Paper spring pre-folding machine

Abstract

The present invention relates to the technical field of packaging box production equipment, and in particular to a paper spring pre-folding machine, which comprises: a frame, a working panel, a spring pre-folding mechanism, and a lifting and folding assembly; the working panel, the spring pre-folding mechanism, and the lifting and folding assembly are all connected to the frame, the spring pre-folding mechanism is located above the working panel, and the lifting and folding assembly is located below the working panel; the working panel is also provided with a cavity at the position of the lifting and folding assembly, the upper end of the lifting and folding assembly protrudes from the cavity, and the lifting and folding assembly cooperates with the spring pre-folding mechanism. The present invention cooperates the lifting and folding assembly with the spring pre-folding mechanism, and adopts a mold clamping method to realize the pre-folding of the box sleeve. The mold adopts a splicing type to realize the convex and concave shape of the box sleeve, and accurately forms a spring shape, thereby improving the product production yield, saving human resources, and having strong practicality.

Description

Technical Field

[0001] The present invention relates to the technical field of packaging box production equipment, and in particular to a paper spring pre-folding machine. Background Art

[0002] From the manufacturing plant to the final consumption, the goods cannot be separated from packaging. With the development of economy, the requirements for packaging of goods have been raised. The packaging box should not only protect the goods, save costs, facilitate transportation and calculation, but also play the role of beautifying the goods, guiding consumption and increasing added value.

[0003] Most of the packaging supports for heavy-duty products such as computers are made of foam and injection molded products. These products have good mechanical properties and can protect the products well. However, the current trend is to remove plastics from industrial products on a large scale and advocate the use of environmentally friendly materials. Paper, one of the environmentally friendly materials, cannot be die-casted like plastic when it is folded into special shapes. It can only be formed by manual labor, which consumes a lot of manpower and material resources. This makes its large-scale promotion and application costly and cannot meet the demand. Summary of the invention

[0004] The purpose of the present invention is to overcome the deficiencies of the prior art and provide a paper spring pre-folding machine.

[0005] In order to solve the above technical problems, the present invention adopts the following technical solutions:

[0006] A paper spring pre-folding machine comprises: a frame, a working panel, a spring pre-folding mechanism, and a lifting and folding concave assembly; the working panel, the spring pre-folding mechanism, and the lifting and folding concave assembly are all connected to the frame, the spring pre-folding mechanism is located above the working panel, and the lifting and folding concave assembly is located below the working panel; the working panel is also provided with a cavity at the position of the lifting and folding concave assembly, the upper end of the lifting and folding concave assembly protrudes from the cavity, and the lifting and folding concave assembly cooperates with the spring pre-folding mechanism.

[0007] Its further technical solution is: the spring pre-folding mechanism includes a mounting plate connected to both sides of the frame, a support plate connected to the mounting plate, a hydraulic cylinder fixing plate connected to the support plate, a hydraulic cylinder connected to the hydraulic cylinder fixing plate, and a spring pre-folding assembly connected to the telescopic end of the hydraulic cylinder; the spring pre-folding assembly includes a spring pre-folding upper part connected to the telescopic end of the hydraulic cylinder, and a spring pre-folding lower part connected to the mounting plate; the spring pre-folding upper part cooperates with the spring pre-folding lower part.

[0008] Its further technical solution is: the upper part of the spring pre-folding includes a connecting plate connected to the telescopic end of the hydraulic cylinder, and a pre-folding die connected to the connecting plate; the lower part of the spring pre-folding includes a fixing rod connected to the mounting plate, and a pre-folding punch arranged on the fixing rod; the pre-folding die and the pre-folding punch cooperate with each other.

[0009] A further technical solution is as follows: guide columns are provided on both sides of the hydraulic cylinder, and the lower ends of the guide columns pass through the hydraulic cylinder fixing plate and are connected to the connecting plate.

[0010] Its further technical solution is: a plurality of demoulding sheets are also arranged on the connecting plate, the upper ends of the demoulding sheets are connected to the hydraulic cylinder fixing plate, and the lower ends of the demoulding sheets are slidably connected to the upper part of the spring pre-fold.

