Vegetable processing, conveying and discharging mechanism

Abstract

The invention relates to the technical field of vegetable processing, and discloses a vegetable processing, conveying and discharging mechanism which comprises a base, two supporting plates are fixedly connected to the top of the base, a conveying belt is arranged in the two supporting plates, a vertical plate is fixedly connected to the top of the base, and a discharging plate is arranged at the top of the base. A discharging plate is in a wave arc shape, the wave arc fluctuating structure can generate slight shaking in the vegetable moving process, a motor drives a cam to intermittently jack up the discharging plate, in combination with buffering and resetting of a damping rod and a first spring, the discharging plate generates regular shaking, soil and dust on the surfaces of vegetables are effectively removed, and the vegetable cleanliness is improved; and all the surfaces, including the bottoms and the side faces, of the vegetables can be fully exposed through front-back movement of the turning plate, it is ensured that dust, soil and impurities are thoroughly shaken off, and the situation that due to the fact that partial areas are blocked when the vegetables are stacked, cleaning is not thorough is avoided.

Description

Technical Field

[0001] The invention relates to the technical field of vegetable processing, in particular to a vegetable processing conveying and unloading mechanism. Background Art

[0002] Vegetables are a type of plant or fungus that is cooked as food, and are one of the indispensable foods in people's daily diet. Vegetables contain a variety of minerals, vitamins and other nutrients needed by the human body, and can supplement human nutrition after consumption.

[0003] For example, the publication number CN222063244U discloses a conveyor belt for vegetable processing, which includes a device body, a cleaning mechanism and a lifting mechanism. The device body includes a conveying platform, and a cleaning mechanism is installed at the upper end of the device body; the cleaning mechanism includes an insert block, and a brush plate is connected to the upper end of the insert block, and a cleaning block is inserted at the lower end of the brush plate, and a lifting mechanism is installed at the lower end of the device body. This conveyor belt for vegetable processing achieves the effect of quickly cleaning the vegetable residues on the conveyor belt by installing the cleaning mechanism at the upper end of the device body, and achieves compatibility with different loading heights by installing the lifting mechanism at the lower end of the device body.

[0004] Vegetables may contain impurities such as dust. Dust may be mixed with foreign objects such as pebbles and metal chips. Dust attached to the surface of vegetables will affect their appearance and reduce the value of the goods. Therefore, the dust and impurities on the vegetables need to be cleaned. Summary of the invention

[0005] The technical problem to be solved by the present invention is to provide a vegetable processing, conveying and unloading mechanism in view of the deficiencies in the above-mentioned prior art.

[0006] In order to solve the above technical problems, the technical solution adopted by the present invention is: a vegetable processing, conveying and unloading mechanism, including a base, two supporting plates are fixedly connected to the top of the base, conveyor belts are arranged inside the two supporting plates, a vertical plate is fixedly connected to the top of the base, a unloading plate is arranged on the top of the base, the unloading plate is in a wavy arc shape, and the wavy arc undulating structure can produce slight shaking during the movement of vegetables, helping to shake off dust, soil and impurities attached to the surface of the vegetables, a dust removal mechanism is arranged on the top of the base, and the dust removal mechanism includes a motor, the motor is fixedly connected to the top of the vertical plate, and the conveyor belt of the motor The output end is fixedly connected with a rotating rod through a coupling, and a cam is fixedly connected to the outer wall of the rotating rod, and cross plates are fixedly connected to the front and rear sides of the unloading plate respectively, and a connecting frame is fixedly connected to the bottom of the two cross plates, and a fixed block is fixedly connected to the bottom of the connecting frame, and the fixed block contacts the cam, and a damping rod is fixedly connected to the top of the base, and the damping rod is fixedly connected to the bottom of the cross plate. A first spring is wound around the outer wall of the damping rod, and the cam is driven by a motor to intermittently lift the unloading plate. Combined with the buffering and resetting of the damping rod and the first spring, the unloading plate vibrates regularly, which effectively removes dirt and dust on the surface of vegetables and improves the cleanliness of vegetables.

