Automatic plate turning hot melting welding machine

Abstract

The invention provides an automatic turning plate hot melting welding machine which comprises a rack, a welding platform is arranged in the rack, and a pressure device matched with the welding platform is arranged at the top of the rack; the turnover plates are provided with through grooves capable of containing box plates, symmetrically arranged on the two sides of the welding platform and rotationally connected, clamping air cylinders are arranged on the outer sides of the turnover plates, and the driving ends of the clamping air cylinders extend into the through grooves and are provided with clamping plates; the left turning plate mechanism and the right turning plate mechanism are respectively used for rotating corresponding turning plates, so that the clamped box plate reaches a hot melting / welding position; the bearing device is located below the welding platform and used for supporting the boxboard; and the heating device is arranged at the top of the rack and provided with a telescopic heating end, and after the boxboards are overturned in place, the heating end extends to the hot melting position and heats the surrounding position of the boxboards on the two sides. According to the inclined rib hollow plate plastic box forming device, encircling and hot melting welding of two plates can be automatically completed, two times of hot melting welding can be rapidly completed only by adjusting the upper and lower positions of the box plates, and the box forming efficiency of inclined rib hollow plate plastic boxes is greatly improved.

Description

Technical Field

[0001] The invention relates to the technical field of automatic welding equipment, in particular to an automatic panel turning hot-melt welding machine. Background Art

[0002] When making a plastic box with hollow board, the main steps include: extrusion and cutting of the board, hot pressing of the board, edge trimming and sealing, and hot melt welding of the enclosure. After edge trimming and sealing, the conventional hollow board plastic box forms an unfolded structure that can be folded and closed into a rectangular space. The two ends of this unfolded structure are enclosed and hot melt welded to form the main body of the plastic box.

[0003] The existing hot-melt welding machine can complete the enclosed welding of hollow plate plastic boxes of conventional size, but if you want to prepare a hollow plate plastic box with oblique ribs, you need to reserve more plates when cutting, which makes the plate size too large and cannot be processed with existing equipment in subsequent steps. In order to deal with this situation, our company divides the structure of the oblique rib hollow plate plastic box into two parts, each of which includes two surfaces of the box body, and the two cut plates are hot-pressed separately. This can reduce the reserved plates when cutting, reduce waste, and effectively control the molding size. The hot-pressing molding and trimming and edge sealing can be completed using existing equipment. The disadvantage is that the two parts need to be hot-melt welded twice to enclose them into a whole.

[0004] The existing equipment cannot effectively complete the hot melt welding on both sides, so it is necessary to improve the existing technology. Summary of the invention

[0005] The present invention provides an automatic panel turning hot-melt welding machine to solve the above problems.

[0006] A technical solution adopted by the present invention is to provide an automatic panel-turning hot-melt welding machine, comprising:

[0007] The frame is provided with a welding platform inside and a pressure device matched with the welding platform on the top for pressing the hot-melt area of ​​the box board;

[0008] A pair of flaps, having through slots for placing box panels and symmetrically arranged on both sides of the welding platform, the inner side of the flap is rotatably connected to the side of the welding platform through a first connecting piece, and a clamping cylinder is arranged on the outer side of the flap, the driving end of the clamping cylinder extends into the through slot and is provided with a clamping plate for clamping the box panel placed in the through slot;

[0009] The left flap mechanism includes an elevation cylinder and a left flap cylinder connected at the fixed end. The driving end of the left flap cylinder is rotatably connected to the outer side of the corresponding flap through a second connecting piece. The driving end of the elevation cylinder is rotatably connected to the left side of the frame through a third connecting piece. The clamped box plate can be flipped to the welding position and tilted up to a certain angle.

[0010] The right flap mechanism comprises a right flap cylinder, the driving end of which is rotatably connected to the outer side of the corresponding flap through a fourth connecting piece, and the fixed end is rotatably connected to the right side of the frame through a fifth connecting piece, so as to flip the clamped box plate to the welding position;

[0011] The supporting device is located under the welding platform and is used to support the box board;

[0012] The heating device is arranged on the top of the frame and has a retractable heating end. When the box board is flipped into place, the heating end extends to the hot melting position and heats the enclosed area of ​​the box boards on both sides.

