CN115142203A - Method for connecting preliminary sheath elements, preliminary machine and method for connecting two sheath elements - Google Patents
Method for connecting preliminary sheath elements, preliminary machine and method for connecting two sheath elements Download PDFInfo
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- CN115142203A CN115142203A CN202210155840.XA CN202210155840A CN115142203A CN 115142203 A CN115142203 A CN 115142203A CN 202210155840 A CN202210155840 A CN 202210155840A CN 115142203 A CN115142203 A CN 115142203A
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- covering
- sheathing
- region
- preparation
- sheath
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- 238000000034 method Methods 0.000 title claims abstract description 69
- 238000002360 preparation method Methods 0.000 claims abstract description 68
- 239000000853 adhesive Substances 0.000 claims abstract description 55
- 230000001070 adhesive effect Effects 0.000 claims abstract description 55
- 239000000463 material Substances 0.000 claims description 12
- 238000003825 pressing Methods 0.000 claims description 7
- 230000008569 process Effects 0.000 claims description 6
- 238000003754 machining Methods 0.000 claims description 2
- 238000009958 sewing Methods 0.000 description 32
- 239000002390 adhesive tape Substances 0.000 description 31
- 238000003860 storage Methods 0.000 description 8
- 239000004831 Hot glue Substances 0.000 description 7
- 230000008901 benefit Effects 0.000 description 7
- 238000004140 cleaning Methods 0.000 description 7
- 238000012545 processing Methods 0.000 description 7
- 238000005452 bending Methods 0.000 description 5
- 238000007688 edging Methods 0.000 description 5
- 230000000873 masking effect Effects 0.000 description 5
- 239000004744 fabric Substances 0.000 description 4
- 238000005304 joining Methods 0.000 description 4
- 239000010985 leather Substances 0.000 description 4
- 239000007788 liquid Substances 0.000 description 3
- 235000011837 pasties Nutrition 0.000 description 3
- 238000001816 cooling Methods 0.000 description 2
- 238000013461 design Methods 0.000 description 2
- 230000003993 interaction Effects 0.000 description 2
- 238000012423 maintenance Methods 0.000 description 2
- 239000000155 melt Substances 0.000 description 2
- 238000005096 rolling process Methods 0.000 description 2
- 238000012546 transfer Methods 0.000 description 2
- 239000004822 Hot adhesive Substances 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000011109 contamination Methods 0.000 description 1
- 238000005520 cutting process Methods 0.000 description 1
- 230000001419 dependent effect Effects 0.000 description 1
- 230000009977 dual effect Effects 0.000 description 1
- -1 felt Substances 0.000 description 1
- 239000006260 foam Substances 0.000 description 1
- 239000003292 glue Substances 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 230000002452 interceptive effect Effects 0.000 description 1
- 238000002844 melting Methods 0.000 description 1
- 230000008018 melting Effects 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
- 238000004513 sizing Methods 0.000 description 1
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- 238000003892 spreading Methods 0.000 description 1
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- 239000000126 substance Substances 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
- 239000004753 textile Substances 0.000 description 1
- 230000008719 thickening Effects 0.000 description 1
- 238000012549 training Methods 0.000 description 1
Images
Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60N—SEATS SPECIALLY ADAPTED FOR VEHICLES; VEHICLE PASSENGER ACCOMMODATION NOT OTHERWISE PROVIDED FOR
- B60N2/00—Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles
- B60N2/58—Seat coverings
- B60N2/5816—Seat coverings attachments thereof
- B60N2/5875—Seat coverings attachments thereof by adhesion, e.g. gluing
-
- D—TEXTILES; PAPER
- D05—SEWING; EMBROIDERING; TUFTING
- D05B—SEWING
- D05B35/00—Work-feeding or -handling elements not otherwise provided for
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05C—APPARATUS FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05C1/00—Apparatus in which liquid or other fluent material is applied to the surface of the work by contact with a member carrying the liquid or other fluent material, e.g. a porous member loaded with a liquid to be applied as a coating
- B05C1/02—Apparatus in which liquid or other fluent material is applied to the surface of the work by contact with a member carrying the liquid or other fluent material, e.g. a porous member loaded with a liquid to be applied as a coating for applying liquid or other fluent material to separate articles
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05C—APPARATUS FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05C21/00—Accessories or implements for use in connection with applying liquids or other fluent materials to surfaces, not provided for in groups B05C1/00 - B05C19/00
- B05C21/005—Masking devices
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60N—SEATS SPECIALLY ADAPTED FOR VEHICLES; VEHICLE PASSENGER ACCOMMODATION NOT OTHERWISE PROVIDED FOR
- B60N2/00—Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles
- B60N2/58—Seat coverings
- B60N2/5891—Seat coverings characterised by the manufacturing process; manufacturing seat coverings not otherwise provided for
-
- D—TEXTILES; PAPER
- D05—SEWING; EMBROIDERING; TUFTING
- D05D—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES D05B AND D05C, RELATING TO SEWING, EMBROIDERING AND TUFTING
- D05D2305/00—Operations on the work before or after sewing
- D05D2305/22—Physico-chemical treatments
- D05D2305/30—Physico-chemical treatments using adhesive
Landscapes
- Engineering & Computer Science (AREA)
- Aviation & Aerospace Engineering (AREA)
- Transportation (AREA)
- Mechanical Engineering (AREA)
- Textile Engineering (AREA)
- Treatment Of Fiber Materials (AREA)
- Sewing Machines And Sewing (AREA)
Abstract
The invention relates to a method for connecting preparatory sheath elements (1), comprising the following steps: determining a covering area (4, 7) of an outer surface (5) of the sheathing element (1); applying a covering element (8) to the covering region (4, 7); applying adhesive in the form of a surface to the outer surface (5) of the sheathing element (1) and to a covering element (8) covering the covering region (4, 7); removing the covering element (8) from the covering region (4, 7); the covering region (4, 7) is thereby designed as an adhesive-free region (6) of the outer surface (5) of the sheathing element (1). The invention further relates to a preparation machine (2) which is designed to carry out the preparation method; the invention also relates to a method for connecting at least two sheathing elements (1).
