A mold changing module with anti-cardboard explosion protection

Abstract

This invention provides a mold-changing module with anti-burst properties for cardboard, belonging to the field of carton forming technology. It includes: a transverse pressure beam located below the cardboard conveying direction, with at least one station on the beam, wherein the length direction of the station is aligned with the axis of the beam; and a forming die, mounted on the station by fasteners, with a forming groove on the die that matches the outer contour of the forming protrusion on the creasing wheel. When the cardboard is creasing, the forming protrusion on the creasing wheel, the pre-formed creasing position on the cardboard, and the corresponding forming groove on the forming die correspond to each other. This invention provides support to the cardboard during creasing by using a forming die, thus limiting the deformation of the cardboard to a preset path under pressure, restricting collapse outside the preset path, preventing the cardboard from bursting, and improving the quality of cardboard creasing.

Description

Technical Field

[0001] This utility model belongs to the field of cardboard box forming technology, and relates to a mold changing module, particularly a mold changing module with anti-cardboard explosion protection. Background Technology

[0002] Corrugated cardboard boxes are one of the most widely used packaging products, consistently ranking first in usage among all packaging products. Due to their superior performance and excellent processing properties, corrugated cardboard boxes have gradually replaced wooden boxes and other transport packaging containers, becoming the mainstay of transport packaging.

[0003] During the production of corrugated cardboard boxes, a creasing machine is used to press creases into the folded areas of the corrugated cardboard. However, because the surface layer of corrugated cardboard is a relatively thin sheet of paper, if the pressure applied by the creasing roller is too high, the corrugated cardboard may burst, affecting the quality of the creasing. If the pressure is too low, clear creasing cannot be formed on the surface of the corrugated cardboard, which is not conducive to the subsequent folding of the cardboard box. Utility Model Content

[0004] The purpose of this invention is to address the aforementioned problems in existing technologies by proposing a mold-changing module that can extrude clear indentations and prevent bursting.

[0005] The objective of this utility model can be achieved through the following technical solution: a mold-changing module with anti-cardboard-burst protection, comprising:

[0006] A transverse pressure beam is located below the paperboard conveying direction, and at least one station is provided on the transverse pressure beam, wherein the length direction of the station is consistent with the axial direction of the transverse pressure beam;

[0007] The forming die is installed on the work station by fasteners, and the forming die is provided with a forming groove that matches the outer contour of the forming protrusion on the creasing wheel. When the cardboard is creasing, the forming protrusion on the creasing wheel, the pre-formed creasing position on the cardboard, and the corresponding forming groove on the forming die correspond to each other.

[0008] In the aforementioned mold-changing module with anti-cardboard-bursting capability, there are multiple workstations arranged in a ring along the axis of the transverse pressure beam. There are multiple forming dies, which are installed on multiple workstations by fasteners. The forming groove on each forming die matches the forming protrusion on the corresponding indentation wheel.

[0009] In the aforementioned mold-changing module with anti-cardboard-bursting protection, different forming dies are switched by rotation. The horizontal pressure beam is driven to rotate either manually or by a motor.

[0010] In the aforementioned mold-changing module with anti-cardboard-bursting protection, the horizontal pressure bottom beam is arranged in a stepped manner, including a first shaft section located at both ends of the horizontal pressure bottom beam and a second shaft section located in the middle of the horizontal pressure bottom beam. The cross-section of the first shaft section is circular, and the cross-section of the second shaft section is polygonal. Multiple workstations are arranged on the second shaft section.

[0011] In the aforementioned mold changing module with anti-cardboard explosion protection, the workstation is arranged in a concave cavity. A positioning part is provided on the bottom of the cavity. The positioning part includes multiple positioning posts respectively located at each corner of the bottom of the cavity. When the forming die is installed in the cavity, the two sides of the forming die along the cardboard conveying direction abut against the positioning posts on the corresponding sides.

[0012] The aforementioned mold-changing module with anti-cardboard-bursting feature also includes two bearing seats, which are nested on the first shaft sections at both ends of the transverse pressure beam, and one side of each bearing seat abuts against the shoulder on the corresponding first shaft section; two bearing covers, which are nested on the first shaft sections at both ends of the transverse pressure beam, and the other side of each bearing seat abuts against the bearing cover on the corresponding side, and the connection between the bearing seats and the bearing covers is completed by fasteners.

