CN108357195A - A kind of conduction band that can be suitable for high-precision PLATE SCREAM PRINTING equipment - Google Patents

Abstract

The invention discloses a kind of conduction bands that can be suitable for high-precision PLATE SCREAM PRINTING equipment, including the upper layer TPU layer for setting gradually and being bonded together from top to bottom, stereo fabric layer, middle level TPU layer and rubber fabric layer, the stereo fabric layer is the skeleton of the conduction band, join fabric construction including multilayer angle, it is formed with intermediate course between two layers adjacent of weft yarn of multilayer angle connection fabric construction, the intermediate course is made of more aramid yarns parallel to each other, the aramid yarn is threaded through between two layers of weft yarn, the aramid yarn is vertical with the weft yarn, the not bent intertexture in the wrong of foundation machine cloth yarn of the aramid yarn and multilayer angle connection fabric construction.The present invention can greatly improve the tensile strength of conduction band, extend the service life of conduction band；Keep the elastic expansion range of the conduction band smaller simultaneously, is not easy to relax during use, the transmission precision of printing equipment can be improved.

Description

A guide belt suitable for high-precision flat screen printing equipment

technical field

The invention relates to a conveyor belt, in particular to a guide belt applicable to high-precision flat screen printing equipment.

Background technique

The printing guide belt is an extremely important part of the printing equipment. The function of the guide belt is to convey the items such as fabrics that need to be printed. The performance of the guide belt directly determines the printing quality. In actual production, the guide belt is often required to have higher strength and The thickness is uniform, and the elastic deformation of the guide belt is not easy to be too large. Generally, the extension of each meter of the guide belt under the working pre-tension tension does not exceed 10 mm. Zhou Bingguang discloses a conduction belt in the Chinese patent document CN205293939U. The conduction belt is composed of two layers of tissue, namely a closed mixed layer and a PU layer. The PU layer has certain lines, which are used to improve friction and facilitate transmission on slopes. Object; people such as Chu Jian'an disclose a kind of ring-shaped printing conduction belt with border in Chinese patent document CN203581804U, the characteristic of this conduction belt is: all be provided with border on the body both sides edge of conduction belt, mainly use It is used to solve problems such as fluffing and delamination at the edge of the conduction band.

The printing guide belts currently on the market often have problems such as low service life, low overall tensile strength of the guide belt, easy relaxation, and insufficient transmission accuracy, which greatly reduces the quality of printed products. At the same time, the printing guide belt is prone to static electricity after long-term operation. The existence of static electricity is extremely harmful, ranging from affecting the quality of printing patterns, to damaging the electronic accessories of the machine, and even causing a fire.

Contents of the invention

In order to solve the technical problems in the known technology, the present invention provides a guide belt suitable for flat screen printing equipment. The tensile strength and elastic deformation of the guide belt can make it have higher transmission accuracy and longer service life.

The technical solution adopted by the present invention to solve the technical problems existing in the known technology is: a conduction belt applicable to high-precision flat screen printing equipment, including an upper TPU layer arranged sequentially from top to bottom and bonded together, Three-dimensional fabric layer, middle layer TPU layer and rubber-impregnated fabric layer, the three-dimensional fabric layer is the skeleton of the conduction belt, including a multi-layered angle-linked fabric structure, between two layers of weft yarns adjacent to the multi-layered angle-linked fabric structure An interlayer is formed, the interlayer is composed of a plurality of aramid yarns parallel to each other, the aramid yarns are passed between two layers of weft yarns, the aramid yarns are perpendicular to the weft yarns, The aramid yarns interweave with the basic machine cloth yarns of the multi-layer gusset fabric structure without bending.

Part of the warp yarns of the basic woven yarns of the multi-layer gusset fabric structure is formed by conductive threads, and conductive particles connected to the conductive threads are mixed in the upper TPU layer.

The basic woven yarns of the multi-layer gusset fabric structure are composed of the conductive filaments and polyester yarns.

The warp density of the basic machine cloth yarn of the multi-layer corner-linked fabric structure is 8-12 threads/cm, the weft density is 7-9 threads/cm, and the basic machine-cloth yarn of the multi-layer corner-linked fabric structure The polyester yarn in the warp adopts a multifilament structure with a fineness of 500dtex to 1500dtex, and the weft yarn adopts a monofilament structure with a diameter of 0.2 to 0.4mm.

The aramid yarn adopts a multifilament structure, the fineness is 1000dtex-2000dtex, and the warp density is 8-12 threads/cm.