Description
Technical Field
The invention relates to a method for connecting preliminary sheath elements, a preliminary machine designed for carrying out the method, and a method for connecting at least two sheath elements.
Background
It is known to coat a sheathing element with an adhesive and then to sew together with another element, for example another sheathing element, by means of a sewing machine and to glue the two sheathing elements sewn to one another to a surface. The adhesive is, for example, a so-called hot-melt adhesive, i.e., a hot-melt adhesive or hot-melt adhesive, which is heated to a processing temperature at which the adhesive is at least pasty or liquid. The adhesive is rolled and/or otherwise applied to the jacket element at the processing temperature. The adhesive is then dried or dried, so that the sheathing element can then be further processed. The sheathing elements are then sewn to one another and placed in the installed position. The adhesive is for example heated again, so that it melts, as a result of which the structure formed by the sheathing element can be bonded to the respective surfaces at/in the installation position.
However, during the sewing process, frictional heat is generated as a result of the sewing needle rubbing in/at the material, whereby the adhesive melts in an undesirable manner during the sewing process and thereby contaminates the sewing needle. In this case, the sewing needle conveys the melted portion of the adhesive to the visible side of the sheathing element in an undesirable manner. This results in a particularly high outlay for cleaning the sewing machine and also in a outlay for cleaning the visible side of the sheathing element. The cooling of the sewing needle during the sewing process, known from the prior art, is expensive and does not completely solve the mentioned problems.
Disclosure of Invention
The object of the invention is to make the connection of at least two sheathing elements particularly effective.
This object is achieved according to the independent claims by a method for connecting preliminary sheath elements, a preparation machine and a method for connecting two sheath elements. The features, advantages and advantageous embodiments of the inventive preparation method can be regarded as features, advantages and advantageous embodiments of the inventive connection method and can also be used. The features, advantages and advantageous embodiments of the method according to the invention can be regarded as features, advantages and advantageous embodiments of the preparation machine according to the invention, wherein the preparation machine comprises means for carrying out the method steps of the method. Further possible embodiments of the invention are disclosed in the dependent claims, the description and the drawings.
In order to reliably connect at least two sheathing elements to one another as efficiently as possible, a method for connecting at least one of the preliminary sheathing elements is proposed according to the invention. "sheathing element" means in this regard an easily bendable, planar element having leather (real or imitation leather), fabric, knit, stitch-bonded fabric, rheologic fabric, felt, foam, film, or the like. Thus, the sheath element can be formed from one or more woven materials and/or one or more non-woven materials. The sheath element is flat, i.e. an outer surface of the sheath element is separated from a visible side surface of the sheath element by the thickness or the bulk of the sheath element, wherein the bulk is particularly small compared to the width and depth of the sheath element. The sheath element for example has a thickness or thickness of 0.8mm (millimeters) to 7 mm. Furthermore, the sheath element is defined by an outer end face, and the sheath element is flat, so the outer end face is particularly small, in particular less than a number of times, compared to the outer surface and compared to the visible side surface. In particular, the sheathing element is part of an interior trim element for motor vehicles, such as passenger cars and utility vehicles, i.e. for example a sheathing (such as a seat cover, a handrail cover, a sheathing of a dashboard, a sheathing of a ceiling, etc.) in or for an interior of a motor vehicle. Furthermore, the sheathing element can be a covering, such as a covering hook-and-loop structure of a utility vehicle.
The method for connecting a preliminary sheath element comprises the step of determining a cover region of the sheath element, wherein the cover region is formed by a portion of an outer surface of the sheath element. In other words, in the method, a portion of the outer surface of the sheath element is identified as the covering region. The outer surface comprising the designated masking zone is in particular not the visible side surface. This means that the visible side surface is the other outer surface of the sheath element.
In a further step of the method, a covering element is then applied to the covering region. The covering element is in particular in the form of a strip. The covering element is for example an adhesive tape. The covering element or the adhesive tape has a thickness of, in particular, less than 0.5 mm. The properties of the covering element are selected such that the sheath element is not deformed by the covering element when the covering element is applied to the sheath element. Thus, the covering element is, for example, not plastically reversibly stretchable, and it does not (re) shrink after application to the sheath element. In particular, the covering element is affixed to the outer surface of the sheath element in a manner such that it can be released reversibly without damage. It can therefore be provided that the covering element has an adhesive. The adhesive of the covering element is selected in such a way that an undesired interaction between the sheathing element and the covering element is prevented. In other words, the adhesive of the covering element is selected such that the sheathing element is not damaged by the covering element. Furthermore, the covering element, in particular the adhesive thereof, is designed in such a way that it can be released from the sheathing element without any marks and without damaging the sheathing element.
