CN114308346A

CN114308346A - Building engineering is with system sand device that has anti-clogging function

Info

Publication number: CN114308346A
Application number: CN202210029284.1A
Authority: CN
Inventors: 梅运顺
Original assignee: Individual
Current assignee: Fujian Derui Industrial Technology Group Co ltd
Priority date: 2022-01-12
Filing date: 2022-01-12
Publication date: 2022-04-12
Anticipated expiration: 2042-01-12
Also published as: CN114308346B

Abstract

The invention relates to the technical field of constructional engineering, in particular to a sand making device with an anti-blocking function for constructional engineering. The technical problem is as follows: the sieve plate is easy to block, and the impact surface of the pendulum bob and the cobble material is single. The utility model provides a building engineering is with system sand device that has anti-clogging function, including support, casing, rubbing crusher constructs, pushing mechanism and rolls the mechanism, and the rigid coupling has the casing on the support, is equipped with rubbing crusher structure in the casing, and the lower part of casing is equipped with pushing mechanism, and pushing mechanism has rolls the mechanism. The crushing mechanism and the rebounding assembly realize the rapid and efficient crushing of cobblestones by the device, the pushing mechanism avoids blocking cobblestone fragments by a sieve plate gap, meanwhile, gravel on the sieve plate falls down in an accelerated mode, large cobblestone fragments are bounced, the cobblestones are thoroughly crushed and the gravel is efficiently discharged, the pendulum bob is hammered by the self-rotating mechanism through different side surfaces, the service life of the pendulum bob is prolonged, and the safety packing of the device is realized by the protection mechanism.

Description

Building engineering is with system sand device that has anti-clogging function

Technical Field

The invention relates to the technical field of constructional engineering, in particular to a sand making device with an anti-blocking function for constructional engineering.

Background

The sand making machines in the building engineering are various in types and are divided into hammer type sand making machines, vertical shaft impact type sand making machines, roller type sand making machines and the like, the hammer type sand making machines are used more frequently, the hammer type sand making machines have the characteristics of high crushing rate, simple structure, convenience in installation and maintenance and the like, and the hammer type sand making machines mainly finish the operation of crushing materials by means of impact energy.

Present hammer system sand machine is when carrying out broken system sand to the cobblestone, along with the impact of pendulum in this device, can hit some cobblestone fragments and hit to the sieve gap in, cause the device to block up, it does not hit garrulous cobblestone fragment accumulation on the sieve to have some simultaneously, influence the gravel and fall from the sieve, the accumulation of cobblestone fragment seriously causes the jam of sieve equally, when the pendulum strikes the cobblestone that gets into this device simultaneously, the pendulum is same side impact cobblestone all the time, hit it garrulously, long-time work can cause the cave in of pendulum, influence the use of pendulum.

Therefore, the sand making device with the anti-blocking function for the construction engineering is provided.

Disclosure of Invention

In order to overcome the defects that a sieve plate is easy to block and the impact surface of a pendulum bob and cobble materials is single, the invention has the technical problems that: provides a sand making device with anti-blocking function for building engineering with pendulum self-rotation hammering material and sieve plate reciprocating bouncing.

The utility model provides a building engineering is with system sand device that has anti-clogging function, which comprises a support, a housin, the feed inlet, a supporting plate, driving motor, rubbing crusher constructs, pushing mechanism and rolling mechanism, the rigid coupling has the casing on the support, the upper right portion rigid coupling of casing has the feed inlet, the left end rigid coupling of support has the backup pad, the anterior bolted connection of backup pad has driving motor, the rear portion of backup pad is equipped with control switch, be equipped with rubbing crusher in the casing, be equipped with rotation mechanism on the rubbing crusher structure, the lower part of casing is equipped with pushing mechanism, pushing mechanism has rolling mechanism.

Further, the crushing mechanism comprises a first belt wheel, a first rotating shaft, a second belt wheel, a first belt, a first fixed shaft, an n-shaped frame, a pendulum bob, an arc-shaped fixed block, an arc-shaped baffle plate and a rebound assembly, wherein the output shaft end of the driving motor is fixedly connected with the first belt wheel, the first rotating shaft is rotatably arranged in the shell, the first rotating shaft is internally provided with a blind hole, the side wall of the middle part of the first rotating shaft is uniformly provided with a plurality of concave grooves and cylindrical blind holes, the front end of the first rotating shaft is fixedly connected with the second belt wheel, the first belt wheel is connected with the second belt wheel through the first belt, the first fixed shaft is fixedly connected in each concave groove of the first rotating shaft, the n-shaped frame is rotatably arranged on each first fixed shaft, the pendulum bob is rotatably arranged on each n-shaped frame, the arc-shaped fixed block is fixedly connected at two ends of each concave groove opening of the first rotating shaft, and the arc-shaped baffle plate is slidably arranged on each concave opening of the first rotating shaft, the lower parts of the adjacent pendulum bob penetrate through the adjacent arc-shaped baffle plates, the first rotating shaft is provided with a rebounding assembly, and the crushing mechanism is used for hammering and crushing cobblestones poured into the device.

Further, the rebounding assembly comprises a protective shell, a second rotating shaft, first arc-shaped crushing plates, first springs, first sliding columns, second springs and second arc-shaped crushing plates, three protective shells are fixedly connected to the inner surface of the shell, a second rotating shaft is fixedly connected to one end of each protective shell, a first arc-shaped crushing plate is fixedly connected to the middle of each second rotating shaft, two first springs are fixedly connected between each first arc-shaped crushing plate and the shell, a first sliding column is slidably arranged in each cylindrical blind hole of each first rotating shaft, a second spring is fixedly connected between each first sliding column and each first rotating shaft, a second arc-shaped crushing plate is fixedly connected to the outer end of each two adjacent first sliding columns, and the rebounding assembly is used for bouncing cobblestones in the device and increasing the impacting times of the cobblestones and the pendulum bobs.

Further explaining, the first arc-shaped crushing plate and the second arc-shaped crushing plate are provided with triangular convex teeth on one side surface and used for crushing stones in the device.

