Two-stage lifting mechanism and miniaturized packaging box forming machine

Abstract

The utility model provides a two-stage lifting mechanism which comprises a frame part, a first-stage sliding rail part, a second-stage sliding rail part, a chain part and a driving part, the second-stage sliding rail part is slidably connected to the frame part in the vertical direction, the first-stage sliding rail part is slidably connected to the second-stage sliding rail part in the vertical direction, one end of the chain part is connected to the first-stage sliding rail part, and the other end of the chain part is connected to the second-stage sliding rail part. The other end of the chain piece extends in the direction away from the side face of the frame piece, and the driving end of the driving piece is connected with the chain piece and drives one end of the chain piece to ascend and descend in a reciprocating mode. In the initial state, the first-stage sliding rail piece and the second-stage sliding rail piece are both contained in the frame body piece. The utility model further provides a small packaging box forming machine. Through the arrangement of the first-stage sliding rail part and the second-stage sliding rail part, two-stage lifting can be achieved, the lifting height is increased, meanwhile, in the initial state, the first-stage sliding rail part and the second-stage sliding rail part can be stored in the frame body part, the overall height of the second-stage lifting mechanism in the initial state is reduced, and miniaturization is achieved.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of packaging box forming machine, specifically, a two-stage lifting mechanism and miniaturized packaging box forming machine. BACKGROUND

[0002] The packaging box forming machine is an automatic production equipment, which is mainly used for producing various types of packaging boxes or packaging covers, including food packaging, gift boxes, wine packaging, medical boxes and boxes in different fields. The existing packaging box is pasted with outer packaging paper on four edges to play a decorative and protective role of the packaging box. The packaging box forming machine is used for accurately folding, indenting and bonding the outer packaging paper and pasting it on the outer surface of the packaging box semi-finished product, and finally forming a complete packaging box or packaging cover.

[0003] The existing packaging box forming machine mostly includes a lower pressing head module, a lifting support mechanism and multiple edge folding mechanisms. When forming the packaging box, the following steps are needed: first, place the packaging box semi-finished product in the forming station, then lower the packaging box semi-finished product to the lifting support mechanism by the lower pressing head module, and then lower it through the multiple edge folding mechanisms in sequence. The multiple edge folding mechanisms fold the outer packaging paper on the four edges of the packaging box semi-finished product. However, the multiple edge folding mechanisms cannot fold the outer packaging paper on the packaging box semi-finished product at one time, which requires the lower pressing head module and the lifting support mechanism to cooperate to make the packaging box semi-finished product stay at different heights to complete multiple edge folding operations. This requires the lifting support mechanism to have a large lifting stroke, which can not only lift the packaging box semi-finished product to a high enough height, but also have a sufficient descending stroke distance to cooperate with the multiple edge folding mechanisms to complete multiple edge folding operations. However, the existing lifting support mechanism mostly uses traditional air cylinders or electric cylinders, which have limited lifting height. If the lifting height is to be increased, the overall height or volume of the lifting support mechanism must be increased, which inevitably leads to an increase in the volume of the packaging box forming machine and the occupation of a large amount of factory space. UTILITY MODEL CONTENTS

[0004] In view of the deficiencies of the prior art, the present application provides a two-stage lifting mechanism and a miniaturized packaging box forming machine.

[0005] The two-stage lifting mechanism disclosed in the present application comprises a frame body, a first sliding rail, a second sliding rail, a chain condition and a driving member. The second sliding rail is slidably connected to the frame body in the vertical direction, the first sliding rail is slidably connected to the second sliding rail in the vertical direction, one end of the chain condition is connected to the first sliding rail, the other end of the chain condition extends away from the side of the frame body, the driving end of the driving member is connected to the chain condition and drives one end of the chain condition to reciprocatingly lift and lower, and the first sliding rail and the second sliding rail are accommodated in the frame body in the initial state.

[0006] Preferably, the chain condition comprises a chain, a sprocket and a guide frame, the sprocket is connected with the driving end of the driving member, the chain is engaged with the sprocket, one end of the chain is connected with the primary slide rail member, the other end of the chain extends away from the side of the frame member, the guide frame is arranged on the frame member, the chain is slidingly arranged on the guide frame, and the guide frame guides the movement of the chain, so that one end of the chain vertically reciprocates and rises and falls.

[0007] Preferably, the number of chain conditions is two, the two guide frames are arranged on the frame member respectively, and the guide surfaces of the two guide frames are opposite to each other, the two chains are slidingly arranged on the guide surfaces of the two guide frames respectively, one end of each of the two chains is connected with the primary slide rail member, the other end of each of the two chains extends away from the two opposite sides of the frame member respectively, the two sprockets are engaged with the two chains respectively, and the two sprockets are connected with the driving end of the driving member respectively.

[0008] Preferably, the chain condition further comprises two chain guide wheels, the two chain guide wheels are rotatably arranged on the frame member respectively and are pressed against the two sprockets respectively, and the chain guide wheels and the guide frame cooperate to guide the movement of the chain.

[0009] Preferably, the number of primary slide rail members and secondary slide rail members is two, the two secondary slide rail members are slidingly connected with the two opposite inner walls of the frame member respectively, the two primary slide rail members are slidingly connected with the two secondary slide rail members respectively, and the chain condition is arranged between the two primary slide rail members and is connected with the two primary slide rail members respectively.

[0010] Preferably, the secondary slide rail member comprises secondary slide blocks and secondary slide rails, the two secondary slide blocks are arranged on the two opposite inner walls of the frame member respectively, the two secondary slide rails are slidingly connected with the two secondary slide blocks respectively, and the two primary slide rail members are slidingly connected with the two secondary slide rails respectively.

