Degradable paperboard high-strength pre-indentation adjusting mechanism and die cutting equipment

Abstract

The utility model discloses a degradable paperboard high-strength pre-indentation adjusting mechanism and die cutting equipment, and belongs to the technical field of paperboard production. In order to solve the problem of low efficiency caused by separation of cutting and indentation procedures in existing carton processing, the equipment combines the two procedures through integrated design. The pre-creasing adjusting mechanism is composed of a fixing frame, a sliding creasing ring and an adjusting assembly, a threaded component is used for driving a U-shaped frame to drive the creasing ring to ascend and descend, and the operation height can be adjusted to adapt to different paperboard thicknesses. The die cutting equipment integrates a supporting table, an electric push rod and a buffer mechanism, a model ring cutter is elastically connected with a model frame through a compression spring, under driving of the electric push rod, indentation is completed firstly, then die cutting is executed, and automatic demolding after cutting is achieved through the elastic force of the spring. According to the equipment, through the synergistic effect of the indentation ring height adjusting structure and the buffer demolding mechanism, the production process is remarkably shortened, the machining efficiency is improved, and the equipment is suitable for efficient forming machining of degradable paperboards.

Description

Technical Field

[0001] This utility model relates to the field of paperboard production technology, and in particular to a high-strength pre-indentation adjustment mechanism and die-cutting equipment for biodegradable paperboard. Background Technology

[0002] Cardboard boxes are the most widely used packaging products. Depending on the materials used, there are corrugated cardboard boxes, single-layer cardboard boxes, etc. Corrugated cardboard is a multi-layered bonded structure, consisting of at least one layer of corrugated core paper and one layer of cardboard. It possesses a certain mechanical strength and can withstand collisions and drops during handling. Currently, corrugated cardboard is mostly made of biodegradable materials, facilitating recycling and meeting the requirements of resource recycling. Cardboard boxes come in various specifications and models; three-layer and five-layer boxes are commonly used, while seven-layer boxes are less common. The production of cardboard boxes and other similar items requires steps such as cutting and creasing.

[0003] In existing cardboard box processing, the cutting and creasing processes are often separated. The cardboard is first cut by a cutting machine, and then manually transported to a cardboard creasing machine for creasing. This results in low efficiency throughout the entire processing. Therefore, we propose a biodegradable cardboard high-strength pre-creasing adjustment mechanism and die-cutting equipment to solve the above-mentioned problems. Utility Model Content

[0004] The purpose of this invention is to address the shortcomings of existing cardboard box processing, which often separates the cutting and creasing processes. The cardboard is first cut by a cutting machine and then manually transported to a cardboard creasing machine for creasing, resulting in low efficiency throughout the entire processing. This invention proposes a biodegradable cardboard high-strength pre-creasing adjustment mechanism and die-cutting equipment.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] A biodegradable paperboard high-strength pre-indentation adjustment mechanism, comprising:

[0007] A fixing frame, the fixing frame having an indentation ring that slides vertically inside;

[0008] The adjustment assembly includes connecting plates symmetrically fixed to both sides of the indentation ring, a U-shaped bracket connected to the top of the connecting plates, and threaded components;

[0009] The fixed frame has sliding holes on both sides for the connecting plate to pass through, and the U-shaped frame is slidably sleeved on the limiting ring on the outer wall of the fixed frame;

[0010] The threaded component includes a screw vertically fixed in the fixed frame and a threaded cover that is threadedly engaged with the screw. The threaded cover is rotatably mounted on the top of the U-shaped frame. By rotating the threaded cover, the U-shaped frame and the indentation ring are driven to rise and fall, thereby adjusting the working height of the indentation ring.

[0011] A die-cutting apparatus, comprising the aforementioned biodegradable paperboard high-strength pre-crimping adjustment mechanism, and:

[0012] Support platform and support frame, with four electric push rods symmetrically installed on the top of the support frame;

[0013] The model frame is connected to the output shaft of the electric push rod via a buffer mechanism;

[0014] A model ring cutter is slidably sleeved on a model frame and connected to a buffer mechanism, the buffer mechanism comprising:

[0015] The fixing plate is fixedly connected to the model ring cutter;

[0016] The connecting rod is fixed at one end to the fixed plate, and at the other end passes through the limiting plate and is rigidly connected to the output shaft of the electric push rod.

