Paperboard box nailing machine

Abstract

The utility model discloses a paperboard box nailing machine which comprises a paperboard bearing table, a board folding mechanism, a passive correction mechanism, a pushing mechanism and a nailing mechanism, and the paperboard bearing table is used for bearing paperboards; the board folding mechanism is arranged above the paperboard bearing table and comprises a board folding motor, a rotating seat and a cross arm, the rotating seat is connected with the board folding motor, the cross arm is vertically connected with the rotating seat, and a suction cup is arranged on the cross arm; the passive correction mechanism comprises a stainless steel baffle arranged above the paperboard bearing table. The pushing mechanism is located above the board folding mechanism and used for conveying the bent paperboards to the nailing mechanism. And the nailing mechanism is used for nailing and fixing the preset overlapping part of the paperboard. By the adoption of the paper board nailing device, deviation of paper boards in the bending process of the conveying and paper folding mechanism can be corrected, it is guaranteed that the bent folded boards enter the nailing mechanism in a preset track, and the nailing position is accurate and reliable.

Description

Technical Field

[0001] The utility model relates to a carton stapling machine, in particular to a cardboard carton stapling machine. Background Art

[0002] A cardboard carton stapling machine folds both sides of preformed cardboard and staples the overlapping edges of the folded parts to form a carton for packaging. According to the number of cardboard sheets used for a carton, it is divided into a single-sheet cardboard cartoning machine and a double-sheet cardboard cartoning machine. Since the existing folding method mainly uses a belt to clamp one side of the cardboard for bending operation, the transmission and folding processes are likely to cause the cardboard to shift, resulting in inaccurate positions of the folded cardboard entering the stapling mechanism, causing skewed stapling or even staple detachment, and affecting the quality of the box body. The existing method is to monitor manually. When it is found that the cardboard shifts, the cardboard is manually pushed for alignment. The above method consumes manpower and also makes the carton stapling machine unable to truly work fully automatically without human attendance, resulting in high production costs. Content of the Utility Model

[0003] In order to solve the defects of the existing technology, the utility model provides a cardboard carton stapling machine, which can correct the offset of the cardboard generated during the transmission and the folding process of the folding mechanism, ensure that the folded board enters the stapling mechanism along a predetermined trajectory after folding, and the stapling position is accurate and reliable.

[0004] In order to solve the above technical problems, the utility model provides a cardboard carton stapling machine, which includes a cardboard bearing table, a folding mechanism, a passive correction mechanism, a pushing mechanism and a stapling mechanism. The cardboard bearing table is used for placing the cardboard; the folding mechanism is arranged above the cardboard bearing table and includes a folding motor, a rotating seat and a cross arm. The rotating seat is connected to the folding motor, the cross arm is vertically connected to the rotating seat, and a suction cup is arranged on the cross arm; the passive correction mechanism includes a stainless steel baffle arranged above the cardboard bearing table. When the cardboard is folded by the folding mechanism, the bent parts on both sides of the cardboard are in contact with the side surface of the stainless steel baffle; the pushing mechanism is located above the folding mechanism and is used for conveying the folded cardboard to the stapling mechanism; the stapling mechanism is used for stapling and fixing the predetermined overlapping part of the cardboard.

[0005] As an improvement of the above solution, the folding mechanism is arranged on the frame through a width adjustment mechanism. The width adjustment mechanism includes a sliding seat, a slide rail, a lead screw and an adjusting wheel. Two folding mechanisms are symmetrically arranged on both sides of the cardboard advancing direction through the corresponding sliding seats. The sliding seat is arranged on the slide rail and is connected to the lead screw, and the adjusting wheel is arranged at the end of the lead screw.

[0006] As an improvement of the above solution, a V-shaped notch is arranged in the center of the stainless steel baffle.

[0007] As an improvement of the above solution, the stainless-steel baffle is fixedly arranged on the frame through a baffle seat, and the stainless-steel baffle includes a first stainless-steel baffle and a second stainless-steel baffle arranged at a predetermined distance from each other.

[0008] As an improvement of the above solution, the baffle seat has a sliding sleeve, and a sliding rod is also fixedly arranged on the frame. The baffle seat is arranged on the sliding rod through the sliding sleeve and can slide along the sliding rod. The baffle seat is also connected to the sliding seat.

[0009] As an improvement of the above solution, it further includes an active correction mechanism. The active correction mechanism includes a driving cylinder, a rack, a swing arm and a correction rod arranged between the folding plate mechanism and the nailing mechanism; the driving cylinder is connected to the rack, one end of the swing arm is provided with a swing arm gear, and the swing arm gear meshes with the rack; the other end of the swing arm is provided with the correction rod.