[0011] A further technical solution is as follows: hydraulic cylinder reinforcement plates are also provided at the front and rear ends of the hydraulic cylinder fixing plate.

[0012] Its further technical solution is: the lifting and folding recess assembly includes a cylinder mounting plate connected to the frame, a lifting and folding recess cylinder connected to the cylinder mounting plate, and a lifting and folding recess part connected to the telescopic end of the lifting and folding recess cylinder; the lifting and folding recess part protrudes from the cavity, and the pre-folded lower part of the spring is located in the lifting and folding recess part.

[0013] A further technical solution is as follows: the lifting and folding concave portion comprises a lifting block connected to the telescopic end of the lifting and folding concave cylinder, and folding concave plates located at the front and rear ends of the lifting block.

[0014] A further technical solution is as follows: the top of the folding plate is provided with an oblique angle from top to bottom.

[0015] A further technical solution is that the working panel is also provided with a plurality of positioning blocks.

[0016] Compared with the prior art, the beneficial effects of the present invention are as follows: the pre-folding of the box sleeve is achieved by cooperating the lifting and folding components with the spring pre-folding mechanism and adopting the mold clamping method. The mold adopts a splicing type to achieve the convex and concave shape of the box sleeve, which is accurately formed into a spring shape, thereby improving the product production yield, saving human resources, and having strong practicality.

[0017] The present invention is further described below in conjunction with the accompanying drawings and specific embodiments. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative labor.

[0019] Figure 1 Schematic diagram of the paper spring pre-folding machine of the present invention Figure 1 ;

[0020] Figure 2 Schematic diagram of the paper spring pre-folding machine of the present invention Figure 2 ;

[0021] Figure 3 Schematic diagram of the paper spring pre-folding machine of the present invention Figure 3 ;

[0022] Figure 4 It is a schematic diagram of the lifting and folding recess component of the present invention;

[0023] Figure 5 It is a schematic diagram of the pre-folding concave mold and the pre-folding convex mold of the present invention. DETAILED DESCRIPTION

[0024] In order to make the purpose, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below in conjunction with the accompanying drawings and specific implementation methods.

[0025] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative work are within the scope of protection of the present invention.

[0026] 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 orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as limiting the present invention.

[0027] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, 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 "plurality" is two or more, unless otherwise clearly and specifically defined.

[0028] In the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be connected, detachably connected, or integrated; it can be mechanically connected or electrically connected; 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.

[0029] 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 indicates 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 indicates that the first feature is lower in level than the second feature.

[0030] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "example", "specific example", or "some examples" etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representation of the above terms should not be understood as necessarily referring to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art may combine and combine the different embodiments or examples described in this specification.

[0031] like Figures 1 to 5 In the specific embodiment shown, the present invention discloses a paper spring pre-folding machine, comprising: a frame 10, a working panel 20, a spring pre-folding mechanism 30, and a lifting and folding recess assembly 40; the working panel 20, the spring pre-folding mechanism 30, and the lifting and folding recess assembly 40 are all connected to the frame 10, the spring pre-folding mechanism 30 is located above the working panel 20, and the lifting and folding recess assembly 40 is located below the working panel 20; the working panel 20 is also provided with a cavity 21 at the position of the lifting and folding recess assembly 40, the upper end of the lifting and folding recess assembly 40 protrudes from the cavity 21, and the lifting and folding recess assembly 40 cooperates with the spring pre-folding mechanism 30.

[0032] Among them, Figures 1 to 3As shown, the spring pre-folding mechanism 30 includes a mounting plate 31 connected to both sides of the frame 10, a support plate 32 connected to the mounting plate 31, a hydraulic cylinder fixing plate 33 connected to the support plate 32, a hydraulic cylinder 34 connected to the hydraulic cylinder fixing plate 33, and a spring pre-folding assembly 35 connected to the telescopic end of the hydraulic cylinder 34; the spring pre-folding assembly 35 includes a spring pre-folding upper part 351 connected to the telescopic end of the hydraulic cylinder 34, and a spring pre-folding lower part 352 connected to the mounting plate 31; the spring pre-folding upper part 351 cooperates with the spring pre-folding lower part 352 to clamp and press the corrugated paper.

