Damping device for heaven and earth cover forming machine

Abstract

The utility model discloses a damping device for a heaven and earth cover forming machine, and relates to the technical field of heaven and earth cover forming machines. The top and bottom cover forming machine comprises a top and bottom cover forming machine frame, a supporting frame is arranged on the top and bottom cover forming machine frame, an electric telescopic rod is arranged on the supporting frame, the telescopic end of the electric telescopic rod is connected with a stamping block, a controller is arranged on the supporting frame, a top plate and a bottom plate are arranged on the top and bottom cover forming machine frame, and a stamping die is arranged at the top end of the top plate. The designed three-stage damping structure achieves the excellent damping effect through the synergistic effect. The first-stage annular air bag utilizes compressed air to conduct flexible buffering, and initial impact is absorbed. Precise hard limiting protection is formed by the second-stage supporting seat and the multiple layers of composite shock pads, and the punch forming quality is ensured; and the third-stage damping rods distributed in the circumferential direction are matched with the reset springs, residual vibration is effectively attenuated, rapid reset is achieved, the progressive damping design enables the overall damping efficiency to be remarkably improved, and the equipment vibration amplitude is greatly reduced.

Description

Technical Field

[0001] This utility model relates to the technical field of top and bottom cover forming machines, specifically to a shock absorption device for top and bottom cover forming machines. Background Technology

[0002] In the field of carton packaging machinery, the stamping process of top and bottom box forming machines generates strong impact vibrations. Traditional shock absorption devices mostly use a single spring or rubber pad for shock absorption, which has problems such as limited shock absorption effect and short service life. Especially under high-speed continuous stamping conditions, existing shock absorption structures often experience a decline in shock absorption performance and untimely reset, resulting in poor equipment stability and reduced forming accuracy. At the same time, the lack of a multi-level coordinated shock absorption mechanism makes it difficult to effectively absorb and disperse impact energy of different frequencies.

[0003] Therefore, a shock absorption device for a top and bottom cover forming machine is proposed. Utility Model Content

[0004] To address the problems existing in the prior art, this utility model provides a shock-absorbing device for a top and bottom cover forming machine.

[0005] To achieve the above objectives, this utility model specifically adopts the following technical solution:

[0006] A shock-absorbing device for a top and bottom cover forming machine includes a machine frame, a support frame on the machine frame, an electric telescopic rod on the support frame, a stamping block connected to the telescopic end of the electric telescopic rod, a controller on the support frame, a top plate and a bottom plate on the machine frame, a stamping die on the top of the top plate, and a three-stage shock-absorbing assembly between the top plate and the bottom plate, the three-stage shock-absorbing assembly including a first-stage shock absorption, a second-stage shock absorption, and a third-stage shock absorption.

[0007] Furthermore, the first-stage shock absorber includes an annular airbag, which is fixedly connected to the top plate and the bottom plate respectively via upper and lower connecting plates, and is filled with compressed gas.

[0008] Furthermore, the second-stage shock absorption includes a support seat disposed at the center of the base plate, and a shock-absorbing pad disposed on the top of the support seat, the shock-absorbing pad maintaining a preset gap with the lower surface of the top plate.

[0009] Furthermore, the third-stage damping includes multiple damping rods circumferentially distributed around the support base, each damping rod being fitted with a return spring, and the top plate being connected to the top of the damping rod.

[0010] Furthermore, the airbag adopts a multi-layer composite structure, including an aramid fiber reinforcing layer, a butyl rubber sealing layer, and a polyurethane wear-resistant outer layer arranged sequentially from the inside to the outside.

[0011] Furthermore, the shock-absorbing pad has a multi-layer composite structure, including a silicone layer, a steel plate, and a polyurethane layer.

[0012] The beneficial effects of this utility model are as follows:

[0013] The three-stage damping structure designed in this utility model achieves excellent damping effect through synergistic action: the first-stage annular airbag uses compressed gas for flexible buffering to absorb the initial impact; the second-stage support base and multi-layer composite damping pads form precise hard limit protection to ensure stamping quality; the third-stage circumferentially distributed damping rods, in conjunction with the return spring, effectively attenuate residual vibration and achieve rapid reset. This progressive damping design significantly improves the overall damping efficiency and reduces the vibration amplitude of the equipment. Attached Figure Description

[0014] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0015] Figure 2 This is a sectional view of the present invention;

[0016] Figure 3 This is a cross-sectional view of the airbag of this utility model;

[0017] Figure 4 This is a schematic diagram of the three-stage shock absorption component of this utility model.

