Rotary heating device of packaging machine head

Abstract

The utility model discloses a rotary heating device of a packaging machine head, which comprises a heat conduction sleeve, a heating rod and a slip ring, and the heating rod is sleeved in the heat conduction sleeve; the outer wall of the heating rod is in contact with the inner wall of the heat conduction sleeve; the slip ring comprises a rotor and a tubular stator; the rotor is connected with the heating rod and is rotationally arranged in the stator; the outer wall of the rotor is provided with a rotary conductive part, the inner wall of the stator is provided with a fixed conductive part, and the rotary conductive part contacts with the fixed conductive part; one end of the rotor wire is connected with the rotary conductive part, and the other end of the rotor wire is connected with the heating rod; one end of the stator wire is connected with a heating power supply, and the other end of the stator wire is connected with the fixed conductive part; the heat conduction effect and the temperature control precision are guaranteed, rotating friction between the heating rod and the rotating heat sealing roller is avoided, the electric leakage risk is avoided, and safety is improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of packaging, and in particular relates to a rotating heating device for a packaging machine head. Background Art

[0002] At present, in packaging machinery, when a conventional packaging machine head performs heat sealing, a heating rod is arranged in a tubular structure of a heat sealing roller and is fixed, while the heat sealing roller rotates.

[0003] Since there is often a large gap between the heating rod and the heat sealing roller, the heat conduction effect is affected, resulting in low temperature control accuracy; in addition, the rotational friction between the heating rod and the heat sealing roller will cause the risk of leakage. Utility Model Content

[0004] The purpose of the utility model is to provide a rotating heating device for a packaging machine head, which solves the problem in the prior art that when a conventional packaging machine head is heat-sealed, the gap between the fixed heating rod and the rotating heat-sealing roller affects heat conduction, reduces temperature control accuracy, and generates rotational friction between the two, leading to the risk of leakage. It is beneficial to ensure the heat conduction effect and temperature control accuracy, avoid rotational friction between the heating rod and the rotating heat-sealing roller, avoid the risk of leakage, and improve safety.

[0005] In order to achieve the above purpose, the present invention adopts the following technical solutions:

[0006] The utility model provides a packaging machine head rotary heating device, comprising a heat-conducting sleeve, a heating rod and a slip ring, wherein the heating rod is sleeved in the heat-conducting sleeve; the outer wall of the heating rod is in contact with the inner wall of the heat-conducting sleeve; the slip ring comprises a rotor and a tubular stator; the rotor is connected to the heating rod and is rotatably arranged in the stator; a rotating conductive part is provided on the outer wall of the rotor, and a fixed conductive part is provided on the inner wall of the stator, and the rotating conductive part is in contact with the fixed conductive part; the rotor is provided with a rotor wire, one end of the rotor wire is connected to the rotating conductive part, and the other end is connected to the heating rod; the stator is provided with a stator wire, one end of the stator wire is used to connect to a heating power supply, and the other end is connected to the fixed conductive part.

[0007] In this utility model, the packaging machine head rotary heating device comprises a heat-conducting sleeve disposed between the heat-sealing roller and the heating rod, thereby eliminating the gap between the two, facilitating heat conduction between them and improving temperature control accuracy. The heat-sealing roller drives the heat-conducting sleeve, the heating rod, and the rotor of the slip ring to rotate together, thereby eliminating rotational friction, avoiding the risk of electrical leakage, and improving safety. Current is conducted through the slip ring, facilitating power and heating of the rotating heating rod.

[0008] Preferably, the heat sealing roller is provided with a tubular structure, and the heat conductive sleeve is sleeved in the heat sealing roller; the inner wall of the heat sealing roller contacts the outer wall of the heat conductive sleeve.

[0009] Preferably, the inner wall of the heat-conducting sleeve is provided with a convex-concave undulating structure.

[0010] Preferably, one end of the rotor wire and one end of the heating wire are connected through a terminal cap.

[0011] Preferably, two terminal connection holes are provided on one side of the terminal cap, and one end of the rotor wire and one end of the heating wire are connected by being inserted into the two terminal connection holes respectively; the other end of the heating wire is connected to the heating rod.

