Novel packaging machine heating device

Abstract

The utility model relates to a novel packaging machine heating device, and relates to the technical field of packaging machinery, the novel packaging machine heating device comprises a metal heating sheet, a connecting block and a control assembly, and the connecting block is arranged on the top side of the metal heating sheet and is detachably connected with the metal heating sheet; the control assembly is electrically connected with the metal heating piece and used for controlling the temperature of the metal heating piece. The control assembly comprises a temperature acquisition probe, a PID module and a PLC module with preset set temperature which are electrically connected in sequence, the temperature acquisition probe is used for detecting the real-time temperature of the metal heating sheet, and the PID module is electrically connected with the metal heating sheet. The power of the metal heating piece is controlled through the control assembly, the rapid heating and cooling effects are achieved, damage to products can be reduced, and the heating efficiency is improved.

Description

Technical Field

[0001] The present application relates to the technical field of packaging machinery, and in particular to a novel heating device for packaging machines. Background Art

[0002] At present, the packaging machines heat the small packages with transparent paper, beautify the small packages with transparent paper, heat the strip boxes with transparent paper, and beautify the strip boxes with transparent paper by heating the whole stainless steel block with electric heating wire and then heating the transparent paper. This process usually requires that when the equipment is turned on, the heater should be heated first until the temperature reaches the set range before the machine can be turned on. Heating usually takes 3-5 minutes.

[0003] However, as the machine speed changes, the required heater temperature will also change. Due to the current low heating efficiency, the heating temperature can only be kept constant for a long time. This causes some of the heated products to be overheated when the conveying speed is slow, and the transparent paper on the surface is burned, resulting in defective products. Utility Model Content

[0004] In order to achieve the purpose of rapid heating and cooling of the heating device, reduce damage to the product and improve heating efficiency, the present application provides a new packaging machine heating device.

[0005] The present application provides a novel packaging machine heating device adopts the following technical solution:

[0006] A novel packaging machine heating device comprises:

[0007] Metal heating plate;

[0008] Connecting block: placed on the top side of the metal heating plate and detachably connected to the metal heating plate;

[0009] Control component: electrically connected to the metal heating plate and used to control the temperature of the metal heating plate;

[0010] The control component includes a temperature acquisition probe, a PID module and a PLC module with a preset set temperature which are electrically connected in sequence. The temperature acquisition probe is used to detect the real-time temperature of the metal heating plate, and the PID module is electrically connected to the metal heating plate.

[0011] By adopting the above technical solution, the metal heating plate generates heat when it is powered on, and the heating plate transfers the heat generated by the metal heating plate to the product to complete the packaging of the product. When the metal heating plate is working, the temperature acquisition probe can test the temperature of the metal heating plate and transfer the real-time temperature to the PLC module. The PLC module calculates the control quantity based on the preset set temperature and inputs the control quantity to the PID controller. After receiving the control quantity information, the PID controller controls the power of the metal heating plate to achieve the purpose of heating and cooling the heating device, thereby ensuring production efficiency and product efficiency.

[0012] Optionally, the control component also includes a display screen for displaying real-time temperature and set temperature, and the display screen is electrically connected to the PLC module.

[0013] By adopting the above technical solution, the display screen can intuitively display the real-time temperature and the set temperature, so that the staff can judge whether the metal heating plate is in a normal working state, and it is also convenient to adjust the temperature of the metal heating plate.

[0014] Optionally, the temperature acquisition probe includes a temperature sensing wire and a protective cover arranged outside the temperature sensing wire. A temperature measuring port is provided in the center of the metal heating plate. The input end of the temperature sensing wire passes through the connecting block and is inserted into the temperature measuring port. The output end of the temperature sensing wire is electrically connected to the PID module.

[0015] By adopting the above technical solution, the protective cover can better protect the temperature sensing wire and prevent the metal heating plate from being too high to damage the temperature sensing wire.

[0016] Optionally, it also includes a guide sleeve mounted on the protective sleeve and a mounting screw that can be set on the connecting block, the protective sleeve is surrounded by a convex edge, one end of the guide sleeve is connected to the mounting screw, and the other end of the guide sleeve abuts against the convex edge.

[0017] By adopting the above technical solution, before the metal heating plate starts working, the temperature sensing wire with a guide sleeve on the outer end is inserted into the temperature measuring port. At this time, the mounting screws are tightly pressed against the top wall of the connecting block. When the temperature sensing wire needs to be replaced or repaired, the guide sleeve can be pulled up, which is convenient for disassembly and assembly.

