PUR hot melt adhesive spraying device

Abstract

The utility model discloses a PUR hot melt adhesive spraying device which comprises a base, the top face of the base is movably connected with a workbench, the top face of the workbench is movably connected with two clamping plates in mirror symmetry, a rack is arranged over the workbench and fixed to the top face of the base, and the inner walls of the two sides of the rack are each connected with a first supporting plate in a lifting mode. A supporting block is movably connected between the two first supporting plates, a spray head is fixedly sleeved with the supporting block, a heating tank is fixedly connected to the top face of the rack, a feeding opening is formed in the top face of the heating tank, a stirring mechanism is arranged in the heating tank, and the heating tank communicates with the spray head through a hose. The stirring mechanism composed of the stirring motor, the rotating shaft and the stirring claws is arranged on the heating tank, so that the stirring function is achieved when fixing glue in the heating tank is heated and melted, the fixing glue can be heated evenly, and the phenomenon that the fixing glue is blocked due to uneven heating, and a spray head is blocked is avoided.

Description

TECHNICAL FIELD

[0001] The utility model relates to glue spraying device technical field especially relates to a kind of PUR hot melt glue spraying device. BACKGROUND

[0002] PUR Chinese full name is moisture curing reaction type polyurethane hot melt adhesive;Main component is end isocyanate polyurethane prepolymer;The adhesion and toughness (elasticity) of PUR can be adjusted, and have excellent bonding strength, temperature resistance, chemical corrosion resistance and aging resistance;Has become one of important varieties in adhesive industry;Present widely used in packaging, wood processing, automobile, textile, electromechanical, aerospace and other national economic fields;Hot melt adhesive glue spraying machine is a kind of solid hot melt adhesive can be melted and become liquid by pressurizing device and program control system to substrate to carry out automatic coating mechanical equipment;It is the machine point equipment that heating control, pressurization function, liquid delivery and spraying function are integrated.

[0003] But when adding solid glue to the heating tank of the equipment, the heating tank does not have the function of stirring, which can easily lead to uneven heating of the solid glue in the heating tank, and the existence of clumps, which not only blocks the glue spraying port when spraying glue, but also affects the spreading effect of the glue on the object. UTILITY MODEL CONTENT

[0004] The utility model aims at solving the shortcomings in the prior art and provides a PUR hot melt adhesive glue spraying device.

[0005] In order to achieve the above-mentioned purpose, the utility model adopts the following technical scheme: a PUR hot melt adhesive glue spraying device, comprising a base, the top surface of the base is movably connected with a workbench, the top surface of the workbench is movably connected with two mirror-symmetrical clamps, a rack is arranged directly above the workbench, the rack is fixed to the top surface of the base, a first support plate is connected to the inner wall of each side of the rack, a support block is movably connected between the two first support plates, a spray head is fixedly sleeved in the support block, a heating tank is fixedly connected to the top surface of the rack, a feeding port is arranged on the top surface of the heating tank, a stirring mechanism is arranged in the heating tank, and the heating tank is communicated with the spray head through a hose.

[0006] As a further description of the above technical scheme: the front side of the workbench is horizontally penetrated by two mirror-symmetrical second threaded holes, a second screw rod is threadedly connected to each second threaded hole, one end of the second screw rod is rotatably connected with a second support plate, the second support plate is fixed to the top surface of the base, the other end is drivingly connected with a second driving motor, and the second driving motor is horizontally fixed to the top surface of the base.

[0007] As the further description of the above technical solution: the top surface of the base is transversely provided with two mirror-symmetrical sliding grooves, one sliding block is slidably connected in each of the sliding grooves, one clamping plate is fixed to the top surface of each of the sliding blocks, a through hole is formed in the side surface of each of the sliding blocks, a guide rod is axially slidably inserted into the through hole, the guide rod is horizontally fixed in the sliding groove, a spring is sleeved on the outer edge of the guide rod, and the spring abuts between the sliding groove and the sliding block.

[0008] As the further description of the above technical solution: the stirring mechanism comprises a stirring motor which is vertically fixed to the top surface of the heating tank, a rotating shaft which is drivingly connected to the output end of the stirring motor, and a stirring claw which is fixedly connected to the end of the rotating shaft; a liquid pump is fixedly connected in the heating tank and communicates with the hose.

[0009] As the further description of the above technical solution: the inner side of one of the first support plates is horizontally fixed with two mirror-symmetrical first driving motors, the output ends of the two first driving motors are drivingly connected with two first screw rods, the ends of the two first screw rods are rotatably connected to the inner side of the other first support plate, the two sides of the support block are fixed with two guide blocks, the side surface of each of the guide blocks is horizontally provided with a first threaded hole, and each of the guide blocks is threadedly sleeved with one of the first screw rods through the first threaded hole.