[0013] The aforementioned mold-changing module with anti-cardboard-explosion function also includes two limiting blocks, which are located at both ends of the transverse pressure beam along the axial direction of the transverse pressure beam. A first limiting part is provided at the end of the transverse pressure beam, and a second limiting part is provided on the limiting block. The first limiting part and the second limiting part are interlocked.

[0014] In the aforementioned mold-changing module with anti-cardboard-bursting protection, the first limiting part includes at least a first limiting surface, and the second limiting part includes at least a second limiting surface, wherein the first limiting surface and the second limiting surface are in contact.

[0015] In the aforementioned mold-changing module with anti-cardboard-bursting capability, the first limiting part includes multiple first limiting surfaces, which are disposed on the first shaft section and arranged in a ring along the axial direction of the transverse pressure bottom beam. The number of multiple first limiting surfaces is the same as the number of multiple workstations, and the multiple first limiting surfaces correspond one-to-one with the multiple workstations. The second limiting part includes a U-shaped groove and multiple second limiting surfaces, which are located on both sides of the opening end of the U-shaped groove and the closed end of the U-shaped groove.

[0016] In the aforementioned mold-changing module with anti-cardboard-bursting feature, a pin is provided at the end of the limiting block away from the second limiting part.

[0017] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0018] (1) The present invention provides a mold-changing module with anti-bursting cardboard, which provides support to the cardboard during creasing by setting a forming die, thereby limiting the deformation of the cardboard to a preset path when under pressure, restricting the collapse of areas outside the preset path, avoiding the cardboard from bursting and improving the quality of cardboard creasing. In addition, the number of forming dies is multiple, which can be matched with different creasing wheels, improving the versatility of the mold-changing module.

[0019] (2) Different forming dies can be switched by rotation, which is convenient, reliable and quick. The horizontal pressure bottom beam can be driven to rotate manually or by a motor.

[0020] (3) The cross section of the first shaft section is set to be circular to facilitate the circumferential rotation of the horizontal pressure bottom beam. The cross section of the second shaft section is set to be polygonal. On the one hand, this reduces the processing technology of the matching forming die and facilitates the installation of the forming die. On the other hand, it makes the forming die and the paperboard in surface contact when the indentation wheel presses the paperboard in the forward direction, which can provide good support for the paperboard and further avoid the occurrence of crushing.

[0021] (4) By setting bearing seats and bearing covers, the horizontal pressure bottom beam can be limited on the one hand to prevent axial movement of the horizontal pressure bottom beam, and on the other hand, the horizontal pressure bottom beam can rotate more smoothly.

[0022] (5) By interlocking the first limiting part and the second limiting part, the horizontal pressure beam of the cardboard is prevented from rotating freely during the creasing stage, thereby improving the reliability of creasing. Attached Figure Description

[0023] Figure 1 This is a schematic diagram of the structure of a mold-changing module with anti-cardboard-bursting function according to the present invention.

[0024] Figure 2 yes Figure 1 A magnified structural diagram of point A in the middle.

[0025] Figure 3 This is a schematic diagram illustrating the use of a mold-changing module with anti-cardboard-bursting properties according to this utility model.

[0026] In the picture,

[0027] 100. Horizontal pressure bottom beam; 110. Workstation; 120. First shaft section; 121. First limiting surface; 130. Second shaft section; 140. Positioning column;

[0028] 200. Forming die; 210. Forming groove;

[0029] 300. Bearing housing;

[0030] 400. Bearing cover;

[0031] 500, limiting block; 510, U-shaped groove; 511, second limiting surface; 520, pin. Detailed Implementation

[0032] The following are specific embodiments of the present invention, which are described in conjunction with the accompanying drawings. However, the present invention is not limited to these embodiments.

[0033] It should be noted that all directional indicators (such as up, down, left, right, front, back, etc.) in this utility model embodiment are only used to explain the relative positional relationship and movement of each component in a certain specific posture (as shown in the figure). If the specific posture changes, the directional indicator will also change accordingly.

