KR100621011B1 - A rotary type apparatus for folding both sides of vinyl sheet - Google Patents

Abstract

Disclosed is a rotatable type in which a guide wheel is disposed on both sides of an envelope-type vinyl sheet so that the vinyl sheet can be folded in a folding process without causing stress to the vinyl sheet by folding the vinyl sheet while rotating according to the moving speed of the vinyl sheet. A vinyl sheet folding apparatus. The rotary vinyl sheet folding apparatus according to the present invention can prevent the vinyl sheet from being stretched or torn because the guiding wheel is rotated according to the moving speed of the vinyl sheet and the vinyl sheet is folded and friction and stress are not generated. have. In addition, by using the left and right transfer handles and the front and rear transfer handles to be folded in contact with the vinyl sheet, it is easy to transfer not only in the left and right directions, but also in the front and rear directions to precisely adjust the entry width.

Vinyl sheet, vinyl cover, vinyl sheet folding, vinyl sheet side folding

Description

ROTARY TYPE APPARATUS FOR FOLDING BOTH SIDES OF VINYL SHEET}

Detailed description of the embodiments of the present invention will be made with reference to the accompanying drawings, in which numerals designate corresponding parts in the drawings.

1 is a manufacturing process chart of a general vinyl sheet,

2 is a perspective view showing a conventional folding device,

3 is a perspective view showing a state of folding a vinyl sheet in a conventional folding apparatus,

Figure 4 is an assembled perspective view of the rotary vinyl sheet folding apparatus according to the present invention,

5 is an exploded perspective view of FIG. 4,

Figure 6 is a state diagram showing the left and right (width) direction adjustment method of the rotary vinyl sheet folding apparatus according to the present invention,

7 is a state diagram showing a method of adjusting the front and rear (entry) direction of the rotary vinyl sheet folding apparatus according to the present invention,

8 is a perspective view showing another embodiment of the present invention equipped with an auxiliary wheel,

9 is a schematic view showing a state where the apparatus is applied to a vinyl sheet manufacturing system,

10A and 10B are sectional views seen in the A-A direction and the B-B direction in the system shown in FIG. 9.

** Explanation of symbols for main parts of drawings **

110: support 112a, 112b: side plate

114a, 114b: horizontal bar 120: left and right transfer plate

122: upper coupling protrusion 122a: through hole

124: lower coupling protrusion 124a: through hole

126: fixed protrusion 126a: female spiral ball

128: moving back and forth support 128a: movement guide

129: front and rear movable projections 129a: female spiral

130: left and right feed handle 132: left and right feed screw

140: guide wheel 142: guide wheel

150: wheel support 152: bolt hole

154: support hole 160: front and rear transfer handle

162: front and rear transfer screw 170: auxiliary wheel

172: auxiliary support

The present invention relates to a device for folding both sides of the vinyl sheet to the inside, and more specifically, by placing a pair of left and right wheel guide wheels on both sides of the envelope-type vinyl sheet to fold the vinyl sheet while rotating in accordance with the moving speed of the vinyl sheet The present invention relates to a rotary vinyl sheet folding apparatus that can be folded inward without causing stress to the vinyl sheet during folding.

In general, the garment storage vinyl cover is made by cutting a cylindrical vinyl sheet to a certain length and joining one end of the open both ends, so the width of the storage area for storing clothes is narrow. It is limited, and when storing suits such as suits, the shoulders with the thickness are pressed down so that they cannot maintain their original shape when stored.

In order to solve this problem, when both sides of the vinyl sheet are folded and bonded to the garment, the folded sides are stretched to create a vinyl cover to have a certain thickness, so that the clothes can be stored conveniently and thickly. .

The folded structure of both sides is also applied to a plastic bag for storing books or other objects, and by folding and bonding the two sides to produce a bag, it is possible to store a larger and more contents.

In the past, the production of the plastic sheet is folded by hand by folding the two sides as described above by one hand, the productivity is lowered, labor costs were not economically increased. Accordingly, the applicant has filed an application to automatically develop a device for folding a vinyl sheet. This apparatus is disclosed in Utility Model Registration No. 333082, which is briefly described with reference to FIGS. 1 to 3 as follows.

1 is a manufacturing process diagram of a general vinyl sheet, Figure 2 is a perspective view showing a conventional folding device, Figure 3 is a perspective view showing a state of folding the vinyl sheet in a conventional folding device.

