CN216679769U

CN216679769U - Section bar cuts open mould

Info

Publication number: CN216679769U
Application number: CN202123032955.XU
Authority: CN
Inventors: 张清淼; 黄兵
Original assignee: Zhengzhou Yucheng Mould Co ltd
Current assignee: Zhengzhou Yucheng Mould Co ltd
Priority date: 2021-12-03
Filing date: 2021-12-03
Publication date: 2022-06-07
Anticipated expiration: 2031-12-03

Abstract

The utility model relates to a section bar cutting and opening die which comprises a punch, a punch driving structure and a fixed base, wherein the punch drives the punch to move up and down; the fixed base is fixed with a female die, the female die is used for supporting the section bar and is provided with a through groove extending up and down, and when the punch moves up and down, the cutting edge part of the punch is matched with the through groove so as to cut a notch on the section bar. The section bar notch cutting die is not provided with a die core, and the problem that the die core of the existing notch cutting die is easy to break due to poor strength is solved. In addition, the arrangement of the through groove enables waste materials generated after the section bar is cut to flow out through the through groove, the waste materials are not easy to accumulate in a cavity of the section bar, and the waste materials are convenient to clean.

Description

Section bar cutting die

Technical Field

The utility model relates to a section bar cutting and notching die, and belongs to the field of section bar processing equipment.

Background

At present, when cutting the opening of the traditional section bar with a closed cross section, the opening cutting die shown in fig. 1 is adopted, the opening cutting die comprises a fixing base 2, a lower die plate 12 is fixed on the lower side of the fixing base 2, a die core 22 and an upper die plate 11 are fixed on the upper side of the fixing base 2, a fixing seat 24 for fixing a punch 1 is arranged on the upper die plate 11, when the section bar 4 is cut by a press, the die core 22 is inserted into a cavity of the section bar 4, a pressing block 23 is placed on the section bar 4, the press presses the upper die plate 11 downwards, and the upper die plate 11 moves downwards to drive the punch 1 to move downwards to cut the opening of the section bar 4.

Because the mold core 22 is arranged in a cantilever manner, the weight of the mold core 22 is large, and when the mold core 22 is used, the mold core 22 is easily broken due to the stamping acting force of the pressing block 23 and the punch 1; and because the shape of section bar 4 is different, the die core 22 needs to guarantee to be unanimous with the die cavity shape of section bar 4, leads to the die core 22 difficult processing, and, when section bar 4 has abrupt change region, the intensity of die core 22 also can further reduce, is changeed the fracture. In addition, waste materials generated after the section 4 is cut are easy to accumulate in the cavity of the section 4 and are not easy to clean.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide a section bar cutting and notching die, which is used for solving the problems that the existing cutting and notching die is low in die core strength, easy to break and difficult to clean waste materials.

The technical scheme of the section bar cutting die is as follows:

the section bar cutting and notching die comprises a punch, a punch driving structure and a fixed base, wherein the punch drives the punch to move up and down; the fixed base is fixed with a female die, the female die is used for supporting the section bar and is provided with a through groove extending up and down, and when the punch moves up and down, the cutting edge part of the punch is matched with the through groove so as to cut a notch on the section bar.

Has the advantages that: compared with the existing notch cutting die, the notch cutting die does not have a die core, and solves the problem that the die core of the existing notch cutting die is easy to break due to poor strength. When the punching head is used, the punching head is not pressed by other objects such as a pressure block, a section bar and the like, the punching head is not easy to break, the shape of the punching head does not need to be kept the same as that of the section bar, and the punching head is not influenced by the shape of the section bar. In addition, the arrangement of the through groove enables waste materials generated after the section bar is cut to flow out through the through groove, the waste materials are not easy to accumulate in a cavity of the section bar, and the waste materials are convenient to clean.

Furthermore, the punch driving structure comprises a guide block, the guide block is provided with a guide channel extending up and down, a floating block and an elastic piece are arranged in the guide channel, the floating block is in guide sliding fit with the guide channel, the main body part of the punch is fixed on the floating block, and the elastic piece applies upward elastic force to the floating block so as to reset the floating block.

Has the advantages that: the guide block and the floating block are adopted to guide the movement of the punch, so that the guide effect on the punch is better, the structure is simple, and the processing is convenient.

