Heating cylinder and injection valve

Abstract

The utility model provides a heating cylinder and an injection valve, and the heating cylinder comprises a cylinder body which is provided with a material cavity penetrating through the two ends of the cylinder body, the cylinder body is used for being installed on a flow channel assembly, and the material cavity is communicated with the flow channel assembly; one end of the connecting assembly is connected to the barrel, and the other end is arranged above the material cavity; the pressing assembly is arranged at the end, located above the material cavity, of the connecting assembly, and at least part of the pressing assembly can move into the material cavity to seal one end of the material cavity; and the heating assembly is arranged on the cylinder body. The pressing assembly is installed on the barrel through the connecting assembly, so that the pressing assembly is not connected with the valve body of the injection valve, the counter-acting force borne by the pressing assembly during air supply cannot be conducted to the valve body, and therefore the situation that the stability of the valve body is affected by the glue supply air pressure is avoided. Moreover, the pressing assembly is directly installed on the cylinder body without being limited by the fact that the installation plate needs to be matched with the rubber cylinder in specification, only the rubber cylinder needs to be matched with the cylinder body, and the installation mode is simple and flexible.

Description

Technical Field

[0001] This utility model relates to the field of injection valve technology, and in particular to a heating cylinder and an injection valve. Background Technology

[0002] The heating cylinder of the piezoelectric jet valve can heat solid hot melt adhesive, which is then sprayed out through the piezoelectric jet valve to apply, pot, or drip the hot melt adhesive onto the product, allowing the product to perform functions such as adhesion, potting, insulation, fixation, and surface smoothing.

[0003] In related technologies, piezoelectric injection valves also include a flow channel assembly, a clamping assembly, and a valve body. The heating cylinder is connected to the flow channel, and the clamping assembly is mounted on the valve body via a mounting plate. The clamping assembly seals one end of the heating cylinder. During adhesive supply, gas is introduced into the heating cylinder, and the adhesive inside is forced into the flow channel assembly under the pressure of the gas. However, because the clamping assembly is mounted on the valve body, it experiences a reaction force from the gas pressure during gas supply. This reaction force is transmitted to the valve body through the mounting plate, affecting the stability of the valve body. Utility Model Content

[0004] The technical problem to be solved by this utility model is to provide a heating cylinder and a spray valve, which aims to solve the problem that the supply air pressure of the piezoelectric spray valve will affect the stability of the valve body in the related art.

[0005] To solve the above-mentioned technical problems, the first aspect of this utility model provides a heating cylinder, comprising:

[0006] A cylindrical body is provided with material cavities extending through both ends thereto. The cylindrical body is used to be installed on a flow channel assembly, and the material cavities are in communication with the flow channel assembly.

[0007] A connecting component, one end of which is connected to the cylinder and the other end is located above the material chamber;

[0008] A clamping assembly is disposed at one end of the connecting assembly located above the material cavity, the clamping assembly being at least partially movable into the material cavity to close one end of the material cavity; and...

[0009] A heating component is disposed in the cylinder.

[0010] Optionally, the clamping assembly includes:

[0011] A clamping element, movably mounted to the connecting assembly, is movable toward or away from the material cavity; and...

[0012] A pressure plate is connected to one end of the clamping member near the material cavity, and the pressure plate is adapted to the material cavity.

[0013] Optionally, the clamping member is screwed into the connecting assembly.

[0014] Optionally, the clamping assembly further includes a buffer member connected to the clamping member and the connecting assembly respectively, the buffer member being located on the side of the connecting assembly away from the material cavity.

[0015] Optionally, the connection component includes:

[0016] A connecting seat is disposed at one end of the cylinder near the clamping assembly;

[0017] A rotating shaft, rotatably mounted on the connecting seat, the length of the rotating shaft extending along the length direction of the material cavity; and...

[0018] A connecting arm, one end of which is connected to the rotating shaft and the other end of which extends radially along the rotating shaft, and the clamping assembly is disposed at the end of the connecting arm away from the rotating shaft;

[0019] The connecting arm can rotate with the rotating shaft to the top of the material chamber.

[0020] Optionally, the connector includes:

[0021] A base plate is disposed on the cylinder; and,

[0022] A connecting post is connected at one end to the base plate and at the other end extends along the length of the material cavity. The connecting post is located on one side of the material cavity and has a mounting hole. The rotating shaft is located in the mounting hole.

[0023] Optionally, the heating cylinder further includes:

[0024] A heat insulation sleeve is disposed at one end of the cylinder near the pressing assembly, the heat insulation sleeve is sleeved on the outside of the cylinder, and the connecting assembly is connected to the heat insulation sleeve;

[0025] An mounting block is disposed on the heat insulation sleeve; and...

