Double-sided embossing process for roll paper

Abstract

The invention discloses a double-sided embossing process for roll paper, which comprises the following steps of: 1, conveying the roll paper, namely conveying the dried roll paper after processing to the bottom of a humidifying mechanism through a conveying mechanism; 2, spraying treatment work of the roll paper is conducted, specifically, when the roll paper reaches the bottom of a humidifying mechanism, spraying heads arranged on the upper portion and the lower portion of the humidifying mechanism conduct spraying work continuously; step 3; and knurling work of the roll paper is conducted, and the humidified roll paper reaches the interior of the knurling device. According to the double-sided embossing process for the roll paper, when the roll paper is embossed, the extrusion mechanism can perform extrusion under the action of the sliding mechanism, so that the extrusion mechanism and the embossing mechanism are in a mutual extrusion state, and the roll paper can be embossed in an extrusion manner between the extrusion mechanism and the embossing mechanism; therefore, when the roll paper is embossed, the inner side and the outer side of the roll paper can be thoroughly extruded, and the phenomenon of incomplete extrusion is avoided.

Description

Technical Field

[0001] The invention relates to the technical field related to roll paper printing, and in particular to a double-sided embossing pattern process for roll paper. Background Art

[0002] As a very common daily necessity in the existing market, toilet paper rolls are mainly used for daily personal hygiene. Toilet paper rolls are generally wound around the outside of a roll to form a toilet paper roll tube. Due to the convenience of storage and carrying, toilet paper roll tubes are widely used in the existing market. In order to ensure that the toilet paper rolls have better water absorption and make the paper more compact, the toilet paper rolls are generally embossed, which requires an embossing process. During the embossing process on the existing market, the toilet paper rolls are only passed through the outside of the embossing roller on the embossing mechanism to achieve the embossing effect. However, during the embossing process, the embossing mechanism is not provided with a corresponding squeezing mechanism, so that the entire device often has incomplete embossing during embossing, which affects the compactness and water absorption of the toilet paper rolls. Summary of the invention

[0003] The object of the present invention is to provide a double-sided embossing pattern process for roll paper, so as to solve the problem proposed in the above-mentioned background technology that the embossing process currently on the market, when embossing, only passes the roll paper through the outside of the embossing roller on the embossing mechanism, thereby achieving the embossing effect, but when embossing, the embossing mechanism is not provided with a corresponding extrusion mechanism, so that the entire device often has incomplete embossing when embossing, thereby affecting the compactness and water absorption of the roll paper.

[0004] To achieve the above object, the present invention provides the following technical solution: a double-sided embossing process for a roll of paper, comprising step 1: conveying the roll of paper, wherein the dried roll of paper after processing is conveyed to the bottom of a humidifying mechanism through a conveying mechanism;

[0005] Step 2: Spray treatment of the paper roll. When the paper roll reaches the bottom of the humidification mechanism, the nozzles arranged above and below the humidification mechanism continuously spray to ensure that the inside and outside of the paper roll are humidified.

[0006] Step three: embossing of the roll paper. The humidified roll paper reaches the inside of the embossing device, and performs extrusion embossing work inside the embossing device to complete the extrusion printing work on the inside and outside of the roll paper.

[0007] Step 4: Drying of the paper roll. After printing, the paper roll is transported to the middle of the drying device and dried inside the drying device.

[0008] Step 5: Cutting of the paper rolls: After the paper rolls are completely dried, they are cut by a cutting device;

[0009] Step 6: The paper roll is wound up. After the slitting is completed, the paper roll machine continues to convey the paper roll and eventually winds it around the outside of the paper roll core to complete the winding work.

[0010] Step seven: Packaging of the roll paper. After the paper roll is rolled up, it is transported to the bottom of the packaging machine to complete the packaging of the roll paper.

[0011] Preferably, in step 2, the distance between the nozzle at the top of the humidifying mechanism and the roll paper is controlled to be 5-10 mm.

[0012] Preferably, the embossing device in step three comprises:

[0013] A fixed housing is arranged in a rectangular structure, and one side of the outer side thereof is an open structure;

[0014] Winding rollers are provided on both sides of the upper part of the fixed shell and are used for conveying the roll of paper;

[0015] Also includes;

[0016] The embossing body comprises an embossing mechanism and an extrusion mechanism. The outer side of the embossing mechanism is rotated by a rotating mechanism and extruded and embossed with the extrusion mechanism to achieve a complete embossing effect.

[0017] Preferably, the embossing mechanism comprises an upper embossing roller and a lower embossing roller, which are symmetrically arranged inside the fixed housing, and the top ends of the upper embossing roller and the lower embossing roller both penetrate the rotating mechanism and are connected to the rotating motor;

[0018] The rotary motor rotates inside the arc groove along with the rotation of the upper embossing roller and the lower embossing roller.