Further, the pushing mechanism comprises a third belt wheel, a fourth rotating shaft, a fourth belt wheel, a second belt, a cam, a fixed column, a sliding frame, a third spring, a sieve plate, an n-shaped fixed frame, a sliding block, a second sliding column, a third sliding column, a fixed plate, a first tension spring and a fixed rod, the third belt wheel is fixedly connected to an output shaft of the driving motor, the third belt wheel is positioned behind the first belt wheel, the fourth rotating shaft is fixedly connected to the lower part of the shell, the fourth belt wheel is fixedly connected to the front end of the fourth rotating shaft, the third belt wheel is connected with the fourth belt wheel through the second belt, the cam is fixedly connected to the front part and the rear part of the fourth rotating shaft, the four fixed columns are fixedly connected to the inner surface of the lower part of the shell, the sliding frame is slidably arranged on the four fixed columns, the four third springs are fixedly connected between the sliding frame and the shell, the four third springs are respectively sleeved on the four fixed columns, the sieve plate is arranged on the upper part of the sliding frame, the upper part of the sieve plate is provided with triangular convex teeth, the front part and the rear part of the sliding frame are fixedly connected with n-type fixing frames, the right part of each n-type fixing frame is provided with a sliding groove, the lower part of each n-type fixing frame is provided with a through hole, two cams are respectively positioned in the two n-type fixing frames, a sliding block is arranged in the sliding groove of each n-type fixing frame in a sliding way, the left upper part of each n-type fixing frame is provided with a second sliding column in a sliding way, a right wedge block of each second sliding column is arranged, the left lower part of each n-type fixing frame is provided with a third sliding column in a sliding way, the left ends of the adjacent second sliding column and the third sliding column are fixedly connected with fixing plates, a first tension spring is fixedly connected between the adjacent fixing plates and the n-type fixing frames, the inner surface of the lower part of the shell is fixedly connected with two fixing rods, the left end surface of each fixing rod is provided with a blind hole, the two fixing rods are respectively positioned in the through holes of the two n-type fixing frames, the blind holes of the adjacent n-shaped fixing frames are matched with the third sliding column, and the pushing mechanism is used for bouncing the un-crushed cobblestones on the sieve plate to enable the un-crushed cobblestones to be in contact with the pendulum bob again.

Further, the upper surface of the sliding frame is inclined from outside to inside for moving the sand or stones in the housing toward the screen plate.

Further, the rolling mechanism comprises a fifth belt wheel, a fixed frame, a fifth rotating shaft, a sixth belt wheel, a third belt, a first straight gear, a sixth rotating shaft, a second straight gear, a rolling cylinder, a seventh rotating shaft, a third straight gear, a separating block, a V-shaped plate, a first pressing plate and a second pressing plate, wherein the fifth belt wheel is fixedly connected to the front part of the fourth rotating shaft, the fixed frame is fixedly connected to the lower part of the support, the fifth rotating shaft is rotatably arranged at the left part of the fixed frame, the sixth belt wheel is fixedly connected to the front end of the fifth rotating shaft, the fifth belt wheel is connected with the sixth belt wheel through the third belt, the first straight gear is fixedly connected to the front part of the fifth rotating shaft, seven sixth rotating shafts are rotatably arranged on the fixed frame, the second straight gear is fixedly connected to the front end of each sixth rotating shaft, rolling cylinders are fixedly connected to the middle parts of the fifth rotating shaft and the seven sixth rotating shafts, and the sixth rotating shaft at the leftmost end and the fifth rotating shaft form a group of rolling cylinder assemblies, and the second spur gear on the sixth rotating shaft at the left end is meshed with the first spur gear, then every two sixth rotating shafts form a group of rolling cylinder assemblies, two second spur gears at the front end of each group of rolling cylinder assemblies are meshed, a seventh rotating shaft is arranged between every two adjacent groups of rolling cylinder assemblies, each seventh rotating shaft is fixedly connected with the front end of the fixing frame, the front end of each seventh rotating shaft is rotatably provided with a third spur gear, each third spur gear is meshed with the adjacent second spur gear, a separating block is arranged between every two groups of rolling cylinder assemblies, three separating blocks are fixedly connected with the fixing frame, a group of V-shaped plates are rotatably arranged on the left separating block and the right separating block, each group of V-shaped plates is arranged in a front-back mode, the left and the right groups of V-shaped plates are symmetrically arranged, the outer ends of the two groups of V-shaped plates are provided with first pressing plates in a sliding mode, each first pressing plate is fixedly connected with the lower part of the sliding frame, the inner ends of the two groups of V-shaped plates are provided with second pressing plates in a sliding mode, every second clamp plate all slides on the inside wall of sliding frame, rolls the mechanism and is used for rolling the piece of the fritter cobble piece that falls on the sieve and smashes.

Further, the surface of the crushing cylinder is rough, which is used for the friction between the crushing cylinder and the small stone blocks in the device.

Further, the device also comprises an autorotation mechanism, wherein the autorotation mechanism is arranged on the first rotating shaft and comprises a fixed support, a second fixed shaft, first bevel gears, third rotating shafts, second bevel gears, third bevel gears, fourth bevel gears and fifth bevel gears, the fixed support is fixedly connected to the middle part of the rear end of the support, the second fixed shaft is fixedly connected to the upper part of the fixed support, the two first bevel gears are fixedly connected to the second fixed shaft, the third rotating shaft is rotatably arranged at the bottom of each concave groove of the first rotating shaft, one end of each third rotating shaft is fixedly connected to the second bevel gear, the adjacent second bevel gears are meshed with the first bevel gears, the other end of each third rotating shaft is fixedly connected to the third bevel gear, the fourth bevel gear is rotatably arranged on each first fixed shaft, the adjacent third bevel gears are meshed with the fourth bevel gears, the fifth bevel gears are fixedly connected to the inner ends of all the pendulums, and the adjacent fourth bevel gear is meshed with the fifth bevel gear, and the self-rotating mechanism is used for enabling the pendulum bob to rotate, so that the side wall of the pendulum bob rotates to hammer cobblestones.

Further explaining, the device also comprises a protection mechanism, the feed inlet is provided with the protection mechanism, the protection mechanism comprises an eighth rotating shaft, a first protection plate, a fourth straight gear, a chute fixing block, a rack sliding rod, a limit sliding rod, a second tension spring, a ninth rotating shaft, a second protection plate and a torsion spring, the upper right part of the feed inlet is rotatably provided with the eighth rotating shaft, the front part of the eighth rotating shaft is wound with a rope, the middle part of the eighth rotating shaft is fixedly connected with the first protection plate, the rear end of the eighth rotating shaft is fixedly connected with the fourth straight gear, the rear surface of the feed inlet is fixedly connected with the chute fixing block, the chute fixing block is internally provided with the rack sliding rod in a sliding manner, the right part of the rack sliding rod is provided with a rack, the left part of the rack sliding rod is provided with a wedge block, the rack of the rack sliding rod is meshed with the fourth straight gear, the rear wall of the feed inlet is provided with the limit sliding rod in a sliding manner, the upper part of the limit sliding rod is provided with the wedge block, and the wedge block of the limit sliding rod is matched with the wedge block of the slide rod, the rigid coupling has the second extension spring between spacing slide bar and the feed inlet, and the left part of feed inlet rotates and is equipped with two ninth pivots, all the rigid coupling has the second backplate in every ninth pivot, and every ninth pivot and the equal rigid coupling of feed inlet have the torsional spring, and two torsional springs overlap respectively in two ninth pivots, and protection machanism is when being used for the device to add the cobblestone, to operating personnel's protection.