[0011] Preferably, the primary slide rail member comprises fixed plates, primary slide blocks and primary slide rails, the two fixed plates are arranged on the two secondary slide rails respectively, the two primary slide blocks are arranged on the two fixed plates respectively, the two primary slide rails are slidingly connected with the two primary slide blocks respectively, the chain condition is arranged between the two primary slide rails and is connected with the two primary slide rails respectively.

[0012] The application also discloses a miniaturized packaging box forming machine.

[0013] Preferably, the miniaturized packaging box forming machine further comprises a rack, an edge pressing mechanism and an edge folding mechanism, the rack comprises a bottom disc and a bearing frame arranged on the bottom disc, the frame member is arranged on the bottom disc, and one end of the chain condition is provided with a supporting block; the edge pressing mechanism is movably arranged on the bearing frame, and a pressing end of the edge pressing mechanism faces the supporting block; the edge folding mechanism comprises two first edge folding members arranged opposite to each other and two second edge folding members arranged opposite to each other, the two first edge folding members and the two second edge folding members are alternately arranged around the supporting block in sequence, and the folding height of the two first edge folding members is higher than that of the two second edge folding members.

[0014] Preferably, the first folding member comprises a folding frame body, a folding drive body, a folding rotation shaft, a folding cam and a folding part, two folding frame bodies are oppositely arranged on the chassis, two folding drive bodies are arranged on the two folding frame bodies respectively, two folding rotation shafts are connected with the driving ends of the two folding drive bodies respectively, two folding cams are respectively sleeved on the outer sides of the two folding rotation shafts, one end of each of the two folding parts is abutted with the two folding cams respectively, and the other end of each of the two folding parts is opposite to each other after penetrating through the two folding frame bodies, and the two folding parts are matched with the opposite sides of the semi-finished packaging box on the supporting block.

[0015] The application has the advantages that: through the arrangement of the first sliding rail member and the second sliding rail member, the application can realize two-stage lifting and improve the upgradable height. Meanwhile, in the initial state, the first sliding rail member and the second sliding rail member can be accommodated in the frame member, and compared with the lifting mechanism of the traditional packaging box forming machine, the height of the second lifting mechanism as a whole in the initial state is reduced, and miniaturization is realized. In addition, the first sliding rail member and the second sliding rail member are driven to lift by the chain condition, and the other end of the chain condition extends away from the side of the frame member, which can reasonably accommodate the chain condition, the space layout is reasonable, and the height of the second lifting mechanism as a whole is further reduced. The miniaturized packaging box forming machine assembled by the second lifting mechanism can effectively reduce the overall height of the equipment and realize miniaturization compared with the traditional bottom support using the ordinary lifting mechanism. BRIEF DESCRIPTION OF DRAWINGS

[0016] The drawings described herein are used to provide further understanding of the application, and form a part of the application. The schematic embodiments of the application and the description thereof are used to explain the application, and do not constitute an improper limitation on the application. In the drawings:

[0017] Figure 1 It is a structure schematic view of the second lifting mechanism in embodiment one;

[0018] Figure 2 It is a structure schematic view of the second lifting mechanism in embodiment one;

[0019] Figure 3 It is a structure schematic view of the chain and the guide frame in embodiment one;

[0020] Figure 4 It is a structure schematic view of the guide frame in embodiment one;

[0021] Figure 5 It is a structure schematic view of the miniaturized packaging box forming machine in embodiment two;

[0022] Figure 6 It is a side view of the first folding member and the second folding member in embodiment two;

[0023] Figure 7 Another side view of the first and second folding members in Example Two;

[0024] Figure 8 A schematic view of the structure of the edge pressing mechanism in Example Two;

[0025] Figure 9 A schematic view of the structure of the first folding member in Example Two;

[0026] Figure 10 Another schematic view of the structure of the first folding member in Example Two;

[0027] Figure 11 A schematic view of the structure of the second folding member in Example Two;

[0028] Figure 12 A schematic view of the structure of the upper box member in Example Two.

[0029] Reference signs:

[0030] 1, frame member; 2, first-stage slide rail member; 21, fixed plate; 22, first-stage slide block; 23, first-stage slide rail; 231, blocking block; 3, second-stage slide rail member; 31, second-stage slide block; 32, second-stage slide rail; 4, chain condition; 41, chain; 42, sprocket; 43, guide frame; 431, vertical section; 432, arc section; 433, horizontal section; 44, chain guide wheel; 45, supporting block; 5, driving member; 51, servo motor; 52, planetary reducer; 53, coupling; 54, driving shaft; 55, bearing; 56, transmission bearing; 57, transmission shaft; 6, rack; 61, chassis; 62, bearing frame; 7, edge pressing mechanism; 71, box pressing driving member; 72, lifting frame member; 73, box pressing member; 74, edge pressing driving member; 75, edge pressing member; 8, folding mechanism; 81, first folding member; 811, folding frame body; 812, folding driving body; 813, folding pivot; 814, folding cam; 815, folding section; 816, folding guide roller; 817, sliding column; 818, stabilizing plate; 82, second folding member; 821, second folding frame body; 822, second folding driving body; 823, second folding pivot; 824, second folding cam; 825, second sliding column; 826, second guide roller; 827, second horizontal folding plate; 828, second stabilizing plate; 9, box conveying mechanism; 91, upper box member; 911, first lead screw moving module; 912, lifting module; 913, second lead screw moving module; 914, box clamping frame; 92, lower box member. DETAILED DESCRIPTION

[0031] The embodiments of the present application will be described below with reference to drawings. Numerous specific details will be set forth in the following description in order to provide a thorough understanding of the application. However, it will be appreciated that the application can be practiced without these specific details. In other instances, well-known methods have not been described in detail in order not to unnecessarily obscure the present application.