[0012] Preferably, the rotor is configured to be tubular, and one end of the rotor wire and one end of the heating wire both pass through the rotor.

[0013] Preferably, the outer wall of the heating wire is provided with a hard sleeve, and the rotor and the heating rod are connected via the hard sleeve; the inner wall of the rotor is provided with a slot, and the hard sleeve is engaged and connected in the slot.

[0014] Preferably, the stator is connected to the bracket.

[0015] Preferably, the bracket is configured to be plate-shaped and has a fixing hole, and the stator is disposed in the fixing hole.

[0016] Preferably, the bracket is provided with a wire threading hole and a terminal fixing block, one end of the stator wire passes through the wire threading hole, and the terminal fixing block is provided with at least one pair of terminal fixing holes;

[0017] The terminal fixing block and the terminal cap are arranged on one side of the bracket, and the heating rod is arranged on the other side of the bracket;

[0018] One end of the stator conductor is inserted into one of the paired terminal fixing holes, and the other is used to insert the power line of the heating power supply.

[0019] The packaging machine head rotary heating device provided by the utility model has the following beneficial effects:

[0020] 1. The packaging machine head rotating heating device can drive the heat conducting sleeve, the heating rod and the rotor of the slip ring to rotate together through the heat sealing roller, so as to eliminate the rotating friction; the gap between the heating rod and the heat sealing roller can be eliminated through the heat conducting sleeve, which is beneficial to the heat conduction between the heating rod and the heat sealing roller; the stator wire of the slip ring is convenient for connecting the heating power supply, the stator wire, the rotor wire and the heating rod are connected, and the rotor and the heating rod rotate together, the current is conducted through the slip ring, and the rotating heating rod is conveniently powered and heated; so as to solve the problem that the gap between the fixed heating rod and the rotating heat sealing roller affects the heat conduction, reduces the temperature control precision, and causes the risk of electric leakage due to the rotating friction between the two in the prior art, which is beneficial to guarantee the heat conduction effect and the temperature control precision, so that the temperature control is accurate, the heat sealing consistency is improved; the rotating friction between the heating rod and the rotating heat sealing roller can be avoided, the risk of electric leakage is avoided, and the safety is improved; and the energy saving and emission reduction performance is improved, the power consumption is reduced, and the cost is saved.

[0021] 2. The packaging machine head rotating heating device is convenient to install, does not need to smear lubricating oil on the contact surface of the heating rod, the heat conducting sleeve and the heat sealing roller, avoids lubricating oil leakage, and has no peculiar smell. BRIEF DESCRIPTION OF DRAWINGS

[0022] Figure 1 is a first view structure schematic view of the packaging machine head rotating heating device provided by an embodiment of the utility model.

[0023] Figure 2 is a second view structure schematic view of the packaging machine head rotating heating device provided by an embodiment of the utility model.

[0024] Figure 3 is a front view of the packaging machine head rotating heating device provided by an embodiment of the utility model.

[0025] Figure 4 is a structure schematic view of the wiring terminal cap of the packaging machine head rotating heating device provided by an embodiment of the utility model.

[0026] Figure 5 is a structure schematic view of the packaging machine head rotating heating device provided by another embodiment of the utility model.

[0027] Figure 6 is a front view of the packaging machine head rotating heating device provided by another embodiment of the utility model.

[0028] Markings in the drawing:

[0029] 1 is a thermal sleeve, 2 is a heating rod, 210 is a heating wire, 3 is a slip ring, 310 is a rotor, 311 is a rotor wire, 312 is a terminal cap, 313 is a terminal connection hole, 320 is a stator, 4 is an opening, 5 is a bracket, 510 is a threading hole, 520 is a terminal fixing block, 521 is a terminal fixing hole, and 100 is a packaging machine head component. DETAILED DESCRIPTION

[0030] The present invention will be further described in detail below through the accompanying drawings and specific implementation methods.

