CN221290660U

CN221290660U - Stainless steel tray production grinding device

Info

Publication number: CN221290660U
Application number: CN202323087486.0U
Authority: CN
Inventors: 金少华; 金长华; 郑英好; 黎诚; 郑晓; 何建敏
Original assignee: Wenzhou Jiakai Industry Co ltd
Current assignee: Wenzhou Jiakai Industry Co ltd
Priority date: 2023-11-14
Filing date: 2023-11-14
Publication date: 2024-07-09
Anticipated expiration: 2033-11-14

Abstract

The utility model belongs to the technical field of stainless steel tray processing, in particular to a stainless steel tray production polishing device, which comprises a workbench; a processing table is arranged in the middle of the workbench; a bracket is fixedly connected to the top of the workbench; the top of the bracket is fixedly connected with a first hydraulic cylinder; the output end of the first hydraulic cylinder is fixedly connected with a first connecting plate; the bottom of the first connecting plate is fixedly connected with a first motor; the output end of the first motor is fixedly connected with a screw rod; the middle part of the screw rod is connected with a sliding block through a screw rod nut pair; the bottom of the sliding block is fixedly connected with a second motor; the output end of the second motor is provided with a polishing disc; the middle part of the bracket is fixedly connected with a second hydraulic cylinder; the output end of the second hydraulic cylinder is fixedly connected with a push plate; through the setting of first motor and second pneumatic cylinder, can make the polishing disc change in the position of polishing on the stainless steel tray, realize polishing to stainless steel tray different positions.

Description

Stainless steel tray production grinding device

Technical Field

The utility model relates to the technical field of stainless steel tray processing, in particular to a stainless steel tray production polishing device.

Background

The main components of the stainless steel tray are nickel, iron and chromium, and the stainless steel tray is a common kitchen accessory, is a good helper in our life, and can easily hold the prepared food to other positions with the help of the stainless steel tray, so that the stainless steel tray is quite common in families, restaurants, canteens and other places.

The stainless steel tray needs to be polished before being put into use, and the uneven surface of the stainless steel tray substrate can be polished smoothly by polishing, and common polishing modes include grinding wheel polishing, abrasive belt polishing, vibration polishing and the like.

When the prior art polishes the stainless steel tray, the stainless steel tray is usually fixed at one position, and then the positions of the stainless steel tray are manually changed to polish the different positions of the stainless steel tray, so that human resources are wasted greatly.

Therefore, a stainless steel tray production polishing device is proposed to solve the above problems.

Disclosure of utility model

In order to overcome the defects in the prior art and solve at least one technical problem in the background art, the utility model provides a stainless steel tray production polishing device.

The technical scheme adopted for solving the technical problems is as follows: the utility model relates to a stainless steel tray production polishing device, which comprises a stainless steel tray production polishing device and a polishing device, wherein the stainless steel tray production polishing device comprises a workbench; a processing table is arranged in the middle of the workbench; a plurality of jacks are formed in the middle of the processing table; clamping plates are inserted into the jacks in a matched manner; a bracket is fixedly connected to the top of the workbench; the top of the bracket is fixedly connected with a first hydraulic cylinder; the output end of the first hydraulic cylinder is fixedly connected with a first connecting plate; the bottom of the first connecting plate is fixedly connected with a first motor; the output end of the first motor is fixedly connected with a screw rod; the middle part of the screw rod is connected with a sliding block through a screw rod nut pair; the bottom of the sliding block is fixedly connected with a second motor; the output end of the second motor is provided with a polishing disc; the middle part of the sliding block is provided with a plurality of sliding holes; a sliding rod is matched and slides in each sliding hole; the bottom end of the sliding rod is fixedly connected with a second connecting plate; a first travel hole is formed in the middle of the second connecting plate; the other end of the sliding rod is fixedly connected with the first connecting plate; the middle part of the bracket is fixedly connected with a second hydraulic cylinder; the output end of the second hydraulic cylinder is fixedly connected with a push plate; through the setting of first motor and second pneumatic cylinder, can make the polishing disc change in the position of polishing on the stainless steel tray, realize polishing to stainless steel tray different positions, through setting up the processing platform, through the cooperation of jack and splint on the processing platform, can carry out the centre gripping to the stainless steel tray of equidimension fixedly, improve the stability of polishing in-process stainless steel tray.

