Corrugated paper holder folding device

Abstract

A corrugated paper holder folding device comprises a two-axis linear gantry, and a paper taking mechanism is connected to the lower end of a Z-axis sliding table of the two-axis linear gantry. The paper taking mechanism comprises a mounting frame, a servo motor is arranged on the mounting frame, variable-pitch roll shafts are symmetrically mounted on the mounting frame, the servo motor is in transmission connection with one ends of the variable-pitch roll shafts, two sets of spiral guide grooves are symmetrically formed in the variable-pitch roll shafts, and the screw pitches increase progressively from the middles of the variable-pitch roll shafts to the corresponding ends of the variable-pitch roll shafts. The variable pitch roll shaft is sleeved with a plurality of movable suction cup sets, the guide columns are sleeved with the two ends of each movable suction cup set, and needle bearings are arranged on the movable suction cup sets located on the two sides of the middle of the variable pitch roll shaft respectively and inserted into the corresponding spiral guide grooves; the folding mechanism and the paper taking mechanism are basically the same in structure and are symmetrically arranged, material jacking frames are arranged between the adjacent suction cup movable sets respectively, and connecting rods are hinged to the two ends of each material jacking frame and the ends of the suction cup movable sets on the two sides respectively. The device can achieve automatic folding forming of a plurality of paper supports at the same time, and the working efficiency is high.

Description

Technical Field

[0001] The utility model belongs to packaging machinery, in particular to a corrugated paper tray folding device. Background Art

[0002] Packaging cartons are widely used for packaging of various products, especially for packaging of various medical devices, such as various prefilled syringes, etc. In order to protect the products in the packaging cartons, paper trays are usually placed in the packaging cartons to support and limit the movement of the products and prevent multiple syringes and other products from colliding with each other in the cartons and being damaged.

[0003] like Fig.11 As shown, a common pre-filled needle paper holder is corrugated, that is, a plurality of V-shaped protrusions are evenly distributed on the paper holder, and a plurality of U-shaped notches are evenly distributed on each V-shaped protrusion. When in use, the pre-filled needle is placed in the U-shaped notch to support and protect the product.

[0004] At present, this folding is mostly done manually, which not only has low work efficiency and high labor cost, but also easily stains the surface of the paper tray, reducing the quality of the product. Therefore, it is necessary to design a corrugated paper tray folding device to replace manual work. Utility Model Content

[0005] The technical problem to be solved by the utility model is to provide a corrugated paper tray folding device which can realize automatic folding and forming of multiple paper trays at the same time and has high working efficiency.

[0006] In order to solve the above problems, the utility model adopts the following technical solutions:

[0007] A corrugated paper tray folding device comprises a two-axis linear gantry, a paper picking mechanism is connected to the lower end of the Z-axis slide of the two-axis linear gantry, and is used to suck the paper blank to be folded and send it to the folding mechanism;

[0008] The paper picking mechanism includes a mounting frame, a servo motor is provided on the mounting frame and a variable pitch roller is symmetrically installed, the output end of the servo motor is transmission-connected with one end of the variable pitch roller, two groups of spiral guide grooves with opposite rotation directions are symmetrically provided on the variable pitch roller, the pitch of each group of spiral guide grooves increases from the middle of the variable pitch roller to the corresponding end, guide pillars are symmetrically provided on both sides of the variable pitch roller on the mounting frame, and a plurality of suction cup moving groups are evenly sleeved on the variable pitch roller along the axial direction, the two ends of the suction cup moving groups are sleeved on the guide pillars by sliding fit, needle bearings are respectively provided on the suction cup moving groups on both sides of the middle of the variable pitch roller, and the needle bearings are respectively inserted into the corresponding spiral guide grooves, so that when the variable pitch roller rotates, the suction cup moving groups on both sides can be driven to move toward the middle at the same time;

[0009] The folding mechanism is arranged below the paper picking mechanism, and is used to cooperate with the paper picking mechanism to fold the paper blank into a paper tray; the folding mechanism and the paper picking mechanism have basically the same structure and are symmetrically arranged, except that: a material ejection rack is provided between two adjacent suction cup moving groups, and connecting rods are hinged between the two ends of the material ejection rack and the ends of the suction cup moving groups on both sides, so that when the suction cup moving groups of the folding mechanism move toward the middle at the same time, the material ejection rack can be driven to rise and eject the material, so as to realize the forming of the V-shaped protrusion on the paper tray.

