CN216993469U - Cutting and conveying equipment capable of preventing one-way cloth sheet from curling - Google Patents

Abstract

According to the cutting and conveying equipment capable of preventing the unidirectional cloth sheet from curling, the plurality of gantries are arranged, so that each point of the unidirectional cloth sheet on the plane is uniformly stressed in the conveying process, and the unidirectional cloth sheet can be effectively prevented from curling and deforming in the weft direction in the conveying process. The distance between the gantries can be adjusted, so that the device can adapt to unidirectional cloth sheets with different breadth sizes, and further avoid the curling of the sheets.

Description

Cutting and conveying equipment capable of preventing one-way cloth sheet from curling

Technical Field

The utility model belongs to the field of cutting and conveying of unidirectional cloth, and particularly relates to unidirectional cloth cross compounding equipment and a unidirectional cloth cross compounding method.

Background

The strength of unidirectional Cloth (Uni-directional Cloth, also called UD Cloth) is concentrated in a specific direction (such as a length direction), and the unidirectional Cloth has excellent performances of softness, small density, wear resistance, impact resistance, cutting resistance, strong toughness and the like, and can be widely used for soft body armor, light body bulletproof helmets, light body bulletproof armor plates, stab resistance, cutting resistance clothing linings and special public explosion-proof facilities. The unidirectional fabrics are sequentially crossed and laminated at a certain angle to be compounded to obtain the composite fabric. The transverse layer in the composite cloth needs to be cut into unidirectional cloth sheets with a certain width by the method described in chinese patent CN113666152A, and then the unidirectional cloth sheets are transferred to the longitudinal unidirectional cloth, and then the unidirectional cloth sheets are heated, pressed and rolled into the composite cloth roll. In this process, the cut transverse unidirectional fabric sheet is generally moved by holding one end of the sheet by a suction cup or a gripper, the tail being a free end. Since the unidirectional fabric is generally prepared from a single-oriented material, the tail of the sheet is easy to have the phenomenon of uneven lotus-leaf edges in the transverse unidirectional fabric picking process as shown in figure 1. Static electricity generated by friction between the non-clamping end and the conveyor belt or longitudinal materials in the moving process can also aggravate the unevenness degree of the materials, and uneven transverse sheets are prone to generating wrinkles in the subsequent laminating hot-pressing process, so that the quality of the composite cloth is affected.

SUMMERY OF THE UTILITY MODEL

In order to solve the problems, the utility model provides a cutting and conveying device capable of preventing a unidirectional cloth sheet from curling, which can avoid the bending phenomenon of a transverse unidirectional cloth sheet in the moving process.

The utility model provides a can prevent that one-way sheet of cloth from curling cut conveying equipment, includes the frame, unwinding device, the conveyer belt, guillootine, be provided with one-way sheet of cloth translation device in the frame, its characterized in that still includes horizontal one-way cloth exhibition device.

The arrangement of the flattening device can enable the transverse unidirectional cloth to be stiffer, and the unidirectional cloth sheet after cutting is prevented from being curled and deformed.

Or, can prevent that one-way cloth sheet is curled cut conveying equipment, including frame, unwinding device, conveyer belt, guillootine, its characterized in that is provided with one-way cloth sheet translation device in the frame, one-way cloth sheet translation device includes a plurality of longmen, every be provided with a plurality of one-way cloth on the longmen and pick up the mechanism

The plurality of gantries with the picking mechanisms are arranged, so that all sides of the unidirectional cloth sheet are stressed, and the phenomenon that the sheet is not supported in the weft direction in the grabbing and moving processes to cause curling and wrinkling can be avoided.

Optionally, the flattening device comprises a nip roll arranged on the conveyor belt, an indentation shaft is arranged on the roll surface of the nip roll, two ends of the nip roll are respectively connected with an air cylinder, and the air cylinder is used for controlling the rise and fall of the nip roll.

In the process of conveying the transverse unidirectional cloth on the conveying belt, the pressure roller plays a role of flattening the unidirectional cloth, the indentation shaft arranged on the roller surface of the pressure roller can press a plurality of indentations crossed with the strip direction in the unidirectional cloth on the unidirectional cloth sheet, the unidirectional cloth sheet can be stiffer in the transverse direction due to the existence of the indentations, the unidirectional cloth sheet can be prevented from being bent in the indentation direction, and therefore the unidirectional cloth sheet is prevented from being curled and folded in a lotus leaf edge shape.

Optionally, the unidirectional cloth picking mechanism is a vacuum chuck.