[0013] Furthermore, the pressure device includes a pressure cylinder and a pressure plate. The pressure cylinder is fixed on the top of the frame, and the pressure plate is arranged at the driving end of the pressure cylinder. After the enclosed area of ​​the box plate is heated, the heating end of the heating device retracts, and the pressure cylinder drives the pressure plate downward to complete the welding.

[0014] Furthermore, the welding platform is also provided with an embedding groove, in which a welding mold is placed. The welding mold has a V-shaped notch, which cooperates with the pressing plate to make the welding position more secure.

[0015] Furthermore, it also includes a pair of push plates, which are symmetrically arranged on both sides of the pressure device and located above the corresponding flaps. The push plates are connected to the top of the frame through an alignment cylinder. When driven by the alignment cylinder, the upper end of the box plate is pushed downward to align the box plates on both sides, thereby facilitating the positioning of the box plates.

[0016] Furthermore, a guide plate extending downward is provided on the flap to guide the box plate.

[0017] Furthermore, the supporting device includes a plurality of guide columns and a support plate mounted on the guide columns. A spring is mounted on the guide columns below the support plate. When the push plate is pressed down and aligned with the box plate, the support plate can adapt to avoid damaging the box plate.

[0018] Furthermore, the heating device also includes an adjustable bracket, the upper end of the adjustable bracket is connected to the top of the frame, and the lower end is provided with a lamp tube cylinder. The driving end of the lamp tube cylinder points to the hot melt position, and the heating end uses a lamp tube, which is connected to the driving end of the lamp tube cylinder through a group of clamps.

[0019] Furthermore, a pair of waist holes are provided at the upper end of the adjustable bracket, and the waist holes are locked with bolts to fix the adjustable bracket to the top of the frame.

[0020] The beneficial effects of the automatic panel-turning hot-melt welding machine of the present invention are:

[0021] 1. Design a pair of flaps to place and clamp the box panels and complete the flipping through the corresponding flap mechanism, which can automatically complete the enclosure of the two panels, and then perform hot-melt and press-fit at the enclosure to quickly achieve hot-melt welding of the diagonal rib hollow panels;

[0022] 2. After the hot-melt welding of one side of the two boards is completed, you only need to adjust the upper and lower positions of the box boards to perform hot-melt welding on the other side, which greatly improves the box-making efficiency of the diagonal rib hollow board plastic box. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 It is a front view of an automatic panel-turning hot-melt welding machine according to the first embodiment of the present invention;

[0024] Figure 2 It is a side view of an automatic panel-turning hot-melt welding machine according to the first embodiment of the present invention;

[0025] Figure 3 is a top view of the connection structure between the welding platform and the flap in the first embodiment of the present invention;

[0026] Figure 4 is a front view of a heating device in a first embodiment of the present invention;

[0027] The components in the accompanying drawings are marked as follows: 1. Frame, 2. Welding platform, 3. Pressure device, 4. Flap, 5. Left flap cylinder, 6. Elevation cylinder, 7. Right flap cylinder, 8. Support device, 9. Heating device, 11. Alignment cylinder, 12. Push plate, 31. Pressure cylinder, 32. Press plate, 41. Through groove, 42. First connecting piece, 43. Clamping cylinder, 44. Clamping plate, 45. Guide plate, 51. Second connecting piece, 61. Third connecting piece, 71. Fourth connecting piece, 72. Fifth connecting piece, 81. Guide column, 82. Support plate, 91. Adjustable bracket, 92. Lamp tube cylinder, 93. Lamp tube. DETAILED DESCRIPTION

[0028] The preferred embodiments of the present invention are described in detail below in conjunction with the accompanying drawings so that the advantages and features of the present invention can be more easily understood by those skilled in the art, thereby making a clearer and more definite definition of the protection scope of the present invention.