[0031] Example

[0032] Please refer to Figures 1 to 3 This embodiment provides a packaging machine head rotary heating device, including a heat-conducting sleeve 1, a heating rod 2 and a slip ring 3, wherein the heating rod 2 is sleeved in the heat-conducting sleeve 1; the outer wall of the heating rod 2 contacts the inner wall of the heat-conducting sleeve 1; the slip ring 3 includes a rotor 310 and a tubular stator 320; the rotor 310 is connected to the heating rod 2 and is rotatably arranged in the stator 320; a rotating conductive part is provided on the outer wall of the rotor 310, and a fixed conductive part is provided on the inner wall of the stator 320, and the rotating conductive part contacts the fixed conductive part; the rotor 310 is provided with a rotor wire 311, one end of the rotor wire 311 is connected to the rotating conductive part, and the other end is connected to the heating rod 2; the stator 320 is provided with a stator wire, one end of the stator wire is used to connect to a heating power supply, and the other end is connected to the fixed conductive part.

[0033] The packaging machine head rotary heating device of this embodiment, when in use, has a heat sealing roller configured as a tubular structure, with a thermally conductive sleeve 1 sleeved within the heat sealing roller; the inner wall of the heat sealing roller contacts the outer wall of the thermally conductive sleeve 1. When the heat sealing roller rotates, it drives the thermally conductive sleeve 1, the heating rod 2, and the rotor 310 of the slip ring 3 to rotate together, thereby eliminating rotational friction, avoiding the risk of electrical leakage, and improving safety. The thermally conductive sleeve 1 eliminates the gap between the heating rod 2 and the heat sealing roller, facilitating heat conduction between the heating rod 2 and the heat sealing roller, and improving temperature control accuracy. The stator conductors of the slip ring 3 facilitate connection to a heating power source. By connecting the stator conductors, rotor conductors 311, and the heating rod 2, and by rotating the rotor 310 together with the heating rod 2, current is conducted through the slip ring 3, facilitating power supply and heating of the rotating heating rod 2. This packaging machine head rotary heating device is applicable to packaging machines and heat sealing machines with similar heat sealing roller and heating rod 2 structures.

[0034] Specifically, the heat-conducting sleeve 1 is a copper sleeve. The central axes of the heat-conducting sleeve 1, the heating rod 2, the rotor 310, the stator 320 and the heat-sealing roller coincide with each other.

[0035] In some embodiments, the inner wall of the thermal sleeve 1 is provided with a convex and concave structure, so as to facilitate the thermal sleeve 1 to closely contact and fix the heating rod 2 and improve the heat transfer effect.

[0036] Specifically, the convex-concave structure includes raised portions and recessed portions, and the raised portions and recessed portions may be arranged in groups at intervals and evenly distributed on the inner wall of the thermal sleeve 1 .

[0037] Please refer to Figures 1 to 3 、 Figure 5 and Figure 6 An opening 4 is provided on the side wall of the heat-conducting sleeve 1 , so that the heat-conducting sleeve 1 can be placed on the heating rod 2 through the opening 4 .

[0038] Please refer to Figures 1 to 6 In some embodiments, one end of the rotor wire 311 and one end of the heating wire 210 are connected via a terminal cap 312. The terminal cap 312 allows for quick and easy connection of the rotor wire 311 and the heating wire 210, thereby improving efficiency.

[0039] Specifically, two terminal connection holes 313 are defined on one side of the terminal cap 312. One end of the rotor wire 311 and one end of the heating wire 210 are connected by inserting them into the two terminal connection holes 313, respectively. The other end of the heating wire 210 is connected to the heating rod 2. By inserting the rotor wire 311 and the heating wire 210 on the same side of the terminal cap 312, wiring speed and efficiency are further improved, and wiring is more organized.

[0040] For example, the inner walls of the connection holes of the wiring terminals are each provided with a connection conductive portion; the wiring terminal cap 312 has a built-in connection wire, and both ends of the connection wire are respectively connected to the connection conductive portions in the two connection holes of the wiring terminals.

