Folding processing equipment and folding processing control method

Abstract

The invention provides folding processing equipment and a folding processing control method. The folding processing equipment is used for processing blanks and comprises a conveying belt, a first positioning module, a glue scraping module and a forming module. Wherein the blank moves along the conveyor belt. The first positioning module is arranged along the conveying belt and is configured to be capable of adjusting the blank to a preset posture. The glue scraping module is arranged along the conveying belt, the glue scraping module is located on the downstream of the first positioning module in the moving direction of the conveying belt, the glue scraping module is configured to add glue in a preset range in the blank, and the preset range is smaller than the area of the blank. The forming module is arranged along the conveying belt, located on the downstream of the glue scraping module in the moving direction of the conveying belt and configured to fold and form the blank along a preset trace. According to the embodiment of the invention, the accuracy of adding the mucilage glue can be improved, the production process can be completed on the same production line, automatic control can be carried out, the manual operation intensity and the production cost are reduced, and the automatic control and the integration degree are higher.

Description

Technical Field

[0001] The present invention generally relates to the technical field of automatic control systems, and in particular to a folding processing device and a folding processing control method. Background Art

[0002] When folding sheets or plates, for example, when folding paper materials or plastic sheets, plastic films, etc. to prepare various printed materials, packaging devices, filling structures, etc., the folding process usually requires the process of adding adhesive and pasting, such as processing and producing envelopes, packaging bags and other products, or structural panels that require double-layer reinforcement.

[0003] The process of adding adhesive requires a high degree of accuracy. At the same time, it is affected by the viscosity and fluidity of the adhesive. The adhesive can easily contaminate the automated production equipment, causing the equipment and the blank to stick together, affecting the movement of the equipment and the yield rate. On the other hand, the product usually requires the coordination of adhesive and folding. The shape and position of the blank change when folding, further increasing the risk of adhesion with adhesive.

[0004] In view of this situation, the existing processing is usually completed manually, which has low work efficiency and high cost, or the folding and pasting processes are split up, executed on different equipment and then combined, which requires more equipment, occupies a larger space, and is difficult to adjust the production rhythm of different equipment.

[0005] The contents of the background technology section are merely the technologies known to the inventors and do not necessarily represent the prior art in the field. Summary of the invention

[0006] In view of one or more defects in the prior art, the present invention provides a folding processing device for processing a blank, the folding processing device comprising:

[0007] a conveyor belt along which the blank moves;

[0008] A first positioning module, which is disposed along the conveyor belt and is configured to adjust the blank to a preset posture;

[0009] a scraping module, the scraping module being arranged along the conveyor belt and being located downstream of the first positioning module in the moving direction of the conveyor belt, the scraping module being configured to add glue in a preset range in the blank, the preset range being smaller than the area of ​​the blank; and

[0010] A forming module is provided along the conveyor belt, and the forming module is located downstream of the scraping module in the moving direction of the conveyor belt, and is configured to fold and form the blank along a preset trace.

[0011] According to one aspect of the present invention, the conveyor belt comprises a first fixing device, which is located between the first positioning module and the scraping module and is configured to keep the blank in a preset posture and adhere to the surface of the conveyor belt.

[0012] According to one aspect of the present invention, the folding processing equipment also includes a guiding module, which is arranged along the conveyor belt, and the guiding module is located upstream of the first positioning module in the movement direction of the conveyor belt, and is configured to adjust the angle of the blank on the conveyor belt.

[0013] According to one aspect of the present invention, the blank is in the shape of a flat plate, and the guide module includes a drawing gauge, which is arranged on the conveyor belt and applies a pressure perpendicular to the conveyor belt to the blank.

[0014] According to one aspect of the present invention, the folding processing equipment also includes a feeding module, which is arranged upstream of the moving direction of the conveyor belt. The blanks are stored in the feeding module, and the blanks located at the bottom of the feeding module are attached to the conveyor belt.

[0015] According to one aspect of the present invention, the feeding module includes a baffle, which is located above the conveyor belt, and the distance between the lower edge of the baffle and the conveyor belt is greater than the thickness of the blank and less than twice the thickness of the blank, so that the blank moves along the conveyor belt in sequence.

[0016] According to one aspect of the present invention, the molding module comprises:

[0017] A forming die, the forming die is close to the end of the conveyor belt in the moving direction, a limit block is arranged in the circumference of the forming die, and the limit block is arranged according to the preset trace of the blank; and

[0018] A pressing portion, the pressing portion is disposed above the forming die and is configured to apply pressure to the blank toward the forming die so that the blank is bent at the position of the preset mark;

[0019] A folding portion is disposed on a side of the forming mold and is configured to push or press a bent portion of the blank so that the bent portion is folded and adhered to a position where glue is added in the blank.

[0020] According to one aspect of the present invention, the forming die further comprises a second fixing device, and the second fixing device is configured to fix the blank in the forming die so that the blank fits with the bottom surface of the forming die.

[0021] According to one aspect of the present invention, the position where the pressing portion presses on the blank is misaligned with the position where the adhesive is added into the blank, so as to prevent the pressing portion from adhering to the blank.

[0022] According to one aspect of the present invention, a notch or a through hole is provided on the limit block, and the folding portion extends from the position of the notch or the through hole to the interior of the forming mold, and is configured to extrude the side surface of the bent portion of the blank so that the bent portion of the blank is folded and pasted to the position where glue is added in the blank.

[0023] According to one aspect of the present invention, the folding processing equipment further comprises a pressure holding module, which is disposed downstream of the forming module and is configured to press the folded and formed blank.

[0024] According to one aspect of the present invention, the folding processing equipment further comprises a first transfer device, wherein the first transfer device is configured to transfer the blank from the forming module to the pressure holding module; or

[0025] The pressing portion further comprises a grabbing device, which is configured to grab the folded blank and transfer the blank to the pressure holding module.

[0026] According to one aspect of the present invention, the pressure-maintaining module comprises: a flat pressing device and / or a rolling pressing device; when the pressure-maintaining module comprises a flat pressing device and a rolling pressing device, the rolling pressing device is arranged downstream of the flat pressing device.