Furthermore, the punch driving structure further comprises a limit screw, the limit screw penetrates through the elastic part from bottom to top and is fixed with the floating block, and the head of the limit screw is used for being matched with the fixed base in a blocking mode so as to limit the upward resetting limit of the punch.

Has the advantages that: the limit screw is adopted to limit the upward resetting limit of the punch, the structure is simple, and the installation is convenient.

Furthermore, the punch driving structure further comprises a pressing block and an upper template, the pressing block is fixed with the main body part of the punch, and the upper template is in press fit with the pressing block to apply downward acting force to the pressing block so that the punch cuts the section.

Has the advantages that: because the punch is assembled in the guide block in a guiding mode, the upper die plate and the pressing block are in top pressing fit, the upper die plate and the pressing block do not need to be fixed, and the structure of the punch driving structure is simple.

Furthermore, the section bar cutting die also comprises a lower template, the lower template is fixedly arranged on the fixed base, a limiting column is fixed on the lower template, and the limiting column is used for being matched with the upper template in a stopping way when the upper template moves downwards so as to limit the moving limit of the upper template moving downwards.

Has the advantages that: the limiting column is adopted to limit the moving limit of the upper template moving downwards, the structure is simple, and the processing is convenient.

Further, the section bar cutting and opening mold further comprises a lower template, a guide structure is arranged between the lower template and the upper template, the guide structure comprises a guide pillar arranged on one of the lower template and the upper template and a guide sleeve arranged on the other of the lower template and the upper template, the guide pillar and the guide sleeve are in guide sliding fit, and the guide structure further comprises a buffer cylinder sleeved on the guide pillar.

Has the advantages that: the guide sleeve can guide the movement of the upper template by sliding fit with the guide pillar, and the guide of the punch moving up and down is mainly realized through the guide block and the floating block, so that the requirement of the section bar cutting and opening die on the guide sleeve and the guide pillar is low, the processing is simpler, and the cost can be reduced. In addition, the buffer column can play a role in buffering and protecting the section bar cutting die.

Further, the section bar cutting and opening die further comprises a waste material box for containing waste materials, wherein the fixing base is provided with a containing groove for containing the waste material box and a blanking channel communicated with the through groove and extending up and down, and the blanking channel is intersected with the containing groove.

Has the advantages that: waste material box is installed through the holding tank that sets up on the unable adjustment base, can reduce the holistic size of the mould that opens is cut to the section bar, and then has reduced the area that the mould was cut to the section bar.

Furthermore, the female die is provided with female die positioning blocks which are arranged on two sides of the section bar, and the female die positioning blocks are used for positioning the end part to be cut of the section bar.

Has the advantages that: the female die positioning block is arranged at the female die, so that the end part of the section can be positioned, and the precision of the punch when cutting is improved.

Further, the section bar cutting-notch die further comprises a supporting plate for supporting the section bar, and a positioning structure for positioning the section bar is arranged on the supporting plate.

Has the advantages that: the backup pad plays the supporting role to the section bar, prevents that the unsettled condition of arranging and appearing the location inaccurate of section bar, the setting of location structure in the backup pad for the position precision of section bar is higher, and the precision is higher when the drift is cut open the section bar.

Furthermore, the positioning structure comprises supporting plate positioning blocks arranged on two sides of the section bar and positioning pins which are used for penetrating into the process holes of the section bar up and down.

Has the advantages that: the positioning structure has the advantages that the supporting plate positioning blocks and the positioning pins are adopted to position the sectional materials, the positioning pins can utilize the own process holes of the sectional materials, the positioning structure in the length direction of the sectional materials is not required to be additionally arranged, and the structure is simple and convenient to operate.

Drawings

FIG. 1 is a schematic structural diagram of a conventional cutting die;

FIG. 2 is a schematic structural view of a section bar slit die in embodiment 1 of the present invention;

FIG. 3 is a top view of FIG. 2;

fig. 4 is a schematic structural view of the section bar notch-cutting die of the present invention in embodiment 1 after the upper die plate is hidden;

FIG. 5 is a top view of FIG. 4;

FIG. 6 is a cross-sectional view taken along line A-A of FIG. 5 (with hidden structures such as profiles, support plates, etc.);

fig. 7 is a schematic structural view of a punch in embodiment 1 of the section bar slitting die of the present invention.