The beneficial effects are that: the invention realizes the quick and efficient crushing of cobblestones by hammering the cobblestones by the pendulum bob in the crushing mechanism, simultaneously crushes and rebounds the cobblestones by the first arc-shaped crushing plate and the second arc-shaped crushing plate in the rebounding assembly, repeatedly rebounds the sieve plate in the pushing mechanism up and down to prevent the gap of the sieve plate from blocking the cobblestone fragments, simultaneously leads the gravels on the sieve plate to fall in an accelerated way and bounce the larger cobblestone fragments to lead the cobblestone fragments to be contacted with the crushing mechanism again for crushing, realizes the complete crushing of the cobblestones and the efficient discharge of the gravels, meshes a plurality of groups of rolling cylinders in the rolling mechanism, simultaneously adds the alternate extrusion of the first pressing plate and the second pressing plate to lead the gravels falling from the sieve plate and some cobblestone fragments to be further rolled and crushed, realizes the high precision of the gravel produced by the device, and leads the gear set of the self-rotating mechanism to be meshed to lead the pendulum bob to rotate, realize the pendulum with different side surface hammering cobblestones, the life of extension pendulum, the setting of first backplate and second backplate in the protection machanism, when making this device pack, the cobblestone lithotripsy branch of academic or vocational study can not pop out from the feed inlet, realizes the safe packing of this device.

Drawings

Fig. 1 is a schematic perspective view of a first embodiment of the present invention.

Fig. 2 is a schematic perspective view of a second embodiment of the present invention.

Fig. 3 is a partial cross-sectional view of the present invention.

Figure 4 is a first partial cross-sectional view of the shredder mechanism of the present invention.

Figure 5 is a second partial cross-sectional view of the shredder mechanism of the present invention.

Fig. 6 is a partial structural schematic diagram of the pushing mechanism of the present invention.

Fig. 7 is a first partial sectional view of the pushing mechanism of the present invention.

Fig. 8 is a second partial cross-sectional view of the pushing mechanism of the present invention.

Fig. 9 is a partial cross-sectional view of the rolling mechanism of the present invention.

Fig. 10 is a schematic view of a first partial structure of the rolling mechanism of the present invention.

Fig. 11 is a second partial structure diagram of the rolling mechanism of the present invention.

Fig. 12 is a partial structural schematic diagram of the protection mechanism of the present invention.

In the above drawings: 1. a support 101, a housing 102, a feed inlet 103, a support plate 104, a driving motor 2, a first pulley 201, a first rotating shaft 202, a second pulley 203, a first belt 204, a first fixed shaft 205, an n-shaped frame 206, a pendulum bob 207, an arc-shaped fixed block 208, an arc-shaped baffle 3, a protective housing 301, a second rotating shaft 302, a first arc-shaped crushing plate 303, a first spring 304, a first sliding column 305, a second spring 306, a second arc-shaped crushing plate 4, a fixed bracket 401, a second fixed shaft 402, a first bevel gear 403, a third rotating shaft 404, a second bevel gear 405, a third bevel gear 406, a fourth bevel gear 407, a fifth bevel gear 5, a third pulley 501, a fourth rotating shaft 502, a fourth pulley 503, a second belt 504, a cam 505, a fixed column 506, a sliding frame 507, a third spring, 508. a screen plate, 509, an n-shaped fixed frame, 510, a sliding block, 511, a second sliding column, 512, a third sliding column, 513, a fixed plate, 514, a first tension spring, 515, a fixed rod, 6, a fifth belt pulley, 601, a fixed frame, 602, a fifth rotating shaft, 603, a sixth belt pulley, 604, a third belt, 605, a first straight gear, 606, a sixth rotating shaft, 607, a second straight gear, 608, a rolling cylinder, 609, a seventh rotating shaft, 610, a third straight gear, 611, a separating block, 612, a V-shaped plate, 613, a first pressure plate, 614, a second pressure plate, 7, an eighth rotating shaft, 701, a first guard plate, 702, a fourth straight gear, 703, a fixed block of a sliding chute, 704, a rack sliding rod, 705, a limit sliding rod, 706, a second tension spring, 707, a ninth rotating shaft, 708, a second guard plate, 709, and a torsion spring.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Example 1

A sand making device with anti-blocking function for constructional engineering is shown in figure 1 and figure 2, and comprises a support 1, a shell 101, a feeding hole 102 and a support plate 103, driving motor 104, rubbing crusher constructs, pushing mechanism and rolls the mechanism, the rigid coupling has casing 101 on the support 1, the upper right portion rigid coupling of casing 101 has feed inlet 102, the left end rigid coupling of support 1 has backup pad 103, the anterior bolted connection of backup pad 103 has driving motor 104, the rear portion of backup pad 103 is equipped with control switch, be equipped with rubbing crusher constructs in the casing 101, rubbing crusher constructs and is used for knocking the cobblestone that gets into in casing 101 and smashes, the lower part of casing 101 is equipped with pushing mechanism, pushing mechanism is used for bounceing the cobblestone piece bottom casing 101, pushing mechanism has rolls the mechanism, it rolls the crushing to be used for rolling the fritter cobblestone piece that accumulates in casing 101 bottom to roll the mechanism, avoid blockking up.

The manual work is through the control switch on the backup pad 103, starts driving motor 104, and driving motor 104 drives rubbing crusher and pushing mechanism work, and pushing mechanism drives the work of rolling mechanism, then in the manual work pours the cobble into this device through feed inlet 102, makes the gravel that accords with the standard with cobble along with rubbing crusher's hammering, and the gravel drops downwards through casing 101 bottom afterwards.

As some uncrushed cobblestones are accumulated at the bottom of the shell 101, the pushing mechanism works to bounce larger cobblestones upwards, then the bounced cobblestones are hammered and crushed by the crushing mechanism, smaller retained cobblestones are crushed and crushed by the crushing mechanism, and after the cobblestones are crushed, the driving motor 104 is turned off manually through a control switch on the supporting plate 103.