[0010] As a further preference, the servo motor is fixed in the middle of the mounting frame, the two ends of the variable pitch roller are mounted in the mounting frame through bearings and are located on both sides of the servo motor, and the output end of the servo motor is connected to one end of the variable pitch roller on both sides through a synchronous belt assembly.

[0011] As a further preference, the number of each set of spiral guide grooves is two, and the number of suction cup moving groups sleeved on each variable pitch roller is five.

[0012] As a further preference, there are four guide pillars on both sides of each variable pitch roller shaft, and they are arranged symmetrically in a rectangular shape, and both ends of each suction cup moving group are mounted on two guide pillars arranged diagonally.

[0013] As a further preference, the suction cup moving group of the paper picking mechanism includes a mounting plate, a rectangular hole is provided in the middle of the mounting plate, which is used to be sleeved on the variable pitch roller; a suction cup bracket is fixed to the lower end of the mounting plate, and two groups of suction cups and multiple rectangular slots are symmetrically provided on the suction cup bracket, and each group of suction cups is respectively arranged in the corresponding rectangular slots to suck the paper blanks to be folded.

[0014] As a further preference, a rectangular groove is provided in the middle of the lower end of the mounting plate and a connecting plate is fixed in the rectangular groove, and limiting slots are symmetrically provided on both sides of the rectangular groove at the lower end of the mounting plate, and two limiting bosses are symmetrically provided on the suction cup bracket and are clamped in the corresponding limiting slots. The middle part of the suction cup bracket is fixed to the connecting plate by a screw to facilitate the disassembly and assembly of the suction cup bracket when changing the product specifications.

[0015] As a further preference, two air vents are symmetrically provided on both sides of the mounting plate near the suction cup bracket, and two suction cup air holes are symmetrically provided at both ends of the suction cup bracket, each suction cup air hole is respectively connected to a corresponding group of suction cups, and the inner end of each air vent is respectively connected to the corresponding suction cup air hole through a vent nozzle that passes through the connecting plate, so as to facilitate the disassembly and assembly of the suction cup bracket when changing the product specifications.

[0016] As a further preference, two hollow shafts are symmetrically provided on the mounting frame on both sides of the variable pitch roller shaft, and a plurality of air pipe joints respectively connected to the inner holes thereof are evenly distributed on the hollow shafts. The air pipe joints correspond one-to-one to the air holes on the same side and are connected through air pipes so that negative pressure can be externally connected through one end of the hollow shaft to simplify the air path structure.

[0017] As a further preference, the ejecting rack includes two columns and a ejecting plate connected between the two columns, the ejecting plate is conical and has a plurality of rectangular notches, two pins are arranged up and down on the outside of each column, the two ends of the ejecting rack are hinged to the ends of the suction cup moving groups on both sides by two connecting rods, and one end of the connecting rod is respectively sleeved on the corresponding pins.

[0018] As a further preference, the mounting frame includes a main frame and two support frames symmetrically fixed on both sides of the main frame, the servo motor is arranged in the middle of the main frame, the variable pitch roller and guide column are arranged on the two support frames, and the support frames are respectively fixed to two arms on both sides of the main frame by clamps and screws to facilitate the adjustment of the position of the variable pitch roller and the suction cup moving group.

[0019] The beneficial effects of the utility model are:

[0020] 1. Since a paper picking mechanism is connected to the lower end of the Z-axis slide of the two-axis linear gantry, the paper blank to be folded can be sucked and sent to the folding mechanism through multiple suction cup groups arranged on both sides of the paper picking mechanism; since the folding mechanism and the paper picking mechanism have basically the same structure and are symmetrically arranged, the paper blank to be folded can be clamped through the cooperation of the suction cup groups of the folding mechanism and the paper picking mechanism; since needle bearings are respectively provided on the suction cup groups on both sides of the middle of the variable pitch roller shaft and inserted into the corresponding spiral guide grooves, the suction cup groups on both sides can be driven to move toward the middle at the same time through the rotation of the variable pitch roller shaft of the folding mechanism and the paper picking mechanism, so that the paper blank can be folded;