Preferably, the middle part of the second connecting plate is connected with a plurality of spring rods in a sliding way; the bottom end of the spring rod is fixedly connected with a pressing plate; the top of the pressing plate is fixedly connected with a plurality of first springs; the other end of each first spring is fixedly connected with a second connecting plate; a second stroke hole is formed in the middle of the pressing plate; through the setting of clamp plate and first spring, can make stainless steel tray receive decurrent elasticity when polishing, further improve the stability of polishing in-process stainless steel tray to cover on stainless steel tray through the clamp plate, can block the most piece that grinds off in stainless steel tray, reduce the piece and splash and float on the processing bench, and then reduce the piece that floats when carrying out the centre gripping to follow-up stainless steel tray and produce the problem of mar to its surface.

Preferably, the bottom of the second motor is fixedly connected with a sleeve; the middle part of the sleeve is fixedly connected with an annular air ejector tube through a supporting rod; a plurality of air injection holes are formed in the middle of the annular air injection pipe; each air jet hole is arranged towards the polishing disc; the middle part of the annular air jet pipe is communicated with an air duct; through on will the air duct is got to outside air supply, can make the air current flow into annular jet-propelled intraductal through the air duct to blow around polishing the dish through the fumarole, through setting up annular jet-propelled, can be when polishing the dish to stainless steel tray polishing, the dish of polishing is continuous to receive the sweeping of air current all around, makes the piece of polishing off by blowing away, reduces the accumulation of piece under polishing the dish, reduces the circumstances that appears polishing the dish and polish the piece of polishing down again, and sweeps the mill through the air current, plays the effect of cooling to polishing the dish.

Preferably, the end part of the processing table is fixedly connected with a support; the middle part of the support is connected with a plurality of limiting rods in a sliding way; a scraping plate is fixedly connected to the end part of the limiting rod; a plurality of second springs are fixedly connected between the scraping plate and the support; through the setting of second spring on the support, can make stainless steel tray receive towards the ascending elasticity of second pneumatic cylinder horizontal direction when being polished to make push pedal and scraper blade carry out the centre gripping to stainless steel tray stable, further improve stainless steel tray's stability in the process of polishing, after polishing work is accomplished simultaneously, the scraper blade can clean the surface of processing platform, improves the clean and tidy degree of processing platform.

Preferably, a groove is formed in one end, close to the bracket, of the processing table; one end of the groove is inserted with a baffle; through setting up the recess, can concentrate the piece that cleans down on the processing platform in the recess, clean the back of accomplishing, pull out the baffle from the recess, then through the opening of baffle department, sweep into the disposal bag with the piece that gathers, reduce the pollution of piece to other positions on the workstation.

Preferably, a collecting box is arranged at the bottom of the workbench; an inspection hole is formed in one side of the collecting box; through setting up the collecting box, can clean the processing platform at the scraper blade, will fall into the collecting box through the jack through the piece of jack department in, reduce the pollution of piece to ground, through the setting of inspection hole, can regularly clear up the collecting box inside, improve the inside neatly nature of collecting box.

The utility model has the advantages that:

1. According to the stainless steel tray production polishing device, the polishing positions of the polishing disc on the stainless steel tray can be changed through the arrangement of the first motor and the second hydraulic cylinder, polishing of different positions of the stainless steel tray is achieved, the stainless steel tray with different sizes can be clamped and fixed through the arrangement of the processing table and the matching of the jack and the clamping plate on the processing table, and stability of the stainless steel tray in the polishing process is improved.

2. According to the stainless steel tray production polishing device, the stainless steel tray is enabled to be subjected to downward elasticity during polishing through the arrangement of the pressing plate and the first spring, the stability of the stainless steel tray during polishing is further improved, most of polished scraps can be blocked in the stainless steel tray through the covering of the pressing plate on the stainless steel tray, the scraps are prevented from splashing and falling on the processing table, and the problem that scraps falling on the subsequent stainless steel tray during clamping on the processing table scratch the surface of the stainless steel tray is solved.

Drawings

In order to more clearly illustrate the embodiments of the utility model or the technical solutions of the prior art, the drawings which are used in the description of the embodiments or the prior art will be briefly described, it being obvious that the drawings in the description below are only some embodiments of the utility model, and that other drawings can be obtained from these drawings without inventive faculty for a person skilled in the art.

