CN221699907U - Cutting clout collecting table - Google Patents

Abstract

The utility model discloses a cutting excess material collecting table which comprises a receiving table and a convenient material guiding device. According to the utility model, the convenient material guide device is arranged, namely, the material receiving plate can realize the pre-collection movement of the residual materials, and the movable frame can transversely move under the transmission of the screw rod and the connecting pipe screw threads to swing up and down, so that the swing arm can assist in lifting the material receiving plate, the material receiving plate is integrally inclined, the automatic guiding and collecting of the collected residual materials are realized, the one-time lifting and dumping collecting treatment of the residual materials of plastic products is realized, the advantage of one-time lifting and dumping collecting treatment of the residual materials of plastic products is realized, and the material pushing assembly is arranged, namely, the locking structure is rapidly released and locked with the material receiving plate in a supporting and clamping way, so that the scraper can smoothly transversely move along the inside of the material receiving plate to assist in transversely pushing the attached residual materials, the guiding and collecting sufficiency of the residual materials is improved, and the auxiliary transverse pushing assistance guiding and matching of the residual materials collected in the material receiving plate is realized, and the advantage of accelerating the residual material collecting efficiency is realized.

Description

A cutting waste collection table

Technical Field

The utility model relates to the field related to plastic product processing, in particular to a cutting waste material collection table.

Background Art

Plastic products are a general term for daily and industrial products made of plastic as the main raw material, including products made of plastic by injection molding, blister molding and other processes. Plastic is a type of synthetic polymer material with plasticity. During the production and processing of plastic products, it is necessary to use a cutting device to cut off the excess material at the edge;

The remaining scraps can still be recycled and processed to improve resource utilization and reduce resource waste. To this end, a collection point needs to be installed on the side of the cutting table to collect and recycle the cut scraps.

The existing application number is CN202220576816.9, which is a device for cutting residual materials of plastic products. It belongs to the technical field of plastic product processing, and includes a cutting table and a cutting knife arranged above the cutting table. The side of the cutting table is connected with a horizontal plate, and the top of the horizontal plate is connected to the vertical plate and the support frame. The top of the horizontal part of the support frame is connected with a hydraulic cylinder, and the bottom end of the hydraulic cylinder is connected with a connecting plate. The bottom end of the connecting plate is connected with a motor, and the cutting knife is transmission-connected to the outer periphery of the output shaft of the motor. The top of the horizontal part of the support frame is also connected with a dust collector. The top of the cutting table is slidably connected with a positioning plate for assisting in positioning the plastic product, and a plurality of equidistantly arranged telescopic rods are connected between the positioning plate and the vertical plate. The side of the cutting table is detachably connected with a residual material box. The device for cutting residual materials of plastic products is convenient for cutting, collecting and transporting residual materials, and can automatically collect dust generated during cutting, which is convenient for practical use.

The above-mentioned existing cutting device assists in collecting the cutting waste by installing a waste box on the right side of the cutting table. However, during the waste collection process, it is necessary to manually pick up or push the waste so that the waste falls and is collected inside the waste box, resulting in less efficient automatic waste collection. Secondly, the manual picking and collection method may cause the waste to fall, so that the cut waste needs to be picked up and collected multiple times, resulting in poor speed of the waste collection process.

Utility Model Content

Therefore, in order to solve the above-mentioned shortcomings, the utility model provides a cutting waste material collection table.

In order to achieve the above-mentioned purpose, the utility model adopts the following technical scheme: a cutting waste material collection table, including a receiving table, a motor is installed on the left side of the lower end of the receiving table, a belt transmission part is connected to the front side of the motor for transmission, and the upper right side of the belt transmission part is connected to the cutting blade, a collection box is provided on the right side of the receiving table, and universal wheels are rotatably connected to the four corners of the bottom of the collection box, the front and back sides of the left side of the collection box are connected to fasteners, and the fasteners are fastened to the front and back ends of the right side of the receiving table, and also include a convenient material guiding device arranged on the upper end of the receiving table, the convenient material guiding device includes a lifting assembly arranged inside the upper end of the receiving table, a material receiving plate installed on the top of the lifting assembly, connecting blocks connected to the two ends of the right side of the material receiving plate, a chamfered surface opened on the rear side of the material receiving plate, and a pushing assembly arranged inside the left side of the material receiving plate.