[0021] 2. Since there are ejector racks between two adjacent suction cup groups of the folding mechanism, and connecting rods are respectively hinged between the two ends of the ejector rack and the ends of the suction cup groups on both sides, when the suction cup groups of the folding mechanism move toward the middle at the same time, the ejector rack can be driven to rise and eject the material, so that the V-shaped convexity of the paper tray can be formed when folding, so that the paper blank can be quickly folded into a corrugated paper tray, and multiple paper blanks can be folded at the same time each time, with high work efficiency. It can avoid easy soiling of the paper tray surface, and the consistency of the folded paper tray is good, which can improve the product grade. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 It is a structural schematic diagram of the utility model.

[0023] Figure 2 yes Figure 1 Right view of .

[0024] Figure 3 It is a structural schematic diagram of the paper picking mechanism.

[0025] Figure 4 It is a schematic diagram of the structure after the suction cup moving group is removed from the paper picking mechanism.

[0026] Figure 5 yes Figure 3 Schematic diagram of the structure of the suction cup moving group.

[0027] Figure 6 It is a structural schematic diagram of a variable pitch roller shaft.

[0028] Figure 7 It is a structural diagram of the folding mechanism.

[0029] Figure 8 yes Figure 7 Schematic diagram of the structure of removing the suction cup moving group.

[0030] Fig. 9 yes Figure 7 Schematic diagram of the structure of the middle lifting rack.

[0031] Fig.10 yes Figure 7 Schematic diagram of the structure of the middle suction cup moving group.

[0032] Fig.11 It is a structural schematic diagram of the pre-filled needle paper holder processed by the utility model.

[0033] In the figure: folding mechanism 1, paper picking mechanism 2, two-axis linear gantry 3, guide column 4, mounting frame 5, tensioning wheel 6, servo motor 7, variable pitch roller 8, suction cup drive group 9, air pipe joint 10, synchronous belt assembly 11, hollow shaft 12, connecting rod 13, ejector rack 14, quick connector 15;

[0034] Main frame 501, support frame 502, clamping block 503, mounting plate 901, linear bearing 902, suction cup bracket 903, limiting boss 9031, suction cup air hole 9032, air path quick connector 904, needle bearing 905, connecting plate 906, screw 907, suction cup 908, column 1401, ejector plate 1402, pin 1403. DETAILED DESCRIPTION

[0035] like Figure 1 to Figure 6 As shown, the utility model relates to a corrugated paper tray folding device, including a two-axis linear gantry 3, which is a two-axis electric slide with an X-axis and a Z-axis. A paper picking mechanism 2 is connected to the lower end of the Z-axis slide of the two-axis linear gantry through a quick connector 15, which is used to suck the paper blank to be folded and send it to the folding mechanism 1.

[0036] The paper picking mechanism 2 includes a mounting frame 5, a servo motor 7 is fixed in the middle of the mounting frame 5, and two variable pitch rollers 8 are symmetrically installed on both sides of the servo motor 7. Both ends of the variable pitch rollers 8 are installed in the mounting frame 5 through bearings. The output end of the servo motor 7 is connected to one end of the variable pitch rollers 8 on both sides through a synchronous belt assembly 11. Three rotatable tensioning wheels 6 are installed on the mounting frame 5 near the output end of the servo motor 7 for tightening the synchronous belt.

[0037] Two groups of spiral guide grooves 801 with opposite rotation directions are symmetrically arranged on both sides of the outer edge of the pitch-changing roller shaft 8. The pitch of each group of spiral guide grooves 801 increases from the middle of the pitch-changing roller shaft 8 to the corresponding end. In this embodiment, two spiral guide grooves are used as an example to fold into a paper support with a V-shaped protrusion; four guide pillars 4 are symmetrically arranged on both sides of each pitch-changing roller shaft 8 on the mounting frame 5 to form a rectangular arrangement, and a plurality of suction cup moving groups 9 are evenly arranged on the pitch-changing roller shaft 8 along the axial direction, and the two ends of the suction cup moving group 9 are respectively connected to It is installed on two guide columns 4 arranged diagonally through linear bearing sliding fit. The number of suction cup moving groups 9 on each variable pitch roller 8 is one more than the number of two groups of spiral guide grooves 801. The suction cup moving groups 9 located on both sides of the middle of the variable pitch roller 8 correspond to the spiral guide grooves 801 one by one and are respectively installed with needle bearings 905 through pins. The needle bearings 905 are respectively inserted into the corresponding spiral guide grooves 801, so that when the variable pitch roller 8 rotates, it can drive the suction cup moving groups 9 on both sides to move toward the middle at the same time.

