CN218349178U - Circulating drier is used in rice processing - Google Patents

Abstract

The application relates to a rice processing is with circulating desiccator, it includes: the drying box is provided with a feed inlet, a feed outlet, an air outlet and a hot air inlet; the buffer plates are arranged in a plurality of groups, the buffer plates in the plurality of groups are arranged in the drying box in a staggered mode, and the buffer plates are arranged in the drying box in a rotating mode; the transmission assembly comprises a fixed plate and a plurality of connecting rods; the driving assembly is connected with the fixed plate so as to drive the fixed plate to slide up and down; the pay-off subassembly, it is established on the drying cabinet and is connected with feed inlet and feed opening, passes through as the rice during the feed opening is discharged, through the pay-off subassembly carries the rice to the feed opening in, the time that this application multiplicable rice stops in the drying cabinet makes more abundant, the time of rice and hot-blast contact longer to make the dry more abundant of rice, this application can once only carry out abundant circulation drying to the rice simultaneously, can accelerate the drying efficiency of rice greatly, the practicality is strong.

Description

Circulating drier is used in rice processing

Technical Field

The application relates to the technical field of rice drying, in particular to a circulating dryer for rice processing.

Background

With the continuous progress of the constantly developing science and technology of the national economy, the rice production technology of China is continuously improved, and rice plants and contains certain moisture after being collected from the field in a mature way, so that the rice is inconvenient to store, and the rice needs to be dried by a dryer to remove the moisture and then stored.

At present, rice drying adopts the falling in-process to let in hot-blast mode to carry out rice drying usually, but the rice whereabouts is too fast like this, appears the insufficient phenomenon of rice drying very easily, so can crisscross the buffer board that sets up a plurality of slopes in some desiccators to reduce the falling speed of rice and improve the flow distance of rice, thereby increase the time of rice and hot-blast contact, in order to guarantee the drying effect of rice.

But set up the buffer board of slope in the desiccator, the rice still can be one and all right through the downward flow that lasts on a plurality of buffer boards of gravity effect, the time that leads to the rice to stop in the desiccator is shorter, still can't make rice and hot-blast abundant contact like this, rice surface drying has satisfied the requirement appears very easily, but rice inner core humidity is still very high, lead to the insufficient phenomenon of rice drying, this kind of drying method is only to carrying out disposable drying work to the rice simultaneously, when rice is dry not enough, still need carry out many times drying to the rice, can reduce the drying efficiency of rice like this, the practicality is relatively poor.

In order to solve the problems, a circulating dryer for rice processing is designed at present.

SUMMERY OF THE UTILITY MODEL

The embodiment of the application provides a circulating desiccator is used in rice processing, the time that the rice stops in the desiccator is shorter in order to solve correlation technique, cause the rice can't fully contact with hot-blast, the dry outer surface of rice has satisfied the requirement appears easily, but rice inner core humidity is still very high, lead to the insufficient phenomenon of rice drying, drying method in the correlation technique simultaneously just carries out disposable drying work to the rice, when the rice is dry not enough, still need carry out many times drying to the rice, can reduce the problem of rice drying efficiency.

In a first aspect, there is provided a circulation type drying machine for rice processing, comprising:

the drying box is provided with a feed inlet, a feed outlet, an air outlet and a hot air inlet;

the buffer plates are arranged in a plurality of groups, the buffer plates in the plurality of groups are arranged in the drying box in a staggered mode, and the buffer plates are arranged in the drying box in a rotating mode;

the transmission assembly is at least provided with one group and comprises a fixed plate and connecting rods corresponding to the buffer plates, the fixed plate is arranged in the drying box in a sliding mode, the connecting rods are rotatably arranged on the fixed plate, and one ends, close to the buffer plates, of the connecting rods are rotatably connected with the buffer plates;

the driving assembly is arranged in the drying box and connected with the fixed plate so as to drive the fixed plate to slide up and down;

and the feeding assembly is arranged on the drying box and is connected with the feeding port and the discharging port, and when the rice passes through the discharging port, the feeding assembly conveys the rice into the feeding port.