[0029] In the description of the present invention, it should be understood that the terms "up", "down", "left", "right", "front", "back", "horizontal", "vertical", "inside", "outside", etc., indicating directions or positional relationships, are based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention. They cannot indicate or imply that the components or elements referred to must have a specific direction, be constructed and operated in a specific direction, and therefore cannot be understood as limiting the present invention.

[0030] See also Figures 1 to 4 The first embodiment of the present invention provides an automatic panel turning hot-melt welding machine, comprising:

[0031] The frame 1 has an open front and is provided with a welding platform 2 inside. The welding platform 2 cooperates with a pressure device 3 provided on the top of the frame 1 to complete the pressing of the hot-melt area of ​​the box plate;

[0032] Welding platform 2, one end of the welding platform 2 is fixed to the back plate of the frame 1, and the other end can be connected to the top of the frame 1 through a hanging device, so that the welding platform 2 is more stable. An embedding groove is provided on the welding platform 2. Different welding molds can be placed in the embedding groove according to the specific requirements of the welding interface. The upper surface of the welding mold has a V-shaped or W-shaped notch, which cooperates with the pressure plate to produce an indentation at the welding position, making it more secure;

[0033] A pair of flaps 4, having through slots 41 for placing box panels and symmetrically arranged on both sides of the welding platform 2, the welding platform 2 also has a connecting frame extending to both sides, a rotatable first connecting member 42 is arranged at the end of the connecting frame, the inner side of the flap 4 is fixed to the first connecting member 42 and rotatably arranged on the side of the welding platform 2, and a clamping cylinder 43 is also arranged on the outer side of the flap 4, the driving end of the clamping cylinder 43 penetrates one side of the flap 4 and extends into the through slot 41 and is provided with a clamping plate 44 for clamping the box panel placed in the through slot 41;

[0034] The left flap mechanism includes an elevation cylinder 6 and a left flap cylinder 5 connected at the fixed end, which is equivalent to two cylinders arranged back to back, wherein the driving end of the left flap cylinder 5 is rotatably connected to the outer side of the left flap through the second connecting member 51, and the driving end of the elevation cylinder 6 is rotatably connected to the left side of the frame 1 through the third connecting member 61, so that the clamped box plate can be flipped to the welding position and tilted up to a certain angle;

[0035] The right flap mechanism includes a right flap cylinder 7, the driving end of which is rotatably connected to the outer side of the right flap through a fourth connecting piece 71, and the fixed end is rotatably connected to the right side of the frame 1 through a fifth connecting piece 72, so that the clamped box plate can be flipped to the welding position. It only needs to flip the left box plate and tilt it up to a certain angle to provide a hot-melting space for the box plate enclosed;

[0036] The supporting device 8 is located below the welding platform 2 and is used to support the box plate;

[0037] A pair of push plates 12 are symmetrically arranged on both sides of the pressure device 3 and located above the corresponding flaps. The push plates 12 are connected to the top of the frame 1 through the alignment cylinder 11. The push plates 12 push the upper ends of the box plates downward under the drive of the alignment cylinder 11 to align the box plates on both sides, which is convenient for positioning the box plates.

[0038] The heating device 9 is arranged on the top of the frame 1, and includes an adjustable bracket 91, a lamp tube cylinder 92 and a heating end. The upper end of the adjustable bracket 91 is connected to the top of the frame 1, and the lamp tube cylinder 92 is arranged at the lower end of the adjustable bracket 91 and is arranged obliquely downward. The heating end adopts a lamp tube 93, which is connected to the driving end of the lamp tube cylinder 92 through a group of clamps. When the box board is flipped into place, the heating end extends to the hot melting position and heats the enclosed area of ​​the box boards on both sides.

[0039] Specifically, the pressure device 3 includes a pressure cylinder 31 and a pressure plate 32. The pressure cylinder 31 is fixed on the top of the frame 1, and the pressure plate 32 is arranged at the driving end of the pressure cylinder 31. After the enclosed area of ​​the box plate is heated, the heating end of the heating device 9 retracts, and the pressure cylinder 31 drives the pressure plate 32 downward to complete the welding.

