阅读说明：本技术 Pet防雾板材的输送设备及生产工艺 (Conveying equipment and production process of PET antifogging sheet material ) 是由 王磊 于 2021-11-02 设计创作，主要内容包括：本发明属于片材切割技术领域,具体涉及一种PET防雾板材的输送设备及生产工艺,其中PET防雾板材的输送设备包括：支架,驱动装置,所述驱动装置设置在所述支架上；输送装置,所述输送装置设置在所述支架上,所述输送装置与所述驱动装置连接,所述驱动装置适于驱动输送装置在板材上切割出片材,实现了快速在板材上切割形成片材,提高了生产效率。(The invention belongs to the technical field of sheet cutting, and particularly relates to conveying equipment and a production process for a PET (polyethylene terephthalate) antifogging sheet, wherein the conveying equipment for the PET antifogging sheet comprises: the driving device is arranged on the bracket; the conveying device is arranged on the support and connected with the driving device, and the driving device is suitable for driving the conveying device to cut sheets on the plate, so that the sheets can be quickly cut on the plate, and the production efficiency is improved.)

1. The utility model provides a conveying equipment of antifog panel of PET which characterized in that includes:

a support frame is arranged on the base plate,

the driving device is arranged on the bracket;

the conveying device is arranged on the support and is connected with the driving device, and the driving device is suitable for driving the conveying device to cut sheets on the plate.

2. The conveying apparatus for PET antifogging sheet material according to claim 1,

the conveying device comprises: the device comprises a supporting mechanism, a plurality of stamping mechanisms and a plurality of cutting mechanisms;

the supporting mechanism is arranged on the bracket and extends along the width direction of the plate;

the stamping mechanism is arranged on the supporting mechanism along the width direction of the plate;

the cutting mechanism is arranged between two adjacent stamping mechanisms;

the driving device is suitable for driving the punching mechanism to punch the plate in the length direction of the plate, the plate after being punched by the punching mechanism moves in the length direction of the plate, and the driving device is suitable for driving the cutting mechanism to cut the plate in the width direction of the plate after the plate moves, so that the cut mark is communicated with the punched strip-shaped hole, and the sheet is cut from the plate.

3. The conveying apparatus for PET antifogging sheet material according to claim 2,

the support mechanism includes: the supporting device comprises a supporting block, a first connecting strip, a second connecting strip and a plurality of supporting columns;

the supporting block is arranged on the bracket;

the first connecting strip and the second connecting strip are connected with the supporting block and extend along the width direction of the plate;

the first connecting strip and the second connecting strip are symmetrically arranged;

the stamping mechanism and the cutting mechanism are arranged on the first connecting strip and the second connecting strip;

one end of the supporting column is arranged on the first connecting strip, and the other end of the supporting column is arranged on the second connecting strip;

the supporting column corresponds to the stamping mechanism;

the sheet material is located between the first connecting strip and the second connecting strip.

4. The conveying apparatus for PET antifogging sheet material according to claim 3,

the punching press mechanism includes: a first punching strip and a second punching strip;

the first punching strip is arranged on the first connecting strip and arranged along the length direction of the plate;

the second punching strip is connected with the second connecting strip and arranged along the length direction of the plate;

the first punching strip and the second punching strip are arranged oppositely;

a first punch with a first groove is arranged on the first punching strip;

the second punching strip is provided with a through hole corresponding to the first punch;

the first connecting strip is provided with a sliding groove corresponding to the first punching strip;

the driving device is suitable for driving the first punching strip to move along the sliding groove, so that the first punching strip is close to the second punching strip, a strip-shaped hole in the length direction of the plate is formed in the plate through punching of the first punch, and punching waste materials fall through the through hole.

5. The conveying apparatus for PET antifogging sheet material according to claim 4,

elastic pieces are arranged on the first punching strip and the second punching strip;

the elastic piece on the first punching strip is arranged behind the first punching head along the moving direction of the plate;

the elastic piece on the second punching strip is arranged behind the through hole along the moving direction of the plate;

a second punch is arranged at one end, close to the front, of the first punching strip along the moving direction of the plate;

a second groove is formed in one end, close to the front, of the second punching strip along the moving direction of the plate;

the second punch corresponds to and is matched with the second groove;

and placing a metal plate on the second groove, and when the driving device drives the first punching strip to be close to the second punching strip, the second punch enters the second groove to punch the metal plate.

