Push plate mechanism

Abstract

The utility model relates to the technical field of plate pushing machines, in particular to a plate pushing mechanism. The plate pushing mechanism comprises a rack, the cross beam is movably arranged on the rack, and a plurality of main pushing handles are arranged on the cross beam at intervals; the driving device is arranged on the rack, and the driving device is used for driving the cross beam to move along the X axis so as to push the plate in the X-axis direction; the two sides of the rack are provided with the two sets of guiding devices respectively, the two sides of the cross beam are connected with the two guiding devices respectively, and the guiding devices are used for guiding the cross beam when the cross beam moves along the X axis. In order to guarantee high-speed and stable pushing, the two guide devices are connected to the two sides of the cross beam correspondingly, the conveying / pushing speed, precision and stability of the cross beam to the plates are improved through the two guide devices, the saw cutting quality is improved, and the problem of large and small ends of the plates in machining is reduced or even avoided.

Description

TECHNICAL FIELD

[0001] The utility model relates to push plate machine technical field, concretely is a push plate mechanism. BACKGROUND

[0002] Electronic saw equipment will be used when processing plate material, electronic saw equipment can cut plate material automatically, greatly improve work efficiency, in the process that electronic saw cuts plate material, usually cooperate push plate equipment and use together, push plate equipment can push plate material to the saw blade of electronic saw equipment to complete the cutting of plate material.

[0003] But in the existing push plate equipment, often only set up guiding structure on one side of the frame, for example, set up slide rail and sliding block on one side of the frame to carry out single point guiding, or set up a group of main guide wheel and main guide rod on one side of the frame to cooperate and carry out single point guiding, but due to the overall span of push plate equipment is larger, generally above 4 meters, when feeding precision is lower when only one side carries out single point guiding, the position of plate material after pushing is not accurate enough, it is easy to lead to the cutting shape and size error of the cut plate material is larger, the width of the two sides of plate material is not consistent, downstream equipment such as edge banding machine still needs to cut plate material twice, reduce production efficiency and the utilization rate of plate material. SUMMARY

[0004] The utility model discloses a push plate mechanism, which aims to solve the technical problem of low feeding precision caused by one-side single-point guiding of the existing push plate equipment.

[0005] To achieve the above-mentioned purpose, the utility model provides a push plate mechanism, which comprises a frame;

[0006] A cross beam is movably arranged on the frame, and a plurality of main pushing hands are arranged on the cross beam at intervals.

[0007] A driving device is arranged on the frame, and the driving device is used to drive the cross beam to move along the X-axis to push the plate material along the X-axis direction.

[0008] A guiding device is arranged on both sides of the frame, and the two sides of the cross beam are connected with the two guiding devices respectively, and the guiding device is used to guide the cross beam when it moves along the X-axis.

[0009] Preferably, the guiding device on both sides of the cross beam comprises a main guide wheel and a main guide rod, the main guide rod is arranged on the frame and extends along the X-axis direction, and a plurality of main guide wheels are slidably arranged on the main guide rod, and each main guide wheel is connected with the cross beam.

[0010] Preferably, two ends of the cross beam are a first end and a second end respectively, the first end is a first mounting section to the middle of the cross beam, the second end is a second mounting section to the middle of the cross beam, the number of the main handles arranged on the first mounting section is greater than the number of the main handles arranged on the second mounting section; the first end and the second end are both connected with at least two main guide wheels;

[0011] The first end is also provided with an auxiliary guide device, the auxiliary guide device comprises a first auxiliary guide wheel, a second auxiliary guide wheel and an auxiliary guide rod, the auxiliary guide rod is parallel to the main guide rod and below the main guide rod, a plurality of the second auxiliary guide wheels are slidingly arranged on the auxiliary guide rod, the first auxiliary guide wheel is slidingly arranged on the main guide rod and between the two main guide wheels; the first auxiliary guide wheel and the second auxiliary guide wheel are both eccentric wheels.

[0012] Preferably, the outer circumferential surface of the main guide wheel, the first auxiliary guide wheel or the second auxiliary guide wheel is provided with a V-shaped guide groove, the main guide rod or the auxiliary guide rod is in a cylindrical shape; the main guide wheel connected with the second end is a floating guide wheel.

[0013] Preferably, it further comprises a lateral moving device and a secondary handle, the lateral moving device is arranged on any side of the frame, the secondary handle is arranged on the lateral moving device, the lateral moving device is used to drive the secondary handle to move along the Y axis to push the plate along the Y axis.