[0041] Please refer to Figures 1 to 3 、 Figure 5 and Figure 6 In some embodiments, the rotor 310 is configured as a tube, and one end of the rotor wire 311 and one end of the heating wire 210 both pass through the rotor 310. By configuring the rotor 310 as a hollow tube, the slip ring 3 becomes a through-core slip ring, making it easier to pass the rotor wire 311 and the heating wire 210 through the interior of the rotor 310 and to connect their ends to the terminal cap 312.

[0042] Specifically, the outer wall of the heating wire 210 is provided with a hard sleeve, and the rotor 310 is connected to the heating rod 2 via the hard sleeve. The inner wall of the rotor 310 is provided with a slot, and the hard sleeve is engaged with the slot. The hard sleeve facilitates the connection between the rotor 310 and the heating rod 2, allowing the rotor 310 to rotate with the heating rod 2. The slot provided on the inner wall of the rotor 310 facilitates the engagement of the hard sleeve.

[0043] Please refer to Figure 5 and Figure 6 In some embodiments, the stator 320 is connected to the bracket 5. Thus, the slip ring 3 can be fixed to the bracket 5, so that the bracket 5 supports the slip ring 3 and improves the structural stability.

[0044] Specifically, the bracket 5 is provided with a plate-like structure, and a fixing hole is opened on the plate-like structure, and the stator 320 is arranged in the fixing hole, thereby further facilitating the stable connection of the slip ring 3 to the bracket 5 .

[0045] For example, the stator 320 is disposed in the fixing hole with interference fit, or the outer wall of the stator 320 is connected to the inner wall of the fixing hole.

[0046] The bracket 5 defines a wire threading hole 510 and a terminal block 520. One end of the stator wire passes through the threading hole 510. The terminal block 520 defines at least one pair of terminal holes 521. One end of the stator wire is inserted into one of the paired terminal holes 521, while the other is used to insert the power cord of the heating power supply. This facilitates connection between the heating power supply and the stator wire via the terminal block 520, facilitating power supply and heating of the heating rod 2.

[0047] The terminal fixing block 520 and the terminal cap 312 are arranged on one side of the bracket 5, and the heating rod 2 is arranged on the other side of the bracket 5; thereby facilitating the regular routing of the rotor wire 311, the stator wire and the heating wire 210.

[0048] For example, the inner walls of the terminal fixing holes are each provided with a wiring conductive portion; the terminal fixing block 520 has a built-in terminal wire, and both ends of the terminal wire are respectively connected to the wiring conductive portions in the two terminal fixing holes 521 .

[0049] The bracket 5 is configured as an epoxy plate bracket consisting of a rectangular epoxy plate. The main body of the epoxy plate bracket is fixed to the packaging machine head. The rectangular epoxy plate has fixing holes at the four corners, into which the four slip rings 4 are fixed. The epoxy plate bracket is heat-resistant and insulated, protecting the slip rings 3.

[0050] Four heating rods 2 are provided, which can be configured as heating tubes. A single heating rod 2 can be powered by 4V, and the resistance of all four heating rods 2 is the same. Two of the heating rods 2 are provided with temperature sensors for controlling the heating temperature of the heating rods 2. The heating rods 2 can be adjustable temperature heating rods as in conventional products. The heating duty cycle of the heating rods 2 can be controlled by the temperature sensors. Specifically, a contactless thyristor can be used to control the on / off mode. For example, a contactless thyristor switch as in conventional products can be provided in the heating circuit of the heating rods 2.

[0051] The other two heating rods 2 are not provided with temperature sensors, but due to the series structure of the heating rods 2, the heating amounts are the same.

[0052] The four heating rods 2 can be arranged into two groups, and the two groups of heating rods 2 are used for heating the upper and lower heating rollers 4 respectively.

[0053] Specifically, components such as the heater rod 2, slip ring 3, terminal cap 312, and terminal fixing block 520 can be made from existing products. The terminal cap 312 can be a conventional press-type terminal cap, with its two terminal connection holes 313 located on the same side, creating a single-direction wiring structure. The slip ring 3, used for electrical energy transmission, can be made of a high-temperature-resistant material and be capable of 360° rotation.

[0054] Figure 5 and Figure 6 In the embodiment, the packaging machine head component 100 can be a supporting component of the packaging machine head and can be used to rotatably install the heat sealing roller 4.