The diameter of the conductive wires is 0.08-0.1 mm, and the arrangement density is 3-5 wires/cm.

High polymer binders are used between the upper TPU layer and the three-dimensional fabric layer, between the three-dimensional fabric layer and the middle TPU layer, and between the middle TPU layer and the dipped fabric layer Perform interactive dip bonding.

The thickness of the conduction belt is 2.9-3.6mm, the thickness of the upper TPU layer is 1.2-1.6mm, the thickness of the middle TPU layer is 0.4-0.6mm, and the thickness of the dipped fabric layer is 0.2-0.5mm .

The advantages and positive effects of the present invention are: by adding a three-dimensional fabric layer with higher strength and higher elastic modulus in the guide belt, the tensile strength of the guide belt is greatly improved, and the service life of the guide belt is prolonged; at the same time The elastic expansion and contraction of the guide belt is small, and it is not easy to relax during use, which can improve the transmission accuracy of the printing equipment. By adding conductive particles to the upper TPU layer and adding conductive filaments to the three-dimensional fabric, the resistance of the conduction band is greatly reduced, which is beneficial to the discharge of static electricity generated during the operation of the conduction band and reduces the accumulation of static electricity in the conduction band. Therefore, the present invention also With anti-static function, it can greatly improve the stability and safety of printing equipment.

Description of drawings

Fig. 1 is a structural representation of the present invention;

Fig. 2 is a schematic diagram of the three-dimensional fabric layer structure of the present invention.

In the figure: 1. Upper TPU layer; 2. Three-dimensional fabric layer; 2-1. Polyester yarn in warp yarn; 2-2. Weft yarn; 2-3. Aramid yarn; 2-4. Conductive yarn; 3. Middle layer TPU layer; 4, dipped fabric layer.

Detailed ways

In order to further understand the invention content, characteristics and effects of the present invention, the following examples are given, and detailed descriptions are as follows in conjunction with the accompanying drawings:

Please refer to Figures 1 to 2, a guide belt suitable for high-precision flat screen printing equipment, including an upper TPU (thermoplastic polyurethane) layer 1, a three-dimensional fabric layer 2, The middle TPU layer 3 and the dipped fabric layer 4, the three-dimensional fabric layer is the skeleton of the conduction belt, including a multi-layer angle-linked fabric structure, between two layers of weft yarns 2-2 adjacent to the multi-layer angle-linked fabric structure An interlayer is formed between them, and the interlayer is composed of a plurality of aramid yarns 2-3 parallel to each other, and the aramid yarns 2-3 are threaded between two layers of weft yarns 2-2. The aramid yarn 2-3 is perpendicular to the weft yarn 2-2, and the aramid yarn 2-3 interweaves with the basic machine cloth yarn of the multi-layer gusset fabric structure without bending.

A better solution: In order to avoid static electricity accumulation and eliminate static electricity, a part of the warp yarns of the basic machine cloth yarns of the multi-layer angle-linked fabric structure is formed by conductive filaments 2-4, and the upper TPU layer 1 Conductive particles connected to the conductive threads 2-4 are mixed in it. Furthermore, in order to make the three-dimensional fabric layer 2 have higher strength and elastic recovery ability, the basic machine cloth yarn of the multi-layer angular fabric structure is composed of the conductive filament 2-4 and polyester yarn, that is, the weft yarn 2 -2 and warp yarns other than conductive yarns 2-4 are formed using polyester yarns. The test results show that the three-dimensional fabric layer 2 adopts warp yarns, weft yarns and aramid yarns of the following sizes and densities; The weft density is 7 to 9 threads/cm, the polyester yarn 2-1 in the warp yarn of the basic machine cloth yarn of the multi-layer corner-linked fabric structure adopts a multifilament structure, and the fineness is 500dtex to 1500dtex, and the weft yarn 2-2 It adopts monofilament structure with a diameter of 0.2-0.4mm. The aramid yarn 2-3 adopts a multifilament structure, its fineness is 1000dtex-2000dtex, and its warp density is 8-12 yarns/cm. The diameter of the conductive filaments 2-4 is 0.08-0.1 mm, and the arrangement density is 3-5 wires/cm. The following dimensions are more suitable for the conduction band, the thickness of the conduction band is 2.9-3.6 mm, the thickness of the upper TPU layer 2-1 is 1.2-1.6 mm, and the thickness of the middle TPU layer 2-3 is 0.4-0.6 mm, The thickness of the dipped fabric layer 2-4 is 0.2-0.5 mm. In order to enhance the integrity of the conduction belt, between the upper TPU layer 1 and the three-dimensional fabric layer 2, between the three-dimensional fabric layer 2 and the middle TPU layer 3, and between the middle TPU layer 3 and the dipped The adhesive fabric layers 4 are all used for interactive immersion bonding with high polymer binders.