[0018] Reference numerals in the attached diagram: 1. Frame of the top and bottom cover forming machine; 2. Support frame; 3. Electric telescopic rod; 4. Stamping block; 5. Controller; 6. Stamping die; 7. Top plate; 8. Bottom plate; 9. First-stage shock absorber; 901. Airbag; 902. Connecting plate; 10. Second-stage shock absorber; 1001. Support seat; 1002. Shock-absorbing pad; 11. Third-stage shock absorber; 1101. Damping rod; 1102. Spring. Detailed Implementation

[0019] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. The components of the embodiments of this utility model described and shown in the accompanying drawings can generally be arranged and designed in various different configurations.

[0020] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely to illustrate selected embodiments of the invention. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without inventive effort are within the scope of protection of the present invention.

[0021] It should be noted that similar reference numerals and letters in the following figures indicate similar items; therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures. Furthermore, the terms "first," "second," etc., are used only to distinguish descriptions and should not be construed as indicating or implying relative importance.

[0022] In the description of the embodiments of this utility model, it should be noted that the terms "inner", "outer", "upper", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, or the orientation or positional relationship in which the utility model product is usually placed when in use. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0023] like Figure 1-4 As shown, a shock-absorbing device for a top and bottom cover forming machine includes a machine frame 1, a support frame 2 on the machine frame 1, an electric telescopic rod 3 on the support frame 2, a stamping block 4 connected to the telescopic end of the electric telescopic rod 3, a controller 5 on the support frame 2, a top plate 7 and a bottom plate 8 on the machine frame 1, a stamping die 6 on the top of the top plate 7, and a T-slot mounting structure or positioning pin hole on the upper surface of the top plate 7 for fixing the stamping die 6, facilitating its disassembly and assembly, and enabling stamping processing of cartons of different sizes. A three-stage shock-absorbing assembly is provided between the top plate 7 and the bottom plate 8. The bottom plate 8 is provided with support seat mounting holes, damping rod mounting holes and anchor bolt holes for limiting the installation of the three-stage shock-absorbing assembly and the bottom plate 8. The three-stage shock-absorbing assembly includes a first-stage shock absorber 9, a second-stage shock absorber 10 and a third-stage shock absorber 11.

[0024] like Figure 1-4 As shown, the first-stage shock absorber 9 includes an annular airbag 901. The airbag 901 is fixedly connected to the top plate 7 and the bottom plate 8 respectively through upper and lower connecting plates 902. The airbag 901 is filled with compressed gas. Specifically, the upper and lower connecting plates 902 can be connected to the top plate 7 and the bottom plate 8 by screws. A sealing ring is provided at the connection to increase its sealing performance. An inflation port can be provided at a suitable position on the airbag 901 to facilitate the inflation and deflation of the airbag 901.

[0025] like Figure 2 and 4As shown, the second-stage shock absorber 10 includes a support seat 1001 located at the center of the base plate 8. A shock absorber pad 1002 is provided on the top of the support seat 1001. The shock absorber pad 1002 maintains a preset gap with the lower surface of the top plate 7. Specifically, when the stamping force exceeds the rated value, the top plate 2 contacts the shock absorber pad 6 to form a hard limit, thereby realizing the stamping and forming of the cardboard. This design can prevent excessive stamping force from damaging the equipment and ensure the cardboard forming quality. To ensure the reliability of the hard limit, the material hardness and thickness of the shock absorber pad 1002 should be reasonably selected and designed according to the actual stamping force. The size of the preset gap should be accurately calculated according to the stamping process requirements and the compression characteristics of the shock absorber pad. The gap can be accurately adjusted by installing an adjustable limit screw between the lower surface of the top plate 7 and the shock absorber pad 1002, which is convenient for flexible setting according to different cardboard thicknesses and stamping processes.