Example 2

On the basis of embodiment 1, as shown in fig. 3 and 4, the pulverizing mechanism includes a first belt wheel 2, a first rotating shaft 201, a second belt wheel 202, a first belt 203, a first fixed shaft 204, an n-shaped frame 205, a pendulum 206, an arc-shaped fixed block 207, an arc-shaped baffle 208 and a rebounding assembly, the first belt wheel 2 is fixedly connected to an output shaft end of the driving motor 104, the first rotating shaft 201 is rotatably disposed in the casing 101, a blind hole is disposed inside the first rotating shaft 201, a plurality of concave grooves and cylindrical blind holes are uniformly disposed on a side wall of a middle portion of the first rotating shaft 201, the second belt wheel 202 is fixedly connected to a front end of the first rotating shaft 201, the first belt wheel 2 and the second belt wheel 202 are connected through the first belt 203, the first fixed shaft 204 is fixedly connected to each concave groove of the first rotating shaft 201, the n-shaped frame 205 is rotatably disposed on each first fixed shaft 204, the pendulum 206 is rotatably disposed on each n-shaped frame 205, pendulum 206 swings along with n type frame 205, a first time can take place to swing for avoiding pendulum 206 on this device meetting harder cobblestone, make pendulum 206 at rear carry out hammering once more to harder cobblestone, the first time card that avoids the device to meet harder cobblestone is died and is damaged the device, every spill notch both ends of first pivot 201 all the rigid coupling have arc fixed block 207, and every spill notch slip of first pivot 201 is equipped with cowl 208, cowl 208 is used for blockking the cobblestone piece that smashes, adjacent cowl 208 is penetrated to the lower part of adjacent pendulum 206, be equipped with the bounce-back subassembly on the first pivot 201.

As shown in fig. 3 and 5, the rebounding assembly includes a protective shell 3, a second rotating shaft 301, a first arc-shaped crushing plate 302, a first spring 303, a first sliding column 304, a second spring 305 and a second arc-shaped crushing plate 306, three protective shells 3 are fixedly connected to the inner surface of the casing 101, the second rotating shaft 301 is fixedly connected to one end of each protective shell 3, the first arc-shaped crushing plate 302 is fixedly connected to the middle portion of each second rotating shaft 301, two first springs 303 are fixedly connected between each first arc-shaped crushing plate 302 and the casing 101, the first sliding column 304 is slidably arranged in each cylindrical blind hole of the first rotating shaft 201, the second spring 305 is fixedly connected between each first sliding column 304 and the first rotating shaft 201, the second arc-shaped crushing plate 306 is fixedly connected to the outer end of each two adjacent first sliding columns 304, the first arc-shaped crushing plate 302 and the second arc-shaped crushing plate 306 are provided with triangular convex teeth on one side surface, used for crushing the stones in the device.

As shown in fig. 6-8, the pushing mechanism includes a third belt wheel 5, a fourth rotating shaft 501, a fourth belt wheel 502, a second belt 503, a cam 504, a fixing column 505, a sliding frame 506, a third spring 507, a screen plate 508, an n-type fixing frame 509, a slider 510, a second sliding column 511, a third sliding column 512, a fixing plate 513, a first tension spring 514 and a fixing rod 515, the third belt wheel 5 is fixedly connected to an output shaft of the driving motor 104, the third belt wheel 5 is located behind the first belt wheel 2, the lower portion of the housing 101 is fixedly connected to the fourth rotating shaft 501, the front end of the fourth rotating shaft 501 is fixedly connected to the fourth belt wheel 502, the third belt wheel 5 and the fourth belt wheel 502 are connected by the second belt, the cam 504 is fixedly connected to both the front and rear portions of the fourth rotating shaft 501, the four fixing columns 505 are fixedly connected to the inner surface of the lower portion of the housing 101, the sliding frame 506 is slidably arranged on the four fixing columns 505, the upper surface of the sliding frame 506 is inclined from outside to inside, the sand or stone used in the shell 101 moves towards the sieve plate 508, four third springs 507 are fixedly connected between the sliding frame 506 and the shell 101, the four third springs 507 are respectively sleeved on four fixing columns 505, the upper part of the sliding frame 506 is fixedly connected with the sieve plate 508, the upper part of the sieve plate 508 is provided with triangular convex teeth for crushing cobbles impacting on the sieve plate 508, the cobble fragments are prevented from being clamped in gaps of the sieve plate 508, n-shaped fixing frames 509 are fixedly connected to the front part and the rear part of the sliding frame 506, the right part of each n-shaped fixing frame 509 is provided with a sliding groove, the lower part of each n-shaped fixing frame 509 is provided with a through hole, two cams 504 are respectively positioned in the two n-shaped fixing frames 509, a sliding block 510 is slidably arranged in the sliding groove of each n-shaped fixing frame 509, a second sliding column 511 is slidably arranged at the left upper part of each n-shaped fixing frame 509, and a wedge-shaped block at the right part of each second sliding column 511 is arranged, the third sliding column 512 is arranged at the left lower part of each n-shaped fixing frame 509 in a sliding manner, the fixing plate 513 is fixedly connected to the left ends of the adjacent second sliding column 511 and the third sliding column 512, the first tension spring 514 is fixedly connected between the adjacent fixing plate 513 and the n-shaped fixing frame 509, the two fixing rods 515 are fixedly connected to the inner surface of the lower part of the shell 101, a blind hole is formed in the left end face of each fixing rod 515, the two fixing rods 515 are respectively located in the through holes of the two n-shaped fixing frames 509, and the blind holes of the adjacent n-shaped fixing frames 509 are matched with the third sliding column 512 to achieve the action of pause and bounce of the pushing mechanism, bounce unfulfilled cobblestones on the sieve plate 508, and enable the unfulfilled cobblestones to be contacted with the crushing mechanism again.