[0010] As an improvement of the above solution, a carrying roller is arranged on the cardboard carrying platform; the cardboard carrying platform is connected to the belt roller conveying mechanism.

[0011] As an improvement of the above solution, the nailing mechanism includes a nailing head and a nail supply tray. The nailing head is used for nailing and fixing the passing cardboard, and the nail supply tray is used for supplying nails to the nailing head.

[0012] Implementing the present utility model has the following beneficial effects:

[0013] Adopting the above solution, a passive correction mechanism is added between the cardboard carrying platform and the folding plate mechanism, which can utilize the preset creases of the cardboard to correct the cardboard during the process of the folding mechanism bending the two sides of the cardboard upward. It has good adaptability, accurate and flexible positioning, can correct the offset of the cardboard generated during the transmission and the bending process of the folding mechanism, ensure that the folded plate after bending enters the nailing mechanism along a predetermined trajectory, and the nailing position is accurate and reliable. Description of the Drawings

[0014] Figure 1 is a front structural schematic diagram of a cardboard box nailing machine of the present utility model;

[0015] Figure 2 is Figure 1 an enlarged view of part a of

[0016] Figure 3 is a side structural schematic diagram of a cardboard box nailing machine of the present utility model;

[0017] Figure 4 is a front structural schematic diagram of the passive correction mechanism of the present utility model;

[0018] Figure 5 is a top view structural schematic diagram of the passive correction mechanism of the present utility model;

[0019] Figure 6 It is a schematic diagram of the cooperation state between the passive correction mechanism of the present utility model and a single-piece cardboard;

[0020] Figure 7 It is a schematic diagram of the cooperation state between the passive correction mechanism of the present utility model and a double-piece cardboard;

[0021] Figure 8 It is a schematic structural diagram of the active correction mechanism of the present utility model;

[0022] Figure 9 It is a schematic structural diagram of the active correction mechanism of the present utility model from another perspective. Detailed implementation manners

[0023] To make the objectives, technical solutions and advantages of the present utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings. It is hereby declared that the orientation terms such as upper, lower, left, right, front, rear, inner, outer, etc. that appear or will appear in the text of the present utility model are only based on the accompanying drawings of the present utility model, and they do not specifically limit the present utility model.

[0024] As Figures 1-6 shown, a specific embodiment of the present utility model provides a cardboard box nailing machine, which includes a cardboard bearing table 1, a folding mechanism 2, a passive correction mechanism 3, a pushing mechanism 4 and a nailing mechanism 5. The cardboard bearing table 1 is used for placing the cardboard; the folding mechanism 2 is arranged above the cardboard bearing table 1 and includes a folding motor 21, a rotating seat 22 and a cross arm 23. The rotating seat 22 is connected to the folding motor 21, the cross arm 23 is vertically connected to the rotating seat 22, and a suction cup 24 is arranged on the cross arm 23; the passive correction mechanism 3 includes a stainless steel baffle 31 arranged above the cardboard bearing table 1. When the cardboard is folded by the folding mechanism 2, the bent parts on both sides of the cardboard are in contact with the side surface of the stainless steel baffle 31; the pushing mechanism 4 is located above the folding mechanism 2 and is used for conveying the folded cardboard to the nailing mechanism 5; the nailing mechanism 5 is used for nailing and fixing the predetermined overlapping part of the cardboard. The pushing mechanism 4 includes a pushing cross beam 41, a servo motor screw slide assembly 42 and a pushing top block 43. The pushing cross beam 41 is fixedly arranged above the machine frame, the servo motor screw slide assembly 42 is arranged on the pushing cross beam 41 and is connected to the pushing top block 43. The servo motor screw slide assembly 42 includes a screw slide driven by a servo motor. The servo motor is connected to the screw, and the slide is driven to move along the screw by the rotation of the screw. The slide is connected to the pushing top block 43; when the screw slide pushes the pushing top block 43 to feed forward, the pushing top block 43 is in contact with the rear side of the cardboard and pushes the cardboard forward.

[0025] A bearing roller 11 is provided on the cardboard bearing table 1; the cardboard bearing table 1 is connected to the belt roller conveying mechanism 6. The nailing mechanism 5 includes a nailing head 51 and a nail supply tray 52. The nailing head 51 is used for nailing and fixing the passing cardboard, and the nail supply tray 52 is used for supplying nails to the nailing head 51.

[0026] With the above solution, a passive correction mechanism 3 is added between the cardboard bearing table 1 and the folding plate mechanism 2, which can utilize the preset crease of the cardboard to correct the cardboard during the process of the folding mechanism bending the two sides of the cardboard upward. It has good adaptability, accurate and flexible positioning, can correct the offset of the cardboard generated during the transmission and the bending process of the folding mechanism, ensure that the folded plate enters the nailing mechanism 5 along a predetermined trajectory, and the nailing position is accurate and reliable.

