JP3145312U - Paper box folding device and structure of paper box formed thereby - Google Patents

Abstract

Kind Code: A1 A paper box folding apparatus is proposed which destroys a kind of paper board structure on both sides of a folding line and its strength and affects the finished product size and appearance of the paper box without shifting the folding line. .
A paper box folding device includes a paper board feeding device, a folding device, and a crease forming device installed in the folding device. The paper board is transmitted to the folding device using the paper board feeding device, and the paper board is fixed. Bending at an angle to form one fold line, and the crease forming device forms creases on both sides of the fold line to destroy the structure and strength of the paper board, so that the fold line is in a predetermined position in the paper board folding process. Can be maintained and does not cause a shift or influence on the size and appearance of the finished paper box after molding.
[Selection] Figure 3

Description

In particular, the present invention provides a paper box folding apparatus that destroys a kind of paper board structure on both sides of the folding line and its strength, and does not shift the folding line and affects the finished product size and appearance of the paper box.

In general paper boxes, a paper board is cut and formed in advance, and then a folding portion is formed by a paper box folding machine, and the paper board is bent into a flat shape to form a single flat paper box. Thus, one complete paper box is created by forming the four corners of the paper box at the folding point.

As shown in FIG. 1, the paper box folding machine 8 performs stable paper board 9 feeding by the upper paper folding unit 81 and the lower paper folding unit 82, and the upper and lower paper folding units 81, 82 are placed outside. When the guide bar 83 is provided and the paper board 9 comes into contact with the guide bar 83, the paper board 9 is bent at a constant angle by the guide bar 83, and the guide bar 83 becomes irregularly curved. The paper board 9 is gradually folded and folded to form a flat paper box.

However, as shown in FIG. 2, when the paper bar 9 is folded, the guide bar 83 forms a depositing fold line 91, but since the paper board 9 itself has a certain thickness, the guide bar 83 turns the paper board 9 into the fold line 91. When folded along, the thickness of the paper plate will affect the accuracy of the folding, so that the predetermined position cannot be maintained in the folding process of the paper sheet depositing fold line 91, and it is easy to shift. Problems remain that affect the appearance.

In order to more clearly show the features and superior technology of the present invention, a paper box folding device equipped with a crease forming device will be taken as a preferred embodiment and will be described in detail.

The present invention provides a kind of paper box folding device, and the known folding line of the paper board cannot maintain its predetermined position in the folding process, and is easily shifted, and affects the finished product size and appearance of the entire paper box. Resolve.

Therefore, the paper box folding device of the present invention folds a paper board into a single paper box and includes one paper board feeding device, one folding device, and a fold forming device installed in one folding device, Mainly, the paper board feeding device is used to process a stable paper board feed to the folding device, and when the paper board contacts the folding device, the paper board is bent at a certain angle to form a single fold line, and The crease forming device forms one crease on both sides of the paper board fold line, and destroys the paper board structure on both sides of the fold line and its strength. As a result, the paper box structure formed using the paper box folding device keeps the folding line at a predetermined position in the process of folding the paper board, and does not cause a shift or an influence on the finished product size and appearance of the entire paper box.

The paper box folding device according to the present invention is characterized in that it destroys a kind of paper board structure on both sides of the folding line and its strength, and affects the paper box of the finished product size and appearance of the entire paper box without shifting the folding line.

  Embodiments of the present invention will be described below with reference to the drawings.

The paper box folding apparatus according to the present invention is as shown in FIGS. 3 to 5, whereby the paper board 9 is folded to form one paper box. It includes one paper board feeding device 1, one folding device 2, and a crease forming device 3 installed in one folding device 2. Mainly, the crease forming device 3 forms one crease 92 on both sides of the fold line 91 of the paper board 9 to destroy the paper board structure on both sides of the fold line 91 and its strength. The paper box structure formed by using the paper box folding device maintains the predetermined position at the folding line 91 in the folding process of the paper board 9, and does not cause the shift and the influence on the finished product size and appearance of the whole paper box. .

The paper board feeding device 1 therein includes one upper paper folding part 11 and one lower paper folding part 12, sandwiches the paper board using the upper paper folding part 11 and the lower paper folding part 12, and bends the paper board. Stable paper board feed is performed in the device 2 direction.

