CN215853523U - Tooth row feeding mechanism - Google Patents

Abstract

The utility model belongs to the technical field of material loading auxiliary assembly's technique and specifically relates to a tooth row feed mechanism is related to, its technical scheme main points are: give the mechanism including the rod, the rod gives the mechanism and is used for carrying the rod to processing equipment department, still includes frame, feed mechanism and transport guide rail, feed mechanism with transport guide rail all set up in the frame, feed mechanism includes drive assembly, drive assembly and tooth row's subassembly, drive assembly is used for the drive the motion of tooth row's subassembly, drive assembly is used for with the power transmission that drive assembly produced extremely tooth row's subassembly department, tooth row's subassembly is used for carrying the rod into transport guide rail and control get into the quantity of the rod of transport guide rail. This application has the effect that the quantity of the control feeding rod at every turn that makes feed mechanism can be accurate.

Description

Tooth row feeding mechanism

Technical Field

The application relates to the technical field of auxiliary feeding equipment, in particular to a tooth row feeding mechanism.

Background

In actual production activities, the machining and manufacturing of parts require the use of bars. Usually, the bar material is pre-cut to a proper length, and then the bar material which is cut orderly is conveyed to a numerical control machining center or a cold header and other machining equipment through a feeding mechanism, and finally the bar material is machined and formed in the numerical control machining center or the cold header and other machining equipment.

In the related technology, the feeding mechanism comprises a rack, a bar placing frame and a bar feeding mechanism, wherein the bar placing frame and the bar feeding mechanism are arranged on the rack, and are matched to work; the bar feeding mechanism is arranged on one side of the bar placing frame in a reciprocating mode and used for feeding bars to the processing equipment. When the bar is required to be conveyed to the processing equipment, the bar is placed on the bar placing frame, the bar slides down along the inclined plane of the bar placing frame under the action of gravity, the feeding of the bar can be controlled by controlling the blocking columns, and then the bar is conveyed to the processing equipment by the bar conveying mechanism.

For the related art in the foregoing, the inventor thinks that the feeding action of the feeding mechanism is driven by the gravity of the bars and controlled by the retaining columns, and when a plurality of bars are placed on the bar placing rack, the retaining columns are difficult to accurately control the number of the bars fed each time.

SUMMERY OF THE UTILITY MODEL

In order to make the quantity of the control feeding rod at every turn that feed mechanism can be accurate, this application provides a tooth row feed mechanism.

The application provides a tooth row feed mechanism adopts following technical scheme:

the utility model provides a tooth row feed mechanism, includes that the rod gives the mechanism, the rod gives the mechanism and is used for carrying the rod to processing equipment department, still includes frame, feed mechanism and transport guide rail, feed mechanism with transport guide rail all set up in the frame, feed mechanism includes drive assembly, drive assembly and tooth row subassembly, drive assembly is used for the drive tooth row subassembly motion, drive assembly be used for with the power transmission that drive assembly produced extremely tooth row subassembly department, tooth row subassembly is used for carrying the rod into transport guide rail and control entering the quantity of the rod of transport guide rail.

Through adopting above-mentioned technical scheme, set up feed mechanism and conveying guide rail in the frame, then utilize drive assembly to produce power, utilize drive assembly to transmit the power that drive assembly produced to tooth row subassembly department, the tooth row subassembly will be placed the quantity that the rod input conveying guide rail department on the tooth row subassembly and can control the rod that gets into conveying guide rail at every turn under drive assembly's effect, realized the quantity of accurate control material loading rod at every turn.

Preferably, the tooth row component is arranged on one side of the conveying guide rail and comprises a bearing tooth row and a feeding tooth row, oblique teeth are arranged on one side, far away from the rack, of the bearing tooth row, the bearing tooth row is fixedly connected with the rack, and the feeding tooth row is connected with the transmission component.

By adopting the technical scheme, the bars are borne on the helical teeth, and only one bar is supported between two adjacent helical teeth, so that the number of the bars entering the conveying guide rail at each time can be controlled; utilize transmission assembly to transmit the power that drive assembly produced to material loading row of teeth department to make material loading row of teeth and bearing row of teeth take place relative motion, make the rod of placing on the skewed tooth of material loading row of teeth and bearing row of teeth move to conveying guide rail department under the effect of material loading row of teeth.

Preferably, the bearing tooth row with be provided with the direction subassembly between the material loading tooth row, the direction subassembly includes guide block and draw runner, the guide block with material loading tooth row fixed connection, the draw runner with bearing tooth row fixed connection, set up on the guide block with the spout that the draw runner was slided and is connected.

