CN220739812U

CN220739812U - Material pressing mechanism and laser marking equipment

Info

Publication number: CN220739812U
Application number: CN202322122412.XU
Authority: CN
Inventors: 黄昌春; 李文强; 杨建新; 朱霆; 盛辉; 杨勇; 张凯
Original assignee: Shenzhen Tete Semiconductor Equipment Co ltd
Current assignee: Shenzhen Tete Semiconductor Equipment Co ltd
Priority date: 2023-08-08
Filing date: 2023-08-08
Publication date: 2024-04-09
Anticipated expiration: 2033-08-08

Abstract

The utility model discloses a material pressing mechanism and laser marking equipment, wherein the material pressing mechanism comprises a material placing plate, a driving assembly and a material pressing piece, wherein the material placing plate is provided with a material placing surface, and the material placing surface is used for placing a material sheet; the driving component is arranged on the material placing plate; the pressing piece comprises a pressing plate and a plurality of pressing blocks, the pressing plate is arranged on one side of the material placing surface, and the pressing blocks are arranged at intervals along the length direction of the pressing plate; the output end of the driving assembly is in driving connection with the pressing plate, so that the pressing plate is driven to rotate to drive the pressing blocks to respectively press the material sheets. The scheme of the utility model is beneficial to the smooth pressing of the pressing block on the material sheet, and then ensures the precision of laser marking.

Description

Material pressing mechanism and laser marking equipment

Technical Field

The utility model relates to the technical field of laser processing equipment, in particular to a material pressing mechanism and laser marking equipment.

Background

A laser marking device, such as a two-dimensional code marking device, is used to pattern mark the web. The laser marking device comprises a laser and a pressing mechanism, wherein the pressing mechanism is used for pressing and holding the material sheet to match with the laser processing of the laser.

In the related art, the material pressing mechanism comprises a material placing plate, a rotating shaft and a plurality of pressing blocks, wherein the pressing blocks are arranged at intervals along the length direction of the rotating shaft and respectively press all areas of the material sheet along with the rotation of the rotating shaft. However, the plurality of pressing blocks are respectively and independently rotated along with the rotating shaft, so that uneven pressing is easily caused, the flattening pressing of the material sheets is not facilitated, and then the precision of laser marking is affected.

Disclosure of Invention

The utility model aims to provide a pressing mechanism, which aims to realize that a plurality of pressing blocks synchronously support and press all areas of a material sheet along with the rotation of a pressing plate, is favorable for realizing the smooth pressing of the pressing blocks on the material sheet, and further ensures the precision of laser marking.

In order to achieve the above purpose, the utility model provides a material pressing mechanism, which comprises a material placing plate, a driving assembly and a material pressing piece, wherein the material placing plate is provided with a material placing surface for placing a material sheet; the driving component is arranged on the material placing plate; the pressing piece comprises a pressing plate and a plurality of pressing blocks, the pressing plate is arranged on one side of the material placing surface, and the pressing blocks are arranged at intervals along the length direction of the pressing plate; the output end of the driving assembly is in driving connection with the pressing plate, so that the pressing plate is driven to rotate to drive the pressing blocks to respectively press the material sheets.

Optionally, the pressing block comprises a connecting part and a pressing boss, and the connecting part is connected to the pressing plate; the pressing boss is arranged on one side of the connecting part away from the pressing plate and protrudes downwards along the lower surface of the connecting part, so as to press the material sheet along with the rotation of the pressing plate. And/or, the shape of the pressing boss is configured as a platform.

Optionally, the number of the pressing pieces is two, the number of the driving assemblies is two, the two pressing pieces are arranged on two opposite sides of the material placing surface at intervals, and one pressing piece rotates and is propped against the material sheet under the driving of the corresponding driving assembly.

Optionally, the driving assembly comprises a driving piece, a rotating shaft and a locking block, and the driving piece and the material placing plate are arranged at intervals; one end of the rotating shaft is in transmission connection with the driving piece, and the other end of the rotating shaft is connected with the pressing plate so that the pressing plate rotates along with the rotating shaft; the clamp plate has seted up the shaft hole, the pore wall in shaft hole has seted up flutedly so that the pivot exposes, the latch segment inlays and locates in the recess, in order to support to press fixedly the pivot.