6. The conveying apparatus for PET antifogging sheet material according to claim 5,

the cutting mechanism includes: a first cutter and a second cutter;

the first cutter is arranged between every two adjacent first punching strips along the width direction of the plate;

the second cutter is arranged between every two adjacent second punching strips along the width direction of the plate;

the first cutter and the second cutter are arranged behind the supporting column along the moving direction of the plate

After the first punch is used for punching, the plate moves, the driving device drives the first punching strip to be close to the second punching strip, the first cutter is driven to be close to the second cutter, the plate is cut along the width direction of the plate, the cutting marks of the first cutter and the second cutter are communicated with the strip-shaped hole punched by the first punch, and the sheet is cut from the plate.

7. The conveying apparatus for PET antifogging sheet material according to claim 6,

the driving device includes: a cylinder and a connecting plate;

the cylinder is arranged on the bracket;

the cylinder is connected with the connecting plate;

the connecting plate is connected with the first punching strip;

the air cylinder is suitable for driving the first punching strip to be close to or far away from the second punching strip through the connecting plate.

8. The conveying apparatus for PET antifogging sheet material according to claim 7,

the conveying apparatus further includes: a conveyor belt;

the conveying belt is suitable for conveying the plate to a position between the first punching strip and the second punching strip and driving the plate to move between the first punching strip and the second punching strip.

9. The conveying apparatus for PET antifogging sheet material according to claim 8,

the conveying apparatus further includes: an ink jet device;

the nozzle of the ink jet device is positioned between two adjacent first punching strips;

the ink jet device is suitable for spraying ink on the plate through a spray head.

10. A production process of a PET antifogging sheet material is characterized by comprising the following steps:

the driving device drives the conveying device to cut the sheet on the plate material.

Technical Field

The invention belongs to the technical field of sheet cutting, and particularly relates to conveying equipment and a production process of a PET (polyethylene terephthalate) antifogging sheet.

Background

The existing PET antifogging sheet is complex in production process, can be cut into sheets only by matching a plurality of devices, is low in production efficiency and cannot meet the requirement of large-scale production.

Therefore, a new conveying device and a new production process for the PET antifogging sheet material are needed to be designed based on the technical problems.

Disclosure of Invention

The invention aims to provide conveying equipment and a production process of a PET anti-fog plate.

In order to solve the technical problem, the invention provides a conveying device for a PET anti-fog plate, which comprises:

a support frame is arranged on the base plate,

the driving device is arranged on the bracket;

the conveying device is arranged on the support and is connected with the driving device, and the driving device is suitable for driving the conveying device to cut sheets on the plate.

Further, the conveying device includes: the device comprises a supporting mechanism, a plurality of stamping mechanisms and a plurality of cutting mechanisms;

the supporting mechanism is arranged on the bracket and extends along the width direction of the plate;

the stamping mechanism is arranged on the supporting mechanism along the width direction of the plate;

the cutting mechanism is arranged between two adjacent stamping mechanisms;

the driving device is suitable for driving the punching mechanism to punch the plate in the length direction of the plate, the plate after being punched by the punching mechanism moves in the length direction of the plate, and the driving device is suitable for driving the cutting mechanism to cut the plate in the width direction of the plate after the plate moves, so that the cut mark is communicated with the punched strip-shaped hole, and the sheet is cut from the plate.

Further, the support mechanism includes: the supporting device comprises a supporting block, a first connecting strip, a second connecting strip and a plurality of supporting columns;

the supporting block is arranged on the bracket;

the first connecting strip and the second connecting strip are connected with the supporting block and extend along the width direction of the plate;

the first connecting strip and the second connecting strip are symmetrically arranged;

the stamping mechanism and the cutting mechanism are arranged on the first connecting strip and the second connecting strip;

one end of the supporting column is arranged on the first connecting strip, and the other end of the supporting column is arranged on the second connecting strip;

the supporting column corresponds to the stamping mechanism;

the sheet material is located between the first connecting strip and the second connecting strip.