As shown in fig. 9-11, the rolling mechanism includes a fifth pulley 6, a fixed frame 601, a fifth rotating shaft 602, a sixth pulley 603, a third belt 604, a first straight gear 605, a sixth rotating shaft 606, a second straight gear 607, a rolling cylinder 608, a seventh rotating shaft 609, a third straight gear 610, a separating block 611, a V-shaped plate 612, a first pressing plate 613 and a second pressing plate 614, the fifth pulley 6 is fixedly connected to the front portion of the fourth rotating shaft 501, the fixed frame 601 is fixedly connected to the lower portion of the support base 1, the fifth rotating shaft 602 is rotatably provided at the left portion of the fixed frame 601, the sixth pulley 603 is fixedly connected to the front end of the fifth rotating shaft 602, the fifth pulley 6 and the sixth pulley 603 are connected by the third belt 604, the first straight gear 605 is fixedly connected to the front portion of the fifth rotating shaft 602, seven sixth rotating shafts 606 are rotatably provided on the fixed frame 601, the second straight gear 607 is fixedly connected to the front end of each sixth rotating shaft 606, the rolling cylinders 608 are fixedly connected to the middle portions of the fifth rotating shaft 602 and the sixth rotating shaft 606, the surface of a rolling cylinder 608 is rough and is used for friction force between the rolling cylinder 608 and small stones in the device, a group of rolling cylinder assemblies is formed by a sixth rotating shaft 606 at the leftmost end and a fifth rotating shaft 602, a second spur gear 607 on the sixth rotating shaft 606 at the left end is meshed with a first spur gear 605, then every two sixth rotating shafts 606 form a group of rolling cylinder assemblies, two second spur gears 607 at the front end of each group of rolling cylinder assemblies are meshed, a seventh rotating shaft 609 is arranged between every two adjacent groups of rolling cylinder assemblies, each seventh rotating shaft 609 is fixedly connected at the front end of a fixed frame 601, a third spur gear 610 is rotatably connected at the front end of each seventh rotating shaft 609, each third spur gear 610 is meshed with two adjacent second spur gears 607, a separating block 611 is arranged between each two groups of rolling cylinder assemblies, three separating blocks 611 are fixedly connected on the fixed frame 601, a group of V612 is rotatably arranged on each of a left separating block 611 and a right separating block 611, each group of V-shaped plates 612 is arranged in a front-back mode, the left group of V-shaped plates 612 and the right group of V-shaped plates 612 are symmetrically arranged, first pressing plates 613 are arranged at the outer ends of the two groups of V-shaped plates 612 in a sliding mode, each first pressing plate 613 is fixedly connected with the lower portion of the sliding frame 506, second pressing plates 614 are arranged at the inner ends of the two groups of V-shaped plates 612 in a sliding mode, each second pressing plate 614 slides on the inner side wall of the sliding frame 506, and the first pressing plates 613 and the second pressing plates 614 alternately extrude to roll and crush small cobble fragments on the rolling cylinder 608.

The driving motor 104 is started, the driving motor 104 drives the first belt wheel 2 to rotate clockwise, the first belt wheel 2 drives the first rotating shaft 201 to rotate clockwise through the first belt 203 and the second belt wheel 202, the first rotating shaft 201 rotates clockwise through the first fixed shaft 204 and the n-shaped frame 205, the pendulum 206 is driven to rotate clockwise, along with manual operation, the cobbles are poured into the shell 101 from the feeding hole 102, the pendulum 206 rotates clockwise to knock the cobbles entering the shell 101, the pendulum 206 hammers and crushes the cobbles and gives certain kinetic energy to cobble fragments, the hammered cobble fragments are impacted to the inner wall of the shell 101 by the kinetic energy, the cobble fragments impact the first arc-shaped crushing plate 302 and are crushed by the triangular convex teeth on the surface of the first arc-shaped crushing plate 302, meanwhile, the first arc-shaped crushing plate 302 is pressed, the first spring 303 is compressed, and then under the action of the first spring 303, the first arc-shaped crushing plate 302 rebounds the further crushed cobbles toward the first rotating shaft 201.

The rebounded cobble fragments continue to be hammered by the pendulum 206 or impact on the second arc-shaped crushing plate 306, the rebounded cobble fragments are cracked by the triangular convex teeth on the surface of the second arc-shaped crushing plate 306, meanwhile, the second arc-shaped crushing plate 306 is pressed and compresses the second spring 305, then, under the action of the second spring 305, the cracked cobble fragments are impacted on the inner wall of the shell 101 by the second arc-shaped crushing plate 306, then, the cobble fragments are repeatedly hammered and crushed to form gravel particles according to the actions, finally, the formed gravel particles are gathered on the sieve plate 508 and fall downwards, and meanwhile, the sieve plate 508 bounces upwards the cobble fragments which disappear the impact force.

When the driving motor 104 is started, the driving motor 104 drives the third belt wheel 5 to rotate clockwise, the third belt wheel 5 drives the fourth rotating shaft 501 to rotate clockwise through the second belt 503 and the fourth belt wheel 502, the fourth rotating shaft 501 rotates clockwise to drive the cam 504 to rotate clockwise, the cam 504 presses the n-type fixing frame 509 to move downwards along with the clockwise rotation of the cam 504, the n-type fixing frame 509 drives the sliding frame 506, the screen plate 508, the sliding block 510, the second sliding column 511, the third sliding column 512, the fixing plate 513 and the first tension spring 514 to move downwards, the sliding frame 506 moves downwards to compress the third spring 507, when the n-type fixing frame 509 moves downwards to the lowest end, the blind hole on the fixing rod 515 is opposite to the third sliding column 512, at this time, the sliding block 510 is not pressed by the cam 504, then under the action of the first tension spring 514, the second sliding column 511, the third sliding column 512 and the fixing plate 513 move rightwards, the third sliding column 512 is extended into the blind hole on the fixed rod 515, and the sliding frame 506, the screen plate 508, the sliding block 510, the second sliding column 511, the third sliding column 512, the fixed plate 513 and the first tension spring 514 are not moved.

As the cam 504 continues to rotate clockwise, the cam 504 presses the sliding block 510 to move upwards, the sliding block 510 moves upwards to press the second sliding column 511 to move leftwards, the second sliding column 511 moves leftwards and drives the third sliding column 512 to move leftwards through the fixing plate 513, so that the third sliding column 512 is withdrawn from the blind hole in the fixing rod 515, then under the action of the third spring 507, the sliding frame 506 drives the screen plate 508 to bounce upwards to bounce the cobblestone fragments on the screen plate 508, the rotating pendulum bob 206 continues to hit the cobblestone fragments, and finally all the cobblestone fragments are crushed into gravel, while the sliding frame 506 drives the screen plate 508 to bounce upwards, the gravel accumulated on the screen plate 508 is shaken, the falling of the gravel on the screen plate 508 is accelerated, and meanwhile, some small cobblestone fragments fall together.