[0014] Preferably, the driving device comprises a driving member, a driving gear and a driving rack, the driving member is arranged on the cross beam, the output end of the driving member is connected with the driving gear, the driving rack is arranged on the frame and extends along the X axis, the driving gear is arranged in mesh with the driving rack.

[0015] Preferably, the driving rack is further provided with an adjusting gear for eliminating transmission gap, the adjusting gear is located outside the driving gear; the adjusting gear is provided with an arc-shaped adjusting groove, a connecting member passes through the arc-shaped adjusting groove of the adjusting gear and is connected with the driving gear.

[0016] Preferably, the main guide rod and / or the auxiliary guide rod is movably provided with a cleaning block, the cleaning block is used to scrape off the debris on the main guide rod or the auxiliary guide rod; the outer side of the two main guide wheels is provided with the cleaning block.

[0017] Preferably, the frame is further provided with a magnetic grid sensing member for detecting the position of the main guide wheel.

[0018] Preferably, the cross beam is further provided with a cover body, which covers the driving member and the cross beam.

[0019] The utility model discloses a push plate mechanism has the following beneficial effects:

[0020] 1. In order to guarantee high -speed stable push, this scheme is connected with two guide devices on the both sides of cross beam, and two guide devices promote the conveying / push material speed, accuracy and stability of cross beam to board, improve sawing quality, reduce even avoid the size head problem of board processing.

[0021] 2. By setting up auxiliary guide device at the first end of cross beam, it includes first auxiliary guide wheel, second auxiliary guide wheel, both are eccentric wheels, and the first auxiliary guide wheel is located between two main guide wheels, can guarantee that eccentric first auxiliary guide wheel always sticks to main guide rod movement, and eccentric second auxiliary guide wheel always sticks to auxiliary guide rod movement, guarantee the overall stability of guide device connected with the first end, improve push material accuracy. BRIEF DESCRIPTION OF DRAWINGS

[0022] In order to more clearly illustrate the technical scheme in the embodiment of the utility model or prior art, the following will be briefly introduced to the drawing needed to be used in the embodiment or prior art description, obviously, the drawing in the following description only some embodiments of the utility model, for ordinary skilled person in the art, under the premise of not paying creative labor, still can obtain other drawings according to the structure shown in these drawings.

[0023] Figure 1 It is the structure schematic diagram of the push plate mechanism of the utility model;

[0024] Figure 2 It is the sectional structure schematic diagram of the push plate mechanism of the utility model;

[0025] Figure 3 It is Figure 2 The local enlarged schematic view of A in the middle;

[0026] Figure 4 It is Figure 2 The local enlarged schematic view of B in the middle;

[0027] Figure 5 It is the partial structure schematic diagram of the push plate mechanism of the utility model;

[0028] Figure 6 It is the left view of cross beam and guide device in the push plate mechanism of the utility model;

[0029] Figure 7 It is the right view of cross beam and guide device in the push plate mechanism of the utility model;

[0030] Figure 8 It is the structure schematic view of the crossbeam in the push plate mechanism of the utility model;

[0031] Figure 9 It is the structure schematic view of the lateral moving device and the secondary push hand in the push plate mechanism of the utility model;

[0032] Figure 10 It is the partial structure schematic view of the driving device in the push plate mechanism of the utility model;

[0033] Figure 11 It is the partial structure schematic view of the guiding device in the push plate mechanism of the utility model.

[0034] In the drawing, 1 is the frame, 11 is the magnetic grid sensing part, 2 is the crossbeam, 21 is the main push hand, 22 is the first end, 23 is the second end, 24 is the cover body, 3 is the driving device, 31 is the driving gear, 32 is the driving rack, 33 is the adjusting gear, 331 is the arc adjusting groove, 34 is the connecting piece, 4 is the guiding device, 41 is the main guiding wheel, 411 is the guiding groove, 42 is the main guiding rod, 5 is the auxiliary guiding device, 51 is the first auxiliary guiding wheel, 52 is the second auxiliary guiding wheel, 61 is the lateral moving device, 62 is the secondary push hand, and 7 is the cleaning block.

[0035] The utility model discloses the realization, functional characteristics and advantages will be further explained with reference to the embodiment. Specific implementation

[0036] The technical scheme in the embodiment of the utility model will be described clearly and completely in the embodiment of the utility model in combination with the drawings, and obviously, the described embodiment is only a part of the embodiment of the utility model, not all the embodiment. Based on the embodiment in the utility model, all other embodiments obtained by the person skilled in the art without creative labor belong to the scope of the utility model protection.

