Heating device for glue injection machine

Abstract

The embodiment of the invention discloses a heating device for a glue injection machine, the heating device for the glue injection machine comprises a heating blanket, a fixing piece, a temperature sensor and a control mechanism, the heating blanket wraps a glue mixing pipe of the glue injection machine and is used for heating the glue mixing pipe, and a magic tape is arranged on the heating blanket and is used for fixing the heating blanket; the fixing piece is arranged on the heating blanket and used for fixing the heating blanket and the glue mixing pipe, the temperature sensor is located on the glue mixing pipe and used for detecting the temperature of raw materials in the glue mixing pipe, and the control mechanism is electrically connected with the heating blanket and the temperature sensor and used for controlling the heating blanket to heat the glue mixing pipe. The heating device for the glue injection machine is convenient to disassemble and assemble and accurate in temperature reaction.

Description

Technical Field

[0001] The invention relates to the technical field of glue injection machines, and in particular to a heating device for glue injection machines. Background Art

[0002] During the pultrusion production process in winter, the mixing hose of the glue injection machine is in direct contact with the outside world without a heating device, which makes the temperature of the raw materials in the mixing hose low and the activity poor. In this environment, the products produced by the glue injection machine are prone to various quality problems such as poor curing and poor infiltration. At the same time, the mixing hose is replaced frequently due to its characteristics. The commonly used method is to heat it by winding the heating tape and wrap it with thermal insulation cotton to keep it warm. The temperature sensor is fitted with the heating tape, and the temperature is fed back to the temperature controller for temperature control. The disadvantage of this method is that when replacing the mixing hose, the disassembly of the heating tape and the thermal insulation cotton is cumbersome and time-consuming. The temperature sensor cannot directly monitor the material temperature, resulting in the temperature not accurately reflecting the internal material temperature and untimely heating. Summary of the invention

[0003] The present invention aims to solve one of the technical problems in the related art to at least a certain extent. To this end, an embodiment of the present invention provides a heating device for a glue injection machine, which has the advantages of convenient assembly and disassembly and accurate temperature response.

[0004] The heating device for a glue injection machine according to an embodiment of the present invention comprises a heating blanket, a fixing part, a temperature sensor and a control mechanism. The heating blanket is wrapped around a mixing tube of the glue injection machine to heat the mixing tube. Velcro is arranged on the heating blanket to fix the heating blanket. The fixing part is arranged on the heating blanket to fix the heating blanket to the mixing tube. The temperature sensor is located on the mixing tube to detect the temperature of the raw materials inside the mixing tube. The control mechanism is electrically connected to the heating blanket and the temperature sensor to control the heating blanket to heat the mixing tube.

[0005] The heating device for the glue injection machine of the embodiment of the present invention is easy to assemble and disassemble, and the temperature response is accurate. The present application has the following advantages: the heating blanket can be quickly fixed and disassembled conveniently by Velcro, the fixing piece further fixes the heating blanket and the mixing tube to improve the fixing effect, the control mechanism controls the operation of the heating blanket to adjust the heating temperature in time, and the temperature sensor directly detects the internal temperature of the mixing tube to accurately reflect the raw material temperature.

[0006] In some embodiments, the heating device for the glue injection machine also includes a heat preservation structure, which includes a heat insulation layer and a reflective layer. The reflective layer is in contact with the heating blanket, and the heat insulation layer is used to isolate heat loss.

[0007] In some embodiments, the heat insulation layer is made of materials such as ceramic fiber, asbestos and glass fiber, and the reflective layer is made of aluminum foil or stainless steel foil.

[0008] In some embodiments, the fixing member includes a first clamp and a second clamp, the first clamp is detachably connected to the second clamp, and a clamping space is formed between the first clamp and the second clamp for clamping the heating blanket and the mixing hose.

[0009] In some embodiments, the heating device for the glue injection machine also includes a guide member, which includes a guide rod and a guide hoop, the guide rod and the guide hoop are respectively connected to the first clamp and the second clamp, and the guide rod penetrates into the guide hoop and is slidably connected to the guide hoop.

[0010] In some embodiments, the first clamp and the second clamp are connected via an elastic member, and the elastic member is used to pull the first clamp and the second clamp together to clamp the rubber mixing tube.

[0011] In some embodiments, the length of the elastic member is smaller than the diameter of the mixing tube.

[0012] In some embodiments, magnetic members are disposed on the first clamp and the second clamp respectively, and the magnetic members on the first clamp and the second clamp are magnetically attracted to each other to fix the first clamp and the second clamp.

[0013] In some embodiments, the heating device for the glue injection machine further includes a pressure sensor, which is arranged on the first clamp and / or the second clamp to detect the clamping pressure of the first clamp and the second clamp on the glue mixing tube.