Below in conjunction with embodiment the present invention is described in more detail:

Example 1:

The thickness of the guide belt is 2.9 mm, the thickness of the upper TPU layer is 1.2 mm, the thickness of the middle TPU layer is 0.4 mm, and the thickness of the dipped fabric layer is 0.2 mm.

The warp yarn of the basic machine cloth yarn of the three-dimensional fabric layer has two layers, the warp yarn is made of polyester yarn, the weft yarn is made of polyester yarn, the center interlayer is made of aramid yarn, and the warp density of the basic machine cloth yarn of the multi-layer angular fabric structure is 8 Roots/cm, the weft density is 7 threads/cm, the polyester yarn in the warp yarn of the basic machine cloth yarn of the multi-layer corner-linked fabric structure adopts a multifilament structure, and the fineness is 500dtex, and the weft yarn adopts a monofilament structure, and the diameter is 0.2 , the denier of the aramid yarn is 1000dtex, and the warp density is 8 threads/cm.

High polymer binders are used between the upper TPU layer and the three-dimensional fabric layer, between the three-dimensional fabric layer and the middle TPU layer, and between the middle TPU layer and the dipped fabric layer Perform interactive dip bonding.

The conduction band sample was cut 240 mm long and 50 mm wide. A tensile test was carried out to measure the sample breaking strength of 13885N and the breaking elongation of 8.2 mm.

The improvement scheme of above-mentioned embodiment 1:

A part of the polyester yarn in the warp yarn of the three-dimensional fabric layer is replaced with a conductive thread, the diameter of the conductive thread is 0.08mm, and the arrangement density is 3/cm, and the conductive particles connected with the conductive thread are mixed in the upper TPU layer.

The cut sample is 240mm in warp length, 50mm in width, and the tensile strength is pre-tensioned at 5N. The measured breaking strength of the sample was 13756N, and the breaking elongation was 8.3mm. According to the static electricity test, the improved conduction tape has faster static electricity weakening, which can effectively avoid static electricity accumulation and eliminate static electricity.

The comparative scheme of above-mentioned embodiment 1:

Remove the three-dimensional fabric layer, cut the sample with a warp length of 240mm and a width of 50mm, and pre-tension the tensile strength to 5N. The measured breaking strength of the sample was 4376N, and the breaking elongation was 13.8mm.

Example 2:

The thickness of the guide belt is 3.1mm, the thickness of the upper TPU layer is 1.4mm, the thickness of the middle TPU layer is 0.5mm, and the thickness of the dipped fabric layer is 0.3mm.

The warp yarn of the basic machine cloth yarn of the three-dimensional fabric layer has two layers, the warp yarn is made of polyester yarn, the weft yarn is made of polyester yarn, the center interlayer is made of aramid yarn, and the warp density of the basic machine cloth yarn of the multi-layer corner-linked fabric structure is 9 Roots/cm, the weft density is 8 threads/cm, the polyester yarn in the warp yarn of the basic woven yarn of the multi-layer corner-linked fabric structure adopts a multifilament structure, and the fineness is 900dtex, and the weft yarn adopts a monofilament structure, and the diameter is 0.3 , the fineness of the aramid yarn is 1300dtex, and the warp density is 9 threads/cm.

High polymer binders are used between the upper TPU layer and the three-dimensional fabric layer, between the three-dimensional fabric layer and the middle TPU layer, and between the middle TPU layer and the dipped fabric layer Perform interactive dip bonding.

The conduction band sample was cut 240 mm long and 50 mm wide. A tensile test was carried out to measure the sample breaking strength of 15634N, and the breaking elongation of 8.5 mm.

The improvement scheme of above-mentioned embodiment 2:

A part of the polyester yarn in the warp yarn of the three-dimensional fabric layer is replaced with a conductive thread, the diameter of the conductive thread is 0.10mm, and the arrangement density is 4/cm, and the conductive particles connected with the conductive thread are mixed in the upper TPU layer.

The cut sample is 240mm in warp length, 50mm in width, and the tensile strength is pre-tensioned at 5N. The measured breaking strength of the sample was 15368N, and the breaking elongation was 8.2mm. According to the static electricity test, the improved conduction tape has faster static electricity weakening, which can effectively avoid static electricity accumulation and eliminate static electricity.

