Hot melt adhesive spraying machine for production

Abstract

The utility model relates to a hot melt adhesive sprayer for production, which comprises a rack, a workbench is arranged on the rack, a hot melt adhesive extrusion mechanism, a nozzle driving mechanism, a nozzle movable seat and a nozzle are arranged on the workbench, the nozzle driving mechanism is used for driving the nozzle movable seat to move left and right and up and down, and the nozzle movable seat is arranged on the workbench. The nozzle is fixedly installed on the nozzle movable seat, a hot melt adhesive conveying pipeline is connected between the nozzle and the hot melt adhesive extrusion mechanism, the nozzle movable seat is provided with cold air spray heads on the left side and the right side of the nozzle, a three-way pipeline is connected between the two cold air spray heads, and the three-way pipeline is further connected with a cold air conveying pipeline. According to the utility model, the curing time of the hot melt adhesive is shortened through the structural arrangement of the nozzle and the cold air spray head, so that the bonding efficiency and quality are improved.

Description

Technical Field

[0001] The utility model relates to the technical field of glue spraying machines, in particular to a hot melt glue spraying machine for production. Background Art

[0002] Due to its excellent bonding performance and convenient application method, hot melt glue is widely used in many industries, such as product production fields like packaging, shoemaking, furniture manufacturing, and automotive interior decoration. In the use of traditional hot melt glue spraying machines, the hot melt glue heated to a liquid state is sprayed onto the target object through a nozzle. When the hot melt glue contacts the surface of the object, it needs to wait for the temperature to decrease before it can solidify to achieve the bonding effect. If the temperature of the object surface is relatively high, the solidification speed of the hot melt glue will be slower, thus affecting the production efficiency. And in some applications that require high-precision bonding, the long solidification time may lead to unstable bonding and affect the product quality. In view of the above technical problems, this application makes improvements. Summary of the Utility Model

[0003] The utility model provides a hot melt glue spraying machine for production, which can quickly cool the hot melt glue when it is sprayed onto the target object, so as to achieve the effect of rapid solidification and solve the above problems existing in the prior art during use.

[0004] The technical solution of the utility model is realized as follows: A hot melt glue spraying machine for production includes a frame. There is a workbench on the frame. A hot melt glue extrusion mechanism, a nozzle driving mechanism, a nozzle movable seat, and a nozzle are provided on the workbench. The nozzle driving mechanism is used to drive the nozzle movable seat to move left and right and up and down. The nozzle is fixedly installed on the nozzle movable seat. A hot melt glue conveying pipeline is connected between the nozzle and the hot melt glue extrusion mechanism. Cold air nozzles are provided on both the left and right sides of the nozzle on the nozzle movable seat. A tee pipeline is connected between the two cold air nozzles, and a cold air conveying pipeline is also connected to the tee pipeline.

[0005] Preferably, the nozzle driving mechanism includes a support frame, a cross seat, and a mounting plate. The cross seat is fixedly connected to the support frame. A lead screw is rotatably provided on the cross seat. The lead screw is horizontally arranged from left to right. A motor connected to the lead screw is fixedly connected to the cross seat. Guide rods are fixedly connected to both the upper and lower sides of the lead screw on the cross seat. The guide rods are parallel to the lead screw. The mounting plate is slidably fitted on the guide rods. The mounting plate is in threaded cooperation with the lead screw. The nozzle movable seat is vertically movably arranged on the mounting plate. An elevating driving mechanism for driving the nozzle movable seat to move up and down is provided on the mounting plate.

[0006] Preferably, the lifting drive mechanism includes a driving telescopic cylinder. The piston rod of the driving telescopic cylinder is fixedly connected to the nozzle movable seat. A vertical rod is also fixedly connected to the mounting plate. The vertical rod is vertically arranged up and down. The nozzle movable seat is slidably arranged up and down on the vertical rod.

[0007] Preferably, a hanging rod is fixedly connected to the support frame. The hot melt adhesive conveying pipeline and the cold air conveying pipeline are both spirally wound around the hanging rod.

[0008] Preferably, the hot melt adhesive conveying pipeline and the cold air conveying pipeline are respectively wound around the left and right sides of the hanging rod.