[0014] In some embodiments, a phase change layer is added between the heat insulation layer and the reflective layer, and the phase change layer is used to absorb and release heat. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 Schematic diagram of the structure of a heating device for a glue injection machine according to an embodiment of the present invention.

[0016] Figure numerals: 1. mixing hose; 2. Velcro; 3. heating blanket; 4. fixing piece; 5. temperature sensor; 6. pressure sensor; 7. control mechanism; 8. thermal insulation structure. DETAILED DESCRIPTION

[0017] Embodiments of the present invention are described in detail below, and examples of the embodiments are shown in the accompanying drawings. The embodiments described below with reference to the accompanying drawings are exemplary and intended to be used to explain the present invention, but should not be understood as limiting the present invention.

[0018] The heating device for a glue injection machine according to an embodiment of the present invention comprises a heating blanket 3, a fixing part 4, a temperature sensor 5 and a control mechanism 7. The heating blanket 3 wraps around a mixing tube 1 of the glue injection machine and is arranged to heat the mixing tube 1. Velcro 2 is arranged on the upper part of the heating blanket 3 to fix the heating blanket 3. The fixing part 4 is arranged on the heating blanket 3 to fix the heating blanket 3 to the mixing tube 1. The temperature sensor 5 is located on the mixing tube 1 to detect the temperature of the raw materials inside the mixing tube 1. The control mechanism 7 is electrically connected to the heating blanket 3 and the temperature sensor 5 to control the heating blanket 3 to heat the mixing tube 1. The heating blanket 3 is wrapped around the outer side of the mixing tube 1 by the Velcro 2 to tightly fit and fix the heating blanket 3 to prevent the heating blanket 3 from loosening. The temperature sensor 5 is arranged on the mixing tube 1 to directly detect the temperature of the internal raw materials, which can more accurately adjust the temperature of the heating blanket 3 to change the temperature of the raw materials in the mixing tube 1. The control mechanism 7 is electrically connected with the heating blanket 3 and the temperature sensor 5 to receive the data of the temperature sensor 5 and control the operation of the heating blanket 3. The Velcro 2 cooperates with the fixing of the heating blanket 3 to quickly disassemble and assemble the heating blanket 3 to complete the maintenance and replacement of the mixing tube 1 and the heating blanket 3. The temperature sensor 5 directly detects the temperature of the raw materials to more accurately reflect the heating situation and make timely adjustments. The control mechanism 7 can use a PLC or a single-chip microcomputer to control the heating blanket 3.

[0019] In some embodiments, the heating device for the glue injection machine also includes a heat preservation structure, which includes a heat insulation layer and a reflective layer. The reflective layer is in contact with the heating blanket 3, and the heat insulation layer is used to isolate heat loss.

[0020] Specifically, the thermal insulation layer is made of materials with low thermal conductivity to reduce heat transfer to the outside and improve heating efficiency. The reflective layer reduces heat loss of the heating blanket 3 by reflecting heat. The thermal insulation structure can reduce heat loss of the heating blanket 3 through the cooperation of the thermal insulation layer and the reflective layer, thereby improving heating efficiency and reducing energy consumption.

[0021] In some embodiments, the heat insulating layer is made of ceramic fiber, asbestos and glass fiber materials, and the reflective layer is made of aluminum foil or stainless steel foil.

[0022] Specifically, the heat insulating layer can be a felt cloth made of ceramic fiber or glass fiber, etc. Ceramic fiber, asbestos and glass fiber have good thermal insulation properties. They can effectively prevent heat from being transferred outward through the material itself. The reflective layer uses metal foils such as aluminum foil or stainless steel foil to fit the shape of the heating blanket 3 well and reduce gaps. Aluminum foil and stainless steel foil have good reflective properties and can reflect the heat generated by the heating blanket 3 back to the heating area to reduce heat loss.

[0023] In some embodiments, the fixing member 4 includes a first clamp and a second clamp, the first clamp is detachably connected to the second clamp, and a clamping space is formed between the first clamp and the second clamp for clamping the heating blanket 3 and the mixing hose 1 .

[0024] Specifically, the first clamp and the second clamp clamp the heating blanket 3 to fix the heating blanket 3. The first clamp and the second clamp are arranged with clamping grooves corresponding to the shape of the rubber mixing tube 1. Both clamping grooves are arc-shaped grooves. The clamping grooves of the first clamp and the second clamp are arranged relative to each other. The two arc-shaped grooves are combined to form a clamping space, which can stably clamp the heating blanket 3 and the rubber mixing tube 1 to prevent the heating blanket 3 from loosening and shifting. The fixing member 4 is detachably matched with the two clamps to facilitate the flexible adjustment of the distance between the clamps according to the heating blanket 3 and the rubber mixing tube 1 to meet different work requirements. The first clamp and the second clamp are made of high temperature resistant and corrosion resistant materials, such as stainless steel or special alloys, to adapt to the high temperature and chemical corrosion in the working environment of the glue injection machine.