[0027] According to one aspect of the present invention, the pressure-maintaining module includes a flat-pressing device, which is configured to apply a positive pressure perpendicular to the folded blank and maintain the pressure for a preset time.

[0028] According to one aspect of the present invention, the first positioning module includes:

[0029] A position sensor configured to obtain a position of the blank on the conveyor belt, wherein the position sensor communicates with the conveyor belt, and the conveyor belt stops when the blank moves along the conveyor belt to a first position; and

[0030] A positioning fixture is provided, wherein the positioning fixture communicates with the position sensor or the conveyor belt, and when the conveyor belt stops, the positioning fixture adjusts the blank to the preset posture.

[0031] According to one aspect of the present invention, the preset time duration during which the flat pressing device applies a positive pressure perpendicular to the folded blank to the blank at least partially coincides with the time duration during which the conveyor belt is stopped.

[0032] According to one aspect of the present invention, the folding processing equipment further includes a second transfer device, which is disposed downstream of the pressure-keeping module and is configured to transfer the blank output by the pressure-keeping device to a preset position.

[0033] According to one aspect of the present invention, the folding processing equipment further includes a second positioning module, which is disposed between the glue scraping module and the forming module and is configured to adjust the blank to which the glue is added to the preset posture.

[0034] According to one aspect of the present invention, the present invention also relates to a folding process control method, using the folding process equipment as described above, comprising:

[0035] Providing blanks, and adding the blanks to the conveyor belt;

[0036] Obtaining the position of the blank on the conveyor belt;

[0037] When the blank moves to the first position, adjusting the blank to a preset posture;

[0038] Adding adhesive within a preset range on the surface of the blank;

[0039] The blank is folded, and the folded portion of the blank is pasted within the preset range.

[0040] Compared with the prior art, an embodiment of the present invention provides a folding processing equipment that can scrape glue and fold and paste the blank, wherein the first positioning module can adjust the posture of the blank before scraping glue on the blank so that the blank can correspond to the glue scraping module, and add glue within a preset range of the blank. At the same time, the amount of glue is easier to control, and the forming module is further used to fold and paste the blank, which is beneficial to improve the accuracy of adding glue. At the same time, the production process can be completed on the same production line, and automatic control can be performed, which reduces the intensity of manual operation and production costs, and has higher automation control and integration.

[0041] The present invention also relates to a folding process control method, which is executed using the above-mentioned folding process equipment. BRIEF DESCRIPTION OF THE DRAWINGS

[0042] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. Together with the embodiments of the present invention, they are used to explain the present invention and do not constitute a limitation of the present invention. In the accompanying drawings:

[0043] Figure 1 is a schematic diagram of the structure of a folding processing device in some embodiments of the present invention;

[0044] Figure 2is a structural block diagram of a folding processing device in some embodiments of the present invention;

[0045] Figure 3 is a schematic diagram of the structure of a guide module and a feeding module in some embodiments of the present invention;

[0046] Figure 4 is a schematic diagram of the structure of a molding module in some embodiments of the present invention;

[0047] Figure 5 Schematic diagram of a blank in some embodiments of the present invention;

[0048] Figure 6 is a schematic structural diagram of a pressure-maintaining module in some embodiments of the present invention;

[0049] Figure 7 is a structural block diagram of a first positioning module in some embodiments of the present invention;

[0050] Figure 8 is a schematic diagram of the structure of the second transfer device in some embodiments of the present invention;

[0051] Fig. 9 It is a flowchart of a folding process control method in some embodiments of the present invention. DETAILED DESCRIPTION

[0052] In the following, only some exemplary embodiments are briefly described. As those skilled in the art will appreciate, the described embodiments may be modified in various ways without departing from the spirit or scope of the present invention. Therefore, the drawings and descriptions are considered to be exemplary and non-restrictive in nature.

[0053] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, which are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first" and "second" are only used for descriptive purposes, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present invention, the meaning of "multiple" is two or more, unless otherwise clearly and specifically defined.

[0054] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection, an electrical connection, or can communicate with each other; it can be directly connected, or indirectly connected through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0055] In the present invention, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may include that the first and second features are in direct contact, or may include that the first and second features are not in direct contact but are in contact through another feature between them. Moreover, a first feature being "above", "above" and "above" a second feature includes that the first feature is directly above and obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. A first feature being "below", "below" and "below" a second feature includes that the first feature is directly below and obliquely below the second feature, or simply means that the first feature is lower in level than the second feature.

[0056] The disclosure below provides many different embodiments or examples to realize different structures of the present invention. In order to simplify the disclosure of the present invention, the parts and settings of specific examples are described below. Of course, they are only examples, and the purpose is not to limit the present invention. In addition, the present invention can repeat reference numbers and / or reference letters in different examples, and this repetition is for the purpose of simplicity and clarity, which itself does not indicate the relationship between the various embodiments and / or settings discussed. In addition, the present invention provides various specific examples of processes and materials, but those of ordinary skill in the art can be aware of the application of other processes and / or the use of other materials.

[0057] The embodiments of the present invention are described below in conjunction with the accompanying drawings. It should be understood that the embodiments described herein are only used to illustrate and explain the present invention, and are not used to limit the present invention.

[0058] Figure 1 and Figure 2 The structure of the folding processing device 1 according to some embodiments of the present invention is shown. Figure 2 The arrow in the lower middle indicates the moving direction of the conveyor belt 11, and the arrows between different modules indicate the moving direction of the blank 2. Figure 1 and Figure 2 The folding processing equipment 1 will be described.

[0059] The folding processing device 1 in this embodiment is used to process the blank 2. Specifically, the blank 2 can be a plate or sheet of paper, plastic or other materials. The folding processing device 1 can be used to process the blank 2 according to a preset folding and pasting method. The blank 2 is pre-processed into a specific shape. For example, the blank is gray board paper or corrugated paper. The whole piece of raw material is cut to obtain the blank 2. In a preferred embodiment, the blank 2 can also be processed with preset marks, such as indentation lines or die-cutting lines, so as to facilitate the positioning of the folding position of the blank 2 during the processing process, which will be specifically described in the subsequent embodiments.