[0032] It should be noted that the terms "upper", "lower", "left", "right", "front", "back", etc. are used herein only to describe relative positions or movements between components, and the terms are not intended to limit the scope of the application. The terms are relative terms and are not absolute terms. The terms are relative to the orientation of the components as shown in the drawings. If the orientation of the components is changed, the terms will change accordingly.

[0033] In addition, the terms "first", "second", etc. are used herein only for the purpose of description, and are not intended to indicate or imply relative importance or an order of magnitude. The terms "first", "second", etc. can be explicitly or implicitly included in at least one of the features. In addition, the technical solutions of various embodiments can be combined with each other, but the combination of technical solutions must be based on the realization of a person skilled in the art. When the combination of technical solutions is contradictory or cannot be realized, it is considered that the combination of technical solutions does not exist, and is not within the scope of protection claimed by the present application.

[0034] In order to further understand the application content, characteristics and effects of the present application, the following embodiments are exemplified and described in detail as follows with reference to the accompanying drawings.

[0035] Embodiment One:

[0036] Referring to Figure 1 and Figure 2 , Figure 1 is a structural schematic diagram of a two-stage lifting mechanism in Embodiment One, Figure 2 is a structural schematic diagram of a two-stage lifting mechanism in Embodiment One, the two-stage lifting mechanism in the embodiment includes a frame member 1, a first-stage sliding rail member 2, a second-stage sliding rail member 3, a chain member 4, and a driving member 5. The second-stage sliding rail member 3 is slidably connected to the frame member 1 in the vertical direction. The first-stage sliding rail member 2 is slidably connected to the second-stage sliding rail member 3 in the vertical direction. One end of the chain member 4 is connected to the first-stage sliding rail member 2, and the other end of the chain member 4 extends away from the side of the frame member 1. The driving end of the driving member 5 is connected to the chain member 4 and drives the one end of the chain member 4 to reciprocate and lift. In the initial state, the first-stage sliding rail member 2 and the second-stage sliding rail member 3 are both accommodated in the frame member 1.

[0037] The secondary lifting mechanism in the embodiment is applied to a packaging box forming machine, and is arranged at the bottom of the packaging box forming machine. One end of the chain condition 4 is provided with a supporting block 45 for supporting a packaging box semi-finished product to be lifted, and cooperates with the edge folding mechanism and the edge pressing mechanism to complete the packaging box forming operation. The secondary lifting mechanism has an initial state and a lifting supporting state. In the lifting supporting state, the driving member 5 drives the one end of the chain condition 4 to rise, and the one end of the chain condition 4 drives the primary sliding rail member 2 to slide and rise on the secondary sliding rail member 3. When the primary sliding rail member 2 rises to a certain height, the primary sliding rail member 2 drives the secondary sliding rail member 3 to slide and rise on the frame member 1. In this way, the height to which the supporting block 45 can rise is the sum of the heights of the frame member 1, the primary sliding rail member 2 and the secondary sliding rail member 3. Through the arrangement of the primary sliding rail member 2 and the secondary sliding rail member 3, the embodiment can realize two-stage lifting and improve the lifting height. At the same time, in the initial state, that is, the descending reset state, the primary sliding rail member 2 and the secondary sliding rail member 3 can be accommodated in the frame member 1 after descending. Compared with the lifting mechanism of the traditional packaging box forming machine, the height of the secondary lifting mechanism as a whole in the descending reset state is reduced, and miniaturization is realized. In addition, the primary sliding rail member 2 and the secondary sliding rail member 3 are driven to rise and fall by the chain condition 4, and the other end of the chain condition 4 extends away from the side of the frame member 1. The chain condition 4 can be reasonably accommodated, the space layout is reasonable, and the height of the secondary lifting mechanism as a whole is further reduced. It should be particularly noted that in the initial state of the embodiment, the primary sliding rail member 2 and the secondary sliding rail member 3 are accommodated in the frame member 1. The primary sliding rail member 2 and the secondary sliding rail member 3 can be completely accommodated in the frame member 1, or the primary sliding rail member 2 and the secondary sliding rail member 3 can be partially accommodated in the frame member 1. This is not limited.

[0038] Referring to Figure 3 and Figure 4 , Figure 3 is a structural schematic view of the chain and the guide frame in embodiment one, Figure 4As shown in the structural schematic diagram of the guide frame in Embodiment One, preferably, the chain condition 4 comprises a chain 41, a chain wheel 42 and a guide frame 43, the chain wheel 42 is connected with the driving end of the driving member 5, the chain 41 is engaged with the chain wheel 42, one end of the chain 41 is connected to the first-stage slide rail member 2, the other end of the chain 41 extends in the direction away from the side surface of the frame member 1, the guide frame 43 is arranged on the frame member 1, the chain 41 is slidingly arranged in the guide frame 43, the guide frame 43 guides the movement of the chain 41, so that one end of the chain 41 performs vertical reciprocating lifting. In specific application, the guide frame 43 comprises a vertical segment 431, an arc segment 432 and a horizontal segment 433 connected in sequence, the arc segment 432 is located at the bottom of the frame member 1, one end of the vertical segment 431 is connected to the top of the arc segment 432, the other end of the vertical segment 431 is vertically arranged and extends to the position close to the top of the frame member 1, one end of the horizontal segment 433 is connected with the arc segment 432, the other end of the horizontal segment 433 is horizontally arranged and extends in the direction away from the side surface of the frame member 1, the chain 41 is slidingly arranged in the vertical segment 431, the arc segment 432 and the horizontal segment 433, so that the chain 41 can be reasonably stored, that is, most of the chain 41 is stored in the horizontal segment 433 in the horizontal state in the descending reset state, without occupying additional height space, thereby reducing the overall height of the second-stage lifting mechanism. Of course, in other embodiments, the horizontal segment 433 can also be slightly inclined relative to the horizontal plane. Specifically, the frame member 1 is a fixed frame. The driving member 5 comprises a servo motor 51, a planetary reducer 52, a shaft coupling 53, a driving shaft 54 and a bearing 55, the motor shaft of the servo motor 51 is drivingly connected with the planetary reducer 52, the output shaft of the planetary reducer 52 is connected with the driving shaft 54 through the shaft coupling 53, the bearing 55 is arranged in the frame member 1, the driving shaft 54 penetrates through the bearing 55, and the chain wheel 42 is sleeved outside the driving shaft 54. The servo motor 51 drives the shaft coupling 53 to rotate through the speed reduction transmission of the planetary reducer 52, the shaft coupling 53 drives the driving shaft 54 to rotate, and the driving shaft 54 drives the chain wheel 42 to rotate, thereby driving the chain 41 to slide on the guide frame 43, that is, one end of the chain 41 is lifted or lowered, thereby driving the supporting block 45 to be lifted or lowered.

