Safety anti-scalding device of stretch film packaging machine

Abstract

The utility model provides a stretch film packaging machine safety anti-scalding device which comprises a heating box, the heating box is installed above a production line through fixing plates on the two sides, and a first splitter plate, a heating pipe and a second splitter plate are sequentially arranged in the heating box from top to bottom. The two sides of the interior of the heating box are each provided with a backflow groove, and a collecting groove used for being connected with the backflow grooves in the two sides is formed in the upper portion of the heating box; a draught fan is installed above the heating box, an air suction opening of the draught fan is connected into the collecting groove through a pipeline, an air blowing opening of the draught fan is connected with an air bellow on one side, the lower end of the air bellow is provided with an opening, and the air bellow can be communicated with the interior of the heating box through a collecting opening formed in the heating box. Through the arrangement of the heat insulation cavity, the backflow groove and the collection groove, the situation that the surface temperature of the heating box is too high, and workers are scalded in the working process can be well prevented.

Description

TECHNICAL FIELD

[0001] The utility model belongs to packaging equipment technical field especially, relate to a kind of safety anti-scald device of stretch film packaging machine. BACKGROUND

[0002] ‌Stretch film packaging machine‌It is a kind of packaging equipment with higher automation, it adopts stretch film to heat through equipment, forms the shape of container by the working principle of upper blowing and lower suction after forming die. Workers place material in material filling area, cover film in film covering area, vacuum sealing, cut into single product packaging machinery by horizontal cutting and vertical cutting;Widely used, suitable for vacuum (inflation) packaging of various raw and cooked products, marine products, medicinal materials, fruits, hardware components and other products, to extend product shelf life and fresh-keeping period.‌

[0003] Stretch film vacuum packaging machine needs to use heating device to heat the film to the set temperature to make the film soft when using, to prepare for the next forming process, and the heat generated by the heating device in the existing stretch film packaging machine is transferred to the surface of the heating device, which can easily scald the workers during use. UTILITY MODEL CONTENT

[0004] To solve the above technical problems, the utility model provides a kind of safety anti-scald device of stretch film packaging machine, the technical scheme as follows is used:

[0005] A kind of safety anti-scald device of stretch film packaging machine, including heating box, the heating box is installed above production line by both sides fixed plate, first shunt plate, heating pipe and second shunt plate are sequentially arranged from top to bottom in the inside of heating box;

[0006] One reflux groove is respectively arranged in the both sides in the inside of heating box, one collection groove for connecting the reflux groove of both sides is opened in the position above heating box;Fan is installed above heating box, the suction port of the fan is connected into collection groove by pipeline, the blowing port of the fan is connected with the air bellow of one side, the lower end of the air bellow is open, and the inside of heating box is communicated with the inside of heating box by the collection port opened in the inside of heating box.

[0007] Further, the air bellow is provided with arc chamfer inside, to facilitate the flow of airflow towards the collection port in the heating box.

[0008] Further, one heat insulation cavity is respectively arranged in the inside of heating box and located at the outside of reflux groove, the heat insulation cavity is filled with heat insulation material, such as asbestos, rock wool or glass fiber, to further isolate the transmission of heat.

[0009] Furthermore, a temperature sensor inserted into the heating box is provided in one side fixing plate to detect the temperature of the air flow flowing down from above the second diverter plate. When the air flow temperature is detected to be too high, the heating tube can be repaired and adjusted in time.

[0010] Compared with the prior art, the present invention has the following beneficial effects:

[0011] Under the action of the fan, the utility model forms a negative pressure in the reflow trough and the collecting trough, and the escaping air flow is extracted and enters the fan for circulation again; the heat carried in the escaping air flow will not be wasted and can be recycled again, and the escaping air flow can also be prevented from scalding the staff; in addition to extracting the hot gas discharged from the heating box, the outside gas can also be extracted as a supplement, so the temperature of the gas flowing through the reflow trough and the collecting trough will not be too high, which can reduce the transfer of heat generated by the heating tube to the outer surface of the heating box.

[0012] The utility model provides a heat-insulating cavity in the heating box and on the outside of the reflow trough, respectively. The heat-insulating cavity is filled with heat-insulating materials such as asbestos, rock wool or glass fiber. Together with the reflow trough and the collecting trough, it can better prevent the surface temperature of the heating box from being too high, thereby preventing workers from being scalded during operation. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0014] Figure 2 This is a schematic diagram of the position structure of the diverter plate and the heating tube of the utility model;

[0015] Figure 3 This is a structural diagram of the collecting tank of the utility model;

[0016] Figure 4 This is a schematic diagram of the internal structure of the heating box of the utility model;

[0017] Figure 5 This utility model Figure 4 A magnified schematic diagram of the structure in the middle.