[0018] Optionally, a heating plate is also included, which is detachably connected to the metal heating plate and is used to transfer heat. Both ends of the heating plate are extended with heating heads that sequentially penetrate the metal heating plate and the connecting block, and the surface of the heating plate is coated with an anti-adhesion coating.

[0019] By adopting the above technical solution, the anti-stick coating is applied on the surface of the heating plate, which can prevent the transparent paper from sticking to the heating block due to softening due to heating when the heating plate heats the transparent paper. This has a good protective effect on the heating plate and also prevents the influence of the sticking transparent paper on the subsequent packaging work, thereby ensuring the smooth progress of the packaging work.

[0020] Optionally, a cooling channel for cooling the metal heating plate is provided on a side of the connecting block close to the metal heating plate, and a cooling medium can flow into the cooling channel.

[0021] By adopting the above technical solution and setting up a cooling channel, when cooling is needed, not only can the PID module reduce the power of the metal heating plate to cool it down, but the cooling channel also participates in the cooling work. By injecting cooling medium into the cooling channel, the heat on the metal heating plate is carried away, achieving a rapid cooling effect.

[0022] Optionally, an inlet and an outlet are respectively provided on both sides of the connection block, and the inlet and the outlet are both communicated with the cooling flow channel and are connected with an adjustable joint for controlling the flow rate of the cooling medium.

[0023] By adopting the above technical solution, adjustable joints are set at the inlet and outlet, and the flow rate of the cooling medium is adjusted by rotating the adjustable joints to achieve the purpose of accurately adjusting the temperature.

[0024] Optionally, a conductive member is vertically arranged on the metal heating plate, and the conductive member is electrically connected to the metal heating plate and the PID module respectively, and an avoidance hole for the conductive member to pass through is opened on the connecting block.

[0025] By adopting the above technical solution, the connection between the PID module and the metal heating plate is achieved through a conductive member. The conductive member can be a wire that is welded to the metal heating plate to form conductivity, or a metal plate that is inserted into the metal heating plate to form a detachable connection. There are various connection methods.

[0026] Optionally, a sealing ring is arranged around one side of the conductive member connected to the metal heating plate, the avoidance hole is arranged in a step shape, and the sealing ring is sealed and connected to the wall surface of the avoidance hole.

[0027] By adopting the above technical solution, the sealing ring can achieve a better sealing effect. When liquid is selected as the cooling medium, it can also prevent the liquid from leaking and causing damage to the conductive parts, thereby achieving a better protective effect.

[0028] Optionally, a heat transfer plate is arranged between the metal heating sheet and the heating plate, and the heat transfer plate is made of any one of thermal conductive silicone grease, thermal conductive rubber or thermal conductive ceramic.

[0029] By adopting the above technical solution and providing a heat transfer plate, the efficiency of the metal heating plate in transferring heat to the heating plate can be improved, which is more energy-saving and efficient.

[0030] In summary, the present application includes at least one of the following beneficial technical effects:

[0031] 1. The present application is provided with a control component to regulate the metal heating plate. When the metal heating plate is working, the temperature acquisition probe can test the temperature of the metal heating plate and transmit the real-time temperature to the PLC module. The PLC module calculates the control quantity according to the preset set temperature and inputs the control quantity to the PID controller. After receiving the control quantity information, the PID controller controls the power of the metal heating plate to achieve the purpose of heating and cooling the heating device, thereby ensuring production efficiency and product efficiency.

[0032] 2. The present application is provided with a display screen which can intuitively display the real-time temperature and the set temperature, so that the staff can judge whether the metal heating plate is in a normal working state, and it is also convenient to adjust the temperature of the metal heating plate.

[0033] 3. The present application is provided with a cooling channel. When cooling is required, not only can the PID module reduce the power of the metal heating plate to cool down, but the cooling channel is also involved in the cooling work. By injecting cooling medium into the cooling channel, the heat on the metal heating plate is carried away, thereby achieving a rapid cooling effect. In addition, adjustable joints are provided at the inlet and outlet. By rotating the adjustable joints, the flow rate of the cooling medium can be adjusted to achieve the purpose of accurately adjusting the temperature. BRIEF DESCRIPTION OF THE DRAWINGS

[0034] Figure 1 It is a schematic diagram of the overall structure of the new packaging machine heating device in this application;

[0035] Figure 2 It is a three-dimensional structural schematic diagram of the novel packaging machine heating device in the present application after removing the control component;

[0036] Figure 3 It is a schematic diagram of the exploded structure of the novel packaging machine heating device in the present application after removing the control component;

[0037] Figure 4 It is a schematic diagram of the three-dimensional structure of the connecting block in this application;

[0038] Figure 5 It is a schematic cross-sectional view of the novel packaging machine heating device in the present application without the control component;

[0039] Figure 6 yes Figure 5 A partial enlarged schematic diagram of part A.