[0038] The mounting frame 5 includes a main frame 501 and two support frames 502 symmetrically fixed on both sides of the main frame 501, the servo motor 7 is fixed on the middle of the main frame 501, the variable pitch roller 8 and the guide column 4 are fixed on the two support frames 502, and the support frames 502 are respectively fixed on the two arms on both sides of the main frame 501 by two pairs of clamps 503 and screws to facilitate the adjustment of the positions of the variable pitch roller 8 and the suction cup moving group 9.

[0039] The suction cup moving group 9 of the paper picking mechanism 2 includes a rectangular mounting plate 901, a rectangular hole is provided in the middle of the mounting plate 901 for sleeved on the pitch-changing roller shaft 8; the needle bearing 905 is installed in the middle of one side of the rectangular hole through a pin; a suction cup bracket 903 is fixed at the lower end of the mounting plate 901, and two groups of suction cups 908 and a plurality of rectangular notches are symmetrically provided on the suction cup bracket 903. In this embodiment, each group of suction cups 908 is taken as an example with three and are respectively arranged in corresponding rectangular notches to suck the paper blank to be folded; the linear bearings 902 are respectively fixed on both sides of the rectangular hole on the mounting plate 901;

[0040] A rectangular groove is provided in the middle of the lower end of the mounting plate 901 and a connecting plate 906 is fixed in the rectangular groove by screws. Limiting slots are symmetrically provided on both sides of the rectangular groove at the lower end of the mounting plate 901. Two limiting bosses 9031 are symmetrically provided on the suction cup bracket 903 and are clamped in the corresponding limiting slots. The middle part of the suction cup bracket 903 is fixed to the connecting plate 906 by a screw 907, so as to facilitate the disassembly and assembly of the suction cup bracket 903 when changing the specification.

[0041] Two air vents are symmetrically provided on both sides of the mounting plate 901 near the suction cup bracket 903 and are externally connected to an air path quick connector 904; two suction cup air holes 9032 with blocked outer ends are symmetrically provided at both ends of the suction cup bracket 903; each suction cup air hole 9032 is respectively connected to a corresponding group of suction cups 908; the inner end of each air vent is respectively connected to the corresponding suction cup air hole 9032 through a vent nozzle passing through the connecting plate 906, so as to facilitate the disassembly and assembly of the suction cup bracket 903 when changing the product specifications.

[0042] Two hollow shafts 12 are symmetrically fixed on both sides of the variable pitch roller shaft 8 on the mounting frame 5, and a plurality of air pipe joints 10 respectively connected to the inner holes thereof are evenly distributed on the hollow shafts 12. The air pipe joints 10 correspond one-to-one to the air holes on the same side and are connected through an air pipe (not shown in the figure) and an air path quick connector 904, so that negative pressure can be externally connected through one end of the hollow shaft 12 to simplify the air path structure.

[0043] like Figure 7 to Figure 10 As shown, the folding mechanism 1 is arranged below the paper picking mechanism 2, and is used to cooperate with the paper picking mechanism 2 to fold the paper blank into a paper tray. The folding mechanism 1 and the paper picking mechanism 2 have basically the same structure and are arranged symmetrically from top to bottom, except that: a material ejection rack 14 is provided between two adjacent suction cup moving groups 9, and connecting rods 13 are respectively hinged between the two ends of the material ejection rack 14 and the ends of the mounting plates 901 of the suction cup moving groups 9 on both sides, so that when the suction cup moving groups 9 of the folding mechanism 1 move toward the middle at the same time, the material ejection rack 14 can be driven to rise and eject the material, so as to realize the formation of the V-shaped protrusion on the paper tray.