[0017] A limiting plate is fixed to the model frame, and a compression spring is sleeved on the connecting rod. The two ends of the compression spring abut against the flange of the connecting rod and the limiting plate, respectively.

[0018] The initial height of the indentation ring is lower than the bottom surface of the model frame. After the model frame descends and contacts the cardboard, the model ring cutter is driven by the buffer mechanism to continue moving downward to complete the die cutting.

[0019] As a further improvement to the above technical solution:

[0020] The top end of the compression spring is welded to the annular boss of the connecting rod, and the bottom end is welded to the top plane of the limiting plate.

[0021] The limiting rings are symmetrically welded to the outer walls of both sides of the fixed frame, and the two side walls of the U-shaped frame are slidably sleeved on the limiting rings.

[0022] The threaded cover is rotatably mounted in the rotating hole at the top of the U-shaped frame via a bearing, and the top end of the screw extends into the threaded cover and engages with its threads.

[0023] The connecting rod and the output shaft of the electric push rod are rigidly connected by a coupling, and the limiting plate is welded and fixed to the model frame.

[0024] The indentation ring has an inverted trapezoidal cross-section and a cutting edge width of 0.5-2mm.

[0025] In this application, cardboard for making cartons is first placed on a support platform. Then, depending on the cardboard thickness, a threaded cover is driven. Under the threaded transmission of the screw, the threaded cover moves longitudinally, thereby moving the U-shaped frame longitudinally. Simultaneously, under the transmission of the two connecting plates, the creasing ring moves longitudinally to the desired height. Next, four electric push rods are activated, moving the corresponding connecting rods downwards. This moves the model frame downwards until the creasing ring contacts the cardboard. Further downward movement indents the cardboard until the model frame and cardboard are aligned. Once the contact point is reached, it can no longer move downwards. At this point, as the connecting rod moves downwards with the electric push rod, it can drive the model ring cutter downwards, thus cutting the cardboard. When the connecting rod moves downwards with the limiting plate as a reference, the compression spring is under stress. Therefore, after the cardboard is cut, when the model ring cutter is driven upwards, the compressed spring under stress can use its elasticity to push the limiting plate to move in the opposite direction to the connecting rod, thus demolding the cut cardboard. Once the elasticity of the compression spring returns to normal, the limiting plate can pull the model frame upwards to reset, and the cut cardboard can be removed.

[0026] Beneficial effects: In this utility model, the die-cutting equipment, through the buffer mechanism, can drive the corresponding connecting rods downward by activating four electric push rods. At this time, it can drive the model frame and the model ring cutter downward. After the model frame descends to contact the cardboard, it can press the model frame. Then, when the model ring cutter moves downward with the connecting rods, it can die-cut the cardboard.

[0027] In this utility model, the biodegradable paperboard high-strength pre-crimmage adjustment mechanism can adjust the height of the creasing ring by adjusting the threaded component and driving the U-shaped frame to move longitudinally. Therefore, when creasing paperboard, the height of the creasing ring can be adjusted according to the thickness of the paperboard, thereby enabling creasing of paperboards of different thicknesses.

[0028] This invention enables the cardboard to be crimped and die-cut after it is placed on the support platform, thus effectively reducing the production process and improving work efficiency during the production of cartons. Attached Figure Description

[0029] Figure 1 This is a top-view three-dimensional schematic diagram of a biodegradable cardboard high-strength pre-indentation adjustment mechanism and die-cutting equipment proposed in this utility model.

[0030] Figure 2This is a three-dimensional top-view structural diagram of a biodegradable cardboard high-strength pre-indentation adjustment mechanism and die-cutting equipment proposed in this utility model.

[0031] Figure 3 This is a three-dimensional schematic diagram of the model frame, model ring cutter, fixing frame and creasing ring connection structure of a biodegradable cardboard high-strength pre-crimping adjustment mechanism and die-cutting equipment proposed in this utility model;

[0032] Figure 4 This is a three-dimensional schematic diagram of the connection structure of the indentation ring, U-shaped frame and threaded cover of a high-strength pre-indentation adjustment mechanism for biodegradable cardboard proposed in this utility model.

