Automatic feeding mechanism for small paperboards

Abstract

The utility model discloses an automatic small paperboard feeding mechanism which comprises a machine frame, a discharging conveying line arranged on the machine frame and a stock bin located on the discharging conveying line, a feeding port formed in the stock bin, a discharging port formed in the bottom of the stock bin, a bearing piece capable of bearing the edge of a paperboard and a material taking mechanism arranged below the stock bin. The material taking mechanism comprises a lifting frame capable of stretching into the discharging port, a vacuum suction cup arranged on the lifting frame and a material taking driver capable of driving the lifting frame to move up and down. After the lifting frame upwards stretches into the feeding port of the stock bin, the vacuum suction cup can suck the paperboards on the lowest layer, then the lifting frame drives the vacuum suction cup to move downwards, and the paperboards on the lowest layer can be taken down, placed on the discharging conveying line and finally sent out through the discharging conveying line. By adopting the feeding mode, the paperboards can be automatically fed one by one, automatic production of gift boxes is facilitated, and the labor cost is reduced.

Description

TECHNICAL FIELD

[0001] The utility model relates to the production technical field of gift box especially relates to a small paperboard automatic feeding mechanism. BACKGROUND

[0002] In the production process of the gift box, in addition to the large paperboard used for folding into the main body of the gift box, the small paperboard used for reinforcing the bottom of the gift box or used for making the inner liner in the gift box is also needed. In the prior art, after the large paperboard and the small paperboard are both produced and formed, the large paperboard and the small paperboard are generally taken out one by one in a manual way, and they are assembled together to form a gift box, so that the labor cost is high. SUMMARY

[0003] In view of this, the utility model aims at providing a small paperboard automatic feeding mechanism.

[0004] The utility model discloses a technical scheme that is adopted to solve the technical problems is as follows:

[0005] A small paperboard automatic feeding mechanism, including the frame, be provided with the discharge conveying line and be located the discharge conveying line above the stock bin on the frame, be provided with the inlet on the stock bin, the bottom of stock bin is provided with the discharge port, be provided with the edge of the edge of the stock bin and can support the supporting piece, be provided with the material taking mechanism below the stock bin, the material taking mechanism includes the lifting frame that can enter the discharge port, be provided with the vacuum chuck on the lifting frame and the material taking driver that can drive the lifting frame moves up and down.

[0006] In a preferred scheme of the utility model, the lifting frame has a reference element, the frame is provided with a feedback switch system capable of detecting the motion state of the reference element, the air passage of the vacuum chuck has a valve, when the reference element moves upward, the feedback switch system opens the valve, when the reference element moves downward, the feedback switch system closes the valve.

[0007] In a preferred scheme of the utility model, the frame is provided with a fixed plate, the fixed plate is provided with a vertical guide sleeve, the lifting frame includes a vertical guide column in sliding fit with the vertical guide sleeve, and a lifting seat fixed to the upper end of the vertical guide column, the vacuum chuck is arranged on the lifting seat and the upper end of the vacuum chuck protrudes from the upper surface of the lifting seat, the reference element is fixed to a vertical guide column, and the feedback switch system includes a central control unit and a travel switch below the reference element, the travel switch and the valve are connected with the central control unit.

[0008] In a preferred scheme of the utility model, the quantity of the supporting pieces is two, the left side wall and the right side wall of the lower part of the stock bin are provided with mounting holes, two supporting pieces are installed in two mounting holes respectively, the supporting piece is provided with a supporting edge which extends into the interior of the stock bin and is used for supporting the paperboard.

[0009] In a preferred scheme of the utility model, the supporting piece is installed in the mounting hole and can move left and right, the stock bin or the rack is provided with a manual adjusting mechanism which can adjust the left and right positions of the supporting piece.

[0010] In a preferred scheme of the utility model, the manual adjusting mechanism comprises a vertical plate which is fixed relative to the stock bin, an adjusting screw rod which is rotatably installed on the vertical plate, the supporting piece is provided with a screw hole which is engaged with the first end of the adjusting screw rod, and the end of the adjusting screw rod is provided with a knob.

[0011] In a preferred scheme of the utility model, the vertical plate is provided with a through hole, the adjusting screw rod penetrates the through hole and is rotatably matched with the inner side wall of the through hole, the knob is located on the outside of the vertical plate, and the screw rod is provided with a clamping spring which abuts against the inner side of the vertical plate.