[0044] The ejection rack 14 includes two columns 1401 and an ejection plate 1402 connected between the upper ends of the two columns. The ejection plate 1402 is conical and has a plurality of rectangular notches. Two upper and lower pins 1403 are fixed to the outer side of each column 1401. The two ends of the ejection rack 14 and the ends of the mounting plates 901 on both sides are hinged to each other through two connecting rods 13 arranged in parallel up and down, and one end of the connecting rod 13 is respectively sleeved on the corresponding pin 1403.

[0045] During operation, the two-axis linear gantry and the folding mechanism 1 are respectively arranged on the frame, and the X-axis slide of the two-axis linear gantry is started to drive the paper picking mechanism 2 to slide horizontally to a material picking position away from one end of the folding mechanism 1, and then the Z-axis slide is controlled to start moving downward, driving the paper picking mechanism 2 to move downward to contact the paper blank to be folded placed on the material picking manipulator; the suction cup on the paper picking mechanism 2 is controlled to be ventilated to suck the four paper blanks to be folded;

[0046] After controlling the Z-axis slide to start moving upward, the X-axis slide is controlled to start, driving the paper picking mechanism 2 to slide horizontally to the top of the folding mechanism 1 and then stop after alignment, and controlling the Z-axis slide to start moving downward, driving the paper picking mechanism 2 to send the paper blank to be folded to the folding mechanism 1;

[0047] The suction cup on the folding mechanism 1 is controlled to be ventilated, so that the paper blank is adsorbed between the suction cups on the paper picking mechanism 2 and the folding mechanism 1; the servo motors 7 of the paper picking mechanism 2 and the folding mechanism 1 are controlled to start simultaneously, and the variable pitch roller shaft 8 is driven to rotate simultaneously through the synchronous belt assembly 11 respectively. When the variable pitch roller shaft 8 rotates, the suction cup moving groups 9 on both sides are driven to move toward the middle simultaneously through the needle bearing inserted into the spiral guide groove 801, so that the paper blank can be folded quickly;

[0048] At the same time, since connecting rods 13 are respectively hinged between the two ends of the lifting frame 14 disposed between the two adjacent suction cup moving groups 9 of the folding mechanism 1 and the ends of the suction cup moving groups 9 on both sides, when the suction cup moving groups 9 of the folding mechanism 1 move toward the middle at the same time, the lifting frame 14 can be driven to rise and lift the material, so that the V-shaped convexity of the paper tray can be formed when folding, so that four paper blanks can be quickly folded into four corrugated paper trays;

[0049] After the paper blank is formed, the suction cup on the paper picking mechanism 2 is controlled to cut off, and the paper picking mechanism 2 is driven by the two-axis linear gantry to return to the material picking position to repeat the material picking; the suction cup on the folding mechanism 1 is controlled to cut off, and the paper tray placed on the folding mechanism 1 is taken away by another material picking robot.

[0050] Although the implementation scheme of the utility model has been disclosed as above, it is not limited to the applications listed in the specification and implementation modes. It can be fully applied to various fields suitable for the utility model. For those familiar with the art, additional modifications can be easily implemented. Therefore, without departing from the general concept defined by the claims and the scope of equivalents, the utility model is not limited to the specific details and the illustrations shown and described herein.

Claims

1. A corrugated paper tray folding device, comprising a two-axis linear gantry, characterized in that: The lower end of the Z-axis slide of the two-axis linear gantry is connected to a paper picking mechanism for sucking the paper blank to be folded and sending it to the folding mechanism; The paper picking mechanism includes a mounting frame, a servo motor is provided on the mounting frame and a variable pitch roller is symmetrically installed, the output end of the servo motor is transmission-connected with one end of the variable pitch roller, two groups of spiral guide grooves with opposite rotation directions are symmetrically provided on the variable pitch roller, the pitch of each group of spiral guide grooves increases from the middle of the variable pitch roller to the corresponding end, guide pillars are symmetrically provided on both sides of the variable pitch roller on the mounting frame, and a plurality of suction cup moving groups are evenly sleeved on the variable pitch roller along the axial direction, the two ends of the suction cup moving groups are sleeved on the guide pillars by sliding fit, needle bearings are respectively provided on the suction cup moving groups on both sides of the middle of the variable pitch roller, and the needle bearings are respectively inserted into the corresponding spiral guide grooves, so that when the variable pitch roller rotates, the suction cup moving groups on both sides can be driven to move toward the middle at the same time; The folding mechanism is arranged below the paper picking mechanism, and is used to cooperate with the paper picking mechanism to fold the paper blank into a paper tray; the folding mechanism and the paper picking mechanism have basically the same structure and are symmetrically arranged, except that: a material ejection rack is provided between two adjacent suction cup moving groups, and connecting rods are hinged between the two ends of the material ejection rack and the ends of the suction cup moving groups on both sides, so that when the suction cup moving groups of the folding mechanism move toward the middle at the same time, the material ejection rack can be driven to rise and eject the material, so as to realize the forming of the V-shaped protrusion on the paper tray.