In some embodiments, a guide rail is provided in the drying box;

the fixed plate is provided with a guide groove matched with the guide rail, and the guide rail is in sliding connection with the guide groove.

In some embodiments, the drive assembly includes first motor, cam, connecting plate, a plurality of guide post, a plurality of spring and a plurality of connecting rod, and is a plurality of the connecting rod is connected with a plurality of fixed plates respectively, the connecting rod runs through the drying cabinet and rather than sliding connection, the connecting plate is connected with a plurality of connecting rods, and is a plurality of the guide post is all established on the drying cabinet, the guide post all runs through the connecting plate and rather than sliding connection, and is a plurality of the spring is established respectively on a plurality of guide post, the both ends of spring are connected with guide post and connecting plate respectively, first motor is established on the drying cabinet, the cam is established at the output of first motor and is cooperateed with the connecting plate.

In some embodiments, the feeding assembly comprises a feeding barrel, a feeding auger, a second motor, a first connecting pipe, a second connecting pipe and a discharge opening, the feeding barrel is arranged on the drying box, the feeding auger is rotatably arranged in the feeding barrel, the second motor is arranged on the feeding barrel and is connected with one end of the feeding auger, the first connecting pipe is arranged at the lower end of the feeding barrel and is connected with the discharge opening, the second connecting pipe is arranged at the upper end of the feeding barrel and is connected with the feed opening, and the discharge opening is arranged at the lower end of the feeding barrel.

In some embodiments, the buffer plates are provided with a plurality of air holes.

In some embodiments, a plurality of balls are disposed in each of the guide grooves.

In some embodiments, the connecting plate is provided with a roller which is matched with the cam.

The embodiment of the application provides a circulating desiccator is used in rice processing, because this application accessible drive assembly and drive assembly's cooperation transmission drives the continuous luffing motion of a plurality of buffer boards, make the rice from last to falling on all buffer boards in proper order down, simultaneously when all buffer boards swing once, the rice just can remove once, thereby avoid the rice to flow continuously, and this application accessible feeding assembly is continuous will be through the rice after the drying to carry again to drying cabinet in dry, therefore, the application can increase the time that the rice dwells in the drying cabinet, thereby make the rice and hot-blast contact more abundant, the time is longer, and when the buffer board does not swing, the rice will stop on the buffer board, just so can be convenient for the inside moisture diffusion of rice comes out, thereby make the rice dry more abundant, avoid appearing the dry and having satisfied the requirement of rice surface, but rice inner core humidity is still very high, lead to the dry insufficient phenomenon of rice, simultaneously this application can make the rice through the dry circulation of a lot of times, until the rice is dry to suitable requirement, just so can make the device once only carry out the rice fully dry, just need to carry out again, thereby can reduce the operation efficiency of rice workman greatly, thereby the practicality is strong, thereby the practicality of a lot of drying.

Drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings needed to be used in the description of the embodiments are briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present application, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without creative efforts.

FIG. 1 is a schematic cross-sectional view of an embodiment of the present disclosure;

FIG. 2 is a schematic three-dimensional structure provided by an embodiment of the present application;

fig. 3 is a schematic three-dimensional structure diagram of a fixing plate and a guide rail according to an embodiment of the present disclosure;

fig. 4 is a schematic three-dimensional structure diagram of a driving assembly according to an embodiment of the present application.

In the figure: 1. a drying oven; 11. a feed inlet; 12. a feed opening; 13. an air outlet; 14. a hot air inlet; 2. a buffer plate; 3. a transmission assembly; 31. a fixing plate; 32. a connecting rod; 33. a guide groove; 4. a drive assembly; 41. a first motor; 42. a cam; 43. a connecting plate; 44. a guide post; 45. a spring; 46. a connecting rod; 5. a feeding assembly; 51. a feed cylinder; 52. a feeding auger; 53. a second motor; 54. a first connecting pipe; 55. a second connecting pipe; 56. a discharge outlet; 6. a guide rail; 7. air holes are formed; 8. and a roller.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present application clearer, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are some embodiments of the present application, but not all embodiments. All other embodiments obtained by a person of ordinary skill in the art based on the embodiments in the present application without making creative efforts shall fall within the protection scope of the present application.