[0009] Preferably, the hot melt adhesive extrusion mechanism includes a mounting frame, an extrusion telescopic cylinder and a barrel. The barrel is fixed on the mounting frame. The extrusion telescopic cylinder is located above the barrel. The piston rod of the extrusion telescopic cylinder extends into the barrel and is fixedly connected to a pressing plate. A feeding valve is arranged on the side wall of the barrel. A discharging valve is arranged at the bottom of the barrel. The discharging valve is connected to the hot melt adhesive conveying pipeline.

[0010] Preferably, a pneumatic ball valve is fixedly arranged on the nozzle movable seat. The pneumatic ball valve is connected between the hot melt adhesive conveying pipeline and the nozzle.

[0011] In summary, the beneficial effects of the present utility model are as follows:

[0012] 1. The present utility model extrudes the hot melt adhesive through the hot melt adhesive conveying pipeline to the nozzle by the hot melt adhesive extrusion mechanism, and sprays it from the nozzle onto the target object. The cold air conveying pipeline conveys cold air to the cold air nozzles on the left and right sides of the nozzle, and the cold air nozzles blow the cold air onto the target object, so as to achieve the effect of rapid curing of the hot melt adhesive. The present application shortens the curing time of the hot melt adhesive through the structural settings of the nozzle and the cold air nozzles, thereby improving the bonding efficiency and quality. Brief Description of the Drawings

[0013] In order to more clearly illustrate the technical solutions in the embodiments of the present utility model or the prior art, the following will briefly introduce the drawings required for use in the description of the embodiments or the prior art. Obviously, the following drawings are only some embodiments of the present utility model. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative efforts.

[0014] Figure 1 It is a schematic diagram of the overall structure of the present utility model;

[0015] Figure 2 It is a schematic diagram of the structure of the present utility model after removing the frame and the workbench;

[0016] Figure 3 For the present utility model inFigure 2 Schematic structural diagram of removing the hot melt adhesive extrusion mechanism, support frame and horizontal base part on the basis of

[0017] Figure 4 Schematic structural diagram of the hot melt adhesive extrusion mechanism in the present utility model;

[0018] Figure 5 is Figure 4 Schematic cross-sectional structure diagram of

[0019] In the figure: 10, frame; 20, workbench; 30, nozzle movable seat; 41, nozzle; 42, pneumatic ball valve; 43, hot melt adhesive conveying pipeline; 51, cold air nozzle; 52, tee pipeline; 53, cold air conveying pipeline; 61, support frame; 62, horizontal base; 63, mounting plate; 64, lead screw; 65, motor; 66, guide rod; 67, driving telescopic cylinder; 68, vertical rod; 71, hanging rod; 81, mounting frame; 82, extrusion telescopic cylinder; 83, barrel; 84, extrusion plate; 85, feeding valve; 86, discharging valve. Specific embodiments

[0020] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the attached Figures 1-5 , and it is obvious that the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. Based on the embodiments in the present utility model, all other embodiments obtained by those of ordinary skill in the art without making creative efforts shall fall within the protection scope of the present utility model.

[0021] Embodiment:

[0022] Such as Figures 1 to 5As shown in the figure, the utility model discloses a hot melt adhesive spraying machine for production, which includes a frame 10. There is a workbench 20 on the frame 10. A hot melt adhesive extrusion mechanism, a nozzle driving mechanism, a nozzle movable seat 30 and a nozzle 41 are arranged on the workbench 20. Among them, the nozzle driving mechanism is used to drive the nozzle movable seat 30 to move left and right and up and down. The nozzle 41 is fixedly installed on the nozzle movable seat 30. A hot melt adhesive conveying pipeline 43 is connected between the nozzle 41 and the hot melt adhesive extrusion mechanism. In addition, cold air nozzles 51 are arranged on both the left and right sides of the nozzle 41 on the nozzle movable seat 30. A tee pipeline 52 is connected between the two cold air nozzles 51. A cold air conveying pipeline 53 is also connected to the tee pipeline 52. The tee pipeline 52 is used to connect the cold air conveying pipeline 53 and the two cold air nozzles 51. A refrigeration device is externally connected to the cold air conveying pipeline 53. The refrigeration device can specifically adopt existing devices such as a cold air blower. After the refrigeration device conveys cold air into the cold air conveying pipeline 53, the cold air conveying pipeline 53 blows the cold air into the tee pipeline 52 and then sprays it out from the two cold air nozzles 51. The air outlets of the two cold air nozzles 51 are both inclined towards the lower side direction of the nozzle 41.