[0007] Preferably, the outer wall of the rotating rod is provided with two reciprocating wire grooves, the outer wall of the reciprocating wire groove is threadedly connected with a wire sleeve, the top of the wire sleeve is fixedly connected with a telescopic rod, the unloading plate is provided with a through hole, the top of the telescopic rod is fixedly connected with a flip plate, the flip plate is fitted with the top of the unloading plate, and the forward and backward movement of the wire sleeve will drive the telescopic rod to move forward and backward, thereby driving the flip plate to move forward and backward. Through the forward and backward movement of the flip plate, all surfaces of the vegetables, including the bottom and sides, can be fully exposed to ensure that dust, soil and impurities are thoroughly shaken off, to avoid partial areas being blocked when vegetables are piled up, resulting in incomplete cleaning.

[0008] Preferably, the bottom of the silk sleeve is fixedly connected to a limiting rod, and the limiting rod is slidably connected to the top of the base, and the limiting rod is provided to limit the silk sleeve.

[0009] Preferably, a flattening mechanism is provided on the top of the conveyor belt, and the flattening mechanism includes a fixed rod, and the fixed rod is fixedly connected between two support plates. The outer wall of the fixed rod is movably sleeved with a flat plate. The spreading plate can flatten the vegetables. Flattening the vegetables can fully expose all surfaces of the vegetables, including the bottom and sides, to facilitate more effective removal of dust, soil and impurities during subsequent shaking, so as to avoid accumulation together and cause low efficiency of shaking the dust.

[0010] Preferably, the outer wall of the fixing rod is sleeved with a second spring, and the second spring is arranged between the front side of the supporting plate and the back side of the spreading plate. The top of the flip plate is fixedly connected with a push plate, and the push plate is in contact with the spreading plate. When the flip plate moves forward, it will drive the push plate to move forward, and drive the spreading plate to move forward. When the spreading plate moves forward, the second spring will be stretched, and the vegetables will be flattened by the forward movement of the spreading plate. When the push plate moves backward, the spreading plate will automatically reset under the action of the second spring. In this reciprocating manner, the vegetables can be continuously flattened so that all surfaces of the vegetables, including the bottom and sides, are fully exposed, so as to more effectively remove dust, dirt and impurities during subsequent shaking.

[0011] Preferably, the tops of the two support plates are fixedly connected with a connecting plate, the connecting plate is in a door shape, a reciprocating wave hole is opened at the bottom of the connecting plate, a vertical hole is opened inside the spreading plate, the vertical hole is arranged on the outside of the fixed rod, the top inner wall of the vertical hole is fixedly connected with a third spring, the bottom of the third spring contacts with the bottom inner wall of the vertical hole, the top of the spreading plate is fixedly connected with a resistance rod, the top of the resistance rod resists with the reciprocating wave hole, when the spreading plate moves back and forth, the resistance rod at the top of the spreading plate resists with the reciprocating wave hole at the bottom of the connecting plate, so that during the process of the spreading plate moving back and forth, the third spring in the vertical hole is continuously compressed and released, thereby further enhancing the shaking effect of the spreading plate, shaking off dust, soil and impurities attached to the surface of the vegetables, and improving the cleaning effect.

[0012] Preferably, an anti-sticking mechanism is provided on the front side of the support plate, and the anti-sticking mechanism includes a rotating shaft, which is rotatably connected between the two support plates, and a scraper is fixedly connected to the outer wall of the rotating shaft, and the left end of the scraper is in contact with the conveyor belt. When the conveyor belt is driven, the scraper continuously scrapes the surface of the conveyor belt to scrape off the vegetable residues stuck on the conveyor belt to prevent the residues from causing blockage or poor operation of the conveyor belt, thereby ensuring continuous operation of the production line.

[0013] Preferably, an arc groove is provided on the front of the support plate, a slider is slidably connected inside the arc groove, a fourth spring is fixedly connected between the bottom of the slider and the inner wall of the arc groove, the scraper is rotatably connected to the front of the slider, a top rod is fixedly connected to the top of the flip plate, the top rod is in contact with the bottom of the scraper, and the top rod fixed on the top of the flip plate is in contact with the bottom of the scraper. When the flip plate reciprocates up and down, the top rod pushes the scraper to shake up and down, avoiding the accumulation of residues on the edge of the scraper, ensuring that the scraper continues to work efficiently.