[0060] like Figure 1 and Figure 2 As shown, the folding processing equipment 1 includes a conveyor belt 11, a first positioning module 12, a glue scraping module 13 and a molding module 14. The first positioning module 12, the glue scraping module 13 and the molding module 14 are arranged along the conveyor belt 11, and the conveyor belt 11 can be used to transport the blank 2 to positions corresponding to the first positioning module 12, the glue scraping module 13 and the molding module 14 respectively for processing.

[0061] Specifically, the blank 2 moves along the conveyor belt 11. In different embodiments of the present invention, the form of the conveyor belt 11 is not limited. For example, it can be a belt conveyor belt or a roller conveyor belt, etc. Preferably, the conveyor belt 11 is configured to have a flat surface to provide uniform support force for the blank 2, which is beneficial for maintaining a stable posture of the blank 2 on the conveyor belt 11.

[0062] The first positioning module 12 is arranged along the conveyor belt 11, and is arranged to be able to adjust the blank 2 to a preset posture. In this embodiment, the first positioning module 12 is used to adjust the posture of the blank 2, which can improve the accuracy of the alignment of the blank 2, the scraping module 13, and the forming module 14, and improve the processing accuracy. The first positioning module 12 can be set as a manipulator, which adjusts the posture of the blank 2 on the conveyor belt 11 after grabbing (including different acquisition methods such as suction) the blank 2. The preset posture can be saved in the terminal that controls the movement of the manipulator, which is conducive to improving the accuracy of the posture of the blank 2.

[0063] In other embodiments, the first positioning module 12 may also include a single-direction or multi-directional push-pull rod controlled by a cylinder or a motor, which will be specifically described in subsequent embodiments. The blank 2 is pushed and pulled on the surface of the conveyor belt 11 to adjust the posture of the blank 2 on the conveyor belt 11, which can reduce costs and control difficulty. The position and posture of the blank 2 on the conveyor belt 11 can be obtained by a sensor, such as an image sensor or a photoelectric sensor.

[0064] The glue scraping module 13 is arranged along the conveyor belt 11, and the glue scraping module 13 is arranged downstream of the first positioning module 12 in the movement direction of the conveyor belt 11. In this embodiment, the glue scraping module 13 can add glue to a preset range of the blank 2, and the preset range with added glue is smaller than the area of ​​the blank 2.

[0065] In a preferred embodiment of the present invention, the scraper module 13 can be arranged above the conveyor belt 11 along the direction of the conveyor belt 11. When the blank 2 moves with the conveyor belt 11, it passes under the scraper module 13. By controlling the scraper module 13, adhesive is formed in a preset range on the surface of one side of the blank 2 facing the scraper module 13. Specifically, the scraper module 13 can be arranged to be able to move in the vertical direction, approaching or moving away from the conveyor belt 11. For example, the scraper module 13 adds hot melt adhesive to the blank 2. By controlling the height of the scraper module 13, the cooling time of the hot melt adhesive on the blank 2 can be controlled to reduce the risk of adhesion. Alternatively, when the blank 2 moves to the bottom of the scraper module 13, the scraper module 13 approaches the blank 2. When the blank 2 continues to move along the conveyor belt 11 and leaves the bottom range of the scraper module 13, the scraper module 13 can be controlled to rise and move away from the conveyor belt to prevent the hot melt adhesive from dripping on the conveyor belt 11 due to fluidity. In other embodiments, the glue scraping module 13 can also form water-based glue on the blank 2, for example, by adding glue to the blank 2 by means of a rolling brush.

[0066] The preset range on the blank 2 is smaller than the area of ​​the blank 2, wherein the area of ​​the blank 2 refers to the area of ​​the surface of the blank 2 facing the scraping module 13, the preset range is on the surface of the blank 2, and there is a partial area without glue on the surface of the blank 2 facing the scraping module 13, so as to facilitate subsequent operations on the blank 2, for example, the blank 2 can be grasped or fixed in the area without glue. Preferably, the preset range with glue added is evenly distributed on the surface of the blank 2, and the preset range and the area without glue can be arranged at intervals.

[0067] The forming module 14 is arranged along the conveyor belt 11, and the forming module 14 is arranged downstream of the scraper module 13 in the moving direction of the conveyor belt 11. Preferably, the forming module 14 can be arranged at the end of the moving direction of the conveyor belt 11. In this embodiment, the forming module 14 is configured to be able to fold and shape the blank 2 along a preset trace. The preset trace can be pre-processed on the blank 2, or the blank can be directly folded by the forming module 14. The forming module 14 can fold the blank 2 using a mold, or can use a clamping and fixing device to drive the blank 2 to move so as to fold the blank 2. The specific structure of the forming model 14 is described in detail in the subsequent embodiments. Preferably, after the forming module 14 folds the blank 2, the bent part of the blank 2 is glued to fix it.

[0068] In this embodiment, the process of adding glue and the process of folding and forming are performed on the same production line through a continuous conveyor belt 11, which is conducive to reducing the number of equipment and achieving higher integration. In this embodiment, the first positioning module 12 is used to adjust the posture of the blank 2 on the conveyor belt 11, so that the blank 2 maintains a preset posture, and cooperates with the scraping module 13 to improve the accuracy of positioning. At the same time, the preset range of the scraping module 13 adding glue to the blank 2 is smaller than the area of ​​the blank 2, so that a part of the surface of the blank 2 without glue is retained, which is convenient for subsequent operations on the blank 2, such as grabbing, pressing, etc., which is conducive to reducing glue adhesion and reducing the failure rate of the folding processing equipment 1.

[0069] like Figure 2 As shown, according to a preferred embodiment of the present invention, the conveyor belt 11 includes a first fixing device 111, the first fixing device 111 is located between the first positioning module 12 and the scraping module 13, and the first fixing device 111 is configured to enable the blank 2 to maintain a preset posture and fit on the surface of the conveyor belt 11. In this embodiment, after the first positioning module 12 adjusts the posture of the blank 2 to the preset posture, the first fixing device 111 can be used to enable the blank 2 to maintain the preset posture during the process of moving from the first positioning module 12 to the scraping module 13, thereby further improving the alignment accuracy of the blank 2 and the scraping module 13.