Through adopting above-mentioned technical scheme, utilize the draw runner to be connected with the sliding of guide block, restriction material loading tooth row has improved the stability of sliding of material loading tooth row for the direction of sliding of bearing tooth row to improve the stability of material loading process.

Preferably, one side of the supporting tooth row, which is far away from the conveying guide rail, is fixedly connected with a baffle plate.

Through adopting above-mentioned technical scheme, utilize the baffle to stop the rod of placing on the tooth row, can reduce the probability that the rod drops from the tooth row.

Preferably, the driving assembly comprises a driving piece, a gear and a rack, the driving piece is used for driving the gear to rotate, the gear is meshed with the rack and connected with the transmission assembly, and the rack is fixedly connected with the transmission assembly.

Through adopting above-mentioned technical scheme, utilize driving piece drive gear to take place to rotate, the rotation of gear drives the rack removal of being connected with gear engagement, and the removal of rack drives transmission assembly's motion to the realization provides power to the motion of tooth row.

Preferably, the transmission assembly comprises a transmission rod and a reversing plate, one end of the transmission rod is fixedly connected with the driving assembly, the other end of the transmission rod is fixedly connected with the reversing plate, and the reversing plate is abutted to the tooth row assembly.

Through adopting above-mentioned technical scheme, drive assembly and reversing plate and transfer line fixed connection for the transfer line can be with the power transmission to the reversing plate department that drive assembly produced, and the reversing plate will drive the direction conversion of the power that assembly produced, and with power transmission for the material loading tooth row, thereby make the action that the material loading tooth row can accomplish the material loading.

Preferably, the transmission assembly further comprises a reversing piece, a rotating shaft and a cam, the rotating shaft is rotatably connected with the bearing tooth row, the cam is sleeved on the rotating shaft, the cam is rotatably connected with the feeding tooth row, and one end of the rotating shaft, which is far away from the reversing piece, is abutted against the reversing plate.

Through adopting above-mentioned technical scheme, when drive assembly drive tooth row material loading, the removal of switching-over board makes the one end of switching-over piece rise for it is rotatory to be in coaxial cam with the switching-over piece, and the rotation of cam makes the rising of material loading tooth row, thereby has realized the motion of material loading tooth row. The feeding tooth row abrasion caused by direct butting of the reversing plate and the feeding tooth row is reduced by utilizing the butting of the reversing piece and the reversing plate.

Preferably, the rack comprises a supporting platform and a supporting foot, the supporting foot comprises an upper supporting leg and a lower supporting leg, the upper supporting leg is connected with the lower supporting leg in a sliding manner, a fixing piece is arranged between the upper supporting leg and the lower supporting leg, and the fixing piece is used for controlling the relative position of the upper supporting leg and the lower supporting leg.

By adopting the technical scheme, the length of the supporting leg can be changed by controlling the relative position of the upper supporting leg and the lower supporting leg by the fixing part, so that the height of the supporting platform can be changed, and the applicability of the feeding mechanism is improved.

Preferably, the fixing part comprises a screw rod, a fixing plate and a nut, the screw rod is fixedly connected with the upper supporting leg, the fixing plate is fixedly connected with the lower supporting leg, the screw rod penetrates through the fixing plate, the nut is sleeved on the screw rod, and the nut is located on one side, close to the supporting platform, of the fixing plate.

Through adopting above-mentioned technical scheme, when needs change supporting platform's height, loosen the nut, then adjust suitable height with supporting platform, then swivel nut makes nut and fixed plate support tightly to the adjustment and the fixing of supporting platform height have been realized.

In summary, the present application includes at least one of the following beneficial technical effects:

1. the feeding mechanism and the conveying guide rail are arranged on the rack, then the driving assembly is used for generating power, the transmission assembly is used for transmitting the power generated by the driving assembly to the tooth row assembly, the tooth row assembly inputs the bars placed on the tooth row assembly to the conveying guide rail under the action of the transmission assembly and can control the number of the bars entering the conveying guide rail each time, and the number of the bars fed each time is accurately controlled;

2. the oblique teeth on the tooth rows are utilized to bear the bars on the oblique teeth, and only one bar is supported between two adjacent oblique teeth, so that the number of the bars entering the conveying guide rail each time can be controlled;

3. the driving assembly, the reversing plate and the transmission rod are fixedly connected, so that the transmission rod can transmit power generated by the driving assembly to the reversing plate, the reversing plate converts the direction of the power generated by the driving assembly and transmits the power to the feeding tooth row, and the feeding tooth row can finish feeding.