The embodiment of the application provides a circulating desiccator is used in rice processing, it can solve among the correlation technique the time that the rice dwells in the desiccator shorter, cause the rice can't fully contact with hot-blast, the dry satisfied requirement of rice surface appears easily, but rice inner core humidity is still very high, lead to the insufficient phenomenon of rice drying, the drying method among the correlation technique is only to carrying out disposable drying work to the rice simultaneously, when the rice is dry not enough, still need carry out many times drying to the rice, can reduce the problem of rice drying efficiency.

Referring to fig. 1 to 4, a circulating dryer for rice processing includes a drying cabinet 1, a buffer board 2, a transmission assembly 3, a driving assembly 4 and a feeding assembly 5, wherein the drying cabinet 1 is provided with a feeding port 11, a discharging port 12, an air outlet 13 and a hot air inlet 14, so that rice can be fed into the drying cabinet 1 through the feeding port 11 to freely fall down, a heat supply device is connected to the hot air inlet 14, hot air is blown into the drying cabinet 1 through the heat supply device and the hot air inlet 14, so that the rice can be dried by the hot air, and then the dried rice is discharged through the discharging port 12, and air in the drying cabinet 1 is discharged through the air outlet 13;

the drying device comprises a drying box 1, a plurality of groups of buffer plates 2, at least one group of transmission assemblies 3 and at least one group of transmission assemblies 3, wherein the buffer plates 2 are arranged in the drying box 1 in a staggered manner, the buffer plates 2 are arranged in the drying box 1 in a rotating manner, the number of the transmission assemblies 3 is preferably two, but not limited to two, the two groups of transmission assemblies 3 are respectively arranged at two sides of the buffer plates 2, each transmission assembly 3 comprises a fixed plate 31 and connecting rods 32 corresponding to the buffer plates 2, the fixed plate 31 is arranged in the drying box 1 in a sliding manner, the connecting rods 32 are arranged on the fixed plate 31 in a rotating manner, one ends, close to the buffer plates 2, of the connecting rods 32 are connected with the buffer plates 2 in a rotating manner, and the driving assemblies 4 are arranged in the drying box 1 and connected with the fixed plate 31 so as to drive the fixed plates 31 to slide up and down;

in the implementation process, the fixing plate 31 can be continuously driven by the driving assembly 4 to slide up and down, so that the fixing plate 31 can drive the buffer plates 2 to continuously swing up and down through the connecting rods 32 in the sliding process, so that the rice entering the drying oven 1 can fall on the uppermost buffer plate 2 firstly, then when the buffer plates 2 swing once, the rice on the buffer plates 2 can move downwards for a certain distance, when the buffer plates 2 swing for many times, the rice on the uppermost buffer plate 2 can fall on the next buffer plate 2, so that the rice can sequentially fall on all the buffer plates 2 from top to bottom, so that when all the buffer plates 2 swing once, the rice can move once, the continuous flow of the rice can be avoided, the retention time of the rice in the drying oven 1 can be prolonged, the contact between the rice and hot air can be more sufficient and longer, and meanwhile, when the buffer plates 2 do not swing, the rice can stay on the buffer plates 2, so that the moisture in the rice can be conveniently diffused out, the drying of the rice is more sufficient, the drying of the rice can be avoided, the outer surface of the rice is dried, but the inner core is still insufficient, and the moisture of the rice is still high humidity of the rice can be caused;

meanwhile, the rice moves once when the buffer plate 2 swings once, so that the higher the swinging frequency of the buffer plate 2 is, the faster the moving speed of the rice is, and the shorter the staying time of the rice in the drying oven 1 is, on the contrary, the lower the swinging frequency of the buffer plate 2 is, the slower the moving speed of the rice is, and the longer the staying time of the rice in the drying oven 1 is, so that the frequency of driving the fixing plate 31 to move up and down by adjusting the driving component 4 in the using process can be used for adjusting the staying time length of the rice in the drying oven 1, the applicability of the device is enhanced, and the use is facilitated;