Further, the punching mechanism includes: a first punching strip and a second punching strip;

the first punching strip is arranged on the first connecting strip and arranged along the length direction of the plate;

the second punching strip is connected with the second connecting strip and arranged along the length direction of the plate;

the first punching strip and the second punching strip are arranged oppositely;

a first punch with a first groove is arranged on the first punching strip;

the second punching strip is provided with a through hole corresponding to the first punch;

the first connecting strip is provided with a sliding groove corresponding to the first punching strip;

the driving device is suitable for driving the first punching strip to move along the sliding groove, so that the first punching strip is close to the second punching strip, a strip-shaped hole in the length direction of the plate is formed in the plate through punching of the first punch, and punching waste materials fall through the through hole.

Furthermore, elastic pieces are arranged on the first punching strip and the second punching strip;

the elastic piece on the first punching strip is arranged behind the first punching head along the moving direction of the plate;

the elastic piece on the second punching strip is arranged behind the through hole along the moving direction of the plate;

a second punch is arranged at one end, close to the front, of the first punching strip along the moving direction of the plate;

a second groove is formed in one end, close to the front, of the second punching strip along the moving direction of the plate;

the second punch corresponds to and is matched with the second groove;

and placing a metal plate on the second groove, and when the driving device drives the first punching strip to be close to the second punching strip, the second punch enters the second groove to punch the metal plate.

Further, the cutting mechanism includes: a first cutter and a second cutter;

the first cutter is arranged between every two adjacent first punching strips along the width direction of the plate;

the second cutter is arranged between every two adjacent second punching strips along the width direction of the plate;

the first cutter and the second cutter are arranged behind the supporting column along the moving direction of the plate

After the first punch is used for punching, the plate moves, the driving device drives the first punching strip to be close to the second punching strip, the first cutter is driven to be close to the second cutter, the plate is cut along the width direction of the plate, the cutting marks of the first cutter and the second cutter are communicated with the strip-shaped hole punched by the first punch, and the sheet is cut from the plate.

Further, the driving device includes: a cylinder and a connecting plate;

the cylinder is arranged on the bracket;

the cylinder is connected with the connecting plate;

the connecting plate is connected with the first punching strip;

the air cylinder is suitable for driving the first punching strip to be close to or far away from the second punching strip through the connecting plate.

Further, the conveying apparatus further includes: a conveyor belt;

the conveying belt is suitable for conveying the plate to a position between the first punching strip and the second punching strip and driving the plate to move between the first punching strip and the second punching strip.

Further, the conveying apparatus further includes: an ink jet device;

the nozzle of the ink jet device is positioned between two adjacent first punching strips;

the ink jet device is suitable for spraying ink on the plate through a spray head.

On the other hand, the invention also provides a production process of the PET antifogging sheet material, which comprises the following steps:

the driving device drives the conveying device to cut the sheet on the plate material.

The invention has the beneficial effects that the invention has the advantages that the invention uses the bracket and the driving device, and the driving device is arranged on the bracket; the conveying device is arranged on the support and connected with the driving device, and the driving device is suitable for driving the conveying device to cut sheets on the plate, so that the sheets can be quickly cut on the plate, and the production efficiency is improved.

Additional features and advantages of the invention will be set forth in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention.

In order to make the aforementioned and other objects, features and advantages of the present invention comprehensible, preferred embodiments accompanied with figures are described in detail below.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and other drawings can be obtained by those skilled in the art without creative efforts.

FIG. 1 is a schematic structural diagram of a conveying device for PET antifogging sheet materials according to the present invention;

FIG. 2 is a schematic view of a conveyor apparatus according to the present invention;

fig. 3 is an enlarged view of a portion a of fig. 1 according to the present invention.