[0012] In a preferred scheme of the utility model, the discharging conveying line comprises two groups of conveying belt assemblies which are arranged left and right, and a driving device which can drive the two groups of conveying belt assemblies to operate synchronously, and the space between the two groups of conveying belt assemblies is left for the lifting frame to pass through.

[0013] In a preferred scheme of the utility model, the front part of the rack is provided with a driving shaft, the rear part of the rack is provided with a driven shaft, the conveying belt assembly comprises a first pulley which is sleeved on the driving shaft, a second pulley which is sleeved on the driven shaft, and a conveying belt which connects the first pulley and the second pulley.

[0014] The utility model discloses a mechanism, after starting, the lifting frame extends into the discharging port of the stock bin, at this time, the vacuum chuck holds the paperboard of the lowermost layer, then the lifting frame moves down with the vacuum chuck, namely, the paperboard of the lowermost layer can be taken down and put on the discharging conveying line, finally, the discharging conveying line sends out. BRIEF DESCRIPTION OF DRAWINGS

[0015] Figure 1 It is the stereogram of the utility model working state.

[0016] Figure 2 It is one of the utility model working state's sectional view.

[0017] Figure 3is the second section view of the working state of the utility model;

[0018] Figure 4 is Figure 3 is the enlarged view of part A in the middle;

[0019] Figure 5 is the perspective view of the taking mechanism;

[0020] Figure 6 is a kind of vacuumizing principle diagram of vacuum chuck. DETAILED DESCRIPTION

[0021] The technical scheme of the utility model will be described clearly and completely in conjunction with the drawings.

[0022] It should be noted that all directional indications (such as up, down, left, right, front, back, etc.) in the utility model are only used to explain the relative positional relationship, movement condition, etc. between components in a certain specific posture (as shown in the drawings), and if the specific posture changes, the directional indications will also change accordingly. In addition, the description of "preferred", "second preferred" and the like in the utility model is only for description purposes, and cannot be understood as indicating or implying the relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features with "preferred", "second preferred" can be explicitly or implicitly included at least one of the features.

[0023] Referring to Figures 1 to 5 , the utility model proposes a kind of small paperboard automatic feeding mechanism, including rack 1, discharge conveying line and the bin 2 located on discharge conveying line are arranged on rack 1, the upper end of bin 2 is provided with inlet 201, the bottom of bin 2 is provided with discharge port 202, bin 2 is provided with the edge of the edge of paperboard 3 that can be supported by supporting piece 4, taking mechanism is provided below bin 2, and taking mechanism includes lift frame 51 that can be inserted into discharge port 202, vacuum chuck 52 is arranged on lift frame 51, and taking driver 53 that can drive lift frame 51 to move up and down.

[0024] The taking driver 53 can be a pneumatic cylinder, an electric motor, wherein the pneumatic cylinder is the best. Referring to Figure 6 , the air passage 56 of vacuum chuck 52 can be connected with vacuum tank 57 inside factory, the vacuum tank 57 is connected with vacuum pump 58 capable of being vacuumized, the air passage 56 of vacuum chuck 52 has a valve 55, and the valve 55 is preferably solenoid valve.

[0025] The automatic feeding principle of the mechanism is that first, the paperboards 3 are stacked in the hopper 2, and the lowermost paperboard 3 is supported on the two supporting members 4, after the mechanism is started, the lifting frame 51 extends into the discharge port 202 of the hopper 2 upward, at this time, the vacuum suction cup 52 sucks the lowermost paperboard 3, then the lifting frame 51 moves downward with the vacuum suction cup 52, that is, the lowermost paperboard 3 can be taken down and placed on the discharge conveying line, and finally, the paperboard 3 is sent out by the discharge conveying line. In this way, the paperboards 3 can be automatically and individually fed, which is beneficial to realize the automatic production of the gift box and reduces the labor cost.

[0026] In a preferred scheme of the present application, the discharge conveying line comprises two groups of conveying belt assemblies arranged left and right, and a driving device capable of driving the two groups of conveying belt assemblies to run synchronously, and a space is left between the two groups of conveying belt assemblies for the lifting frame 51 to pass through. The front part of the rack 1 is provided with a driving shaft 82, and the rear part of the rack 1 is provided with a driven shaft 83, the conveying belt assembly comprises a first pulley 84 sleeved on the driving shaft 82, a second pulley 85 sleeved on the driven shaft 83, and a conveying belt 86 connecting the first pulley 84 and the second pulley 85. The driving device comprises a motor 81, and the output shaft of the motor 81 is connected with the driving shaft 82 through a belt transmission mechanism. Specifically, the belt transmission mechanism comprises a third pulley 87 sleeved on the output shaft of the motor, a fourth pulley 88 sleeved on the driving shaft 82, and a transmission belt 89 connected between the third pulley 87 and the fourth pulley 88.