In the method for connecting preliminary sheath elements, the adhesive is then applied in a planar manner to the outer surface of the sheath element and to the covering element covering the covering region. If such an adhesive, which can be used to adhere the sheathing element, for example, to a surface, is applied at least partially in a surface-like manner to the surface and at least partially in a surface-like manner to the covering element applied to the covering element region, the adhesive is applied directly or next to the outer surface of the sheathing element and directly or next to the covering layer of the covering element. With reference to the covering element, this means that the covering layer is arranged between the adhesive of the covering element and the adhesive of the sheath element. The adhesive used for further processing of the sheathing element is, for example, a so-called hot-melt adhesive, i.e., a hot-melt adhesive or a hot-melt adhesive, which is heated to a processing temperature at which the adhesive is at least pasty or liquid. The adhesive is rolled and/or otherwise applied to the jacket element at the processing temperature, for example by means of a transfer roll. The adhesive can be applied to the sheath element by means of spraying, spreading (by means of a brush, spatula, etc.). The adhesive is then dried or dried, so that the sheathing element can then be further processed. In this case, the respective adhesive is selected in particular such that no undesired chemical interaction occurs between the adhesive and the material of the outer surface of the sheathing element.
Furthermore, the method comprises the step of removing the covering element from the covering region, whereby the covering region is configured as an adhesive-free region of the outer surface of the sheathing element. The tools used for further processing, in particular for connecting the sheathing elements, which are in contact with the adhesive-free regions, are therefore not contaminated by the adhesive. This advantageously results in less maintenance and/or cleaning effort for the tool in contact with the sheathing element. As a result, the tool is undesirably, because of uneconomical, particularly short of standstill or unused time. Finally, the method enables a particularly efficient process flow when joining the preliminary sheath elements.
The covering element or the adhesive tape can be a raw adhesive tape ("Malerkrepp"), which has a tape base portion with a raw adhesive structure. Due to this green structure of the tape base portion arranged in the transverse direction, stretching along the tape is allowed, whereby the curved profile can be effectively debonded. By the creasing of the green tape on the inside of the turn, a particularly narrow radius can be achieved. From internal tests it is known that radii in the range of 3mm (i.e. the outer radius and the inner radius) can be masked by means of the method, wherein the adhesive tape is at least partially corrugated for this purpose. For radii in the range from about 30mm, the masking can be carried out without creasing of the tape. Furthermore, the green tape does not shrink in an undesirable manner, so that an undesirable deformation of the sheathing element is effectively prevented. However, it is also conceivable that a different covering element than a raw adhesive tape, such as other types of adhesive tapes, can be used.
In a further embodiment of the method, the covering region is defined such that the seam region of the sheath element is covered by the covering element. This means that the covering region is a seam region, i.e. a region in which a seam is formed, for example by means of a sewing machine, when or for connecting the sheath element to the other sheath element.
The sewing machine used to place the seam in or on the seam region is not contaminated by adhesive, since the seam region is adhesive-free as described. In other words, the needle of the sewing machine pierces the sheathing element in the region of the thread seam, i.e. in the region free of adhesive, so that the needle of the sewing machine does not come into contact with the adhesive and is therefore not contaminated by the adhesive. As a result, a particularly efficient operation of the sewing machine results, since the removal of adhesive from the sewing needle can be dispensed with. Furthermore, it can be dispensed with that the visible side of the sheathing element is cleaned, since no adhesive is conveyed to the visible side by means of a sewing needle in the adhesive-free region or in the covering region. In addition, the following advantages result: for sewing machines, at least to prevent melting of the adhesive due to needle rubbing, no needle cooling measures are required, since the sewing needle is not in contact with the adhesive as intended. The energy expenditure for operating the sewing machine is thereby particularly low.
According to a further embodiment of the method, the cover region is defined such that the crimp region ("bending region") of the sheathing element is covered by the cover element. This means that the covering region is a crumple region or a bend region, i.e. a region in which the sheathing element is crumpled or bent. The creasing or bending of the sheathing element is thereby made particularly easy and/or less expensive, since the stiffness of the sheathing element in the area of the creasing is not affected by the adhesive. Furthermore, no adhesive is pressed out of the crumple zone during the crumpling of the sheathing element if the adhesive is (still) pasty and/or liquid at the time of the crumpling or bending of the sheathing element. Since no adhesive is squeezed out of the crumpled zone during the crumpling. The folding station is thus advantageously free of interfering adhesive, so that the cleaning effort for the station is particularly low, which again facilitates a particularly efficient process.
In a further embodiment of the method, it is provided that the covering element applied to the covering region is pressed onto the outer surface of the sheath element by means of a pressing element. The cover element is therefore not only applied to the cover region but is pressed onto the sheath element or its cover region, so that a particularly tight connection is established between the outer surface of the sheath element and the cover region. In this case, it is provided, in particular, that the pressure with which the covering element is pressed onto the sheathing element can be adjusted. Such as rollers, punches, etc. This results in a particularly secure support of the covering element on the outer surface of the sheath element, thereby ensuring a particularly simple handling of the prepared sheath element, for example for conveying the prepared sheath element to a further process step.
In particular, in the method, the cover region can be adjusted from 5mm to 20mm, in particular from 7mm to 15mm, by means of a stop element. Thus, a number of options are available for selecting the connecting element with which the sheath element is fastened to another element, for example another sheath element.