[0040] In the figure, 1. metal heating plate; 11. temperature measuring port; 2. connecting block; 21. cooling channel; 22. inlet; 23. outlet; 24. fastening hole; 25. avoidance hole; 3. heating plate; 31. heating head; 311. first fastening rod; 312. second fastening rod; 4. control component; 41. temperature acquisition probe; 411. temperature sensing line; 412. protective cover; 413. guide sleeve; 414. mounting screw; 415. flange; 42. PLC module; 43. PID module; 44. display screen; 5. anti-adhesion coating; 6. adjustable joint; 7. conductive part; 8. sealing ring; 9. heat transfer plate; 10. stud; 20. fastening nut. DETAILED DESCRIPTION

[0041] The following is combined with Figure 1 -Attached Figure 6 , further details of this application are given.

[0042] A new type of heating device for packaging machine, refer to Figure 1 and Figure 2 , including a metal heating sheet 1, a connecting block 2, a heating plate 3 and a control assembly 4, wherein the connecting block 2 is placed on the top side of the metal heating sheet 1 and is detachably connected to the metal heating sheet 1; a stud 10 for connecting to an external structure is connected to the top of the connecting block 2, and a control assembly 4 is provided. Figure 3 The heating plate 3 is detachably connected to the metal heating plate 1 and is used to transfer heat. Both ends of the heating plate 3 protrude and extend with heating heads 31 that sequentially penetrate the metal heating plate 1 and the connecting block 2; the control component 4 is electrically connected to the metal heating plate 1 and is used to control the temperature of the metal heating plate 1.

[0043] Reference Figure 3 and Figure 4 The heating head 31 includes a first fastening rod 311 and a second fastening rod 312 connected in sequence. The outer diameter of the first fastening rod 311 is larger than the outer diameter of the second fastening rod 312. Correspondingly, a step-shaped fastening hole 24 is provided on the connecting block 2 for the heating head 31 to extend into. The connecting part of the first fastening rod 311 and the second fastening rod 312 is provided with a rounded corner to ensure a smooth transition. When the heating head 31 passes through the metal heating plate 1 and the connecting block 2 in sequence, it plays a good guiding role. A fastening nut 20 is provided at the top of the connecting block 2. When the first fastening rod 311 extends out of the fastening hole 24, the fastening nut 20 is threadedly matched with the first fastening rod 311 to complete the detachable connection.

[0044] Furthermore, in other embodiments, the metal heating plate 1 and the heating plate 3 can be integrally formed, and the heating head 31 is directly connected to the metal heating plate 1 and only includes a first fastening rod 311, and the connecting end of the first fastening rod 311 and the metal heating plate 1 is provided with a rounded corner to ensure a smooth transition.

[0045] Reference Figure 1 and Figure 5 A heat transfer plate 9 is provided between the metal heating sheet 1 and the heating plate 3. The heat transfer plate 9 is made of any one of thermally conductive silicone grease, thermally conductive rubber sheet or thermally conductive ceramic. In this embodiment, the heat transfer plate 9 is made of thermally conductive ceramic to improve the heat transfer effect. When the metal heating sheet 1 is powered on, heat is generated and transferred to the heat transfer plate 9. The heat transfer plate 9 further transfers the heat to the heating plate 3. The heating plate 3 heats the plastic paper to complete the packaging action.

[0046] Furthermore, in order to prevent the plastic paper from partially adhering to the heating plate 3 after being heated, the surface of the heating plate 3 is coated with an anti-adhesion coating 5, and the anti-adhesion coating 5 is made of any one of a polymer coating, a ceramic coating or a PTFE coating. In the present embodiment, the anti-adhesion coating 5 is made of a ceramic material to form a smooth surface. It should be noted that the anti-adhesion coating 5 is only applied to the side of the heating plate 3 away from the metal heating plate 1 to save production costs.

[0047] Reference Figure 4 and Figure 5 A cooling channel 21 for cooling the metal heating plate 1 is provided on one side of the connecting block 2 close to the metal heating plate 1. The cooling channel 21 is arranged in a winding manner to increase the opening path length of the cooling channel 21 and enhance the cooling effect. A cooling medium can be introduced into the cooling channel 21. The cooling medium can be a liquid cooling medium, such as cooling oil or cooling water, or a gaseous cooling medium, such as air. In the present embodiment, air is used as the cooling medium to reduce the cooling cost.