FIG. 1 is a perspective view of the present utility model;

FIG. 2 is a schematic diagram of a mating structure of a first connecting plate and a second connecting plate according to the present utility model;

FIG. 3 is a schematic diagram of a structure of the second connecting plate and the pressing plate of the present utility model;

fig. 4 is a cross-sectional view of the table.

In the figure: 1. a work table; 2. a processing table; 201. a jack; 202. a clamping plate; 3. a bracket; 4. a first hydraulic cylinder; 5. a first connection plate; 6. a first motor; 601. a screw rod; 602. a slide block; 603. a slide hole; 604. a slide bar; 7. a second motor; 701. polishing the grinding disc; 702. a sleeve; 8. a second connecting plate; 801. a first travel hole; 9. a pressing plate; 901. a second stroke hole; 902. a spring rod; 903. a first spring; 10. a second hydraulic cylinder; 101. a push plate; 11. an annular gas jet tube; 111. a gas injection hole; 112. an air duct; 12. a support; 121. a limit rod; 122. a scraper; 123. a second spring; 13. a groove; 131. a baffle; 14. a collection box; 141. checking the hole; 15. and (3) a magnet.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

As shown in fig. 1 to 2, a stainless steel tray production polishing device comprises a workbench 1; a processing table 2 is arranged in the middle of the workbench 1; a plurality of jacks 201 are formed in the middle of the processing table 2; the jack 201 is matched and inserted with a clamping plate 202; the top of the workbench 1 is fixedly connected with a bracket 3; the top of the bracket 3 is fixedly connected with a first hydraulic cylinder 4; the output end of the first hydraulic cylinder 4 is fixedly connected with a first connecting plate 5; the bottom of the first connecting plate 5 is fixedly connected with a first motor 6; the output end of the first motor 6 is fixedly connected with a screw rod 601; the middle part of the screw rod 601 is connected with a sliding block 602 through a screw rod nut pair; the bottom of the sliding block 602 is fixedly connected with a second motor 7; the output end of the second motor 7 is provided with a polishing disc 701; a plurality of sliding holes 603 are formed in the middle of the sliding block 602; a sliding rod 604 is matched and slides in each sliding hole 603; the bottom end of the sliding rod 604 is fixedly connected with a second connecting plate 8; a first stroke hole 801 is formed in the middle of the second connecting plate 8; the other end of the sliding rod 604 is fixedly connected with the first connecting plate 5; the middle part of the bracket 3 is fixedly connected with a second hydraulic cylinder 10; the output end of the second hydraulic cylinder 10 is fixedly connected with a push plate 101; during operation, place the stainless steel tray that will polish in the processing platform 2 on workstation 1, then pull out splint 202 from jack 201, according to the size of stainless steel tray, with splint 202 card fixed the stainless steel tray in suitable jack 201, start first pneumatic cylinder 4, under the promotion of first pneumatic cylinder 4, first connecting plate 5 drives the whole orientation stainless steel tray of second connecting plate 8 and remove, and make the polishing dish 701 adjust suitable polishing position, start second motor 7, polishing dish 701 is polished to the stainless steel tray promptly, then start first motor 6, make slider 602 that sets up on the lead screw 601 remove on the lead screw 601 when first motor 6 is operated, and drive polishing dish 701 and remove on the stainless steel tray, make polishing dish 701 change in the horizontal polishing position on the stainless steel tray, then start second pneumatic cylinder 10, push plate 101 drives the stainless steel tray towards the one end that keeps away from second pneumatic cylinder 10 under the promotion of second pneumatic cylinder 10, make polishing dish 701 adjust suitable polishing position, make polishing dish 701 polish to the stainless steel tray, can polish through the setting up the stainless steel tray in the jack 2 through the change in the position of stainless steel tray, can realize polishing dish 701 and change in the position through setting up on the stainless steel tray 2, the stainless steel tray is changed in the position, the stainless steel tray is set up through the jack is changed, the stainless steel tray is 2, the processing is stable is realized, the stainless steel tray is changed.

