CN215855051U - Food filling is with embracing jar conveyor - Google Patents

Abstract

The utility model provides a tank holding and conveying device for food filling, which comprises two feeding units arranged in a mirror image mode, wherein a material channel is formed between the two feeding units. The feeding unit comprises a guide assembly and a limiting assembly, and the limiting assembly is arranged above the guide assembly in a sliding mode. The guide assembly comprises a bearing plate and a first guide column, and the first guide column is vertically arranged on the top surface of the bearing plate. The spacing subassembly includes: the mounting block is arranged inside the shell in a sliding mode, and the limiting teeth are arranged on the side wall, close to the limiting notch, of the mounting block in an adjustable mode. The bottom surface of the mounting block is provided with a guide block, and the bottom surface of the guide block is provided with a first slide way and a second slide way. The can holding and conveying device for food filling can improve the stability of the bottle body to be filled in moving among filling stations and improve the moving efficiency of the bottle body among different filling stations.

Description

Food filling is with embracing jar conveyor

Technical Field

The utility model belongs to the field of filling equipment, and particularly relates to a can holding conveying device for food filling.

Background

In the production process of canned food, a worker needs to use a filling machine to fill the processed food into the can. To improve the accuracy of the filling quantity of the food product, the interior of existing filling machines usually comprises two filling stations. When using, roughly put in first filling station, and the accuracy is put in second filling station, and the cooperation through twice filling process can promote the filling precision of food to make the inside food filling volume of can bottle accord with the product demand.

In the prior art, the filling machine usually uses multiple sections of conveyor belts to cooperate to convey the cans. When there are two filling stations in the liquid filling machine inside, the conveyer belt of filling station below needs frequent opening to stop to make things convenient for the bottle to adjust well with different filling stations. However, frequent start/stop operations affect the stability of the bottle, which can lead to shaking of the bottle and thus induce the overflow of the contents. In addition, frequent start-stop process can also reduce the efficiency that the bottle was carried to reduce the work efficiency of food filling.

SUMMERY OF THE UTILITY MODEL

In view of the above, the present invention is directed to a can holding and conveying device for food filling, so as to solve the above technical problems.

In order to achieve the purpose, the technical scheme of the utility model is realized as follows:

a can holding and conveying device for food filling comprises two feeding units which are arranged in a mirror image manner, and a material channel is formed between the two feeding units; the feeding unit comprises a guide assembly and a limiting assembly, the limiting assembly is arranged above the guide assembly in a sliding mode, and the sliding direction of the limiting assembly is parallel to the length direction of the material channel; the guide assembly comprises a bearing plate and a first guide column, and the first guide column is vertically arranged on the top surface of the bearing plate; the spacing subassembly includes: the side wall of the shell, which is close to the material channel, is provided with a limiting notch, the bottom surface of the shell is provided with a guide notch, the mounting block is arranged in the shell in a sliding mode, the sliding direction of the mounting block is perpendicular to the length direction of the material channel, the limiting tooth is adjustably arranged on the side wall of the mounting block, which is close to the limiting notch, and the limiting tooth is aligned with the limiting notch; the bottom surface of the mounting block is provided with a guide block, the guide block is arranged in the guide notch, the bottom surface of the guide block is provided with a first slideway and a second slideway, the first slideway and the second slideway are both parallel to the length direction of the material channel, and the distance from the first slideway to the material channel is less than the distance from the second slideway to the material channel; when first guide post was arranged first slide inside in, inside the casing was arranged in to spacing tooth, when first guide post was arranged second slide inside in, spacing tooth inserts inside the material passageway.

Further, the guide assembly comprises a second guide column, and the second guide column is vertically arranged on the bearing plate; the guide block is provided with a guide slope surface on the side wall close to the second guide post, and when the guide slope surface is contacted with the second guide post, the second guide post can extrude the guide block towards the direction of the material channel, so that the second slideway is aligned with the first guide post.

Furthermore, the distance between the second guide column and the first guide column along the length direction of the material channel is greater than the length of the guide block along the length direction of the material channel.

Furthermore, the guide assembly further comprises a second guide wheel, and the second guide wheel is rotatably sleeved on the top of the second guide column.