In the method, it can be provided according to a further embodiment that the covering region is defined such that the sheath element is covered along its outer edges with the covering element. The outer edge gives the outer contour of the sheathing element, and can be used, for example, as a design element. Furthermore, the outer edge can be functionally designed, for example, to enable objects, such as handrails, surfaces, etc., to be covered by the sheathing element to be decorated or covered particularly easily and/or with little effort. In this case, the outer edge may not be straight. This is advantageous if the sheathing element is covered along its outer edge by the covering element, since the sheathing element can then be machined, for example sewn, particularly reliably along the outer edge.
In a further embodiment of the method, the cover element is applied to the cover region in such a way that the outer edge of the cover element and the outer edge of the jacket element end flush with one another at least in sections, i.e., at least along a section of the outer edge. For example, the covering element, in particular an adhesive tape or a raw adhesive tape, is cut during/for application or after application in the longitudinal direction of the covering element. Alternatively, the cover element is selected such that the width of the cover element and the width of the cover region are equal. In this way, the covering element is applied to the jacket element particularly uniformly along the outer edge and follows the course of the outer edge. Furthermore, a constant width of the cover region is provided along the outer edge.
In the method, according to a further embodiment, it can be provided that the cover element is applied to the cover region in such a way that the outer edge of the cover element and the outer edge of the sheath element are separated from one another at least in part, i.e. at least along a part of the outer edge. This makes it possible to realize a cover region which is decoupled from a given course of the outer edge, which allows various design and/or processing options of the sheathing element.
In particular, in the method, it can be provided that the covering element is applied to the covering region in such a way that the outer edge of the sheathing element at least partially extends beyond the outer edge of the covering element. For example, an inner cover region can be produced which does not directly adjoin the outer edge of the sheathing element.
In general, it can be provided in the method that at least one outer edge of the cover element and an outer edge of the sheathing element are arranged parallel to one another, in particular if the cover element is a slightly elongated or strip-shaped cover element, such as an adhesive tape. In other words, in the method, it is provided that, when the cover element is applied to the jacket element, a constant distance is to be maintained between an outer edge of the cover element facing the outer edge of the jacket element and the outer edge of the jacket element along the outer edge of the jacket element. However, the distance between the respective outer edge of the cover element and the outer edge of the sheath element can vary along the outer edge of the sheath element.
In the method, according to a further embodiment, it can be provided that the material of the sheathing element in the covering region is partially cut off before the covering element is applied. Such a method step is referred to as "bevelling", in which the removal of the sheath element by the bevelling or by portions of the material of the sheath element has a lower thickness in the cover region or in the bevelling region than outside the cover region or in the bevelling region. A still easier creasing or bending of the sheathing element is achieved if the covering area is a bending area or a creasing area. If the cover region is a seam region, then only a particularly small or no thickening in the seam region is produced when connecting the sheath element to another sheath element, if all the sheath elements to be connected to one another are correspondingly chamfered. Finally, the chamfered edge of the sheathing element contributes to the thickness or the weight of the structure having at least two sheathing elements connected to one another, which is as constant as possible.
The invention further relates to a preparation machine with which the method for connecting preparation sheath elements, which is configured as described above, can be carried out, wherein the preparation machine has a covering element transport device with which the covering element can be applied to the outer surface of the sheath element. If such a preparation machine is used to apply the covering element to the sheathing element, this results in a working result with reproducible high quality. Furthermore, the application of the covering element can be carried out particularly quickly, in particular at least partially automatically.
In a further embodiment, the preparation machine has a stretching device, by means of which the covering element can be stretched before application to the outer surface. The covering element, in particular if the adhesive tape is concerned here, is therefore stretched in the stretching device and/or by means of the stretching device before it is applied and possibly pressed onto the outer surface of the sheathing element. The stretching device has, for example, two roller pairs in the longitudinal direction of the adhesive tape or in the transport direction of the adhesive tape, which have rollers rolling in opposite directions on top of one another, between which the covering element or the adhesive tape is guided through. Here, a roller pair of the roller pairs which is arranged closer to the jacket element runs at a higher circumferential speed than the other roller pair of the roller pairs; as a result, the adhesive tape is stretched between the roller pairs as intended. As a result, the covering element can be applied to the desired covering region, in particular, in a particularly precise manner, in particular along the outer edge of the sheathing element, as a result of which the quality of the operating result is increased again.
It is furthermore conceivable that the extent of the stretching of the covering element in/by the stretching device, for example between the roller pairs, can be adjusted as desired. In particular, the degree of stretching can be adjusted steplessly. This means that the covering element or the first part of the adhesive tape is stretched to a different extent than the second part of the covering element in a single process step for applying the covering element to the sheathing element. Here, two parts of the covering element are applied to the sheath element without the sheath element being capped between the two parts. The strip-shaped covering element, i.e. for example an adhesive tape, can therefore be stretched comparatively strongly for covering the relatively small radius of the sheathing element in a particularly effective manner. However, and in particular in the case of a previous uncovering of the cover element, the cover element may be stretched less intensely for covering a relatively large radius of the sheath element particularly effectively. Furthermore, it can be provided that the covering element is not (pre-) stretched for applying it to a straight section of the sheath element. The purpose of such stretching or pretensioning of the covering element or the adhesive tape is to be able to apply the adhesive tape without stress at/in the small rounding and thus it does not fall off unintentionally any more.