As shown in FIG. 1, when the vinyl raw material M is supplied to the raw material input part 1, it is cured in a cylindrical shape through the hardening part 3 and is conveyed by the conveying rollers as the vinyl sheet V. The vinyl sheet (V) conveyed in this way is folded on both sides of the folded portion (5), and then printed on the surface of the particulars, for example, the product name, the manufacturer, etc., the take-up roll (9) Will be wound up.

In this vinyl sheet manufacturing system, the folding part 5 is equipped with the folding apparatus 10 for folding both sides of the vinyl sheet V. As shown in FIG. As shown in FIG. 2, the folding device 10 is provided with an opening member 30 on the pair of lower rollers 20. The opening member 30 has a pair of left and right vertical plates 32a to 32d connected to the horizontal bar 34 to be spaced apart from each other, and in particular, the left and right paired vertical plates 32a to 32d are spaced apart from each other. As they are spaced apart, the gap narrows from the bottom to the top. In addition, since the friction occurs while the vinyl sheet V is unfolded at the lower end of the opening member 30, the shock absorbing member 36 is provided. The spacing between the left and right vertical plates 32a to 32d is slightly smaller than the width of the vinyl sheet V. Specifically, the distance between the left and right vertical plates 32a to 32d is determined in consideration of the length of the left and right folding sides. do. Opening member 30 is in a state of floating in the air when the vinyl sheet (V) passes while wrapping the outer surface, before the operation (before the passage of the vinyl sheet) to the support frame 40 by the holder 38 It is fixed. In operation, the holder 38 is pivoted away from the support frame 40 to be removed from the opening member 30.

The vinyl sheet (V) is moved by the lower rollers 20 and the upper rollers (not shown) from the lower side to the outer side of the opening member 30 to be opened so that a space is formed therein, and then is supported. The folding members 50 and 50a fixed to both sides of the frame 40 are positioned between the vertical plates 32a to 32d to fold the side surfaces of the vinyl sheets to be transferred upward. The folding depth of the vinyl sheet V is determined by the depth at which the folding members 50 and 50a enter between the vertical plates 32a to 32d. The folding members 50 and 50a are located at portions corresponding to both sides of the vinyl sheet V. For this purpose, the support frame 40 is provided with a pair of left and right pillars 42a to 42d and a horizontal support at an appropriate height. (44a, 44b, 46a, 46b) to fix the fixing rods (52a, 52b, 54a, 54b) of the folding members (50, 50a) through the middle of the horizontal support (44a, 44b, 46a, 46b) bolts It is fixed as (56a, 56b, 58a, 58b). In particular, the fixing rods 52a, 52b, 54a, 54b and horizontal supports 44a, 44b, respectively, above and below the folding members 50, 50a so that the guide blades of the folding members 50, 50a can be stably supported in the vertical direction. 46a and 46b are fixed to the support frame pillars 42a to 42d.

As described above, the existing folding device is not only complicated, but also requires a lot of manufacturing costs, and ultimately, a folding member, which is a guide member for folding the conveyed vinyl sheet on both sides, is in the form of a vertical bar. There was a problem that the friction and stress of the vinyl sheet is stretched or deformed. In addition, in order to adjust the degree of entry by moving the fixing rods of the left and right folding members back and forth from the vertical support to adjust the entry degree, because the one folding member is supported by a pair of upper and lower fixing rods, the upper and lower fixing rods must be moved the same. It is difficult to precisely adjust, and thus the folding device is only possible to adjust the movement in the front and rear direction, there was also a disadvantage that can not be adjusted in the left and right directions. Furthermore, in order to prevent sagging or deformation due to friction between the folding member and the vinyl sheet, the upper roller may be driven to provide a tensile force, thereby complicating the driving device.

Accordingly, an object of the present invention is to devise to solve the above-described drawbacks, by guiding the wheels on both sides of the envelope-type vinyl sheet and folding the vinyl sheet while rotating according to the moving speed of the vinyl sheet, The present invention provides a rotary vinyl sheet folding apparatus that enables to proceed smoothly and minimizes friction during folding contact to produce a higher quality product.