As shown in fig. 2 to 3, a plurality of spring rods 902 are slidably connected to the middle of the second connecting plate 8; the bottom end of the spring rod 902 is fixedly connected with a pressing plate 9; a plurality of first springs 903 are fixedly connected to the top of the pressing plate 9; the other end of each first spring 903 is fixedly connected with a second connecting plate 8; a second stroke hole 901 is formed in the middle of the pressing plate 9; during operation, under the promotion of first pneumatic cylinder 4, clamp plate 9 moves down along with first connecting plate 5 and second connecting plate 8 is whole, and cover on stainless steel tray, produce the extrusion with stainless steel tray, clamp plate 9 and stainless steel tray receive first spring 903 decurrent elasticity this moment, make clamp plate 9 and stainless steel tray laminating inseparable, through the setting of clamp plate 9 and first spring 903, can make stainless steel tray receive decurrent elasticity when polishing, further improve the stability of stainless steel tray in the polishing process, and cover on stainless steel tray through clamp plate 9, can block the most piece that is polished in stainless steel tray, reduce the piece splash and float on processing bench 2, and then reduce the problem that the piece that falls when carrying out the centre gripping to follow-up stainless steel tray produces the mar to its surface.

As shown in fig. 2 to 3, a sleeve 702 is fixedly connected to the bottom of the second motor 7; the middle part of the sleeve 702 is fixedly connected with an annular air jet pipe 11 through a supporting rod; the middle part of the annular air jet pipe 11 is provided with a plurality of air jet holes 111; each air injection hole 111 is arranged towards the polishing disc 701; the middle part of the annular air jet pipe 11 is communicated with an air duct 112; through on connecting air duct 112 to outside air supply, can make the air current flow into annular jet pipe 11 through air duct 112 to blow to polishing dish 701 all around through the fumarole 111 is being inclined, through setting up annular jet pipe 11, can be when polishing dish 701 is polished to the stainless steel tray, the polishing dish 701 is kept receiving the purge of air current all around, make the piece of polishing off blown away, reduce the accumulation of piece under polishing dish 701, reduce the circumstances that appears polishing dish 701 polishes the piece of polishing off again, and blow through the air current to polishing dish 701, play the effect of cooling to polishing dish 701.

As shown in fig. 1 and 4, the end of the processing table 2 is fixedly connected with a support 12; the middle part of the support 12 is connected with a plurality of limiting rods 121 in a sliding way; a scraping plate 122 is fixedly connected to the end part of the limiting rod 121; a plurality of second springs 123 are fixedly connected between the scraping plate 122 and the support 12; during operation, after the stainless steel tray is pushed to the position of the scraping plate 122 by the second hydraulic cylinder 10, the stainless steel tray extrudes the second spring 123 through the scraping plate 122, after the stainless steel tray is subjected to the elasticity of the second spring 123, the stainless steel tray is clamped and stabilized between the scraping plate 122 and the pushing plate 101, after polishing is completed, the clamping plate 202 is taken out, the scraping plate 122 is pulled, the surface of the processing table 2 can be cleaned, the stainless steel tray can be subjected to the elasticity in the horizontal direction towards the second hydraulic cylinder 10 during polishing through the arrangement of the second spring 123 on the support 12, so that the pushing plate 101 and the scraping plate 122 clamp and stabilize the stainless steel tray during polishing, the stability of the stainless steel tray in the polishing process is further improved, meanwhile, after polishing is completed, the scraping plate 122 can clean the surface of the processing table 2, residues of chips on the processing table 2 are reduced, and the flatness of the surface of the processing table 2 is improved.

As shown in fig. 1 and 4, a groove 13 is formed at one end of the processing table 2 near the bracket 3; a baffle 131 is inserted into one end of the groove 13; through setting up recess 13, can concentrate the piece that cleans down on the processing platform 2 in recess 13, clean the completion back, pull out baffle 131 from recess 13, then through the opening of baffle 131 department, sweep the piece that gathers into the disposal bag, reduce the pollution of piece to other positions on the workstation 1.

As shown in fig. 1 and 4, a collecting box 14 is arranged at the bottom of the workbench 1; an inspection hole 141 is formed on one side of the collecting box 14; through setting up collecting box 14, can clean processing platform 2 at scraper blade 122, will fall into collecting box 14 through jack 201 through the piece of jack 201 department in, reduce the pollution of piece to ground, through the setting of inspection hole 141, can regularly clear up collecting box 14 inside, improve the inside neatly nature of collecting box 14.