[0037] It should be noted that if the embodiment of the utility model involves directionality indication, the directionality indication is only used to explain the relative position relationship, movement condition and the like between the components in a certain specific posture, and if the specific posture changes, the directionality indication also changes accordingly.

[0038] In addition, if the description of "first", "second" and the like is involved in the embodiments of the utility model, the description of "first", "second" and the like is only for the purpose of description, and cannot be understood as indicating or implying the relative importance of the indicated technical features or implicitly indicating the number of the indicated technical features. Therefore, the features limited by "first", "second" can be explicitly or implicitly included at least one of the features. In addition, the technical solutions of various embodiments can be combined with each other, but it must be based on the realization of ordinary skilled in the art, when the combination of technical solutions appears contradictory or unachievable, it should be considered that the combination of technical solutions does not exist, and it is not within the protection scope required by the utility model.

[0039] As shown in Figures 1 to 11 A push plate mechanism, comprising a rack 1;

[0040] A crossbeam 2 movably arranged on the rack 1, a plurality of main push hands 21 are arranged on the crossbeam 2 at intervals;

[0041] A driving device 3 arranged on the rack 1, the driving device 3 is used to drive the crossbeam 2 to move along the X axis, so as to push the plate along the X axis direction;

[0042] A guide device 4, two groups of guide devices 4 are arranged on both sides of the rack 1 respectively, and the two sides of the crossbeam 2 are connected with two guide devices 4 respectively, the guide device 4 is used to guide the crossbeam 2 when moving along the X axis.

[0043] The push plate mechanism in the scheme is particularly suitable for pushing wood-based plates, and can be used with electronic saw equipment or other processing equipment. Of course, the push plate mechanism is also suitable for processing other plates, such as plastic plates, steel plates, carbon fiber plates and the like.

[0044] The rack 1 of the scheme is a gantry structure, and the overall span is large, usually 4-7 meters long. The pushing speed of the push plate mechanism is fast, and the processing speed can reach 90 m / min. The crossbeam 2 is transversely arranged between the two arms of the rack 1 extending along the X axis direction, and the movement of the crossbeam 2 is realized by the driving device 3. In order to ensure the high-speed and stable pushing, two guide devices 4 are connected on both sides of the crossbeam 2 respectively, and the two guide devices 4 improve the conveying / pushing speed, precision and stability of the crossbeam 2 to the plate, improve the sawing quality, and reduce or even avoid the problem of large and small heads in plate processing.

[0045] Further, the guide device 4 on both sides of the cross beam 2 comprises a main guide wheel 41 and a main guide rod 42, the main guide rod 42 is arranged on the rack 1 and extends along the X-axis direction, a plurality of main guide wheels 41 are arranged on the main guide rod 42 in a sliding manner, and each main guide wheel 41 is connected with the cross beam 2. The cooperation of the main guide wheel 41 and the main guide rod 42 realizes accurate guidance of both sides of the cross beam 2, and the structure is simple and the guiding effect is good.

[0046] Further, the two ends of the cross beam 2 are a first end 22 and a second end 23, the first end 22 to the middle of the cross beam 2 is a first mounting section, the second end 23 to the middle of the cross beam 2 is a second mounting section, the number of main push hands 21 arranged on the first mounting section is greater than the number of main push hands 21 arranged on the second mounting section; the first end 22 and the second end 23 are both connected with at least two main guide wheels 41.

[0047] The first end 22 is also provided with an auxiliary guide device 5, the auxiliary guide device 5 comprises a first auxiliary guide wheel 51, a second auxiliary guide wheel 52 and an auxiliary guide rod, the auxiliary guide rod is parallel to the main guide rod 42 and located below the main guide rod 42, a plurality of second auxiliary guide wheels 52 are arranged on the auxiliary guide rod in a sliding manner, the first auxiliary guide wheel 51 is arranged on the main guide rod 42 in a sliding manner, and the first auxiliary guide wheel 51 is located between the two main guide wheels 41; the first auxiliary guide wheel 51 and the second auxiliary guide wheel 52 are both eccentric wheels.