In the figure:

1 is a bracket;

2, a conveying device, 21, 211, 212, 213, 214, 215, 22, 221, 222, 223, a first punch, 224, 225, a through hole, 226, 227, a second punch, 228, 23, 231, a first cutter, and 232, respectively;

3 is a driving device, 31 is a cylinder, and 32 is a connecting plate;

4 is a conveyor belt;

an ink jet device 5 and a head 51.

Detailed Description

To make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings, and it is apparent that the described embodiments are some, but not all embodiments of the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Example 1

As shown in fig. 1 to fig. 3, this embodiment 1 provides a conveying apparatus for a PET anti-fog sheet, including: the device comprises a bracket 1 and a driving device 3, wherein the driving device 3 is arranged on the bracket 1; the conveying device 2 is arranged on the support 1, the conveying device 2 is connected with the driving device 3, and the driving device 3 is suitable for driving the conveying device 2 to cut sheets on the plate, so that the sheets can be quickly cut on the plate, and the production efficiency is improved.

Conveying device 2

In the present embodiment, the conveying device 2 includes: a supporting mechanism 21, a plurality of stamping mechanisms 22 and a plurality of cutting mechanisms 23; the supporting mechanism 21 is arranged on the bracket 1, and the supporting mechanism 21 extends along the width direction of the plate; the stamping mechanism 22 is arranged on the supporting mechanism 21 along the width direction of the plate; the cutting mechanism 23 is arranged between two adjacent stamping mechanisms 22; the driving device 3 is suitable for driving the stamping mechanism 22 to stamp the plate in the length direction of the plate, the plate after stamping by the stamping mechanism 22 moves in the length direction of the plate, and the driving device 3 is suitable for driving the cutting mechanism 23 to cut the plate in the width direction of the plate after moving the plate, so that the cut is communicated with the punched strip-shaped hole to cut the plate from the plate; by the punching of the punching mechanism 22 and the cutting of the cutting mechanism 23, a desired sheet material can be cut out quickly on the plate material, improving the cutting efficiency of the sheet material.

In the present embodiment, the support mechanism 21 includes: a supporting block 211, a first connecting bar 212, a second connecting bar 213, and a plurality of supporting columns 214; the supporting block 211 is arranged on the bracket 1; the first and second connection bars 212 and 213 are connected to the supporting block 211 and extend in the width direction of the plate material; the first connecting bar 212 and the second connecting bar 213 are symmetrically arranged; the punching mechanism 22 and the cutting mechanism 23 are provided on the first connecting bar 212 and the second connecting bar 213; one end of the supporting column 214 is disposed on the first connecting bar 212, and the other end is disposed on the second connecting bar 213; the support column 214 corresponds to the punching mechanism 22; the plate material is located between the first connecting bar 212 and the second connecting bar 213; the punching mechanism 22 and the cutting mechanism 23 can be supported by the supporting mechanism 21, and the punching mechanism 22 and the cutting mechanism 23 can cut out a sheet material on the plate material.

In the present embodiment, the punching mechanism 22 includes: a first punched strip 221 and a second punched strip 222; the first punching strip 221 is arranged on the first connecting strip 212, and the first punching strip 221 is arranged along the length direction of the plate material; the second punching strip 222 is connected with the second connecting strip 213, and the second punching strip 222 is arranged along the length direction of the plate; the first punching strip 221 and the second punching strip 222 are arranged oppositely; a first punch 223 with a first groove 224 is arranged on the first punching strip 221; the second punching strip 222 is provided with a through hole 225 corresponding to the first punch 223; the first connecting bar 212 is provided with a sliding groove 215 corresponding to the first punching bar 221; the driving device 3 is adapted to drive the first punching strip 221 to move along the sliding chute 215, so that the first punching strip 221 is close to the second punching strip 222, a strip-shaped hole along the length direction of the plate is formed on the plate by punching through the first punch 223, and the punching waste falls through the through hole 225; the first groove 224 of the first punch 223 is elongated to form a through hole 225 in the plate along the length of the plate.