[0039] Reference is made to Figure 2, preferably, the chain condition 4 is two in number, two guide frames 43 are respectively arranged on the frame body 1, and the guide surfaces of the two guide frames 43 are opposite to each other, two chains 41 are respectively arranged to slide on the guide surfaces of the two guide frames 43, one end of the two chains 41 is respectively connected to the first sliding rail 2, and the other end of the two chains 41 extends away from the two opposite side surfaces of the frame body 1, two sprockets 42 are respectively engaged with the two chains 41, and the two sprockets 42 are respectively connected with the driving end of the driving member 5. In specific application, the guide surfaces of the two guide frames 43 are opposite and symmetrically arranged. It can be understood that the side of the chain 41 in contact with the vertical section 431, the arc-shaped section 432 and the horizontal section 433 is the guide surface. The side of the chain 41 in contact with the guide surface of the guide frame 43 is provided with a guide groove. The chain 41 slides along the guide frame 43 through the cooperation of the guide groove and the guide frame 43, thereby ensuring the accuracy of the movement of the chain 41. The other end of the two horizontal sections 433 extends away from the two opposite side surfaces of the frame body 1. Through the arrangement of the two chain conditions 4, the stress of the chain 41 is more uniform, and the stability of the movement of the chain 41 is improved. Specifically, the driving member 5 further comprises a transmission bearing 56, a transmission shaft 57 and a transmission belt. The transmission bearing 56 is arranged on the frame body 1. The transmission shaft 57 penetrates the transmission bearing 56. The transmission belt is sequentially arranged around the transmission shaft 57 and the driving shaft 54. One of the sprockets 42 is sleeved outside the driving shaft 54, and the other sprocket 42 is sleeved outside the transmission shaft 57. In this way, one driving source simultaneously drives the two chains 41 to ascend and descend, simplifies the internal structure of the mechanism, and reduces the overall volume of the mechanism.

[0040] Referring back to Figure 1 and Figure 2 , preferably, the chain condition 4 further comprises two chain guide wheels 44. The two chain guide wheels 44 are respectively arranged to rotate on the frame body 1 and are respectively pressed against the two sprockets 42. The chain guide wheels 44 cooperate with the guide frames 43 to guide the movement of the chains 41. In specific application, the chain guide wheels 44 are provided with limiting notches on the surfaces. The chains 41 are located in the limiting notches. Through the arrangement of the chain guide wheels 44, the shape of the chains 41 can be effectively maintained, especially the shape of the chains 41 arranged vertically. The chains 41 arranged vertically are prevented from being bent, and the stability of the movement of the chains 41 is improved. Specifically, the two chain guide wheels 44 are respectively located on the two opposite side edges of the vertical section 431. The two chains 41 are located between the two chain guide wheels 44. The two chain guide wheels 44 cooperate to press and guide the two chains 41, so that one end of the two chains 41 remains in a vertically arranged state.

[0041] Referring back to Figure 1 and Figure 2, preferably, the number of the first sliding rail members 2 and the second sliding rail members 3 is two, the two second sliding rail members 3 are respectively slidably connected to the opposite inner walls of the frame member 1, the two first sliding rail members 2 are respectively slidably connected to the two second sliding rail members 3, and the chain member 4 is arranged between the two first sliding rail members 2 and connected to the two first sliding rail members 2. In specific application, one end of the chain member 4 is connected to the two first sliding rail members 2, that is, when one end of the chain member 4 is lifted, the first sliding rail members 2 are simultaneously lifted relative to the second sliding rail members 3, and when one end of the chain member 4 is lifted by a length of the first sliding rail member 2, the first sliding rail members 2 continue to be lifted to lift the second sliding rail members 3 relative to the frame member 1, so that the two-stage lifting displacement is realized, and the lifting height of the supporting block 45 is improved.