Drawings

Fig. 1 is a schematic overall structure diagram of an embodiment of the present application.

Fig. 2 is an enlarged view of a portion a in fig. 1.

Fig. 3 is a schematic structural diagram of a part of a feeding mechanism in an embodiment of the present application.

Figure 4 is a partial cross-sectional view of a loading tooth row and a supporting tooth row in an embodiment of the present application.

Fig. 5 is a schematic mechanism diagram of a drive assembly in an embodiment of the present application.

Description of reference numerals: 1. a frame; 11. a support platform; 12. a support leg; 121. an upper support leg; 122. a lower leg; 123. an anti-skid plate; 124. a fixing member; 1241. a screw rod; 1242. a fixing plate; 1243. a nut; 2. a feeding mechanism; 21. a tooth row assembly; 211. supporting the gear row; 2111. a bearing part; 2112. a tooth row portion; 2113. a notch; 212. feeding a gear row; 2121. a limiting hole; 2122. connecting holes; 2123. a hole of abdication; 213. helical teeth; 22. a transmission assembly; 221. a transmission rod; 222. a reversing plate; 223. a reversing member; 2231. a reversing lever; 2232. a reversing cylinder; 2233. fixing the bolt; 224. a rotating shaft; 225. a cam; 23. a drive assembly; 231. a drive member; 232. a gear; 233. a rack; 24. a guide assembly; 241. a guide block; 242. a slide bar; 243. a chute; 25. a stabilizer bar; 26. a guide; 261. a guide portion; 27. a baffle plate; 3. and (4) conveying the guide rail.

Detailed Description

The present application is described in further detail below with reference to figures 1-5.

The embodiment of the application discloses tooth row feed mechanism. Referring to fig. 1, a tooth row feeding mechanism includes a bar feeding mechanism, a frame 1, a feeding mechanism 2, and a conveying guide rail 3. The bar feeding mechanism is used for conveying bars to the processing equipment, and any bar feeding mechanism matched with the feeding mechanism 2 can be selected.

Referring to fig. 1 and 2, the rack 1 includes a supporting platform 11 and a plurality of supporting legs 12, the supporting platform 11 is disposed horizontally, the supporting legs 12 are disposed at the bottom of the supporting platform 11 along the vertical direction, in this embodiment, the number of the supporting legs 12 is two, and the two supporting legs 12 are disposed along the length direction of the supporting platform 11 at intervals. The foot 12 comprises an upper leg 121 and a lower leg 122. The upper supporting leg 121 is fixedly connected with the bottom of the supporting platform 11 through a bolt, the upper supporting leg 121 has a sliding space, one end of the lower supporting leg 122 is accommodated in the sliding space, the upper supporting leg 121 is connected with the lower supporting leg 122 in a sliding manner, the upper supporting leg 121 and the lower supporting leg 122 can be fixed in relative positions through bolts, a fixing part 124 for controlling the relative positions of the upper supporting leg 121 and the lower supporting leg 122 is connected between the upper supporting leg 121 and the lower supporting leg 122, the bottom of the lower supporting leg 122 is connected with an anti-skid plate 123 through a bolt, the cross section of the anti-skid plate 123 is larger than that of the lower supporting leg 122, and the stability of the rack 1 is improved.

Referring to fig. 1 and 2, the fixing member 124 includes a screw rod 1241, a fixing plate 1242 and a plurality of nuts 1243, the screw rod 1241 is disposed along the vertical direction, one end of the screw rod 1241 is fixedly connected with the upper leg 121, the fixing plate 1242 is fixedly connected to the top of the lower leg 122 along the horizontal direction, the screw rod 1241 penetrates through the fixing plate 1242, the plurality of nuts 1243 are all sleeved on the screw rod 1241 and are in threaded connection with the screw rod 1241, in this embodiment, the number of the nuts 1243 is set to two, the two nuts 1243 are respectively located at two sides of the fixing plate 1242, when the support leg 12 is adjusted to a proper length, by rotating the two nuts 1243, the two nuts 1243 are respectively abutted to two sides of the fixing plate 1242 in the vertical direction, and the length of the support leg 12 can be fixed.