While the fourth rotating shaft 501 rotates clockwise, the fourth rotating shaft 501 drives the fifth rotating shaft 602 to rotate clockwise through the fifth belt pulley 6, the third belt 604 and the sixth belt pulley 603, and because the first spur gear 605, the second spur gear 607 and the third spur gear 610 between the meshing assemblies mesh from left to right in sequence, the two rolling cylinders 608 between each group of meshing assemblies rotate relatively, and simultaneously as the sliding frame 506 moves downwards, the sliding frame 506 drives the first pressing plate 613 to move downwards to press gravel and small cobble fragments on the two adjacent rolling cylinders 608, while the first pressing plate 613 moves downwards and drives the second pressing plate 614 to move upwards through the V-shaped plate 612, and then the sliding frame 506 drives the first pressing plate 613 to move upwards, so that the first pressing plate 613 drives the second pressing plate 614 to move downwards through the V-shaped plate 612, and the second pressing plate 614 moves downwards to press gravel and small cobble fragments on the two adjacent rolling cylinders 608, the grinding cylinder 608 is further used for grinding and crushing gravel and small pebble fragments falling from the sieve plate 508, the first pressing plate 613 and the second pressing plate 614 are alternately extruded along with the up-and-down reciprocating motion of the sliding frame 506, finally, the ground gravel is discharged, the gravel discharged from the device meets the standard, and after the cobblestones are completely ground, the driving motor 104 is manually turned off through a control switch on the supporting plate 103.

Example 3

On the basis of embodiment 2, as shown in fig. 4, the present invention further comprises a rotation mechanism, the first rotating shaft 201 is provided with the rotation mechanism, the rotation mechanism comprises a fixed support 4, a second fixed shaft 401, a first bevel gear 402, a third rotating shaft 403, a second bevel gear 404, a third bevel gear 405, a fourth bevel gear 406 and a fifth bevel gear 407, the fixed support 4 is fixedly connected to the middle portion of the rear end of the support 1, the second fixed shaft 401 is fixedly connected to the upper portion of the fixed support 4, two first bevel gears 402 are fixedly connected to the second fixed shaft 401, the third rotating shaft 403 is rotatably provided at the bottom portion of each concave groove of the first rotating shaft 201, one end of each third rotating shaft 403 is fixedly connected to a second bevel gear 404, the adjacent second bevel gears 404 are engaged with the first bevel gears 402, the other end of each third rotating shaft 403 is fixedly connected to a third bevel gear 405, each first fixed shaft 204 is rotatably provided with a fourth bevel gear 406, the adjacent third bevel gears 405 and the adjacent fourth bevel gears 406 are meshed, the fifth bevel gears 407 are fixedly connected to the inner ends of all the pendulums 206, the adjacent fourth bevel gears 406 and the fifth bevel gears 407 are meshed, and the self-rotation mechanism is used for the self-rotation of the pendulums 206 when the device works, so that the side surfaces of the pendulums 206 rotate to hammer cobblestones, the cobblestones are prevented from being hammered at the same position, and the service life of the pendulums 206 is prolonged.

As shown in fig. 1, 2 and 12, the feeding port 102 further includes a protection mechanism, the protection mechanism includes an eighth rotating shaft 7, a first protection plate 701, a fourth spur gear 702, a chute fixing block 703, a rack slide bar 704, a limit slide bar 705, a second tension spring 706, a ninth rotating shaft 707, a second protection plate 708 and a torsion spring 709, the eighth rotating shaft 7 is rotatably disposed at the upper right portion of the feeding port 102, a rope is wound around the front portion of the eighth rotating shaft 7, the first protection plate 701 is fixedly connected to the middle portion of the eighth rotating shaft 7, the fourth spur gear 702 is fixedly connected to the rear end of the eighth rotating shaft 7, the chute fixing block 703 is fixedly connected to the rear surface of the feeding port 102, the rack slide bar 704 is slidably disposed in the chute fixing block, the right portion of the rack slide bar 704 is disposed in a rack arrangement, the left portion of the rack slide bar 704 is disposed in a wedge arrangement, the rack of the rack slide bar 704 is engaged with the fourth spur gear 702, the limit slide bar 705 is slidably disposed on the rear wall of the feeding port 102, the upper portion of the limiting slide rod 705 is provided with a wedge-shaped block, the wedge-shaped block of the limiting slide rod 705 is matched with the wedge-shaped block of the rack slide rod 704, a second tension spring 706 is fixedly connected between the limiting slide rod 705 and the feed inlet 102, the left portion of the feed inlet 102 is rotatably provided with two ninth rotating shafts 707, each ninth rotating shaft 707 is fixedly connected with a second guard plate 708, each ninth rotating shaft 707 and the feed inlet 102 are fixedly connected with a torsion spring 709, the two torsion springs 709 are respectively sleeved on the two ninth rotating shafts 707, and the first guard plate 701 and the second guard plate 708 are alternately opened and closed, so that cobbles hit by the crushing mechanism in the shell 101 are prevented from flying out of the feed inlet 102 and injuring operators.

When the crushing mechanism works, as the first rotating shaft 201 rotates clockwise, the fixed support 4, the second fixed shaft 401 and the first bevel gear 402 are kept static, and the second bevel gear 404 is meshed with the first bevel gear 402, the first rotating shaft 201 rotates clockwise to drive the third rotating shaft 403 to rotate anticlockwise through the second bevel gear 404 and the first bevel gear 402, the third rotating shaft 403 drives the fourth bevel gear 406 to rotate clockwise through the third bevel gear 405, the fourth bevel gear 406 drives the pendulum 206 to rotate anticlockwise through the fifth bevel gear 407, so that the pendulum 206 can hammer cobblestones with different side surfaces, the cobblestones at the same position of the pendulum 206 can be prevented from being hammered for a long time, and the service life of the pendulum 206 can be prolonged.