[0033] Among them, the spring pre-folding upper part 351 includes a connecting plate 3511 connected to the telescopic end of the hydraulic cylinder 34, and a pre-folding die 3512 connected to the connecting plate 3511; the spring pre-folding lower part 352 includes a fixing rod 3521 connected to the mounting plate 31, and a pre-folding convex mold 3522 arranged on the fixing rod 3521; the pre-folding die 3512 and the pre-folding convex mold 3522 cooperate with each other.

[0034] Among them, Figure 5 As shown, in this embodiment, the angle of the pre-folding die 3512 is 25-30°, and the angle of the pre-folding convex die 3522 is 20-25°. Through the cooperation of the pre-folding die 3512 and the pre-folding convex die 3522, the corrugated paper is clamped into a spring shape to achieve a product bending effect. In other embodiments, the angle between the pre-folding die 3512 and the pre-folding convex die 3522 can also be other values, such as: 15°, 45°, etc., to meet the needs of different products.

[0035] Among them, Figures 1 to 3 As shown, guide columns 36 are further provided on both sides of the hydraulic cylinder 34, and the lower ends of the guide columns 36 pass through the hydraulic cylinder fixing plate 33 and are connected to the connecting plate 3511. The guide columns 36 play a guiding role, so that when the telescopic end of the hydraulic cylinder 34 moves up and down, the spring pre-folded upper part 351 is not easily displaced, thereby improving the production accuracy of the product.

[0036] Among them, Figures 1 to 3 As shown, the connecting plate 3511 is also provided with a plurality of demoulding sheets 37, the upper end of the demoulding sheet 37 is connected to the hydraulic cylinder fixing plate 33, and the lower end of the demoulding sheet 37 is slidably connected to the spring pre-folding upper part 351. When the corrugated paper product is clamped and formed, the telescopic end of the hydraulic cylinder 34 contracts upward, and the demoulding sheet 37 protrudes from the spring pre-folding upper part 351, which assists the corrugated paper product to fall off quickly, thereby improving production efficiency.

[0037] Among them, Figures 1 to 3As shown, the front and rear ends of the hydraulic cylinder fixing plate 33 are also provided with hydraulic cylinder reinforcing plates 38 to provide fixed support for the hydraulic cylinder 34 .

[0038] Among them, Figures 1 to 4 As shown, the lifting and folding assembly 40 includes a cylinder mounting plate 41 connected to the frame 10, a lifting and folding cylinder 42 connected to the cylinder mounting plate 41, and a lifting and folding portion 43 connected to the telescopic end of the lifting and folding cylinder 42; the lifting and folding portion 43 protrudes from the cavity 21, and the spring pre-folding lower portion 352 is located in the lifting and folding portion 43, which saves space and is convenient for the lifting and folding portion 43 to be used for folding the two end edges of the corrugated paper product after clamping to meet the pre-folding requirements.

[0039] Among them, the lifting and folding part 43 includes a lifting block 431 connected to the telescopic end of the lifting and folding cylinder 42, and a folding plate 432 located at the front and rear ends of the lifting block 431. When the corrugated paper product is clamped and pressed into shape, the lifting and folding cylinder 42 works to drive the folding plate 432 to move upward, thereby folding the two end edges of the corrugated paper product.

[0040] Among them, in this embodiment, the top of the folding plate 432 is provided with an oblique angle 4321 from top to bottom, which improves the folding effect and speed.

[0041] Among them, Figures 1 to 3 As shown, the working panel 20 is also provided with a plurality of positioning blocks 22 for positioning the corrugated paper product to improve production accuracy.

[0042] The frame 10 plays the role of protecting, fixing and supporting. Casters and foot cups are also provided at the lower end of the frame 10. The casters facilitate the movement of the machine, and the foot cups play the role of supporting and fixing.