[0048] In this embodiment, as shown in Figures 6 to 7 The pushing mechanism is usually used in cooperation with an electronic saw device, and the electronic saw device usually processes on one side frequently, so the pushing mechanism is provided with more groups of main push hands 21 on the main processing side (i.e. the first end 22), and the guiding accuracy requirement of the first end 22 is also higher than that of the second end 23 in actual use. For example, 13 groups of main push hands 21 are arranged on the cross beam 2, 8-9 groups of main push hands 21 are arranged on the first mounting section, and only 4-5 groups of main push hands 21 are arranged on the second mounting section, which is more reasonable in distribution and also reduces the cost.

[0049] In order to keep the first section and the second end 23 in good guiding effect, two groups of main guide wheels 41 are arranged on the main guide rod 42 on both sides of the cross beam 2. In order to further improve the guiding accuracy of the first end 22, the auxiliary guiding device 5 is arranged at the first end 22. Since the cross beam 2 itself has a long span, and the straightness of the main guide rod 42 and the coaxiality of the main guide wheel exist machining errors, it is impossible to ensure that the two main guide wheels are always in close contact with the main guide rod 42 in the entire X-axis direction. The main guide wheel 41 at a certain section of the main guide rod 42 may be suspended. The auxiliary guiding device 5 includes a first auxiliary guide wheel 51 and a second auxiliary guide wheel 52, both of which are eccentric wheels. The first auxiliary guide wheel 51 is located between the two main guide wheels 41, which can ensure that the eccentric first auxiliary guide wheel 51 always moves in close contact with the main guide rod 42. The eccentric second auxiliary guide wheel 52 always moves in close contact with the auxiliary guide rod, which ensures the overall stability of the guiding device 4 connected with the first end 22, improves the pushing accuracy, and avoids the size head problem of the plate processing as much as possible.

[0050] In actual installation, two main guide wheels 41 can be arranged at the first end 22 (left side of the cross beam 2), and a first auxiliary guide wheel 51 is arranged between the two main guide wheels 41. The above three guide wheels all slide along the main guide rod 42. The main guide rod 42 is below the auxiliary guide rod, and the auxiliary guide rod is provided with two groups, three groups or more second auxiliary guide wheels 52. The second end 23 (right side of the cross beam 2) is only provided with two groups of main guide wheels 41. In the preferred embodiment, three groups of limiting rollers can be added to the guiding device 4 of the second end 23.

[0051] The main pushing hand 21 can be a pneumatic clamp that can meet the production needs of various width plates and ensure stable clamping force.

[0052] Further, the outer peripheral surface of the main guide wheel 41, the first auxiliary guide wheel 51 or the second auxiliary guide wheel 52 is provided with a V-shaped guide groove 411, and the main guide rod 42 or the auxiliary guide rod is in a cylindrical shape. The main guide wheel 41 connected with the second end 23 is a floating guide wheel.

[0053] As Figure 11As shown, the V-shaped guide groove 411 is generally located at the middle of the main guide wheel 41, the first auxiliary guide wheel 51 or the second auxiliary guide wheel 52, can be well matched with the cylindrical main guide rod 42 or the auxiliary guide rod, and has a good guiding effect. Compared with the first mounting section of the cross beam 2, the second mounting section has a certain weight difference due to the smaller number of main pushing hands 21 arranged thereon, and the synchronization may not be consistent during guiding. Therefore, the driving guide wheel at the second end 23 is arranged as a floating guide wheel. Since the floating guide wheel is provided with a spring, the driving guide wheel at the second end 23 can be ensured to always contact the guide rod at the second end 23, and the cross beam 2 can always maintain a good guiding effect on both sides, thereby further improving the stability of the transmission on both sides.

[0054] In other embodiments, the V-shaped guide groove 411 can also be replaced by a U-shaped guide groove 411.

[0055] Further, the lateral moving device 61 and the auxiliary pushing hand 62 are further included, the lateral moving device 61 is arranged on any side of the rack 1, and the auxiliary pushing hand 62 is arranged on the lateral moving device 61. The lateral moving device 61 is used to drive the auxiliary pushing hand 62 to move along the Y-axis, so as to push the plate along the Y-axis direction.

[0056] In the embodiment, as shown in Figure 1 and Figure 9 As shown, the lateral moving device 61 and the auxiliary pushing hand 62 can be arranged on the left side arm or the right side arm of the rack 1. Since the auxiliary pushing hand 62 and the main pushing hand 21 are independently driven, the two can work independently or simultaneously, and can simultaneously push and cut two plates with different lengths and widths, thereby greatly improving the production efficiency. When only a single narrow plate needs to be produced, only the auxiliary pushing hand 62 can be used to work, so as to achieve the purpose of energy saving.