[0034] like Figures 1 to 3 As shown, the present invention provides a mold changing module with anti-cardboard bursting protection, comprising:

[0035] A transverse pressure beam 100 is located below the paperboard conveying direction, and multiple workstations 110 are provided on the transverse pressure beam 100. The multiple workstations 110 are arranged in a ring along the axial direction of the transverse pressure beam 100, wherein the length direction of the workstations 110 is consistent with the axial direction of the transverse pressure beam 100.

[0036] Multiple forming dies 200 correspond one-to-one with multiple workstations 110 and are installed on the corresponding workstations 110 by fasteners. Each forming die 200 is provided with a forming groove 210 that matches different indentation wheels.

[0037] In use, the mold changing module is located below the cardboard, and the creasing wheel is located above the cardboard. The protruding forming ridges on the creasing wheel, the pre-formed creasing positions on the cardboard, and the forming grooves 210 on the forming die 200 correspond one-to-one. When the creasing wheel moves along the axis of the mold changing module, a clear creasing is formed on the surface of the cardboard, and the cardboard will not be crushed during the forming process.

[0038] It is worth mentioning that when the creasing wheel applies downward pressure, if there is no forming die 200 under the cardboard, the area under the cardboard is empty or only supported by a soft conveyor belt / rubber pad. The force will be concentrated in a localized area below the contact point of the creasing wheel, causing the cardboard core to be over-compressed or even crushed due to lack of support, resulting in "cardboard bursting." However, by setting a forming die 200 under the cardboard, with the forming groove 210 on the die 200 corresponding to the forming protrusion on the creasing wheel, and both positioned on the upper and lower sides of the cardboard, the forming die 200 provides support for the cardboard. This ensures that the cardboard can only deform along a preset path when under pressure, thus limiting collapse in areas outside the preset path and preventing the cardboard from bursting, thereby improving the quality of the cardboard creasing.

[0039] This utility model provides a mold-changing module with anti-burst cardboard design. By setting a forming die 200 to support the cardboard during creasing, the cardboard is limited to deforming along a preset path under pressure, preventing collapse in areas outside the preset path and avoiding bursting of the cardboard, thus improving the quality of the cardboard creasing. In addition, multiple forming dies 200 can be used to match different creasing wheels, improving the versatility of the mold-changing module.

[0040] Furthermore, it is pointed out that by rotating the transverse pressure bottom beam 100 circumferentially, different forming dies 200 are matched with different indentation wheels to achieve extrusion of different indentations.

[0041] In this embodiment, different forming dies 200 are switched by rotation, which is convenient, reliable and quick. The horizontal pressure beam 100 can be driven to rotate manually or by a motor.

[0042] More preferably, the transverse pressure bottom beam 100 is arranged in a stepped shape, including a first shaft section 120 located at both ends of the transverse pressure bottom beam 100 and a second shaft section 130 located in the middle of the transverse pressure bottom beam 100, and the cross section of the first shaft section 120 is circular, and the cross section of the second shaft section 130 is polygonal, wherein a plurality of workstations 110 are arranged on the second shaft section 130.

[0043] In this embodiment, the cross-section of the first shaft segment 120 is set to be circular to facilitate the circumferential rotation of the transverse pressure bottom beam 100, and the cross-section of the second shaft segment 130 is set to be polygonal. On the one hand, this reduces the processing technology of the matching forming die 200 and facilitates the installation of the forming die 200. On the other hand, when the indentation wheel presses the cardboard in the forward direction, the forming die 200 and the cardboard are in surface-to-surface contact, which can provide good support for the cardboard and further prevent the occurrence of crushing.

[0044] It is worth mentioning that when the number of forming dies 200 is less than the number of stations 110, the excess stations 110 can be filled with PU skin to protect the corresponding stations 110.

[0045] More preferably, the work station 110 is provided as a concave cavity, and the length of the concave cavity is greater than the length of the forming die 200.

[0046] It is worth mentioning that a positioning part is provided on the bottom of the cavity. The positioning part includes a plurality of positioning posts 140 respectively located at each corner of the bottom of the cavity. When the forming die 200 is installed in the cavity, the two sides of the forming die 200 along the paperboard conveying direction abut against the corresponding positioning posts 140, thereby controlling the degree of freedom of the forming die 200 along the paperboard conveying direction.