Preferably, the lifting assembly includes a shell built into the upper end of the receiving platform, a servo motor installed on the left side of the shell, a screw connected to the right side of the servo motor, a connecting pipe threadedly connected to the right side of the screw, a movable frame fastened to the right side of the connecting pipe, a swing arm transmission connected to the right side of the movable frame, and a roller rotatably connected to the left side of the swing arm, and the outer side of the roller is against the bottom of the receiving plate.

Preferably, the pushing assembly includes a scraper built into the left side of the receiving plate, a brush layer connected to the lower end of the scraper, a limit block fixed to the front side of the scraper, a pull shaft inserted into the limit block, and a locking structure installed in the middle of the upper end of the scraper, and the scraper is locked against the left side of the receiving plate through the locking structure provided in the middle of the upper end.

Preferably, the locking structure includes a positioning cylinder built into the scraper, a plug-in shaft inserted into the positioning cylinder, a first compression spring arranged on the outside of the plug-in shaft, a connecting ring sleeved on the outside of the plug-in shaft and abutted against the upper end of the first compression spring, a rotating block arranged at the upper end of the plug-in shaft, a connecting shaft plugged into the left side of the rotating block, a second compression spring installed on the outside of the connecting shaft, a moving block fastened to the left side of the connecting shaft and a limiting shaft plugged into the left side of the moving block, and the moving block can abut against the left side of the receiving plate through the limiting shaft arranged on the left side.

Preferably, the material receiving plate is rotatably connected to the front and rear connection blocks on the right side, and the right side of the material receiving plate is arranged in an unclosed opening shape.

Preferably, the movable frame is arranged in an inverted L-shaped frame as a whole, and a vertical groove is correspondingly opened at the upper end of the right side of the movable frame.

Preferably, the swing arm is rotatably connected to the upper end of the shell, and the front end of the right side of the swing arm is transmission-connected to a vertical groove provided at the upper end of the right side of the moving frame.

Preferably, the scraper is longitudinally slidably built into the material receiving plate, and the scraper is slidably connected to the upper front end of the material receiving plate through a limit block provided at the upper front end.

Beneficial effects of the utility model:

Advantage 1: The utility model is provided with a convenient material guiding device, that is, the material receiving plate can realize the pre-collection of the residual material, and the movable frame can be moved horizontally and the swing arm can be swung up and down through the transmission of the screw and the connecting pipe thread, so that the swing arm can assist in lifting the material receiving plate, so that the material receiving plate is tilted as a whole, and the collected residual material can be automatically guided out and collected, and the residual material can be collected and coordinated at one time, thereby achieving the advantage of one-time lifting, dumping, collection and processing of the residual material of plastic products.

Advantage 2: The utility model is provided with a pushing assembly, that is, a quick release locking structure and a clamping lock with the receiving plate support, so that the scraper can move smoothly along the inside of the receiving plate to assist in pushing the attached residual material horizontally, thereby improving the residual material discharge and collection. The auxiliary horizontal pushing and assisting discharge of the residual material collected inside the receiving plate is achieved, thereby accelerating the residual material collection efficiency.

BRIEF DESCRIPTION OF THE DRAWINGS

Fig. 1 is a schematic diagram of the structure of the utility model;

Figure 2 is a schematic structural diagram of the convenient material guiding device of the utility model;

FIG3 is a schematic diagram of the internal structure of the lifting assembly of the utility model from the front view;

Figure 4 is a schematic diagram of the structure of the pusher assembly of the utility model;

FIG. 5 is a schematic diagram of the locking structure of the utility model.

Among them: receiving platform-1, motor-2, belt transmission part-3, cutting blade-4, collection box-5, universal wheel-6, fastener-7, convenient material guiding device-8, lifting component-81, shell-811, servo motor-812, screw-813, connecting pipe-814, moving frame-815, swing arm-816, roller-817, receiving plate-82, connecting block-83, chamfered surface-84, pushing component-85, scraper-851, brush layer-852, limit block-853, pull shaft-854, locking structure-855, positioning cylinder-8551, plug-in shaft-8552, first compression spring-8553, connecting ring-8554, rotating block-8555, connecting shaft-8556, second compression spring-8557, moving block-8558, limit shaft-8559.