[0048] Furthermore, an inlet 22 and an outlet 23 are respectively provided on both sides of the connecting block 2. Both the inlet 22 and the outlet 23 are connected to the cooling channel 21 and are connected to an adjustable joint 6 for controlling the flow rate of the cooling medium. The adjustable joint 6 has a knob, and the flow rate of the cooling medium can be controlled by rotating the knob.

[0049] Reference Figure 1 The control component 4 includes a temperature acquisition probe 41, a PLC module 42 with a preset set temperature, and a PID module 43 which are electrically connected in sequence. The temperature acquisition probe 41 is used to detect the real-time temperature of the metal heating plate 1, and the PID module 43 is electrically connected to the metal heating plate 1.

[0050] Reference Figure 5 and Figure 6 , wherein the temperature collection probe 41 includes a temperature sensing wire 411 and a protective cover 412 sleeved on the temperature sensing wire 411, and a temperature measuring port 11 is opened in the center of the metal heating plate 1, a through-connecting block 2 at one end of the temperature sensing wire 411 is arranged and inserted into the temperature measuring port 11, and the other end of the temperature sensing wire 411 is electrically connected to the PID module 43.

[0051] In the process of the metal heating plate 1 heating the plastic paper, as time changes, the plastic paper is completely heated, and the preset temperature of the metal heating plate 1 after the time change also begins to change. When the real-time temperature detected by the temperature acquisition probe 41 does not match the changed preset temperature range, the PID module 43 calculates the change amount according to the real-time temperature, reduces the power of the metal heating plate 1 according to the change amount, reduces the temperature, and transmits the change amount to the PLC module 42. At the same time, the cooling channel 21 also participates in the cooling process. In this embodiment, the adjustable joint 6 can also be set as an electromagnetic joint, which is connected to the PLC module 42 and the PID module 43 respectively to achieve automatic control.

[0052] Reference Figure 1 and Figure 2 A conductive member 7 is vertically arranged on the metal heating plate 1, which is connected to the PID module 43 through the conductive member 7. The conductive member 7 is electrically connected to the metal heating plate 1 and the PID module 43 respectively, and an avoidance hole 25 for the conductive member 7 to pass through is opened on the connecting block 2 to allow the conductive member 7 to extend out.

[0053] Reference Figure 3 In this embodiment, the conductive member 7 can be directly selected from wires, one end of which is welded to the metal heating plate 1, and the other end of which is electrically connected to the PID module 43. In another embodiment, the conductive member 7 can also be made detachable, such as a conductive plate, and the metal heating plate 1 is provided with a corresponding connection hole for the conductive plate to be inserted, and the power is supplied by inserting the conductive plate into the connection hole.

[0054] Furthermore, a sealing ring 8 is arranged around one side of the conductive part 7 connected to the metal heating plate 1, and the avoidance hole 25 is arranged in a step shape. The sealing ring 8 is sealed and connected to the wall of the avoidance hole 25 to provide better protection for the conductive part 7 and prevent the cooling medium from contacting the conductive part 7.

[0055] Reference Figure 5 and Figure 6 The temperature acquisition probe 41 also includes a guide sleeve 413 sleeved on the protective sleeve 412 and a mounting screw 414 that can be set on the connecting block 2. The protective sleeve 412 is surrounded by a flange 415. One end of the guide sleeve 413 is connected to the mounting screw 414, and the other end of the guide sleeve 413 abuts against the flange 415. When the temperature acquisition probe 41 is extended into the temperature measuring port 11, the mounting screw 414 is tightened so that the mounting screw 414 abuts against the top of the connecting block 2 to form a fastened connection, and the disassembly and assembly are convenient. In one embodiment, the guide sleeve 413 and the mounting screw 414 can be made of a ferrous metal with low thermal conductivity. In another embodiment, the guide sleeve 413 and the mounting screw 414 can also be made of non-metallic materials, such as plastic or ceramic.

[0056] Further, refer to Figure 1 The control component 4 also includes a display screen 44 for displaying the real-time temperature and the set temperature. The display screen 44 is electrically connected to the PLC module 42. The data received by the PID module 43 will pass through the PLC module 42 and finally be displayed on the display screen 44. In addition, when the adjustable joint 6 is electrically connected to the PID module 43, the display screen 44 can also display the flow rate of the cooling medium.

