Lifting device and molded pulp fishing forming equipment with same

Abstract

The invention provides a lifting device and molded pulp fishing forming equipment with the lifting device. The lifting device comprises a supporting structure, a lifting mechanism and a lifting mechanism, the driving part is arranged at the top of the supporting structure, the driving part is provided with a cylinder body and a telescopic rod which are oppositely arranged in the vertical direction, one end of the telescopic rod is connected with the supporting structure, and the other end of the telescopic rod can move relative to the cylinder body in the vertical direction so as to drive the cylinder body to be close to or away from the supporting structure; and the moving frame is arranged at the end, close to the telescopic rod, of the cylinder body and used for containing the forming lower die, and the moving frame and the cylinder body move synchronously. By means of the technical scheme, the problem that in the prior art, a cylinder body of a driving piece is kept static and moves through a piston rod, and consequently the adaptability of the device is low can be solved.

Description

Technical Field

[0001] The invention relates to the technical field of pulp molding bailing and forming, and in particular to a lifting device and pulp molding bailing and forming equipment having the same. Background Art

[0002] Pulp molding products are made of pulp as raw material, and are formed into various products through a series of processes such as molding in molds of different shapes and drying. Among them, the molding lower mold is an important part of the pulp molding equipment. When working, the molding lower mold needs to use a lifting device to make it enter the paper trough to dip the pulp, or cooperate with the molding upper mold to form pulp molding products.

[0003] In the prior art, the lifting device of pulp molding equipment usually places the driving member in the lifting frame, wherein the driving member remains stationary, while the piston rod moves to drive the lower molding die to rise and fall. However, this design causes the driving member to occupy part of the length of the lifting frame, which not only reduces the effective utilization of the lifting frame, but also the lifting length of the driving member is limited by the height of the lifting frame. When a long stroke is required, the frame needs to be replaced, which has low adaptability and leads to an increase in the overall cost of the equipment. Summary of the invention

[0004] The present invention provides a lifting device and pulp molding scooping and forming equipment having the same, so as to solve the problem in the prior art that the cylinder body of a driving member remains stationary and moves through a piston rod, resulting in low adaptability of the device.

[0005] According to one aspect of the present invention, a lifting device is provided, which includes: a supporting structure; a driving member, which is arranged on the top of the supporting structure, and the driving member has a cylinder body and a telescopic rod which are arranged relatively to each other in a vertical direction, one end of the telescopic rod is connected to the supporting structure, and the other end of the telescopic rod can move relative to the cylinder body in a vertical direction to drive the cylinder body to approach or move away from the supporting structure; a moving frame, which is arranged at the end of the cylinder body close to the telescopic rod, and the moving frame is used to place the molding lower mold, and the moving frame moves synchronously with the cylinder body.

[0006] Furthermore, the lifting device also includes a guide structure, which extends in a vertical direction and is movably connected to the movable frame, and is used to guide the moving direction of the movable frame.

[0007] Furthermore, the mobile frame includes two first side beams and two first web beams arranged opposite to each other in the horizontal direction, the two first side beams are arranged at intervals along the length direction of the first web beams, the two first web beams are arranged at intervals between the two first side beams, and the cylinder body is arranged between the two first web beams.

[0008] Furthermore, the telescopic rod is hingedly connected to the supporting structure via a connecting piece, and the connecting piece includes: an articulated seat, which is arranged on the supporting structure and is provided with a first through hole; a rotating rod, one end of which is rotatably connected to the articulated seat, and the other end of the rotating rod is threadedly connected to the telescopic rod, and a second through hole is provided at the end of the rotating rod, and the second through hole is arranged corresponding to the first through hole; a pin shaft, the extension direction of the pin shaft is parallel to the extension direction of the first web beam, the pin shaft is penetrated into the first through hole and the second through hole, and the first through hole cooperates with the second through hole through the pin shaft, so that the rotating rod is rotatably connected to the articulated seat.

[0009] Furthermore, the mobile frame also includes a placement frame and multiple connecting rods, the connecting rods extend in the vertical direction, the multiple connecting rods are spaced apart at the ends of the two first side beams, the placement frame is arranged at the end of the connecting rod away from the mobile frame, and the placement frame is used to place the molding lower mold.