As shown in fig. 4, a plurality of magnets 15 are fixedly connected in the groove 13; through the setting of magnet 15, can be with the iron fillings of collecting in the recess 13 by the absorption on magnet 15, reduce the problem that should shake when stainless steel tray polishes and lead to the iron fillings of collecting in the recess 13 to be vibrated to the recess 13 outside.

During operation, a stainless steel tray to be polished is placed in the processing table 2 on the workbench 1, then the clamping plate 202 is pulled out of the jack 201, the clamping plate 202 is clamped in the proper jack 201 according to the size of the stainless steel tray to fix the stainless steel tray, the first hydraulic cylinder 4 is started, the first connecting plate 5 drives the second connecting plate 8 to integrally move towards the stainless steel tray under the pushing of the first hydraulic cylinder 4, the polishing plate 701 is adjusted to a proper polishing position, the second motor 7 is started, the polishing plate 701 polishes the stainless steel tray, the first motor 6 is started later, the sliding block 602 arranged on the screw 601 moves on the screw 601 when the first motor 6 operates, And drive the polishing disc 701 to move on the stainless steel tray, so that the polishing position of the polishing disc 701 on the stainless steel tray is changed, then the second hydraulic cylinder 10 is started, the push plate 101 drives the stainless steel tray to move towards one end far away from the second hydraulic cylinder 10 under the pushing of the second hydraulic cylinder 10, so that the longitudinal polishing position of the polishing disc 701 on the stainless steel tray is changed, the polishing position of the polishing disc 701 on the stainless steel tray is changed through the arrangement of the first motor 6 and the second hydraulic cylinder 10, the polishing of the stainless steel tray is realized at different positions, the polishing is realized through the arrangement of the processing table 2, the cooperation of the jack 201 and the clamping plate 202 on the processing table 2, The stainless steel tray with different sizes can be clamped and fixed, the stability of the stainless steel tray in the polishing process is improved, the pressing plate 9 moves downwards along with the whole first connecting plate 5 and the whole second connecting plate 8 under the pushing of the first hydraulic cylinder 4 and covers the stainless steel tray, the pressing plate 9 and the stainless steel tray are extruded and are subjected to downward elastic force of the first spring 903 at the moment, the pressing plate 9 is tightly attached to the stainless steel tray, the stainless steel tray is subjected to downward elastic force in the polishing process through the arrangement of the pressing plate 9 and the first spring 903, the stability of the stainless steel tray in the polishing process is further improved, the stainless steel tray is covered by the pressing plate 9, Most of the ground scraps can be blocked in the stainless steel tray, the scraps are reduced from splashing and falling on the processing table 2, the problem that the scraps falling when the subsequent stainless steel tray is clamped on the processing table 2 scratch the surface of the stainless steel tray is reduced, the air duct 112 is connected to an external air source, the air flow can flow into the annular air duct 11 through the air duct 112 and is obliquely blown to the periphery of the grinding disc 701 through the air duct 111, the periphery of the grinding disc 701 is continuously blown by the air flow when the grinding disc 701 grinds the stainless steel tray, the ground scraps are blown away, The accumulation of the scraps under the polishing disc 701 is reduced, the situation that the polishing disc 701 polishes the polished scraps again is reduced, the polishing disc 701 is purged through air flow, the polishing disc 701 is cooled, after the stainless steel tray is pushed to the position of the scraping plate 122 by the second hydraulic cylinder 10, the stainless steel tray extrudes the second spring 123 through the scraping plate 122, the stainless steel tray is clamped and stabilized between the scraping plate 122 and the pushing plate 101 after being subjected to the elasticity of the second spring 123, after polishing is finished, the clamping plate 202 is taken out, the scraping plate 122 is pulled, and the surface of the processing table 2 can be cleaned, Through the arrangement of the second spring 123 on the support 12, the stainless steel tray can be subjected to the elastic force towards the second hydraulic cylinder 10 in the horizontal direction when being polished, so that the push plate 101 and the scraping plate 122 can clamp and stabilize the stainless steel tray, the stability of the stainless steel tray in the polishing process is further improved, simultaneously after polishing work is completed, the scraping plate 122 can clean the surface of the processing table 2, the cleanliness of the processing table 2 is improved, the chips cleaned on the processing table 2 can be concentrated in the groove 13 through the groove 13, after cleaning is completed, the baffle 131 is pulled out from the groove 13, and then the chips pass through the opening of the baffle 131, Sweep the piece that gathers into the disposal bag, reduce the pollution of piece to other positions on the workstation 1, through setting up collecting box 14, can be when scraper blade 122 cleans processing platform 2, will fall into collecting box 14 through jack 201 through the piece of jack 201 department, reduce the pollution of piece to the ground, through the setting of inspection hole 141, can regularly clear up collecting box 14 inside, improve the inside neatness of collecting box 14.