[0027] In order to meet the nailing requirements of cardboard of different specifications, the folding plate mechanism 2 can be arranged on the frame 7 through a width adjustment mechanism 8. The width adjustment mechanism 8 includes a sliding seat 81, a slide rail 82, a lead screw 83 and an adjustment wheel 84. The two folding plate mechanisms 2 are symmetrically arranged on both sides of the cardboard advancing direction through the corresponding sliding seats 81. The sliding seat 81 is arranged on the slide rail 82 and connected to the lead screw 83. The adjustment wheel 84 is arranged at the end of the lead screw 83. By rotating the adjustment wheel 84, the sliding seats 81 can be driven to approach or move away from each other, thereby driving the rotating seats 22 and the cross arms 23 to approach or move away from each other, realizing the adjustment of the folding plate position. For a single-piece cardboard box nailing machine, the adjustment wheel 84 can be rotated manually to adjust the distance between the two folding plate mechanisms 2 before starting the box making, or the adjustment wheel 84 can be connected to a servo motor to realize the automatic rotation of the adjustment wheel. For a double-piece cardboard box nailing machine, the adjustment wheel 84 is fixed to the servo motor. During each box making process, when the two folding plate mechanisms 2 fold the left and right two pieces of cardboard, the servo motor drives the adjustment wheel 84 to rotate, so that the two pieces of cardboard approach each other and form a certain overlapping area, so that the subsequent nailing mechanism 5 can nail the overlapping parts of the two pieces of cardboard to form a complete cardboard box.

[0028] Preferably, a V-shaped notch 311 is provided in the center of the stainless steel baffle 31. The stainless steel baffle 31 is fixedly arranged on the frame 7 through a baffle seat 32. The stainless steel baffle 31 includes a first stainless steel baffle 31a and a second stainless steel baffle 31b arranged at a predetermined distance from each other. The stainless steel baffle 31 is arranged at the rear side of the cardboard. During the folding process, the cardboard is stuck in the V-shaped notch 311, and the folded part wraps the upper area of the V-shaped notch 311 of the stainless steel baffle 31, and the cardboard is self-aligned by the acting force on the stainless steel baffle 31 during the bending process.

[0029] In order to enable the passive correction mechanism 3 to also have the ability to adapt to cardboard of different specifications, the baffle seat 32 is provided with a sliding sleeve 33, and a sliding rod 34 is also fixedly provided on the machine frame 7. The baffle seat 32 is arranged on the sliding rod 34 through the sliding sleeve 33 and can slide along the sliding rod 34. The baffle seat 32 is also connected to the sliding seat 81. The stainless steel baffle 31 is arranged on the baffle seat 32, and the baffle seat 32 can slide along the sliding rod 34. The sliding rod 34 is arranged parallel to the slide rail 82. When the folding mechanism 2 adjusts the width, it will also drive the passive correction mechanism 3 to move, realizing the linkage adjustment of the two mechanisms, streamlining the structure and simplifying the adjustment steps.

[0030] Combined with Figure 8 and Figure 9 , in order to ensure that the cardboard will not shift during the nailing process, the cardboard box nailing machine further includes an active correction mechanism 9. The active correction mechanism 9 includes a driving cylinder 91, a rack 92, a swing arm 93 and a correction rod 94 arranged between the folding mechanism 2 and the nailing mechanism 5. The driving cylinder 91 is connected to the rack 92. One end of the swing arm 93 is provided with a swing arm gear 95, and the swing arm gear 95 meshes with the rack 92. The other end of the swing arm 93 is provided with the correction rod 94. During the process of the cardboard entering the nailing mechanism 5, the driving cylinder 91 retracts, driving the rack 92 to rise, and the swing arms 93 on both sides swing downward synchronously. The correction rod 94 contacts the left and right sides of the cardboard to guide the cardboard correctly. In addition, the active correction mechanism 9 can also control its own swing angle to press the correction rod 94 on the folded cardboard, so that the cardboard on both sides enters the nailing mechanism 5 in a predetermined overlapping state, ensuring the accurate nailing position.