[0014] The present invention adopts the above technical solution to bring the following beneficial effects:

[0015] 1. A vegetable processing and conveying feeding mechanism, which intermittently lifts the feeding plate through a motor-driven cam, and combines the buffering and resetting of the damping rod and the first spring to make the feeding plate vibrate regularly, effectively removing dirt and dust on the surface of vegetables and improving the cleanliness of vegetables. The front and rear movement of the flip plate can fully expose all surfaces of the vegetables, including the bottom and sides, to ensure that dust, dirt and impurities are completely shaken off, avoiding partial areas being blocked when vegetables are piled up, resulting in incomplete cleaning.

[0016] 2. This vegetable processing and conveying unloading mechanism can flatten vegetables by moving the spreading plate. Flattening the vegetables can fully expose all surfaces of the vegetables, including the bottom and sides, so as to more effectively remove dust, dirt and impurities during subsequent shaking to avoid accumulation and low efficiency of shaking dust. The spreading plate can shake while flattening, so as to shake off dust, dirt and impurities attached to the surface of the vegetables and improve the cleaning effect.

[0017] 3. This kind of vegetable processing conveying and unloading mechanism can scrape off sticky vegetable residues through a scraper to prevent it from causing blockage or poor operation of the conveyor belt. The scraper can prevent this from happening and ensure the continuous operation of the production line to avoid affecting the dust removal efficiency of the vegetables. The up and down shaking of the scraper can prevent vegetable residues from accumulating on the edge of the scraper, ensuring that the scraper continues to work efficiently. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a front view of the structure of the present invention;

[0019] Figure 2 It is a first cross-sectional view of the structure of the present invention;

[0020] Figure 3 This is an enlarged view of structure A of the present invention;

[0021] Figure 4 It is a second cross-sectional view of the structure of the present invention;

[0022] Figure 5 It is an enlarged view of structure B of the present invention;

[0023] Figure 6 It is a third cross-sectional view of the structure of the present invention;

[0024] Figure 7 It is an enlarged view of structure D of the present invention.

[0025] In the figure: 1, base; 2, support plate; 3, conveyor belt; 4, vertical plate; 5, unloading plate; 6, dust removal mechanism; 611, motor; 612, rotating rod; 613, cam; 614, horizontal plate; 615, connecting frame; 616, fixed block; 617, damping rod; 618, first spring; 619, reciprocating wire groove; 620, wire sleeve; 621, telescopic rod; 622, through hole; 623, flip Moving plate; 7, flattening mechanism; 711, fixing rod; 712, flattening plate; 713, second spring; 714, push plate; 715, connecting plate; 716, reciprocating wave hole; 717, vertical hole; 718, third spring; 719, resistance rod; 8, anti-sticking mechanism; 811, rotating shaft; 812, scraper; 813, arc groove; 814, slider; 815, fourth spring; 816, push rod. DETAILED DESCRIPTION

[0026] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0027] See also Figure 1-7One embodiment of the present invention is: a vegetable processing conveying and unloading mechanism, comprising a base 1, two support plates 2 are fixedly connected to the top of the base 1, a conveyor belt 3 is arranged inside the two support plates 2, a vertical plate 4 is fixedly connected to the top of the base 1, a unloading plate 5 is arranged on the top of the base 1, and the unloading plate 5 is in a wave arc shape. The wave arc undulating structure can produce slight shaking during the movement of vegetables, helping to shake off dust, soil and impurities attached to the surface of the vegetables, and a dust removal mechanism 6 is arranged on the top of the base 1. The dust removal mechanism 6 includes a motor 611, and the motor 61 1 is fixedly connected to the top of the vertical plate 4, the output end of the motor 611 is fixedly connected to the rotating rod 612 through a coupling, the outer wall of the rotating rod 612 is fixedly connected to the cam 613, the front and rear sides of the blanking plate 5 are respectively fixedly connected to the horizontal plates 614, the bottoms of the two horizontal plates 614 are fixedly connected to the connecting frames 615, the bottoms of the connecting frames 615 are fixedly connected to the fixing blocks 616, and the fixing blocks 616 are in contact with the cam 613, and the top of the base 1 is fixedly connected to the damping rod 617, the damping rod 617 is fixedly connected to the bottom of the horizontal plate 614, and the outer wall of the damping rod 617 is wound around A first spring 618 is provided, and the cam 613 is driven by the motor 611 to intermittently lift the unloading plate 5. Combined with the buffering and resetting of the damping rod 617 and the first spring 618, the unloading plate 5 is caused to vibrate regularly, effectively removing dirt and dust on the surface of vegetables and improving the cleanliness of vegetables. The outer wall of the rotating rod 612 is provided with two reciprocating wire grooves 619, and the outer wall of the reciprocating wire groove 619 is threadedly connected with a wire sleeve 620, and the top of the wire sleeve 620 is fixedly connected with a telescopic rod 621. A through hole 622 is provided on the unloading plate 5, and the top of the telescopic rod 621 is fixedly connected with a flip plate 62 3. The flip plate 623 fits with the top of the unloading plate 5. The forward and backward movement of the wire sleeve 620 will drive the telescopic rod 621 to move forward and backward, thereby driving the flip plate 623 to move forward and backward. The forward and backward movement of the flip plate 623 can make all surfaces of the vegetables including the bottom and sides fully exposed to ensure that dust, soil and impurities are completely shaken off, avoiding partial areas from being blocked when vegetables are piled up, resulting in incomplete cleaning. The bottom of the wire sleeve 620 is fixedly connected to a limit rod, and the limit rod is slidably connected to the top of the base 1. The limit rod is set to limit the wire sleeve 620.