[0042] Referring back to Figure 1 and Figure 2 , preferably, the second sliding rail member 3 comprises a second sliding block 31 and a second sliding rail 32, the two second sliding blocks 31 are respectively fixedly arranged on the opposite inner walls of the frame member 1, the two second sliding rails 32 are respectively slidably connected to the two second sliding blocks 31, and the two first sliding rail members 2 are respectively slidably connected to the two second sliding rails 32. Specifically, the first sliding rail member 2 comprises a fixed plate 21, a first sliding block 22 and a first sliding rail 23, the two fixed plates 21 are respectively fixedly arranged on the two second sliding rails 32, the two first sliding blocks 22 are respectively fixedly arranged on the two fixed plates 21, the two first sliding rails 23 are respectively slidably connected to the two first sliding blocks 22, and the chain member 4 is arranged between the two first sliding rails 23 and connected to the two first sliding rails 23. In specific application, the bottom of the first sliding rail 23 and the second sliding rail 32 is provided with a blocking block 231, which avoids the disengagement of the second sliding rail 32 from the second sliding block 31 and the disengagement of the first sliding block 22 from the first sliding rail 23 when the first sliding rail 23 and the second sliding rail 32 are lifted. It can be understood that one end of the chain member 41 is lifted to drive the first sliding rail 23 and the first sliding block 22 to ascend, until the blocking block 231 abuts against the first sliding block 22, at which time the first lifting process is completed, and the supporting block 45 is lifted by a length of the first sliding rail 23. With the continuous lifting of one end of the chain member 41, the first sliding rail 23 lifts the first sliding block 22, the fixed plate 21 and the second sliding rail 32 synchronously, and the second sliding rail 32 slides on the second sliding block 31 until the blocking block 231 abuts against the second sliding block 31, at which time the second lifting process is completed, and the supporting block 45 is lifted by a length of the second sliding rail 32. In this way, only one driving source is needed to drive, which simplifies the internal structure and also realizes the two-stage lifting and improves the lifting height. In addition, when descending and resetting, the first sliding rail 23 and the second sliding rail 32 can be accommodated in the frame member 1, which reduces the overall height of the mechanism.

[0043] Embodiment two:

[0044] Referring back to Figure 5 , Figure 5The structure diagram of the small-sized packaging box forming machine in the embodiment two, the small-sized packaging box forming machine in the embodiment two comprises a rack 6, an edge pressing mechanism 7, an edge folding mechanism 8 and the two-stage lifting mechanism in the embodiment one, the rack 6 comprises a bottom disc 61 and a bearing frame 62 arranged on the bottom disc 61, the rack body 1 is arranged on the bottom disc 61, and one end of the chain condition 4 is provided with a supporting block 45. The edge pressing mechanism 7 is movably arranged on the bearing frame 62, and the pressing end of the edge pressing mechanism 7 faces the supporting block 45. The edge folding mechanism 8 comprises two first edge folding pieces 81 arranged opposite to each other and two second edge folding pieces 82 arranged opposite to each other, the two first edge folding pieces 81 and the two second edge folding pieces 82 are alternately arranged around the supporting block 45 in sequence, and the cooperation edge folding height of the two first edge folding pieces 81 is higher than that of the two second edge folding pieces 82.

[0045] Referring to Figures 6-8 , Figure 6 the side view of the first edge folding piece and the second edge folding piece in the embodiment two, Figure 7 the other side view of the first edge folding piece and the second edge folding piece in the embodiment two, Figure 8As shown in the structural schematic diagram of the blank holder in Embodiment 2, preferably, the blank holder 7 comprises a pressure box driving member 71, a lifting frame body member 72, a pressure box member 73, a blank edge driving member 74 and a blank edge member 75. The driving end of the pressure box driving member 71 is connected with the lifting frame body member 72, the lifting frame body member 72 is movably arranged on the bearing frame 62, the pressure box member 73 is arranged at the bottom of the lifting frame body member 72 and faces the supporting block 45. The blank edge driving member 74 is arranged on the lifting frame body member 72, the driving end of the blank edge driving member 74 is connected with the blank edge member 75, the blank edge member 75 is movably arranged on the lifting frame body member 72 and is sleeved on the outside of the pressure box member 73 and faces the supporting block 45. In specific application, the shape of the end of the blank edge member 75 facing the supporting block 45 is adapted to the shape of the packaging box semi-finished product, the packaging box semi-finished product is sleeved on the blank edge member 75, the pressure box driving member 71 drives the lifting frame body member 72 to descend, the lifting frame body member 72 drives the pressure box member 73, the blank edge member 75 and the packaging box semi-finished product to synchronously descend, until the packaging box semi-finished product abuts against the supporting block 45, then the pressure box member 73, the blank edge member 75, the packaging box semi-finished product, the supporting block 45 and the chain 41 continue to descend, until the packaging box semi-finished product descends to between the two first edge folding members 81. The blank edge driving member 74 drives the blank edge member 75 to slide on the lifting frame body member 72 and ascend, namely the blank edge member 75 ascends relative to the pressure box member 73, at this time the blank edge member 75 is separated from the packaging box semi-finished product, the pressure box member 73 abuts against the bottom of the packaging box semi-finished product and presses the packaging box semi-finished product on the surface of the supporting block 45, the two first edge folding members 81 fold the outer wrapping paper on the two opposite side edges of the packaging box semi-finished product on the two side edges and the remaining outer wrapping paper extends from the opening at the top of the packaging box semi-finished product to the inside. The blank edge driving member 74 drives the blank edge member 75 to slide on the lifting frame body member 72 and descend and extend into the inside of the packaging box semi-finished product, and folds the remaining outer wrapping paper on the two opposite inner walls of the packaging box semi-finished product, of course the outer wrapping paper is adhered with glue, when the outer wrapping paper is folded on the packaging box semi-finished product, it is adhered on the packaging box semi-finished product. Then the blank edge driving member 74 drives the blank edge member 75 to slide on the lifting frame body member 72 and ascend, but the pressure box member 73 always presses the packaging box semi-finished product on the surface of the supporting block 45, the pressure box driving member 71 drives the lifting frame body member 72 to descend, the lifting frame body member 72 drives the pressure box member 73 and the supporting block 45 to synchronously descend, until the supporting block 45 and the packaging box semi-finished product descend to between the two second edge folding members 82, the two second edge folding members 82 fold the outer wrapping paper on the other two side edges of the packaging box semi-finished product, the folding process and principle are similar to those of the first edge folding members 81, which will not be described herein. After the folding is completed, the pressure box driving member 71 drives the lifting frame body member 72 to ascend, the lifting frame body member 72 drives the pressure box member 73 to ascend, the driving member 5 drives the chain 41 to ascend, the chain 41 drives the supporting block 45 and the packaging box to ascend, at this time the packaging box can be taken away to complete the forming operation.Specifically, the cartridge driving member 71 comprises a cartridge driving motor, a planetary reducer, a bevel gear and a bevel gear rack. The motor shaft of the cartridge driving motor is connected with the planetary reducer. The output shaft of the planetary reducer is connected with the bevel gear. The bevel gear is engaged with the bevel gear rack. The bevel gear rack is arranged in the vertical direction on the lifting frame body member 72. The lifting frame body member 72 is a lifting frame. The cartridge member 73 is a cartridge rod. The edge pressing driving member 74 comprises an edge pressing driving motor, a shaft coupling, a screw rod, a screw nut and a fixed sliding block. The motor shaft of the edge pressing driving motor is connected with one end of the shaft coupling. The screw rod is connected with the other end of the shaft coupling. The screw nut is sleeved on the outside of the screw rod. The fixed sliding block is arranged on the lifting frame body member 72. The edge pressing member 75 comprises an edge pressing guide rail and an edge pressing block. One end of the edge pressing guide rail is connected with the screw nut. The other end of the edge pressing guide rail is connected with the edge pressing block. The edge pressing guide rail is slidingly connected with the fixed sliding block. The shape of the edge pressing block is matched with the shape of the opening of the packaging box. A through hole is arranged in the middle of the edge pressing block. The cartridge rod is arranged to extend through the through hole to press the packaging box on the supporting block 45.