[0033] In the diagram: 1. Support platform; 2. Support frame; 3. Electric push rod; 4. Model frame; 5. Model ring cutter; 6. Fixing plate; 7. Connecting rod; 8. Limiting plate; 9. Compression spring; 10. Fixing frame; 11. Indentation ring; 12. Connecting plate; 13. U-shaped frame; 14. Limiting ring; 15. Mounting plate; 16. Screw; 17. Threaded cover. Detailed Implementation

[0034] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0035] Example 1: Refer to Figure 1-3 A die-cutting device includes a support platform 1 and a support frame 2. The support frame 2 is fixedly installed above the support platform 1. Four electric push rods 3 are symmetrically fixedly installed on the top of the support frame 2. The output shaft of each electric push rod 3 extends into the support frame 2. The output shaft of each electric push rod 3 is connected to a buffer mechanism. A mold frame 4 is connected to the four buffer mechanisms. A mold ring cutter 5 is slidably sleeved on the mold frame 4. The four buffer mechanisms are all connected to the mold ring cutter 5. The mold ring cutter 5 is used to perform die-cutting operations on cardboard.

[0036] The buffer mechanism includes a fixed plate 6, a connecting rod 7, a limiting plate 8, and a compression spring 9. The fixed plate 6 is welded to the model ring cutter 5, the connecting rod 7 is welded to the fixed plate 6, and the limiting plate 8 located above the fixed plate 6 is slidably sleeved on the connecting rod 7. The limiting plate 8 is welded to the model frame 4, and the output shaft of the electric push rod 3 is fixedly connected to the top end of the connecting rod 7 through a coupling.

[0037] The working principle is as follows: When the four electric push rods 3 are activated, the electric push rods 3 drive the corresponding connecting rods 7 to move downwards. The connecting rods 7 drive the fixing plate 6 and the die-cutting blade 5 to move downwards. At the same time, since the limiting plate 8 is welded to the die frame 4, the die frame 4 also moves downwards. When the die frame 4 descends to contact the cardboard, the die frame 4 is pressed onto the cardboard. Then, as the die-cutting blade 5 continues to move downwards with the connecting rods 7, the die-cutting blade 5 can move downwards along the die frame 4, thereby realizing the die-cutting of the cardboard.

[0038] A compression spring 9 is fitted onto the connecting rod 7, positioned above the limiting plate 8. The top and bottom ends of the compression spring 9 are welded to the top of the connecting rod 7 and the limiting plate 8, respectively. The compression spring 9 provides elastic support for the mold frame 4, ensuring relative stability between the mold frame 4 and the mold ring cutter 5. The mold ring cutter 5 only moves downward along the mold frame 4 under the pushing force of the electric push rod 3 when the mold frame 4 is pressing the cardboard, thus performing die-cutting on the cardboard.

[0039] Example 2: Refer to Figure 1-4 An adjustment mechanism, applied within the aforementioned die-cutting equipment, includes a fixed frame 10, an indentation ring 11, a connecting plate 12, and an adjustment assembly. The fixed frame 10 is welded within the mold frame 4. The indentation ring 11 is slidably connected within the fixed frame 10. Connecting plates 12 are welded to both sides of the indentation ring 11. Sliding holes are provided on the inner walls of both sides of the fixed frame 10. One side of the connecting plate 12 passes through the corresponding sliding hole and extends to the outer side of the fixed frame 10. The same adjustment assembly is connected to the top of both connecting plates 12.

[0040] The adjustment assembly includes a U-shaped frame 13, a limiting ring 14, a mounting plate 15, and a threaded component. The U-shaped frame 13 is welded to the top side of each of the two connecting plates 12. Two limiting rings 14 are symmetrically slidably mounted on the U-shaped frame 13. The two limiting rings 14 are welded to both sides of the fixed frame 10. The mounting plate 15 is welded inside the fixed frame 10. A threaded component is connected to the top of the mounting plate 15. The threaded component passes through the U-shaped frame 13 and is connected to the top of the U-shaped frame 13.

[0041] By operating the threaded component, the U-shaped frame 13 can be moved longitudinally. The U-shaped frame 13 moves the connecting plate 12, and the connecting plate 12 causes the creasing ring 11 to slide within the fixed frame 10, thereby adjusting the height of the creasing ring 11. Therefore, when creasing cardboard, the height of the creasing ring 11 can be adjusted according to the thickness of the cardboard, thus enabling creasing of cardboard of different thicknesses.

[0042] This application can be used in the field of paperboard production technology, or in other fields applicable to this application.