According to a further embodiment of the preparation machine, it is provided that the preparation machine has a machine, in particular an edging machine, for machining the outer edge of the sheathing element. In other words, the preparation machine is based on an edging machine known from the prior art, wherein the preparation machine is equipped with a covering element conveyor and, if necessary, with the stretching device. This results in an advantageously particularly low training effort for the operator of the preparation machine, since the operator is familiar with the bevelling machine. Furthermore, the addition of the beveling machine for producing the preparation machine is particularly inexpensive in a particularly advantageous manner. As a result of this, the preparation machine is particularly ecologically and economically advantageous. In addition, the preparation machine is particularly easy to construct, so that it can be used particularly effectively.
Furthermore, it is conceivable to use known control means, such as pedals, for controlling the preparation machine, by means of which the feed speed of the preparation machine, similar to that of the edging or sewing machine, is controlled by the operator. The operator can thus machine the sheathing element at a less complex position of the sheathing element (for example at a straight edge section) at a higher feed rate (for example, to set the covering element) and at a more complex position of the sheathing element (for example at a non-straight edge section) at a lower feed rate.
The invention further relates to a method for connecting at least two sheathing elements. The connecting method comprises the step of preparing the sheathing elements to be connected to one another by means of a method for connection preparation constructed as described above. After the sheath elements have been prepared according to the method for connecting described above, the sheath elements are arranged in the desired relative position, the cover regions being brought into register with one another during the arrangement of the sheath elements. The sheathing elements arranged in the desired relative position with respect to one another are then connected to one another, in particular sewn together, wherein for connecting the sheathing elements connecting means are used which drive the connecting elements (such as threads, rivet elements, screw elements, etc.) and/or connecting auxiliary elements (such as sewing needles, etc.) through the respective adhesive-free regions of the sheathing elements to be connected to one another. As a result, the connecting means, in particular the connecting element and/or, if appropriate, the connecting auxiliary element, are not contaminated by adhesive. The connecting means is, for example, a sewing machine, which drives a connecting element formed as a thread by means of a sewing needle through a sheath element. As a result, advantageously particularly low maintenance and/or cleaning expenditure for the sewing machine arises on account of the adhesive-free regions of the sheathing elements to be connected to one another. The sewing machine is therefore undesirably, because of uneconomical, particularly short of stopping or unused time.
In a further embodiment of the joining method, the application of the covering element to the covering region is carried out by means of a preparation machine which is designed as described above.
Further advantages, features and details of the invention can be derived from the following description of possible embodiments and with the aid of the drawings. The features and feature combinations mentioned above in the description and shown below in the description of the figures and/or in the figures individually can be used not only in the respectively specified combination but also in other combinations or alone without leaving the scope of the invention.
Drawings
Wherein:
fig. 1 shows a sheath element with a cover region in a perspective view;
fig. 2 shows the sheathing element in a perspective view, wherein the covering region is covered by means of a covering element;
fig. 3 shows the sheath element together with a covering element applied to the covering region in a perspective view, wherein the sheath element and the covering element end flush with one another;
fig. 4 shows the sheathing element with the covering element applied to the covering area in a perspective view, the outer edge of the sheathing element and the outer edge of the covering element being separated from one another;
fig. 5 shows, in a perspective and partial view, a preparation machine by means of which the covering element is applied to the sheath element; and is
Fig. 6 shows the preparation machine with the cover element transport device in a perspective view.
In the figures identical/functionally identical elements are provided with the same reference numerals.
Detailed Description
A method for connecting preliminary sheath elements 1, a preparation machine 2 and a method for connecting two sheath elements 1 together to one another are described below.
The sheathing element is first provided (see fig. 1). As can be seen, the sheathing element 1 is flat and has a circumferential outer edge 3. The circumferential outer edge 3 is at least partially formed without any curvature. It can therefore be provided that the outer edge is formed only by straight sections. In the present example, the sheathing element 1 is a leather element and/or a textile element, wherein the sheathing element 1 is thus provided as a component of a sheathing, such as a leather upholstery, for an interior of a motor vehicle. For this purpose, it is provided that the sheath element 1 is connected, in particular sewn, to at least one further sheath element (not shown). The sheathing element 1 therefore has a seam region 4, which is designed to have a connecting seam, by means of which the sheathing elements are connected to one another.
Furthermore, it is provided that the sheathing element 1 or a structure comprising a plurality of sheathing elements with the sheathing element 1 is glued to a surface, for example, in the interior of a motor vehicle. For this purpose, an adhesive, such as a hot melt adhesive and/or a hot adhesive, is applied to the outer surface 5 of the sheathing element 1. In order to avoid that tools, such as sewing machines, used to connect the sheathing elements 1 to one another come into contact with the adhesive in an undesirable manner, it is provided that the region that comes into contact with the respective tool or sewing machine, in this case the seam region 4, is designed as an adhesive-free region 6. For this purpose, in the method, a covering region 7 is identified, which covering region 7 is covered by means of a covering element 8 before the adhesive is applied to the outer surface 5 of the sheathing element 1. In the present example, the seam region 4 is identified or defined as a masking region 7, such that the seam region 4 is an adhesive-free region 6, by: the masking region 7 is configured as the adhesive-free region 6 after the application of adhesive to the outer surface 5. It is conceivable here for the respective sheathing element 1 to have more than one adhesive-free region 6 or a plurality of regions 6 spaced apart from one another on the outer surface 5. This means that not only the seam region 4 can be designed as an adhesive-free region 6, but alternatively or additionally a further region on the outer surface 5 can be designed as a corresponding adhesive-free region. For example, the region of the sheathing element 1 in which the sheathing element 1 is crimped or bent, i.e., the crimped region, can be formed as such an adhesive-free region 6.