Further, the guide assembly comprises a first guide wheel, and the first guide wheel is rotatably sleeved on the top of the first guide column.

Further, a first guide rod is arranged in the shell, and the length direction of the first guide rod is perpendicular to the length direction of the material channel; the mounting block is provided with a containing hole, and the first guide rod is arranged in the containing hole; the first guide rod is sleeved with a return spring, one end of the return spring is connected with the inner wall of the shell, and the other end of the return spring is connected with the side wall of the mounting block.

Furthermore, the limiting teeth are arranged uniformly along the length direction of the material channel, and an accommodating gap for accommodating the can bottle is formed between every two adjacent limiting teeth.

Furthermore, the side wall of the mounting block, which is close to the limiting notch, is provided with a mounting groove, the top surface of the mounting block is provided with an adjusting notch, and the adjusting notch is communicated with the mounting groove.

Furthermore, the limiting teeth comprise a tooth-shaped block and a connecting block, one end of the connecting block is connected with the tooth-shaped block, and the other end of the connecting block is inserted into the mounting groove; be equipped with locking bolt on the connecting block, inside adjusting the incision was arranged in to locking bolt, it is corresponding be equipped with the operation incision on the top surface of casing, the operation incision is adjusted the incision and is adjusted the relative right.

Furthermore, a second guide rod is arranged on the bearing plate, the length direction of the second guide rod is parallel to the length direction of the material channel, correspondingly, a guide hole is formed in the shell, and the second guide rod is arranged in the guide hole.

Compared with the prior art, the can holding and conveying device for food filling has the following advantages:

(1) the tank holding and conveying device for food filling can control the limit teeth to be inserted into or withdrawn from the material channel through the sliding of the mounting block in the shell. When the limiting teeth are inserted into the material channel, the bottle bodies in the material channel can be stirred by the sliding of the shell, so that the bottle bodies can move between different filling stations. After the limiting teeth exit from the material channel, the movement of the shell can not lead to the bottle body to shake, so that the leakage of the contents in the bottle body can be avoided.

(2) According to the can holding and conveying device for food filling, the sliding direction of the mounting block can be guided through the first guide rod, and the sliding direction of the shell is guided through the second guide rod, so that the higher transmission precision is achieved.

(3) According to the can holding and conveying device for food filling, the limiting teeth are adjustably arranged on the mounting block, and before the can holding and conveying device is used, a worker can adjust the distance between every two adjacent limiting teeth according to the outer diameter of a bottle body to be filled, so that the device can meet different working requirements.

Drawings

The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate an embodiment of the utility model and, together with the description, serve to explain the utility model and not to limit the utility model. In the drawings:

fig. 1 is a schematic structural view of a can holding conveying device according to an embodiment of the present invention (a limit tooth is disposed inside a housing);

fig. 2 is a cross-sectional view of a feeding unit according to an embodiment of the present invention (the limit teeth are disposed inside the housing);

FIG. 3 is a schematic structural diagram of a can holding conveying device according to an embodiment of the present invention (a limit tooth is inserted into a material channel);

fig. 4 is a cross-sectional view of a feeding unit according to an embodiment of the present invention (a limit tooth is inserted into the material passage);

FIG. 5 is an exploded view of a feed unit according to an embodiment of the present invention;

FIG. 6 is a cross-sectional view of a stop assembly according to an embodiment of the present invention;

FIG. 7 is a schematic structural diagram of a housing according to an embodiment of the present invention;

fig. 8 is a schematic structural diagram of a guide block according to an embodiment of the present invention.

Description of reference numerals:

1-a carrier plate; 11-a first guide post; 111-a first guide wheel; 12-a second guide post; 121-a second guide wheel; 13-a second guide bar; 2-a shell; 21-limiting cut; 22-a guide cut; 23-operating incision; 24-a first guide bar; 241-a return spring; 25-a pilot hole; 3-mounting a block; 31-a receiving hole; 32-mounting grooves; 33-adjusting the incision; 4-a guide block; 41-a first slideway; 42-a second slide; 43-guide slope; 51-a toothed block; 52-connecting block; 521-a locking bolt; 6-cylinder; 61-telescopic rod.