[0027] In a preferred scheme of the present application, the lifting frame 51 is provided with a reference member 54, the rack 1 is provided with a feedback switch system capable of detecting the movement state of the reference member 54, the air passage 56 of the vacuum suction cup 52 is provided with a valve 55, when the reference member 54 moves upward, the feedback switch system opens the valve 55, at this time, the vacuum suction cup 52 has suction force and can suck the paperboard 3 above. When the reference member 54 moves downward, the lowermost paperboard 3 can be grabbed, then the feedback switch system closes the valve 55 of the vacuum suction cup 52, at this time, the vacuum suction cup 52 loses suction force, when the upper surface of the vacuum suction cup 52 is lower than the upper surface of the conveying belt 86, the paperboard 3 is successfully placed on the conveying belt 86, after the conveying belt 86 sends out the paperboard 3, the vacuum suction cup 52 and the lifting frame 51 are lifted upward to grab the next paperboard 3.

[0028] Preferably, the frame 1 is provided with a fixing plate 11, the fixing plate 11 is provided with a vertical guide sleeve 12, the lifting frame 51 comprises a vertical guide column 512 in sliding fit with the vertical guide sleeve 12 and a lifting seat 511 fixed at the upper end of the vertical guide column 512, and the vacuum chuck 52 is arranged on the lifting seat 511 and the upper end of the vacuum chuck 52 protrudes from the upper surface of the lifting seat 511. The reference element 54 is fixed on one vertical guide column 512, the feedback switch system comprises a central control unit and a travel switch 59 located below the reference element 54, the travel switch 59 and the valve 55 are connected with the central control unit, and the central control unit is generally a chip integrated on a PCB. When the reference element 54 moves downward and touches the travel switch 59, the feedback switch system closes the valve 55. When the reference element 54 moves upward and separates from the travel switch 59, the feedback switch system opens the valve 55.

[0029] The taking mechanism can also have the following schemes for placing the paperboard 3 on the discharge conveying line after taking the paperboard 3 from the stock bin 2: 1. According to the program setting, the valve 55 of the vacuum chuck 52 is opened or closed according to a certain period, for example, every 10 seconds as a period, the lifting frame 51 is lifted to a certain height, and the valve 55 of the vacuum chuck 52 is just opened, and the lifting frame 51 is lowered to a certain height, and the valve 55 of the vacuum chuck 52 is just closed. 2. The air duct 56 of the vacuum chuck 52 is directly connected with a vacuum pump 58, and the vacuum pump 58 is opened or closed according to a certain period, for example, every 10 seconds as a period, the lifting frame 51 is lifted to a certain height, and the vacuum pump 58 is opened, and the lifting frame 51 is lowered to a certain height, and the vacuum pump 58 is closed.

[0030] Preferably, the number of the supporting elements 4 is two, the left side wall and the right side wall of the lower part of the stock bin 2 are provided with mounting holes 203, and the two supporting elements 4 are respectively mounted in the two mounting holes 203. The supporting element 4 has a supporting edge 41 extending into the interior of the stock bin 2 and used for supporting the paperboard 3.

[0031] Further, the supporting element 4 is movably mounted in the mounting hole 203, and the stock bin 2 or the frame 1 is provided with a manual adjusting mechanism capable of adjusting the left-right position of the supporting element 4. For the paperboards 3 with different rigidities, the left-right position of the supporting element 4 needs to be adjusted, so that the supporting element 4 can support the paperboard 3, and when the chuck grasps the lowermost paperboard 3, the paperboard 3 can be elastically deformed to be taken out from the lower end of the stock bin 2.

[0032] In the preferred scheme of the utility model, the manual adjusting mechanism comprises a vertical plate 71 fixed relative to the bin 2, an adjusting screw 72 rotatably installed on the vertical plate 71, the supporting piece 4 is provided with a screw hole engaged with the first end of the adjusting screw 72, and the tail end of the adjusting screw 72 is provided with a knob 721. The vertical plate 71 is provided with a through hole, the adjusting screw 72 penetrates through the through hole and is rotatably matched with the inner side wall of the through hole, and the knob 721 is located at the outer side of the vertical plate 71. In order to avoid axial stringing when the screw rotates, a clamping spring 73 is sleeved on the screw, or a nut is sleeved on the screw and is screwed with the screw itself, and the clamping spring 73 or the nut abuts against the inner side of the vertical plate 71.