In this embodiment, the elastic members 226 are disposed on the first punching bar 221 and the second punching bar 222; the elastic member 226 of the first punching strip 221 is disposed behind the first punch 223 in the moving direction of the plate material; the elastic piece 226 on the second punching strip 222 is arranged behind the through hole 225 along the moving direction of the plate material, and when the driving device 3 drives the first punching strip 221 to punch, the part which does not need to be punched at present is prevented from being damaged by extrusion through the elastic piece 226; a second punch 227 is arranged at one end, close to the front, of the first punching strip 221 along the moving direction of the plate; a second groove 228 is formed in one end, close to the front end in the moving direction of the plate, of the second punching strip 222; the second punch 227 corresponds to and fits into the second recess 228; a metal plate is placed on the second groove 228, when the driving device 3 drives the first punching strip 221 to approach the second punching strip 222, the second punch 227 enters the second groove 228, and the metal plate (the material of the metal plate may be iron, etc.) is punched, so that the metal plate is punched to form a U-shaped part, and the U-shaped part may be used for edge wrapping in subsequent processing of a sheet material, and is convenient for clamping, etc.

In the present embodiment, the cutting mechanism 23 includes: a first cutter 231 and a second cutter 232; the first cutting knife 231 is arranged between two adjacent first punching strips 221 along the width direction of the plate; the second cutter 232 is arranged between two adjacent second punching strips 222 along the width direction of the plate; the first cutter 231 and the second cutter 232 are arranged behind the supporting column 214 along the moving direction of the sheet material; after the first punch 223 punches, the plate moves, the driving device 3 drives the first punching strip 221 to approach the second punching strip 222, drives the first cutter 231 to approach the second cutter 232, cuts the plate along the width direction of the plate, and cuts the plate by the cuts of the first cutter 231 and the second cutter 232 being communicated with the strip-shaped hole punched by the first punch 223 to cut the plate; the cutting marks of the first cutter 231 and the second cutter 232 are along the width direction of the plate and are communicated with the strip-shaped hole along the length direction of the plate, and then the area enclosed by the cutting marks and the strip-shaped hole is a sheet.

Drive device 3

In the present embodiment, the driving device 3 includes: a cylinder 31 and a connecting plate 32; the cylinder 31 is arranged on the bracket 1; the cylinder 31 is connected with the connecting plate 32; the connecting plate 32 is connected with the first punching strip 221; the cylinder 31 is adapted to drive the first punching bar 221 to approach or separate from the second punching bar 222 through the connecting plate 32.

Conveyor belt 4

In this embodiment, the conveying apparatus further includes: a conveyor belt 4; the conveyor belt 4 is adapted to transport the sheet material between the first punching bar 221 and the second punching bar 222 and drive the sheet material to move between the first punching bar 221 and the second punching bar 222, wherein the sheet material is firstly punched by the first punching bar 221 and then cut by the first cutter 231.

Ink jet device 5

In this embodiment, the conveying apparatus further includes: an ink jet device 5; the spray head 51 of the ink jet device 5 is positioned between two adjacent first punching strips 221; the ink-jet device 5 is suitable for spraying ink on the plate through a spray head 51; the number of the sprayed coating can be numbered, so that the number of the sheets can be conveniently recorded, and the spray head 51 is positioned between two adjacent first punching strips 221, so that the spray head 51 can be prevented from spraying ink on the adjacent sheets, and when the spray head 51 is damaged, the spray coating of the sheets between the two first punching strips 221 can be only influenced.

In this embodiment, the conveyor belt 4 transports the board to between the first connecting bar 212 and the second connecting bar 213, the nozzle 51 of the inkjet device 5 sprays ink on the board to form a serial number, when the edge of the board is close to the supporting pillar 214, the conveyor belt 4 stops transporting temporarily, at this time, the cylinder 31 drives the first punching bar 221 to be close to the second punching bar 222, the first groove 224 of the first punch 223 punches a strip hole on the board, the strip hole is communicated with the edge of the board, the cylinder 31 drives the first punching bar 221 to be far away from the second punching bar 222 after punching, at this time, the conveyor belt 4 continues transporting the board, the supporting pillar 214 moves relatively in the strip hole during transportation of the board, when the supporting pillar 214 is close to the end of the strip hole, the conveyor belt 4 stops transporting temporarily, at this time, the cylinder 31 drives the first punching bar 221 to be close to the second punching bar 222, drives the first cutter 231 to be close to the second cutter 232, the first cutter 231 and the second cutter 232 cooperate to cut the board in the width direction of the board, the cut mark of the cut is communicated with the two strip-shaped holes to form a sheet, and the first groove 224 of the first punch 223 punches the sheet material to form the strip-shaped hole communicated with the previous strip-shaped hole, so that the next sheet can be cut conveniently.