Detailed Description

It should be noted that the embodiments and features of the embodiments may be combined with each other without conflict.

In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like, indicate orientations or positional relationships based on those shown in the drawings, and are used only for convenience in describing the present invention and for simplicity in description, and do not indicate or imply that the referenced devices or elements must have a particular orientation, be constructed and operated in a particular orientation, and thus, are not to be construed as limiting the present invention. Furthermore, the terms "first", "second", etc. are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first," "second," etc. may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless otherwise specified.

In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; 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 invention can be understood by those of ordinary skill in the art through specific situations.

The present invention will be described in detail below with reference to the embodiments with reference to the attached drawings.

A can holding and conveying device for food filling is structurally illustrated in figures 1-8, and in the embodiment, the can holding and conveying device comprises two feeding units which are arranged in a mirror image mode, and a material channel is formed between the two feeding units. When the tank holding conveying device is installed, workers can arrange the tank holding conveying device below the filling station, and the two ends of the material channel are respectively communicated with the conveying belts on the two sides of the filling station. When using, this embrace a jar conveyor and can order about the bottle that gets into material passageway and remove between two filling stations to make things convenient for the liquid filling machine to carry out the food filling.

Specifically, the feeding unit comprises a guide assembly and a limiting assembly, wherein the limiting assembly is arranged above the guide assembly in a sliding mode, and the sliding direction of the limiting assembly is parallel to the length direction of the material channel. When using, the slip of spacing subassembly can be stirred the inside bottle of material passageway, and the direction subassembly can restrict the removal route of spacing subassembly, controls the opportunity of stirring of spacing subassembly to the bottle simultaneously.

Fig. 5 is an exploded view of the feeding unit, and as shown in the figure, the guide assembly comprises a carrying plate 1 and a first guide post 11, and the first guide post 11 is vertically disposed on the top surface of the carrying plate 1. Spacing subassembly includes: casing 2, installation piece 3 and spacing tooth, installation piece 3 slides and sets up inside casing 2, and spacing tooth setting is on installation piece 3. When the material channel structure works, the shell 2 slides along the length direction of the material channel under the driving of the driving assembly, and meanwhile, the mounting block 3 can move towards the direction close to the material channel or far away from the material channel according to the position condition of the shell 2, so that the limiting teeth are controlled to be inserted into or withdrawn from the material channel. As shown in fig. 1 and 2, when the limiting teeth are inserted into the material passage, the sliding of the limiting assembly can cause the limiting teeth to stir the bottle body, thereby driving the bottle body to move. As shown in fig. 3 and 4, when the limiting teeth exit from the material channel, the sliding of the limiting component will not affect the bottle body, thereby avoiding the bottle body from shaking.

Alternatively, in the present embodiment, the driving assembly may comprise a cylinder 6 and an expansion rod 61, and the housing 2 is connected to the cylinder 6 through the expansion rod 61. Can control telescopic link 61 through cylinder 6 and stretch out and draw back to drive spacing subassembly and carry out reciprocating motion along the length direction of material passageway. Correspondingly, the worker can also select the existing equipment such as a hydraulic cylinder or a motor to replace the air cylinder 6, so that the limiting assembly obtains sliding power.

In addition, in order to prevent the shell 1 from deviating in the sliding process, the bearing plate 1 may be provided with a second guide rod 13, and the length direction of the second guide rod 13 is parallel to the length direction of the material channel. Accordingly, a guide hole 25 is formed in the housing 2, and the second guide rod 13 is disposed inside the guide hole 25. When the driving assembly drives the shell 2 to slide, the matching of the first guide rod 13 and the guide hole 25 can guide the sliding path of the shell 2, so that the shell 2 is ensured to always perform linear reciprocating motion parallel to the material channel.