Referring to fig. 1, the feeding mechanism 2 and the conveying guide rail 3 are both disposed on the supporting platform 11, the feeding mechanism 2 includes a driving assembly 23, a transmission assembly 22 and a plurality of sets of tooth row assemblies 21, the plurality of sets of tooth row assemblies 21 are all located on one side of the conveying guide rail 3, the driving assembly 23 is used for driving the tooth row assemblies 21 to move, the transmission assembly 22 is used for transmitting power generated by the driving assembly 23 to the tooth row assemblies 21, and the tooth row assemblies 21 are used for conveying bars into the conveying guide rail 3 and controlling the number of bars entering the conveying guide rail 3. The conveying guide rail 3 is arranged in a strip shape, one side of the conveying guide rail 3 is provided with a containing groove for containing a bar material along the length direction of the conveying guide rail 3, and two ends of the containing groove in the length direction penetrate through the conveying guide rail 3.

Referring to fig. 1 and 3, several sets of tooth row assemblies 21 are arranged at intervals along the length direction of the supporting platform 11, the number of tooth row assemblies 21 and the distance between two adjacent tooth row assemblies 21 can be adjusted according to the length of the bar, and in this embodiment, the number of tooth row assemblies 21 is six. Tooth row subassembly 21 includes bearing tooth row 211 and material loading tooth row 212, and bearing tooth row 211 and material loading tooth row 212 all are the slabby setting, and bearing tooth tablet and material loading tooth row 212 parallel arrangement and equal vertical setting, bearing tooth row 211 passes through bolt fixed connection with supporting platform 11. One end of the bearing tooth row 211, which is far away from the conveying guide rail 3, is connected with a baffle 27 through a bolt, and the height of the baffle 27 is higher than that of the bearing tooth row 211 and the feeding tooth row 212, so that the probability that the bar falls off from the tooth row is reduced.

Referring to fig. 3, the supporting tooth row 211 includes a supporting portion 2111 and a tooth row portion 2112, and the top portions of the tooth row portion 2112 and the feeding tooth row 212 are provided with a plurality of oblique teeth 213. The helical teeth 213 include a vertical surface and an inclined surface connected to the top of the helical teeth 213, the inclined surface is disposed along the length direction of the feeding tooth row 212, and the inclined surface is inclined downward in the direction from the flapper 27 to the conveying guide 3. The helical teeth 213 of the tooth row 2112 are staggered with the helical teeth 213 of the loading tooth row 212, so that when the loading tooth row 212 moves relative to the supporting tooth row 211, bars placed on the loading tooth row 212 and the supporting tooth row 211 can be conveyed to the conveying guide rail 3. The supporting portion 2111 is provided with a notch 2113, and the conveying guide rail 3 passes through the notches 2113 of the six sets of tooth row assemblies 21 along the length direction of the supporting platform 11 and is supported on the supporting portion 2111, so that the bars on the tooth rows fall into the accommodating grooves of the conveying guide rail 3.

Referring to fig. 3 and 4, a guide assembly 24 is arranged between the supporting tooth row 211 and the feeding tooth row 212, the guide assembly 24 includes a guide block 241 and a slide bar 242, the guide block 241 is bolted to one side of the feeding tooth row 212 close to the supporting tooth row 211, the slide bar 242 is arranged along the vertical direction, the slide bar 242 is bolted to one side of the supporting tooth row 211 close to the feeding tooth row 212, and a sliding groove 243 connected with the slide bar 242 in a sliding manner is arranged along the vertical direction on one side of the guide block 241 close to the slide bar 242. The sliding connection of the sliding strip 242 and the guide block 241 limits the sliding direction of the feeding tooth row 212 relative to the bearing tooth row 211, and improves the sliding stability of the feeding tooth row 212, so that the stability of the feeding process is improved.

Referring to fig. 3 and 4, a plurality of stabilizer bars 25 are disposed between the six sets of tooth row assemblies 21, in this embodiment, the number of stabilizer bars 25 is two, the two stabilizer bars 25 are both disposed parallel to the conveying rail 3 and located in the same horizontal plane, and the two stabilizer bars 25 are disposed at intervals along the length direction of the bearing tooth row 211. Stabilizer bar 25 runs through bearing tooth row 211 and with bearing tooth row 211 fixed connection, offer the spacing hole 2121 that supplies stabilizer bar 25 to pass on the material loading tooth row 212, spacing hole 2121 is the long circular hole that extends along vertical direction. When the feeding tooth row 212 moves in the vertical direction relative to the bearing tooth row 211, the movement direction of the feeding tooth row 212 is limited by the cooperation of the stabilizer bar 25 and the limiting hole 2121, and the stability of the tooth row assembly 21 is improved.

