and vertically under the driving of the third driving piece.

10. The pitch-variable feeding jig of claim 9, characterized in that: the third driving piece comprises a first air cylinder, a second air cylinder and a connecting piece connected with the first air cylinder and the second air cylinder, the first air cylinder is used for driving the second air cylinder to move along the vertical direction, and the second air cylinder is connected with the push plate and used for driving the push plate to move along the horizontal direction.

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