Rapid film coating mechanism for plastic bags

Abstract

The utility model relates to the field of plastic bag processing devices, and discloses a plastic bag rapid film coating mechanism which comprises a main frame, a heating water tank is mounted on the upper surface of the main frame, a water pump is mounted on the upper surface of the heating water tank, and a water pumping pipe is mounted at a water pumping opening of the water pump and extends to the bottom of the heating water tank. A water pump is installed on the main frame, a water outlet of the water pump is provided with a flow inlet pipe, one side of the heating water tank is provided with a backflow pipe, a heating cylinder is installed in the main frame, and the heating cylinder is sleeved with a preheating sleeve. Water in the heating cylinder is converged into the backflow pipe through the flow guide branch pipe on the other side and then enters the heating water tank, continuous circulation of hot water in the heating cylinder is achieved, uniform constant-temperature heating of the preheating sleeve is achieved, and therefore the bonding face of a plastic bag film passing through the lower portion of the preheating sleeve can be preheated, and the adhesion of an adhesive obtained after the surface of the film coating roller is coated with a film is improved.

Description

TECHNICAL FIELD

[0001] The application relates to the technical field of plastic bag processing devices, in particular to a plastic bag rapid film coating mechanism. BACKGROUND

[0002] The compound machine is used for bonding two or more materials together through an adhesive and pressing equipment to make the materials close to each other. Commonly, the compound machine is used for producing films, aluminum foils, films and paper. When the plastic bags are produced, a bidirectional film coating compound machine is used. In actual use, the two symmetrical film coating rollers are arranged to perform the glue coating operation on the upper and lower surfaces of the plastic bag film, so that the plastic bag film can be better bonded with the compound film, and the production efficiency of the plastic bag is improved.

[0003] In actual use, when the ambient temperature is low, the adhesion of the film coating agent on the surface of the film coating roller is reduced, and the edges of the plastic bag are prone to be warped after film coating, thereby affecting the film coating effect.

[0004] Therefore, the technical personnel in the art provide a plastic bag rapid film coating mechanism to solve the problems in the background art. CONTENT OF THE INVENTION

[0005] In order to solve the problems in the background art, the application provides a plastic bag rapid film coating mechanism.

[0006] The plastic bag rapid film coating mechanism provided by the application adopts the following technical scheme:

[0007] A plastic bag rapid film coating mechanism, comprising a main frame, a heating water tank is installed on the upper surface of the main frame, a water pump is installed on the upper surface of the heating water tank, a water suction pipe is installed on the water pump water suction port, and the water suction pipe extends to the bottom of the heating water tank, an inlet pipe is installed on the water pump water outlet, a reflux pipe is installed on one side of the heating water tank, a heating cylinder is installed in the main frame, a preheating sleeve is sleeved outside the heating cylinder, flow guide branch pipes are installed at both ends of the heating cylinder, and the two flow guide branch pipes are respectively communicated with the inside of the inlet pipe and the reflux pipe.

[0008] Preferably, a plurality of support rods are arranged on the inner walls of the main frame, bearing sleeves are installed between the end portions of the support rods on the same side, and the inner ring of the bearing sleeve is fixed to the outside of the preheating sleeve.

[0009] Preferably, the heating cylinder, the preheating sleeve and the flow guide branch pipe are all hollow members made of stainless steel.

[0010] Preferably, a water inlet is arranged on the upper surface of the heating water tank on the side of the water pump.

[0011] Preferably, two groups of conveying rollers are symmetrically arranged on both sides of the inner wall of the main frame, and each group of conveying rollers comprises two conveying rollers, and the two groups of conveying rollers are arranged at positions higher than the preheating sleeve.

[0012] In summary, the present application has the following beneficial technical effects:

[0013] The water pump draws the hot water in the heating water tank into the inflow pipe, and the hot water in the heating cylinder is collected into the return pipe through the other side of the flow guide branch pipe, and then enters the heating water tank, so that the hot water in the heating cylinder is continuously circulated, the preheating sleeve is uniformly and constantly heated, and the plastic bag film bonding surface under the preheating sleeve is preheated, the adhesion of the adhesive on the surface of the film coating roller after film coating is increased, the film coating after film coating is effectively avoided, and the film coating effect is improved. BRIEF DESCRIPTION OF DRAWINGS

[0014] Figure 1 is a structural schematic view of the main frame body of the present application;

[0015] Figure 2 is a structural schematic view of the main frame body of the present application;

[0016] Figure 3 is a structural schematic view of the main frame body of the present application; Figure 2 A is a structural schematic view of the main frame body of the present application.