[0070] Specifically, the first fixing device 111 can be located above the blank 2. For example, the first fixing device 111 includes a pressure bar, which can press the blank 2 against the upper surface of the conveyor belt 11, and utilize the pressure applied by the pressure bar and the friction between the blank 2 and the upper surface of the conveyor belt 11 to keep the blank 2 in a preset posture.

[0071] According to a preferred embodiment of the present invention, the first fixing device 111 can also be arranged below the blank 2. For example, the conveyor belt 11 is a belt conveyor belt, and a plurality of through holes are provided on the surface of the belt. The first fixing device 111 includes a vacuum adsorption device, which is arranged below the belt. The blank 2 can be attached to the belt in a preset posture by vacuum adsorption. In this embodiment, the use of vacuum adsorption is conducive to simplifying the structure of the conveyor belt 11, which is suitable for flat-plate-shaped blanks 2, and the control method is simple. The vacuum adsorption device can be set to run continuously or to be synchronously controlled with the start and stop of the conveyor belt 11, without providing a separate control program.

[0072] In a preferred embodiment of the present invention, the folding processing device 1 further includes a guide module 15, such as Figure 1As shown, the guide module 15 is arranged along the conveyor belt 11, and the guide module 15 is located upstream of the first positioning module 12 in the moving direction of the conveyor belt 11, and the guide module 15 is arranged to be able to adjust the angle of the blank 2 on the conveyor belt 11. That is, in this embodiment, the blank 2 is first adjusted in angle by the guide module 15, and then adjusted to a preset posture by the first positioning module 12. The guide module 15 can make a preliminary adjustment to the blank 2, reducing the difficulty of the first positioning module 12 in adjusting the posture of the blank 2, and the provision of the guide module 15 is conducive to improving the working efficiency of the folding processing equipment 1.

[0073] Specifically, the blank 2 is transferred to the folding processing equipment 1 by other conveyor belts, or the folding processing equipment 1 includes a module for storing the blank 2, which will be described in detail later. The blank 2 is roughly in the shape of a flat plate, such as a cardboard or plastic plate. In the process of placing the flat-plate-shaped blank 2 on the conveyor belt 11, the wind resistance of the blank 2 itself will cause the blank 2 to tilt. For example, the blank 2 is placed on the conveyor belt 11 from top to bottom. Under the influence of wind resistance, different parts of the blank 2 may contact the conveyor belt 11 at different times. For example, one end of the blank 2 contacts the conveyor belt 11, and the other end may remain suspended. At the same time, the conveyor belt 11 is operating normally, and the end contacting the conveyor belt 11 will move with the conveyor belt 11, causing the blank 2 to have a larger tilt angle on the conveyor belt 11, which increases the difficulty of the first positioning module 12 to adjust the posture of the blank 2.

[0074] The guide module 15 in this embodiment includes, for example, a drawing gauge, which can be used to position the blank 2 during its movement along the conveyor belt 11. Figure 3 As shown, the drawing gauge can be arranged above the conveyor belt 11, extending along the moving direction of the conveyor belt 11, applying pressure perpendicular to the conveyor belt 11 to the blank 2, and located on both sides of the long side direction of the blank 2, or located on both sides and the middle of the long side direction of the blank 2. During the movement of the blank 2 along the conveyor belt 11, the drawing gauge can adjust the movement speed of the blank 2 at different positions, and adjust the angle of the blank 2 on the conveyor belt 11. In this embodiment, the drawing gauge does not need to be controlled separately, and the pressure applied by the drawing gauge to the blank 2 can be adjusted according to the thickness of the blank 2, and the drawing gauge does not need to be controlled separately.

[0075] In other embodiments of the present invention, the guide module 15 may also include a sensor and a limiting structure. The posture of the blank 2 can be obtained by the sensor, and the limiting structure can be used to block a partial area of ​​the blank 2, and the angle of the blank 2 can be adjusted in cooperation with the conveyor belt 11.

[0076] like Figure 1 and Figure 3As shown, according to a preferred embodiment of the present invention, the folding processing equipment 1 further includes a feeding module 16, wherein the feeding module 16 is arranged upstream of the moving direction of the conveyor belt 11, for example, the feeding module 16 is close to the starting end of the conveyor belt 11, the blanks 2 are stored in the feeding module 16, and the blanks 2 located at the bottom of the feeding module 16 are attached to the conveyor belt 11. For example, the feeding module 16 includes a storage bin 161, and the blanks 2 are stacked in the storage bin 161. Preferably, the storage bin 161 is provided with side walls or limiting structures in the circumference, which are attached to the sides of the stacked blanks 2, so that the blanks 2 can be aligned in the storage bin 161. The storage bin 161 has a discharge port at the bottom, and the blanks 2 can be separated from the storage bin 161 at the position of the discharge port at the bottom of the storage bin 161. The blank 2 at the bottom is attached to the conveyor belt 11 and can move with the conveyor belt 11. After the blank 2 at the bottom moves along the conveyor belt 11, the blank 2 moves downward under the action of gravity or the feeding module 16, so that another blank 2 moves to the bottom of the feeding module 16 and is attached to the conveyor belt 11.

[0077] Further, such as Figure 3 As shown, according to a preferred embodiment of the present invention, the feeding module 16 also includes a baffle 162, which is located above the conveyor belt 11, and the distance between the lower edge of the baffle 162 and the conveyor belt 11 is greater than the thickness of the blank 2 and less than twice the thickness of the blank 2. The baffle 162 enables the blanks 2 to move along the conveyor belt 11 in sequence, preventing two or more blanks 2 from being stacked and moving with the conveyor belt 11, thereby affecting the subsequent production process. The position of the baffle 162 can be fixed, or can be set to be adjustable by manual or mechanical drive, so that the folding processing equipment 1 can be suitable for blanks 2 of different thicknesses, thereby improving the scope of application of the folding processing equipment 1.

[0078] Figure 4 The structure of the molding module 14 in the preferred embodiment of the present invention is shown below. Figure 4 The molding mold 14 will be described.