[0018] Figure 6 It is a schematic diagram of the internal structure of the bellows of the utility model.

[0019] In the picture:

[0020] 1-production line, 2-fixed plate, 21-temperature sensor, 3-heating box, 31-reflux tank, 32-collecting tank, 33-entry port, 34-insulation chamber, 4-fan, 5-bellows, 6-first manifold plate, 7-heating tube, 8-second manifold plate. DETAILED DESCRIPTION

[0021] In order to help those skilled in the art better understand the present invention, the following will clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative work should fall within the scope of protection of the present invention.

[0022] As attached Figure 1-6 shown.

[0023] A safety and anti-scalding device for a stretch film packaging machine includes a heating box 3, which is installed above a production line 1 through fixed plates 2 on both sides. A first diverter plate 6, a heating tube 7, and a second diverter plate 8 are provided in the interior of the heating box 3 from top to bottom. A temperature sensor 21 inserted into the interior of the heating box 3 is provided in the fixed plate 2 on one side.

[0024] A reflux groove 31 is provided on both sides of the interior of the heating box 3, and a collecting groove 32 for connecting the reflux grooves 31 on both sides is opened above the heating box 3; a fan 4 is installed above the heating box 3, and the air suction port of the fan 4 is connected to the collecting groove 32 through a pipe, and the air blowing port of the fan 4 is connected to the wind box 5 on one side. The lower end of the wind box 5 is opened, and it can be connected to the interior of the heating box 3 through the collecting port 33 opened inside the heating box 3.

[0025] Through the above-mentioned structural arrangement, when the fan 4 is started, the air flow will be transported toward the air box 5, and the air flow will enter the interior of the heating box 3 through the confluence port 33. After entering the interior, the air flow will be dispersed by the first diverter plate 6. After the dispersed air flow is heated by the heating tube 7, it will be dispersed again by the second diverter plate 8, so that it can heat the film passing over the production line 1; at the same time, the second diverter plate 8 can also slow down the flow rate of the air flow, so that it can extend the heating time of the heating tube 7 and ensure the heating effect on the film.

[0026] The airflow blowing toward the film will escape from both sides of the heating box 3. Through the arrangement of the reflow grooves 31 on both sides, under the action of the fan 4, a negative pressure will be formed in the reflow grooves 31 and the collecting grooves 32, and the escaping airflow will be extracted and enter the fan 4 for circulation again. In this way, the heat carried by the escaping airflow will not be wasted and can be recycled again. At the same time, it can also prevent the escaping airflow from scalding the staff.

[0027] During this process, the temperature sensor 21 can detect the temperature of the air flow flowing down from above the second diverter plate 8. When it is detected that the air flow temperature is too high, the heating tube 7 can be repaired and adjusted in time.

[0028] During use, the gas in the reflux groove 31 and the collecting groove 32 is always in a flowing state, and at the lower end of the reflux groove 31, in addition to extracting the hot gas discharged from the heating box 3, the outside gas can also be extracted as a supplement. Therefore, the temperature of the gas flowing through the reflux groove 31 and the collecting groove 32 will not be too high, which can reduce the transfer of heat generated by the heating tube 6 to the outer surface of the heating box 3.

[0029] Utilizing the technical solution described in the utility model, or those skilled in the art designing similar technical solutions inspired by the technical solution of the utility model to achieve the above-mentioned technical effects, all fall within the scope of protection of the utility model.

Claims

1. A safety anti-scalding device for a stretch film packaging machine, comprising a heating box (3), characterized in that: The heating box (3) is installed above the production line (1) via fixed plates (2) on both sides, and a first diverter plate (6), a heating tube (7) and a second diverter plate (8) are sequentially provided inside the heating box (3) from top to bottom; A reflow groove (31) is provided on both sides of the interior of the heating box (3), and a collecting groove (32) for connecting the reflow grooves (31) on both sides is provided above the heating box (3); a fan (4) is installed above the heating box (3), the air suction port of the fan (4) is connected to the collecting groove (32) through a pipeline, and the air blowing port of the fan (4) is connected to the wind box (5) on one side, and the lower end of the wind box (5) is open and can be connected to the interior of the heating box (3) through the collecting port (33) provided inside the heating box (3).

2. The safety anti-scalding device for a stretch film packaging machine according to claim 1, characterized in that: The bellows (5) is provided with an arc-shaped chamfer inside.

3. The safety anti-scalding device for a stretch film packaging machine according to claim 1, characterized in that: A heat insulation cavity (34) is provided in the heating box (3) and outside the reflow groove (31), and the heat insulation cavity (34) is filled with heat insulation material.

4. The safety anti-scalding device for a stretch film packaging machine according to claim 1, characterized in that: A temperature sensor (21) is provided in one side fixing plate (2) and is inserted into the interior of the heating box (3).

Images