[0043] The application scenarios of the present invention are as follows: the material is placed on the working panel, the hydraulic cylinder is started, and the upper part of the spring pre-fold is pressed down until the pre-folding die and the pre-folding punch are clamped, so that the corrugated paper product is folded into a spring shape, and at the same time, the folding cylinder is started, and the folding plate pushes the side of the corrugated paper product to achieve folding at both ends. After the corrugated paper product is pre-pressed and formed, the hydraulic cylinder contracts, the upper part of the spring pre-fold is pulled up to reset, and the stripping sheet pushes down the corrugated paper product to achieve demolding of the corrugated paper product, and at the same time, the folding cylinder is pulled down to reset.

[0044] The present invention fills the blank of the automatic forming process of paper springs, so that the requirements of packaging products that originally needed to be applied to plastic parts can be replaced by environmentally friendly paper materials, making them fully meet the requirements of environmentally friendly packaging, and also greatly improves production efficiency, enhances the safety of equipment operation, realizes automated production, saves energy, improves the product qualification rate, greatly saves paper consumption, reduces the operating area, improves site utilization, can replace 4-5 people, and saves a lot of human resources.

[0045] The above embodiments are preferred implementation schemes of the present invention. In addition, the present invention may also be implemented in other ways. Any obvious replacement without departing from the concept of the present technical solution is within the protection scope of the present invention.

Claims

1. A paper spring pre-folding machine, characterized in that: include: A frame, a working panel, a spring pre-folding mechanism, and a lifting and folding concave assembly; the working panel, the spring pre-folding mechanism, and the lifting and folding concave assembly are all connected to the frame, the spring pre-folding mechanism is located above the working panel, and the lifting and folding concave assembly is located below the working panel; the working panel is located at the position of the lifting and folding concave assembly and is also provided with a cavity, the upper end of the lifting and folding concave assembly protrudes from the cavity, the lifting and folding concave assembly cooperates with the spring pre-folding mechanism, the spring pre-folding mechanism includes a mounting plate connected to both sides of the frame, a support plate connected to the mounting plate, a hydraulic cylinder fixing plate connected to the support plate, a hydraulic cylinder connected to the hydraulic cylinder fixing plate, and a spring pre-folding assembly connected to the telescopic end of the hydraulic cylinder; the spring pre-folding assembly includes a spring pre-folding upper part connected to the telescopic end of the hydraulic cylinder, and a spring pre-folding lower part connected to the mounting plate; the spring pre-folding upper part cooperates with the spring pre-folding lower part, the spring pre-folding upper part includes a connecting plate connected to the telescopic end of the hydraulic cylinder, and a pre-folding concave mold connected to the connecting plate; the spring pre-folding lower part includes a fixing rod connected to the mounting plate, and a pre-folding convex mold arranged on the fixing rod; the pre-folding concave mold and the pre-folding convex mold cooperate, the lifting and folding concave assembly includes a cylinder mounting plate connected to the frame, a lifting and folding concave cylinder connected to the cylinder mounting plate, and a lifting and folding concave part connected to the telescopic end of the lifting and folding concave cylinder; the lifting and folding concave part protrudes from the cavity, the spring pre-folding lower part is located in the lifting and folding concave part, the lifting and folding concave part includes a lifting block connected to the telescopic end of the lifting and folding concave cylinder, and a folding concave plate located at the front and rear ends of the lifting block.

2. A paper spring pre-folding machine according to claim 1, characterized in that: Guide columns are also provided on both sides of the hydraulic cylinder, and the lower ends of the guide columns pass through the hydraulic cylinder fixing plate and are connected with the connecting plate.

3. A paper spring pre-folding machine according to claim 1, characterized in that: The connecting plate is also provided with a plurality of demoulding sheets, the upper ends of the demoulding sheets are connected to the hydraulic cylinder fixing plate, and the lower ends of the demoulding sheets are slidably connected to the upper part of the spring pre-fold.

4. A paper spring pre-folding machine according to claim 1, characterized in that: The front and rear ends of the hydraulic cylinder fixing plate are also provided with hydraulic cylinder reinforcement plates.

5. The paper spring pre-folding machine according to claim 1, characterized in that: The top of the folding and concave plate is provided with an oblique angle from top to bottom.

6. A paper spring pre-folding machine according to claim 1, characterized in that: The working panel is also provided with a plurality of positioning points.

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