Dispensing machine glue injection pipe with preheating function

Abstract

The utility model provides a dispensing machine glue injection pipe with a preheating function, which relates to the technical field of dispensing machines, and comprises a glue injection pipe, the part between the inner walls of the glue injection pipe and close to the bottom edge is closed, the closed part of the inner bottom surface of the glue injection pipe is conical, a heat conduction rod is fixed in the middle of the inner bottom surface of the glue injection pipe, and the heat conduction rod is connected with the glue injection pipe. A plurality of separation openings are formed in the inner bottom face of the glue injection pipe in the circumferential direction at equal intervals, and all the separation openings penetrate through the lower portion of the glue injection pipe. The position, close to the bottom edge, between the inner walls of the glue injection pipe is arranged to be in a closed shape, and the closed position of the inner bottom face of the glue injection pipe is in a conical shape, so that after the separation openings are formed, the glue injection pipe is not prone to falling off; when glue in a molten state flows downwards from the conical surface, the glue can preferentially flow towards the axial lead direction of the glue injection pipe under the guidance of the inclined surface, and then diffuse towards four sides from the axial lead direction, so that the middle part of the glue column is ensured to be solid during glue discharge, and bubbles are prevented from being generated.

Description

Technical Field

[0001] This utility model relates to the field of dispensing machine technology, and in particular to a dispensing tube for a dispensing machine with a preheating function. Background Technology

[0002] A dispensing machine, also known as an adhesive applicator, glue applicator, glue applicator, or glue dispensing machine, is a specialized machine for controlling fluids. It is an automated machine that dispenses or coats fluids onto the surface or interior of a product, enabling three-dimensional or four-dimensional dispensing with precise positioning, accurate glue control, and preventing stringing, leakage, or dripping. Dispensing machines are primarily used in product manufacturing processes to precisely dispense, inject, coat, or drip adhesives, paints, and other liquids onto specific locations on each product.

[0003] Currently, when using a dispensing machine for glue application, the glue needs to be heated to a molten state inside the machine to facilitate its flow. However, after the glue flows to the outlet of the dispensing machine, a certain temperature difference will occur when the machine is not in operation for a long time, causing the glue to solidify and making it unsuitable for the next application. Utility Model Content

[0004] In order to solve the problems of the prior art, this utility model provides a dispensing tube for a dispensing machine with a preheating function.

[0005] To solve the above-mentioned technical problems, the basic concept of the technical solution adopted by this utility model is as follows:

[0006] A dispensing tube for a dispensing machine with a preheating function includes a dispensing tube with a closed inner wall near the bottom edge. The closed inner bottom surface of the dispensing tube is conical. A heat-conducting rod is fixed in the middle of the inner bottom surface of the dispensing tube. Multiple partitions are equidistantly opened along the circumferential direction on the inner bottom surface of the dispensing tube, and all of the partitions extend to the bottom of the dispensing tube. An annular constraint cover is fixed to the bottom of the dispensing tube.

[0007] Optionally, the bottom of the annular constraint cover is inclined and extends towards the axis of the dispensing tube, making the inner wall of the dispensing tube near the bottom edge closed. Since the closed part of the inner bottom surface of the dispensing tube is conical, after the partition is opened, when the molten glue flows downward from the conical surface, it will preferentially flow towards the axis of the dispensing tube under the guidance of the inclined surface, and then diffuse outward from the axis, thereby ensuring that the middle part of the glue column is solid when dispensing, avoiding the generation of air bubbles.

[0008] Optionally, the interior of the heat-conducting rod is hollow, and a heating resistor is provided inside the heat-conducting rod. A vacuum cavity is provided on the inner wall of the glue-dispensing tube near the outer edge. The glue-dispensing tube can be kept warm by providing a vacuum cavity.

[0009] Optionally, a heating chamber is provided on the inner wall of the dispensing tube near the inner edge, and a heating plate is provided inside the heating chamber. The heating plate is provided on the inner wall of the dispensing tube, and a heating resistor is provided inside the heat-conducting rod, so that the glue can be heated after flowing into the dispensing sleeve to avoid solidification.