After the device is manually started, in the process of filling, a rope at the front part of an eighth rotating shaft 7 is manually pulled, the eighth rotating shaft 7 drives a first protection plate 701 to rotate anticlockwise and open, meanwhile, the eighth rotating shaft 7 rotates anticlockwise and drives a rack slide bar 704 to slide right upwards through a fourth straight gear 702, the rack slide bar 704 slides, so that a wedge-shaped block at the left part of the rack slide bar 704 is free from the limitation of a limit slide bar 705, then, under the action of a second tension spring 706, the limit slide bar 705 slides forwards to clamp a second protection plate 708, then, cobblestones are manually added into a feed inlet 102, after a certain amount of cobblestones are added, the rope at the front part of the eighth rotating shaft 7 is manually loosened, then, under the action of gravity of a first protection plate 701, the first protection plate 701 drives a fourth straight gear 702 to rotate clockwise through the eighth rotating shaft 7, the fourth straight gear 702 rotates clockwise to drive the rack slide bar 704 to slide left downwards, so that the wedge-shaped block at the left end of the rack 704 extrudes the wedge-shaped block at the right end of the limit slide bar 705, the limiting sliding rod 705 slides forwards to release the limitation on the second protection plate 708, the second protection plate 708 rotates to open under the action of the gravity of the cobblestones to pour the cobblestones into the shell 101, after the second protection plate 708 is completely poured, the initial state is recovered by the torsion spring 709, then the cobblestones are added in a reciprocating mode according to the operation, and the cobblestones in the device are prevented from being ejected out and injuring operators due to the alternate opening and closing of the first protection plate 701 and the second protection plate 708.

While the disclosure has been described with respect to a limited number of embodiments, those skilled in the art, having benefit of this disclosure, will appreciate that various other embodiments can be devised which do not depart from the scope of the invention as disclosed herein. Accordingly, the scope of the invention should be limited only by the attached claims.

Claims

1. The utility model provides a building engineering is with system sand device that has anti-blocking function, including support (1), casing (101), feed inlet (102), backup pad (103) and driving motor (104), a serial communication port, still including rubbing crusher structure, pushing mechanism and rolling mechanism, the rigid coupling has casing (101) on support (1), the upper right portion rigid coupling of casing (101) has feed inlet (102), the left end rigid coupling of support (1) has backup pad (103), the anterior bolted connection of backup pad (103) has driving motor (104), the rear portion of backup pad (103) is equipped with control switch, be equipped with rubbing crusher structure in casing (101), the lower part of casing (101) is equipped with pushing mechanism, pushing mechanism has rolling mechanism.

2. The sand making device with the anti-blocking function for the building engineering according to claim 1, characterized in that the crushing mechanism comprises a first belt wheel (2), a first rotating shaft (201), a second belt wheel (202), a first belt (203), a first fixed shaft (204), an n-shaped frame (205), a pendulum bob (206), an arc-shaped fixed block (207), an arc-shaped baffle (208) and a rebounding component, the first belt wheel (2) is fixedly connected with an output shaft of the driving motor (104), the first rotating shaft (201) is rotatably arranged in the shell (101), a blind hole is arranged in the first rotating shaft (201), a plurality of concave grooves and cylindrical blind holes are uniformly arranged on the side wall of the middle part of the first rotating shaft (201), the second belt wheel (202) is fixedly connected with the front end of the first rotating shaft (201), and the first belt wheel (2) and the second belt wheel (202) are connected through the first belt (203), all the rigid coupling has first fixed axle (204) in every concave groove of first pivot (201), all rotate on every first fixed axle (204) and be equipped with n type frame (205), all rotate on every n type frame (205) and be equipped with pendulum (206), every concave notch both ends of first pivot (201) all the rigid coupling have arc fixed block (207), and every concave notch slip of first pivot (201) is equipped with cowl (208), the lower part of adjacent pendulum (206) pierces through adjacent cowl (208), be equipped with the subassembly that rebounds on first pivot (201).

3. The sand making device with the anti-blocking function for the building engineering according to claim 2, wherein the rebounding assembly comprises a protective shell (3), a second rotating shaft (301), first arc-shaped crushing plates (302), first springs (303), first sliding columns (304), second springs (305) and second arc-shaped crushing plates (306), three protective shells (3) are fixedly connected to the inner surface of the shell (101), the second rotating shaft (301) is fixedly connected to one end of each protective shell (3), the first arc-shaped crushing plate (302) is fixedly connected to the middle portion of each second rotating shaft (301), two first springs (303) are fixedly connected between each first arc-shaped crushing plate (302) and the shell (101), first sliding columns (304) are slidably arranged in each cylindrical blind hole of the first rotating shaft (201), and the second springs (305) are fixedly connected between each first sliding column (304) and the first rotating shaft (201), the outer ends of every two adjacent first sliding columns (304) are fixedly connected with second arc-shaped crushing plates (306).

4. A sand making device with anti-clogging function for construction engineering according to claim 3, wherein the first arc-shaped crushing plate (302) and the second arc-shaped crushing plate (306) are provided with triangular convex teeth on one side surface.

5. The sand making device with the anti-clogging function for the construction engineering according to claim 2, characterized in that the pushing mechanism comprises a third belt wheel (5), a fourth rotating shaft (501), a fourth belt wheel (502), a second belt (503), a cam (504), a fixed column (505), a sliding frame (506), a third spring (507), a sieve plate (508), an n-shaped fixed frame (509), a sliding block (510), a second sliding column (511), a third sliding column (512), a fixed plate (513), a first tension spring (514) and a fixed rod (515), the third belt wheel (5) is fixedly connected to an output shaft of the driving motor (104), the third belt wheel (5) is located behind the first belt wheel (2), the fourth rotating shaft (501) is fixedly connected to the lower portion of the housing (101), the fourth belt wheel (502) is fixedly connected to the front end of the fourth rotating shaft (501), and the third belt wheel (5) and the fourth belt wheel (502) are connected through the second belt (503), the front part and the rear part of a fourth rotating shaft (501) are fixedly connected with cams (504), the inner surface of the lower part of a shell (101) is fixedly connected with four fixed columns (505), the four fixed columns (505) are provided with sliding frames (506) in a sliding manner, four third springs (507) are fixedly connected between the sliding frames (506) and the shell (101), the four third springs (507) are respectively sleeved on the four fixed columns (505), the upper part of the sliding frame (506) is fixedly connected with a screen plate (508), the upper part of the screen plate (508) is provided with triangular convex teeth, the front part and the rear part of the sliding frame (506) are respectively fixedly connected with n-type fixing frames (509), the right part of each n-type fixing frame (509) is provided with a sliding groove, the lower part of each n-type fixing frame (509) is provided with a through hole, the two cams (504) are respectively positioned in the two n-type fixing frames (509), a sliding block (510) is arranged in the sliding groove of each n-type fixing frame (509) in a sliding manner, the left upper portion of every n type mount (509) all slides and is equipped with second slip post (511), the right part wedge block setting of every second slip post (511), the left lower part of every n type mount (509) all slides this has third slip post (512), the left end rigid coupling of adjacent second slip post (511) and third slip post (512) has fixed plate (513), the rigid coupling has first extension spring (514) between adjacent fixed plate (513) and n type mount (509), the rigid coupling has two dead lever (515) on the lower part internal surface of casing (101), the blind hole has all been seted up on the left end face of every dead lever (515), two dead lever (515) are located the through-hole of two n type mounts (509) respectively, the blind hole and the cooperation of third slip post (512) of adjacent n type mount (509).