[0026] A connector is disposed on the mounting block and electrically connected to the heating assembly.

[0027] Optionally, the heating cylinder further includes a base detachably connected to one end of the cylinder away from the connecting assembly, the base sealing the material cavity, and the base having a discharge hole communicating with the material cavity.

[0028] Optionally, the cylinder is provided with a first mounting cavity and a second mounting cavity, wherein the first mounting cavity, the second mounting cavity and the material cavity are not connected to each other;

[0029] The heating component includes:

[0030] A heating element is disposed in the cylinder and located within the first mounting cavity; and,

[0031] A temperature sensor is disposed in the cylinder and located in the second mounting cavity.

[0032] A second aspect of this utility model provides an injection valve, including a valve body, a flow channel assembly, and a heating cylinder as described in any one of the above, wherein the flow channel assembly is disposed on the valve body, and the heating cylinder is connected to the flow channel assembly.

[0033] Compared with related technologies, the heating cylinder and injection valve of this utility model have the following advantages: the clamping assembly is installed on the cylinder body through the connecting assembly, so that the clamping assembly is not connected to the valve body of the injection valve. When air is supplied, the reaction force on the clamping assembly will not be transmitted to the valve body, thereby avoiding the influence of the supply air pressure on the stability of the valve body. Moreover, the clamping assembly is directly installed on the cylinder body, which is not limited by the requirement that the mounting plate must match the specifications of the glue tube. As long as the glue tube matches the cylinder body, the installation method is simple and flexible. Attached Figure Description

[0034] To more clearly illustrate the technical solutions in the embodiments of this utility model or related technologies, the drawings used in the description of the embodiments or related technologies will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0035] Figure 1 This is a schematic diagram of the structure of the heating cylinder provided in an embodiment of the present utility model;

[0036] Figure 2 This is an exploded view of the heating cylinder provided in an embodiment of this utility model;

[0037] Figure 3 This is a schematic diagram of the structure of the connector provided in an embodiment of the present utility model;

[0038] Figure 4 This is a schematic diagram of the structure of the cylinder provided in an embodiment of the present invention.

[0039] In the accompanying drawings, the reference numerals represent: 1. Cylinder; 11. Material cavity; 12. First mounting cavity; 13. Second mounting cavity; 2. Connecting assembly; 21. Connecting seat; 211. Base plate; 2111. Clearance hole; 212. Connecting column; 2121. Mounting hole; 22. Rotating shaft; 23. Connecting arm; 231. Threaded hole; 3. Clamping assembly; 31. Clamping element; 32. Buffer element; 4. Heat insulation sleeve; 5. Mounting block; 6. Connector; 7. Base; 71. Discharge hole. Detailed Implementation

[0040] The embodiments of this utility model are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain this utility model, and should not be construed as limiting this utility model. All other embodiments obtained by those skilled in the art based on the embodiments of this utility model without inventive effort are within the scope of protection of this utility model.

[0041] In the description of this utility model, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "circumferential", "radial", etc., indicating the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.

[0042] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this utility model, "a plurality of" or "several" means two or more, unless otherwise explicitly specified.

[0043] Example:

[0044] This utility model provides a spray valve, including a valve body, a flow channel assembly, and a heating cylinder. The flow channel assembly is disposed on the valve body, and the heating cylinder is connected to the flow channel assembly. The heating cylinder heats the adhesive material, and the heated adhesive material flows into the flow channel assembly. The valve body then sprays the adhesive material from the flow channel assembly.

[0045] Please see Figures 1 to 4 The heating cylinder includes a cylinder body 1, a connecting assembly 2, a pressing assembly 3, and a heating assembly. The cylinder body 1 has a material cavity 11 extending through both ends of it. The cylinder body 1 is used to be installed on the flow channel assembly, and the material cavity 11 is in communication with the flow channel assembly. One end of the connecting assembly 2 is connected to the cylinder body 1, and the other end is located above the material cavity 11. The pressing assembly 3 is located at the end of the connecting assembly 2 located above the material cavity 11, and the pressing assembly 3 is at least partially movable into the material cavity 11 to close one end of the material cavity 11. The heating assembly is located on the cylinder body 1.

[0046] The clamping assembly 3 is mounted on the cylinder 1 via the connecting assembly 2, ensuring that the clamping assembly 3 is not connected to the valve body of the injection valve. During air supply, the reaction force on the clamping assembly 3 is not transmitted to the valve body, thus preventing the stability of the valve body from being affected by the supply air pressure. Furthermore, the clamping assembly 3 is directly mounted on the cylinder 1, eliminating the requirement for the mounting plate to match the glue cartridge specifications; only the glue cartridge and cylinder 1 need to be compatible, making the installation method simple and flexible.