The comparative scheme of above-mentioned embodiment 2:

Remove the three-dimensional fabric layer, cut the sample with a warp length of 240mm and a width of 50mm, and pre-tension the tensile strength to 5N. The measured breaking strength of the sample was 4603N, and the breaking elongation was 13.4mm.

Example 3:

The thickness of the guide belt is 3.5 mm, the thickness of the upper TPU layer is 1.4 mm, the thickness of the middle TPU layer is 0.5 mm, and the thickness of the dipped fabric layer is 0.4 mm.

The warp yarn of the basic machine cloth yarn of the three-dimensional fabric layer has two layers, the warp yarn is made of polyester yarn, the weft yarn is made of polyester yarn, the center interlayer is made of aramid yarn, and the warp density of the basic machine cloth yarn of the multi-layer corner-linked fabric structure is 10 Roots/cm, the weft density is 9 threads/cm, the polyester yarn in the warp yarn of the basic machine cloth yarn of the multi-layer corner-linked fabric structure adopts a multifilament structure, and the fineness is 1200dtex, and the weft yarn adopts a monofilament structure, and the diameter is 0.4 , the denier of the aramid yarn is 1500dtex, and the warp density is 10 threads/cm.

High polymer binders are used between the upper TPU layer and the three-dimensional fabric layer, between the three-dimensional fabric layer and the middle TPU layer, and between the middle TPU layer and the dipped fabric layer Perform interactive dip bonding.

The conduction band sample was cut 240 mm long and 50 mm wide. A tensile test was carried out to measure the breaking strength of the sample to be 16983N, and the breaking elongation to be 8.7 mm.

The improvement scheme of above-mentioned embodiment 3:

A part of the polyester yarn in the warp yarn of the three-dimensional fabric layer is replaced with a conductive thread, the diameter of the conductive thread is 0.10mm, and the arrangement density is 5/cm, and conductive particles connected to the conductive thread are mixed in the upper TPU layer.

The cut sample is 240mm in warp length, 50mm in width, and the tensile strength is pre-tensioned at 5N. The measured breaking strength of the sample was 16793N, and the breaking elongation was 8.6mm. According to the static electricity test, the improved conduction tape has faster static electricity weakening, which can effectively avoid static electricity accumulation and eliminate static electricity.

The comparative scheme of above-mentioned embodiment 3:

Remove the three-dimensional fabric layer, cut the sample with a warp length of 240mm and a width of 50mm, and pre-tension the tensile strength to 5N. The breaking strength of the sample was measured to be 4512N, and the breaking elongation was 13.6mm.

Example 4:

The thickness of the guide belt is 3.6mm, the thickness of the upper TPU layer is 1.6mm, the thickness of the middle TPU layer is 0.6mm, and the thickness of the dipped fabric layer is 0.5mm.

The basic machine cloth yarn warp of the three-dimensional fabric layer has two layers, the warp yarn is made of polyester yarn, the weft yarn is made of polyester yarn, and the center interlayer is made of aramid yarn. Roots/cm, the weft density is 9 threads/cm, the polyester yarn in the warp yarn of the basic machine cloth yarn of the multi-layer corner-linked fabric structure adopts a multifilament structure, and the fineness is 1500dtex, and the weft yarn adopts a monofilament structure, and the diameter is 0.4 , the fineness of the aramid yarn is 2000dtex, and the warp density is 12 threads/cm.

High polymer binders are used between the upper TPU layer and the three-dimensional fabric layer, between the three-dimensional fabric layer and the middle TPU layer, and between the middle TPU layer and the dipped fabric layer Perform interactive dip bonding.

The conduction band sample is cut 240 mm long and 50 mm wide. A tensile test was carried out to measure the sample breaking strength of 19873N, and the breaking elongation of 7.8 mm.

The improvement scheme of above-mentioned embodiment 4:

A part of the polyester yarn in the warp yarn of the three-dimensional fabric layer is replaced with a conductive thread, the diameter of the conductive thread is 0.10mm, and the arrangement density is 5/cm, and conductive particles connected to the conductive thread are mixed in the upper TPU layer.

The cut sample is 240mm in warp length, 50mm in width, and the tensile strength is pre-tensioned at 5N. The measured breaking strength of the sample was 19624N, and the breaking elongation was 7.9mm. According to the static electricity test, the improved conduction tape has faster static electricity weakening, which can effectively avoid static electricity accumulation and eliminate static electricity.