Example 2

On the basis of embodiment 1, this embodiment 2 further provides a production process of a PET antifogging sheet material, including: the driving device 3 drives the conveying device 2 to cut the sheet material on the plate material.

Specifically, the conveyor belt 4 conveys the plate material to a position between the first connecting bar 212 and the second connecting bar 213, the nozzle 51 of the ink jet device 5 sprays ink on the plate material to form a serial number, when the edge of the plate material is to be close to the supporting column 214, the conveyor belt 4 stops conveying temporarily, at this time, the cylinder 31 drives the first punching bar 221 to be close to the second punching bar 222, the first groove 224 of the first punch 223 punches the plate material to form a strip-shaped hole, the strip-shaped hole is communicated with the edge of the plate material, the cylinder 31 drives the first punching bar 221 to be far away from the second punching bar 222 after punching, at this time, the conveyor belt 4 continues conveying the plate material, the supporting column 214 moves relatively in the strip-shaped hole during plate material transportation, when the supporting column 214 is to be close to the end of the strip-shaped hole, the conveyor belt 4 stops transporting temporarily, at this time, the cylinder 31 drives the first punching bar 221 to be close to the second punching bar 222, drives the first cutter 231 to be close to the second cutter 232, the first cutter 231 and the second cutter 232 cooperate with the plate material to cut the plate material along the width direction, the cut mark of the cut is communicated with the two strip-shaped holes to form a sheet, and the first groove 224 of the first punch 223 punches the sheet material to form the strip-shaped hole communicated with the previous strip-shaped hole, so that the next sheet can be cut conveniently.

In summary, the present invention provides a bracket 1, a driving device 3, wherein the driving device 3 is disposed on the bracket 1; the conveying device 2 is arranged on the support 1, the conveying device 2 is connected with the driving device 3, and the driving device 3 is suitable for driving the conveying device 2 to cut sheets on the plate, so that the sheets can be quickly cut on the plate, and the production efficiency is improved.

The components selected for use in the present application (components not illustrated for specific structures) are all common standard components or components known to those skilled in the art, and the structure and principle thereof can be known to those skilled in the art through technical manuals or through routine experimentation. Moreover, the software programs referred to in the present application are all prior art, and the present application does not relate to any improvement of the software programs.

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

In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, but do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the several embodiments provided in the present application, it should be understood that the disclosed system, apparatus and method may be implemented in other ways. The above-described embodiments of the apparatus are merely illustrative, and for example, the division of the units is only one logical division, and there may be other divisions when actually implemented, and for example, a plurality of units or components may be combined or integrated into another system, or some features may be omitted, or not executed. In addition, the shown or discussed mutual coupling or direct coupling or communication connection may be an indirect coupling or communication connection of devices or units through some communication interfaces, and may be in an electrical, mechanical or other form.

The units described as separate parts may or may not be physically separate, and parts displayed as units may or may not be physical units, may be located in one place, or may be distributed on a plurality of network units. Some or all of the units can be selected according to actual needs to achieve the purpose of the solution of the embodiment.

In addition, functional units in the embodiments of the present invention may be integrated into one processing unit, or each unit may exist alone physically, or two or more units are integrated into one unit.

In light of the foregoing description of the preferred embodiment of the present invention, many modifications and variations will be apparent to those skilled in the art without departing from the spirit and scope of the invention. The technical scope of the present invention is not limited to the content of the specification, and must be determined according to the scope of the claims.