[0023] During the production work of the utility model, the target object is placed on the workbench 20. The nozzle driving mechanism drives the nozzle movable seat 30 to move left and right and up and down, so that the nozzle 41 is aligned with the position where the target object needs to be sprayed with hot melt adhesive. Then, the hot melt adhesive extrusion mechanism extrudes the hot melt adhesive through the hot melt adhesive conveying pipeline 43 to the nozzle 41 and sprays it onto the accurate position of the target object. The cold air conveying pipeline 53 conveys cold air to the cold air nozzles 51 on both sides of the nozzle 41, and the cold air nozzles 51 blow the cold air onto the target object, so as to achieve the effect of rapid curing of the hot melt adhesive. This application shortens the curing time of the hot melt adhesive through the structural settings of the nozzle 41 and the cold air nozzles 51, thereby improving the bonding efficiency and quality.

[0024] Specifically, the nozzle driving mechanism includes a support frame 61, a cross base 62, and a mounting plate 63. The cross base 62 is fixedly connected to the support frame 61. A lead screw 64 is rotatably provided on the cross base 62. The lead screw 64 is horizontally arranged from left to right. A motor 65 connected to the lead screw 64 is fixedly connected to the cross base 62. Further, guide rods 66 are fixedly connected to both the upper and lower sides of the lead screw 64 on the cross base 62. The guide rods 66 are parallel to the lead screw 64. The mounting plate 63 is slidably engaged with the guide rods 66 and is in threaded engagement with the lead screw 64. Among them, the nozzle movable seat 30 is vertically movably provided on the mounting plate 63. An elevating driving mechanism for driving the nozzle movable seat 30 to move up and down is provided on the mounting plate 63. Further, the elevating driving mechanism includes a driving telescopic cylinder 67. The piston rod of the driving telescopic cylinder 67 is fixedly connected to the nozzle movable seat 30. A vertical rod 68 is also fixedly connected to the mounting plate 63. The vertical rod 68 is vertically arranged up and down. The nozzle movable seat 30 is slidably provided up and down on the vertical rod 68. The nozzle driving mechanism drives the mounting plate 63 to move left or right on the guide rods 66 by driving the lead screw 64 through the motor 65, and the driving telescopic cylinder 67 can drive the nozzle movable seat 30 to move up and down. Therefore, the left and right and up and down movements of the nozzle 41 are realized.

[0025] As Figure 2 shown, a hanging rod 71 is fixedly connected to the support frame 61. The hot melt adhesive conveying pipe 43 and the cold air conveying pipe 53 are both spirally wound around the hanging rod 71. Further, the hot melt adhesive conveying pipe 43 and the cold air conveying pipe 53 are respectively wound around the left and right sides of the hanging rod 71. The hot melt adhesive conveying pipe 43 and the cold air conveying pipe 53 with this structure can keep the pipeline clean during the left and right movement of the nozzle 41, and are not easily entangled or interfere with other structures.

[0026] As Figure 4 With Figure 5As shown in the figure, the hot melt adhesive extrusion mechanism specifically includes a mounting frame 81, an extrusion telescopic cylinder 82, and a barrel 83. Among them, the barrel 83 is fixed on the mounting frame 81, and the extrusion telescopic cylinder 82 is located above the barrel 83. The piston rod of the extrusion telescopic cylinder 82 extends into the barrel 83 and is fixedly connected with a pressing plate 84. An inlet valve 85 is provided on the side wall of the barrel 83. The inlet valve 85 can be externally connected to an existing device for manufacturing hot melt adhesive, and this device transports the hot melt adhesive heated to a liquid state into the barrel 83. After a certain amount is transported, the inlet valve 85 is closed. A discharge valve 86 is provided at the bottom of the barrel 83, and the discharge valve 86 is connected to the hot melt adhesive conveying pipeline 43. By opening the discharge valve 86 and driving the pressing plate 84 downward through the extrusion telescopic cylinder 82, the hot melt adhesive in the barrel 83 can be extruded from the discharge valve 86 into the hot melt adhesive conveying pipeline 43. It should also be noted that if it is necessary to prevent the hot melt adhesive in the hot melt adhesive conveying pipeline 43 from solidifying in the pipeline, several heating wires can be wound around the outside of the hot melt adhesive conveying pipeline 43, which is an existing technology.