The folding device 2 is installed on one side of the upper and lower paper folding portions 11 and 12 and includes a single guiding rod 21. When the paper plate 9 and the guiding rod 21 are in contact with each other, the guiding rod 21 is at a certain angle to the paper plate 9. As well as forming one fold line 91, the guide rod 21 is irregularly bent, and the paper board 9 is gradually folded to form a flat surface.

The crease forming device 3 is installed in the bending device 2 and is located at a position where the guide bar 21 bends the paper plate 9 to an angle smaller than 90 degrees, which is one inner press wheel 31 and one outer press. The vehicle 32 is included, and fixed on the connecting plate 111 and the connecting rod 121 provided on the upper and lower paper folding sections 11 and 12 respectively. Further, the outer press wheel 32 is further moved by one drive device 33 and one belt portion 34, and the transverse plane of the outer surface of the inner press wheel 31 has two right angles. A concave groove 321 having one two inclined sides is installed on the vehicle surface. Between the outer press wheel 32 and the inner press wheel 31, there is a gap through which one paper board 9 is passed. In the present embodiment, the crease forming device is moved by the drive device, but naturally the drive device may be unnecessary and the same object as that interlocked with the drive device can be achieved.

In actual implementation, mainly when the paper board 9 and the guide bar 21 come into contact with each other, the paper board 9 and the guide bar 21 are brought into contact with the paper board 9 by processing the stable paper board 9 feed to two folding devices using the upper paper folding section 11 and the lower paper folding section 12. Is bent at a certain angle to form one fold line 91, and then the paper board 9 is continuously fed in the direction of the crease forming device 3, and when the outer press wheel 32 interlocked with the drive device 33 rotates, The paper board 9 is continuously transmitted, and when the right angle of the vehicle surface of the inner press wheel 31 presses both sides of the folding line 91 of the paper board 9 after passing between the outer press wheel 32 and the inner press wheel 31, the folding line 91 of the paper plate 9 Both sides of the sheet are roll-pressed to form one crease 92 (see FIG. 5), destroying the paper board structure on both sides of the fold line 91 and its strength. Further, the paper board 9 continues through the transmission guide rod 21, and the paper board 9 is gradually folded to form a flat paper box (see FIG. 6). The paper box structure formed using the paper box folding device maintains the predetermined position of the folding line 91 in the process of folding the paper board 9, and does not affect the finished product size and appearance of the entire shifted paper box (FIG. 7).

Further, as shown in FIG. 8, one further forming pulley device 4 can be provided in the bending device 2. The forming pulley device 4 is installed on the same side of the crease forming device 3 (the crease forming device 3 and the forming pulley device 4 are arranged in parallel), and the guiding rod 21 is located at a position where the paper plate 9 is bent to an angle smaller than 90 degrees. It is composed of an inner pulley portion 41 and an outer pulley portion 42 that are parallel to each other in the axial direction, and is fixed on a connecting plate 111 and a connecting rod 121 provided on the upper and lower paper folding portions 11 and 12, respectively. The inner and outer pulley portions 41 and 42 are each composed of one or more inner pulleys 411 and 421, and the outer pulley 421 and the outer press pulley 32 of the outer pulley portion 42 are driven by the same drive. A device 33 (which may be a motor), a belt portion 34, and an inter-wheel portion 35 are interlocked with each other as shown in FIG.

As shown in FIG. 10, the cross-sectional surface of the outer surface of each inner pulley 411 in the inner side slightly forms a rhombus, and the short axis portion of the rhombus is the axis 412 of the inner pulley, and the major axis of the rhombus The location is a convex pulley surface 413, and the outer pulley 421 of the outer pulley portion 42 has an outer shape matching the outer shape of the inner pulley 411. The outer pulley 421 has a concave groove 422 having two inclined sides 423 on the vehicle surface. A concave gap B is formed between the convex wheel surface 413 and the concave groove 422 so that one paper board 9 is passed through. The convex wheel surface 413 and the concave groove 422 press the inner side and the outer side of the paper board 9, respectively. The paper board 9 is bent to determine the shape according to the angle formed by.