The foregoing has shown and described the basic principles, principal features and advantages of the utility model. It will be understood by those skilled in the art that the present utility model is not limited to the embodiments described above, and that the above embodiments and descriptions are merely illustrative of the principles of the present utility model, and various changes and modifications may be made without departing from the spirit and scope of the utility model, which is defined in the appended claims.

Claims

1. A stainless steel tray production polishing device comprises a workbench (1); the method is characterized in that: a processing table (2) is arranged in the middle of the workbench (1); a plurality of jacks (201) are formed in the middle of the processing table (2); a clamping plate (202) is matched and inserted on the jack (201); a bracket (3) is fixedly connected to the top of the workbench (1); the top of the bracket (3) is fixedly connected with a first hydraulic cylinder (4); the output end of the first hydraulic cylinder (4) is fixedly connected with a first connecting plate (5); the bottom of the first connecting plate (5) is fixedly connected with a first motor (6); the output end of the first motor (6) is fixedly connected with a screw rod (601); the middle part of the screw rod (601) is connected with a sliding block (602) through a screw rod nut pair; the bottom of the sliding block (602) is fixedly connected with a second motor (7); the output end of the second motor (7) is provided with a polishing disc (701); a plurality of slide holes (603) are formed in the middle of the slide block (602); a sliding rod (604) is matched and slides in each sliding hole (603); the bottom end of the sliding rod (604) is fixedly connected with a second connecting plate (8); a first travel hole (801) is formed in the middle of the second connecting plate (8); the other end of the sliding rod (604) is fixedly connected with the first connecting plate (5); the middle part of the bracket (3) is fixedly connected with a second hydraulic cylinder (10); the output end of the second hydraulic cylinder (10) is fixedly connected with a push plate (101).

2. The stainless steel pallet producing and polishing device as set forth in claim 1, wherein: the middle part of the second connecting plate (8) is connected with a plurality of spring rods (902) in a sliding way; the bottom end of the spring rod (902) is fixedly connected with a pressing plate (9); the top of the pressing plate (9) is fixedly connected with a plurality of first springs (903); the other end of each first spring (903) is fixedly connected with a second connecting plate (8); the middle part of the pressing plate (9) is provided with a second travel hole (901).

3. The stainless steel pallet producing and polishing device as set forth in claim 2, wherein: a sleeve (702) is fixedly connected to the bottom of the second motor (7); the middle part of the sleeve (702) is fixedly connected with an annular air ejector tube (11) through a supporting rod; a plurality of air injection holes (111) are formed in the middle of the annular air injection pipe (11); each air injection hole (111) is arranged towards the polishing disc (701); the middle part of the annular air jet pipe (11) is communicated with an air duct (112).

4. A stainless steel pallet producing and polishing device as set forth in claim 3, wherein: the end part of the processing table (2) is fixedly connected with a support (12); the middle part of the support (12) is connected with a plurality of limiting rods (121) in a sliding way; a scraping plate (122) is fixedly connected to the end part of the limiting rod (121); a plurality of second springs (123) are fixedly connected between the scraping plate (122) and the support (12).

5. The stainless steel pallet producing and polishing device as set forth in claim 4, wherein: a groove (13) is formed in one end, close to the bracket (3), of the processing table (2); one end of the groove (13) is inserted with a baffle plate (131).

6. The stainless steel pallet producing and polishing device as set forth in claim 5, wherein: the bottom of the workbench (1) is provided with a collecting box (14); an inspection hole (141) is formed in one side of the collecting box (14).