[0025] Optionally, in order to avoid sharp edges and excessive clamping force, flexible buffer coatings such as silicone pads and rubber pads can be arranged on the arc groove to increase the contact area between the clamp and the heating blanket 3 or the mixing hose 1 to avoid damage to the heating blanket 3 or the mixing hose 1, while ensuring the safety of the operator.

[0026] In some embodiments, the heating device for the glue injection machine also includes a guide member, which includes a guide rod and a guide hoop, the guide rod and the guide hoop are respectively connected to the first clamp and the second clamp, and the guide rod penetrates into the guide hoop and is slidably connected to the guide hoop.

[0027] Specifically, the guide rod of the guide member provides stable support and guidance during the movement of the heating blanket 3. The guide hoop is an annular or semi-annular structure. The inner diameter of the guide hoop matches the outer diameter of the guide rod so that the guide rod can slide smoothly in the guide hoop. The guide member can ensure that the first clamp and the second clamp maintain linear motion during the movement and fixation process to avoid uneven heating or damage to the equipment due to offset. The overall stability of the heating blanket 3 is increased through the cooperation of the guide rod and the guide hoop. Even in continuous operation or an environment with large vibration, the heating blanket 3 can remain stable and not easily fall off, so that the first clamp and the second clamp can be more easily and accurately installed in place, reducing the time for adjustment and calibration.

[0028] In some embodiments, the first clamp and the second clamp are connected via an elastic member, and the elastic member is used to pull the first clamp and the second clamp together to clamp the rubber mixing tube 1 .

[0029] Specifically, the elastic member can be a spring, an elastic band, a rubber pad or other elastic material, and its design needs to be able to withstand a certain force and maintain continuous elasticity. The elastic member can be installed at the connection part of the clamp, and the distance between the clamps can be adjusted by stretching or compressing the elastic member itself. The elastic member can automatically adjust the clamping force according to the diameter and shape of the mixing tube 1, adapt to mixing tubes 1 of different sizes and specifications, and improve the versatility of the equipment. The use of elastic members simplifies the adjustment process of the clamp, and the operator does not need to use additional tools to adjust the clamp, which improves the convenience of operation. Elastic clamping can avoid damage to the mixing tube 1 or the heating device due to excessive clamping, and protect the equipment from unnecessary damage. The elastic member between the first clamp and the second clamp can be in a stretched state, and the elastic member contracts so that the first clamp and the second clamp move toward each other to maintain the clamping of the heating blanket 3 and the mixing tube 1.

[0030] In some embodiments, the length of the elastic member is smaller than the diameter of the mixing tube 1 .

[0031] Specifically, the length of the elastic member is smaller than the diameter of the mixing rubber tube 1, and the two ends of the elastic member are respectively connected to the first clamp and the second clamp. Thus, the elastic member is in a stretched state, and the contraction of the elastic member causes the first clamp and the second clamp to move toward each other to maintain the clamping of the heating blanket 3 and the mixing rubber tube 1. The elastic member provides dynamic traction to the first clamp and the second clamp to prevent the clamps from over-clamping and damaging the heating blanket 3 and the mixing rubber tube 1.

[0032] In some embodiments, magnetic members are disposed on the first clamp and the second clamp respectively, and the magnetic members on the first clamp and the second clamp are magnetically attracted to each other to fix the first clamp and the second clamp.

[0033] Specifically, the magnetic part can be a permanent magnet or an electromagnet. The magnetic part is embedded in or fixed to the first clamp and the second clamp. The magnetic parts are arranged at corresponding positions on the first clamp and the second clamp to facilitate the magnetic attraction between the magnetic parts. The use of magnetic parts for adsorption and fixation can achieve rapid fixation and disassembly. When the heating blanket 3 needs to be maintained or replaced, the magnetic connection can be easily separated without complicated disassembly process. The magnetic adsorption has good stability.

[0034] In some embodiments, the heating device for the glue injection machine further includes a pressure sensor 6 , which is arranged on the first clamp and / or the second clamp to detect the clamping pressure of the first clamp and the second clamp on the rubber mixing tube 1 .

[0035] Specifically, the pressure sensor 6 can be arranged on the contact surface between the first clamp and the second clamp and the heating blanket 3 or the rubber mixing tube 1 to directly detect the pressure. Optionally, there are multiple pressure sensors 6, which are arranged at different positions of the first clamp and the second clamp to obtain more comprehensive pressure data. The pressure sensor 6 can monitor the clamping pressure of the rubber mixing tube 1 in real time to ensure that the pressure is within a suitable range, thereby ensuring that the rubber mixing tube 1 will not deform. The pressure sensor 6 cooperates with the control mechanism 7 to realize automatic adjustment of the clamping pressure, reduce manual intervention, and improve the level of automation.