Referring to fig. 1 and 3, the guides 26 are provided between the adjacent two sets of tooth row assemblies 21, so in the present embodiment, five guides 26 are provided. Guide 26 is arranged parallel to loading teeth row 212, stabilizer bar 25 extends through guide 26 and snap fits guide 26, and one end of guide 26 is bolted to baffle 27. The end of the guide 26 remote from the baffle 27 is provided with a guide 261, the guide 261 facilitating the bar on the rack assembly 21 to fall into the receiving slot.

Referring to fig. 3 and 4, the driving assembly 22 includes a driving rod 221, a reversing plate 222, a reversing member 223, a rotating shaft 224 and a plurality of cams 225, the driving rod 221 is disposed along the length direction of the conveying rail 3, the driving rod 221 is slidably connected with the supporting platform 11, and the driving rod 221 is connected with the driving assembly 23. The reversing plate 222 is connected with the transmission rod 221 through bolts, the reversing plate 222 is vertically arranged, the longitudinal section of the reversing plate 222 is in a right-angled trapezoid shape, and the bevel edge side of the reversing plate 222 faces upwards. The rotating shaft 224 is parallel to the stabilizer bar 25, the rotating shaft 224 penetrates through the supporting tooth row 211 and is fixedly connected with the supporting tooth row 211, and the feeding tooth row 212 is provided with an abdicating hole 2123 for the rotating shaft 224 to pass through. The reversing piece 223 comprises a reversing rod 2231 and a reversing cylinder 2232, the reversing cylinder 2232 is connected with one end of the reversing rod 2231 through a fixing bolt 2233, the reversing cylinder 2232 rotates around the fixing bolt 2233, the outer surface of the reversing cylinder 2232 is abutted against the inclined surface side of the reversing plate 222, and one end of the reversing rod 2231, which is far away from the reversing cylinder 2232, is fixedly sleeved on the rotating shaft 224. The cam 225 is also fixedly sleeved on the rotating shaft 224, a connecting block is integrally formed on the side surface of one end of the cam 225 far away from the rotating shaft 224, and a connecting hole 2122 matched with the connecting block is formed in the feeding tooth row 212.

When the feeding tooth row 212 needs to be driven to move, the movement of the transmission rod 221 enables one end of the reversing piece 223 to be lifted, the cam 225 coaxial with the reversing piece 223 rotates, the rotation of the cam 225 enables the feeding tooth row 212 to be lifted, and therefore the movement of the feeding tooth row 212 is achieved.

Referring to fig. 5, the driving assembly 23 includes a driving member 231, a gear 232 and a rack 233, in this embodiment, the driving member 231 is a servo motor, the driving member 231 is bolted to the frame 1, an output shaft of the driving member 231 is arranged along a horizontal direction, and the gear 232 is fixedly sleeved on the output shaft of the driving member 231. The rack 233 is arranged along the length direction of the conveying guide rail 3, the rack 233 is connected with the supporting platform 11 in a sliding manner, the rack 233 is connected with the gear 232 in a meshing manner, and one end of the rack 233 is fixedly connected with the transmission rod 221. The gear 232 is driven to rotate by the driving part 231, the rack 233 meshed and connected with the gear 232 is driven to move by the rotation of the gear 232, and the driving rod 221 is driven to move by the movement of the rack 233, so that power is provided for the movement of the feeding tooth row 212.

The implementation principle of a tooth row feed mechanism of the embodiment of the application is as follows: when the bars need to be conveyed, the bars are supported on the helical teeth 213, and only one bar is supported between two adjacent helical teeth 213, so that the number of the bars entering the conveying guide rail 3 each time can be controlled; the transmission assembly 22 is used for transmitting the power generated by the driving assembly 23 to the feeding tooth row 212, as the inclined teeth 213 of the feeding tooth row 212 and the inclined teeth 213 of the bearing tooth row are arranged in a staggered manner, when the feeding tooth row 212 rises, the bar material rolls between the two inclined teeth 213 of the feeding tooth row 212 under the action of gravity, and when the feeding tooth row 212 falls, the bar material is placed on the inclined surface of the inclined teeth 213 of the bearing tooth row 211 and then rolls between the two inclined teeth 213 of the bearing tooth row 211 under the action of gravity, so that the bar material moves to the conveying guide rail 3, and the bar material can be conveyed to the conveying guide rail 3 after being repeatedly carried out for a plurality of times; only one bar is supported between two adjacent helical teeth 213, so that the number of bars entering the conveyor track 3 at a time can be controlled.

