Heating device for laminator

Abstract

The utility model discloses a heating device for a laminator, which comprises a rubber roller and two roller seats arranged at two ends of the rubber roller, a heating device is arranged in the rubber roller, the heating device further comprises a temperature control mechanism, and the temperature control mechanism comprises a heating sheet connected with the heating device in series and a temperature control switch for controlling the working state of the heating sheet. According to the heating device for the laminator, the heating efficiency can be improved, the energy consumption can be reduced, the temperature can be controlled, and potential safety hazards are reduced.

Description

Technical Field

[0001] The utility model relates to a heating device, in particular to a heating device for a laminating machine. Background Art

[0002] Gluing refers to the process of encapsulating the items to be packaged in a plastic film through the processing of a gluing machine. At present, the heating device for the gluing machine generally includes two pairs of gluing rollers and a built-in heating tube. After power is turned on, the built-in heating tube generates heat and heats the gluing roller. When the surface temperature of the gluing roller reaches the set temperature, the hot melt adhesive layer on the gluing film passing through the two gluing rollers can be melted. Under the extrusion of the two gluing rollers, the gluing film and the items to be packaged are bonded together to complete the gluing. The current heating device for the gluing machine has low heating efficiency, cannot control the temperature well, and is not very safe.

[0003] For example, the utility model patent with the authorization announcement number CN 205131784 U discloses an improved structure of a heating device for a laminating machine, including a left bracket and a right bracket, a heating tube is arranged between the left and right brackets, a heat mounting shaft is arranged under the heating tube, and a paper guide is arranged under the heat mounting shaft; a gear is arranged on the right side of the right bracket, a negative spring is arranged on the right side of the gear, a positive spring is arranged on the right side of the negative spring, a positive spring is arranged inside the gear, a positive spring is arranged on the right side of the positive spring, and the positive spring and the negative spring are connected to the wire. Although the heating device for the laminating machine has uniform heat transfer, it cannot control the temperature and has potential safety hazards. Utility Model Content

[0004] In order to solve the above problems, the utility model provides a heating device for a laminating machine, which can improve heating efficiency, reduce energy consumption, control temperature and reduce safety hazards.

[0005] The technical solution of the utility model to solve the above problems is as follows:

[0006] A heating device for a laminating machine comprises a rubber roller, two roller seats arranged at both ends of the rubber roller, a heating device is arranged inside the rubber roller, and also comprises a temperature control mechanism, the temperature control mechanism comprises a heating plate connected in series with the heating device and a temperature control switch for controlling the working state of the heating plate.

[0007] Preferably, the temperature control mechanism further includes a fuse connected in series with the heating device.

[0008] Preferably, there are two rubber rollers, and both roller seats are provided with strip holes, wherein one rubber roller is adjustably arranged on the roller seat through the strip holes, and the other rubber roller is fixedly arranged on the roller seat.

[0009] Preferably, at least one of the two roller seats is equipped with a wire spring that abuts against the position-adjustable rubber roller and resets it.

[0010] Preferably, one of the two roller seats is equipped with a driving mechanism, and the driving mechanism includes a driving gear arranged on one of the rubber rollers, a driven gear arranged on the other rubber roller, and a motor for driving the driving gear.

[0011] Preferably, the driving mechanism further comprises a reverse gear engaged with the driving gear and a reverse shift block for controlling the movement of the reverse gear.

[0012] Preferably, the driving mechanism further comprises a spring which abuts against the reverse gear and resets the reverse gear.

[0013] Preferably, the temperature control mechanism is installed in one of the two roller seats.

[0014] Preferably, the two roller seats are both equipped with fixing parts for fixing the heating device.

[0015] Preferably, a glue guide plate for guiding the glued object is arranged between the two roller seats.

[0016] The utility model has the following beneficial effects:

[0017] (1) The heating device for the laminating machine of the utility model sets the heating device in the rubber roller to directly heat the rubber roller, thereby eliminating the heat energy loss of the heat transfer component, shortening the heating time and improving the heating efficiency;

[0018] (2) The heating device for the laminating machine of the utility model is provided with a temperature control mechanism. The heating sheet in the temperature control mechanism is connected in series with the heating device. When the power is turned on for heating, the temperatures of the two are positively correlated. By monitoring the temperature of the heating sheet, the temperature of the heating device can be monitored, which is convenient for controlling the temperature of the heating device. Therefore, the temperature control mechanism does not need to cover the entire heating device, but only needs to be set in the roller seat, which is small in size and easy to install.

[0019] (3) The heating device of the laminating machine of the utility model is equipped with a fuse, which will blow when the temperature is too high, thus eliminating the potential safety hazard. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a schematic diagram of the structure of the utility model;

[0021] Figure 2 This is a schematic diagram of the temperature control mechanism structure of the utility model;

[0022] Figure 3 This is a schematic diagram of the driving mechanism structure of the utility model.