[0028] Working principle: Start the motor 611, the motor 611 drives the rotating rod 612 to rotate, and the cam 613 on the rotating rod 612 rotates accordingly. When the cam 613 rotates to contact the fixed block 616, it will push up the fixed block 616, and then drive the connecting frame 615, the horizontal plate 614 and the blanking plate 5 to move upward. Since the blanking plate 5 is a wave arc, this upward movement will cause the blanking plate 5 to shake regularly. At the same time, the damping rod 617 and the first spring 618 wound around its outer wall play a role of buffering and resetting. After the unloading plate 5 is lifted up, it can be quickly reset under the elastic force of the first spring 618, and this cycle is repeated to achieve intermittent and regular shaking of the unloading plate 5, effectively removing dirt and dust on the surface of vegetables. The two reciprocating wire grooves 619 on the outer wall of the rotating rod 612 are threadedly connected to the wire sleeve 620. As the rotating rod 612 rotates, the wire sleeve 620 will make reciprocating linear motion back and forth under the action of the reciprocating wire grooves 619, and the telescopic rod 621 fixed on the top will move back and forth through the wire sleeve 620. The forward and backward movement of the telescopic rod 621 will drive the flip plate 623 to move back and forth, so that the vegetables can be flipped and dust, dirt and impurities on the vegetables can be shaken off.

[0029] See also Figure 1-7On the basis of the above embodiment, in another embodiment of the present invention, a flattening mechanism 7 is arranged on the top of the conveyor belt 3, and the flattening mechanism 7 includes a fixed rod 711, and the fixed rod 711 is fixedly connected between the two support plates 2. The outer wall of the fixed rod 711 is movably sleeved with a flattening plate 712, and the outer wall of the fixed rod 711 is sleeved with a second spring 713, and the second spring 713 is arranged between the front of the support plate 2 and the back of the flattening plate 712. The top of the flip plate 623 is fixedly connected with a push plate 714, and the push plate 714 is movably sleeved with a flattening plate 712. When the flip plate 623 moves forward, the push plate 714 is driven to move forward, and the spreading plate 712 is driven to move forward. When the spreading plate 712 moves forward, the second spring 713 is stretched. The vegetables are spread flat by the forward movement of the spreading plate 712. When the push plate 714 moves backward, the spreading plate 712 is automatically reset under the action of the second spring 713. The vegetables can be continuously spread flat in this reciprocating manner, so that all surfaces of the vegetables, including the bottom and sides, are filled with The top of the two support plates 2 is fixedly connected with a connecting plate 715, and the connecting plate 715 is in the shape of a door. A reciprocating wave hole 716 is provided at the bottom of the connecting plate 715. A vertical hole 717 is provided inside the spreading plate 712. The vertical hole 717 is arranged outside the fixing rod 711. A third spring 718 is fixedly connected to the top inner wall of the vertical hole 717. The bottom of the third spring 718 contacts the bottom inner wall of the vertical hole 717. The top of the spreading plate 712 A resistance rod 719 is fixedly connected, and the top of the resistance rod 719 resists against the reciprocating wave hole 716. When the spreading plate 712 moves back and forth, the resistance rod 719 at the top of the spreading plate 712 resists against the reciprocating wave hole 716 at the bottom of the connecting plate 715, so that during the movement of the spreading plate 712 back and forth, the third spring 718 in the vertical hole 717 is continuously compressed and released, further enhancing the shaking effect of the spreading plate 712, shaking off the dust, soil and impurities attached to the surface of the vegetables, and improving the cleaning effect.