[0010] Furthermore, the supporting structure includes a mounting frame, a base and a plurality of supporting beams, wherein the plurality of supporting beams are spaced apart between the base and the mounting frame, the mounting frame is located on the top of the supporting beam and extends in the horizontal direction, the mounting frame includes two second side beams and a plurality of second web beams that are relatively arranged, the two second side beams are spaced apart along the length direction of the first side beam, the plurality of second web beams are spaced apart between the two second side beams, the guiding structure and the connecting member are respectively arranged on the plurality of second web beams, and the supporting beam extends in the vertical direction.

[0011] Furthermore, the guide structure includes multiple bearing assemblies, which are arranged at intervals on the top of the supporting structure, and the connecting rods are passed through the bearing assemblies. The multiple bearing assemblies are arranged one by one with the multiple connecting rods, and the extension direction of the bearing assemblies is the same as the extension direction of the connecting rods.

[0012] Furthermore, the bearing assembly includes a linear bearing and a mounting plate. The linear bearing is fixed to the top of the supporting structure through the mounting plate. The extension direction of the linear bearing is the same as the extension direction of the connecting rod. The linear bearing is sleeved on the outer periphery of the connecting rod and is slidably connected to the connecting rod to guide the movement of the connecting rod. A plurality of bearing assemblies arranged along a group of diagonals of the moving frame are arranged at the top of the mounting frame, and a plurality of bearing assemblies arranged along another group of diagonals of the moving frame are arranged at the bottom of the mounting frame.

[0013] Furthermore, the lifting device also includes a limiter, which is arranged on the top of the supporting structure and below the moving frame, and is used to limit the downward displacement of the moving frame in the vertical direction.

[0014] According to another aspect of the present invention, a pulp molding bailing and forming device is provided, and the pulp molding bailing and forming device comprises any one of the above-mentioned lifting devices.

[0015] By applying the technical solution of the present invention, the driving member is arranged on the top of the supporting structure, and the cylinder body is located outside the mobile frame, so that the cylinder body can avoid occupying the travel space of the mobile frame moving up and down, so that the free travel of the mobile frame in the vertical direction is maximized. Since the moving travel of the telescopic rod is no longer limited by the height of the supporting structure, a longer travel can be designed to adapt to different sizes of forming lower molds or more complex work processes. At the same time, different types of driving members can be selected according to the requirements of the moving travel and specific working conditions, so that the equipment can better cope with various production requirements, improve the flexibility and adaptability of the device, and when the driving member needs to be maintained or replaced, the operation is simpler without disassembling the entire device, thereby improving maintenance efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The drawings constituting a part of the present application are used to provide a further understanding of the present invention. The exemplary embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation of the present invention. In the drawings:

[0017] Figure 1 A schematic structural diagram of a lifting device provided by the present invention is shown;

[0018] Figure 2 A schematic structural diagram of the mounting frame provided by the present invention is shown;

[0019] Figure 3 A schematic structural diagram of a mobile rack provided by the present invention is shown;

[0020] Figure 4 A schematic structural diagram of the position limiting member provided by the present invention is shown.

[0021] The above drawings include the following reference numerals:

[0022] 10. Support structure;

[0023] 11. mounting frame; 111. second side beam; 112. second web beam;

[0024] 12. base; 13. support beam; 14. flange; 15. bump;

[0025] 20. Cylinder body;

[0026] 30. Mobile frame; 31. First side beam; 32. First web beam; 33. Placement frame; 34. Connecting rod;

[0027] 40. Connecting piece; 41. Articulated seat; 42. Rotating rod; 43. Pin shaft;

[0028] 50. bearing assembly; 51. linear bearing; 52. mounting plate;

[0029] 60. Limiting member; 61. Third side beam; 62. Third web beam;

[0030] 70. Cushion. DETAILED DESCRIPTION

[0031] 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, rather than all the embodiments. The following description of at least one exemplary embodiment is actually only illustrative and is by no means intended to limit the present invention and its application or use. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0032] like Figure 1 As shown, an embodiment of the present invention provides a lifting device, which includes: a support structure 10, a driving member and a moving frame 30. The driving member is arranged on the top of the support structure 10, and the driving member has a cylinder body 20 and a telescopic rod arranged opposite to each other in the vertical direction. One end of the telescopic rod is connected to the support structure 10, and the other end of the telescopic rod can move relative to the cylinder body 20 in the vertical direction to drive the cylinder body 20 to approach or move away from the support structure 10. The moving frame 30 is arranged at the end of the cylinder body 20 close to the telescopic rod. The moving frame 30 is used to place the molding lower mold, and the moving frame 30 moves synchronously with the cylinder body 20. The driving member can be an electric cylinder, an oil cylinder or a pneumatic cylinder.