[0079] In a preferred embodiment of the present invention, the forming module 14 includes a forming mold 141 , a pressing portion 142 and a folding portion 143 .

[0080] The forming die 141 is close to the end of the moving direction of the conveyor belt 11, and the blank 2 moving along the conveyor belt 11 can move to the forming die 141, for example, the forming die 141 and the conveyor belt 11 are close to or overlap the connecting plate. The forming die 141 is provided with a limit block 1411 in the circumference, and the limit block 1411 is set according to the preset trace of the blank 2, for example Figure 5As shown, the blank 2 in this embodiment has folding pieces 21 in four directions and a main body piece 22 located in the center. The folding pieces 21 in four directions need to be folded inward and pasted on the main body piece 22 to form a rectangular flat plate shape. The connection positions between the folding pieces 21 in four directions and the main body piece 22 are preset marks that need to be folded. The preset marks can be pre-processed on the blank 2, or they can be directly processed using the forming module 14 without forming folds. The shaded area on the main body piece 22 can be a preset range for adding glue. In a specific embodiment of the present invention, the limit block 1411 is, for example, a wedge-shaped block, which is distributed in the circumferential direction according to the position of the preset mark. The oblique edge of the wedge-shaped block can guide the bending direction and prevent the blank 2 from bending at a position other than the preset mark, thereby affecting the product quality. In other embodiments, the limit block 1411 can also be set as a vertical surface. For example, in an embodiment in which an indentation line is processed at the position of a preset mark on the blank 2, the limit block 1411 can be set as a vertical surface so that the blank 2 is more likely to bend at the position of the indentation line when under pressure, and the risk of bending at other positions is reduced.

[0081] The pressing portion 142 is disposed above the forming die 141, and the pressing portion 142 is configured to apply pressure to the blank 2 toward the forming die 141, so that the blank 2 is bent at the position of the preset mark. Figure 4 The molding module 14 shown in Figure 5 Taking the blank 2 shown in FIG. 1 as an example, those skilled in the art will appreciate that for blanks to be folded along different preset traces, the forming die 141 can be adjusted, and the folding method can be different from the blank 2 shown in FIG. Figure 4 and Figure 5 The embodiment shown in is similar.

[0082] The pressing portion 142 applies downward pressure, and the blank 2 is moved close to the forming mold 141 under the action of the pressing portion 142. During the downward process of the blank 2, the position of the folding piece 21 is blocked by the limit block 1411, and the main body piece 22 continues to move downward, and a crease is generated between the main body piece 22 and the angle 21, and the folding piece 21 is bent relative to the main body piece 22.

[0083] Furthermore, the bottom of the forming mold 141 has a plane, and the pressing portion 142 presses the main body sheet 22 to fit on the bottom plane of the forming mold 141. The intersection line of the bottom plane of the forming mold 141 and the wedge-shaped stopper 1411 corresponds to the preset mark. The shape of the stopper 1411, such as the inclination angle of the inclined surface, can be set according to the stiffness of the blank 2 and whether an indentation line matching the preset mark is processed.

[0084] Under the cooperation of the forming die 141 and the pressing portion 142, a part of the blank 2 is bent (for example Figure 5The folding piece 21 is bent relative to the main body piece 22), the folding portion 143 is arranged on the side of the forming mold 141, and is arranged to push or press the bent part of the blank 2 (such as the folding piece 21) so that the bent part is folded and pasted to the position where the glue is added in the blank 2.

[0085] Specifically, with the cooperation of the forming mold 141 and the pressing part 142, a partial area in the blank 2 is bent, and the bending angle is close to the inclination angle of the limit block 1411. The folding part 143 can make the bent part continue to fold so that it can be pasted to the position where the glue is added in the blank 2.

[0086] by Figure 5 Taking the blank 2 shown in the figure as an example, glue is added to the main sheet 22 (in other embodiments, glue can also be added at the position of the folding sheet 21), the folding sheets 21 in four directions need to be folded 180° and pasted on the main sheet 22. With the cooperation of the molding mold 141 and the pressing portion 142, the folding sheet 21 is inclined relative to the main sheet 22. In this embodiment, the folding portion 143 is used to apply a lateral pushing force or a top-to-bottom pressure to the position of the folding sheet 21, so that the folding sheet 21 is close to the main sheet 22, and finally it is pasted and fixed to the main sheet 22.

[0087] According to a specific embodiment of the present invention, Figure 4 As shown, a notch or a through hole is provided on the limit block 1411, and the folding portion 143 extends from the position of the notch or the through hole to the interior of the molding mold 141 (the internal space defined by the circumferentially arranged limit blocks 1411), and the folding portion 143 generates an inward pressure on the side of the bent portion, and under the action of the folding portion 143, the bending angle of the bent portion increases until it fits at the position where the adhesive is added.

[0088] Furthermore, a notch or a through hole can be set according to the size of the limit block 1411. For example, when the length of the limit block 1411 is relatively large, the limit blocks 1411 in one direction can be spaced apart with a notch in the middle for the folding portion 143 to extend. For a limit block 1411 with a shorter length, a through hole can be set near the bottom of the limit block 1411 to reduce the impact on the structure of the limit block 1411 and ensure that the limit block 1411 and the blank 2 have a certain contact area.

[0089] In a preferred embodiment of the present invention, the forming die 141 further includes a second fixing device 1412 , which is configured to fix the blank 2 in the forming die 141 and make the blank 2 fit the bottom surface of the forming die 141 .

[0090] When the blank 2 is folded, the pressing part 142 applies pressure to the blank 2, and the structure of the pressing part 142 also affects the further bending of the bent part of the blank 2. Therefore, the pressure of the pressing part 142 on the blank 2 needs to be released during control, and the blank 2 may rebound. For example, the material of the blank 2 itself has a certain elasticity. Under the pressure of the pressing part 142, the blank 2 undergoes a certain elastic deformation. When the pressure of the pressing part 142 is released, part of the blank 2 rebounds, for example, the part that bears the pressure of the pressing part 142 is suspended, which affects the further folding of the blank 2 by the folding part 143. Controlling the synchronous action of the pressing part 142 and the folding part 143 will increase the difficulty of control, and the timing control accuracy of different components is required to be high.