[0019] Preferably, the squeezing mechanism comprises a lower squeezing roller and an upper squeezing roller, which are symmetrically arranged inside the fixed shell, and the lower squeezing roller and the upper squeezing roller are arranged one above the other.

[0020] Preferably, the sizes of the lower extrusion roller and the upper extrusion roller are larger than those of the upper embossing roller and the lower embossing roller, and sliding mechanisms are provided on the outer sides of the lower extrusion roller and the upper extrusion roller for moving them up and down, and the sliding mechanisms are arranged in a rectangular groove of the outer wall of the fixed shell.

[0021] Preferably, the sliding mechanism comprises:

[0022] The connecting shaft is coaxially connected to the outside of the extrusion mechanism, and the top end bearing is connected to a sliding block, the sliding block slides inside the rectangular groove, and the top end of the sliding block is connected to the inner wall of the rectangular groove through an extrusion spring.

[0023] Preferably, the rotating mechanism comprises:

[0024] A rotating rod is arranged at a middle position of one side of the fixed housing, and the top ends of both sides of the rotating rod are connected to the lower squeezing roller and the upper squeezing roller through bearings respectively;

[0025] A rotating shaft is arranged in the middle of the rotating rod, and the top end of the rotating shaft penetrates the outer wall of the fixed shell and is connected with the driving motor.

[0026] Compared with the prior art, the beneficial effect of the present invention is that: when the double-sided embossing pattern process of the paper roll is carried out, a rotatable embossing mechanism is provided, and a squeezing mechanism is also provided outside the embossing mechanism, so that when the embossing mechanism is rotated, the squeezing mechanism outside it can be moved, so that the squeezing mechanism can be squeezed under the action of the sliding mechanism, thereby making the squeezing mechanism and the embossing mechanism in a state of mutual squeezing, thereby making the paper roll pass through the squeezing mechanism and the embossing mechanism for squeezing-type embossing work, thereby ensuring that when the paper roll is embossed, the inner and outer sides of the paper roll can be thoroughly squeezed, so the phenomenon of incomplete squeezing will not occur. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 It is a schematic diagram of the main structure of the present invention;

[0028] Figure 2 It is a side view structural schematic diagram of the present invention;

[0029] Figure 3 It is a schematic diagram of the main structure of the extrusion mechanism and the embossing mechanism of the present invention;

[0030] Figure 4 It is a partial enlarged structural schematic diagram of the sliding mechanism of the present invention.

[0031] In the figure: 1. fixed shell; 2. winding roller; 3. arc groove; 4. rectangular groove; 5. driving motor; 6. rotating motor; 7. embossing mechanism; 71. upper embossing roller; 72. lower embossing roller; 8. extrusion mechanism; 81. lower extrusion roller; 82. upper extrusion roller; 9. rotating mechanism; 91. rotating shaft; 92. rotating rod; 10. sliding mechanism; 101. connecting shaft; 102. sliding block; 103. extrusion spring. DETAILED DESCRIPTION

[0032] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0033] See also Figure 1-4 , the present invention provides a technical solution: a double-sided embossing pattern process for a roll of paper, comprising step 1: the paper roll is conveyed, and the dried paper roll after processing is conveyed to the bottom of a humidifying mechanism through a conveying mechanism;

[0034] Step 2: Spray treatment of the paper roll. When the paper roll reaches the bottom of the humidification mechanism, the nozzles arranged above and below the humidification mechanism continuously spray to ensure that the inside and outside of the paper roll are humidified.

[0035] Step three: embossing of the roll paper. The humidified roll paper reaches the inside of the embossing device, and performs extrusion embossing work inside the embossing device to complete the extrusion printing work on the inside and outside of the roll paper.

[0036] Step 4: Drying of the paper roll. After printing, the paper roll is transported to the middle of the drying device and dried inside the drying device.

[0037] Step 5: Cutting of the paper rolls: After the paper rolls are completely dried, they are cut by a cutting device;

[0038] Step 6: The paper roll is wound up. After the slitting is completed, the paper roll machine continues to convey the paper roll and eventually winds it around the outside of the paper roll core to complete the winding work.

[0039] Step seven: Packaging of the roll paper. After the paper roll is rolled up, it is transported to the bottom of the packaging machine to complete the packaging of the roll paper.

[0040] In step 2, the distance between the nozzle at the top of the humidification mechanism and the roll of paper is controlled at 8 mm.