In order to facilitate the assembly between the mounting block 3 and the housing 2 and ensure that the limit teeth can be smoothly inserted into the material passage, as shown in fig. 6 and 7, a limit notch 21 is formed on the side wall of the housing 2 close to the material passage, and a guide notch 22 is formed on the bottom surface of the housing 2. The limiting teeth are adjustably arranged on the side wall, close to the limiting notch 21, of the mounting block 3, the limiting teeth are aligned with the limiting notch 21, and the sliding direction of the mounting block 3 is perpendicular to the length direction of the material channel. When the installation block 3 slides towards the direction close to the material channel, the limiting teeth enter the material channel along the limiting notches 21, and when the installation block 3 slides towards the direction far away from the material channel, the limiting teeth enter the shell 2 along the limiting notches 21.

In addition, in order to facilitate the restriction of the sliding path of the mounting block 3, a guide block 4 is provided on the bottom surface of the mounting block 3, and the guide block 4 is placed inside the guide slit 22 when mounting is performed. As shown in fig. 8, a first slideway 41 and a second slideway 42 are arranged on the bottom surface of the guide block 4, the first slideway 41 and the second slideway 42 are both parallel to the length direction of the material channel, and after the installation is completed, the distance from the first slideway 41 to the material channel is smaller than the distance from the second slideway 42 to the material channel.

In the process of sliding the limiting component, the first guide post 11 can limit the position of the mounting block 3 according to the position condition of the limiting component. Specifically, when the first guide post 11 contacts the guide block 4, the first guide post 11 will slide inside the first slideway 41 or the second slideway 42. As shown in fig. 2, when the first guide post 11 is placed inside the first slideway 41, the limit teeth are placed inside the housing 2. As shown in fig. 4, when the first guide post 11 is placed inside the second chute 42, the limit teeth are inserted inside the material passage.

Furthermore, to facilitate the entry of the first guiding post 11 into the interior of the second slideway 42 due to the first slideway 41, the second guiding assembly may further comprise a second guiding post 12. Specifically, the second guiding column 12 is vertically disposed on the bearing plate 1, and correspondingly, a guiding slope 43 is disposed on the side wall of the guiding block 4 close to the second guiding column 12. When the guide slope 43 contacts the second guide post 12, the second guide post 12 will extrude the guide slope 43, and at this time, the mounting block 3 will slide toward the material passage, so that the second slideway 42 is aligned with the first guide post 11. At this moment, the limiting teeth are inserted into the material channel, so that the bottle body in the material channel can be stirred by the sliding of the limiting assembly.

Optionally, to ensure that the first guiding post 11 is separated from the first slideway 41 before the second guiding post 12 contacts the guiding slope 43, the distance between the second guiding post 12 and the first guiding post 11 along the length direction of the material channel should be greater than the length of the guiding block 4 along the length direction of the material channel. When the first guide post 11 is separated from the first slide way 41 at the end away from the guide slope 43, the second guide post 12 will contact the guide slope 43, so that the second slide way 42 is aligned with the first guide post 11.

Accordingly, in order to facilitate the first guiding column 11 to enter the first slide way 41 from the second slide way 42, the housing 2 is provided with a first guiding rod 24 and a return spring 241. Specifically, as shown in fig. 6, the length direction of the first guide rod 24 is perpendicular to the length direction of the material passage, an accommodating hole 31 is formed in the mounting block 3, and the first guide rod 24 is disposed inside the accommodating hole 31. The return spring 241 is sleeved on the first guide rod 24, one end of the return spring 241 is connected with the inner wall of the shell 2, and the other end of the return spring is connected with the side wall of the mounting block 3.

When the first guidepost 11 is placed inside the second runner 42, the return spring 241 will be compressed. When the first guiding column 11 is separated from the second sliding way 42 at the end close to the guiding slope 43, the elastic force inside the return spring 241 will drive the mounting block 3 to slide in the direction away from the material passage, so that the limiting teeth enter the inside of the housing 2.

Alternatively, to reduce the frictional resistance between the guide blocks 4 and the first and second guide posts 11 and 12, the guide assembly may include first and second guide wheels 111 and 121. Specifically, the first guide wheel 111 is rotatably sleeved on the top of the first guide post 11, and the second guide wheel 121 is rotatably sleeved on the top of the second guide post 12. When the first guide post 11 (or the second guide post 12) contacts the guide block 4, the rotation of the first guide wheel 111 (or the second guide wheel 121) can convert the original sliding friction form into the rolling friction form, thereby reducing the friction degree between the guide post and the guide block 4.