Optionally, a plurality of spaced mounting holes are formed in the bottom wall of the groove, a plurality of connecting holes are formed in the locking block, and one connecting hole is correspondingly and fixedly connected to the hole wall of one mounting hole through a fastener.

Optionally, the locking piece has seted up first indent, set up the second indent on the pivot, the cell wall in first indent and the cell wall looks butt in second indent.

Optionally, the bottom wall of the first indent is further provided with a pressing hole in a penetrating manner, and the pressing hole is provided with a locking piece in a penetrating manner so as to press the rotating shaft.

Optionally, the driving assembly further comprises a torsion spring, the torsion spring is sleeved on the rotating shaft, one end of the torsion spring is connected with the material placing plate, and the other end of the torsion spring is connected with the pressing plate.

Optionally, the driving assembly further comprises a connector and a jacking body, and the connector is connected with one end of the rotating shaft, which is close to the driving piece; the jacking body is connected to one side, far away from the driving assembly, of the connecting body, and the jacking body rotates under the jacking of the driving piece so as to drive the rotating shaft to rotate.

The utility model further provides laser marking equipment, which comprises a laser and the material pressing mechanism, wherein the laser and the material pressing mechanism are arranged at intervals, and the laser is used for marking the material sheets.

According to the technical scheme, the material pressing mechanism comprises a material placing plate, a driving assembly and a material pressing piece, wherein the material placing plate is provided with a material placing surface, and the material placing surface is used for placing a material sheet; the drive assembly locates to put the flitch, presses the material spare to include clamp plate and a plurality of briquetting, a plurality of briquetting are followed the length direction interval setting of clamp plate, the clamp plate rotates under drive assembly's drive to drive a plurality of briquetting and support in step and press in the tablet.

Compared with the fact that the pressing blocks rotate along with the rotating shaft respectively and independently, uneven pressing is easy to cause, the pressing blocks synchronously support and press all areas of the material sheet along with the rotation of the pressing plates, smooth pressing of the pressing blocks on the material sheet is facilitated, and then the laser marking precision is guaranteed.

Drawings

In order to more clearly illustrate the embodiments of the present utility model or the technical solutions in the prior art, the drawings that are required in the embodiments or the description of the prior art will be briefly described, and it is obvious that the drawings in the following description are only some embodiments of the present utility model, and other drawings may be obtained according to the structures shown in these drawings without inventive effort for a person skilled in the art.

FIG. 1 is a side view of an embodiment of a press mechanism according to the present utility model;

FIG. 2 is an exploded view of a portion of the press mechanism of FIG. 1;

FIG. 3 is a schematic view of the structure of the middle material plate in FIG. 2;

FIG. 4 is a schematic view of the platen of FIG. 2 from a view;

FIG. 5 is a schematic view of the pressure plate of FIG. 2 from another perspective;

FIG. 6 is a schematic view of the latch segment of FIG. 2;

FIG. 7 is a schematic view of the structure of the spindle in FIG. 2;

fig. 8 is a schematic view of the transmission assembly of fig. 2.

Reference numerals illustrate:

the achievement of the objects, functional features and advantages of the present utility model will be further described with reference to the accompanying drawings, in conjunction with the embodiments.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and fully with reference to the accompanying drawings, in which it is evident that the embodiments described are only some, but not all embodiments of the utility model. 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.

It should be noted that all directional indicators (such as up, down, left, right, front, and rear … …) in the embodiments of the present utility model are merely used to explain the relative positional relationship, movement, etc. between the components in a particular posture (as shown in the drawings), and if the particular posture is changed, the directional indicator is changed accordingly.

In the present utility model, unless specifically stated and limited otherwise, the terms "connected," "affixed," and the like are to be construed broadly, and for example, "affixed" may be a fixed connection, a removable connection, or an integral body; can be mechanically or electrically connected; either directly or indirectly, through intermediaries, or both, may be in communication with each other or in interaction with each other, unless expressly defined otherwise. The specific meaning of the above terms in the present utility model can be understood by those of ordinary skill in the art according to the specific circumstances.