Description of reference numerals: 1. a punch; 101. a body portion; 102. a cutting edge portion; 2. a fixed base; 201. a blanking channel; 202. accommodating grooves; 3. a female die; 301. a through groove; 4. a section bar; 5. a guide block; 501. a guide channel; 6. a slider; 7. a spring; 8. a limit screw; 9. punching a limiting screw; 10. briquetting; 11. mounting a template; 12. a lower template; 13. a guide sleeve; 14. a guide post; 15. a buffer cylinder; 16. a limiting column; 17. a waste material box; 18. a support plate; 19. positioning pins; 20. a supporting plate positioning block; 21. a female die positioning block; 22. a mold core; 23. a compression block; 24. a fixed seat.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is described in further detail below with reference to the accompanying drawings and embodiments. It should be understood that the detailed description and specific examples, while indicating the preferred embodiment of the utility model, are intended for purposes of illustration only and are not intended to limit the scope of the utility model. The components of embodiments of the present invention generally described and illustrated in the figures herein may be arranged and designed in a wide variety of different configurations.

Thus, the following detailed description of the embodiments of the present invention, presented in the figures, is not intended to limit the scope of the utility model, as claimed, but is merely representative of selected embodiments of the utility model. All other embodiments, which can be derived by a person skilled in the art from the embodiments of the present invention without making any creative effort, shall fall within the protection scope of the present invention.

It is to be noted that, in the embodiments of the present invention, relational terms such as "first" and "second", and the like, which may be present in the embodiments, are only used for distinguishing one entity or operation from another entity or operation, and do not necessarily require or imply that such actual relationships or orders between the entities or operations exist. Also, terms such as "comprises," "comprising," or any other variation thereof, which may be present, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, the appearances of the phrase "comprising an … …" or similar limitation may be present without necessarily excluding the presence of additional identical elements in the process, method, article, or apparatus that comprises the same elements.

In the description of the present invention, unless otherwise explicitly specified or limited, terms such as "mounted," "connected," and "connected" that may be present are to be construed broadly, e.g., as a fixed connection, a releasable connection, or an integral connection; can be mechanically or electrically connected; either directly or indirectly through intervening media, or may be interconnected between two elements. The specific meanings of the above-mentioned terms in the present invention can be understood by those skilled in the art through specific situations.

In the description of the utility model, unless otherwise explicitly specified or limited, the term "provided" should be understood broadly, for example, the object provided may be a part of the body, or may be arranged separately from the body and connected to the body, which may or may not be detachable. The specific meaning of the above terms in the present invention can be understood by those skilled in the art from specific situations.

The present invention will be described in further detail with reference to examples.

Embodiment 1 of the section bar cutting die provided in the present invention:

as shown in fig. 2 to 7, the section bar cutting-and-notching die comprises a punch 1, a punch driving structure, a fixed base 2 and a female die 3 fixed on the fixed base 2 and used for supporting a section bar 4, when the section bar cutting-and-notching die is used for cutting and notching the section bar 4, the pressure of a press acts on the punch driving structure, and the punch driving structure drives the punch 1 to move up and down so as to cut a notch on the section bar 4. In the embodiment, 6 punches 1, punch driving structures, the fixing base 2, and the dies 3 fixed on the fixing base 2 for supporting the section bar 4 are arranged at intervals, and the structures thereof are the same, and only one of the punch driving structures is described. The structure of the punch 1 is as shown in fig. 7, the punch 1 comprises a body part 101 and a cutting edge part 102 arranged in an overhanging way, a punch driving structure is used for cooperating with the body part 101 to drive the punch 1 to move up and down, and the overhanging direction of the cutting edge part 102 of the punch 1 is perpendicular to the moving direction of the punch 1. As shown in fig. 6, the die 3 has a through groove 301 extending vertically, when the punch 1 cuts the profile 4, the cutting edge portion 102 of the punch 1 needs to be inserted into the cavity of the profile 4 first, and when the punch 1 moves vertically, the cutting edge portion 102 is engaged with the through groove 301 to cut a notch in the profile 4. The scraps cut by the punch 1 flow out through the through groove 301, and the scraps are not easily accumulated in the cavity of the profile 4, thereby facilitating the cleaning of the scraps.