[0033] By applying the technical solution of the present invention, the driving member is arranged on the top of the supporting structure 10, and the cylinder body 20 is located outside the mobile frame 30, so that the cylinder body 20 can be prevented from occupying the travel space of the mobile frame 30 moving up and down, so that the free travel of the mobile frame in the vertical direction is maximized. Since the moving travel of the telescopic rod is no longer limited by the height of the supporting structure 10, a longer travel can be designed to adapt to different sizes of molding lower molds or more complex work processes. At the same time, different types of driving members can be selected according to the requirements of the moving travel and the specific working conditions, so that the device can better cope with various different production requirements, improve the flexibility and adaptability of the device, and when the driving member needs to be maintained or replaced, the operation is simpler, and there is no need to disassemble the entire device, thereby improving the maintenance efficiency.

[0034] Furthermore, the lifting device further includes a guide structure, which extends in the vertical direction and is movably connected to the moving frame 30, and is used to guide the moving direction of the moving frame 30. The setting of the guide structure ensures the linear movement of the moving frame 30 during the lifting process, avoids product defects caused by the deviation of the lower forming die during the movement process, and can improve the operation accuracy of the equipment and the product quality.

[0035] like Figure 2 As shown, the mobile frame 30 includes two first side beams 31 and two first web beams 32 arranged opposite to each other in the horizontal direction, the two first side beams 31 are arranged at intervals along the length direction of the first web beams 32, the two first web beams 32 are arranged at intervals between the two first side beams 31, and the cylinder body 20 is arranged between the two first web beams 32. This I-shaped structure design makes the mobile frame 30 more stable during the lifting process, can effectively bear the weight of the lower forming mold, avoids damage to the mobile frame 30 or production interruption caused by the overweight of the lower forming mold, and improves the stability and safety of the lower forming mold during the lifting process. Among them, the spacing between the two first web beams 32 is large to accommodate the installation of drive parts of various sizes.

[0036] like Figure 1 As shown, specifically, the cylinder body 20 is connected to the two first web beams 32 through the flange 14, the flange 14 is sleeved on the end of the cylinder body 20, and the two first web beams 32 are respectively fixed on the flange 14. The connection through the flange increases the convenience of disassembly and assembly of the first web beam 32 and the cylinder body 20. A protrusion 15 is provided in the middle part below the first web beam 32, and the protrusion 15 is correspondingly provided with the flange 14. The protrusion 15 and the flange 14 are connected by fasteners. The first web beam 32 is connected to the flange 14 through the protrusion 15. The setting of the protrusion 15 facilitates the installation and positioning between the components, and the design of the protrusion 15 can ensure the flatness of the installation contact surface between the components, thereby improving the installation accuracy.

[0037] Preferably, the cylinder 20 is located in the middle of the two first web beams 32. This symmetrical layout helps to evenly distribute the weight and driving force, which can reduce the vibration and imbalance caused by eccentric force, thereby ensuring the stability of the mobile frame 30 during the ascent and descent process and improving the smoothness of the overall operation of the equipment. At the same time, it can also balance the stress state at both ends of the flange 14 to avoid structural damage caused by excessive force on one side.

[0038] like Figure 1 As shown, the telescopic rod is hingedly connected to the support structure 10 via a connector 40. The hinged connection allows the telescopic rod to be adjusted in angle within a certain range, which means that the end of the telescopic rod has a higher flexibility of movement. This increase in freedom can effectively adapt to the slight position deviation or structural deformation that the equipment may encounter during operation, ensuring that the telescopic rod will not be subjected to excessive stress due to the rigid connection during telescopic movement, thereby avoiding premature wear or breakage of the components and reducing the maintenance frequency and cost of the equipment. Even in the case of non-linear motion or slight vibration, the hinge point can act as a buffer to ensure the smooth rise and fall of the mobile frame 30, thereby improving the stability and accuracy of the placement of the molding lower mold.