Furthermore, descriptions such as those referred to as "first," "second," and the like, are provided for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implying an order of magnitude of the indicated technical features in the present disclosure. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include at least one such feature. In addition, the meaning of "and/or" as it appears throughout is meant to include three side-by-side schemes, for example, "a and/or B", including a scheme, or B scheme, or a scheme that is satisfied by both a and B. In addition, the technical solutions of the embodiments may be combined with each other, but it is necessary to base that the technical solutions can be realized by those skilled in the art, and when the technical solutions are contradictory or cannot be realized, the combination of the technical solutions should be considered to be absent and not within the scope of protection claimed in the present utility model.

With the development of science and technology, two-dimensional codes are increasingly used for information identification, product tracing and the like in the production and manufacturing of various industries and daily life. The two-dimensional code is used for recording data symbol information by using a black-white alternate pattern which is distributed on a plane (two-dimensional direction) according to a certain rule by using a certain specific geometric figure, and can express information in two directions of transverse and longitudinal directions at the same time, so that a large amount of information can be expressed in a small area. The traditional product surface two-dimensional code often adopts a labeling technology and an ink-jet technology, the labeling technology has limited use scenes and labels are easy to damage so that information is lost, and therefore the two-dimensional code cannot be identified or the information is wrong; the ink-jet two-dimensional code is not resistant to storage and is easy to wear, the process is complex, and the ink-jet two-dimensional code has certain damage to the environment and human body, so that more excellent identification technology is needed to replace the two technologies. The laser processing has the characteristics of permanence, and the laser processing has no consumable loss, and low production cost, is widely applied to manufacturing industry at present, so that more and more industries adopt laser to mark two-dimensional codes on the surface of a product for product tracing, such as marking the two-dimensional codes by an automobile engine or a bearing.

In view of the above problems, the present disclosure proposes a pressing mechanism 100, which aims to realize that a plurality of pressing blocks 53 synchronously support and press on each region of a web along with rotation of a pressing plate 51, so as to facilitate smooth pressing of the pressing blocks 53 on the web, and further ensure the precision of laser marking.

Referring to fig. 1 and 2, in one embodiment of the present utility model, the pressing mechanism 100 includes a material placing plate 10, a driving assembly 30, and a pressing member 50, where the material placing plate 10 is provided with a material placing surface 111, and the material placing surface 111 is used for placing a material sheet; the driving component 30 is arranged on the material placing plate 10; the pressing piece 50 comprises a pressing plate 51 and a plurality of pressing blocks 53, the pressing plate 51 is arranged on one side of the material placing surface 111, and the pressing blocks 53 are arranged at intervals along the length direction of the pressing plate 51; the output end of the driving assembly 30 is in driving connection with the pressing plate 51, so as to drive the pressing plate 51 to rotate and drive the pressing blocks 53 to respectively press against the material sheets.

Wherein the placement plate 10 is used for placing and supporting the material sheets. For example, the placement plate 10 is selected as a plate body for placing the material sheet. According to actual need, can be provided with the vacuum adsorption hole on the plate body, realize the absorption to the tablet through the vacuum adsorption hole. Specifically, with further reference to fig. 3, the material placing plate 10 includes a first plate body 11 and a second plate body 13, where the second plate body 13 protrudes from the first plate body 11 to be used for supporting a material sheet, and material pressing pieces 50 are disposed on two sides of the second plate body 13 to press the material sheet, so as to ensure the flatness of the material sheet.

The driving assembly 30 is used for driving the pressing plate 51, so that the pressing plate 51 rotates to drive the pressing blocks 53 to press against the material sheets. For example, the driving assembly 30 is selected as the rotation driving assembly 30, the pressing plate 51 is provided with a transmission part, and the pressing plate 51 is driven to rotate under the rotation transmission of the transmission part of the rotation driving assembly 30.

The pressing member 50 is used for pressing the web, so that the web is fixed on the material placing plate 10, and the web is placed to deviate to influence the precision of laser processing. For example, the swage 50 is selected as a clamp.

In the technical scheme of the utility model, the material pressing mechanism 100 comprises a material placing plate 10, a driving assembly 30 and a material pressing piece 50, wherein the material placing plate 10 is provided with a material placing surface 111, and the material placing surface 111 is used for placing a material sheet; the driving assembly 30 is arranged on the material placing plate 10, the material pressing piece 50 comprises a pressing plate 51 and a plurality of pressing blocks 53, the pressing blocks 53 are arranged at intervals along the length direction of the pressing plate 51, and the pressing plate 51 rotates under the driving of the driving assembly 30 and drives the pressing blocks 53 to synchronously press the material sheets.