[0010] Optionally, a support ring is fixed to the outer surface of the dispensing tube near the top edge, and a threaded connecting ring is provided on the outer surface of the dispensing tube near the top edge.

[0011] Optionally, an annular sealing groove is provided at the top of the glue injection tube, and a sealing sleeve is provided between the inner walls of the glue injection tube near the top edge.

[0012] By adopting the above technical solution, this utility model has the following beneficial effects compared with the prior art. Of course, any product implementing this utility model does not necessarily need to achieve all of the following advantages at the same time:

[0013] 1. In this utility model, in actual use, the inner wall of the dispensing tube is closed near the bottom edge. Since the closed part of the inner bottom surface of the dispensing tube is conical, after the partition is opened, when the molten glue flows downward from the conical surface, it will preferentially flow towards the axis of the dispensing tube under the guidance of the inclined surface, and then diffuse from the axis to the four sides, thereby ensuring that the middle part of the glue column is solid when dispensing, and avoiding the generation of air bubbles.

[0014] 2. In practical use, the dispensing tube needs to be fitted onto the outlet of the external dispensing machine. A vacuum chamber can be set to keep the dispensing tube warm, and a heating plate is set on the inner wall of the dispensing tube. At the same time, a heating resistor is set inside the heat-conducting rod so that the glue can be heated after flowing into the dispensing sleeve, thus preventing solidification. Attached Figure Description

[0015] The accompanying drawings described below are merely some embodiments. Those skilled in the art can obtain other drawings based on these drawings without any creative effort. In the drawings:

[0016] Figure 1 This utility model presents a bottom-view three-dimensional structural diagram of a dispensing tube with preheating function for a dispensing machine;

[0017] Figure 2 This utility model presents a top-view three-dimensional structural diagram of a dispensing tube with a preheating function;

[0018] Figure 3 This utility model provides a cross-sectional three-dimensional structural diagram of a dispensing tube for a dispensing machine with a preheating function;

[0019] Figure 4 This utility model Figure 3 A magnified view of point A in the middle.

[0020] The attached diagram lists the components represented by each number as follows:

[0021] 1. Injection tube; 2. Support ring; 3. Threaded connector; 4. Annular constraint cover; 5. Annular sealing groove; 6. Heat-conducting rod; 7. Sealing sleeve; 8. Separator; 9. Vacuum chamber; 10. Heating plate; 11. Heating chamber; 12. Heating resistor.

[0022] It should be noted that these accompanying drawings and textual descriptions are not intended to limit the scope of the present invention in any way, but rather to illustrate the concept of the present invention to those skilled in the art by referring to specific embodiments. Detailed Implementation

[0023] The present invention will now be described in further detail with reference to the accompanying drawings.

[0024] Example 1, as Figure 1-4 As shown, this utility model provides a dispensing tube with preheating function: it includes a dispensing tube 1, the inner wall of the dispensing tube 1 is closed near the bottom edge, the closed part of the inner bottom surface of the dispensing tube 1 is conical, a heat-conducting rod 6 is fixed in the middle of the inner bottom surface of the dispensing tube 1, multiple partitions 8 are equally spaced along the circumferential direction on the inner bottom surface of the dispensing tube 1, and the multiple partitions 8 all extend to the bottom of the dispensing tube 1, and an annular constraint cover 4 is fixed at the bottom of the dispensing tube 1.

[0025] The effect achieved by the entire embodiment 1 is that, in actual use, the inner wall of the dispensing tube 1 is set to be closed near the bottom edge. Since the closed part of the inner bottom surface of the dispensing tube 1 is conical, after the partition 8 is opened, when the molten glue flows downward from the conical surface, it will preferentially flow towards the axis of the dispensing tube 1 under the guidance of the inclined surface, and then diffuse to all sides from the axis, thereby ensuring that the middle part of the glue column is solid when dispensing glue, and avoiding the generation of air bubbles.