[0057] Further, the driving device 3 includes a driving member, a driving gear 31 and a driving rack 32. The driving member is arranged on the cross beam 2, the output end of the driving member is connected with the driving gear 31, the driving rack 32 is arranged on the rack 1 and extends along the X-axis direction, and the driving gear 31 is arranged in meshing with the driving rack 32.

[0058] The driving device 3 adopts a gear and rack transmission structure to provide conveying power for the movement of the cross beam 2. In the embodiment, the gear and rack transmission structure can be arranged on both sides of the cross beam 2 to ensure that the transmission on both sides of the cross beam 2 is stable and uniform. When the driving member (motor) rotates, the driving gear 31 rotates, and at this time, the driving gear 31 reciprocates on the driving rack 32 along the X-axis direction, thereby driving the cross beam 2, the main pushing hand 21 and the plate to move along the X-axis direction.

[0059] In other embodiments, the driving device 3 can also adopt a linear motor, a transmission structure of screw rod + slide rail.

[0060] Further, the driving rack 32 is also provided with an adjusting gear 33 for eliminating transmission clearance, and the adjusting gear 33 is located outside the driving gear 31; the adjusting gear 33 is provided with an arc-shaped adjusting groove 331, and the connecting piece 34 passes through the arc-shaped adjusting groove 331 of the adjusting gear 33 and is connected with the driving gear 31.

[0061] As shown in Figs. Figure 3 , Figure 4 and Figure 10 When the driving device 3 adopts a single gear and rack structure transmission, there may be a large gap between the gear and the rack after a long period of use, which will affect the precision of the reciprocating feeding. Therefore, the adjusting gear 33 is further arranged on the rack in the embodiment, and the adjusting gear 33 and the driving gear 31 are connected through the connecting piece 34 (which can actually be a bolt). When the clearance needs to be adjusted, the installation position of the bolt in the arc-shaped adjusting groove 331 is adjusted, so that the gap between the adjusted gear and the rack is smaller, a part of the transmission backlash is eliminated, the reciprocating feeding precision is improved, and the zero backlash transmission between the gear and the rack is ensured as much as possible.

[0062] Further, the main guide rod 42 and / or the auxiliary guide rod is movably provided with a cleaning block 7, and the cleaning block 7 is used for scraping off the debris on the main guide rod 42 or the auxiliary guide rod; the outer sides of the two main guide wheels 41 are each provided with the cleaning block 7.

[0063] In the embodiment, the cleaning block 7 is arranged on the outer sides of the two main guide wheels 41 (here, the inner side is between the two main guide wheels 41, and the outer side is the position outside the two main guide wheels 41), so as to remove the machining debris / dust on the guide rod. The cleaning block 7 is made of low-friction polytetrafluoroethylene material, the bottom end of the cleaning block 7 is arc-shaped to facilitate the adhesion with the outer wall of the guide rod, has the functions of self-cleaning and lubrication, improves the service life of the remaining parts, and reduces the maintenance cost. Preferably, a spring damping compensation wear can be arranged in the cleaning block 7, so that the cleaning block 7 is always in adhesion with the guide rod.

[0064] Further, the rack 1 is also provided with a magnetic grid sensing piece 11 for detecting the position of the main guide wheel 41. One side of the main guide wheel 41 is also provided with the magnetic grid sensing piece 11, and the structure of the rack 1 connected with the two sides of the cross beam 2 is two guide beams, and the magnetic grid sensing piece 11 is arranged on the guide beam of the rack 1. The magnetic grid sensing piece 11 can detect and close-loop feedback the position of the guide wheel, so as to determine the conveying precision and ensure the high-precision feeding of the push plate mechanism.

[0065] Further, the crossbeam 2 is further provided with a cover 24, which covers the driving member and the crossbeam 2. When the functional components, electric wires and the like on the crossbeam 2 are exposed and not closed, since the wood board processing belongs to high dust operation, there is a problem of inconvenient cleaning, and the accumulated dust is easy to cause damage to the electrical elements. Therefore, the cover 24 is arranged on the crossbeam 2, the driving member (motor) is arranged in the cover 24 of the crossbeam 2 to be closed, a high dustproof design is adopted, the service life of each electrical element on the crossbeam 2 is improved, and the explosion-proof capability of the push plate mechanism in a high dust environment is improved.