The unidirectional cloth is usually made of polymer strip materials, the surface is smooth, and the unidirectional cloth deformation caused by overlarge stress of a clamping point of the clamping device can be avoided by adopting the sucking disc as the pickup device.

Optionally, the frame includes the compound frame that sets gradually, conveys the frame and unreels the frame.

Optionally, a slide rail is arranged on the rack, and the unidirectional cloth sheet translation device and the cutting machine are arranged on the slide rail.

Optionally, the positions of the unidirectional cloth picking mechanisms at the two ends of each gantry are adjustable.

The positions of the unidirectional cloth picking mechanisms at the two ends of the gantry are adjustable, so that the picking width of the equipment can be matched with unidirectional cloth sheets with different widths, the picking mechanisms at the edges can play a certain supporting role on the edges of the unidirectional cloth sheets, and the weft curling of the unidirectional cloth sheets is avoided to the greatest extent.

Optionally, the fixed hole of the picking mechanism at the edge of the gantry is in a long strip shape, and the position of the picking mechanism corresponding to the fixed hole can be adjusted in the long strip shape.

Optionally, the distance between the gantries is adjustable.

The distance between the gantries can be adjusted, so that the conveying equipment can adapt to the cutting sample wafers with different length specifications under necessary conditions, the picking mechanism can pick the unidirectional cloth sheets at the edges of the unidirectional cloth sheets as far as possible, and the edges of the unidirectional cloth sheets are prevented from being curled and deformed in the moving process.

Optionally, the cutting and conveying equipment further comprises a hot-pressing compounding device, a cooling roller and a longitudinal rolling device.

The composite platform is used for hot-pressing and compounding longitudinal unidirectional cloth and unidirectional cloth sheets, the cooling roller is used for cooling the hot-pressed weftless cloth, and the longitudinal winding equipment is used for winding the compounded weftless cloth.

A non-woven fabric, comprising a longitudinal layer and a transverse layer, wherein the stretching direction of a polymer in the longitudinal layer is the same as the length direction of the winding of the non-woven fabric, and the stretching direction of a polymer in the transverse layer is the same as the width direction of the winding of the non-woven fabric, and the transverse layer is provided with a plurality of indentations, and the indentations form a certain angle with the stretching direction of the polymer in the transverse layer.

Optionally, the indentations are perpendicular to the direction of stretching of the polymeric tapes in the transverse layer.

The existence of the indentation avoids the curling of a certain side edge of the transverse layer sheet in the production process of the non-woven fabric, and further avoids the unstable wrinkles of the non-woven fabric in the hot pressing process. The existence of indentation makes the whole breadth quality of no latitude cloth more stable, even, and the indentation is less to the influence of no latitude cloth wholeness ability, has avoided the influence of anomalous fold to no latitude cloth bulletproof performance, has improved the bulletproof performance of no latitude cloth.

An impact-resistant article made of a laid fabric according to the preceding paragraph, characterized in that at least two of said laid fabrics are laminated and heat-pressed.

Has the advantages that:

according to the unidirectional fabric cutting and conveying equipment provided by the utility model, the plurality of gantries are arranged, so that each point of a unidirectional fabric sheet on a plane is uniformly stressed in the conveying process, and the unidirectional fabric sheet can be effectively prevented from being curled and deformed in the weft direction in the conveying process; the distance between the gantries can be adjusted, so that the equipment can adapt to unidirectional cloth sheets with different breadth sizes, and the curling of the sheets can be further avoided.

Drawings

Fig. 1 is a schematic view showing a scalloped crimp of a prior art unidirectional fabric sheet.

FIG. 2 is a front view showing a cutting state of the unidirectional fabric cutting and conveying apparatus of the present invention

FIG. 3 is a top view of the cutting status of the unidirectional fabric cutting and conveying device of the present invention

FIG. 4 is a front view of a state of picking up a sheet of the unidirectional fabric cutting conveyance apparatus of the present invention

FIG. 5 is a plan view showing a state where a sheet is picked up in the unidirectional fabric cutting and conveying apparatus of the present invention

FIG. 6 is a partial enlarged view of FIG. 5

FIG. 7 is a schematic structural view of a gantry of a translation device of the unidirectional fabric cutting and conveying equipment of the utility model

FIG. 8 is a cross-sectional view of a non-woven fabric produced by the unidirectional fabric cutting and conveying device of the utility model

The reference numerals are explained below:

10. frame 11, composite frame 12, transmission frame 13, unreeling frame 14 and slide rail

20. Unreeling device 30, conveyor belt 40, cutting machine 41, saw blade 42, pressing mechanism 50, translation device 51, gantry 52, vacuum chuck 53, vacuum chuck fixing hole 60, flattening device 61, nip roller 62, impression shaft 63, air cylinder 64, impression 70, transverse unidirectional cloth 71, sheet 80 and longitudinal unidirectional cloth

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be further clearly and completely described below with reference to the accompanying drawings, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. In the interest of clarity and conciseness, not all features of an actual implementation are described in the specification. It will of course be appreciated that in the development of any such actual embodiment, numerous implementation-specific decisions must be made to achieve the developers' specific goals.