DETAILED DESCRIPTION

In order to further explain the technical solution of the present utility model, it is described in detail through specific embodiments below.

Please refer to Figure 1. The utility model provides a cutting waste material collection platform, including a receiving platform 1, a motor 2 is installed on the left side of the lower end of the receiving platform 1, a belt transmission member 3 is connected to the front side of the motor 2, and the upper right side of the belt transmission member 3 is connected to the cutting blade 4, a collection box 5 is provided on the right side of the receiving platform 1, and the four corners of the bottom of the collection box 5 are rotatably connected to universal wheels 6, the front and rear sides of the left side of the collection box 5 are connected to fasteners 7, and the fasteners 7 are fastened to the front and rear ends of the right side of the receiving platform 1, and also includes a convenient material guiding device 8 arranged on the upper end of the receiving platform 1.

Please refer to Figure 2. The convenient material guiding device 8 in this embodiment includes a lifting component 81 arranged inside the upper end of the receiving platform 1 to realize lifting and guiding transmission cooperation, and a receiving plate 82 correspondingly arranged on the top of the lifting component 81 to realize pre-receiving and collecting of residual materials, and a transverse groove is correspondingly opened at the upper end of the front side of the receiving plate 82, and a semi-arc groove is correspondingly opened in the middle of the left side of the receiving plate 82, connecting blocks 83 are symmetrically installed at the front and rear ends of the right side of the receiving plate 82 to facilitate the cooperation with the connecting blocks 83 on both sides to realize the inclined lifting and material guiding activity of the receiving plate 82, a chamfered surface 84 is obliquely opened on the rear side of the receiving plate 82 to realize smooth material receiving cooperation, and a pushing component 85 is installed on the left side of the receiving plate 82 to assist in horizontal pushing of residual material collection.

Among them, the material receiving plate 82 is rotatably connected to the front and rear connecting blocks 83 on the right side, and the right side of the material receiving plate 82 is set in an unclosed opening shape to ensure that when the material receiving plate 82 is lifted and tilted, the collected excess material can be efficiently discharged.

Please refer to Figure 3. The lifting component 81 in this embodiment includes a shell 811 built into the upper end of the receiving platform 1 to realize internal parts protection cooperation, a servo motor 812 installed on the left side of the shell 811, a screw 813 connected to the right output end of the servo motor 812 and connected to the left side of the shell 811 for transverse rotation, a connecting pipe 814 threadedly connected to the right side of the screw 813, a movable frame 815 fastened to the right side of the connecting pipe 814 for left and right transverse transmission cooperation, a swing arm 816 transmission-connected to the upper end of the right side of the movable frame 815 for swinging and lifting transmission, a roller 817 longitudinally connected to the left side of the swing arm 816 for rotation, and the outer side of the roller 817 is against the bottom of the receiving plate 82, to ensure that the roller 817 can swing and lift with the swing arm 816, so as to realize the overall stable lifting and tilting of the receiving plate 82.

Specifically, the movable frame 815 is arranged in an inverted L-shaped frame as a whole, and a vertical groove is opened corresponding to the upper right end of the movable frame 815, so as to ensure that the movable frame 815 and the lower right end of the swing arm 816 are efficiently connected by transmission; the swing arm 816 is rotatably connected to the upper end of the shell 811, and the front right side of the swing arm 816 is connected by transmission to the vertical groove opened at the upper right end of the movable frame 815, so as to ensure that the swing arm 816 swings back and forth smoothly as a whole, so as to realize the efficient lifting and guiding transmission of the receiving plate 82.

Please refer to Figures 4-5. The pushing assembly 85 in this embodiment includes a scraper 851 longitudinally built into the left side of the receiving plate 82 for horizontal movement and pushing the material left and right, a brush layer 852 adhered and fixed to the lower end of the scraper 851, so as to cooperate with the brush layer 852 to synchronously scrape and clean the auxiliary dust inside the receiving plate 82, a corresponding limit block 853 fixedly connected to the upper front end of the scraper 851, and the scraper 851 cooperates with the limit block 853 set on the front side to be slidably connected with the transverse groove opened at the upper front end of the receiving plate 82, a pull shaft 854 vertically inserted into the upper end of the limit block 853 for holding, pushing and pulling, a locking structure 855 installed in the middle of the upper end of the scraper 851 to achieve stable locking of the scraper 851 when not in use, and the scraper 851 is locked against the left side of the receiving plate 82 through the locking structure 855 set in the middle of the upper end.