[0046] Referring to Figure 9 and Figure 10 , Figure 9 FIG. 2 is a structural schematic view of a first folding member in Embodiment Two, Figure 10As another structural schematic view of the first folding member in Embodiment Two, preferably, the first folding member 81 comprises a folding frame body 811, a folding driving body 812, a folding rotating shaft 813, a folding cam 814 and a folding part 815, two folding frame bodies 811 are oppositely arranged on the chassis 61, two folding driving bodies 812 are respectively arranged on the two folding frame bodies 811, two folding rotating shafts 813 are respectively connected with the driving ends of the two folding driving bodies 812, two folding cams 814 are respectively sleeved on the outside of the two folding rotating shafts 813, one end of the two folding parts 815 is respectively abutted with the two folding cams 814, the other end of the two folding parts 815 respectively penetrates through the two folding frame bodies 811 and oppositely faces each other, and the two folding parts 815 are used for folding the opposite two sides of the packaging box semi-finished product on the supporting block 45. In specific application, each first folding member 81 further comprises a folding guide roller 816, a pressing plate 818 and four sliding columns 817, the number of the folding cam 814 is four, the number of the folding part 815 is two, the four folding cams 814 are sequentially and spacedly sleeved on the folding rotating shaft 813, the four sliding columns 817 are respectively movably arranged on the folding frame body 811, and the four sliding columns 817 are respectively correspondingly abutted with the four folding cams 814, the position where the sliding column 817 is abutted with the folding cam 814 is provided with a roller, which is used for cooperating with the folding cam 814 to move the sliding column 817. The end of the four sliding columns 817 away from the folding cam 814 is respectively connected with the folding guide roller 816, one of the folding parts 815, the other folding part 815 and the pressing plate 818, one of the folding parts 815 comprises a horizontal folding plate, and the other folding part 815 comprises two vertically arranged and spaced folding plates. It can be understood that when the supporting block 45 and the packaging box semi-finished product are lowered to between the two first folding members 81, the folding driving body 812 drives the folding rotating shaft 813 to rotate, the folding rotating shaft 813 drives the folding cam 814 to rotate, thereby pushing one of the sliding columns 817 and the folding guide roller 816 to move close to the packaging box semi-finished product, and the distance between the two folding guide rollers 816 is equal to the width of the packaging box semi-finished product. Thus, when the packaging box semi-finished product is lowered, the two folding guide rollers 816 fold the originally horizontal outer wrapping paper into a vertical state and adhere to the opposite two outer side walls of the packaging box semi-finished product. The folding driving body 812 continues to drive the folding rotating shaft 813 to rotate, and the folding cam 814 drives the sliding column 817 and the horizontal folding plate to move close to the packaging box semi-finished product, and folds the part of the outer wrapping paper in the vertical state and higher than the packaging box semi-finished product to the center of the packaging box semi-finished product. The pressing driving member 74 drives the pressing member 75 to slide and lower on the lifting frame body member 72 and extend into the packaging box semi-finished product, and folds the part of the outer wrapping paper higher than the packaging box semi-finished product on the opposite two inner walls of the packaging box semi-finished product. Similarly, the vertical folding plate is used for folding the part of the outer wrapping paper wider than the packaging box semi-finished product on the other two side walls of the packaging box semi-finished product, so that the outer wrapping paper can completely wrap the outer wall of the packaging box semi-finished product when the second folding member 82 is used for folding the other two side walls.The pressing plate 818 is used to press the packaging box semi-finished product during the folding, and the driving principle and process are similar to those of the folding guide roller 816, which will not be described here. Of course, the shapes of the four folding cams 814 in the embodiment are different, and are specifically set according to the size and specifications of the packaging box semi-finished product and the corresponding stroke requirements of the sliding column 817. Specifically, the folding driving body 812 is a motor.