[0066] The above merely describes the preferred embodiments of the present application, and does not limit the patent scope of the present application, and any equivalent structural transformation, direct / indirect application in other related technical fields within the inventive concept of the present application, and the contents of the present application specification and drawings are included in the patent protection scope of the present application.

Claims

1. A pusher plate mechanism, characterized in that, The utility model relates to a kind of plate pushing machine, including: Rack (1); Crossbeam (2), it is movably arranged on the rack (1), multiple main push hands (21) are arranged at intervals on the crossbeam (2); Driving device (3), it is arranged on the rack (1), the driving device (3) is used to drive the crossbeam (2) moves along X axis, to push plate along X axis direction; Guide device (4), two groups of guide device (4) are respectively arranged on the both sides of the rack (1), the both sides of the crossbeam (2) are connected with two guide device (4), and the guide device (4) is used to guide when the crossbeam (2) moves along X axis.

2. The pusher plate mechanism of claim 1, wherein The guide device (4) of the both sides of the crossbeam (2) includes main guide wheel (41) and main guide rod (42), the main guide rod (42) is arranged on the rack (1) and extends along X axis direction, and several main guide wheels (41) are slidably arranged on the main guide rod (42), and each main guide wheel (41) is connected with the crossbeam (2).

3. A pusher plate mechanism according to claim 2, wherein The both ends of the crossbeam (2) are first end (22) and second end (23) respectively, the first end (22) to the middle of the crossbeam (2) is first mounting section, the second end (23) to the middle of the crossbeam (2) is second mounting section, and the number of main push hand (21) arranged on the first mounting section is greater than the number of main push hand (21) arranged on the second mounting section;The first end (22) and the second end (23) are connected with at least two main guide wheels (41); The first end (22) is also provided with auxiliary guide device (5), and the auxiliary guide device (5) includes first auxiliary guide wheel (51), second auxiliary guide wheel (52) and auxiliary guide rod, the auxiliary guide rod is parallel with the main guide rod (42) and is located below the main guide rod (42), a plurality of second auxiliary guide wheels (52) are slidably arranged on the auxiliary guide rod, the first auxiliary guide wheel (51) is slidably arranged on the main guide rod (42), and the first auxiliary guide wheel (51) is located between two main guide wheels (41);The first auxiliary guide wheel (51) and the second auxiliary guide wheel (52) are all eccentric wheels.

4. A pusher plate mechanism according to claim 3, wherein The outer circumferential surface of the main guide wheel (41), the first auxiliary guide wheel (51) or the second auxiliary guide wheel (52) is provided with V-shaped guide groove (411), and the main guide rod (42) or the auxiliary guide rod is in the form of cylinder;The main guide wheel (41) connected with the second end (23) is floating guide wheel.

5. The pusher plate mechanism of claim 1, wherein, It further includes lateral moving device (61) and vice push hand (62), any side of the rack (1) is provided with the lateral moving device (61), the vice push hand (62) is arranged on the lateral moving device (61), and the lateral moving device (61) is used to drive the vice push hand (62) moves along Y axis, to push the plate along Y axis direction.

6. The pusher plate mechanism of claim 1, wherein The driving device (3) comprises a driving member, a driving gear (31) and a driving rack (32), the driving member is arranged on the cross beam (2), the output end of the driving member is connected with the driving gear (31), the driving rack (32) is arranged on the rack (1) and extends along the X-axis direction, and the driving gear (31) is arranged in meshing with the driving rack (32).

7. A pusher plate mechanism according to claim 6, wherein An adjusting gear (33) for eliminating transmission gap is further arranged on the driving rack (32), the adjusting gear (33) is located outside the driving gear (31), an arc-shaped adjusting groove (331) is arranged on the adjusting gear (33), and a connecting member (34) is connected with the driving gear (31) through the arc-shaped adjusting groove (331) of the adjusting gear (33).

8. The pusher plate mechanism of claim 3, wherein, A cleaning block (7) is movably arranged on the main guide rod (42) and / or the auxiliary guide rod, the cleaning block (7) is used for scraping off the waste on the main guide rod (42) or the auxiliary guide rod, and the outer side of each of the two main guide wheels (41) is provided with the cleaning block (7).

9. The pusher plate mechanism of claim 2, wherein, A magnetic grid sensing member (11) for detecting the position of the main guide wheel (41) is further arranged on the rack (1).

10. The pusher plate mechanism of claim 6, wherein, The cross beam (2) is further provided with a cover (24), and the driving member and the cross beam (2) are covered in the cover (24).

Images