In the rotary vinyl sheet folding apparatus according to the present invention for achieving the above object is a device for folding both sides of the vinyl sheet to be transported mounted on the folding frame support frame of the vinyl sheet manufacturing system, the left and right side plates spaced a predetermined interval, A support body having a horizontal bar connecting the left and right side plates, wherein one side plate of the left and right side plates is fixed to the support frame; A left and right transfer plate fitted to a horizontal bar of the support and movably coupled in a left and right (width) direction; A left and right conveying screw screwed to the left and right conveying plate and fixed at both ends to a left and right side plate of the support so as to rotate the left and right conveying plate in a left and right direction; Left and right transfer handles connected to the left and right transfer screws; Wheel support coupled to the left and right transport plate to be movable toward the side of the vinyl sheet; A front and rear transfer screw which is rotatably coupled to the wheel support and joined to the left and right transfer plates to transfer the wheel support in the front and rear (entry) direction from the left and right transfer plates; A front and rear transfer handle connected to the front and rear transfer screw; And a guide wheel which is connected to the wheel support and guides the side of the vinyl sheet to be folded while rotating.

Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings.

Figure 4 is an assembled perspective view of the rotary vinyl sheet folding apparatus according to the present invention, Figure 5 is an exploded perspective view of FIG.

As shown, the rotary vinyl sheet folding apparatus 100 includes a support 110 fixed to a support frame (not shown) of a vinyl sheet processing system (not shown). The support 110 is configured by connecting the left and right side plates 112a and 112b with the vertical rods 114a and 114b. The left and right transfer plates 120 are fitted to the upper and lower horizontal bars 114a and 114b of the support 110 so as to be movable from side to side. Specifically, the front coupling protrusion 122 having a through hole 122a through which the upper horizontal rod 114a penetrates at the front of the left and right transfer plate 120 is configured on the upper side in a pair of left and right, spaced apart therefrom The lower horizontal bar 114b penetrates the front lower side by forming left and right pairs of lower coupling protrusions 122 and 124 having through holes 124a formed therebetween. The fixed protrusion 126 protrudes between the coupling protrusions 124 of the upper and lower parts, and the female spiral hole 126a is formed in the fixed protrusion 126 in the horizontal direction. The female screw hole 126a is screwed with the left and right feed screw 132 connected to the left and right feed handle 130. The left and right transfer screw 132 is fixed at both ends of the left and right side plates 112a and 112b to be rotated in place, and the center thereof is screwed with the female spiral hole 126a to rotate the left and right transfer handle 130. While rotating in place at 110, the left and right transport plates 120 formed with the threaded female spiral holes 126a are moved to the left and right. As a result, this results in transferring the guide wheel 140 coupled to the left and right conveying plate 120 from side to side. A more detailed description thereof will be described later with reference to FIG. 6.

On the other hand, the fixed protrusion 126 is coupled to the front and rear moving support member 128 in the vertical direction. The front and rear movement support piece 128 is perforated with a movement guide hole 128a in the front and rear directions. The wheel support 150 is fitted into the movement guide hole 128a so as to be movable back and forth. The front end of the wheel support 150 is provided with bolt holes 152 for fixing the guide wheel stand 142 in the longitudinal direction, the coupling hole 142a of the guide wheel stand 142 at a suitable position of the bolt hole 152 Butt to fasten the bolt 144 to combine the guide wheel 140. Guide wheel 140 is rotatably fixed to the front end of the guide wheel stage 142, it is preferable that the bearing (not shown) is mounted on the guide wheel 140 to reduce the friction during rotation and flexible operation. The guide wheel 140 may be made of plastic, wood, or metal. Preferably, the guide wheel 140 may be coated with a soft material as much as the outer circumference of the vinyl sheet.

Of course, it is possible to determine the depth of entry of the guide wheel 140 into the vinyl sheet by fixing the guide wheel stage 142 by selecting the position of the above-described bolt holes 152, the front and rear transfer handle 160 to be described later Rotating depth can be adjusted easily. The latter method will be universally used, and for this purpose, the outer end of the wheel support 150 is bent, and the support hole 154 into which the front and rear transfer screw 162 is fitted is perforated. The front and rear transfer screw 162 penetrating the support hole 154 is screwed into the female thread hole 129a of the front and rear movable protrusion 129 protruding to the side surface of the front and rear movement support piece 128, and the front and rear transfer screw 162. The front and rear transfer screw 162 enters or retracts the front and rear movable protrusion 129 by rotating the front and rear transfer handle 160 fixed to the wheel. This results in the wheel support fixed to rotate the front and rear transfer handle 160 in place. As the 150 is guided in the front-rear direction from the front and rear transfer plate 120, the entry depth of the guide wheel 140 is adjusted. This entry depth adjustment method will be described in more detail later with reference to FIG. 7.