[0036] In some embodiments, a phase change layer is added between the heat insulation layer and the reflective layer, and the phase change layer is used to absorb and release heat.

[0037] Specifically, the phase change layer is made of phase change material, which can absorb or release a large amount of heat within a specific temperature range, while its own temperature does not change much. The phase change layer can absorb or release heat according to changes in ambient temperature, thereby adjusting the temperature of the heating device and maintaining the stability of the working temperature. When there is excess heat, the phase change layer can absorb excess heat and reduce energy waste; when there is insufficient heat, the phase change layer releases the stored heat and reduces the energy consumption of the heating device. The phase change layer can extend the time that the heating blanket 3 maintains a constant temperature, reduce the number of heating times, and extend the life of the equipment. The phase change layer reduces the drastic temperature fluctuations during the heating process, improves equipment safety, and helps maintain a stable temperature in the mixing hose 1.

[0038] In the description of the present invention, it is to be understood that the terms “center”, “longitudinal”, “lateral”, “length”, “width”, “thickness”, “up”, “down”, “front”, “back”, “left”, “right”, “vertical”, “horizontal”, “top”, “bottom”, “inside”, “outside”, “clockwise”, “counterclockwise”, “axial”, “radial”, “circumferential”, etc., indicating orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as limiting the present invention.

[0039] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In the description of the present invention, the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0040] In the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral one; it can be a mechanical connection, an electrical connection, or communication with each other; it can be a direct connection, or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0041] In the present invention, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may mean that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Moreover, a first feature being "above", "above" or "above" a second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. A first feature being "below", "below" or "below" a second feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is lower in level than the second feature.

[0042] In the present invention, the terms "one embodiment", "some embodiments", "examples", "specific examples", or "some examples" etc. mean that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the described specific features, structures, materials or characteristics may be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art may combine and combine the different embodiments or examples described in this specification and the features of the different embodiments or examples, without contradiction.

[0043] Although the embodiments of the present invention have been shown and described above, it is to be understood that the above embodiments are illustrative and are not to be construed as limitations on the present invention. Changes, modifications, substitutions and variations of the above embodiments by those of ordinary skill in the art are all within the scope of protection of the present invention.

Claims

1. A heating device for a glue injection machine, characterized in that: include: A heating blanket, wherein the heating blanket wraps around the mixing tube of the glue injection machine to heat the mixing tube, and a Velcro is arranged on the upper side of the heating blanket to fix the heating blanket; A fixing member, the fixing member is arranged on the heating blanket to fix the heating blanket and the rubber mixing tube; A temperature sensor, the temperature sensor is located on the mixing tube and is used to detect the temperature of the raw materials inside the mixing tube; A control mechanism is electrically connected to the heating blanket and the temperature sensor to control the heating blanket to heat the mixing hose.

2. The heating device for glue injection machine according to claim 1, characterized in that: It also includes a heat preservation structure, which includes a heat insulation layer and a reflective layer. The reflective layer is in contact with the heating blanket, and the heat insulation layer is used to isolate heat loss.

3. The heating device for glue injection machine according to claim 2, characterized in that: The heat insulation layer is made of any one of ceramic fiber, asbestos or glass fiber, and the reflective layer is made of aluminum foil or stainless steel foil.

4. The heating device for glue injection machine according to claim 1, characterized in that: The fixing member comprises a first clamp and a second clamp, the first clamp is detachably connected to the second clamp, and a clamping space is formed between the first clamp and the second clamp for clamping the heating blanket and the rubber mixing tube.

5. The heating device for glue injection machine according to claim 4, characterized in that: It also includes a guide member, which includes a guide rod and a guide hoop. The guide rod and the guide hoop are connected to the first clamp and the second clamp respectively. The guide rod penetrates into the guide hoop and is slidably connected to the guide hoop.

6. The heating device for glue injection machine according to claim 5, characterized in that: The first clamp and the second clamp are connected via an elastic member, and the elastic member is used to pull the first clamp and the second clamp together to clamp the rubber mixing tube.

7. The heating device for a glue injection machine according to claim 6, characterized in that: The length of the elastic member is smaller than the diameter of the rubber mixing tube.

8. The heating device for glue injection machine according to claim 4, characterized in that: Magnetic members are arranged on the first clamp and the second clamp respectively, and the magnetic members on the first clamp and the second clamp are magnetically attracted to each other to fix the first clamp and the second clamp.

9. The heating device for a glue injection machine according to claim 4, characterized in that: It also includes a pressure sensor, which is arranged on the first clamp and / or the second clamp to detect the clamping pressure of the first clamp and the second clamp on the rubber mixing tube.

10. The heating device for glue injection machine according to claim 2, characterized in that: A phase change layer is added between the heat insulation layer and the reflective layer, and the phase change layer is used to absorb and release heat.

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