[0091] In this embodiment, the blank 2 is fixed to the bottom surface of the forming mold 141 by using a second fixing device 1412. Specifically, the second fixing device 1412 may include a vacuum adsorption device, such as a suction cup, which can fix the blank 2 when the pressing part 142 presses the blank 2 to the bottom surface of the forming mold 141. After the blank 2 is folded, the second fixing device 1412 can release the blank 2 to facilitate the transportation of the blank 2.

[0092] According to a preferred embodiment of the present invention, the position where the pressing portion 142 presses on the blank 2 and the position where the glue is added in the blank 2 are misaligned to prevent the pressing portion 142 and the blank 2 from sticking together. In the present application, the position where the glue is added on the blank 2 by using the hook module 13 is smaller than the area of ​​the blank 2, that is, there is a position on the blank 2 where no glue is added, and the pressing portion 142 can be arranged to correspond to the position where no glue is added in the blank 2. Preferably, the position where the glue is added on the blank 2 is distributed in stripes, and the position in the pressing portion 142 that is in direct contact with the blank 2 can be provided with a strip-shaped protrusion, and the position where the glue is added is avoided at the groove position between the protrusions. Furthermore, the position of Tianjiao's glue and the position where the pressing portion 142 is in direct contact on the blank 2 are evenly spaced.

[0093] like Figure 1 and Figure 2 As shown, in a preferred embodiment of the present invention, the folding processing equipment 1 also includes a pressure holding module 17, which is arranged downstream of the forming module 14 (downstream of the movement direction of the blank 2), for example, on one side of the forming module 14, and the pressure holding module 17 is configured to be able to press the folded blank 2.

[0094] In some embodiments, the forming module 14 can fold the blank 2, but the adhesive in the folded blank 2 is not completely solidified, and the bent part of the blank 2 may still rebound under the action of structural elasticity. In the present application, the pressure holding module 17 can be used to further press and fix the folded blank 2, thereby improving the yield rate of the final product and reducing the risk of debonding.

[0095] In a specific embodiment, the folding processing equipment 1 also includes a first transfer device (not shown in the figure), which can be used to transfer the blank from the forming module 14 to the pressure holding module 17. For example, the first transfer device includes a robot arm, which obtains the folded blank 2 by clamping or the like, and drives the blank 2 to be transferred to the pressure holding module 17.

[0096] In other embodiments, the pressing portion 142 also includes a gripping device. For example, a clamp or a suction cup is provided on the side of the pressing portion 142 facing the blank 2. The gripping device in the pressing portion 142 can be used to grip the folded blank 2 and transfer the blank 2 to the pressure holding module 17, which is conducive to simplifying the structure.

[0097] like Figure 6 As shown, according to a specific embodiment of the present invention, the pressure-maintaining module 17 includes a flat pressing device 171 and a rolling device 172. In some embodiments, the pressure-maintaining module 17 may also include any one of the flat pressing device 171 and the rolling device 172. The flat pressing device 171 can apply a plane pressure to the folded blank 2. For example, the flat pressing device 171 includes a pressure plate with a flat surface, which is controlled to press on the folded blank 2. For example, it can apply a positive pressure perpendicular to the blank 2 to the folded blank 2 and maintain it for a preset time, such as 3-5 seconds. Preferably, the pressure plate in the flat pressing device 171 is set to be not less than the area of ​​the pressure-bearing surface of the blank 2 after folding, and completely covers the folded blank 2. The flat pressing device 171 has a good pressure-maintaining effect. The preset time can be set according to the specific material of the blank 2, the location of adding glue, product quality requirements, etc. At the same time, the preset time will also affect the production rhythm of the folding processing equipment 1 and other processing equipment on the same production line as the folding processing equipment 1. The way to improve the control accuracy will be described in the subsequent embodiments.

[0098] The rolling device 172 includes at least one pressing roller, preferably two or more pressing rollers facing each other up and down. The folded blank 2 passes through the gap between the pressing rollers and moves as the pressing rollers rotate. The rolling device 172 can simultaneously achieve the functions of pressure maintenance and transfer.

[0099] When the pressure-maintaining module 171 includes both the flat pressing device 171 and the rolling device 172 , the rolling device 172 is disposed downstream of the flat pressing device 171 , that is, the folded blank 2 is flattened by the flat pressing device 171 and then rolled.

[0100] Figure 7 The structure of the first positioning module 12 in some embodiments of the present invention is shown below. Figure 7 The first positioning module 12 will be described.

[0101] like Figure 7 As shown, the first positioning module 12 includes a position sensor 121 and a positioning fixture 122, wherein the position sensor 121 is configured to obtain the position of the blank 2 on the conveyor belt 11, and the position sensor 121 also communicates with the conveyor belt 11, and when the blank 2 moves to the first position along the conveyor belt 11, the conveyor belt 11 can be controlled to stop. In this embodiment, it is not limited to the position sensor 121 controlling the start or stop of the conveyor belt 11. For example, in some embodiments, the folding processing equipment 1 includes a control system (not shown in the figure), and the position sensor 121 can communicate with the control system, and the control system communicates with the conveyor belt 11 at the same time, that is, in some embodiments, the position sensor 121 and the conveyor belt 11 communicate indirectly.

[0102] The position sensor 121 may specifically be an image sensor or a photoelectric sensor, for example, the position sensor 121 includes an industrial camera, which is arranged at a fixed position, and the field of view includes a part of the conveyor belt 11. The image can be continuously acquired, and the image can be processed to identify the position of the blank 2 therein (in some embodiments, the image can also be processed by other devices, such as a control system). When the blank 2 moves to the first position, the conveyor belt 11 can be controlled to stop so that the posture of the blank 2 can be adjusted to a preset posture using the positioning fixture 122.

[0103] In other embodiments, the position sensor 121 can also be a photoelectric sensor. For example, a light emitter and a light receiver corresponding to the position of the light emitter are arranged on the upper and lower sides of the conveyor belt 11, and an optical signal connection is maintained between the light emitter and the light receiver. When the blank 2 moves to the first position, the blank 2 blocks the light, so that the optical signal between the light emitter and the light receiver is disconnected. The signal change of the light receiver can be converted into an electrical signal, and the conveyor belt 11 is controlled to stop through the control system.