The sheathing element 1 is applied, for example, to a surface by means of an adhesive, which is therefore applied not only directly to the outer surface 5 of the sheathing element 1 but also to the outer surface 9 of the covering element 8. For this purpose, the adhesive is rolled onto the outer surface 5 of the sheathing element 1 and the outer surface 9 of the covering element 8, for example by means of transfer rollers. The covering element 8 is then removed from the covered covering region 7, whereby the adhesive-free region 6 is formed on the outer surface 5 of the sheathing element 1. As already explained, the seam region 4 is covered when the covering element 8 is applied to the outer surface 5 of the sheath element 1, so that after the removal of the covering element 8, the seam region 4 is an adhesive-free region 6.
The covering element is configured as a strip and has a constant thickness along its entire longitudinal extension. Here, a green tape is used as the masking member 8. In order to ensure that the covering element 8 or the green tape is placed particularly securely on/at the outer surface 5 of the sheathing element 1, it is provided that the covering element 8 is applied or applied to the covering region 7 and pressed against the outer surface 5 of the sheathing element 1 by means of a punch, a roller or the like. The pressing element 10 can be part of the preparation machine 2 (see fig. 5 or 6). Alternatively or additionally, a pressing element 10 can be used, which is used manually, for example by a worker, when it is released from the preparation machine 2.
As can be seen from the figures, the cover element 8 is applied to the jacket element parallel to the outer edge 3 of the jacket element. In this case, (see fig. 2, 3, 5, 6) the sheathing element 1 and the covering element 8, such as an adhesive tape, end at least partially flush with one another. Alternatively or additionally (see fig. 4), the covering element 8 or the adhesive tape and the outer edge 3 of the sheathing element 1 can be arranged separately from one another. It is provided here that the width of the cover region 7 can be adjusted from 5mm to 20mm, in particular from 7mm to 15mm. For this purpose, the stop element 11 shown in fig. 5 can be used. The stop element 11 can be, for example, a component of the preparation machine 2. As an alternative or in addition, a stop element 11 can be provided which can be designed separately from the preparation machine 2. In order to be able to adjust the width of the cover region 7 between the mentioned dimensions, it is therefore provided that the stop element 11 is designed to be adjustable. The width of the cover element 8 should therefore be selected according to the desired width of the cover region 7 and/or be cut in the longitudinal direction to the desired width of the cover region 7 before application to the outer surface 5 of the sheath element 1. This can be done continuously by means of a cutting device (for example as part of the preparation machine 2) or when providing the covering element 8, for example when sizing the covering element 8 provided as a rolled or wound fabric.
Fig. 4 shows the sheathing element 1 with the covering element 8 applied thereto, the outer edges 3 of the sheathing element 1 and the covering element 8 being separated from one another along the outer edges 3 of the sheathing element 1. This means that fig. 4 shows how the cover element 8 is applied along the outer edge 3, starting from the circumferential outer edge 3 of the sheathing element 1, offset inwards. Alternatively or additionally, it can be provided, for example, in part, that the covering element 8 projects beyond the outer edge 3 of the sheathing element 1. This prevents, for example, adhesive applied to the outer surface 5 of the sheathing element 1 from flowing down the outer surface 5 and onto the outer end face of the sheathing element 1.
Before the covering element 8 or adhesive tape is applied, it can be provided that the material of the sheath element 1 in the covering region 7 is partially cut away, for example, until the thickness or the thickness of the sheath element 1 in the covering region 7 is half the original thickness of the sheath element 1. Such a method is also referred to as "bevelling" and serves to avoid doubling the overall thickness of the construction with two sheath elements 1 when connecting two sheath elements 1.
The preparation machine 2 is partially shown in fig. 5 and in fig. 6. In the present exemplary embodiment, the preparation machine 2 is based on an edging machine, wherein the edging machine is designed to partially cut off the material of the sheathing element 1 in the covering region 7. Such a beveling machine is extended or retrofitted to a preparation machine 2 by: a cover element transport device 12 is arranged (see fig. 6). This means that the preparation machine 2 has an edge trimmer, wherein the edge trimmer is provided with a cover element conveyor 12, as a result of which the preparation machine 2 is produced. The cover element transport device 12 has a carrier 13, in particular a reel carrier for the cover element 8, in particular an adhesive tape, provided on a reel 14. In the ready-to-operate state of the preparation machine 2, the covering element 8, in this case a tape, is held on the preparation machine 2 by means of a holder 13 in a rotatable manner. Starting from the support 13, the covering element 8 or the adhesive tape is then guided into a working area 15 of the preparation machine 2, in which the covering element 8 is applied to the covering area 7. In this case, it can be provided that the covering element 8 is deflected by means of a roller element, in particular by means of a pressing element 10, so that the covering element 8 is applied to the desired covering region 7 and is pressed in particular at the same time when the sheathing element 11 is guided through the working region 15. It is therefore suitable for the pressing element 10 to have a dual function, namely that it serves as a deflecting element for the covering element 8 and that it serves to press the covering element 8 against the outer surface 5.