[0041] The embossing device in step 3 includes:

[0042] A fixed housing 1 is arranged in a rectangular structure, and one side of the outer side thereof is an open structure;

[0043] Winding rollers 2 are provided on both sides of the upper part of the fixed housing 1 and are used for conveying the roll of paper;

[0044] Also includes;

[0045] The embossing body includes an embossing mechanism 7 and an extrusion mechanism 8. The outer side of the embossing mechanism 7 is rotated by a rotating mechanism 9 and extruded and embossed with the extrusion mechanism 8 to achieve a complete embossing effect.

[0046] The embossing mechanism 7 includes an upper embossing roller 71 and a lower embossing roller 72, and is symmetrically arranged inside the fixed housing 1, and the top ends of the upper embossing roller 71 and the lower embossing roller 72 both penetrate the rotating mechanism 9 and are connected to the rotating motor 6;

[0047] The rotary motor 6 rotates inside the arc groove 3 as the upper embossing roller 71 and the lower embossing roller 72 rotate.

[0048] The squeezing mechanism 8 includes a lower squeezing roller 81 and an upper squeezing roller 82 , which are symmetrically arranged inside the fixed housing 1 , and the lower squeezing roller 81 and the upper squeezing roller 82 are arranged one above the other.

[0049] The sizes of the lower squeezing roller 81 and the upper squeezing roller 82 are both larger than those of the upper embossing roller 71 and the lower embossing roller 72, and sliding mechanisms 10 are provided on the outer sides of the lower squeezing roller 81 and the upper squeezing roller 82 for moving them up and down. The sliding mechanism 10 is arranged in a rectangular groove 4 on the outer wall of the fixed shell 1.

[0050] The sliding mechanism 10 comprises:

[0051] A connecting shaft 101 is coaxially connected to the outside of the extrusion mechanism 8, and a sliding block 102 is connected to the top bearing of the connecting shaft 101. The sliding block 102 slides inside the rectangular groove 4, and the top of the sliding block 102 is connected to the inner wall of the rectangular groove 4 through the extrusion spring 103;

[0052] The setting of the sliding mechanism enables the entire extrusion mechanism 8 to slide inside the sliding mechanism when it is squeezed and moved by the embossing mechanism 7, and the extrusion spring 103 inside the sliding mechanism can control the entire extrusion mechanism 8 to perform reset work, thereby ensuring that the extrusion mechanism 8 can perform basic extrusion work with the embossing mechanism 7.

[0053] The rotating mechanism 9 comprises:

[0054] The rotating rod 92 is arranged at the middle position of one side of the fixed housing 1, and the top ends of both sides of the rotating rod 92 are connected to the lower squeezing roller 81 and the upper squeezing roller 82 through bearings respectively;

[0055] A rotating shaft 91 is disposed in the middle of the rotating rod 92, and the top end of the rotating shaft 91 penetrates the outer wall of the fixed housing 1 and is connected to the driving motor 5;

[0056] Specifically, the setting of the rotating mechanism 9 can drive the upper embossing roller 71 and the lower embossing roller 72 on both sides thereof to be tilted when the rotating rod 92 rotates around the rotating axis 91, thereby controlling the distance between the upper squeezing roller 82 and the lower squeezing roller 81, thereby achieving the effect of adjusting according to the thickness of the roll paper and the thickness of the embossing.

[0057] Working principle: when the wetted paper roll is transported to the embossing device through the conveying device for embossing, it is necessary to control the top of the paper roll to pass through the two winding rollers on the fixed shell 1. Therefore, according to the different thicknesses of the paper roll and the different forces required for extrusion embossing, it is necessary to start the driving motor 5 so that it drives the rotating rod 92 at its top to rotate. When the rotating rod 92 rotates, it rotates around the rotating axis 91. When the rotating rod 92 rotates, it drives the upper embossing roller 71 and the lower embossing roller 72 at the top of the flow side to tilt. When the upper embossing roller 71 and the lower embossing roller 72 are rotating and tilting, their external parts will squeeze the upper squeezing roller 82 and the lower squeezing roller 81 on the squeezing mechanism 8. When squeezing, the upper embossing roller 71 and the lower embossing roller 72 are rotating and tilting. A sliding block 102 that can move in the rectangular groove 4 is arranged at the top of the upper squeezing roller 82 and the lower squeezing roller 81. Therefore, under the action of the sliding block 102, the upper squeezing roller 82 and the lower squeezing roller 81 can be controlled to squeeze and move. Due to the arrangement of the squeezing spring 103, the upper squeezing roller 82 and the lower squeezing roller 81 can be controlled to continuously perform reset work, thereby making the upper squeezing roller 82 and the lower squeezing roller 81 always in contact with each other between the upper embossing roller 71 and the lower embossing roller 72. Therefore, when the continuously conveyed roll paper is transmitted through the middle of the squeezing mechanism 8 and the embossing mechanism 7, the effect of continuous and efficient embossing can be achieved. The contents not described in detail in this specification belong to the prior art known to professional and technical personnel in this field.