The comparative scheme of above-mentioned embodiment 4:

Remove the three-dimensional fabric layer, cut the sample with a warp length of 240mm and a width of 50mm, and pre-tension the tensile strength to 5N. The measured breaking strength of the sample was 4612N, and the breaking elongation was 13.3mm.

It can be seen from the above examples that the addition of the three-dimensional fabric greatly improves the tensile strength of the guide belt, improves the service life of the guide belt, reduces the elastic elongation of the guide belt, makes the guide belt difficult to relax during use, and greatly improves the performance of the guide belt. Improve the transmission accuracy of printing equipment, thereby improving the yield rate of printed products. The use of conductive filaments in the three-dimensional fabric and the presence of conductive particles in the upper TPU layer make the conductive tape have an antistatic function, which greatly improves the stability and safety of the printing equipment. Therefore the present invention has extremely high practicability.

Although the preferred embodiments of the present invention have been described above in conjunction with the accompanying drawings, the present invention is not limited to the above-mentioned specific embodiments. The above-mentioned specific embodiments are only illustrative and not restrictive. Those of ordinary skill in the art Under the enlightenment of the present invention, people can also make many forms without departing from the purpose of the present invention and the scope of protection of the claims, and these all belong to the protection scope of the present invention.

Claims (8)

1. a kind of conduction band that can be suitable for high-precision PLATE SCREAM PRINTING equipment, which is characterized in that including setting gradually from top to bottom And upper layer TPU layer, stereo fabric layer, middle level TPU layer and the rubber fabric layer being bonded together,

The stereo fabric layer is the skeleton of the conduction band, including multilayer angle connection fabric construction, joins fabric construction in the multilayer angle Intermediate course is formed between two layers adjacent of weft yarn, the intermediate course is made of more aramid yarns parallel to each other , the aramid yarn is threaded through between two layers of weft yarn, and the aramid yarn is vertical with the weft yarn, the aramid yarn and institute State the not bent intertexture in the wrong of foundation machine cloth yarn of multilayer angle connection fabric construction.

2. the conduction band according to claim 1 that high-precision PLATE SCREAM PRINTING equipment can be suitable for, which is characterized in that described Some in the warp thread of the foundation machine cloth yarn of multilayer angle connection fabric construction is formed by conductive filament, in the upper layer TPU It is mixed with the conductive particle being connect with the conductive filament in layer.

3. the conduction band according to claim 2 that high-precision PLATE SCREAM PRINTING equipment can be suitable for, which is characterized in that described more The foundation machine cloth yarn of layer angle connection fabric construction is made of the conductive filament and Polyester Yarns.

4. the conduction band according to claim 3 that high-precision PLATE SCREAM PRINTING equipment can be suitable for, which is characterized in that described more The foundation machine cloth yarn of layer angle connection fabric construction through it is close be 8~12 pieces/centimetre, filling density is 7~9 pieces/centimetre, the multilayer angle It is 500dtex~1500dtex to join the Polyester Yarns in the warp thread of the foundation machine cloth yarn of fabric construction to use multifilament structure, fiber number, Weft yarn uses monofilament structure, a diameter of 0.2~0.4mm.

5. the conduction band according to claim 1 that high-precision PLATE SCREAM PRINTING equipment can be suitable for, which is characterized in that the virtue Synthetic fibre yarn use multifilament structure, fiber number be 1000dtex~2000dtex, through it is close be 8~12 pieces/centimetre.

6. the conduction band according to claim 2 that high-precision PLATE SCREAM PRINTING equipment can be suitable for, which is characterized in that described to lead A diameter of 0.08~0.1mm of electrical filament, arranging density are 3~5 pieces/centimetre.

7. the conduction band according to claim 1 that high-precision PLATE SCREAM PRINTING equipment can be suitable for, which is characterized in that on described Between layer TPU layer and the stereo fabric layer, between the stereo fabric layer and the middle level TPU layer and the middle level TPU It is all made of high polymer cemented dose between layer and the rubber fabric layer and interacts formula immersion bonding.

8. the conduction band according to claim 1 that high-precision PLATE SCREAM PRINTING equipment can be suitable for, which is characterized in that the conduction band Thickness be 2.9~3.6mm, the thickness of the upper layer TPU layer is 1.2~1.6mm, the thickness of the middle level TPU layer is 0.4~ The thickness of 0.6mm, the rubber fabric layer are 0.2~0.5mm.