Compared with the fact that the pressing blocks rotate along with the rotating shaft respectively and independently, uneven pressing is easy to cause, the pressing blocks 53 rotate along with the pressing plate 51 and synchronously press on all areas of the material sheet, smooth pressing of the pressing blocks 53 on the material sheet is facilitated, and then laser marking precision is guaranteed.

Referring to fig. 4, in one embodiment of the present utility model, the pressing block 53 includes a connection portion 531 and a pressing boss 533, and the connection portion 531 is connected to the pressing plate 51; the pressing boss 533 is disposed on a side of the connecting portion 531 away from the pressing plate 51 and protrudes downward along the lower surface of the connecting portion 531, so as to press against the web along with the rotation of the pressing plate 51. And/or, the pressing boss 533 is configured as a platform.

The connecting portion 531 is used for connecting the pressing plate 51 and the pressing boss 533, so that the pressing plate 53 is pressed against the material sheet when rotating, and the connecting portion 531 can be arranged in a certain radian.

The pressing boss 533 is a table body for directly pressing the material sheet, and the shape of the pressing boss 533 can be configured as a platform, so as to ensure the consistency of the pressing force of the material sheet when each pressing block 53 rotates.

In this embodiment, the pressing boss 533 is disposed along the lower surface of the connecting portion 531 in a protruding manner, so as to ensure that the pressing force of the pressing block 53 on the material sheet is large enough and stable when the pressing plate 51 rotates as much as possible, which is beneficial to realizing smooth pressing of the pressing block 53 on the material sheet, and further ensures the precision of laser marking.

Referring to fig. 1 and 2, in one embodiment of the present utility model, the number of the pressing members 50 is two, the number of the driving assemblies 30 is two, the two pressing members 50 are disposed at opposite sides of the material placing surface 111 at intervals, and one pressing member 50 rotates and presses against the material sheet under the driving of the corresponding driving assembly 30.

In this embodiment, two pressing members 50 are disposed at opposite sides of the material placing surface 111 at intervals, and one pressing member 50 rotates and abuts against the material sheet under the driving of a corresponding driving assembly 30, so as to abut against two sides of the material sheet, which is favorable for realizing smooth pressing of the pressing block 53 on the material sheet, and further ensures the precision of laser marking.

Referring to fig. 2 and 5, in one embodiment of the present utility model, the driving assembly 30 includes a driving member 31, a rotating shaft 331, and a locking block 333, where the driving member 31 and the placing plate 10 are spaced apart; one end of the rotating shaft 331 is in transmission connection with the driving member 31, and the other end of the rotating shaft 331 is connected with the pressing plate 51, so that the pressing plate 51 rotates along with the rotating shaft 331; the pressing plate 51 is provided with a shaft hole, the hole wall of the shaft hole is provided with a groove 511 to expose the rotating shaft 331, and the locking block 333 is embedded in the groove 511 to press and fix the rotating shaft 331.

Wherein, the driving member 31 is used for driving the rotating shaft 331 to rotate. For example, referring to fig. 1, the driving member 31 is a cylinder, the lifting body 37 is connected to the rotating shaft 331, and the cylinder drives the rotating shaft 331 to rotate indirectly by driving the lifting body 37 to rotate.

In this embodiment, the pressing plate 51 is provided with a shaft hole, the hole wall of the shaft hole is provided with a groove 511 to expose the rotating shaft 331, and the locking block 333 is embedded in the groove 511 to press the fixed rotating shaft 331, so that the rotating shaft 331 is not easy to deviate in the rotating process, the pressing block 53 is beneficial to realizing smooth pressing of the material sheets, and then the precision of laser marking is ensured.

Referring to fig. 6, in an embodiment of the present utility model, a plurality of spaced mounting holes 5111 are formed in the bottom wall of the recess 511, a plurality of connecting holes 3333 are formed in the locking block 333, and one connecting hole 3333 is correspondingly and fixedly connected to a hole wall of one mounting hole 5111 by a fastener.

Wherein the fastener is a fastening connector, for example, the fastener is selected as a bolt.