According to another embodiment, the preparation machine 2, in particular the cover element transport device 12, has a cover element storage space. This covering element storage compartment can be closed off from the environment by means of a covering element, so that dirt and/or other undesired materials are prevented from penetrating into the covering element storage compartment. This offers the advantage that the covering element 8, which is then stored in the covering element storage compartment of the preparation machine 2, is protected against contamination. In addition, the covering element 8 is thus protected particularly reliably against undesired falling off from the preparation machine 2. It is provided here that the cover element 8, for example a tape, protrudes at least from the cover element storage compartment in such a way that it can be processed when the cover element 8 is stored in the cover element storage compartment. For example, a covering element 8, which is formed as a tape and is located inside the covering element storage compartment, can be unwound from the tape reel. The portion of the adhesive tape unwound from the reel is guided out of the storage chamber of the cover element and up to the sheath element, for example by means of a rolling device.
The method described above for preparing the sheath element 1 can be carried out at least semi-automatically by means of the preparation machine 2, wherein, for example, a worker guides the sheath element 1 through a working area 15, i.e., through the preparation machine 2. In this case, the worker guides the sheathing element 1 through the working area 15 of the preparation machine 2 in such a way that the sheathing element 1, in particular its outer edge 3, moves past the stop element 11 (see fig. 5) in abutment. This ensures that the covering element 8 or the adhesive tape is applied uniformly to the sheathing element 1 parallel to the outer edge 3.
The drawing does not show a drawing device, which is in particular designed as a component of the preparation machine 2. By means of the stretching device, the covering element 8 or the adhesive tape can be stretched before being applied to the outer surface 5 of the sheath element 1. As a result of the stretching of the covering element 8 or the adhesive tape, the adhesive tape can in particular be applied as it is to the outer edge 3 of the sheathing element 1.
In the method for connecting at least two such sheathing elements 1, it is therefore provided that the sheathing elements 1 are prepared for connection, in particular to one another, in respective connection regions, which are respective seam regions 4. This means that the respective seam region 4 of the sheathing element 1 is designed as a respective adhesive-free region 6 by: in particular, the corresponding covering region 7 is identified as the seam region 4 by means of the preparation machine 2 and is therefore covered with a covering element 8 or with adhesive tape. The corresponding outer surface 5 of the sheathing element 1 is then coated with an adhesive, for example by: the adhesive is rolled onto the respective outer surface 5. Thereafter, the covering element 8 or the adhesive tape is then pulled off the covering region 7 or the seam region 4 without any traces, and the seam regions 4 are then brought into register with one another by: the sheath elements 1 are arranged in the desired relative position with respect to one another and the sheath elements 1 are then connected to one another, in particular sewn together. For the joining or sewing, in particular a sewing machine (not shown) is used, which drives a sewing needle and/or a thread through the seam region 4 or the sheath element 1 for joining the sheath element 1. The thread is left as a connecting element, whereby a seam is formed in the seam region 4 of the respective sheathing element 1. In this case, the sewing needle is advantageously not in contact with the adhesive, and in particular the adhesive is not heated by the needle friction and therefore softens or liquefies. Consequently, no adhesive is carried by the needle reciprocating linear movement to the visible side surface of the sheathing element 1, which is separated from the outer surface 5 by the material thickness or the material thickness of the sheathing element 1, whereby cleaning of the sewing machine and/or cleaning of the visible side surface is advantageously dispensed with.
List of reference numerals:
1. sheathing element
2. Preparation machine
3. Outer edge
4. Seam region
5. Outer surface of the sheathing element
6. Adhesive free zone
7. Covering area
8. Covering element
9. Outer surface of the covering element
10. Pressing element
11. Stop element
12. Cover element conveying device
13. Support frame
14. Reel spool
15. Work area
Claims (15)
1. Method for connecting a preliminary sheathing element (1), having the following steps:
-determining a covering area (4, 7) of an outer surface (5) of the sheath element (1);
-applying a covering element (8) onto the covering area (4, 7);
-applying adhesive in the form of a surface to the outer surface (5) of the sheathing element (1) and to a covering element (8) covering the covering region (4, 7);
-removing the covering element (8) from the covering area (4, 7); the covering region (4, 7) is thereby designed as an adhesive-free region (6) of the outer surface (5) of the sheathing element (1).
2. The method of claim 1, wherein the first and second light sources are selected from the group consisting of,
it is characterized in that the preparation method is characterized in that,
the covering region (7) is defined such that the seam region (4) of the sheathing element (1) is covered by the covering element (8).
3. The method according to claim 1 or 2,
it is characterized in that the preparation method is characterized in that,
the covering region (4) is defined such that the crimp region of the sheathing element (1) is covered by the covering element (8).
4. The method according to any one of the preceding claims,
it is characterized in that the preparation method is characterized in that,
a covering element (8) applied to the covering region (4, 7) is pressed onto the outer surface (5) of the jacket element (1) by means of a pressing element (10).
5. The method according to any one of the preceding claims,
it is characterized in that the preparation method is characterized in that,
the width of the cover element (4, 7) can be adjusted from 5mm to 20mm by means of a stop element (11).
6. The method according to any one of the preceding claims,
it is characterized in that the preparation method is characterized in that,
the covering regions (4, 7) are defined such that the sheathing element (1) is covered by the covering element (8) along the outer edge (3) of the sheathing element (1).
7. The method of claim 6, wherein the first and second light sources are selected from the group consisting of,
it is characterized in that the preparation method is characterized in that,
the covering element (8) is applied to the covering regions (4, 7) in such a way that the outer edges of the covering element (8) and the outer edges (3) of the sheathing element (8) end flush with one another.