[0031] This box nailing machine is applicable to double-cardboard box nailing and single-cardboard box nailing. Taking the single-cardboard box nailing as an example, the working principle is described as follows:

[0032] First of all, the stacked cardboard is sent to the cardboard bearing table 1 through the belt roller conveying mechanism 6. The rotating seat 22 of the folding mechanism 2 rotates, driving the suction cups 24 on the cross arm 23 to press on both sides of the cardboard. Then the rotating seat 22 rotates in the reverse direction, swinging the two sides of the cardboard upward along the preset crease until the outer edges of the bent parts on both sides of the cardboard begin to overlap; as Figure 6As shown, during the bending process, the rear side of the cardboard 10 is located in the V-shaped notch 311 of the stainless steel baffle 31, and both sides are located on the angle iron guide strip 35. The folded part wraps the upper region of the V-shaped notch 311 of the stainless steel baffle 31, and it is self-aligned by the force exerted on the stainless steel baffle 31 during the bending process. The folded flap is pushed forward by the pushing mechanism 4. Among them, the overlapping region located in the upper part is supported on the first lap edge guide block 53 located above the cardboard, and it will pass through the nailing mechanism 5 for nailing and fixing. During this process, the original part at the bottom of the cardboard will pass under the nailing mechanism 5. Before nailing, the driving cylinder 91 of the active alignment mechanism 9 retracts, driving the rack 92 to rise, and the swing arms 93 on both sides swing downward synchronously. The alignment rod 94 contacts the left and right sides of the cardboard to align the cardboard.

[0033] In addition, as combined with Figure 7 shown, for double-sided cardboard, if the cardboard 10 on both sides is lapped on the second lap edge guide block 54 after bending, the second lap edge guide block 54 has an upper guide groove 541 and a lower guide groove 542, so as to overlap the upper and lower parts of the left and right cardboard pieces correspondingly and feed them into the nailing mechanism 5 for separate nailing and fixing to form a circular cardboard.

[0034] The above is the preferred embodiment of the present utility model. It should be pointed out that for those of ordinary skill in the art of this technology, without departing from the principle of the present invention, several improvements and refinements can still be made, and these improvements and refinements are also regarded as the protection scope of the present utility model.

Claims

1. A cardboard box stitching machine, characterized in that: It includes a cardboard carrying platform, a folding mechanism, a passive correction mechanism, a pushing mechanism and a nailing mechanism. The paperboard carrying platform is used for carrying paperboards; The folding plate mechanism is arranged above the paperboard bearing platform, and comprises a folding plate motor, a rotating seat and a cross arm, wherein the rotating seat is connected to the folding plate motor, the cross arm is vertically connected to the rotating seat, and a suction cup is arranged on the cross arm; The passive correction mechanism includes a stainless steel baffle plate disposed above the paperboard carrying platform. When the paperboard is folded by the folding mechanism, the bent parts on both sides of the paperboard abut against the side surfaces of the stainless steel baffle plate. The pushing mechanism is located above the folding mechanism and is used to transport the folded cardboard to the stapling mechanism; The nailing mechanism is used to nail and fix the predetermined overlapping parts of the paperboard.

2. The cardboard box stitching machine according to claim 1, characterized in that: The folding plate mechanism is arranged on the frame through the width adjustment mechanism, and the width adjustment mechanism includes a sliding seat, a slide rail, a screw rod and an adjusting wheel. The two folding plate mechanisms are symmetrically arranged on both sides of the cardboard forward direction through the corresponding sliding seats. The sliding seat is arranged on the slide rail and connected to the screw rod, and the adjusting wheel is arranged at the end of the screw rod.

3. The cardboard box stitching machine according to claim 1, characterized in that: A V-shaped notch is arranged in the center of the stainless steel baffle.

4. The cardboard box stitching machine according to claim 2, characterized in that: The stainless steel baffle is fixed on the frame through a baffle seat, and the stainless steel baffle comprises a first stainless steel baffle and a second stainless steel baffle arranged at a predetermined distance from each other.

5. The cardboard box stitching machine according to claim 4, characterized in that: The baffle seat has a sliding sleeve, and a sliding rod is fixedly provided on the frame. The baffle seat is arranged on the sliding rod through the sliding sleeve and can slide along the sliding rod. The baffle seat is also connected to the sliding seat.

6. The cardboard box stitching machine according to claim 1, characterized in that: It also includes an active correction mechanism, which includes a driving cylinder, a rack, a swing arm and a correction rod arranged between the folding mechanism and the nailing mechanism; the driving cylinder is connected to the rack, one end of the swing arm is provided with a swing arm gear, and the swing arm gear is meshed with the rack; the other end of the swing arm is provided with the correction rod.

7. The cardboard box stitching machine according to claim 1, characterized in that: The paperboard bearing platform is provided with a bearing roller; the paperboard bearing platform is connected to a belt roller conveying mechanism.

8. The cardboard box stitching machine according to claim 1, characterized in that: The nailing mechanism comprises a nailing head and a nail supplying plate. The nailing head is used for nailing and fixing the cardboard passing through, and the nail supplying plate is used for supplying nails to the nailing head.

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