In this embodiment, the locking block 333 is fixedly connected to the hole wall of the mounting hole 5111 by a fastening piece penetrating through the connecting hole 3333, so as to realize that the locking block 333 is embedded in the groove 511 and ensure the pressing fixation of the rotating shaft 331.

Referring to fig. 6 and 7, in an embodiment of the utility model, the locking block 333 is provided with a first pressing groove 3331, the rotating shaft 331 is provided with a second pressing groove 3311, and a groove wall of the first pressing groove 3331 is abutted against a groove wall of the second pressing groove 3311.

Wherein, the bottom surfaces of the first pressing groove 3331 and the second pressing groove 3311 may be configured as planes, respectively.

In this embodiment, the locking block 333 is pressed against the second pressing groove 3311 of the rotating shaft 331 through the first pressing groove 3331, compared with the pressing of the locking block against the arc-shaped outer wall of the rotating shaft, the embodiment is favorable for fully realizing the smooth pressing of the locking block 333 and the rotating shaft 331, and then ensures the locking of the locking block 333 to the rotating shaft 331.

Referring to fig. 6, in an embodiment of the present utility model, a top pressing hole 33311 is further formed through the bottom wall of the first pressing groove 3331, and a locking member is formed through the top pressing hole 33311 to press against the rotating shaft 331.

The locking member is used for pushing the rotating shaft 331. For example, the lock 333 is selected as a jackscrew.

In this embodiment, the bottom wall of the first pressing slot 3331 of the locking block 333 is provided with a pressing hole 33311 in a penetrating manner, and the pressing hole 33311 is provided with a fastener in a penetrating manner to further press the rotating shaft 331, which is beneficial to ensuring locking of the rotating shaft 331 by the locking block 333.

Referring to fig. 2, in an embodiment of the present utility model, the driving assembly 30 further includes a torsion spring 335, the torsion spring 335 is sleeved on the rotating shaft 331, one end of the torsion spring 335 is connected to the feeding plate 10, and the other end is connected to the pressing plate 51.

In this embodiment, one end of the torsion spring 335 is connected to the placing plate 10, and the other end is connected to the pressing plate 51, so that when the pressing plate 51 is opened to press the placing plate 10, the torsion spring 335 can provide a reset pressing force for the pressing plate 51, and further increase the pressing force of the pressing plate 51 to the placing plate 10, which is beneficial to realizing smooth pressing of the pressing block 53 to the material sheet, and further ensures the precision of laser marking.

For example, referring to fig. 1, the material placing plate 10 includes a first plate body 11 and a second plate body 13, a supporting block 131 is protruding on the second plate body 13, and a torsion spring 335 is fixedly connected to the second plate body 13 of the material placing plate 10 through a fixing block.

Referring to fig. 2 and 8, in one embodiment of the present utility model, the driving assembly 30 further includes a connector 35 and a jack 37, wherein the connector 35 is connected to an end of the rotating shaft 331 near the driving member 31; the jacking body 37 is connected to a side of the connecting body 35 away from the driving assembly 30, and the jacking body 37 rotates under the jacking of the driving member 31 to drive the rotating shaft 331 to rotate.

Wherein the connector 35 is used for connecting the rotating shaft 331 and the jacking body 37. The jacking body 37 rotates under the jacking of the driving piece 31 and drives the rotating shaft 331 to rotate so as to realize the pressing of the pressing block 53 on the material sheet. For example, referring to fig. 1, the connector 35 includes a first fastening body 351 and a second fastening body 353, the first fastening body 351 and the second fastening body 353 enclose to form a fastening hole 355, and the fastening hole 355 is used for fixing the rotating shaft 331 to ensure the connection stability and prevent the rotating shaft 331 from being deviated. The jacking body 37 rotates under the jacking of the cylinder, and the jacking body 37 can be configured as a roller bearing, so that the abrasion caused by repeated jacking of the jacking body 37 by the cylinder can be reduced by increasing the jacking area, and the service life of the jacking body 37 can be prolonged.

In this embodiment, the jacking body 37 rotates under the jacking of the driving piece 31 to drive the rotating shaft 331 to rotate, thereby realizing the pressing of the pressing block 53 to the material sheet, compared with the driving of the driving piece to the rotating shaft in the horizontal setting, the jacking driving of the driving piece 31 to the rotating shaft 331 is performed through the vertical setting, which is favorable for fully realizing the horizontal integration of the driving assembly 30 and ensuring the timeliness of the driving of the rotating shaft 331.