the utility model discloses a rice drying device, including drying box 1, feed assembly 5, feed opening 12, feed assembly 5 is connected on drying box 1 and with feed opening 11 and feed opening 12, when the rice passes through when the discharge of feed opening 12, through feed assembly 5 carries the rice to the feed opening 11 in, will enter into feed assembly 5 through feed opening 12 after once drying like this, then just can carry the rice to the feed opening 11 in through feed assembly 5, thereby make the rice enter into drying box 1 again and dry, the continuous whereabouts of rice like this, upwards carry, just can make the rice through circulation drying many times, until the rice is dry to suitable requirement, just so just can make the device once only carry out abundant drying to the rice, just need not carry out drying many times to the rice again, reducible workman's operating procedure, thereby greatly accelerated the drying efficiency of rice, therefore, the practicality is strong.

Wherein, be equipped with guide rail 6 in the drying cabinet 1, set up on the fixed plate 31 with guide rail 6 matched with guide way 33, guide rail 6 and guide way 33 sliding connection just like this through the spacing guide effect of guide rail 6 with guide way 33, just can make fixed plate 31 only do the linear motion of vertical direction in drying cabinet 1, make more stable that fixed plate 31 removed to the wobbling stability of buffer board 2 has been guaranteed.

Referring to fig. 4, in this embodiment, the driving assembly 4 includes a first motor 41, a cam 42, a connecting plate 43, a plurality of guide posts 44, a plurality of springs 45 and two sets of connecting rods 46, two sets of the connecting rods 46 are respectively connected to two sets of fixing plates 31, the connecting rods 46 penetrate through the drying box 1 and are slidably connected thereto, the connecting plate 43 is connected to the connecting rods 46, the plurality of guide posts 44 are all disposed on the drying box 1, the guide posts 44 all penetrate through the connecting plate 43 and are slidably connected thereto, the plurality of springs 45 are respectively sleeved on the plurality of guide posts 44, two ends of the springs 45 are respectively connected to the guide posts 44 and the connecting plate 43, the first motor 41 is disposed on the drying box 1, the cam 42 is disposed at an output end of the first motor 41 and is matched with the connecting plate 43, in an implementation process, the connecting plate 43 always moves on the surface of the cam 42 under the elastic force of the plurality of springs 45, when the cam 42 is rotated to be matched with the connecting plate 43, the connecting plate 43 is rotated to be driven to be moved up and down by the connecting plate 43, and the connecting plate 43 is driven to be used by the connecting plate 31, and thus the connecting plate 41 is driven to swing up and down and the connecting plate 43.

Specifically, in this embodiment, the feeding assembly 5 includes a feeding barrel 51, a feeding auger 52, a second motor 53, a first connecting pipe 54, a second connecting pipe 55 and a discharge opening 56, the feeding barrel 51 is disposed on the drying box 1, the feeding auger 52 is rotatably disposed in the feeding barrel 51, the second motor 53 is disposed on the feeding barrel 51 and is connected to one end of the feeding auger 52, the first connecting pipe 54 is disposed at the lower end of the feeding barrel 51 and is connected to the discharge opening 12, the second connecting pipe 55 is disposed at the upper end of the feeding barrel 51 and is connected to the feed opening 11, the discharge opening 56 is disposed at the lower end of the feeding barrel 51, so that when rice is discharged through the discharge opening 12 after being dried for one time, the rice can enter the feeding barrel 51 through the second connecting pipe 55, then the feeding auger 52 is driven to rotate by the second motor 53, the rice can be conveyed upwards through the auger 52, and finally the rice is conveyed to the topmost end of the feeding barrel 51 and then enters the feed opening 11 through the first connecting pipe 54, so that the rice is dried again and then enters the drying box 1, and thus the rice can be continuously conveyed through the feeding auger 52;

after the rice is dried, the discharge opening 56 can be opened, and then the feeding auger 52 is driven by the second motor 53 to rotate reversely, so that the rice can be conveyed downwards by the feeding auger 52, and the rice is discharged through the discharge opening 56, and the rice drying machine is convenient to use.