[0047] Please see Figure 1 and Figure 2 The clamping assembly 3 includes a clamping member 31 and a pressure plate. The clamping member 31 is movably assembled to the connecting assembly 2. The clamping member 31 can move towards or away from the material cavity 11. The pressure plate is connected to the end of the clamping member 31 near the material cavity 11. The pressure plate is adapted to the material cavity 11. The pressure plate can follow the clamping member 31 into the material cavity 11 to close the material cavity 11, or it can move out of the material cavity 11.

[0048] Please see Figure 1 and Figure 2 In some embodiments, the clamping member 31 is screwed into the connecting assembly 2, thereby allowing the clamping member 31 to be rotated to move the pressure plate toward or away from the material cavity 11. The connecting assembly 2 has a threaded hole 231, and the clamping member 31 can be a column with threads on its outer periphery, which is fitted into the threaded hole 231.

[0049] Please see Figure 1 and Figure 2 The clamping assembly 3 also includes a buffer 32 connected to the clamping member 31 and the connecting assembly 2 respectively. The buffer 32 is located on the side of the connecting assembly 2 away from the material chamber 11. The buffer 32 can provide cushioning to prevent the clamping member 31 from moving up and down when air is supplied. The buffer 32 can be a spring and can be sleeved on the outside of the clamping member 31.

[0050] Please see Figure 1 , Figure 2 and Figure 3The connecting assembly 2 includes a connecting seat 21, a rotating shaft 22, and a connecting arm 23. The connecting seat 21 is located at one end of the cylinder 1 near the pressing assembly 3. The rotating shaft 22 is rotatably mounted on the connecting seat 21, and its length extends along the length of the material cavity 11. One end of the connecting arm 23 is connected to the rotating shaft 22, and the other end extends radially along the rotating shaft 22. The pressing assembly 3 is located at the end of the connecting arm 23 away from the rotating shaft 22. The connecting arm 23 can rotate with the rotating shaft 22 to the top of the material cavity 11. When the connecting arm 23 rotates with the rotating shaft 22 to the top of the material cavity 11, the pressing member 31 can be rotated to move the pressure plate closer to or further away from the material cavity 11, thereby closing the material cavity 11. When the adhesive is placed in the material cavity 11, the connecting arm 23 rotates with the rotating shaft 22 to the top of the material cavity 11, thus facilitating the placement of the adhesive.

[0051] According to actual needs, the end of the connecting arm 23 away from the rotating shaft 22 is provided with a threaded hole 231.

[0052] Please see Figure 1 , Figure 2 and Figure 3 The connecting seat 21 includes a base plate 211 and a connecting post 212. The base plate 211 is disposed on the cylinder 1. One end of the connecting post 212 is connected to the base plate 211 and the other end extends along the length direction of the material cavity 11. The connecting post 212 is disposed on one side of the material cavity 11 and has a mounting hole 2121. The rotating shaft 22 is located in the mounting hole 2121, which facilitates the rotation of the rotating shaft 22 relative to the connecting post 212. The length of the mounting hole 2121 extends along the length direction of the material cavity 11.

[0053] According to actual needs, the base plate 211 is provided with a clearance hole 2111, which is coaxially arranged with the material cavity 11 to avoid the base plate 211 interfering with the placement of the rubber material; the connecting column 212 is vertically fixed on the surface of the base plate 211, and the connecting arm 23 is sleeved on the outside of the rotating shaft 22, and the connecting arm 23 can be supported by the connecting column 212.

[0054] Please see Figure 1 and Figure 2 The heating cylinder also includes a heat insulation sleeve 4, a mounting block 5, and a connector 6. The heat insulation sleeve 4 is located at one end of the cylinder 1 near the pressing component 3 and is fitted over the outside of the cylinder 1. The connecting component 2 is connected to the heat insulation sleeve 4 to prevent heat from being conducted to the connecting component 2. The mounting block 5 is located on the heat insulation sleeve 4, and the connector 6 is located on the mounting block 5 and electrically connected to the heating component to prevent heat from being conducted to the connector 6 and to avoid interference to the connector 6 due to excessive temperature.

[0055] According to actual needs, the base plate 211 is set on the side of the heat insulation sleeve 4 near the pressing component 3. The base plate 211 and the heat insulation sleeve 4 can be detachably connected, such as by screw connection. The contact area between the base plate 211 and the heat insulation sleeve 4 is large, which facilitates the fixed support of the connecting seat 21.