[0010] As the further description of the above technical solution: the top surfaces of the two first support plates are vertically fixed with two lifting motors, the output ends of the two lifting motors are drivingly connected with two driving shafts, and the two driving shafts are vertically fixed to the top wall of the rack.

[0011] The present application has the following advantages:

[0012] Compared with the prior art, the PUR hot melt adhesive spraying device has the following advantages: the stirring mechanism composed of a stirring motor, a rotating shaft and a stirring claw is arranged on the heating tank, so that the fixed adhesive in the heating tank can be uniformly heated and stirred when being heated and melted, and the caking of the fixed adhesive due to uneven heating is avoided, and the nozzle is prevented from being blocked. BRIEF DESCRIPTION OF DRAWINGS

[0013] Figure 1 The present application has the following advantages:

[0014] Figure 2 The present application has the following advantages:

[0015] Figure 3 The present application has the following advantages: Figure 1 The structure of the present application has the following advantages:

[0016] Figure 4 The utility model provides a kind of PUR hot melt adhesive glue spraying device's clamping plate and the connection main section view of workbench.

[0017] Legend:

[0018] 1, base; 2, rack; 3, first support plate; 4, first screw; 5, first drive motor; 6, feeding port; 7, stirring motor; 8, heating tank; 9, hose; 10, support block; 11, spray head; 12, second support plate; 13, workbench; 14, second threaded hole; 15, second screw; 16, second drive motor; 17, clamping plate; 18, liquid pump; 19, stirring claw; 20, rotating shaft; 21, first threaded hole; 22, guide block; 23, sliding block; 24, guide rod; 25, through hole; 26, sliding slot; 27, spring. Specific embodiments

[0019] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the utility model.

[0020] Reference Figures 1 to 4The utility model provides a kind of PUR hot melt adhesive glue spraying device: including base 1, the top surface of base 1 is movably connected with workbench 13, the front side of workbench 13 is horizontally penetrated two mirror image symmetry second screw holes 14, each second screw hole 14 is each threadedly connected with one second screw rod 15, one end of second screw rod 15 is rotatably connected with second support plate 12, second support plate 12 is fixed on the top surface of base 1, the other end is drivingly connected with second driving motor 16, second driving motor 16 is horizontally fixed on the top surface of base 1, the top surface of workbench 13 is movably connected with two mirror image symmetry clamps 17, the top of workbench 13 is equipped with rack 2, rack 2 is fixed on the top surface of base 1, the inner wall of the two sides of rack 2 is each liftingly connected with one first support plate 3, the top surface of two first support plates 3 is each vertically fixed with one lifting motor, the output end of each lifting motor is each drivingly connected with one driving shaft, two driving shafts are vertically fixed on the top wall of rack 2, one support block 10 is movably connected between two first support plates 3, spray head 11 is fixedly sleeved in support block 10, heating tank 8 is fixedly connected on the top surface of rack 2, feeding opening 6 is arranged on the top surface of heating tank 8, stirring mechanism is arranged in heating tank 8, heating tank 8 is communicated with spray head 11 by hose 9;Stirring mechanism includes stirring motor 7 vertically fixed on the top surface of heating tank 8, the output end of stirring motor 7 is drivingly connected with rotating shaft 20, the distal end of rotating shaft 20 is fixedly connected with stirring claw 19, liquid pump 18 is fixedly connected in heating tank 8, and liquid pump 18 is communicated with hose 9;

[0021] The inner side of one first support plate 3 is horizontally fixed with two mirror image symmetry first driving motor 5, the output end of two first driving motor 5 is each drivingly connected with one first screw rod 4, the distal end of two first screw rods 4 is rotatably connected on the inner side of the other first support plate 3, one guide block 22 is fixed on the two sides of support block 10, the side surface of each guide block 22 is each horizontally penetrated with one first screw hole 21, each first screw rod 4 is each threadedly sleeved with one guide block 22 through first screw hole 21;

[0022] In order to realize the clamping and positioning effect when workpiece is glued, two mirror image symmetry sliding grooves 26 are horizontally arranged on the top surface of base 1, one sliding block 23 is slidably connected in each sliding groove 26, one clamp 17 is fixed on the top surface of each sliding block 23, the side surface of sliding block 23 is penetrated with through hole 25, guide rod 24 is axially slidably penetrated in through hole 25, guide rod 24 is horizontally fixed in sliding groove 26, spring 27 is sleeved on the outer edge of guide rod 24, and spring 27 is abutted between sliding groove 26 and sliding block 23.

[0023] By setting stirring mechanism composed of stirring motor 7, rotating shaft 20 and stirring claw 19 on heating tank 8, when fixed glue in heating tank 8 is heated and melted, stirring effect is achieved, so that fixed glue can be heated uniformly, and clumping caused by uneven heating is avoided, so that spray head 11 is not blocked.