It should also be noted that elements and features shown in one drawing or one embodiment of the utility model may be combined with elements and features shown in one or more other drawings or embodiments, and in order to avoid obscuring the utility model with unnecessary detail, only the structure of the apparatus that is germane to the solution according to the utility model is depicted in the drawings and the description, and some structures are omitted from some drawings in order to highlight the features that represent important parts in order to more clearly show the structure of the apparatus according to the utility model. For example, the composite frame 11 is omitted in fig. 3 and 5, and the longitudinal unidirectional fabric 80 is omitted in fig. 2 to 4.

Wherein the dotted lines in fig. 3 and 5 represent indentations and the dotted lines represent splices between the strips constituting the unidirectional fabric.

Example 1

The embodiment relates to a cutting and conveying device capable of preventing one-way cloth sheets from curling, and as shown in fig. 2 to 5, the cutting and conveying device for one-way cloth comprises a rack 10, an unreeling device 20, a conveying belt 30, a cutting machine 40, a one-way cloth sheet translation device 50 and a flattening device 60. The rack 10 includes a composite rack 11, a transmission rack 12 and an unwinding rack 13, which are sequentially arranged, the three racks are functional partitions of the rack 10, the three racks may be a whole or split, and the composite rack 11, the transmission rack 12 and the unwinding rack 13 are respectively arranged in this embodiment. The unwinding device 20 is arranged on the unwinding rack 13 and used for releasing the coiled material into the transverse unidirectional fabric 70, the conveyor belt 30 is arranged on the conveying rack 12, and the transverse unidirectional fabric 70 obtained by releasing the unwinding device 20 is conveyed to the direction of the composite rack 11 through the conveyor belt 30. The cutting machine 40 and the flattening device 60 are further disposed on the conveying frame 12, the flattening device 60 can increase the flatness of the transverse unidirectional fabric 70 by adopting various flattening manners, for example, a layer of film with higher hardness is plated on the surface of the transverse unidirectional fabric 70 to make the breadth of the transverse unidirectional fabric flat, or the transverse unidirectional fabric 70 is made to be stiffer and flatter through a slit, in this embodiment, the flattening device 60 adopts an indentation manner to achieve the effect of increasing the stiffness of the transverse unidirectional fabric 70. The transverse unidirectional fabric 70 released by the unwinding device 20 passes through the flattening device 60 on the conveyor belt 30, a plurality of indentations 64 are pressed on the transverse unidirectional fabric 70 by the flattening device 60, and then the transverse unidirectional fabric on the conveyor belt 30 is cut into transverse unidirectional fabric sheets 71 with specified sizes by the cutting machine 40. The rack 10 is further provided with a slide rail 14, the slide rail 14 is arranged on the composite rack 11 and the conveying rack 12, the cutting machine 40 and the one-way cloth sheet translation device 50 are both arranged on the slide rail 14, wherein the one-way cloth sheet translation device 50 can reciprocate between the composite rack 11 and the conveying rack 12 along the slide rail 14, and the cutting machine 40 can reciprocate on the conveying rack 12 along the slide rail 14. In this embodiment, the cutting machine 40 and the translation device 50 share the same slide rail 14, so that the space occupied by the equipment can be saved, and a person skilled in the art can also set the cutting machine 40 and the translation device 50 on separate slide rails respectively according to actual needs, thereby facilitating the disassembly, assembly, maintenance and control of the equipment.

More specifically, as shown in fig. 6, the flattening device 60 includes a nip roll 61, an indentation shaft 62 is disposed on a roll surface of the nip roll 61, and both ends of the nip roll 61 are respectively connected to air cylinders 63. The nip roll 61 may be a driving roll or a driven roll, when the nip roll 61 is a driving roll, the nip roll needs to be connected to a brake, the brake is connected to the cutting machine 40, and when the cutting machine 40 finishes feeding, a signal is sent to brake the nip roll 61.