6. The sand making device with anti-clogging function for construction engineering according to claim 5, wherein the upper surface of the sliding frame (506) is inclined from outside to inside.

7. The sand making device with the anti-clogging function for the constructional engineering according to claim 5, characterized in that the rolling mechanism comprises a fifth belt wheel (6), a fixing frame (601), a fifth rotating shaft (602), a sixth belt wheel (603), a third belt (604), a first straight gear (605), a sixth rotating shaft (606), a second straight gear (607), a rolling cylinder (608), a seventh rotating shaft (609), a third straight gear (610), a separating block (611), a V-shaped plate (612), a first pressing plate (613) and a second pressing plate (614), the fifth belt wheel (6) is fixedly connected to the front part of the fourth rotating shaft (501), the fixing frame (601) is fixedly connected to the lower part of the support (1), the fifth rotating shaft (602) is rotatably arranged at the left part of the fixing frame (601), the sixth belt wheel (603) is fixedly connected to the front end of the fifth rotating shaft (602), and the fifth belt wheel (6) and the sixth belt wheel (603) are connected through the third belt (604), a first straight gear (605) is fixedly connected to the front part of the fifth rotating shaft (602), seven sixth rotating shafts (606) are rotatably arranged on the fixing frame (601), a second straight gear (607) is fixedly connected to the front end of each sixth rotating shaft (606), rolling cylinders (608) are fixedly connected to the middle parts of the fifth rotating shaft (602) and the seven sixth rotating shafts (606), the leftmost sixth rotating shaft (606) and the fifth rotating shaft (602) form a group of rolling cylindrical assemblies, the second straight gear (607) on the sixth rotating shaft (606) at the left end is meshed with the first straight gear (605), every two sixth rotating shafts (606) are a group of rolling cylindrical assemblies, two second straight gears (607) at the front end of each group of rolling cylindrical assemblies are meshed, a seventh rotating shaft (609) is arranged between every two adjacent groups of rolling cylindrical assemblies, and each seventh rotating shaft (609) is fixedly connected to the front end of the fixing frame (601), the front end of each seventh rotating shaft (609) is rotatably provided with a third straight gear (610), each third straight gear (610) is meshed with an adjacent second straight gear (607), a separating block (611) is arranged between every two groups of rolling cylinder assemblies, the three separating blocks (611) are fixedly connected to a fixing frame (601), a group of V-shaped plates (612) are rotatably arranged on the left separating block and the right separating block (611), each group of V-shaped plates (612) is arranged in a front-back mode, the left group of V-shaped plates and the right group of V-shaped plates (612) are symmetrically arranged, the outer ends of the two groups of V-shaped plates (612) are slidably provided with first pressing plates (613), each first pressing plate (613) is fixedly connected with the lower portion of the sliding frame (506), the inner ends of the two groups of V-shaped plates (612) are slidably provided with second pressing plates (614), and each second pressing plate (614) slides on the inner side wall of the sliding frame (506).

8. A sand making device with anti-clogging function for construction engineering according to claim 7, wherein the surface of the crushing cylinder (608) is rough.

9. The sand making device with the anti-blocking function for the building engineering according to claim 1, characterized by further comprising a rotation mechanism, wherein the rotation mechanism is arranged on the first rotating shaft (201), the rotation mechanism comprises a fixed support (4), a second fixed shaft (401), a first bevel gear (402), a third rotating shaft (403), a second bevel gear (404), a third bevel gear (405), a fourth bevel gear (406) and a fifth bevel gear (407), the fixed support (4) is fixedly connected to the middle part of the rear end of the support (1), the second fixed shaft (401) is fixedly connected to the upper part of the fixed support (4), the two first bevel gears (402) are fixedly connected to the second fixed shaft (401), the third rotating shaft (403) is rotatably arranged at the bottom of each concave groove of the first rotating shaft (201), and the second bevel gear (404) is fixedly connected to one end of each third rotating shaft (403), the adjacent second bevel gears (404) are meshed with the first bevel gears (402), the other end of each third rotating shaft (403) is fixedly connected with a third bevel gear (405), each first fixed shaft (204) is rotatably provided with a fourth bevel gear (406), the adjacent third bevel gears (405) are meshed with the fourth bevel gears (406), the inner ends of all the pendulums (206) are fixedly connected with fifth bevel gears (407), and the adjacent fourth bevel gears (406) are meshed with the fifth bevel gears (407).

10. The sand making device with the anti-clogging function for the building engineering according to claim 9, characterized by further comprising a protection mechanism, wherein the feed port (102) is provided with the protection mechanism, the protection mechanism comprises an eighth rotating shaft (7), a first guard plate (701), a fourth spur gear (702), a chute fixing block (703), a rack sliding rod (704), a limit sliding rod (705), a second tension spring (706), a ninth rotating shaft (707), a second guard plate (708) and a torsion spring (709), the upper right portion of the feed port (102) is rotatably provided with the eighth rotating shaft (7), the front portion of the eighth rotating shaft (7) is wound with a rope, the middle portion of the eighth rotating shaft (7) is fixedly connected with the first guard plate (701), the rear end of the eighth rotating shaft (7) is fixedly connected with the fourth spur gear (702), the chute fixing block (703) is fixedly connected on the rear surface of the feed port (102), the chute fixing block (703) is internally provided with a rack sliding rod (704), the right part of the rack sliding rod (704) is provided with a rack, the left part of the rack sliding rod (704) is provided with a wedge-shaped block, the rack of the rack sliding rod (704) is meshed with a fourth straight gear (702), a limiting sliding rod (705) is arranged on the rear wall of the feed port (102) in a sliding mode, the upper part of the limiting sliding rod (705) is provided with the wedge-shaped block, the wedge-shaped block of the limiting sliding rod (705) is matched with the wedge-shaped block of the rack sliding rod (704), a second tension spring (706) is fixedly connected between the limiting sliding rod (705) and the feed port (102), the left part of the feed port (102) is rotatably provided with two ninth rotating shafts (707), each ninth rotating shaft (707) is fixedly provided with a second protection plate (708), each ninth rotating shaft (707) and each feed port (102) are fixedly provided with a torsion spring (709), and the two torsion springs (709) are respectively sleeved on the two ninth rotating shafts (707).