[0023] In the figure: 1-rubber roller, 11-first rubber roller, 12-second rubber roller, 2-heating device, 3-rubber guide plate, 4-roller seat, 41-first roller seat, 42-second roller seat, 5-fixing part, 6-wire spring, 7-silicone sleeve, 8-temperature control mechanism, 81-heating plate, 82-heat conducting member, 83-temperature control switch, 84-fuse, 85-silicone tube, 9-driving mechanism, 91-motor, 92-driving gear, 93-driven gear, 94-reverse gear, 95-reverse shift block, 96-spring, 97-gasket, 10-Teflon tube. DETAILED DESCRIPTION

[0024] The following will be combined with the embodiments of the utility model and the accompanying drawings to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0025] A heating device for laminating, such as Figure 1 As shown, it includes a rubber roller 1 and a roller seat 4.

[0026] The rubber roller 1 comprises a first rubber roller 11 and a second rubber roller 12, which are arranged parallel to each other.

[0027] The roller seat 4 includes a first roller seat 41 and a second roller seat 42. They are respectively arranged at both ends of the first rubber roller 11 and the second rubber roller 12 to provide installation positions for the rubber roller 1. The installation position of the first roller seat 41 is called the first installation position, and the installation position of the second roller seat 42 is called the second installation position.

[0028] In this embodiment, the first installation position is designed as a strip hole to facilitate the position adjustment of the first rubber roller 11, and the second installation position is designed as a round hole to fix the second rubber roller 12 so that it does not move. In this way, when the first rubber roller 11 is adjusted, the gap between the two rollers can be adjusted. The gap between the two rollers is the conveying channel for the processed object and also the processing channel.

[0029] The processing principle is:

[0030] In static state: the first rubber roller 11 and the second rubber roller 12 arranged in pairs are used to perform line contact extrusion on the processing object;

[0031] Dynamically: through the rotation of the two rubber rollers 1 in relative directions, the processed object is subjected to line contact extrusion and a continuously growing extrusion surface is formed.

[0032] When the thickness of the processed object is relatively large, the gap between the two rollers is enlarged by adjusting the position of the first rubber roller 11; when the thickness of the processed object is relatively small, the gap between the two rollers is reduced by adjusting the position of the first rubber roller 11.

[0033] A wire spring 6 is arranged in the first roller seat 41, and a Teflon tube 10 is arranged in the second roller seat 42. The wire spring 6 and the Teflon tube 10 are both in contact with the first rubber roller 11, and thrust is applied to the first rubber roller 11 to ensure that the first rubber roller 11 and the second rubber roller 12 can perform line contact extrusion on the processing object in a static state. In addition, because the friction coefficient of the Teflon tube 10 is small, it can play a role in lubricating the first rubber roller 11, thereby reducing the sound when the first rubber roller 11 and the second rubber roller 12 are in contact.

[0034] A glue guide plate 3 is disposed between the first roller seat 41 and the second roller seat 42 . The glue guide plate 3 is connected to the conveying channel to guide the processed object into the conveying channel to complete the glue processing.

[0035] The first rubber roller 11 and the second rubber roller 12 are both hollow structures. A heating device 2 is inserted into the rubber roller 1, and the two ends of the heating device 2 extend outward from the two ends of the rubber roller 1. The roller seat 4 has a through hole for the heating device 2 to pass through, and a fixing member 5 is installed on the roller seat 4. The two ends of the heating device 2 pass through the through holes on the roller seat 4 and are clamped with the fixing member 5. The fixing member 5 can fix the position of the heating device 2 without displacement. A high-temperature resistant silicone sleeve 7 is provided at the clamping position of the fixing member 5 and the heating device 2. The silicone sleeve 7 can separate the fixing member 5 from the heating device 2 to prevent the high-temperature heating device 2 from damaging the fixing member 5.

[0036] In order to prevent the heating element 2 from overheating and causing potential safety hazards, a temperature control mechanism 8 is installed in the first roller seat 41. Figure 2 As shown, the temperature control mechanism 8 includes a heat conducting member 82, a heating sheet 81 is embedded in the middle of the heat conducting member 82, and a temperature control switch 83 is also installed on the heat conducting member 82. The heating sheet 81 is connected in series with the heating device 2 through a wire, and the temperatures of the two are positively correlated when powered on for heating. The heat conducting member 82 is made of a material with good thermal conductivity, so the temperature control switch 83 can detect the temperature of the heating sheet 81 in the heat conducting member 82, and then detect and control the temperature of the heating device 2 connected in series with the heating sheet 81.

[0037] In order to further improve the safety of the device, a fuse 84 is also installed on the heat conducting member 82. The fuse 84 is connected in series with the heating device 2 through a wire. When the temperature of the heating device 2 is too high, the fuse 84 melts, the circuit is disconnected, and the heating device stops working. In this embodiment, the fuse 84 is a temperature fuse. A high temperature resistant silicone tube 85 is provided between the fuse 84 and the heat conducting member 82 to fix and protect the fuse 84.