The linear velocity of the roll surface of the nip roll 61 is the same as that of the conveyor belt 30, and the transverse unidirectional fabric 70 moves from the gap between the nip roll 61 and the conveyor belt 30 to the direction of the composite support 11 under the combined action of the nip roll 61 and the conveyor belt 30. In the rotating process of the nip roller 61, when the indentation shaft 62 on the roller surface of the nip roller is in contact with the transverse unidirectional cloth 70, one indentation 64 is left on the transverse unidirectional cloth 70, the transverse unidirectional cloth 70 can be stiffer in the width direction due to the existence of the indentation 64, the unidirectional cloth sheet 71 is prevented from being curled in the width direction in the moving process, and the shape, the number and the layout of the indentation shaft 62 can be adjusted according to requirements. The air cylinder 63 is used for controlling the rising and falling of the material pressing roller, so that the materials can be conveniently arranged in a penetrating mode during preparation, and the air cylinder 63 is further provided with an air pressure adjusting valve which can control the pressure of the indentation shaft. In this embodiment, the cross-section of the indentation axis 62 is

If the indentation shaft 62 is too small, the indentation 64 is too shallow, and the stiffness of the sheet cannot be increased, and if the indentation shaft 62 is too large, the indentation 64 is too deep or too wide, which affects the quality of the composite fabric. In addition to the above structure, an up-down lift type indenter may be used, and the device such as a cylinder or a reciprocating motor is used to drive the pressing rod to leave an indentation on the transverse unidirectional fabric 70, as long as the indentation can be left on the sheet, which is not limited in the present invention. The flattening device adopting the indentation mode provided by the embodiment has the advantages of simple structure, convenience in installation and capability of effectively avoiding the unidirectional cloth sheet from being curled and deformed in production practice.

As shown in fig. 6, the cutting machine 40 is disposed on the slide rail 14 and includes a saw blade 41 and a pressing mechanism 42, wherein the saw blade 41 can move along a cross beam of the cutting machine 40 in a width direction of the transverse unidirectional fabric 70, and a unidirectional fabric sheet 71 is cut from the transverse unidirectional fabric 70. The pressing mechanism 42 can press the transverse unidirectional fabric 70 on the conveyor belt 30 during the movement of the transverse unidirectional fabric 70, so as to ensure the stability of the transverse unidirectional fabric 70 during the transmission and cutting processes.

As shown in fig. 2-5, the unidirectional fabric translation device 50 is disposed on the slide rail 14, the translation device 50 includes a plurality of gantries 51, and each of the gantries 51 is provided with a plurality of vacuum suction cups 52 for sucking the transverse unidirectional fabric sheets 71. In this embodiment, the distance between the gantries 51 is adjustable, and the positions of the vacuum suction cups 52 at both ends of each gantry 51 are also adjustable, so as to be adapted to the gripping and moving of unidirectional fabric sheets 71 with different sizes. Specifically, the schematic structural diagrams of the two ends of the gantry 51 are shown in fig. 7, the vacuum chuck fixing holes 53 at the edge of the gantry 51 are elongated, and the positions of the corresponding vacuum chucks 52 can be adjusted in the elongated vacuum chuck fixing holes 53, so that the grabbing width adjusting function of the translation device 50 is realized.

The unidirectional fabric cutting and conveying equipment described in this embodiment is connected with a hot-pressing compounding device, a cooling roller and a longitudinal winding device, which are not shown in the figure, at the compounding frame 11 along the moving direction of the longitudinal unidirectional fabric 80, and is used for hot-pressing compounding the longitudinal unidirectional fabric 80 and the unidirectional fabric sheets 71 stacked together on the compounding frame 11 into the weftless fabric 100, and cooling and winding the weftless fabric 100.

The working process of the unidirectional cloth cutting and conveying equipment in the embodiment is as follows:

the web of unidirectional fabric is released from the unwinding device 20 to obtain a transverse unidirectional fabric 70, and the transverse unidirectional fabric 70 passes through the gap between the flattening device 60 and the conveyor belt 30 and projects in the direction of the composite support 11 along the conveyor belt 30 by a distance, which is generally the length of the sheet 71. Then the transverse unidirectional cloth 70 is clamped by the pressing mechanism 42 and the conveyor belt 30, and after clamping, the cutting machine 40 moves along the slide rail 14 towards the composite support 11 at the same speed as the conveyor belt 30, so as to drive the unidirectional cloth 70 to move towards the composite support 11. During the forward movement of the cross direction unidirectional fabric 70, the nip roll 61 rotates along with the cross direction unidirectional fabric 70, and during the rotation of the nip roll 61, the cross direction unidirectional fabric 70 is pressed by the indentation shaft 62, so that a plurality of indentations 64 are left on the cross direction unidirectional fabric 70, and the indentations 64 are shown in a dotted line form in fig. 2-5. The transverse unidirectional cloth 70 with the indentation moves towards the direction of the composite support 11, and simultaneously, the saw blade 41 moves along the cross beam of the cutting machine 40 to cut the unidirectional cloth 70 to obtain a sheet 71; or when the unidirectional cloth 70 moves to a set distance, the saw blade 41 moves along the cross beam to cut the unidirectional cloth 70, and a sheet 71 is obtained. After the cutting is completed, the translation device 50 moves in the direction of the sheet 71, and at the same time, the cutting machine 40 moves in the direction of the flattening device 60, and the next sheet is ready to be cut. The simultaneous movement of the translation device 50 and the guillotine 40 in the same direction avoids damage to the apparatus caused by the impact of the two. After the translation device 50 moves above the sheet 71, the vacuum suction cup 52 extends downward to suck the sheet 71 and then lifts upward, and then the translation device 50 drives the sheet 71 to move towards the compound rack 11 for the next compound hot-pressing process. The multiple rows of vacuum suction cups arranged on the translation device 50 enable each point of the sheet 71 to be stressed uniformly in the translation process, and can avoid the curling deformation caused by the fact that the sheet 71 is not stressed.

In this embodiment, the distance between two adjacent indentations 64 is 10-40cm, and when the distance between two adjacent indentations is too small, the flatness of the sheet 71 is affected, and when the distance is too large, the stiffness of the sheet 71 is not increased.

The cross section of the non-woven fabric 100 produced by the unidirectional fabric cutting and conveying device of the embodiment is shown in fig. 8, the non-woven fabric 100 comprises a longitudinal layer and a transverse layer, the stretching direction of the polymer strips in the longitudinal layer is the same as the length direction of the wound non-woven fabric, and the longitudinal layer is the longitudinal unidirectional fabric 80 described above; the stretching direction of the polymer tapes in the transverse layer is the same as the width direction of the winding of the non-woven fabric, the transverse layer, namely the unidirectional fabric sheet 71, and the longitudinal layer and the transverse layer are compounded together after being heated and pressurized to form the non-woven fabric 100. Wherein the sheet 71 of the transverse layer is provided with a plurality of indentations 64, the indentations 64 being at an angle to the direction of stretching of the polymer tapes in the transverse layer, in this embodiment the indentations 64 being perpendicular to the direction of stretching of the polymer tapes in the transverse layer.

The presence of the indentations 64 prevents curling of a side of the sheet 71 during the production of the laid fabric 100, thereby preventing unstable creasing of the laid fabric 100 during hot pressing. In the embodiment, the existence of the indentation 64 enables the whole breadth quality of the non-woven cloth 100 to be more stable and uniform, the influence of the indentation 64 on the whole performance of the non-woven cloth 100 is smaller, the influence of irregular folds on the bulletproof performance of the non-woven cloth 100 is avoided, and the bulletproof performance of the non-woven cloth 100 is improved.

And the non-woven fabric after being compounded is subjected to hot-pressing compounding, and the fabric surface is flattened again, so that the indentation is not limited to macroscopic marks. The unidirectional sheets in the transverse layers are subjected to pressure by means of an indentation shaft, whereby regularly linearly existing fiber breakpoints in the transverse layers are also to be understood as indentations according to the utility model.

Claims (6)

1. The utility model provides a can prevent that one-way cloth sheet is curled cuts conveying equipment, includes the frame, unwinding device, the conveyer belt, guillootine, its characterized in that, be provided with one-way cloth sheet translation device in the frame, one-way cloth sheet translation device includes a plurality of longmen, every be provided with a plurality of one-way cloth on the longmen and pick up the mechanism.

2. A cutting and conveying apparatus capable of preventing a one-way cloth sheet from being curled according to claim 1, wherein the one-way cloth pickup mechanism is a vacuum chuck.

3. The cutting and conveying equipment capable of preventing the unidirectional cloth sheet from curling as claimed in claim 1, wherein a slide rail is arranged on the frame, and the unidirectional cloth sheet translation device and the cutting machine are arranged on the slide rail.

4. A cutting and conveying apparatus capable of preventing a unidirectional fabric sheet from curling according to claim 1, wherein the distance between the gantries is adjustable.

5. The cutting and conveying device capable of preventing the one-way cloth sheet from being curled according to claim 1, wherein the frame comprises a composite frame, a conveying frame and an unreeling frame which are arranged in sequence.

6. The cutting and conveying device capable of preventing the unidirectional cloth sheet from being curled according to claim 1, wherein the cutting and conveying device further comprises a hot-pressing compounding device, a cooling roller and a longitudinal winding device.

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