[0027] In addition, the driving telescopic cylinder 67 and the extrusion telescopic cylinder 82 can be selected from one of a cylinder, an oil cylinder, or an electric cylinder.

[0028] In addition, a pneumatic ball valve 42 is fixedly provided on the nozzle movable seat 30. The pneumatic ball valve 42 is connected between the hot melt adhesive conveying pipeline 43 and the nozzle 41, and the pneumatic ball valve 42 can accurately control the amount of hot melt adhesive ejected from the nozzle 41.

[0029] At the same time, it should be pointed out that the terms used in the present invention, such as "front", "rear", "vertical", "horizontal", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, it should not be construed as a limitation to the protection scope of the present invention.

[0030] The above are only the preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A hot melt adhesive spraying machine for production, comprising a frame, the frame having a workbench, characterized in that: The workbench is provided with a hot melt adhesive extrusion mechanism, a nozzle driving mechanism, a nozzle movable seat and a nozzle. The nozzle driving mechanism is used to drive the nozzle movable seat to move left and right and up and down. The nozzle is fixedly installed on the nozzle movable seat. A hot melt adhesive delivery pipeline is connected between the nozzle and the hot melt adhesive extrusion mechanism. The nozzle movable seat is provided with cold air nozzles on the left and right sides of the nozzle. A three-way pipeline is connected between the two cold air nozzles, and a cold air delivery pipeline is also connected to the three-way pipeline.

2. A hot melt adhesive spraying machine for production according to claim 1, characterized in that: The nozzle driving mechanism includes a support frame, a cross seat and a mounting plate, the cross seat is fixedly connected to the support frame, a screw rod is rotatably arranged on the cross seat, the screw rod is arranged horizontally left and right, a motor connected to the screw rod is fixedly connected to the cross seat, the cross seat is fixedly connected to guide rods on the upper and lower sides of the screw rod, the guide rods are parallel to the screw rod, the mounting plate is slidably fitted on the guide rods, the mounting plate and the screw rod are threadedly fitted, the nozzle movable seat is movably arranged on the mounting plate, and a lifting drive mechanism for driving the nozzle movable seat to move up and down is provided on the mounting plate.

3. A hot melt adhesive spraying machine for production according to claim 2, characterized in that: The lifting drive mechanism includes a driving telescopic cylinder, a piston rod of the driving telescopic cylinder is fixedly connected to the nozzle movable seat, and a vertical rod is also fixedly connected to the mounting plate. The vertical rod is vertically arranged up and down, and the nozzle movable seat is slidably arranged up and down on the vertical rod.

4. A hot melt adhesive spraying machine for production according to claim 2, characterized in that: The support frame is fixedly connected with a hanging rod, and the hot melt adhesive delivery pipeline and the cold air delivery pipeline are both spirally wound on the hanging rod.

5. A hot melt adhesive spraying machine for production according to claim 4, characterized in that: The hot melt adhesive delivery pipeline and the cold air delivery pipeline are respectively arranged on the left and right sides of the hanging rod.

6. A hot melt adhesive spraying machine for production according to claim 1, characterized in that: The hot melt adhesive extrusion mechanism includes a mounting frame, an extrusion telescopic cylinder and a barrel. The barrel is fixed on the mounting frame, the extrusion telescopic cylinder is located on the upper side of the barrel, the piston rod of the extrusion telescopic cylinder extends into the barrel and is fixedly connected to an extrusion plate, an inlet valve is provided on the side wall of the barrel, and a discharge valve is provided at the bottom of the barrel, and the discharge valve is connected to the hot melt adhesive delivery pipeline.

7. A hot melt adhesive spraying machine for production according to claim 1, characterized in that: A pneumatic ball valve is fixedly arranged on the movable seat of the nozzle, and the pneumatic ball valve is connected between the hot melt adhesive delivery pipeline and the nozzle.

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