The working process of the above scheme is described as follows:

when in use, the device is arranged below the filling station, and two ends of the material channel are respectively communicated with the feeding conveyer belt and the discharging conveyer belt. Under initial position, spacing subassembly is located the pay-off conveyer belt top, and spacing tooth will insert material passageway inside to treat the bottle of filling and fix. When the limiting component slides towards the discharging conveying belt from the feeding conveying belt, the fixed bottle body can move along with the limiting component, so that the bottle body is aligned with different filling stations to execute food filling tasks. After the completion filling work, spacing subassembly continues to remove to ejection of compact conveyer belt direction, and when the bottle removed to ejection of compact conveyer belt top, first guide post 11 will break away from second slide 42, and under reset spring 241's effect, inside spacing tooth will retract casing 2. Subsequently, the limiting component will slide towards the feeding conveyor belt, and when the limiting component returns to the initial position again, the second guide post 12 will contact with the guide slope 43, so that the limiting teeth are inserted into the material channel again, and the next batch of bottle bodies to be filled is fixed.

As an optional implementation manner of the embodiment, in order to increase the number of the bottles which are stirred by the limiting assembly at a time, the limiting teeth can be arranged in a plurality, and the limiting teeth are uniformly arranged along the length direction of the material channel. Form the accommodation gap that is used for holding the can bottle between two adjacent spacing teeth, insert the inside back of material passageway when spacing tooth, a plurality of accommodation gaps can hold a plurality of bottles of fixed simultaneously tightly, and then promote this device's conveying efficiency.

Because in the actual working process, the bottles to be filled may have different specifications, in order to improve the adaptability of the device to bottles of different specifications, an installation groove 32 may be provided on the side wall of the installation block 3 close to the limit notch 21, an adjustment notch 33 is provided on the top surface of the installation block 3, and the adjustment notch 33 is communicated with the installation groove 32. Correspondingly, the limiting teeth comprise a tooth-shaped block 51 and a connecting block 52, one end of the connecting block 52 is connected with the tooth-shaped block 51, the other end of the connecting block is inserted into the mounting groove 32, and a locking bolt 521 is arranged on the connecting block 52.

When the bottle filling machine is installed, the distance between two adjacent connecting blocks 52 can be adjusted by a worker according to the specification of a bottle body to be filled, so that the inner size of the accommodating gap is adjusted. After the adjustment is completed, the worker may screw the locking bolt 521, thereby fixing the position of the connection block 52.

Optionally, in order to facilitate the worker to tighten the locking bolt 521, the top surface of the housing 2 should be provided with an operation notch 23, and the operation notch 23 is aligned with the adjustment notch 33. When the adjusting device is used, a worker can directly adjust the locking bolt 521 through operating the notch 23, so that the position of the limiting tooth can be adjusted without detaching the mounting block 3.

The following explains the effects of the above-described scheme:

the embodiment provides a food filling is with embracing jar conveyor, can be through the slip of installation piece in the casing inside, control spacing tooth and insert or withdraw from the material passageway. When spacing tooth inserted material passageway, the slip of casing can be stirred the bottle in the material passageway, consequently can order about the bottle and remove between different filling stations to promote the precision and the efficiency that the bottle removed. Secondly, after spacing tooth withdrawed from the material passageway, the removal of casing can not lead to the bottle to take place to rock, consequently can avoid the content in the bottle to leak, keeps the sanitary degree of filling station surrounding environment. In addition, this device can also be according to the distance between the two adjacent spacing teeth of actual demand adjustment, consequently can satisfy different work demands.

The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the utility model, and any modifications, equivalents, improvements and the like that fall within the spirit and principle of the present invention are intended to be included therein.