Further description, the locking structure 855 includes a positioning cylinder 8551 vertically installed inside the scraper 851, a plug-in shaft 8552 vertically plugged into the positioning cylinder 8551 and capable of being pulled up and down, a first compression spring 8553 correspondingly installed on the outside of the plug-in shaft 8552 and capable of providing elastic rebound support, a connecting ring 8554 slidably sleeved on the outside of the upper end of the plug-in shaft 8552 and abutting against the upper end of the first compression spring 8553, a rotating block 8555 fastened to the outside of the upper end of the plug-in shaft 8552, and a rotating block 8555 laterally plugged into the rotating block 8555. The connecting shaft 8556 on the left side of the block 8555 realizes the telescopic connection cooperation, and the second compression spring 8557 is installed on the outside of the connecting shaft 8556 to provide lateral elastic pulling cooperation, and the moving block 8558 is fastened and connected to the left side of the connecting shaft 8556, and is vertically inserted into the limiting shaft 8559 on the left side of the moving block 8558. The moving block 8558 can be clamped with the semi-arc groove on the left side of the receiving plate 82 through the limiting shaft 8559 on the left side, so as to realize the firm locking cooperation when the scraper 851 is not in use.

To further explain, the scraper 851 is longitudinally slidably built into the material receiving plate 82, and the scraper 851 is slidably connected to the front upper end of the material receiving plate 82 through the limit block 853 set at the front upper end, ensuring that the scraper 851 can cooperate with the sliding effect of the limit block 853 and the front upper end of the material receiving plate 82 to achieve left and right lateral movement and material pushing.

Here’s how it works:

When the present cutting waste material collection table is to be used, the plastic products to be cut can be placed on the upper end of the receiving table 1 in advance, and then, by operating the motor 2 arranged on the left side of the lower end of the receiving table 1, the motor 2 is made to cooperate with the belt transmission member 3 connected to the front end transmission to realize the rapid rotation of the cutting blade 4 connected to the upper end of the belt transmission member 3, so that the plastic products can contact with the rapidly rotating cutting blade 4 to realize rapid cutting activities, and the excess cut materials can be thrown into the collection box 5 arranged on the right side of the receiving table 1, so as to realize the rapid collection of the residual materials of the plastic products, and when the residual materials collected in the collection box 5 need to be cleaned, the locking of the front and rear fasteners 7 connected to the left side of the collection box 5 can be released, so that the collection box 5 can cooperate with the universal wheels 6 connected to the four corners of the bottom to realize the outward cleaning activities, thereby, the rapid collection and recycling of the residual materials of the plastic products can be efficiently realized;

In order to improve the efficiency of collecting the residual materials, a convenient material guiding device 8 is provided at the upper end of the receiving platform 1, that is, the residual materials cut from the plastic products can be guided obliquely by the chamfered surface 84 provided on the rear side of the receiving plate 82, and can quickly fall and be collected inside the receiving plate 82. When a certain amount of residual materials are collected inside the receiving plate 82, the servo motor 812 provided on the left side of the driving shell 811 can be used to make the screw 813 connected to the right output end of the servo motor 812 rotate rapidly. As the screw 813 rotates, the connecting pipe 814 threadedly connected to the outer side of the screw 813 will move left as a whole, and correspondingly realize the synchronous left movement of the movable frame 815 connected to the right side. When the movable frame 815 moves left, the swing arm 816 transmission-connected to the vertical groove provided on the upper right side of the movable frame 815 will swing upward accordingly, and cooperate with the roller 817 connected to the left longitudinal rotation to carry out the receiving. The material plate 82 is pushed up as a whole, and the material receiving plate 82 can realize the inclined lifting activity through the cooperation of the front and rear connecting blocks 83 on the right side. In this way, the residual material pre-collected inside the material receiving plate 82 can be affected by the inclined state of the material receiving plate 82 and move toward the collecting box 5 set on the right side of the receiving platform 1 to quickly carry out the extraction and collection of the residual material, without the need for manual collection, thereby improving the automation of residual material collection. If it is necessary to reset the material receiving plate 82, it is only necessary to reversely drive the screw rod 813 to move the connecting pipe 814 and the moving frame 815 to the right, so that the swing arm 816 can be swung down and reset as a whole to release the lifting effect of the material receiving plate 82, and the material receiving plate 82 can realize the self-falling reset activity under the influence of its own gravity, so as to re-fit horizontally to the upper end of the shell body 811, and perform the residual material pre-collection activity again, thereby achieving the advantages of one-time lifting, dumping and collection of the residual material of plastic products;