[0055] The above embodiments are provided for illustrative purposes only and are not intended to limit the scope of implementation. Those skilled in the art will readily appreciate that other variations or modifications based on the above descriptions are possible. It is not necessary and impossible to provide an exhaustive list of all implementations. Obvious variations or modifications arising therefrom remain within the scope of protection of the present invention.

[0056] It should be noted that, in the absence of conflict, the embodiments of the present invention and the features therein can be combined with each other.

[0057] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to has a specific orientation, is constructed and operates in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first", "second", etc. are used for descriptive purposes only, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, features defined as "first", "second", etc. may explicitly or implicitly include one or more of the features. In the description of the present invention, unless otherwise specified, "multiple" means two or more.

[0058] In the description of this utility model, it should be noted that, unless otherwise expressly specified or limited, the terms "installed," "connected," and "connected" should be understood in a broad sense. For example, they can refer to fixed connections, detachable connections, or integral connections; mechanical connections, electrical connections; direct connections, indirect connections through an intermediate medium, and internal communication between two components. Those skilled in the art will understand the specific meanings of the above terms in this utility model based on specific circumstances.

Claims

1. A packaging machine head rotary heating device, characterized in that: include: Thermal sleeve; A heating rod, sleeved in the heat-conducting sleeve; The outer wall of the heating rod contacts the inner wall of the thermal sleeve; The slip ring includes a rotor and a tubular stator; the rotor is connected to the heating rod and is rotatably disposed in the stator; A rotating conductive portion is provided on the outer wall of the rotor, and a fixed conductive portion is provided on the inner wall of the stator, wherein the rotating conductive portion contacts the fixed conductive portion; The rotor is provided with a rotor wire, one end of the rotor wire is connected to the rotating conductive part, and the other end is connected to the heating rod; The stator is provided with a stator wire, one end of the stator wire is used to connect to a heating power source, and the other end is connected to the fixed conductive part.

2. The packaging machine head rotary heating device according to claim 1, characterized in that: The heat sealing roller is provided with a tubular structure, and the heat conductive sleeve is sleeved in the heat sealing roller; the inner wall of the heat sealing roller contacts the outer wall of the heat conductive sleeve.

3. The packaging machine head rotary heating device according to claim 1, characterized in that: The inner wall of the heat-conducting sleeve is provided with a convex-concave undulating structure.

4. The packaging machine head rotary heating device according to any one of claims 1 to 3, characterized in that: One end of the rotor wire and one end of the heating wire are connected through a terminal cap.

5. The packaging machine head rotary heating device according to claim 4, characterized in that: Two terminal connection holes are provided on one side of the terminal cap, and one end of the rotor wire and one end of the heating wire are connected by being inserted into the two terminal connection holes respectively; the other end of the heating wire is connected to the heating rod.

6. The packaging machine head rotary heating device according to claim 5, characterized in that: The rotor is configured to be tubular, and one end of the rotor wire and one end of the heating wire both pass through the rotor.

7. The packaging machine head rotary heating device according to claim 6, characterized in that: The outer wall of the heating wire is provided with a hard sleeve, and the rotor and the heating rod are connected through the hard sleeve; the inner wall of the rotor is provided with a slot, and the hard sleeve is engaged and connected in the slot.

8. The packaging machine head rotary heating device according to claim 7, characterized in that: The stator is connected to the bracket.

9. The packaging machine head rotary heating device according to claim 8, characterized in that: The bracket is configured to be plate-shaped and has a fixing hole, and the stator is configured to be disposed in the fixing hole.

10. The packaging machine head rotary heating device according to claim 9, characterized in that: The bracket is provided with a wire threading hole and a terminal fixing block, one end of the stator wire passes through the wire threading hole, and the terminal fixing block is provided with at least one pair of terminal fixing holes; The terminal fixing block and the terminal cap are arranged on one side of the bracket, and the heating rod is arranged on the other side of the bracket; One end of the stator conductor is inserted into one of the paired terminal fixing holes, and the other is used to insert the power line of the heating power supply.

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