[0058] Although the present invention has been described in detail with reference to the aforementioned embodiments, it is still possible for those skilled in the art to modify the technical solutions described in the aforementioned embodiments, or to make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A double-sided embossing process for a roll of paper, comprising the following steps; Step 1: The paper roll is conveyed. After the processing is completed, the dried paper roll is conveyed to the bottom of the humidification mechanism through the conveying mechanism; Step 2: Spray treatment of the paper roll. When the paper roll reaches the bottom of the humidification mechanism, the nozzles arranged above and below the humidification mechanism continuously spray to ensure that the inside and outside of the paper roll are humidified. Step three: embossing of the roll paper. The humidified roll paper reaches the inside of the embossing device, and performs extrusion embossing work inside the embossing device to complete the extrusion printing work on the inside and outside of the roll paper. Step 4: Drying of the paper roll. After printing, the paper roll is transported to the middle of the drying device and dried inside the drying device. Step 5: Cutting of the paper rolls: After the paper rolls are completely dried, they are cut by a cutting device; Step 6: The paper roll is wound up. After the slitting is completed, the paper roll machine continues to convey the paper roll and eventually winds it around the outside of the paper roll core to complete the winding work. Step seven: Packaging of the roll paper. After the paper roll is rolled up, it is transported to the bottom of the packaging machine to complete the packaging of the roll paper.

2. The double-sided embossing process for paper rolls according to claim 1, characterized in that: In the step 2, the distance between the nozzle at the top of the humidifying mechanism and the paper roll is controlled to be 5-10 mm.

3. The double-sided embossing process for paper rolls according to claim 1, characterized in that: The embossing device in step three comprises: A fixed housing (1) is arranged in a rectangular structure, and one side of the exterior of the housing is an open structure; Winding rollers (2) are arranged on both sides above the fixed housing (1) and are used for conveying the rolled paper; It is characterized by also including: The embossing body comprises an embossing mechanism (7) and an extrusion mechanism (8). The outer side of the embossing mechanism (7) is rotated by a rotating mechanism (9) to emboss with the extrusion mechanism (8), thereby achieving a complete embossing effect.

4. The double-sided embossing process for paper rolls according to claim 1, characterized in that: The embossing mechanism (7) comprises an upper embossing roller (71) and a lower embossing roller (72), which are symmetrically arranged inside the fixed housing (1), and the top ends of the upper embossing roller (71) and the lower embossing roller (72) both pass through the rotating mechanism (9) and are connected to the rotating motor (6); The rotating motor (6) rotates inside the arc groove (3) as the upper embossing roller (71) and the lower embossing roller (72) rotate.

5. The double-sided embossing process for paper rolls according to claim 1, characterized in that: The squeezing mechanism (8) comprises a lower squeezing roller (81) and an upper squeezing roller (82), which are symmetrically arranged inside the fixed shell (1), and the lower squeezing roller (81) and the upper squeezing roller (82) are arranged up and down.

6. The double-sided embossing process for paper rolls according to claim 5, characterized in that: The sizes of the lower squeezing roller (81) and the upper squeezing roller (82) are both larger than the sizes of the upper embossing roller (71) and the lower embossing roller (72), and sliding mechanisms (10) are provided on the outer sides of the lower squeezing roller (81) and the upper squeezing roller (82) for moving them up and down, and the sliding mechanisms (10) are arranged in a rectangular groove (4) on the outer wall of the fixed shell (1).

7. The double-sided embossing process for paper rolls according to claim 6, characterized in that: The sliding mechanism (10) comprises: A connecting shaft (101) is coaxially connected to the outside of the extrusion mechanism (8), and a sliding block (102) is connected to the top end bearing thereof. The sliding block (102) slides inside the rectangular groove (4), and the top end of the sliding block (102) is connected to the inner wall of the rectangular groove (4) via an extrusion spring (103).

8. The double-sided embossing process for paper rolls according to claim 3, characterized in that: The rotating mechanism (9) comprises: A rotating rod (92) is arranged at a middle position on one side of the fixed housing (1), and the top ends of both sides of the rotating rod (92) are connected to the lower squeezing roller (81) and the upper squeezing roller (82) respectively through bearings; A rotating shaft (91) is disposed in the middle of the rotating rod (92), and the top end of the rotating shaft (91) penetrates the outer wall of the fixed housing (1) and is connected to the driving motor (5).

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