The punch driving structure comprises a guide block 5, a pressing block 10 and an upper die plate 11, wherein the guide block 5 is fixed on the fixing base 2, the guide block 5 is provided with a guide channel 501 extending up and down, a floating block 6 and an elastic piece are arranged in the guide channel 501, the floating block 6 is in guide sliding fit with the guide channel 501, a main body part 101 of the punch 1 is fixed on the floating block 6, and the pressing block 10 is located on the upper side of the punch 1 and fixed with the main body part 101 of the punch 1. When the section bar cutting and notching die cuts and notches the section bar 4, the pressure of the pressing machine acts on the upper die plate 11, the upper die plate 11 drives the pressing block 10 to move downwards, and the pressing block 10 moving downwards drives the punch 1 to move downwards to cut and notch the section bar 4. In this embodiment, the elastic member is a spring 7, and the spring 7 is used for providing an upward elastic force to the slider 6 to reset the slider 6, and thus the punch 1. In other embodiments, the elastic member may be a rubber block or the like.

It should be noted that, in this embodiment, the upper die plate 11 and the pressing block 10 are only in a press fit relationship, and it is not necessary to fix the upper die plate 11 and the pressing block 10.

The section bar cutting and notching die further comprises a lower template 12, and the lower template 12 is arranged on the lower side of the fixing base 2 and fixed with the fixing base 2. A guide structure is arranged between the upper template 11 and the lower template 12, the guide structure comprises a guide sleeve 13 fixed on the upper template 11 and a guide post 14 fixed on the lower template 12, and the guide sleeve 13 and the guide post 14 are in guide sliding fit to guide the upper template 11. As the punch 1 is guided mainly by the guide sliding fit of the guide block 5 and the floating block 6, the section bar cutting die has lower requirement on the guide precision of the guide sleeve 13 and the guide pillar 14, the processing is simpler, and the cost can be reduced. In addition, the guide structure further comprises a buffer cylinder 15 sleeved on the guide pillar 14, in this embodiment, the buffer cylinder 15 is made of a polyurethane material, the buffer cylinder 15 has elasticity and can play a buffer role and protect a section cutting die, the buffer cylinder 15 can also provide elasticity for the guide sleeve 13, and the upper die plate 11 is reset after the press removes pressure.

As shown in fig. 4 and 5, a limiting column 16 is fixed on the lower template 12, and the limiting column 16 is used for being matched with the upper template 11 in a stopping way when the upper template 11 moves downwards so as to limit the moving limit of the downward movement of the upper template 11. When the upper die plate 11 moves downwards to contact with the limiting columns 16 for stopping, the press removes the pressure applied on the upper die plate 11, and the upper die plate 11 is reset upwards along with the pressure.

In order to limit the limit of upward reset of the punch 1, the punch driving structure further comprises a limit screw 8, a limit screw through hole 9 is formed in the lower die plate 12, the limit screw 8 penetrates through the limit screw through hole 9 from bottom to top and penetrates through the spring 7 to be fixed with the floating block 6, when the spring 7 applies elasticity to the floating block 6 to enable the punch 1 to reset upwards, the head of the limit screw 8 is in blocking fit with the fixing base 2, and therefore limitation of the limit of upward reset of the punch 1 is achieved. The limit screw 8 is adopted to limit the upward reset limit of the punch 1, the structure is simple, and the installation is convenient.

As shown in fig. 6, the mold for cutting the section bar is further provided with a waste material box 17 for containing waste material, specifically, the fixing base 2 is provided with an accommodating groove 202 for accommodating the waste material box 17 and a vertically extending blanking channel 201 communicated with the through groove 301, and the blanking channel 201 intersects with the accommodating groove 202. Waste material box 17 is placed through holding tank 202 that sets up on unable adjustment base 2, can reduce the holistic size of section bar cut open the mould, and then has reduced the area that the section bar cut open the mould. The punch 1 cuts the waste materials generated by cutting the section bar 4, the waste materials can flow through the through groove 301 and the blanking channel 201 and finally flow into the waste material box 17, and the working personnel can clean the waste materials in the waste material box 17 regularly, so that the punching machine is convenient and fast.