In order to prevent the residual material from being easily dropped when the residual material is tilted and guided, a pushing assembly 85 is provided on the left side of the receiving plate 82 to assist in guiding the attached residual material. That is, the moving block 8558 provided inside the locking structure 855 is pulled to the left in advance, so that the moving block 8558 cooperates with the connecting shaft 8556 plugged in horizontally on the right side to extend. In this way, the limiting effect of the limiting shaft 8559 and the semi-arc groove on the left side of the receiving plate 82 can be released. Secondly, when the connecting shaft 8556 moves to the left, the connecting shaft 8556 will be pushed to the left. The second compression spring 8557 provided on the outside of the shaft 8556 is compressed, so that the second compression spring 8557 can rebound, and the moving block 8558 and the connecting shaft 8556 are quickly and automatically reset. When the connecting shaft 8556 is away from the semi-arc groove opened on the left side of the receiving plate 82, the moving block 8558 can be lifted up and rotated 90 degrees counterclockwise as a whole, so that the moving block 8558 drives the rotating block 8555 connected to the upper end of the plug-in shaft 8552 to be lifted and rotated synchronously. In this way, the locking structure 855, which was originally in a lateral limit state, will be adjusted to a longitudinal straight line state. Secondly, the rotating block 855 When the plug-in shaft 8552 is moved upward, the entire plug-in shaft 8552 is pulled upward to compress the first compression spring 8553 connected to the outer side of the lower end of the plug-in shaft 8552. As a result, after the locking structure 855 is adjusted to the longitudinal state, the plug-in shaft 8552 can be released to make the first compression spring 8553 rebound and the entire plug-in shaft 8552 can be pulled downward. In this way, the rotating block 8555 can synchronously drive the moving block 8558 to move downward, so that the limiting shaft 8559 vertically plugged in the moving block 8558 is inserted into the scraper 851, so as to realize the unlocking and collection of the entire locking structure 855. Then, the worker The operator can perform horizontal pushing activities by holding the pull shaft 854 provided on the upper end of the limit block 853. To this end, the scraper 851 slidably installed inside the material receiving plate 82 will be moved horizontally to perform horizontal pushing to assist in the removal of the residual material attached to the inside of the material receiving plate 82. At the same time, the brush layer 852 adhered and fixed to the bottom of the scraper 851 can improve the scraping and removal effect of the attached residual material, and reduce the occurrence of the phenomenon that the relatively firm residual material is difficult to assist in the removal, thereby achieving the advantage of auxiliary horizontal pushing and assisting in the removal of the residual material collected inside the material receiving plate 82, thereby accelerating the efficiency of residual material collection.

The utility model provides a cutting waste material collection platform, which is provided with a convenient material guiding device 8, that is, a material receiving plate 82 can realize the pre-collection activity of waste materials, and the movable frame 815 can be moved horizontally through the threaded transmission of the screw rod 813 and the connecting pipe 814, and the swing arm 816 can swing up and down, so that the swing arm 816 can assist in lifting the material receiving plate 82, so that the material receiving plate 82 is tilted as a whole, and the collected waste materials are automatically led out and collected, and the waste materials are collected and matched at one time, thereby achieving the advantage of one-time lifting, dumping and collection of waste materials of plastic products, and a pushing component 85 is provided, that is, a fast release locking structure 855 is locked with the support of the material receiving plate 82, so that the scraper 851 can move horizontally smoothly along the inside of the material receiving plate 82, to assist in pushing the attached waste materials horizontally, and improve the waste material leading out and collection fully, thereby achieving the advantage of assisting horizontal pushing and leading out of the waste materials collected inside the material receiving plate 82, and accelerating the waste material collection efficiency.

The above description is only a preferred example of the utility model and is not intended to limit the utility model. Although the utility model is described in detail with reference to the above embodiments, those skilled in the art can still modify the technical solutions recorded in the above embodiments or replace some of the technical features therein by equivalents. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the utility model shall be included in the protection scope of the utility model.