[0057] The implementation principle of the embodiment of the present application is as follows: the metal heating plate 1 generates heat when powered on, and the heating plate 3 transfers the heat generated by the metal heating plate 1 to the product to complete the packaging of the product. When the metal heating plate 1 is working, the temperature acquisition probe 41 can test the temperature of the metal heating plate 1 and transfer the real-time temperature to the PLC module 42. The PLC module 42 calculates the control quantity based on the preset set temperature and inputs the control quantity to the PID controller. After receiving the control quantity information, the PID controller controls the power of the metal heating plate 1 to achieve the purpose of heating and cooling the heating device, thereby ensuring production efficiency and product efficiency.

[0058] The embodiments of this specific implementation are all preferred embodiments of the present application, and are not intended to limit the protection scope of the present application. The same components are represented by the same figure marks. Therefore, any equivalent changes made based on the structure, shape, and principle of the present application should be included in the protection scope of the present application.

Claims

1. A new type of heating device for packaging machine, characterized in that: include: Metal heating plate (1); Connecting block (2): placed on the top side of the metal heating plate (1) and detachably connected to the metal heating plate (1); A control component (4): electrically connected to the metal heating plate (1) and used to control the temperature of the metal heating plate (1); The control component (4) comprises a temperature acquisition probe (41), a PID module (43), and a PLC module (42) with a preset set temperature, which are electrically connected in sequence; the temperature acquisition probe (41) is used to detect the real-time temperature of the metal heating plate (1); and the PID module (43) is electrically connected to the metal heating plate (1).

2. A novel packaging machine heating device according to claim 1, characterized in that: The control component (4) further comprises a display screen (44) for displaying real-time temperature and set temperature, and the display screen (44) is electrically connected to the PLC module (42).

3. A novel packaging machine heating device according to claim 1, characterized in that: The temperature collection probe (41) comprises a temperature sensing wire (411) and a protective sleeve (412) sleeved outside the temperature sensing wire (411); a temperature measuring port (11) is provided in the center of the metal heating plate (1); an input end of the temperature sensing wire (411) passes through the connection block (2) and is inserted into the temperature measuring port (11); and an output end of the temperature sensing wire (411) is electrically connected to the PID module (43).

4. A novel packaging machine heating device according to claim 2, characterized in that: It also includes a guide sleeve (413) sleeved on the protective sleeve (412) and a mounting screw (414) that can be set on the connecting block (2); a convex edge (415) is arranged around the protective sleeve (412); one end of the guide sleeve (413) is connected to the mounting screw (414), and the other end of the guide sleeve (413) is in contact with the convex edge (415).

5. A novel packaging machine heating device according to claim 1, characterized in that: It also comprises a heating plate (3), the heating plate (3) being detachably connected to the metal heating plate (1) and used for transferring heat, the two ends of the heating plate (3) being provided with heating heads (31) which extend in sequence and penetrate the metal heating plate (1) and the connecting block (2), and the surface of the heating plate (3) is coated with an anti-adhesion coating (5).

6. A novel packaging machine heating device according to claim 5, characterized in that: A heat transfer plate (9) is arranged between the metal heating sheet (1) and the heating plate (3), and the heat transfer plate (9) is made of any one of thermally conductive silicone grease, thermally conductive rubber sheet or thermally conductive ceramic.

7. A novel packaging machine heating device according to claim 1, characterized in that: A cooling channel (21) for cooling the metal heating plate (1) is provided on a side of the connection block (2) close to the metal heating plate (1), and a cooling medium can flow into the cooling channel (21).

8. A novel packaging machine heating device according to claim 7, characterized in that: An inlet (22) and an outlet (23) are respectively provided on both sides of the connection block (2); the inlet (22) and the outlet (23) are both in communication with the cooling channel (21) and are connected to an adjustable joint (6) for controlling the flow rate of the cooling medium.

9. A novel packaging machine heating device according to claim 7, characterized in that: A conductive member (7) is vertically arranged on the metal heating plate (1), the conductive member (7) being electrically connected to the metal heating plate (1) and the PID module (43) respectively, and an avoidance hole (25) for the conductive member (7) to pass through is provided on the connection block (2).

10. A novel packaging machine heating device according to claim 9, characterized in that: A sealing ring (8) is arranged around one side of the conductive member (7) connected to the metal heating plate (1); the avoidance hole (25) is arranged in a step-like shape; and the sealing ring (8) is sealedly connected to the wall surface of the avoidance hole (25).

Images