Further, the short axis portion of the inner pulley 411 is gradually reduced in order, and the inner pulley 411 is gradually flattened, as shown in FIGS. 10 to 12. The outer pulley 421 also changes according to the vehicle surface of the inner pulley 411, so that the angle between the two inclined sides 423 of the concave groove 422 is gradually reduced, and the folding angle of the folding gap B is gradually reduced. The paper plate 9 is gradually bent into a flat shape, and finally the paper plate 9 is folded into a flat shape by using the guide rod 21, as shown in FIG. Therefore, the forming pulley device 40 has a function of adjusting and determining the shape in the process of folding the paper board 9, and the bent portion of the paper board 9 is not bent and inclined.

The above-described present invention provides a paper box folding device and a paper box structure formed thereby, which can be satisfactorily implemented, and a utility model is filed here based on the law. However, what is shown in the above description and drawings is only one of the preferred embodiments of the present invention, and does not limit the present invention. Therefore, the structure, apparatus, features, etc. of the present invention are not limited. Anything that approximates or is equivalent to is intended to be included within the scope of the invention and the claims for utility model registration.

Three-dimensional view of a known paper box folding machine Known paperboard folding diagram Three-dimensional view of Embodiment 1 relating to the paper box folding device of the present invention Sectional drawing of Example 1 regarding the paper box folding apparatus of this invention Paper board folding diagram of the present invention Structure of the guide rod of the present invention folding paper board Folded drawing of another paper board of the present invention Three-dimensional view of embodiment 2 relating to the paper box folding device of the present invention The local exploded view of Example 2 regarding the paper box folding apparatus of this invention FIG. 2 is a structural diagram of a forming pulley device according to a second embodiment of the paper box folding device of the present invention. FIG. 2 is a structural diagram of a forming pulley device according to a second embodiment of the paper box folding device of the present invention. FIG. 2 is a structural diagram of a forming pulley device according to a second embodiment of the paper box folding device of the present invention.

Explanation of symbols

B Bending gap 1 Paper board feeding device 11 Upper paper folding portion 111 Connecting plate 12 Lower paper folding portion 121 Connecting rod 2 Bending device 21 Leading rod 3 Folding forming device 31 Inner press wheel 32 Outer press wheel 321 Concave groove 33 Drive device 34 Belt portion 35 Inter pulley section 4 Molded pulley apparatus 41 Inner pulley section 411 Inner pulley 412 Axis center 413 Convex wheel surface 42 Outer pulley section 421 Outer pulley 422 Concave groove 423 Inclined side 8 Paper box folding machine 81 Upper paper folding section 82 Lower paper folding section 83 Lead rod 9 Paper board 91 Fold line 92 Fold line

Claims (3)

The paper box folding device is a device that folds a paper board to form a single paper box, and is included in it.
One paper board feeder performs stable paper board feeding,
One folding device is installed on one side of the paper board feeding device, and when the paper board and the folding device come into contact, the paper board is immediately bent at a certain angle, and one fold line is formed,
One fold forming device is installed in the folding device, and forms one fold on each side of the folding line of the paper board. The folding device includes a single guiding rod, and when the paper plate and the guiding rod are in contact, the guiding rod bends the paper plate at a certain angle, and the guiding rod forms an irregular folding shape. The folding device further includes one molded pulley device, which is installed at the upper end of the guide rod and includes an inner pulley portion and an outer pulley portion that are parallel to each other from the axial direction. Each of the inner and outer pulleys is formed with a folding gap through which one paper board is passed, and the inner and outer pulleys press the inner and outer sides of the paper board, respectively, and the inner and outer pulley car surfaces By changing the angle, the folding angle of the folding gap is gradually reduced, and the folding of the paper board is gradually flattened to achieve the action of adjusting the shape of the paper board. Finally, the paper board is folded using a guide bar. It is characterized by being flat. Paper box folding apparatus of claim 1, wherein. The crease forming apparatus includes one inner press wheel and one outer press wheel, of which the outer press wheels are respectively fixed on a connecting rod and a connecting plate provided at the lower and upper paper folding portions. The outer side of the inner press wheel is provided with two right angles on the outer cross-sectional surface of the inner press wheel, and the outer press wheel is provided with a concave groove having two inclined sides. 2. The paper box folding apparatus according to claim 1, wherein a gap for passing one paper board is provided between the press wheels.