[0043] Example 3: Reference Figure 3-4 An improvement based on Embodiment 1: A biodegradable cardboard high-strength pre-indentation adjustment mechanism, which is applied to the field of cardboard production technology. The threaded component includes a screw 16 and a threaded cover 17. The screw 16 is welded to the top of the mounting plate 15. A rotating hole is opened on the inner wall of the top of the U-shaped frame 13. The threaded cover 17 is rotatably connected in the rotating hole. The top of the threaded cover 17 extends to the top of the U-shaped frame 13. The top of the screw 16 extends into the threaded cover 17. The screw 16 and the threaded cover 17 are threadedly connected.

[0044] By rotating the threaded cover 17, under the threaded transmission action with the screw 16, the threaded cover 17 can be driven to move longitudinally. Since the threaded cover 17 is connected to the U-shaped frame 13, it can drive the U-shaped frame 13 to move longitudinally, thereby adjusting the height position of the indentation ring 11.

[0045] However, as is well known to those skilled in the art, the working principle and wiring method of the electric actuator 3 are commonplace and are all conventional means or common knowledge, so they will not be described in detail here. Those skilled in the art can make any selections according to their needs or convenience.

[0046] The accompanying drawings in this application are for illustrative purposes only. The dimensions and shapes of the components shown are not actual limitations but are merely schematic representations. In actual implementation, the components can be reasonably configured and adjusted according to specific needs and actual conditions.

[0047] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A degradable paperboard high strength pre-score adjustment mechanism, characterized by, include: A fixing frame (10) is provided inside the fixing frame (10) with an indentation ring (11) that slides in the vertical direction; The adjustment assembly includes connecting plates (12) symmetrically fixed on both sides of the indentation ring (11), a U-shaped frame (13) connected to the top of the connecting plates (12), and a threaded component; The fixed frame (10) has sliding holes on both sides for the connecting plate (12) to pass through, and the U-shaped frame (13) is slidably sleeved on the limiting ring (14) on the outer wall of the fixed frame (10); The threaded component includes a screw (16) vertically fixed in the fixed frame (10) and a threaded cover (17) threadedly engaged with the screw (16). The threaded cover (17) is rotatably mounted on the top of the U-shaped frame (13). By rotating the threaded cover (17), the U-shaped frame (13) and the indentation ring (11) are driven to rise and fall, so as to adjust the working height of the indentation ring (11).

2. A die cutting apparatus characterized by, Including the biodegradable paperboard high-strength pre-indentation adjustment mechanism as described in claim 1, and: Support platform (1) and support frame (2), with four electric push rods (3) symmetrically installed on the top of the support frame (2); The model frame (4) is connected to the output shaft of the electric push rod (3) through a buffer mechanism; A model ring cutter (5) is slidably sleeved on the model frame (4) and connected to a buffer mechanism, the buffer mechanism comprising: A fixing plate (6) is fixedly connected to the model ring cutter (5); The connecting rod (7) is fixed at one end to the fixing plate (6) and the other end passes through the limiting plate (8) and is rigidly connected to the output shaft of the electric push rod (3); A limiting plate (8) is fixed to the model frame (4), and a compression spring (9) is sleeved on the connecting rod (7). The two ends of the compression spring (9) abut against the flange of the connecting rod (7) and the limiting plate (8) respectively. The initial height of the indentation ring (11) is lower than the bottom surface of the model frame (4). After the model frame (4) descends and contacts the cardboard, the model ring cutter (5) is driven by the buffer mechanism to continue to move down to complete the die cutting.

3. The die cutting apparatus of claim 2, wherein, The top end of the compression spring (9) is welded to the annular boss of the connecting rod (7), and the bottom end is welded to the top plane of the limiting plate (8).

4. The die cutting apparatus of claim 2, wherein, The limiting ring (14) is symmetrically welded to the outer walls of both sides of the fixed frame (10), and the two side walls of the U-shaped frame (13) are slidably sleeved on the limiting ring (14).

5. The die cutting apparatus of claim 2, wherein, The threaded cover (17) is rotatably mounted in the rotating hole at the top of the U-shaped frame (13) via a bearing, and the top end of the screw (16) extends into the threaded cover (17) and engages with its threads.

6. The die-cutting equipment according to claim 2, characterized in that, The connecting rod (7) is rigidly connected to the output shaft of the electric push rod (3) through a coupling, and the limiting plate (8) is welded and fixed to the model frame (4).

7. The die-cutting equipment according to claim 2, characterized in that, The cross-section of the indentation ring (11) is an inverted trapezoidal structure, and its cutting edge width is 0.5-2mm.

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