[0047] With reference to Figure 11 , Figure 11 is a structural schematic view of the second folding member in Embodiment Two. Preferably, the second folding member 82 includes a second folding frame body 821, a second folding driving body 822, a second folding shaft 823, three second folding cams 824, three second sliding columns 825, a second guide roller 826, a second horizontal folding plate 827, and a second pressing plate 828. Two second folding frame bodies 821 are oppositely arranged on the bottom plate 61. Two second folding driving bodies 822 are arranged on the two second folding frame bodies 821, respectively. Two second folding shafts 823 are connected to the driving ends of the two second folding driving bodies 822, respectively. Three second folding cams 824 are spaced apart and sleeved on each second folding shaft 823. Each second folding cam 824 is arranged in cooperation with a second sliding column 825. The ends of the three second sliding columns 825 away from the second folding cams 824 are connected to the second guide roller 826, the second horizontal folding plate 827, and the second pressing plate 828, respectively. It can be understood that the second guide roller 826 has a similar function to the folding guide roller 816, which is used to fold the outer packaging paper in a horizontal state into a vertical state and adhere to the other two outer side walls of the packaging box semi-finished product during the descent of the packaging box semi-finished product. The second horizontal folding plate 827 has a similar function to the horizontal folding plate, which is used to fold the part of the outer packaging paper in a vertical state above the packaging box semi-finished product to the center of the packaging box semi-finished product, so as to facilitate the subsequent edge pressing member 75 to fold it on the two inner walls. The second pressing plate 828 has a similar function to the pressing plate 818, which will not be described here.

[0048] With reference to Figure 12 , Figure 12As shown in the schematic diagram of the upper box member in Embodiment 2, preferably, the small-sized packaging box forming machine further comprises a box conveying mechanism 9, which comprises an upper box member 91 and a lower box member 92. The upper box member 91 comprises a first screw moving module 911, a lifting module 912, a second screw moving module 913 and two box clamping frames 914. The first screw moving module 911 is arranged on the bearing frame 62. The lifting module 912 is movably arranged on the first screw moving module 911. The second screw moving module 913 is movably arranged on the lifting module 912. The two box clamping frames 914 are movably arranged on the second screw moving module 913 and are spaced apart from each other. It can be understood that one end of the first screw moving module 911 is close to the packaging box semi-finished product conveying mechanism. The packaging box semi-finished product conveying mechanism is provided with a conveying belt to convey the packaging box semi-finished products one by one to the vicinity of one end of the first screw moving module 911. The one end of the first screw moving module 911 is close to the edge pressing mechanism 7. The second screw moving module 913 drives the two box clamping frames 914 to move close to each other to clamp the packaging box semi-finished product on the packaging box semi-finished product conveying mechanism. The first screw moving module 911 drives the packaging box semi-finished product to move to the lower side of the edge pressing member 75. The lifting module 912 drives the packaging box semi-finished product to be lifted and sleeved on the edge pressing member 75. The second screw moving module 913 drives the two box clamping frames 914 to move away from each other. It can be understood that the screw rod in the second screw moving module 913 is composed of two screw rods with opposite screw threads. The two box clamping frames 914 are respectively screwed to the outer sides of the two screw rods by two screw nuts. In this way, the two box clamping frames 914 can be simultaneously driven to move close to or away from each other. The above is a conventional setting of the existing screw module, which will not be described here again. Then, the edge pressing mechanism 7 and the edge folding mechanism 8 cooperate to fold and form the packaging box semi-finished product. In this way, the automatic box conveying can be realized, and manual operation is avoided. The lifting module 912 also drives the lifting by the cooperation of the motor, the screw rod and the screw nut. The structure and principle of the lower box member 92 are similar to those of the upper box member 91, which is used for discharging the packaging box after the edge folding and forming. Here, it will not be described again.

[0049] In summary, the secondary lifting mechanism has an initial state and an upper supporting state. In the upper supporting state, the driving member 5 drives one end of the chain condition 4 to rise, and the rising of one end of the chain condition 4 drives the first sliding rail member 2 to slide and rise on the second sliding rail member 3. When the first sliding rail member 2 rises to a certain height, the first sliding rail member 2 drives the second sliding rail member 3 to slide and rise on the frame member 1. In this way, the height to which the supporting block 45 can rise is the sum of the heights of the frame member 1, the first sliding rail member 2 and the second sliding rail member 3. Through the arrangement of the first sliding rail member 2 and the second sliding rail member 3, the embodiment can realize two-stage lifting and improve the height that can be raised. At the same time, in the initial state, i.e. the descending reset state, the first sliding rail member 2 and the second sliding rail member 3 can be accommodated in the frame member 1 after descending. Compared with the lifting mechanism of the conventional packaging box forming machine, the height of the secondary lifting mechanism as a whole in the descending reset state is reduced, and miniaturization is realized. In addition, the first sliding rail member 2 and the second sliding rail member 3 are driven to rise and fall by the chain condition 4, and the other end of the chain condition 4 extends away from the side of the frame member 1. The chain condition 4 can be reasonably accommodated, the space layout is reasonable, and the height of the secondary lifting mechanism as a whole is further reduced. The miniaturized packaging box forming machine assembled by the secondary lifting mechanism can effectively reduce the overall height of the equipment and realize miniaturization compared with the conventional packaging box forming machine using a common lifting mechanism for bottom support.