[0040] Specifically, a pair of waist holes are provided at the upper end of the adjustable bracket 91, and the waist holes are locked by bolts to fix the adjustable bracket 91 to the top of the frame 1. A waist hole is also provided on the clamping piece, and the waist hole is locked by bolts to fix the clamping piece to the driving end of the lamp tube cylinder 92, and the bracket height and lamp tube position can be adjusted as needed.

[0041] In order to avoid deformation of the box board due to inaccurate plate position during the alignment process, the following settings are also required:

[0042] A guide plate 45 extending downward is also provided on the flap to play a supporting and guiding role when placing the box board;

[0043] The push plate 12 is also provided with an adjusting cylinder and an adjusting connecting piece. The adjusting cylinder is arranged horizontally, and the L-shaped adjusting connecting piece is arranged at the driving end of the adjusting cylinder. When the push plate 12 moves downward to align the box plate, the adjusting connecting piece moves from the outside to the inside to push the upper end of the box plate straight.

[0044] The supporting device 8 is configured as an adaptive structure, including four guide columns 81 and a support plate 82 sleeved on the guide columns 81. A spring is sleeved on the guide columns 81 below the support plate 82. When the push plate 12 is pressed down and aligned with the box plate, the support plate 82 is naturally moved downward by the force to avoid damage to the box plate.

[0045] Specifically, a larger V-shaped groove is provided on the support plate 82. After the first hot-melt welding of the two box plates is completed, the welded part is turned over and placed in the V-shaped groove, which can achieve rapid positioning and improve the efficiency of the two hot-melt weldings.

[0046] The working principle of an automatic panel-turning hot-melt welding machine of the present invention is:

[0047] Place the two pieces of box boards into the corresponding through slots, with the bottoms falling into the V-shaped grooves of the pallet, and start the hot melt welding machine;

[0048] The alignment cylinder drives the push plate downward, and the adjustment cylinder drives the adjustment connecting piece inward to push the upper end of the box plate to the alignment position;

[0049] The clamping cylinder drives the clamping plate to clamp the box plates on both sides, and the alignment cylinder and the adjustment cylinder are reset;

[0050] The left and right flap mechanisms rotate the flaps to the preset positions (the left side is tilted upward by 30 degrees, and the right side is horizontal);

[0051] The lamp cylinder drives the lamp into the hot melt position for baking, and returns after baking for 8 seconds;

[0052] The elevation cylinder drives the left box plate to the preset position (left side horizontal), at which time the box plates overlap at the encircling parts and the hot-melt areas are bonded;

[0053] The pressure cylinder drives the pressing plate downward to pressurize the hot melt area and bond it, and then returns after 2 seconds.

[0054] The clamping cylinder is reset, the box board is taken out, and the left and right flap cylinders are reset;

[0055] Turn over the box board and place the welding point into the V-shaped groove, push the upper end into the corresponding through slot, repeat the corresponding steps to complete the hot melt welding on the other side, and take out the finished box.

[0056] The beneficial effects of the automatic panel-turning hot-melt welding machine of the present invention are:

[0057] 1. Design a pair of flaps to place and clamp the box panels and complete the flipping through the corresponding flap mechanism, which can automatically complete the enclosure of the two panels, and then perform hot-melt and press-fit at the enclosure to quickly achieve hot-melt welding of the diagonal rib hollow panels;

[0058] 2. After the hot-melt welding of one side of the two boards is completed, you only need to adjust the upper and lower positions of the box boards to perform hot-melt welding on the other side, which greatly improves the box-making efficiency of the diagonal rib hollow board plastic box;

[0059] 3. Adjustable connecting pieces are set for the push plate and the auxiliary push plate to push and align the upper end of the box plate. The adaptive support plate design can prevent the box plate from being deformed or damaged during alignment, thus ensuring the accuracy of hot-melt welding.