The utility model further provides laser marking equipment, which comprises a laser and the material pressing mechanism 100, wherein the laser and the material pressing mechanism 100 are arranged at intervals, and the laser is used for marking the material sheets. The pressing mechanism 100 adopts all the technical solutions of all the embodiments, so that the pressing mechanism at least has all the beneficial effects brought by the technical solutions of the embodiments, and is not described in detail herein.

The laser is used for carrying out photoresist on the material sheet so as to realize two-dimensional code marking on the material sheet. For example, the laser may alternatively be a fiber laser. Fiber lasers have the advantage of ideal beam quality and ease of integrated setup.

The foregoing description is only of the preferred embodiments of the present utility model and is not intended to limit the scope of the utility model, and all equivalent structural changes made by the description of the present utility model and the accompanying drawings or direct/indirect application in other related technical fields are included in the scope of the utility model.

Claims

1. The utility model provides a swager constructs, its characterized in that, swager constructs includes:

the material placing plate is provided with a material placing surface, and the material placing surface is used for placing the material sheets;

the driving assembly is arranged on the material placing plate; the method comprises the steps of,

the pressing piece comprises a pressing plate and a plurality of pressing blocks, the pressing plate is arranged on one side of the material placing surface, and the pressing blocks are arranged at intervals along the length direction of the pressing plate;

the output end of the driving assembly is in driving connection with the pressing plate, so that the pressing plate is driven to rotate to drive the pressing blocks to respectively press the material sheets.

2. The press mechanism of claim 1, wherein the press block comprises:

the connecting part is connected to the pressing plate; and

the pressing boss is arranged on one side of the connecting part away from the pressing plate and protrudes downwards along the lower surface of the connecting part so as to press the material sheet along with the rotation of the pressing plate;

and/or, the shape of the pressing boss is configured as a platform.

3. The pressing mechanism of claim 1, wherein the number of the pressing members is two, the number of the driving assemblies is two, the two pressing members are arranged on two opposite sides of the material placing surface at intervals, and one pressing member rotates and is pressed against the material sheet under the driving of the corresponding driving assembly.

4. A press according to any one of claims 1 to 3, wherein the drive assembly comprises:

the driving piece and the material placing plate are arranged at intervals;

one end of the rotating shaft is in transmission connection with the driving piece, and the other end of the rotating shaft is connected with the pressing plate so that the pressing plate rotates along with the rotating shaft; the method comprises the steps of,

the locking block is provided with a shaft hole, the hole wall of the shaft hole is provided with a groove so that the rotating shaft is exposed, and the locking block is embedded in the groove so as to resist and fix the rotating shaft.

5. The pressing mechanism of claim 4, wherein a plurality of spaced mounting holes are formed in the bottom wall of the recess, a plurality of connecting holes are formed in the locking block, and one connecting hole is correspondingly and fixedly connected to the wall of one mounting hole through a fastener.

6. The pressing mechanism of claim 4, wherein the locking block is provided with a first pressing groove, the rotating shaft is provided with a second pressing groove, and the groove wall of the first pressing groove is abutted with the groove wall of the second pressing groove.

7. The pressing mechanism of claim 6, wherein the bottom wall of the first pressing groove is further provided with a pressing hole in a penetrating manner, and the pressing hole is provided with a locking piece in a penetrating manner to press the rotating shaft.

8. The pressing mechanism of claim 5, wherein the driving assembly further comprises a torsion spring, the torsion spring is sleeved on the rotating shaft, one end of the torsion spring is connected to the material placing plate, and the other end of the torsion spring is connected to the pressing plate.

9. The swage mechanism of claim 5, wherein the drive assembly further comprises:

the connecting body is connected with one end of the rotating shaft, which is close to the driving piece;

the jacking body is connected to one side, away from the driving assembly, of the connecting body, and the jacking body rotates under the jacking of the driving piece so as to drive the rotating shaft to rotate.

10. A laser marking apparatus, characterized in that the laser marking apparatus comprises:

a laser; and

a press as claimed in any one of claims 1 to 9, wherein the laser is spaced from the press, and the laser is used to mark the web.