[0030] Working principle: when the flip plate 623 moves forward, it will drive the push plate 714 to move forward, and drive the spreading plate 712 to move forward. When the spreading plate 712 moves forward, the second spring 713 will be stretched, and the vegetables will be spread flat by the forward movement of the spreading plate 712. When the push plate 714 moves backward, the spreading plate 712 will automatically reset under the action of the second spring 713. In this way, the vegetables can be continuously spread flat, so that all surfaces of the vegetables, including the bottom and sides, are fully exposed, which is convenient for more effective removal of dust, dirt and impurities during subsequent shaking. When the spreading plate 712 moves back and forth, the resistance rod 719 at the top of the spreading plate 712 and the reciprocating wave hole 716 at the bottom of the connecting plate 715 conflict with each other, so that during the forward and backward movement of the spreading plate 712, the third spring 718 in the vertical hole 717 is continuously compressed and released, further enhancing the shaking effect of the spreading plate 712, shaking off the dust, dirt and impurities attached to the surface of the vegetables, and improving the cleaning effect.

[0031] See also Figure 1-7 On the basis of the above embodiment, in another embodiment of the present invention, an anti-sticking mechanism 8 is provided on the front of the support plate 2, and the anti-sticking mechanism 8 includes a rotating shaft 811, and the rotating shaft 811 is rotatably connected between the two support plates 2. A scraper 812 is fixedly connected to the outer wall of the rotating shaft 811, and the left end of the scraper 812 is in contact with the conveyor belt 3. When the conveyor belt 3 is driven, the scraper 812 continuously scrapes the surface of the conveyor belt 3 to scrape off the vegetable residues stuck on the conveyor belt 3, so as to prevent the residues from clogging or blocking the conveyor belt 3. To prevent the production line from running smoothly, an arc groove 813 is provided on the front of the support plate 2, and a slider 814 is slidably connected inside the arc groove 813. A fourth spring 815 is fixedly connected between the bottom of the slider 814 and the inner wall of the arc groove 813. The scraper 812 is rotatably connected to the front of the slider 814. A top rod 816 is fixedly connected to the top of the flip plate 623. The top rod 816 contacts the bottom of the scraper 812. The top rod 816 fixed on the top of the flip plate 623 contacts the bottom of the scraper 812. When the flip plate 623 reciprocates up and down, the top rod 816 pushes the scraper 812 to shake up and down to prevent residues from accumulating on the edge of the scraper 812, ensuring that the scraper 812 continues to work efficiently.

[0032] Working principle: When the conveyor belt 3 is driving, the scraper 812 is in contact with the conveyor belt 3, so that the scraper 812 continuously scrapes the surface of the conveyor belt 3, scraping off the vegetable residues stuck on the conveyor belt 3, preventing the residues from blocking the conveyor belt 3 or causing poor operation, ensuring the continuous operation of the production line, and the top rod 816 fixed on the top of the flip plate 623 is in contact with the bottom of the scraper 812. When the flip plate 623 reciprocates up and down, the top rod 816 pushes the scraper 812 to shake up and down, preventing the residues from accumulating on the edge of the scraper 812, ensuring that the scraper 812 continues to work efficiently.

[0033] The present invention provides a vegetable processing conveying and unloading mechanism. There are many methods and ways to implement the technical solution. The above is only a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the principle of the present invention. These improvements and modifications should also be regarded as the protection scope of the present invention. All components not specified in this embodiment can be implemented by existing technologies.