Claims (8)

1. The utility model provides a cutting clout collecting table, includes accepts platform (1), accept platform (1) lower extreme left side and install motor (2), motor (2) front side transmission is connected with belt drive spare (3), belt drive spare (3) upper end right side is connected with cutting blade (4), accept platform (1) right side and be equipped with collecting box (5), and collecting box (5) bottom four corners all rotate and be connected with universal wheel (6), all meet with fastener (7) in collecting box (5) left side front and back, and both ends fastening connection around fastener (7) and accepting platform (1) right side;

The method is characterized in that: the automatic feeding device is characterized by further comprising a convenient material guiding device (8) arranged at the upper end of the receiving table (1), wherein the convenient material guiding device (8) comprises a lifting assembly (81) arranged inside the upper end of the receiving table (1), a material receiving plate (82) arranged at the top of the lifting assembly (81), connecting blocks (83) connected to the two ends on the right side of the material receiving plate (82), a chamfer face (84) arranged on the rear side of the material receiving plate (82) and a material pushing assembly (85) arranged inside the left side of the material receiving plate (82).

2. A cutting matrix collection station as claimed in claim 1, wherein: the lifting assembly (81) comprises a shell (811) arranged inside the upper end of the bearing table (1), a servo motor (812) arranged on the left side of the shell (811), a screw (813) connected to the right side of the servo motor (812), a connecting pipe (814) connected to the right side of the screw (813) in a threaded mode, a movable frame (815) fastened to the right side of the connecting pipe (814), a swing arm (816) connected to the right side of the movable frame (815) in a transmission mode, and a roller (817) connected to the left side of the swing arm (816) in a rotation mode, wherein the outer side of the roller (817) abuts against the bottom of the material receiving plate (82).

3. A cutting matrix collection station as claimed in claim 1, wherein: the pushing assembly (85) comprises a scraping plate (851) arranged in the left side of the receiving plate (82), a brush layer (852) connected to the lower end of the scraping plate (851), a limiting block (853) fixedly arranged on the front side of the scraping plate (851), a pull shaft (854) inserted in the limiting block (853) and a locking structure (855) arranged in the middle of the upper end of the scraping plate (851), and the scraping plate (851) is propped against the left side of the receiving plate (82) to be locked through the locking structure (855) arranged in the middle of the upper end.

4. A cutting matrix collection station according to claim 3, wherein: the locking structure (855) comprises a positioning cylinder (8551) arranged inside the scraping plate (851), a plug-in shaft (8552) inserted into the positioning cylinder (8551), a first pressure spring (8553) arranged outside the plug-in shaft (8552), a connecting ring (8554) sleeved outside the plug-in shaft (8552) and propped against the upper end of the first pressure spring (8553), a rotating block (8555) arranged at the upper end of the plug-in shaft (8552), a connecting shaft (8556) inserted into the left side of the rotating block (8555), a second pressure spring (8555 7) arranged outside the connecting shaft (8556), a moving block (8558) fastened on the left side of the connecting shaft (8558) and a limiting shaft (8559) inserted into the left side of the moving block (8558), wherein the moving block (8558) can prop against the left side of the material receiving plate (82) through the limiting shaft (8559) arranged on the left side.

5. A cutting matrix collection station as claimed in claim 1, wherein: the material receiving plate (82) is rotationally connected with the connecting block (83) in front of and behind the right side, and the right side of the material receiving plate (82) is arranged in an unsealed opening shape.

6. A cutting matrix collection station as claimed in claim 2, wherein: the movable frame (815) is integrally arranged in an inverted L-shaped frame shape, and vertical grooves are correspondingly formed in the upper end of the right side of the movable frame (815).

7. A cutting matrix collection station as claimed in claim 2, wherein: the swing arm (816) is rotatably connected with the upper end inside the shell (811), and the front end on the right side of the swing arm (816) is in transmission connection with a vertical groove formed in the upper end on the right side of the movable frame (815).

8. A cutting matrix collection station according to claim 3, wherein: the scraping plate (851) is longitudinally and slidably arranged in the material receiving plate (82), and the scraping plate (851) is slidably connected with the upper end of the front side of the material receiving plate (82) through a limiting block (853) arranged at the upper end of the front side.