[0104] The positioning fixture 122 communicates with the position sensor 121 or with the conveyor belt 11, and can also be set to be controlled by a control system. When the conveyor belt 11 stops, the positioning fixture 122 can adjust the blank 2 to a preset posture. Specifically, the positioning fixture 122 can include limit push rods located on both sides of the conveyor belt 11, and the shape of the limit push rods can be set to match the shape of the blank 2 to further improve the adjustment accuracy. After the conveyor belt 11 stops, the positioning fixture 122 pushes the blank 2 toward the middle position, and the positioning fixtures 122 on both sides of the conveyor belt 11 can limit a range, and the blank 2 can maintain a preset posture within the limited range. After the posture of the blank 2 is adjusted to the preset posture, the conveyor belt 11 is controlled to restart. For example, the position sensor 121 can be used to obtain an image of the blank 2 to determine whether it is adjusted to the preset posture, or after the positioning fixture 122 moves a preset stroke, or starts for a certain period of time, the conveyor belt 11 is controlled to drive again.

[0105] In this embodiment, the position sensor 121 and the positioning fixture 122 are used to adjust the posture of the blank 2, which has a simple structure and low cost.

[0106] According to a preferred embodiment of the present invention, the preset duration for which the flat pressing device 171 in the pressure maintaining module 17 applies positive pressure perpendicular to the folded blank 2 and the duration for which the conveyor belt 11 is controlled to stop when the blank 2 moves to the first position at least partially overlap.

[0107] The process of adjusting the posture of the blank 2 using the position sensor 121 and the positioning fixture 122 requires controlling the conveyor belt 11 to stop, so as to improve the accuracy of adjusting the posture of the blank 2, and also affects the production efficiency of the folding processing equipment 1. In some embodiments, the pressure holding module 17 includes a flat pressing device 171, and the flat pressing device 171 needs to maintain a preset time when holding the folded blank 2. Preferably, by controlling the production rhythm, the preset time of the flat pressing device 171 holding the pressure and the time of the conveyor belt 11 stopping can be at least partially overlapped, which is conducive to improving production efficiency.

[0108] Normally, the conveyor belt 11 stops, and the time duration for controlling the first positioning module 12 to adjust the posture of the blank 2 is less than the preset time duration for the flat pressing device 171 to maintain pressure. In a preferred embodiment, it can be arranged that the time duration for controlling the conveyor belt 11 to stop is completely covered by the preset time duration for the flat pressing device 171 to maintain pressure.

[0109] The method of adjusting the production rhythm may specifically include adjusting the position of the first positioning module 12, the rotation speed and length of the conveyor belt 11, etc., which is not limited in the present invention.

[0110] According to a preferred embodiment of the present invention, Figure 8 As shown, the folding processing equipment 1 further includes a second transfer device 18, which is disposed downstream of the pressure holding module 17 and is configured to transfer the blank 2 output from the pressure holding module 17 to a preset position. In different embodiments of the present invention, the second transfer device 18 may be a conveyor belt, for example, disposed on the side of the output of the rolling device 172, or the second transfer device 18 includes a manipulator or a suction cup, etc., which can clamp or suck the blank 2 and transfer it.

[0111] In some embodiments, the second transfer device 18 can be configured to adjust the blank 2, for example Figure 8 As described in the above, in the subsequent process, the blank 2 needs to be turned 180°, and the second transfer device 18 can be set as a robot, which is controlled to rotate 180° around the axis after clamping the blank 2. In different embodiments, the second transfer device 18 can be set to different movement modes.

[0112] like Figure 1 and Figure 2 As shown, according to a preferred embodiment of the present invention, the folding processing equipment 1 further includes a second positioning module 19, which is disposed between the scraping module 13 and the forming module 14 and is configured to adjust the blank 2 to which the adhesive is added to a preset posture, so as to prevent the posture of the blank 2 on the conveyor belt 11 from deviating from the preset posture due to the viscosity of the adhesive, thereby affecting the accuracy of the forming process.

[0113] In some embodiments, the second positioning module 19 can be configured to be substantially the same as the first positioning module 12, for example, both use position sensors and positioning fixtures to adjust the posture of the blank 2. Furthermore, when the second positioning module 19 adjusts the posture of the blank 2, the length of time the conveyor belt 11 is stopped is controlled to be substantially aligned with the length of time the conveyor belt 11 is stopped when the first positioning module 12 adjusts the posture of the blank 2, which is beneficial to improving the working efficiency of the folding processing equipment 1.

[0114] The present invention also relates to a folding process control method 100, using the folding process device 1 as described in the above embodiment, Fig. 9 The process of the folding process control method 100 according to some embodiments of the present invention is shown below. Fig. 9 The folding process control method 100 will be described.

[0115] In step S101, blanks are provided and added to a conveyor belt. The blanks may be added to the conveyor belt through a feeding module, or may be added to the conveyor belt in the folding processing equipment from other conveyor belts or production lines, or may be manually operated.

[0116] In step S102, the position of the blank on the conveyor belt is obtained. For example, the position sensor in the aforementioned embodiment can be used to obtain the position of the blank on the conveyor belt. The position sensor can be an image sensor, a photoelectric sensor, or other sensors that can indicate the position of the blank on the conveyor belt.

[0117] In step S103, it is determined whether the blank moves to the first position, wherein the first position can be preset. When the blank moves to the first position, in step S104, the blank is adjusted to a preset posture, wherein the preset posture includes the angle of the blank on the conveyor belt, and further, the preset posture also includes the position of the blank perpendicular to the moving direction of the conveyor belt to prevent the blank from deviating from the scraping module. When the blank does not move to the first position, the process returns to step S102 to continue to obtain the position of the blank on the conveyor belt.

[0118] In step S105, glue is added to a preset range on the blank surface. In this embodiment, the preset range for adding glue to the blank surface is smaller than the area of ​​the blank. Specifically, a glue scraping module in a folding processing device can be used to add glue to the preset range on the blank surface. The glue is preferably hot melt glue.