[0050] The above is only an embodiment of the present application and is not intended to limit the present application. The present application can have various modifications and changes for those skilled in the art. Any modification, equivalent replacement, improvement, etc. within the spirit and principles of the present application shall be included in the scope of the claims of the present application.

Claims

1. A two-stage lifting mechanism, characterized by, The utility model relates to a chain type vertical lifting mechanism, including: Frame member (1), primary slide rail member (2), secondary slide rail member (3), chain condition (4) and drive member (5), the secondary slide rail member (3) is connected in the vertical direction along frame member (1), the primary slide rail member (2) is connected in the vertical direction along secondary slide rail member (3), one end of chain condition (4) is connected to primary slide rail member (2), the other end of chain condition (4) extends to the direction away from the side of frame member (1), and the drive end of drive member (5) is connected with chain condition (4) and drives one end of chain condition (4) to reciprocatingly lift, in initial state, primary slide rail member (2) and secondary slide rail member (3) are all housed in frame member (1).

2. The two-stage lifting mechanism of claim 1, wherein, Chain condition (4) includes chain (41), sprocket (42) and guide frame (43), sprocket (42) is connected with the drive end of drive member (5), chain (41) is engaged with sprocket (42), one end of chain (41) is connected to primary slide rail member (2), the other end of chain (41) extends to the direction away from the side of frame member (1), guide frame (43) is arranged in frame member (1), chain (41) is slidably arranged in guide frame (43), and guide frame (43) guides the movement of chain (41), so that one end of chain (41) reciprocatingly lifts vertically.

3. The two-stage lifting mechanism of claim 2, wherein, The number of chain condition (4) is two, two guide frames (43) are arranged in frame member (1) respectively, and the guide surfaces of two guide frames (43) are opposite, two chains (41) are slidably arranged on the guide surfaces of two guide frames (43) respectively, one end of two chains (41) is connected to primary slide rail member (2) respectively, the other end of two chains (41) extends to the direction away from the two opposite sides of frame member (1) respectively, two sprockets (42) are engaged with two chains (41) respectively, and two sprockets (42) are connected with the drive end of drive member (5) respectively.

4. The two-stage lifting mechanism of claim 3, wherein, Chain condition (4) further includes two chain guide wheels (44), two chain guide wheels (44) are rotatably arranged in frame member (1) respectively and are pressed against two sprockets (42) respectively, and the movement of chain (41) is guided by the cooperation of chain guide wheel (44) and guide frame (43).

5. The two-stage lifting mechanism of claim 1, wherein, The number of primary slide rail member (2) and secondary slide rail member (3) is two, two secondary slide rail members (3) are slidably connected to the two opposite inner walls of frame member (1) respectively, two primary slide rail members (2) are slidably connected to two secondary slide rail members (3) respectively, chain condition (4) is arranged between two primary slide rail members (2) and is connected with two primary slide rail members (2) respectively.

6. The two-stage lifting mechanism of claim 5, wherein, The secondary slide rail piece (3) comprises secondary slide blocks (31) and secondary slide rails (32), two of the secondary slide blocks (31) are respectively arranged on the opposite inner walls of the frame body piece (1), and two of the secondary slide rails (32) are respectively slidably connected with the two secondary slide blocks (31), and the two primary slide rail pieces (2) are respectively slidably connected with the two secondary slide rails (32).

7. The two-stage lifting mechanism of claim 6, wherein, The primary slide rail piece (2) comprises fixed plates (21), primary slide blocks (22) and primary slide rails (23), two of the fixed plates (21) are respectively arranged on the two secondary slide rails (32), two of the primary slide blocks (22) are respectively arranged on the two fixed plates (21), and two of the primary slide rails (23) are respectively slidably connected with the two primary slide blocks (22), and the chain condition (4) is arranged between the two primary slide rails (23) and is connected with the two primary slide rails (23).

8. A compact packaging box forming machine characterized by comprising: The secondary lifting mechanism comprises the primary slide rail piece (2) and the secondary slide rail piece (3).

9. The compact packer forming machine of claim 8, wherein, The machine further comprises a rack (6), a edge pressing mechanism (7) and an edge folding mechanism (8), the rack (6) comprises a chassis (61) and a bearing rack (62) arranged on the chassis (61), the frame body piece (1) is arranged on the chassis (61), and one end of the chain condition (4) is provided with a supporting block (45); the edge pressing mechanism (7) is movably arranged on the bearing rack (62), and a pressing end of the edge pressing mechanism (7) faces the supporting block (45); the edge folding mechanism (8) comprises two first edge folding pieces (81) arranged opposite to each other and two second edge folding pieces (82) arranged opposite to each other, two of the first edge folding pieces (81) and two of the second edge folding pieces (82) are alternately arranged around the supporting block (45) in sequence, and the folding height of the two first edge folding pieces (81) is higher than the folding height of the two second edge folding pieces (82).

10. The compact packer forming machine of claim 9, wherein, The first edge folding piece (81) comprises edge folding frame bodies (811), edge folding driving bodies (812), edge folding shafts (813), edge folding cams (814) and edge folding portions (815), two of the edge folding frame bodies (811) are oppositely arranged on the chassis (61), two of the edge folding driving bodies (812) are respectively arranged on the two edge folding frame bodies (811), two of the edge folding shafts (813) are respectively connected with the driving ends of the two edge folding driving bodies (812), two of the edge folding cams (814) are respectively sleeved on the outside of the two edge folding shafts (813), one end of each of the two edge folding portions (815) is abutted with the two edge folding cams (814), and the other end of each of the two edge folding portions (815) penetrates through the two edge folding frame bodies (811) and faces each other, and the two edge folding portions (815) are arranged to fold the opposite sides of the semi-finished product of the packaging box on the supporting block (45).

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