[0026] like Figure 2 and 4 As shown, the third-stage damping 11 includes multiple damping rods 1101 circumferentially distributed around the support base 1001. Each damping rod 1101 is fitted with a return spring 1102. The top plate 7 is connected to the top of the damping rod 1101. Specifically, during the stamping process, the damping rods 1101 provide damping force to slow down the descent speed of the top plate 7 and reduce the impact force. The return springs 1102 provide return force to the top plate 7 after stamping, enabling it to quickly return to its initial position. To optimize the damping effect, the appropriate damping coefficient of the damping rods and the stiffness of the return springs should be selected according to the stamping speed and the magnitude of the stamping force. The multiple damping rods 1101 are circumferentially distributed around the support base 1001. This layout allows the damping force to be evenly distributed around the top plate 7, improving the damping stability.

[0027] like Figure 3-4 As shown, the airbag 901 adopts a multi-layer composite structure, including an aramid fiber reinforcing layer, a butyl rubber sealing layer, and a polyurethane wear-resistant outer layer arranged sequentially from the inside to the outside. Specifically, the multi-layer composite structure can be bonded or connected by hot pressing or other methods, which is not limited here, and can improve its service life.

[0028] like Figure 2 and 4 As shown, the shock-absorbing pad 1002 has a multi-layer composite structure, including a silicone layer, a steel plate, and a polyurethane layer. Specifically, the multi-layer composite structure can be bonded or connected by hot pressing or other methods, which is not limited here, and can improve its service life.

[0029] In summary: When the electric telescopic rod 3 drives the stamping block 4 to press down, the stamping force is transmitted to the top plate 7 through the stamping die 6. First, the annular airbag 901 of the first-stage shock absorber 9 absorbs most of the impact energy through compression deformation; at the same time, the multiple circumferentially distributed damping rods 1101 of the third-stage shock absorber 11 slow down the movement speed through hydraulic damping, and the outer return spring 1102 stores energy and helps to reset during the return stroke; subsequently, the support seat 1001 and the shock-absorbing pad 1002 of the second-stage shock absorber 10 form a hard limit after the top plate 7 is pressed down to the preset gap. The three-stage shock absorbers work together to ensure a smooth stamping process, effectively protect the equipment and ensure the quality of cardboard forming.

[0030] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A shock-absorbing device for a top and bottom cover forming machine, characterized in that: The machine includes a frame (1) for forming a top and bottom cover, a support frame (2) on the frame (1), an electric telescopic rod (3) on the support frame (2), a stamping block (4) connected to the telescopic end of the electric telescopic rod (3), a controller (5) on the support frame (2), a top plate (7) and a bottom plate (8) on the frame (1), a stamping die (6) on the top plate (7), and a three-stage shock absorption assembly between the top plate (7) and the bottom plate (8). The three-stage shock absorption assembly includes a first-stage shock absorption (9), a second-stage shock absorption (10) and a third-stage shock absorption (11).

2. The shock absorption device for a top and bottom cover forming machine according to claim 1, characterized in that, The first-stage shock absorber (9) includes an annular airbag (901), which is fixedly connected to the top plate (7) and the bottom plate (8) respectively through upper and lower connecting plates (902), and is filled with compressed gas.

3. The shock absorption device for a top and bottom cover forming machine according to claim 1, characterized in that, The second-stage shock absorber (10) includes a support base (1001) located at the center of the base plate (8), and a shock absorber pad (1002) is provided on the top of the support base (1001). The shock absorber pad (1002) maintains a preset gap with the lower surface of the top plate (7).

4. The shock absorption device for a top and bottom cover forming machine according to claim 1, characterized in that, The third-stage damping (11) includes multiple damping rods (1101) arranged circumferentially around the support base (1001), each damping rod (1101) is fitted with a return spring (1102), and the top plate (7) is connected to the top of the damping rod (1101).

5. A shock-absorbing device for a top and bottom cover forming machine according to claim 2, characterized in that, The airbag (901) adopts a multi-layer composite structure, including an aramid fiber reinforcing layer, a butyl rubber sealing layer and a polyurethane wear-resistant outer layer arranged sequentially from the inside to the outside.

6. A shock-absorbing device for a top and bottom cover forming machine according to claim 3, characterized in that, The shock-absorbing pad (1002) has a multi-layer composite structure, including a silicone layer, a steel plate, and a polyurethane layer.

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