[0119] In step S106, the blank is folded and the folded portion of the blank is pasted within a preset range. Specifically, the blank can be folded using a forming module in a folding processing device. Preferably, an indentation line or a die-cutting line that meets a preset mark can be pre-processed on the blank to prevent creases from occurring at other positions of the blank when it is folded.

[0120] Finally, it should be noted that the above description is only an embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or replace some of the technical features therein by equivalents. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A folding processing equipment, characterized in that: Used to process the blank, the folding processing equipment comprises: a conveyor belt along which the blank moves; A first positioning module, which is disposed along the conveyor belt and is configured to adjust the blank to a preset posture; a scraping module, the scraping module being arranged along the conveyor belt and being located downstream of the first positioning module in the moving direction of the conveyor belt, the scraping module being configured to add glue in a preset range in the blank, the preset range being smaller than the area of ​​the blank; and A forming module is provided along the conveyor belt, and the forming module is located downstream of the scraping module in the moving direction of the conveyor belt, and is configured to fold and form the blank along a preset trace.

2. The folding processing equipment according to claim 1, characterized in that: The conveyor belt comprises a first fixing device, which is located between the first positioning module and the glue scraping module and is configured to keep the blank in a preset posture and adhere to the surface of the conveyor belt.

3. The folding processing equipment according to claim 1, characterized in that: The invention also comprises a guiding module, which is arranged along the conveyor belt and is located upstream of the first positioning module in the moving direction of the conveyor belt and is configured to adjust the angle of the blank on the conveyor belt.

4. The folding processing equipment according to claim 3, characterized in that: The blank is in the shape of a flat plate, and the guide module comprises a drawing gauge, which is arranged on the conveyor belt and applies a pressure perpendicular to the conveyor belt to the blank.

5. The folding processing equipment according to claim 3, characterized in that: It also includes a feeding module, which is arranged upstream of the moving direction of the conveyor belt. The blanks are stored in the feeding module, and the blanks located at the bottom of the feeding module are attached to the conveyor belt.

6. The folding processing equipment according to claim 5, characterized in that: The feeding module includes a baffle, which is located above the conveyor belt, and the distance between the lower edge of the baffle and the conveyor belt is greater than the thickness of the blank and less than twice the thickness of the blank, so that the blank moves along the conveyor belt in sequence.

7. The folding processing equipment according to claim 1, characterized in that: The molding module comprises: A forming die, the forming die is close to the end of the conveyor belt in the moving direction, a limit block is arranged in the circumference of the forming die, and the limit block is arranged according to the preset trace of the blank; and A pressing portion, the pressing portion is disposed above the forming die and is configured to apply pressure to the blank toward the forming die so that the blank is bent at the position of the preset mark; A folding portion is disposed on a side of the forming mold and is configured to push or press a bent portion of the blank so that the bent portion is folded and adhered to a position where glue is added in the blank.

8. The folding processing equipment according to claim 7, characterized in that: The forming die further comprises a second fixing device, and the second fixing device is configured to fix the blank in the forming die so that the blank is in contact with the bottom surface of the forming die.

9. The folding processing equipment according to claim 7, characterized in that: The position where the pressing portion presses on the blank is misaligned with the position where the adhesive is added into the blank, so as to prevent the pressing portion from adhering to the blank.

10. The folding processing equipment according to claim 7, characterized in that: A notch or a through hole is provided on the limit block, and the folding portion extends from the position of the notch or the through hole to the interior of the forming mold, and is configured to squeeze the side of the bent portion of the blank so that the bent portion of the blank is folded and pasted to the position where glue is added in the blank.

11. The folding processing equipment according to claim 7, characterized in that: It also includes a pressure holding module, which is arranged downstream of the forming module and is configured to press the folded and formed blank.

12. The folding processing equipment according to claim 11, characterized in that: It also includes a first transfer device, wherein the first transfer device is configured to transfer the blank from the forming module to the pressure holding module; or The pressing portion further comprises a grabbing device, which is configured to grab the folded blank and transfer the blank to the pressure holding module.

13. The folding processing equipment according to claim 11, characterized in that: The pressure-maintaining module comprises: a flat pressing device and / or a rolling pressing device; when the pressure-maintaining module comprises a flat pressing device and a rolling pressing device, the rolling pressing device is arranged downstream of the flat pressing device.

14. The folding processing equipment according to claim 13, characterized in that: The pressure-maintaining module comprises a flat-pressing device, which is configured to apply a positive pressure perpendicular to the folded blank and maintain the pressure for a preset time.

15. The folding processing equipment according to claim 14, characterized in that: The first positioning module includes: A position sensor configured to obtain a position of the blank on the conveyor belt, wherein the position sensor communicates with the conveyor belt, and the conveyor belt stops when the blank moves along the conveyor belt to a first position; and A positioning fixture is provided, wherein the positioning fixture communicates with the position sensor or the conveyor belt, and when the conveyor belt stops, the positioning fixture adjusts the blank to the preset posture.

16. The folding processing equipment according to claim 15, characterized in that: The preset time duration during which the flat pressing device applies a positive pressure perpendicular to the folded blank to the blank at least partially coincides with the time duration during which the conveyor belt is stopped.

17. The folding processing equipment according to claim 11, characterized in that: It also includes a second transfer device, which is arranged downstream of the pressure-maintaining module and is configured to transfer the blank output by the pressure-maintaining module to a preset position.

18. The folding processing equipment according to any one of claims 1 to 17, characterized in that: It also includes a second positioning module, which is disposed between the scraping module and the forming module and is configured to adjust the blank to which the adhesive is added to the preset posture.

19. A folding process control method, using the folding process equipment according to any one of claims 1 to 18, characterized in that: include: Providing blanks, and adding the blanks to the conveyor belt; Obtaining the position of the blank on the conveyor belt; When the blank moves to the first position, adjusting the blank to a preset posture; Adding adhesive within a preset range on the surface of the blank; The blank is folded, and the folded portion of the blank is pasted within the preset range.

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