More specifically, a supporting plate 18 for supporting the profile 4 is fixed on the female die 3, and a positioning structure for positioning the supporting plate 18 is arranged on the supporting plate 18. The positioning structure comprises positioning pins 19 and supporting plate positioning blocks 20 arranged on two sides of the section bar 4, and the positioning pins 19 are used for penetrating into the fabrication holes of the section bar 4 from bottom to top. In addition, the female die 3 is provided with female die positioning blocks 21 which are arranged on two sides of the section bar 4, and the female die positioning blocks 21 are used for positioning the end part to be cut of the section bar 4. The positioning structure for positioning the section bar 4 is arranged, so that the position precision of the section bar 4 is higher, and the precision of the punch 1 when the section bar 4 is cut is higher.

It should be noted that, the structures of all parts of the section bar cutting die are fixed by bolts or screws.

The working process of the section bar cutting and notching die is as follows:

the method comprises the steps of firstly placing a section 4 to be cut into a notch on a supporting plate 18, positioning two sides of the section 4 through a female die positioning block 21 and a supporting plate positioning block 20, positioning the section 4 in the extending direction of the section 4 through a positioning pin 19, sleeving one end of the section 4 outside a cutting edge part 102 of a punch 1 when the section 4 is placed on the supporting plate 18, then applying pressure to an upper die plate 11 by a press, downwards jacking the press block 10 by the upper die plate 11, driving the punch 1 to move downwards by the press block 10, cutting the cutting edge part 102 of the punch 1 into the notch on the section 4, and allowing waste materials cut by the punch 1 to fall into a waste material box 17. After the press removes the pressure on the upper die plate 11, the spring 7 applies elasticity to the floating block 6 to enable the floating block 6 to move upwards so as to enable the punch 1 to reset, the upper die plate 11 resets upwards under the action of the upward acting force of the pressing block 10 and the elasticity of the buffer cylinder 15, and the cutting of the section bar cutting die is completed.

It should be noted that the material of the cushion cylinder 15 may be selected from existing materials in practical use, and the cushion cylinder may be made of any material that has elasticity and can cushion.

The embodiment 2 of the section bar cutting and notching die is different from the embodiment 1 in that the main body part of the punch is clamped between the pressing block and the floating block, the main body part of the punch is not fixed with the pressing block and the floating block, the main body part of the punch is in guiding interactive fit with the guide channel of the guide block, when the press presses the upper die plate, the upper die plate presses the pressing block to move downwards, and then the pressing block presses the punch to move downwards to cut and notch the section bar.

In embodiment 3 of the section bar cutting and notching die, which is different from embodiment 1, a sliding groove is formed in the inner side wall of a guide channel, correspondingly, a sliding rail in guide sliding fit with the sliding groove is arranged on a floating block, the floating block is in guide sliding fit with the guide channel through the guide sliding fit of the sliding groove and the sliding rail, and the sliding rail is in stop fit with the upper groove wall of the sliding groove when the floating block moves upwards so as to limit the limit of upward resetting of a punch.

In embodiment 4 of the section bar slitting die of the present invention, the upper die plate and the press block are fixed by bolts, which is different from embodiment 1.

The embodiment 5 of the section bar cutting and notching die is different from the embodiment 1 in that a guide pillar is fixed on an upper die plate, a guide sleeve is fixed on a lower die plate, the guide sleeve is in guide sliding fit with the guide pillar, and a buffer cylinder is sleeved on the guide pillar.

In embodiment 6 of the section bar cutting and notching die, the lower die plate is not provided with a limiting column, and when the upper die plate moves downwards, a guide sleeve on the upper die plate is matched with the guide column on the lower die plate in a stopping way, so that the downward movement limit of the upper die plate is limited.

The embodiment 7 of the section bar cutting and notching die is different from the embodiment 1 in that the waste material box is fixed on the lower side of the lower template, the fixed base and the lower template are provided with the blanking channel which is communicated with the through groove and extends up and down, and the blanking channel is communicated with the waste material box.

Embodiment 8 of the section bar cutting-off die of the present invention is different from embodiment 1 in that the positioning structure on the support plate only includes a plurality of positioning pins, and the plurality of positioning pins are arranged at intervals in the extending direction of the section bar to position the section bar.