[0039] like Figure 1As shown, the connecting member 40 includes: an articulated seat 41, a rotating rod 42 and a pin 43. The articulated seat 41 is arranged on the support structure 10, and a first through hole is provided on the articulated seat 41. One end of the rotating rod 42 is rotatably connected to the articulated seat 41, and the other end of the rotating rod 42 is threadedly connected to the telescopic rod. A second through hole is provided on the rotating rod 42, and the second through hole is provided corresponding to the first through hole. The extension direction of the pin 43 is parallel to the extension direction of the first web beam 32, and the pin 43 is penetrated by the first through hole and the second through hole, and the rotating rod 42 is rotatably connected to the articulated seat 41 through the pin 43. The coordinated use of the articulated seat 41, the rotating rod 42 and the pin 43 not only ensures a stable connection between the telescopic rod and the support structure 10, but also has a simple structure, is convenient for processing and disassembly, and improves the convenience of replacing the driving member.

[0040] Specifically, the rotating rod 42 is a fisheye joint.

[0041] like Figure 1 As shown, the mobile frame 30 also includes a placement frame 33 and a plurality of connecting rods 34, the connecting rods 34 extend in the vertical direction, and the plurality of connecting rods 34 are arranged at intervals at the ends of the two first side beams 31, and the placement frame 33 is arranged at the end of the connecting rod 34 away from the mobile frame 30, and the placement frame 33 is used to place the molding lower mold. The design of the placement frame 33 makes the placement of the mold more stable, which can improve the carrying capacity of the mobile frame 30 and the stability of the device. At the same time, the setting of the plurality of connecting rods 34 also reduces the shaking of the placement frame 33 caused by vibration or movement, thereby improving the reliability and production efficiency of the device.

[0042] In the present application, there is no limitation on the number of connecting rods 34 , which can be set according to actual working conditions. In the present embodiment, the mobile frame 30 includes four connecting rods 34 .

[0043] Among them, the end of the first side beam 31 has a through hole, and the end of the connecting rod 34 passes through the through hole of the end of the first side beam 31 and is fixedly connected by a fastener. The through hole and the connecting rod 34 are matched with a small gap to avoid the connecting rod 34 from getting stuck or bending when moving, thereby improving the smoothness of the movement of the connecting rod 34. The plane where the moving frame 30 contacts the fastener is also provided with a bump 15 to increase the contact area and increase the stability of the assembly.

[0044] like Figure 1 and Figure 3As shown, the support structure 10 includes a mounting frame 11, a base 12 and a plurality of support beams 13, the plurality of support beams 13 are arranged at intervals between the base 12 and the mounting frame 11, the mounting frame 11 is located at the top of the support beam 13 and extends in the horizontal direction, the mounting frame 11 includes two second side beams 111 and a plurality of second web beams 112 arranged opposite to each other, the two second side beams 111 are arranged at intervals along the length direction of the first side beam 31, the plurality of second web beams 112 are arranged at intervals between the two second side beams 111, the guide structure and the connecting member 40 are respectively arranged on the plurality of second web beams 112, and the support beam 13 extends in the vertical direction. Through the above arrangement, the guide structure and the connecting member 40 are integrated on the mounting frame 11, the space of the second web beam 112 and the second side beam 111 can be effectively utilized, the need for additional support structures is reduced, and the spatial layout of the entire equipment is optimized, making the equipment design more compact, while simplifying the assembly process of the equipment, avoiding additional assembly parts and complex assembly steps, and making the on-site installation and subsequent maintenance of the equipment more efficient. The arrangement of the plurality of second web beams 112 and second side beams 111 not only increases the structural strength of the mounting frame 11, but also improves the overall stability by dispersing stress, so that the mounting frame 11 can better resist deformation and vibration, ensuring the stable operation of the equipment. The design of the base 12 and the support beam 13 increases the stability of the entire equipment, and the split design of the support structure 10 facilitates installation and disassembly, improving the convenience of processing and transportation.

[0045] In the present application, there is no limitation on the number of the second web beams 112, which can be selected according to the requirements. In the present embodiment, the mounting frame 11 includes three second web beams 112, the middle second web beam 112 is used to install the connecting member 40, and the second web beams 112 located on both sides are used to install the guide structure, which can further improve the stability of the movement of the mobile frame 30.