[0033] The above is only the preferred embodiment of the utility model, and does not limit the patent range of the utility model, and any equivalent structural transformation, direct or indirect application in other related technical fields under the utility model concept of the utility model, and the contents of the utility model specification and the drawings are included in the patent protection range of the utility model.

Claims

1. A small paperboard automatic feeding mechanism characterized by, The application relates to a paperboard conveying device, which comprises a rack (1) provided with an outfeed conveying line and a hopper (2) above the outfeed conveying line, the hopper (2) is provided with an infeed opening (201), the bottom of the hopper (2) is provided with an outfeed opening (202), the hopper (2) is provided with a supporting piece (4) capable of supporting the edges of a paperboard (3), and a material taking mechanism is arranged below the hopper (2), the material taking mechanism comprises a lifting frame (51) capable of extending into the outfeed opening (202), a vacuum chuck (52) arranged on the lifting frame (51), and a material taking driver (53) capable of driving the lifting frame (51) to move up and down.

2. A small paperboard automatic feeding mechanism according to claim 1, characterized in that, The lifting frame (51) is provided with a reference piece (54), the rack (1) is provided with a feedback switch system capable of detecting the movement state of the reference piece (54), the air channel (56) of the vacuum chuck (52) is provided with a valve (55), when the reference piece (54) moves upwards, the feedback switch system opens the valve (55), and when the reference piece (54) moves downwards, the feedback switch system closes the valve (55).

3. A small paperboard automatic feeding mechanism according to claim 2, characterized in that, The rack (1) is provided with a fixing plate (11), the fixing plate (11) is provided with a vertical guide sleeve (12), the lifting frame (51) comprises a vertical guide column (512) in sliding fit with the vertical guide sleeve (12) and a lifting seat (511) fixed to the upper end of the vertical guide column (512), the vacuum chuck (52) is arranged on the lifting seat (511) and the upper end of the vacuum chuck (52) protrudes from the upper surface of the lifting seat (511), the reference piece (54) is fixed to one vertical guide column (512), and the feedback switch system comprises a central control unit and a travel switch (59) below the reference piece (54), the travel switch (59) and the valve (55) are connected with the central control unit.

4. The automatic small paperboard feeding mechanism according to claim 1, wherein, The number of the supporting pieces (4) is two, the left side wall and the right side wall of the lower part of the hopper (2) are provided with mounting holes (203), and the two supporting pieces (4) are respectively arranged in the two mounting holes (203), and the supporting piece (4) is provided with a supporting edge (41) extending into the interior of the hopper (2) and used for supporting the paperboard (3).

5. A small paper sheet automatic feeding mechanism according to claim 4, wherein The supporting piece (4) is movably arranged in the mounting hole (203), and the hopper (2) or the rack (1) is provided with a manual adjusting mechanism capable of adjusting the left-right position of the supporting piece (4).

6. A small paper sheet automatic feeding mechanism according to claim 5, wherein The manual adjusting mechanism comprises a vertical plate (71) fixed relative to the hopper (2) and an adjusting screw (72) rotatably arranged on the vertical plate (71), the supporting piece (4) is provided with a screw hole engaged with the first end of the adjusting screw (72), and the tail end of the adjusting screw (72) is provided with a knob (721).

7. A small paper sheet automatic feeding mechanism according to claim 6, wherein The vertical plate (71) is provided with a through hole, the adjusting screw rod (72) penetrates through the through hole and is in rotation fit with the inner side wall of the through hole, the knob (721) is located at the outer side of the vertical plate (71), and the screw rod is sleeved with a clamping spring (73) abutting against the inner side of the vertical plate (71).

8. A small paper sheet automatic feeding mechanism according to claim 1, wherein The discharge conveying line comprises two groups of conveying belt assemblies arranged left and right, and a driving device capable of driving the two groups of conveying belt assemblies to run synchronously, and a space is left between the two groups of conveying belt assemblies for the lifting frame (51) to pass through.

9. A small paper sheet automatic feeding mechanism according to claim 8, wherein The front part of the rack (1) is provided with a driving shaft (82), the rear part of the rack (1) is provided with a driven shaft (83), the conveying belt assembly comprises a first pulley (84) sleeved on the driving shaft (82), a second pulley (85) sleeved on the driven shaft (83), and a conveying belt (86) connecting the first pulley (84) and the second pulley (85).

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