[0038] A driving mechanism 9 is installed in the second roller seat 42. Figure 3 As shown, it is used to drive the rubber roller 1 to rotate. The driving mechanism 9 includes a motor 91, a driving gear 92 is installed on the output shaft of the motor 91, and driven gears 93 are arranged on the two rubber rollers 1. The driving gear 92 meshes with the two driven gears 93 and drives the driven gears 93 to rotate, thereby driving the rubber roller 1 to rotate.

[0039] A spring 96 and a retracting gear 94 are also provided on the output shaft of the motor 91, and the retracting gear 94 is engaged with the driving gear 92. To facilitate the control of the retracting gear 94, a retracting block 95 is engaged with the retracting gear 94, and the other end of the retracting block 95 is mounted on the second roller seat 42. In normal use, the retracting gear 94 and the driving gear 92 rotate together under the drive of the motor 91; when the processing effect is not ideal, the retracting gear 94 can be separated from the driving gear 92 by shifting the retracting block 95, the driving gear 92 stops rotating, and the rubber roller 1 stops rotating accordingly, and the processing object can be retrieved from the processing channel at this time. Afterwards, the retracting gear 94 is reengaged with the driving gear 92 under the action of the thrust of the spring 96, and the driving gear 92 and the rubber roller 1 resume operation. In order to prevent the spring 96 from wearing the motor 91, a gasket 97 is provided between the spring 96 and the motor 91 to prevent the spring 96 from directly contacting the motor 91.

[0040] In another embodiment of the present invention, the driving gear 92 can be directly disposed on the first rubber roller 11 and meshed with the driven gear 93 disposed on the second rubber roller 12 to drive the rubber roller 12 to rotate.

[0041] In another embodiment of the present invention, the driving gear 92 can be directly disposed on the second rubber roller 12 and meshed with the driven gear 93 disposed on the first rubber roller 11 to drive the rubber roller 11 to rotate.

[0042] The principle of the utility model is as follows:

[0043] When the utility model is in use, the heating device 2 heats the rubber roller 1 after generating heat, and the motor 91 drives the driving gear 92 to drive the rubber roller 1 to rotate, thereby completing the gluing process of the processing object. During the gluing process, if the gluing effect is not ideal, the retraction block 95 can be toggled to separate the retraction gear 94 from the driving gear 92, the rubber roller 1 stops rotating, and the processing object is retrieved. When the retraction block 95 returns to its original position, the retraction gear 94 re-engages with the driving gear 92 under the thrust of the spring 96, and the rubber roller 1 resumes rotating. The temperature control switch 83 can monitor and control the temperature of the heating device 2 so that the temperature rises stably to the set value. When the temperature is too high and the temperature control switch 83 fails, the fuse 84 melts, the circuit is disconnected, and the heating device stops working.

Claims

1. A heating device for a laminating machine, comprising a rubber roller (1), and two roller seats (4) arranged at both ends of the rubber roller (1), characterized in that: The rubber roller (1) is provided with a heating device (2) inside, and also includes a temperature control mechanism (8), wherein the temperature control mechanism (8) includes a heating plate (81) connected in series with the heating device (2) and a temperature control switch (83) for controlling the working state of the heating plate (81).

2. A heating device for a laminating machine according to claim 1, characterized in that: The temperature control mechanism (8) also includes a fuse (84) connected in series with the heating device (2).

3. A heating device for a laminating machine according to claim 1, characterized in that: The rubber rollers (1) are provided with two, and the two roller seats (4) are both provided with strip holes, wherein one of the rubber rollers (1) is adjustably arranged on the roller seat (4) through the strip holes, and the other rubber roller (1) is fixedly arranged on the roller seat (4).

4. A heating device for a laminating machine according to claim 1, characterized in that: At least one of the two roller seats (4) is provided with a wire spring (6) which abuts against the position-adjustable rubber roller (1) and resets it.

5. A heating device for a laminating machine according to claim 3, characterized in that: One of the two roller seats (4) is equipped with a driving mechanism (9), the driving mechanism (9) comprising a driving gear (92) arranged on one of the rubber rollers (1), a driven gear (93) arranged on the other rubber roller (1), and a motor (91) for driving the driving gear (92).

6. A heating device for a laminating machine according to claim 5, characterized in that: The driving mechanism (9) further comprises a retraction gear (94) engaged with the driving gear (92) and a retraction shifting block (95) for controlling the movement of the retraction gear (94).

7. A heating device for a laminating machine according to claim 6, characterized in that: The driving mechanism (9) further comprises a spring (96) which abuts against the reversing gear (94) and resets the reversing gear (94).

8. The heating device for a laminating machine according to claim 1, characterized in that: The temperature control mechanism (8) is installed in one of the two roller seats (4).

9. A heating device for a laminating machine according to claim 1, characterized in that: The two roller seats (4) are both equipped with fixing parts (5) for fixing the heating device (2).

10. A heating device for a laminating machine according to claim 1, characterized in that: A glue guide plate (3) for guiding the glued object is arranged between the two roller seats (4).

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