[0047] Preferably, it also includes two bearing seats 300, which are respectively nested on the first shaft segments 120 at both ends of the transverse pressure bottom beam 100, and one side of the two bearing seats 300 abuts against the shoulder on the corresponding first shaft segment 120; two bearing covers 400, which are respectively nested on the first shaft segments 120 at both ends of the transverse pressure bottom beam 100, and the other side of the two bearing seats 300 abuts against the bearing cover 400 on the corresponding side, and the connection between the bearing seats 300 and the bearing covers 400 is completed by fasteners.

[0048] In this embodiment, by setting the bearing seat 300 and the bearing cover 400, the transverse pressure bottom beam 100 can be limited to prevent axial movement of the transverse pressure bottom beam 100, and the transverse pressure bottom beam 100 can rotate more smoothly during rotation.

[0049] Preferably, it further includes two limiting blocks 500, and the two limiting blocks 500 are located at both ends of the transverse pressure bottom beam 100 along the axial direction of the transverse pressure bottom beam 100. A first limiting part is provided at the end of the transverse pressure bottom beam 100, and a second limiting part is provided on the limiting block 500. The circumferential degree of freedom of the transverse pressure bottom beam 100 is limited by the plug-in cooperation between the first limiting part and the second limiting part.

[0050] In this embodiment, the insertion and cooperation of the first limiting part and the second limiting part prevents the cardboard from rotating freely during the creasing stage, thereby improving the reliability of creasing.

[0051] More preferably, the first limiting portion includes at least a first limiting surface 121, and the second limiting portion includes at least a second limiting surface 511, wherein the first limiting surface 121 and the second limiting surface 511 are in contact.

[0052] More preferably, the first limiting part includes a plurality of first limiting surfaces 121, and the plurality of first limiting surfaces 121 are disposed on the first shaft segment 120 and arranged in a ring along the axial direction of the transverse pressure bottom beam 100. The number of the plurality of first limiting surfaces 121 is the same as the number of the plurality of workstations 110, and the plurality of first limiting surfaces 121 correspond one-to-one with the plurality of workstations 110. The second limiting part includes a U-shaped groove 510 and a plurality of second limiting surfaces 511, wherein the plurality of second limiting surfaces 511 are located on both sides of the opening end of the U-shaped groove 510 and the closed end of the U-shaped groove 510.

[0053] It is worth mentioning that when it is necessary to switch the forming die 200, firstly release the insertion fit between the limiting block 500 and the horizontal pressure bottom beam 100, then rotate the horizontal pressure bottom beam 100 so that the required forming die 200 is set upwards, and then complete the insertion fit between the limiting block 500 and the horizontal pressure bottom beam 100 again, thereby limiting the circumferential degree of freedom of the horizontal pressure bottom beam 100.

[0054] One method to release the plug-in connection between the limiting block 500 and the horizontal pressure bottom beam 100 is to directly remove the limiting block 500, and after the horizontal pressure bottom beam 100 is rotated into place, reinstall the limiting block 500 to complete the plug-in connection between the limiting block 500 and the horizontal pressure bottom beam 100.

[0055] More preferably, a pin 520 is provided at one end of the limiting block 500 away from the second limiting part, so as to achieve precise positioning of the limiting block 500 during the installation process.

[0056] It should be noted that in this utility model, the use of terms such as "first," "second," and "a" is for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include at least one of those features. In the description of this utility model, "multiple" means at least two, such as two, three, etc., unless otherwise explicitly defined. The terms "connection," "fixed," etc., should be interpreted broadly. For example, "fixed" can mean a fixed connection, a detachable connection, or an integral part; it can mean a mechanical connection or an electrical connection; it can mean a direct connection or an indirect connection through an intermediate medium; it can mean the internal communication of two elements or the interaction between two elements, unless otherwise explicitly defined. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0057] Furthermore, the technical solutions of the various embodiments of this utility model can be combined with each other, but only if they are based on the ability of those skilled in the art to implement them. When the combination of technical solutions is contradictory or cannot be implemented, it should be considered that such combination of technical solutions does not exist and is not within the scope of protection claimed by this utility model.