8. The method according to claim 6 or 7,
it is characterized in that the preparation method is characterized in that,
the covering element (8) is applied to the covering regions (4, 7) in such a way that the outer edges of the covering element (8) and the outer edges (3) of the sheathing element (1) are separated from one another.
9. The method of claim 8, wherein the first and second light sources are selected from the group consisting of,
it is characterized in that the preparation method is characterized in that,
the covering element (8) is applied to the covering regions (4, 7) in such a way that the outer edge (3) of the sheathing element (1) protrudes beyond the outer edge of the covering element (8).
10. The method according to any one of the preceding claims,
it is characterized in that the preparation method is characterized in that,
the material of the sheathing element (1) in the covering regions (4, 7) is partially cut off before the covering element (8) is applied.
11. A preparation machine (2) by means of which a method for connecting preparation sheath elements (1) according to one of the preceding claims can be carried out, wherein the preparation machine (2) has a covering element transport device (12) by means of which a covering element (8) can be applied to an outer surface (5) of the sheath element (1).
12. The preparation machine (2) according to claim 11,
it is characterized in that the preparation method is characterized in that,
a stretching device by means of which the covering element (8) can be stretched before application onto the outer surface (5).
13. Preparation machine (2) according to claim 11 or 12,
it is characterized in that the preparation method is characterized in that,
the preparation machine (2) has a machine for machining the outer edge (3) of the sheathing element (1).
14. Method for connecting two sheathing elements (1), comprising the following steps:
-preparing sheath elements (1) to be connected to each other by means of a method for connection preparation constructed according to any one of claims 1 to 10,
-arranging the sheathing element (1) in a desired relative position;
-connecting the sheath elements (1) by means of connecting means which drive the connecting elements through the respective adhesive-free regions (6) of the sheath elements (1) to be connected to one another.
15. The method as set forth in claim 14, wherein,
it is characterized in that the preparation method is characterized in that,
the process of applying a covering element (8) to the covering region (4, 7) is carried out by means of a preparation machine (2) constructed according to any one of claims 11 to 13.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE102021108189.0 | 2021-03-31 | ||
| DE102021108189.0A DE102021108189A1 (en) | 2021-03-31 | 2021-03-31 | METHOD OF CONNECTING PREPARATION OF A REFERENCE ELEMENT, PREPARATION MACHINE AND METHOD OF CONNECTING TWO REFERENCE ELEMENTS |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN115142203A true CN115142203A (en) | 2022-10-04 |
Family
ID=83282397
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210155840.XA Pending CN115142203A (en) | 2021-03-31 | 2022-02-21 | Method for connecting preliminary sheath elements, preliminary machine and method for connecting two sheath elements |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN115142203A (en) |
| DE (1) | DE102021108189A1 (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR19990039795A (en) * | 1997-11-14 | 1999-06-05 | 김헌출 | Sewing machine needle plate and sewing method using the same |
| WO2014208079A1 (en) * | 2013-06-28 | 2014-12-31 | 株式会社デンソー | Vehicular interior component, and method of manufacturing vehicular interior component |
| DE202016101644U1 (en) * | 2016-03-24 | 2017-06-27 | Coroplast Fritz Müller Gmbh & Co. Kg | Overmouldable adhesive tape |
| US20190218698A1 (en) * | 2017-06-09 | 2019-07-18 | Engineered Floors LLC | Stabilization of looped fabric surfaces by fine-scale embossing |
| CN211734679U (en) * | 2019-12-17 | 2020-10-23 | 浙江金路达皮具有限公司 | Automatic leather sewing device |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3834602A1 (en) | 1988-10-11 | 1990-04-19 | Kessler & Luch Gmbh | Apparatus for applying tape especially to narrow edge faces |
| DE10342658A1 (en) | 2003-09-16 | 2005-04-14 | Dat Automatisierungstechnik Gmbh | Adhesive tape application method in which adhesive tape is automatically fed from reserve roll to feeder and guidance unit when reserve threshold is undershot |
| US9555441B2 (en) | 2013-05-03 | 2017-01-31 | Abb Schweiz Ag | Dynamic synchronized masking and coating |
| DE102016103086A1 (en) | 2016-02-23 | 2017-08-24 | Dr. Ing. H.C. F. Porsche Aktiengesellschaft | Production of a cover for interior components of a vehicle |
-
2021
- 2021-03-31 DE DE102021108189.0A patent/DE102021108189A1/en active Pending
-
2022
- 2022-02-21 CN CN202210155840.XA patent/CN115142203A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR19990039795A (en) * | 1997-11-14 | 1999-06-05 | 김헌출 | Sewing machine needle plate and sewing method using the same |
| WO2014208079A1 (en) * | 2013-06-28 | 2014-12-31 | 株式会社デンソー | Vehicular interior component, and method of manufacturing vehicular interior component |
| DE202016101644U1 (en) * | 2016-03-24 | 2017-06-27 | Coroplast Fritz Müller Gmbh & Co. Kg | Overmouldable adhesive tape |
| US20190218698A1 (en) * | 2017-06-09 | 2019-07-18 | Engineered Floors LLC | Stabilization of looped fabric surfaces by fine-scale embossing |
| CN211734679U (en) * | 2019-12-17 | 2020-10-23 | 浙江金路达皮具有限公司 | Automatic leather sewing device |
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| Publication number | Publication date |
|---|---|
| DE102021108189A1 (en) | 2022-10-06 |
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