Figure 6 is a state diagram showing the left and right (width) direction control method of the rotary vinyl sheet folding apparatus according to the present invention.

As shown, when the left and right transfer handle 130 is rotated, the left and right transfer screw 132 coupled with the left and right transfer handle 130 in the left and right side plates 112a and 112b of the support 110 rotates in place. As a result, the fixed protrusion 126 on which the female threaded hole 126a is formed to be screwed with the left and right transfer screw 132 is moved in the left and right direction, which is the left and right direction of the left and right transfer plate 120 to which the fixed protrusion 126 is fixed. Will be moved to. Therefore, the guide wheel 140 coupled to the left and right transport plate 120 also moves in the left and right direction together with the left and right transport plate 120. In this way, the user can easily move the guide wheel 140 in the left and right directions by turning only the left and right transfer handle 130. At this time, the guide wheel 140 is moved to the left or right direction by the clockwise or counterclockwise rotation direction of the left and right transport handle 130, the left and right feed width can be easily adjusted by the amount of rotating the handle. have.

Figure 7 is a state diagram showing a method of adjusting the front and rear (entry) direction of the rotary vinyl sheet folding apparatus according to the present invention.

In order to fold both sides of the vinyl sheet more deeply, the user needs to turn the front and rear transfer handles 160. Turning the front and rear transfer handle 160, the front and rear transfer screw 162 connected to the front and rear transfer handle 160 is rotated in place on the wheel support 150, and as a result, the front and rear transfer screw 162 is fixed to the left and right transfer plate 120. The front and rear movable projections 129 are pushed in the front and rear directions. However, since the left and right transfer plate 120 integrated with the front and rear movable protrusion 129 is allowed to move only in the left and right direction to the support 110 and fixed in the front and rear direction, the front and rear transfer screw 162 is the front and rear movable protrusion ( In response to pushing 129, the wheel support 150 fixed to the front and rear transfer screw 162 to rotate in place is moved forward or backward from the left and right transfer plate 120. Therefore, the guide wheel 140 connected to the wheel support 150 is moved back and forth to determine the depth of entry into the vinyl sheet. Of course, the forward or backward of the guide wheel 140 is determined by the rotational direction of the forward and backward transport handle 160 in the clockwise or counterclockwise direction, the movement distance is determined according to the amount of rotation of the forward and backward transport handle 160. .

8 is a perspective view showing a structure in which the efficiency of the guidance is doubled by adding an auxiliary wheel to the apparatus applied to FIGS. 4 to 7 as another embodiment of the present invention.

The device is attached to the auxiliary wheel 170 to the lower side of the guide wheel 140, while transporting the plastic sheet to be folded gradually without folding to a set depth at a time to fold while making the smooth and natural folding operation. This makes it possible to more effectively prevent the thin vinyl material from stretching or deforming. The auxiliary wheel 170 is positioned in the lower side as shown in the system in which the vinyl sheet is transported from the lower side, and is disposed on the upper side when supplied from the upper side. It is preferable that the auxiliary wheel 170 is made of a wheel smaller than the guide wheel 140, and as shown, the auxiliary wheel 170 is rotatable by fixing the auxiliary support 172 to the guide wheel 142. Let's do it. Of course, the auxiliary support 172 may be configured to be fixed directly to the wheel support 150, not the guide wheel 142. Furthermore, the auxiliary support 172 may be adjusted to some extent to adjust the front and rear wheels of the auxiliary wheel 170 by adjusting the coupling angle at the fixed portion. Of course, it is effective to reduce the rotational friction by inserting a bearing or the like to the auxiliary wheel (170).

9 is a schematic view showing a state where the apparatus is applied to a vinyl sheet manufacturing system. 10A and 10B are schematic views seen in the A-A direction and the B-B direction in the system shown in FIG. 9. In particular, the apparatus is suitable for the production of recently popularized plastic bags, for example, vinyl sheets made of PP (polypropylene), PE (polyethylene), HP (high density polyethylene), preferably excellent performance in PP manufacturing systems. Exert.