[0026] Example 2, as Figure 1-4As shown, the bottom of the annular constraint cover 4 is inclined and extends towards the axis of the glue injection tube 1. The interior of the heat-conducting rod 6 is hollow and a heating resistor 12 is installed inside the heat-conducting rod 6. A vacuum cavity 9 is opened on the inner wall of the glue injection tube 1 near the outer edge. A heating cavity 11 is opened on the inner wall of the glue injection tube 1 near the inner edge. A heating plate 10 is installed inside the heating cavity 11. A support ring 2 is fixed on the outer surface of the glue injection tube 1 near the top edge. A threaded connecting ring 3 is provided on the outer surface of the glue injection tube 1 near the top edge. An annular sealing groove 5 is opened on the top of the glue injection tube 1. A sealing sleeve 7 is provided between the inner walls of the glue injection tube 1 near the top edge.

[0027] The effect achieved by the entire embodiment 2 is that, in actual use, the dispensing tube 1 needs to be fitted onto the outlet of the external dispensing machine. The dispensing tube 1 can be kept warm by setting a vacuum chamber 9, and a heating plate 10 is set on the inner wall of the dispensing tube 1. At the same time, a heating resistor 12 is set inside the heat-conducting rod 6 so that the glue can be heated after flowing into the dispensing sleeve 1, thus avoiding solidification.

[0028] Working principle: In actual use, the inner wall of the dispensing tube 1 is closed near the bottom edge. Since the closed part of the inner bottom surface of the dispensing tube 1 is conical, after the partition 8 is opened, when the molten glue flows downward from the conical surface, it will preferentially flow towards the axis of the dispensing tube 1 under the guidance of the inclined surface, and then diffuse outward from the axis. This ensures that the middle part of the glue column is solid when dispensing, avoiding the formation of air bubbles. The dispensing tube 1 needs to be fitted onto the outlet of the external dispensing machine. The dispensing tube 1 can be kept warm by setting a vacuum chamber 9. A heating plate 10 is set on the inner wall of the dispensing tube 1, and a heating resistor 12 is set inside the heat-conducting rod 6. This allows the glue to be heated after flowing into the dispensing sleeve 1, preventing solidification.

[0029] This utility model is not limited to the above-described embodiments. Anyone should know that structural changes made under the guidance of this utility model, and any technical solutions that are the same as or similar to this utility model, fall within the protection scope of this utility model. Technical aspects, shapes, and structures not described in detail in this utility model are all publicly known technologies.

Claims

1. A glue injection tube with preheating function for glue dispenser, comprising a glue injection tube (1), characterized in that: The inner wall of the glue injection pipe (1) is closed near the bottom edge, the inner bottom surface of the glue injection pipe (1) is conical, the inner bottom surface of the glue injection pipe (1) is fixed with a heat-conducting rod (6) in the middle, a plurality of partition openings (8) are equidistantly arranged on the inner bottom surface of the glue injection pipe (1) in the circumferential direction, the plurality of partition openings (8) all penetrate to the lower side of the glue injection pipe (1), and the bottom of the glue injection pipe (1) is fixed with an annular constraint cover (4).

2. The glue injection tube with preheating function of the glue dispenser according to claim 1, wherein: The bottom of the annular constraint cover (4) is inclined and extends towards the axial line of the glue injection pipe (1).

3. The glue injection tube with preheating function of claim 2, wherein: The heat-conducting rod (6) is hollow, the heat-conducting rod (6) is provided with a heating resistor (12) in the inside, the inner wall of the glue injection pipe (1) is provided with a vacuum cavity (9) near the outer edge.

4. The glue injection tube with preheating function of claim 3, wherein: The inner wall of the glue injection pipe (1) is provided with a heating cavity (11) near the inner edge, and the heating cavity (11) is provided with a heating plate (10) in the inside.

5. The glue injection tube with preheating function of claim 4, wherein: The outer surface of the glue injection pipe (1) is fixed with a support ring (2) near the top edge, and the outer surface of the glue injection pipe (1) is provided with a threaded connecting ring (3) near the top edge.

6. The glue injection tube with preheating function of claim 5, wherein: The top of the glue injection pipe (1) is provided with an annular sealing groove (5), and the inner wall of the glue injection pipe (1) is provided with a sealing sleeve (7) near the top edge.

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