Claims (10)

1. The utility model provides a food filling is with embracing jar conveyor, includes that two are the feeding unit that the mirror image was arranged, and forms material passageway, its characterized in that between two feeding units: the feeding unit comprises a guide assembly and a limiting assembly, the limiting assembly is arranged above the guide assembly in a sliding mode, and the sliding direction of the limiting assembly is parallel to the length direction of the material channel; the guide assembly comprises a bearing plate (1) and a first guide column (11), and the first guide column (11) is vertically arranged on the top surface of the bearing plate (1); the spacing subassembly includes: the material passage structure comprises a shell (2), a mounting block (3) and limiting teeth, wherein a limiting notch (21) is formed in the side wall, close to a material passage, of the shell (2), a guide notch (22) is formed in the bottom surface of the shell (2), the mounting block (3) is arranged in the shell (2) in a sliding mode, the sliding direction of the mounting block (3) is perpendicular to the length direction of the material passage, the limiting teeth are adjustably arranged on the side wall, close to the limiting notch (21), of the mounting block (3), and the limiting teeth are aligned with the limiting notch (21); the bottom surface of the mounting block (3) is provided with a guide block (4), the guide block (4) is arranged in the guide notch (22), the bottom surface of the guide block (4) is provided with a first slide way (41) and a second slide way (42), the first slide way (41) and the second slide way (42) are both parallel to the length direction of the material channel, and the distance from the first slide way (41) to the material channel is smaller than the distance from the second slide way (42) to the material channel; when first guide post (11) were arranged in inside first slide (41), spacing tooth was arranged in inside casing (2), when first guide post (11) were arranged in inside second slide (42), spacing tooth inserts inside the material passageway.

2. The can holding and conveying device for food filling according to claim 1, wherein: the guide assembly comprises a second guide column (12), and the second guide column (12) is vertically arranged on the bearing plate (1); the side wall of the guide block (4) close to the second guide post (12) is provided with a guide slope surface (43), and when the guide slope surface (43) is in contact with the second guide post (12), the second guide post (12) can extrude the guide block (4) towards the direction of the material channel, so that the second slideway (42) is aligned with the first guide post (11).

3. The can holding and conveying device for food filling according to claim 2, wherein: the distance between the second guide column (12) and the first guide column (11) along the length direction of the material channel is larger than the length of the guide block (4) along the length direction of the material channel.

4. The can holding and conveying device for food filling according to claim 2, wherein: the guide assembly further comprises a second guide wheel (121), and the second guide wheel (121) is rotatably sleeved on the top of the second guide column (12).

5. The can holding and conveying device for food filling according to claim 1, wherein: the guide assembly comprises a first guide wheel (111), and the first guide wheel (111) is rotatably sleeved on the top of the first guide column (11).

6. The can holding and conveying device for food filling according to claim 1, wherein: a first guide rod (24) is arranged in the shell (2), and the length direction of the first guide rod (24) is vertical to the length direction of the material channel; an accommodating hole (31) is formed in the mounting block (3), and the first guide rod (24) is arranged in the accommodating hole (31); the first guide rod (24) is sleeved with a return spring (241), one end of the return spring (241) is connected with the inner wall of the shell (2), and the other end of the return spring is connected with the side wall of the mounting block (3).

7. The can holding and conveying device for food filling according to claim 1, wherein: the limiting teeth are arranged uniformly along the length direction of the material channel, and an accommodating gap for accommodating the can bottle is formed between every two adjacent limiting teeth.

8. The can holding and conveying device for food filling according to claim 1, wherein: the side wall of the mounting block (3) close to the limiting notch (21) is provided with a mounting groove (32), the top surface of the mounting block (3) is provided with an adjusting notch (33), and the adjusting notch (33) is communicated with the mounting groove (32).

9. The can holding and conveying device for food filling according to claim 8, wherein: the limiting teeth comprise a tooth-shaped block (51) and a connecting block (52), one end of the connecting block (52) is connected with the tooth-shaped block (51), and the other end of the connecting block is inserted into the mounting groove (32); the connecting block (52) is provided with a locking bolt (521), the locking bolt (521) is arranged in the adjusting notch (33), correspondingly, the top surface of the shell (2) is provided with an operating notch (23), and the operating notch (23) is aligned with the adjusting notch (33).

10. The can holding and conveying device for food filling according to claim 1, wherein: the bearing plate (1) is provided with a second guide rod (13), the length direction of the second guide rod (13) is parallel to the length direction of the material channel, correspondingly, a guide hole (25) is formed in the shell (2), and the second guide rod (13) is arranged in the guide hole (25).

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