This apparatus is installed in the folding portion of the vinyl sheet manufacturing system, specifically, as shown in Figure 9 abut one side plate (112b) to the support frame 40 'located in the folding portion fixed bolts 180, screws, etc. Fasten to the member. In this way, the device is installed only if one side plate 112b is firmly fixed to the support frame 40 'with the bolt 180, and the other side plate 112a may not be fixed. Therefore, it is not necessary to install a separate support stand on the support frame 40 ', and mounting of the device is easy and simple. The device thus installed rotates the left and right transport handles 130 to move the guide wheel 140 to the position corresponding to the space between the vertical plates 32a to 32d of the opening member 30 ', and moves the front and rear transport handles. By rotating the 160, the guide wheel 140 enters a predetermined depth inwardly between the vertical plates 32a to 32d to fold both sides of the vinyl sheet Vs. In operation of the system, the vinyl sheet (Vs) passing through the opening member 30 'and the guide wheels 140 of the apparatus is folded as shown in FIG. 10A and then passed through a pair of upper rollers as shown in FIG. 10A. The folded parts are angled.

In this manner, the device is free to move left and right and back and forth, so that precise adjustment is possible and the folding width of the vinyl sheet can be easily adjusted.

The embodiments disclosed herein are only presented by selecting the most preferred examples to help those skilled in the art from the various possible examples, the technical spirit of the present invention is not necessarily limited or limited only by this embodiment, the present invention Various changes and modifications are possible within the scope without departing from the spirit of the invention, as well as other equivalent embodiments.

As described above, the rotary vinyl sheet folding apparatus according to the present invention arranges a pair of left and right wheel guide wheels on both sides of an envelope-type vinyl sheet and rotates the vinyl sheet while rotating the vinyl sheet while rotating according to the moving speed of the vinyl sheet. The friction and stress does not occur in the plastic sheet can prevent the plastic sheet from stretching or tearing. In addition, by using the left and right transfer handles and the front and rear transfer handles to be folded in contact with the vinyl sheet, there is an effect that can be easily adjusted in the forward and backward directions as well as the precise entry width.

In addition, the device is easy to be mounted on the vinyl sheet manufacturing system, and it is possible to reduce the driving force of the sheet transfer by folding both sides while rotating in accordance with the conveying speed of the vinyl sheet, thereby reducing the size of the driving device to design This allows for miniaturization and simplification of the system.

Claims (7)

In the device for folding both sides of the vinyl sheet to be transported mounted on the fold support frame of the vinyl sheet manufacturing system, A support having a left and right side plate spaced apart from each other by a predetermined interval, and a horizontal bar connecting the left and right side plates, wherein one side plate of the left and right side plates is fixed to the support frame; A left and right transfer plate fitted to a horizontal bar of the support and movably coupled in a left and right (width) direction; A left and right conveying screw screwed to the left and right conveying plate and fixed at both ends to a left and right side plate of the support so as to rotate the left and right conveying plate in a left and right direction; Left and right transfer handles connected to the left and right transfer screws; Wheel support coupled to the left and right transport plate to be movable toward the side of the vinyl sheet; A front and rear transfer screw which is rotatably coupled to the wheel support and joined to the left and right transfer plates to transfer the wheel support in the front and rear (entry) direction from the left and right transfer plates; A front and rear transfer handle connected to the front and rear transfer screw; And And a guide wheel connected to the wheel support and guiding the side of the vinyl sheet to be folded while rotating. According to claim 1, wherein the horizontal bar is connected to the upper and / or lower portion of the left and right plates, the left and right conveying plate is provided with a coupling protrusion formed with a through hole through which the horizontal bar and characterized in that it moves in the horizontal direction along the horizontal bar Rotatable vinyl sheet folding device. According to claim 1 or claim 2, wherein the left and right conveying plate is a front and rear movement support piece formed with a fixed protrusion formed with a female threaded hole in which the left and right conveying screw is screwed, the movement guide hole is guided through the wheel support, and the front and rear conveying Rotary vinyl sheet folding apparatus characterized in that it comprises a front and rear movable projection formed with a female threaded hole to be screwed. 2. The rotary vinyl sheet folding apparatus according to claim 1, wherein the guide wheel has a guide wheel fixed to the wheel support and a bearing for inducing flexible rotation. 5. The rotatable vinyl sheet folding device according to claim 4, wherein the guide wheel is further provided with an auxiliary wheel. The apparatus of claim 5, wherein the auxiliary wheel pivots on the guide wheel or the wheel support and has an auxiliary support capable of adjusting an angle thereof. delete

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