The above description is only a preferred embodiment of the present invention, and not intended to limit the present invention, the scope of the present invention is defined by the appended claims, and all structural changes that can be made by using the contents of the description and the drawings of the present invention are intended to be embraced therein.

Claims

1. The section bar cutting and notching die comprises a punch head (1), a punch head driving structure and a fixed base (2), wherein the punch head driving structure drives the punch head (1) to move up and down, the punch head driving structure is characterized in that the punch head (1) comprises a main body part (101) and a cutting edge part (102), the punch head driving structure is matched with the main body part (101) to drive the punch head (1) to move up and down, the cutting edge part (102) is arranged in a hanging mode to extend into a cavity of a section bar (4) when in use, and the hanging direction of the cutting edge part (102) is perpendicular to the moving direction of the punch head (1); a concave die (3) is fixed on the fixed base (2), the concave die (3) is used for supporting the section (4), the concave die (3) is provided with a through groove (301) extending up and down, and when the punch (1) moves up and down, the cutting edge part (102) of the punch (1) is matched with the through groove (301) so as to cut a notch on the section (4).

2. The section bar cutting-notch die according to claim 1, wherein the punch driving structure comprises a guide block (5), the guide block (5) is provided with a guide channel (501) extending up and down, a floating block (6) and an elastic piece are arranged in the guide channel (501), the floating block (6) is in guide sliding fit with the guide channel (501), the main body part (101) of the punch (1) is fixed on the floating block (6), and the elastic piece exerts upward elastic force on the floating block (6) to reset the floating block (6).

3. The section bar cutting-notch die according to claim 2, wherein the punch driving structure further comprises a limit screw (8), the limit screw (8) penetrates through the elastic piece from bottom to top and is fixed with the floating block (6), and the head of the limit screw (8) is used for being matched with the fixing base (2) in a stopping manner so as to limit the limit of upward reset of the punch (1).

4. The section bar slitting die according to claim 2 or 3, wherein the punch driving structure further comprises a pressing block (10) and an upper die plate (11), the pressing block (10) is fixed with the main body part (101) of the punch (1), and the upper die plate (11) is used for being in press fit with the pressing block (10) so as to apply a downward acting force to the pressing block (10) to slit the section bar (4) by the punch (1).

5. The section bar cutting-notch die according to claim 4, characterized in that the section bar cutting-notch die further comprises a lower die plate (12), the lower die plate (12) is fixedly arranged on the fixed base (2), a limiting column (16) is fixedly arranged on the lower die plate (12), and the limiting column (16) is used for being matched with the upper die plate (11) in a stopping manner when the upper die plate (11) moves downwards so as to limit the moving limit of the upper die plate (11) moving downwards.

6. The section bar cutting-notch die according to claim 4, characterized in that the section bar cutting-notch die further comprises a lower die plate (12), a guide structure is arranged between the lower die plate (12) and the upper die plate (11), the guide structure comprises a guide pillar (14) arranged on one of the lower die plate (12) and the upper die plate (11) and a guide sleeve (13) arranged on the other, the guide pillar (14) is in guide sliding fit with the guide sleeve (13), and the guide structure further comprises a buffer cylinder (15) sleeved on the guide pillar (14).

7. A sectional material cutting-open die according to any one of claims 1 to 3, characterized in that the sectional material cutting-open die further comprises a waste material box (17) for containing waste materials, the fixing base (2) is provided with a containing groove (202) for containing the waste material box (17) and a blanking channel (201) which is communicated with the through groove (301) and extends up and down, and the blanking channel (201) is intersected with the containing groove (202).

8. A section bar notch-cutting die according to any one of claims 1-3, characterized in that the female die (3) is provided with female die positioning blocks (21) for being arranged on both sides of the section bar (4), and the female die positioning blocks (21) are used for positioning the end of the section bar (4) to be notch-cut.

9. A profile slit die according to any one of claims 1-3, characterized in that the profile slit die further comprises a support plate (18) for supporting the profile (4), and the support plate (18) is provided with a positioning structure for positioning the profile (4).

10. A mould according to claim 9, wherein the locating structure comprises support plate locating blocks (20) arranged on both sides of the profile (4), and further comprises locating pins (19), and the locating pins (19) are used for penetrating into the fabrication holes of the profile (4) up and down.