[0046] Among them, the surfaces where the mounting frame 11 contacts the mounting plate 52, the limit piece 60 and the hinge seat 41 are all provided with protrusions 15, which not only ensure the horizontality of the mounting surface and the stability of the connection between the components, but also facilitate the assembly and positioning between the components, facilitate disassembly and assembly, and improve the installation efficiency.

[0047] like Figure 1As shown, the guide structure includes a plurality of bearing assemblies 50, which are arranged at intervals on the top of the support structure 10, and the connecting rod 34 is penetrated by the bearing assemblies 50. The plurality of bearing assemblies 50 are arranged one by one with the plurality of connecting rods 34, and the extension direction of the bearing assemblies 50 is the same as the extension direction of the connecting rod 34. While guiding the moving direction of the connecting rod 34, the bearing assembly 50 not only improves the smoothness and stability of the moving frame 30 during the lifting process, but also reduces the wear of the equipment when the mold is frequently lifted. Through the precise guidance of the bearing assembly 50, this wear can be effectively reduced, the service life of the device can be extended, and the maintenance cost can be reduced.

[0048] Specifically, the bearing assembly 50 includes a linear bearing 51 and a mounting plate 52. The linear bearing 51 is fixed to the top of the support structure 10 through the mounting plate 52. The extension direction of the linear bearing 51 is the same as the extension direction of the connecting rod 34. The linear bearing 51 is sleeved on the outer periphery of the connecting rod 34 and is slidably connected to the connecting rod 34 to guide the movement of the connecting rod 34. A plurality of bearing assemblies 50 arranged along a group of diagonals of the mobile frame 30 are arranged at the top of the mounting frame 11, and a plurality of bearing assemblies 50 arranged along another group of diagonals of the mobile frame 30 are arranged at the bottom of the mounting frame 11. Through the above design, multiple groups of bearing assemblies 50 can be arranged in a staggered manner in the vertical direction to increase the total guide length of the guide structure, so that the guide support of the mobile frame 30 during the vertical movement is more continuous and stable, reducing the shaking and deviation caused by insufficient guide length, and improving the accuracy and reliability of the equipment. The bearing assembly 50 arranged in the diagonal direction can enhance the stability of the overall guide structure from a structural perspective. The bearing assemblies 50 on the diagonal are installed in the same direction, so that the connecting rods 34 at multiple different positions can receive balanced guiding support when moving. Especially when encountering non-uniform external forces or equipment vibrations, this design can effectively disperse stress, avoid local overload, and ensure the smooth movement of the mobile frame 30 in three-dimensional space.

[0049] Specifically, a through hole is provided on the mounting plate 52 , and the connecting rod 34 is inserted into the through hole, and a small gap is formed between the through hole and the connecting rod 34 to prevent the connecting rod 34 from getting stuck or bending when moving, thereby improving the smoothness of the movement of the connecting rod 34 .

[0050] The lifting device further includes a limiter 60, which is arranged at the top of the support structure 10 and below the mobile frame 30. The limiter 60 is used to limit the downward displacement of the mobile frame 30 in the vertical direction. The setting of the limiter 60 provides a safety line for the lifting device, limits the descending range of the mobile frame 30, avoids equipment damage or personal injury caused by overload or loss of control of the drive member, ensures that the mobile frame 30 operates within a safe range, improves the safety and reliability of the device, and thus improves the safety level of production. At the same time, the limiter 60 can also provide space for the installation of the connector 40 and the disassembly of the drive member, thereby improving the convenience of disassembly and assembly.

[0051] like Figure 4 As shown, the limiting member 60 includes a third web beam 62 and two third side beams 61, the two third side beams 61 are respectively arranged at both ends of the third web beam 62, the extension direction of the third side beam 61 is the same as the extension direction of the first side beam 31, and the extension direction of the third web beam 62 is the same as the moving direction of the mobile frame 30. Among them, the top and bottom of the third side beam 61 are also respectively provided with protrusions 15, and are fixedly connected to the mounting frame 11 through the protrusions 15.

[0052] In the present application, the support structure 10, the movable frame 30 and the limit member 60 are all welded structures of steel profiles, so that the overall structure of the device is relatively high, ensuring stability during operation.