[0024] Working principle: in use, first of all, the solid block of glue is put into the heating tank 8 through the feeding port 6, then the stirring motor 7 drives the rotating shaft 20 to rotate, the rotating shaft 20 drives the stirring claw 19 to rotate, the solid glue in the heating tank 8 is rotated and stirred, so that the solid glue can be heated uniformly, avoid the solid glue not completely melted, appear agglomeration, block the nozzle 11, also improve the melting efficiency of the fixed glue, then the workpiece to be coated with glue is placed between the two clamping plates 17, through the compression of the spring 27, the workpiece is clamped and fixed on the workbench 13, the first driving motor 5 and the first screw rod 4 drive the nozzle 11 to move horizontally through the first screw hole 21 and the guide block 22, adjust the horizontal position of the nozzle 11 on the workpiece, then the lifting motor drives the first supporting plate 3 to descend, the first supporting plate 3 drives the nozzle 11 to descend, then the liquid pump 18 draws the melted glue in the heating tank 8 out through the hose 9 and injects it into the nozzle 11, then the nozzle 11 coats the glue on the surface of the workpiece, at the same time, the second driving motor 16 and the second screw rod 15 drive the workbench 13 to move longitudinally through the second screw hole 14, so as to drive the workpiece on the workbench 13 to feed longitudinally.

[0025] Finally, it should be noted that: the above only for the preferred embodiments of the present application, and not for limiting the present application, although the foregoing detailed description of the present application, for the skilled in the art, it still can be modified, or part of the technical features of the equivalent replacement, within the spirit and principles of the present application, any modification, equivalent replacement, improvement, etc., should be included in the scope of the present application.

Claims

1. A PUR hot melt glue spraying device comprising a base (1), characterized in that: The top surface of the base (1) is movably connected with a workbench (13), the top surface of the workbench (13) is movably connected with two mirror-symmetrical clamping plates (17), a rack (2) is arranged above the workbench (13), the rack (2) is fixed on the top surface of the base (1), the inner walls of the two sides of the rack (2) are each movably connected with a first supporting plate (3), a supporting block (10) is movably connected between the two first supporting plates (3), a nozzle (11) is fixedly sleeved in the supporting block (10), a heating tank (8) is fixedly connected to the top surface of the rack (2), a feeding opening (6) is arranged on the top surface of the heating tank (8), a stirring mechanism is arranged in the heating tank (8), and the heating tank (8) is in communication with the nozzle (11) through a hose (9).

2. The PUR hot melt adhesive spraying device according to claim 1, characterized in that: The front side of the workbench (13) is horizontally penetrated through two mirror-symmetrical second threaded holes (14), each of the second threaded holes (14) is threadedly penetrated through a second screw rod (15), one end of the second screw rod (15) is rotationally connected with a second supporting plate (12), the second supporting plate (12) is fixed on the top surface of the base (1), and the other end is drivingly connected with a second driving motor (16), and the second driving motor (16) is horizontally fixed on the top surface of the base (1).

3. The PUR hot melt adhesive spraying device according to claim 1, characterized in that: The top surface of the base (1) is transversely provided with two mirror-symmetrical sliding grooves (26), each of the sliding grooves (26) is slidably connected with a sliding block (23), the top surface of each of the sliding blocks (23) is fixed with the clamping plate (17), the side surface of the sliding block (23) is penetrated through a through hole (25), a guide rod (24) is axially slidably penetrated through the through hole (25), the guide rod (24) is horizontally fixed in the sliding groove (26), the outer edge of the guide rod (24) is sleeved with a spring (27), and the spring (27) abuts between the sliding groove (26) and the sliding block (23).

4. The PUR hot melt adhesive spraying device according to claim 1, characterized in that: The stirring mechanism comprises a stirring motor (7) which is vertically fixed on the top surface of the heating tank (8), the output end of the stirring motor (7) is drivingly connected with a rotating shaft (20), the distal end of the rotating shaft (20) is fixedly connected with a stirring claw (19), a liquid pump (18) is fixedly connected in the heating tank (8), and the liquid pump (18) is in communication with the hose (9).

5. The PUR hot melt adhesive spraying device according to claim 1, characterized in that: The inner side of one of the first supporting plates (3) is horizontally fixed with two mirror-symmetrical first driving motors (5), the output ends of the two first driving motors (5) are each drivingly connected with a first screw rod (4), the distal ends of the two first screw rods (4) are jointly rotationally connected to the inner side of the other first supporting plate (3), the two sides of the supporting block (10) are each fixed with a guide block (22), the side surface of each of the guide blocks (22) is each horizontally penetrated through a first threaded hole (21), and each of the first screw rods (4) is threadedly sleeved with the guide block (22) through the first threaded hole (21).

6. The PUR hot melt adhesive spraying device according to claim 1, characterized in that: The top surface of each of the two first support plates (3) is vertically fixed with a lifting motor, and the output end of each lifting motor is drivingly connected with a driving shaft, and the two driving shafts are vertically fixed on the top wall of the rack (2).

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