[0060] The above descriptions are merely embodiments of the present invention and are not intended to limit the patent scope of the present invention. Any equivalent structure or equivalent process transformation made using the contents of the present invention specification and drawings, or directly or indirectly applied in other related technical fields, are also included in the patent protection scope of the present invention.

Claims

1. An automatic panel-turning hot-melt welding machine, characterized in that: include: The frame is provided with a welding platform inside and a pressure device matched with the welding platform on the top for pressing the hot-melt area of ​​the box board; A pair of flaps, having through slots for placing box panels and symmetrically arranged on both sides of the welding platform, the inner side of the flap is rotatably connected to the side of the welding platform through a first connecting piece, and a clamping cylinder is arranged on the outer side of the flap, the driving end of the clamping cylinder extends into the through slot and is provided with a clamping plate for clamping the box panel placed in the through slot; The left flap mechanism comprises an elevation cylinder and a left flap cylinder connected at the fixed end, the driving end of the left flap cylinder is rotatably connected to the outer side of the corresponding flap through a second connecting member, and the driving end of the elevation cylinder is rotatably connected to the left side of the frame through a third connecting member; The right flap mechanism comprises a right flap cylinder, wherein the driving end of the right flap cylinder is rotatably connected to the outer side of the corresponding flap through a fourth connecting member, and the fixed end is rotatably connected to the right side of the frame through a fifth connecting member; The supporting device is located under the welding platform and is used to support the box board; The heating device is arranged on the top of the frame and has a retractable heating end. When the box board is flipped into place, the heating end extends to the hot melting position and heats the enclosed area of ​​the box boards on both sides.

2. The automatic panel turning hot-melt welding machine according to claim 1, characterized in that: The pressure device comprises a pressure cylinder and a pressure plate, wherein the pressure cylinder is fixed on the top of the frame and the pressure plate is arranged at the driving end of the pressure cylinder.

3. The automatic panel turning hot-melt welding machine according to claim 2, characterized in that: The welding platform is also provided with an embedding groove, in which a welding mold is placed, and the welding mold has a V-shaped notch.

4. An automatic panel turning hot-melt welding machine according to any one of claims 1 to 3, characterized in that: It also includes a pair of push plates, which are symmetrically arranged on both sides of the pressure device and located above the corresponding flaps. The push plates are connected to the top of the frame through an alignment cylinder. The push plates are driven by the alignment cylinder to push the upper end of the box plate downward to align the box plates on both sides.

5. The automatic panel turning hot-melt welding machine according to claim 4, characterized in that: The flap is also provided with a guide plate extending downwards for guiding the box plate.

6. The automatic panel turning hot-melt welding machine according to claim 5, characterized in that: The supporting device comprises a plurality of guide columns and supporting plates sleeved on the guide columns, and a spring is sleeved on the guide columns and located below the supporting plates.

7. An automatic panel turning hot-melt welding machine according to any one of claims 1 to 3, characterized in that: The heating device also includes an adjustable bracket, the upper end of which is connected to the top of the frame, and the lower end is provided with a lamp tube cylinder. The driving end of the lamp tube cylinder points to the hot melt position, and the heating end uses a lamp tube, which is connected to the driving end of the lamp tube cylinder through a group of clamps.

8. The automatic panel turning hot-melt welding machine according to claim 7, characterized in that: A pair of waist holes are arranged on the upper end of the adjustable bracket, and the waist holes are locked with bolts to fix the adjustable bracket to the top of the frame.

9. The automatic panel turning hot-melt welding machine according to claim 7, characterized in that: It also includes a pair of push plates, which are symmetrically arranged on both sides of the pressure device and located above the corresponding flaps. The push plates are connected to the top of the frame through an alignment cylinder. The push plates are driven by the alignment cylinder to push the upper end of the box plate downward to align the box plates on both sides.

10. The automatic panel turning hot-melt welding machine according to claim 9, characterized in that: The flap is also provided with a guide plate extending downward, and the supporting device includes a plurality of guide posts and a supporting plate sleeved on the guide posts, and a spring is sleeved on the guide posts below the supporting plate.

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