Further, in this embodiment, all seted up a plurality of bleeder vents 7 on the buffer board 2, when the rice stops on buffer board 2 like this, just can make the upper surface of rice and lower surface can both fully contact with hot-blast, just so can further strengthen the drying effect of rice, the practicality is strong.

Wherein, all be equipped with a plurality of balls in the guide way 33, can reduce the frictional force between guide way 33 and the guide rail 6 like this to make fixing plate 31 remove more in the same direction as smooth, avoid fixing plate 31 and guide rail 6 to receive wearing and tearing, guaranteed life.

Preferably, the connecting plate 43 is provided with the roller 8 matched with the cam 42, so that the cam 42 is always in rolling contact with the roller 8, the cam 42 is prevented from being abraded by friction with the connecting plate 43 all the time, the service lives of the cam 42 and the connecting plate 43 are guaranteed, meanwhile, the roller 8 can enable the cam 42 to rotate to be smoother, the connecting plate 43 is enabled to move up and down more smoothly, and the buffer plate 2 can swing more stably and is convenient to use.

The working principle of the application is as follows:

in the implementation process, the heating device is firstly connected with the hot air inlet 14, hot air is blown into the drying box 1 through the heating device and the hot air inlet 14, then the cam 42 is driven to rotate through the first motor 41, the cam 42 is used in cooperation with the spring 45 in the rotating process, the connecting plate 43 is driven to continuously move up and down, so that the connecting plate 43 drives the two groups of fixing plates 31 to do up-and-down reciprocating motion through the connecting rod 46, the fixing plates 31 drive the plurality of buffer plates 2 to continuously swing up and down through the plurality of connecting rods 32 in the sliding process, then the rice is put into the drying box 1 through the feed inlet 11, the rice firstly falls on the buffer plate 2 at the top, when the buffer plate 2 swings once, the rice on the buffer plate 2 moves downwards for a certain distance, so that when the buffer plate 2 swings for a plurality of times, the rice on the buffer plate 2 at the top falls on the next buffer plate 2, finally, the rice can fall on all the buffer boards 2 from top to bottom in sequence, and the buffer boards 2 can move once when swinging, so that the rice can be prevented from continuously flowing, the staying time of the rice in the drying box 1 can be prolonged, the rice can be more fully contacted with hot air and can be kept for a longer time, meanwhile, when the buffer boards 2 do not swing, the rice can stay on the buffer boards 2, so that the water in the rice can be conveniently diffused, the rice is more fully dried, the phenomenon that the outer surface of the rice is dried to meet the requirement is avoided, but the humidity of the inner core of the rice is still very high, the phenomenon that the rice is insufficiently dried is caused, meanwhile, the swinging frequency of the buffer boards 2 can be adjusted by adjusting the rotating speed of the first motor 41, and the staying time length of the rice in the drying box 1 is adjusted, the use is convenient;

then, when the rice is discharged through the discharging opening 12 after being dried for one time, the rice enters the feeding cylinder 51 through the second connecting pipe 55, then the feeding auger 52 is driven to rotate through the second motor 53, the rice can be conveyed upwards through the feeding auger 52, the rice enters the drying box 1 again through the first connecting pipe 54 for drying treatment, so that the rice in the drying box 1 is continuously and circularly conveyed through the feeding auger 52, the rice is circularly dried for a plurality of times until the rice is dried to meet the proper requirement, the device can fully dry the rice for one time, the rice is not required to be dried for a plurality of times, the operation steps of workers can be reduced, and the drying efficiency of the rice is greatly improved;

and finally, after the rice is dried, opening the discharge opening 56, driving the feeding auger 52 to rotate reversely by the second motor 53, and conveying the rice downwards by the feeding auger 52 to discharge the rice through the discharge opening 56.

In the description of the present application, it should be noted that the terms "upper", "lower", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, which are only for convenience in describing the present application and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed in a specific orientation, and operate, and thus, should not be construed as limiting the present application. Unless expressly stated or limited otherwise, the terms "mounted," "connected," and "connected" are intended to be inclusive and mean, for example, that they may be fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present application can be understood by those of ordinary skill in the art as appropriate.