[0058] The specific embodiments described herein are merely illustrative examples illustrating the spirit of this utility model. Those skilled in the art to which this utility model pertains may make various modifications or additions to the described specific embodiments or use similar methods to substitute them, without departing from the spirit of this utility model or exceeding the scope defined by the appended claims.

Claims

1. A changeover die module having protection against cardboard blowout, characterized in that, include: A transverse pressure beam is located below the paperboard conveying direction, and at least one station is provided on the transverse pressure beam, wherein the length direction of the station is consistent with the axial direction of the transverse pressure beam; The forming die is installed on the work station by fasteners, and the forming die is provided with a forming groove that matches the outer contour of the forming protrusion on the creasing wheel. When the cardboard is creasing, the forming protrusion on the creasing wheel, the pre-formed creasing position on the cardboard, and the corresponding forming groove on the forming die correspond to each other.

2. The mold changing module with anti-cardboard-burst protection according to claim 1, characterized in that, There are multiple workstations, which are arranged in a ring along the axis of the transverse pressure bottom beam. There are multiple forming dies, which are installed on multiple workstations by fasteners. The forming groove on each forming die matches the forming protrusion on the corresponding indentation wheel.

3. The mold changing module with anti-cardboard-burst protection according to claim 2, characterized in that, Different forming dies are switched by rotation. The horizontal pressure beam can be driven to rotate manually or by a motor.

4. The mold-changing module with anti-cardboard-burst protection according to any one of claims 1 to 3, characterized in that, The transverse pressure bottom beam is arranged in a stepped manner, including a first axial section located at both ends of the transverse pressure bottom beam and a second axial section located in the middle of the transverse pressure bottom beam. The cross-section of the first axial section is circular, and the cross-section of the second axial section is polygonal. Multiple workstations are arranged on the second axial section.

5. The mold changing module with anti-cardboard-burst protection according to claim 1, characterized in that, The workstation is set in a concave cavity, and a positioning part is set on the bottom of the cavity. The positioning part includes multiple positioning posts respectively set on each corner of the bottom of the cavity. When the forming die is installed in the cavity, the two sides of the forming die along the paperboard conveying direction abut against the positioning posts on the corresponding sides.

6. The mold changing module with anti-cardboard-burst protection according to claim 4, characterized in that, It also includes two bearing seats, which are nested on the first shaft sections at both ends of the transverse pressure bottom beam, and one side of the two bearing seats abuts against the shoulder on the corresponding first shaft section; two bearing caps, which are nested on the first shaft sections at both ends of the transverse pressure bottom beam, and the other side of the two bearing seats abuts against the bearing cap on the corresponding side, and the connection between the bearing seats and the bearing caps is completed by fasteners.

7. The mold changing module with anti-cardboard-burst protection according to claim 4, characterized in that, It also includes two limiting blocks, which are located at both ends of the transverse pressure bottom beam along the axial direction of the transverse pressure bottom beam. A first limiting part is provided at the end of the transverse pressure bottom beam, and a second limiting part is provided on the limiting block. The first limiting part and the second limiting part are interlocked.

8. The mold changing module with anti-cardboard-burst protection according to claim 7, characterized in that, The first limiting part includes at least a first limiting surface, and the second limiting part includes at least a second limiting surface, wherein the first limiting surface and the second limiting surface are in contact.

9. The mold changing module with anti-cardboard-burst protection according to claim 8, characterized in that, The first limiting part includes multiple first limiting surfaces, which are disposed on the first shaft section and arranged in a ring along the axial direction of the transverse pressure bottom beam. The number of multiple first limiting surfaces is the same as the number of multiple workstations, and the multiple first limiting surfaces correspond one-to-one with the multiple workstations. The second limiting part includes a U-shaped groove and multiple second limiting surfaces, which are located on both sides of the opening end of the U-shaped groove and the closed end of the U-shaped groove.

10. The mold changing module with anti-cardboard-burst protection according to claim 7, characterized in that, A pin is provided at the end of the limit block away from the second limit part.

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