[0053] like Figure 1 As shown, the lifting device further includes a buffer pad 70, which is movably sleeved on the connecting rod 34 and is located below the bearing assembly 50. The buffer pad 70 can abut against the bearing assembly 50 to buffer the movement of the connecting rod 34. The buffer pad 70 can abut against the bearing assembly 50 when the connecting rod 34 moves too fast or out of control, which can not only decelerate the movement of the connecting rod 34, but also prevent the placement frame 33 from directly colliding with the bearing assembly 50, thereby buffering the impact.

[0054] In another embodiment of the present invention, a pulp molding scooping and forming device is provided, and the device includes the lifting device in the above embodiment. The above lifting device can effectively solve the problem that the cylinder of the driving member in the prior art remains stationary and moves through the telescopic rod, resulting in low adaptability of the device. By arranging the cylinder 20 outside the mobile frame 30, the cylinder 20 is driven to move by the telescopic rod, and then the mobile frame 30 is driven to rise and fall, which not only improves the maximum effective moving stroke of the connecting rod 34, but also can adapt to different types of driving members, thereby improving the adaptability of the device. The pulp molding scooping and forming device with the above lifting device also has the above advantages.

[0055] It should be noted that the terms used herein are only for describing specific embodiments and are not intended to limit the exemplary embodiments according to the present application. As used herein, unless the context clearly indicates otherwise, the singular form is also intended to include the plural form. In addition, it should be understood that when the terms "comprise" and / or "include" are used in this specification, it indicates the presence of features, steps, operations, devices, components and / or combinations thereof.

[0056] Unless otherwise specifically stated, the relative arrangement, numerical expressions and numerical values ​​of the parts and steps set forth in these embodiments do not limit the scope of the present invention. Meanwhile, it should be understood that, for ease of description, the sizes of the various parts shown in the accompanying drawings are not drawn according to the actual proportional relationship. The technology, method and equipment known to those of ordinary skill in the relevant art may not be discussed in detail, but in appropriate cases, the technology, method and equipment should be considered as a part of the specification. In all examples shown and discussed here, any specific value should be interpreted as being merely exemplary, rather than as a limitation. Therefore, other examples of exemplary embodiments may have different values. It should be noted that similar reference numerals and letters represent similar items in the following drawings, and therefore, once a certain item is defined in an accompanying drawing, it does not need to be further discussed in subsequent drawings.

[0057] In the description of the present invention, it is necessary to understand that the directions or positional relationships indicated by directional words such as "front, back, up, down, left, right", "lateral, vertical, perpendicular, horizontal" and "top, bottom" are usually based on the directions or positional relationships shown in the drawings. They are only for the convenience of describing the present invention and simplifying the description. Unless otherwise specified, these directional words do not indicate or imply that the devices or elements referred to must have a specific direction or be constructed and operated in a specific direction. Therefore, they cannot be understood as limiting the scope of protection of the present invention. The directional words "inside and outside" refer to the inside and outside relative to the contours of each component itself.

[0058] For ease of description, spatially relative terms such as "above", "above", "on the upper surface of", "above", etc. may be used here to describe the spatial positional relationship between a device or feature and other devices or features as shown in the figure. It should be understood that spatially relative terms are intended to include different orientations of the device in use or operation in addition to the orientation described in the figure. For example, if the device in the accompanying drawings is inverted, the device described as "above other devices or structures" or "above other devices or structures" will be positioned as "below other devices or structures" or "below other devices or structures". Thus, the exemplary term "above" can include both "above" and "below". The device can also be positioned in other different ways (rotated 90 degrees or in other orientations), and the spatially relative descriptions used here are interpreted accordingly.

[0059] In addition, it should be noted that the use of terms such as "first" and "second" to limit components is only for the convenience of distinguishing the corresponding components. If not otherwise stated, the above terms have no special meaning and therefore cannot be understood as limiting the scope of protection of the present invention.

[0060] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. For those skilled in the art, the present invention may have various modifications and variations. 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 lifting device, characterized in that: The lifting device comprises: Support structure (10); a driving member, arranged on the top of the supporting structure (10), comprising a cylinder body (20) and a telescopic rod arranged opposite to each other in a vertical direction, one end of the telescopic rod being connected to the supporting structure (10), and the other end of the telescopic rod being able to move relative to the cylinder body (20) in a vertical direction, so as to drive the cylinder body (20) to move closer to or farther away from the supporting structure (10); A movable frame (30) is arranged at the end of the cylinder body (20) close to the telescopic rod. The movable frame (30) is used to place a molding lower mold. The movable frame (30) moves synchronously with the cylinder body (20).