2. The corrugated paper tray folding device according to claim 1, characterized in that: The servo motor is fixed in the middle of the mounting frame, and both ends of the variable pitch roller are mounted in the mounting frame through bearings and located on both sides of the servo motor. The output end of the servo motor is connected to one end of the variable pitch roller on both sides through a synchronous belt assembly.

3. A corrugated paper tray folding device according to claim 1 or 2, characterized in that: The number of each set of spiral guide grooves is two, and the number of suction cup moving groups sleeved on each variable pitch roller shaft is five.

4. The corrugated paper tray folding device according to claim 3, characterized in that: There are four guide pillars on both sides of each variable pitch roller shaft, and they are arranged symmetrically in a rectangular shape. Both ends of each suction cup moving group are installed on two guide pillars arranged diagonally.

5. A corrugated paper tray folding device according to claim 1 or 4, characterized in that: The suction cup moving group of the paper picking mechanism includes a mounting plate, a rectangular hole is provided in the middle of the mounting plate, and is used to be sleeved on the variable pitch roller; a suction cup bracket is fixed at the lower end of the mounting plate, and two groups of suction cups and multiple rectangular notches are symmetrically provided on the suction cup bracket, and each group of suction cups is respectively arranged in the corresponding rectangular notches to suck the paper blanks to be folded.

6. The corrugated paper tray folding device according to claim 5, characterized in that: A rectangular groove is provided in the middle of the lower end of the mounting plate and a connecting plate is fixed in the rectangular groove. Limiting grooves are symmetrically provided on both sides of the rectangular groove at the lower end of the mounting plate. Two limiting bosses are symmetrically provided on the suction cup bracket and are clamped in the corresponding limiting grooves. The middle part of the suction cup bracket is fixed to the connecting plate by a screw to facilitate the disassembly and assembly of the suction cup bracket when changing the product specifications.

7. The corrugated paper tray folding device according to claim 6, characterized in that: Two air vents are symmetrically provided on both sides of the mounting plate near the suction cup bracket, and two suction cup air holes are symmetrically provided at both ends of the suction cup bracket. Each suction cup air hole is respectively connected to a corresponding group of suction cups, and the inner end of each air hole is respectively connected to the corresponding suction cup air hole through a vent nozzle that passes through the connecting plate, so as to facilitate the disassembly and assembly of the suction cup bracket when changing the product specifications.

8. A corrugated paper tray folding device according to claim 7, characterized in that: Two hollow shafts are symmetrically arranged on both sides of the variable pitch roller shaft on the mounting frame, and a plurality of air pipe joints connected to the inner holes thereof are evenly distributed on the hollow shafts. The air pipe joints correspond one to one with the air holes on the same side and are connected through air pipes so that negative pressure can be externally connected through one end of the hollow shaft to simplify the air path structure.

9. The corrugated paper tray folding device according to claim 1, characterized in that: The ejection rack includes two columns and an ejection plate connected between the two columns. The ejection plate is conical and has a plurality of rectangular notches. Two pins are arranged up and down on the outside of each column. The two ends of the ejection rack are hinged to the ends of the suction cup moving groups on both sides through two connecting rods, and one end of the connecting rod is respectively sleeved on the corresponding pin.

10. A corrugated paper tray folding device according to claim 1 or 2, characterized in that: The mounting frame includes a main frame and two support frames symmetrically fixed on both sides of the main frame. The servo motor is arranged in the middle of the main frame. The variable pitch roller and guide column are arranged on the two support frames. The support frames are respectively fixed to the two arms on both sides of the main frame by clamps and screws to facilitate the adjustment of the position of the variable pitch roller and the suction cup moving group.

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