[0056] Please see Figure 1 and Figure 2 The heating cylinder also includes a base 7 detachably connected to the end of the cylinder 1 away from the connecting assembly 2. The base 7 seals the material cavity 11 and has a discharge hole 71 communicating with the material cavity 11. The base 7 is used to install on the flow channel assembly, and the discharge hole 71 communicates with the flow channel of the flow channel assembly. Since the base 7 is detachably connected to the cylinder 1, the base 7 can be replaced according to the different flow channels designed by the flow channel assembly, thereby improving the adaptability of the heating cylinder.

[0057] Please see Figure 1 and Figure 4 The cylinder 1 has a first mounting cavity 12 and a second mounting cavity 13, which are not connected to the material cavity 11. The heating assembly includes a heating element and a temperature sensor. The heating element is disposed in the cylinder 1 and located within the first mounting cavity 12; the temperature sensor is disposed in the cylinder 1 and located within the second mounting cavity 13. Both the first mounting cavity 12 and the second mounting cavity 13 extend along the length of the material cavity 11 and are located on the side wall of the cylinder 1. The heating element can be a heating rod, and the temperature sensor can be a temperature sensing rod.

[0058] According to actual needs, there can be multiple first mounting cavities 12 and heating elements, and multiple heating elements and multiple first mounting cavities 12 are assembled in a one-to-one correspondence. For example, there are two first mounting cavities 12 and heating elements, and the two first mounting cavities 12 are distributed with a second mounting cavity 13 between them. The two heating elements are assembled in the two first mounting cavities 12 in a one-to-one correspondence.

[0059] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A heating cylinder, characterized in that, include: A cylindrical body is provided with material cavities extending through both ends thereto. The cylindrical body is used to be installed on a flow channel assembly, and the material cavities are in communication with the flow channel assembly. A connecting component, one end of which is connected to the cylinder and the other end is located above the material chamber; A clamping assembly is disposed at one end of the connecting assembly located above the material cavity, the clamping assembly being at least partially movable into the material cavity to close one end of the material cavity; and... A heating component is disposed in the cylinder.

2. The heating cylinder according to claim 1, characterized in that, The clamping assembly includes: A clamping element, movably mounted to the connecting assembly, is movable toward or away from the material cavity; and... A pressure plate is connected to one end of the clamping member near the material cavity, and the pressure plate is adapted to the material cavity.

3. The heating cylinder according to claim 2, characterized in that, The clamping element is screwed into the connecting assembly.

4. The heating cylinder according to claim 2, characterized in that, The clamping assembly further includes a buffer member connected to the clamping member and the connecting assembly respectively, the buffer member being located on the side of the connecting assembly away from the material cavity.

5. The heating cylinder according to claim 1, characterized in that, The connection component includes: A connecting seat is disposed at one end of the cylinder near the clamping assembly; A rotating shaft, rotatably mounted on the connecting seat, the length of the rotating shaft extending along the length direction of the material cavity; and... A connecting arm, one end of which is connected to the rotating shaft and the other end of which extends radially along the rotating shaft, and the clamping assembly is disposed at the end of the connecting arm away from the rotating shaft; The connecting arm can rotate with the rotating shaft to the top of the material chamber.

6. The heating cylinder according to claim 5, characterized in that, The connector includes: A base plate is disposed on the cylinder; and, A connecting post is connected at one end to the base plate and at the other end extends along the length of the material cavity. The connecting post is located on one side of the material cavity and has a mounting hole. The rotating shaft is located in the mounting hole.

7. The heating cylinder according to claim 1, characterized in that, The heating cylinder also includes: A heat insulation sleeve is disposed at one end of the cylinder near the pressing assembly, the heat insulation sleeve is sleeved on the outside of the cylinder, and the connecting assembly is connected to the heat insulation sleeve; An mounting block is disposed on the heat insulation sleeve; and A connector is disposed on the mounting block and electrically connected to the heating assembly.

8. The heating cylinder according to claim 1, characterized in that, The heating cylinder also includes a base detachably connected to one end of the cylinder away from the connecting assembly, the base sealing the material cavity, and the base having a discharge hole communicating with the material cavity.

9. The heating cylinder according to claim 1, characterized in that, The cylinder is provided with a first mounting cavity and a second mounting cavity, and the first mounting cavity, the second mounting cavity and the material cavity are not connected to each other; The heating component includes: A heating element is disposed in the cylinder and located within the first mounting cavity; and, A temperature sensor is disposed in the cylinder and located in the second mounting cavity.

10. A jet valve, characterized in that, It includes a valve body, a flow channel assembly, and a heating cylinder as described in any one of claims 1-9, wherein the flow channel assembly is disposed on the valve body and the heating cylinder is connected to the flow channel assembly.

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