2. The lifting device according to claim 1, characterized in that: The lifting device further comprises a guide structure, the guide structure extending in a vertical direction, the guide structure being movably connected to the moving frame (30), and the guide structure being used to guide the moving direction of the moving frame (30).

3. The lifting device according to claim 2, characterized in that: The movable frame (30) comprises two first side beams (31) and two first web beams (32) arranged opposite to each other in a horizontal direction, the two first side beams (31) are arranged at intervals along the length direction of the first web beam (32), the two first web beams (32) are arranged at intervals between the two first side beams (31), and the cylinder body (20) is arranged between the two first web beams (32).

4. The lifting device according to claim 3, characterized in that: The telescopic rod is hingedly connected to the supporting structure (10) via a connecting member (40), and the connecting member (40) comprises: A hinge seat (41) is arranged on the supporting structure (10), and a first through hole is arranged on the hinge seat (41); a rotating rod (42), one end of the rotating rod (42) being rotatably connected to the hinge seat (41), the other end of the rotating rod (42) being threadedly connected to the telescopic rod, a second through hole being provided at the end of the rotating rod (42), the second through hole being provided corresponding to the first through hole; A pin shaft (43), the extension direction of the pin shaft (43) is parallel to the extension direction of the first web beam (32), the pin shaft (43) is inserted into the first through hole and the second through hole, and the first through hole cooperates with the second through hole through the pin shaft so that the rotating rod (42) is rotatably connected to the hinge seat (41).

5. The lifting device according to claim 4, characterized in that: The movable frame (30) further comprises a placement frame (33) and a plurality of connecting rods (34), wherein the connecting rods (34) extend in a vertical direction, and the plurality of connecting rods (34) are arranged at intervals at the ends of two first side beams (31), and the placement frame (33) is arranged at the ends of the connecting rods (34) away from the movable frame (30), and the placement frame (33) is used to place the lower molding die.

6. The lifting device according to claim 5, characterized in that: The support structure (10) comprises a mounting frame (11), a base (12) and a plurality of support beams (13); the plurality of support beams (13) are arranged at intervals between the mounting frame (11) and the base (12); the mounting frame (11) is located at the top of the support beam (13) and extends in the horizontal direction; the mounting frame (11) comprises two second side beams (111) and a plurality of second web beams (112) arranged opposite to each other; the two second side beams (111) are arranged at intervals along the length direction of the first side beam (31); the plurality of second web beams (112) are arranged at intervals between the two second side beams (111); the guide structure and the connecting member (40) are respectively arranged on the plurality of second web beams (112); and the support beam (13) extends in the vertical direction.

7. The lifting device according to claim 6, characterized in that: The guide structure comprises a plurality of bearing assemblies (50), wherein the plurality of bearing assemblies (50) are arranged at intervals on the top of the support structure (10), the connecting rod (34) passes through the bearing assemblies (50), the plurality of bearing assemblies (50) are arranged in a one-to-one correspondence with the plurality of connecting rods (34), and the extension direction of the bearing assemblies (50) is the same as the extension direction of the connecting rod (34).

8. The lifting device according to claim 7, characterized in that: The bearing assembly (50) comprises a linear bearing (51) and a mounting plate (52). The linear bearing (51) is fixed to the top of the support structure (10) via the mounting plate (52). The extension direction of the linear bearing (51) is the same as the extension direction of the connecting rod (34). The linear bearing (51) is sleeved on the outer periphery of the connecting rod (34) and is slidably connected to the connecting rod (34) to guide the movement of the connecting rod (34). A plurality of the bearing assemblies (50) arranged along a group of diagonals of the moving frame (30) are arranged at the top of the mounting frame (11), and a plurality of the bearing assemblies (50) arranged along another group of diagonals of the moving frame (30) are arranged at the bottom of the mounting frame (11).

9. The lifting device according to claim 1, characterized in that: The lifting device further comprises a limiting member (60), wherein the limiting member (60) is arranged on the top of the supporting structure (10) and is located below the moving frame (30), and the limiting member (60) is used to limit the amount of downward displacement of the moving frame (30) in the vertical direction.

10. A pulp molding equipment, characterized in that: The pulp molding bailing and forming equipment comprises the lifting device described in any one of claims 1 to 9 above.

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