The above is a preferred embodiment of the present application, and the scope of protection of the present application is not limited by the above, so: all equivalent changes made according to the structure, shape and principle of the present application shall be covered by the protection scope of the present application.

Claims (9)

1. The utility model provides a tooth row feed mechanism, includes that the rod gives the mechanism, the rod gives the mechanism and is used for carrying the rod to processing equipment department, its characterized in that: still include frame (1), feed mechanism (2) and conveying guide rail (3), feed mechanism (2) with conveying guide rail (3) all set up in on frame (1), feed mechanism (2) include drive assembly (23), drive assembly (22) and tooth row subassembly (21), drive assembly (23) are used for the drive tooth row subassembly (21) motion, drive assembly (22) are used for with the power transmission that drive assembly (23) produced extremely tooth row subassembly (21) department, tooth row subassembly (21) are used for defeated the rod into conveying guide rail (3) and the control entering the quantity of the rod of conveying guide rail (3).

2. A tooth row loading mechanism according to claim 1, characterized in that: tooth row subassembly (21) set up in one side of conveying guide rail (3), tooth row subassembly (21) are including bearing tooth row (211) and material loading tooth row (212), bearing tooth row (211) with one side that frame (1) was kept away from in material loading tooth row (212) is provided with skewed tooth (213), bearing tooth row (211) with frame (1) fixed connection, material loading tooth row (212) with transmission component (22) are connected.

3. A tooth row loading mechanism according to claim 2, characterized in that: bearing tooth row (211) with be provided with guide assembly (24) between material loading tooth row (212), guide assembly (24) include guide block (241) and draw runner (242), guide block (241) with material loading tooth row (212) fixed connection, draw runner (242) with bearing tooth row (211) fixed connection, seted up on guide block (241) with spout (243) that draw runner (242) slided and are connected.

4. A tooth row loading mechanism according to claim 2, characterized in that: and a baffle (27) is fixedly connected to one side of the bearing tooth row (211) far away from the conveying guide rail (3).

5. A tooth row loading mechanism according to claim 1, characterized in that: the driving assembly (23) comprises a driving piece (231), a gear (232) and a rack (233), the driving piece (231) is used for driving the gear (232) to rotate, the gear (232) is meshed with the rack (233) and connected, and the rack (233) is fixedly connected with the transmission assembly (22).

6. A tooth row loading mechanism according to claim 2, characterized in that: the transmission assembly (22) comprises a transmission rod (221) and a reversing plate (222), one end of the transmission rod (221) is fixedly connected with the driving assembly (23), the other end of the transmission rod is fixedly connected with the reversing plate (222), and the reversing plate (222) is abutted to the tooth row assembly (21).

7. A tooth row feeding mechanism according to claim 6, characterized in that: the transmission assembly (22) further comprises a reversing piece (223), a rotating shaft (224) and a cam (225), the rotating shaft (224) is rotatably connected with the bearing tooth row (211), the cam (225) and the reversing piece (223) are all sleeved on the rotating shaft (224), the cam (225) is rotatably connected with the feeding tooth row (212), and one end, far away from the rotating shaft (224), of the reversing piece (223) is abutted to the reversing plate (222).

8. A tooth row loading mechanism according to claim 1, characterized in that: the machine frame (1) comprises a supporting platform (11) and a supporting foot (12), the supporting foot (12) comprises an upper supporting leg (121) and a lower supporting leg (122), the upper supporting leg (121) is connected with the lower supporting leg (122) in a sliding mode, a fixing piece (124) is arranged between the upper supporting leg (121) and the lower supporting leg (122), and the fixing piece (124) is used for controlling the relative position of the upper supporting leg (121) and the lower supporting leg (122).

9. A tooth row loading mechanism according to claim 8, characterized in that: the fixing piece (124) comprises a screw rod (1241), a fixing plate (1242) and a nut (1243), the screw rod (1241) is fixedly connected with the upper supporting leg (121), the fixing plate (1242) is fixedly connected with the lower supporting leg (122), the screw rod (1241) penetrates through the fixing plate (1242), the nut (1243) is sleeved on the screw rod (1241), and the nut (1243) is located on one side, close to the supporting platform (11), of the fixing plate (1242).

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