It is noted that, in this application, relational terms such as "first" and "second," and the like, are used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising a … …" does not exclude the presence of another identical element in a process, method, article, or apparatus that comprises the element.

The above description is merely exemplary of the present application and is presented to enable those skilled in the art to understand and practice the present application. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the application. Thus, the present application is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims (7)

1. The utility model provides a rice processing is with circulating desiccator which characterized in that, it includes:

the drying box (1) is provided with a feed inlet (11), a feed outlet (12), an exhaust outlet (13) and a hot air inlet (14);

the buffer plates (2) are provided with a plurality of groups, the buffer plates (2) are arranged in the drying box (1) in a staggered mode, and the buffer plates (2) are arranged in the drying box (1) in a rotating mode;

the drying oven comprises a drying oven body (1), a transmission assembly (3) and a plurality of buffer plates (2), wherein the transmission assembly (3) is at least provided with one group, the transmission assembly (3) comprises a fixing plate (31) and connecting rods (32) corresponding to the buffer plates (2), the fixing plate (31) is arranged in the drying oven body (1) in a sliding mode, the connecting rods (32) are all rotatably arranged on the fixing plate (31), and one ends, close to the buffer plates (2), of the connecting rods (32) are all rotatably connected with the buffer plates (2);

the driving assembly (4) is arranged in the drying box (1) and connected with the fixed plate (31) so as to drive the fixed plate (31) to slide up and down;

and the feeding component (5) is arranged on the drying box (1) and is connected with the feeding port (11) and the discharging port (12), and when rice passes through the discharging port (12) for discharging, the rice is conveyed into the feeding port (11) through the feeding component (5).

2. The circulation type dryer for rice processing according to claim 1, wherein:

a guide rail (6) is arranged in the drying box (1);

the fixed plate (31) is provided with a guide groove (33) matched with the guide rail (6), and the guide rail (6) is in sliding connection with the guide groove (33).

3. A circulation type drying machine for rice processing according to claim 2, wherein:

drive assembly (4) include first motor (41), cam (42), connecting plate (43), a plurality of guide post (44), a plurality of spring (45) and a plurality of connecting rod (46), and is a plurality of connecting rod (46) are connected with a plurality of fixed plate (31) respectively, connecting rod (46) run through drying cabinet (1) and rather than sliding connection, connecting plate (43) are connected, and are a plurality of with a plurality of connecting rod (46) guide post (44) are all established on drying cabinet (1), guide post (44) all run through connecting plate (43) and rather than sliding connection, and are a plurality of spring (45) are established respectively on a plurality of guide post (44), the both ends of spring (45) are connected with guide post (44) and connecting plate (43) respectively, first motor (41) are established on drying cabinet (1), cam (42) are established at the output of first motor (41) and are cooperateed with connecting plate (43).

4. The circulation type dryer for rice processing according to claim 1, wherein:

pay-off subassembly (5) are including a feed cylinder (51), pay-off auger (52), second motor (53), first connecting pipe (54), second connecting pipe (55) and bin outlet (56), a feed cylinder (51) is established on drying cabinet (1), pay-off auger (52) rotate and set up in a feed cylinder (51), second motor (53) are established on a feed cylinder (51) and are connected with the one end of pay-off auger (52), first connecting pipe (54) are established at the lower extreme of a feed cylinder (51) and are connected with feed opening (12), second connecting pipe (55) are established at the upper end of a feed cylinder (51) and are connected with feed inlet (11), the lower extreme in a feed cylinder (51) is established in bin outlet (56).

5. The circulation type dryer for rice processing according to claim 1, wherein:

the buffer plate (2) is provided with a plurality of air holes (7).

6. The circulation type dryer for rice processing according to claim 2, wherein:

a plurality of balls are arranged in the guide grooves (33).

7. A circulation type drying machine for rice processing according to claim 3, wherein:

and the connecting plate (43) is provided with a roller (8) matched with the cam (42).

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