Claims

1. A vegetable processing conveying and unloading mechanism, comprising a base (1), characterized in that: Two support plates (2) are fixedly connected to the top of the base (1), a conveyor belt (3) is arranged inside the two support plates (2), a vertical plate (4) is fixedly connected to the top of the base (1), a blanking plate (5) is arranged on the top of the base (1), and the blanking plate (5) is in a wave arc shape; A dust removal mechanism (6) is provided at the top of the base (1), and the dust removal mechanism (6) comprises a motor (611), the motor (611) is fixedly connected to the top of the vertical plate (4), the output end of the motor (611) is fixedly connected to a rotating rod (612) through a coupling, the outer wall of the rotating rod (612) is fixedly connected to a cam (613), the front and rear sides of the blanking plate (5) are respectively fixedly connected to horizontal plates (614), the bottoms of the two horizontal plates (614) are fixedly connected to connecting frames (615), the bottoms of the connecting frames (615) are fixedly connected to a fixing block (616), and the fixing block (616) is in contact with the cam (613), and the top of the base (1) is fixedly connected to a damping rod (617), the damping rod (617) is fixedly connected to the bottom of the horizontal plate (614), and the outer wall of the damping rod (617) is wound with a first spring (618).

2. A vegetable processing conveying and unloading mechanism according to claim 1, characterized in that: The outer wall of the rotating rod (612) is provided with two reciprocating wire grooves (619), the outer wall of the reciprocating wire groove (619) is threadedly connected with a wire sleeve (620), the top of the wire sleeve (620) is fixedly connected with a telescopic rod (621), a through hole (622) is provided on the blanking plate (5), the top of the telescopic rod (621) is fixedly connected with a flip plate (623), and the flip plate (623) is in contact with the top of the blanking plate (5).

3. A vegetable processing conveying and unloading mechanism according to claim 2, characterized in that: The bottom of the wire sleeve (620) is fixedly connected to a limiting rod, and the limiting rod is slidably connected to the top of the base (1).

4. A vegetable processing conveying and unloading mechanism according to claim 3, characterized in that: A flattening mechanism (7) is provided on the top of the conveyor belt (3), and the flattening mechanism (7) comprises a fixing rod (711), the fixing rod (711) is fixedly connected between two support plates (2), and a flattening plate (712) is movably sleeved on the outer wall of the fixing rod (711).

5. A vegetable processing conveying and unloading mechanism according to claim 4, characterized in that: The outer wall of the fixing rod (711) is sleeved with a second spring (713), and the second spring (713) is arranged between the front side of the supporting plate (2) and the back side of the spreading plate (712). The top of the flip plate (623) is fixedly connected with a push plate (714), and the push plate (714) is in contact with the spreading plate (712).

6. A vegetable processing conveying and unloading mechanism according to claim 5, characterized in that: A connecting plate (715) is fixedly connected to the top of the two support plates (2), and the connecting plate (715) is in a door shape. A reciprocating wave hole (716) is provided at the bottom of the connecting plate (715). A vertical hole (717) is provided inside the spreading plate (712), and the vertical hole (717) is arranged outside the fixing rod (711). A third spring (718) is fixedly connected to the top inner wall of the vertical hole (717), and the bottom of the third spring (718) contacts the bottom inner wall of the vertical hole (717). A resisting rod (719) is fixedly connected to the top of the spreading plate (712), and the top of the resisting rod (719) contacts the reciprocating wave hole (716).

7. A vegetable processing conveying and unloading mechanism according to claim 6, characterized in that: An anti-sticking mechanism (8) is provided on the front side of the support plate (2), and the anti-sticking mechanism (8) comprises a rotating shaft (811), the rotating shaft (811) is rotatably connected between the two support plates (2), and a scraper (812) is fixedly connected to the outer wall of the rotating shaft (811), and the left end of the scraper (812) is in contact with the conveyor belt (3).

8. A vegetable processing conveying and unloading mechanism according to claim 7, characterized in that: The front side of the support plate (2) is provided with an arc groove (813), the interior of the arc groove (813) is slidably connected with a slider (814), a fourth spring (815) is fixedly connected between the bottom of the slider (814) and the inner wall of the arc groove (813), the scraper (812) is rotatably connected to the front side of the slider (814), the top of the flip plate (623) is fixedly connected with a push rod (816), and the push rod (816) is in contact with the bottom of the scraper (812).

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