[0017] The drawings are described as follows: 1, main frame; 2, conveying roller; 3, inflow pipe; 4, water pump; 5, heating water tank; 6, return pipe; 7, preheating sleeve; 8, water pump; 9, support rod; 10, bearing sleeve; 11, heating cylinder; 12, flow guide branch pipe. DETAILED DESCRIPTION

[0018] The technical scheme in the embodiments of the present application will be described clearly and completely below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the present application.

[0019] Reference Figures 1-3As shown, the application discloses a kind of quick plastic bag coating mechanism, heating water tank 5 is installed on the upper surface of main frame 1, the main principle is realized by heating rod or heating pipe to heat water after power on, water pump 4 is installed on the upper surface of heating water tank 5, water pump 4 suction pipe is equipped with suction pipe 8, and suction pipe 8 extends to the bottom of heating water tank 5, water pump 4 outlet is equipped with inflow pipe 3, one side of heating water tank 5 is equipped with return pipe 6, heating cylinder 11 is installed in main frame 1, preheating sleeve 7 is sleeved outside heating cylinder 11, and guide branch pipe 12 is installed at both ends of heating cylinder 11, and two guide branch pipes 12 are communicated with inflow pipe 3 and return pipe 6 inside respectively, by starting water pump 4, hot water in heating water tank 5 is pumped to inflow pipe 3 inside by suction pipe 8, then it is injected into heating cylinder 11 inside by one side guide branch pipe 12, then water in heating cylinder 11 is poured into return pipe 6 inside by the other side guide branch pipe 12, and finally re-enters heating water tank 5, realizes the continuous circulation of hot water in heating cylinder 11, realizes the uniform constant temperature heating of preheating sleeve 7, so that the plastic bag film bonding surface under preheating sleeve 7 can be preheated, and the adhesion of adhesive on the surface of coating roller after coating is increased.

[0020] Reference Figure 2 And Figure 3 As shown, a plurality of support rods 9 are arranged on the two sides of the inner wall of the main frame 1, and a bearing sleeve 10 is arranged between the ends of the plurality of support rods 9 on the same side, and the inner ring of the bearing sleeve 10 is fixed to the outside of the preheating sleeve 7, so that the plastic bag film can be stably rotated outside the heating cylinder 11 during conveying.

[0021] Reference Figure 2 And Figure 3 As shown, the heating cylinder 11, the preheating sleeve 7 and the guide branch pipe 12 are all hollow members made of stainless steel, which ensures the supportability of the guide branch pipe 12, the heating cylinder 11 and the preheating sleeve 7 installed in the main frame 1, and facilitates the continuous transfer of heat in the heating cylinder 11 to the preheating sleeve 7.

[0022] Reference Figure 2 As shown, a water inlet is arranged on the upper surface of the heating water tank 5 on one side of the water pump 4, which facilitates timely supplement of the water consumed in the heating water tank 5.

[0023] Reference Figure 1 And Figure 2 As shown, two groups of conveying rollers 2 are symmetrically arranged on the two sides of the inner wall of the main frame 1, and each group of conveying rollers 2 comprises two conveying rollers 2, and the two groups of conveying rollers 2 are arranged at a position higher than the preheating sleeve 7, so that the plastic bag film passes between the two conveying rollers 2 of one group, and then is attached to the lower side of the preheating sleeve 7, and then passes between the two conveying rollers 2 of the other group, so as to keep the plastic bag film taut during conveying, and facilitate normal conveying of the plastic bag film.

[0024] The standard parts used in the utility model can be purchased from the market, the special-shaped parts can be ordered according to the description and the drawings, the specific connection mode of each part adopts the conventional means such as bolts, rivets and welding in the prior art, the machinery, parts and equipment adopt conventional models in the prior art, and the circuit connection adopts the conventional connection mode in the prior art, and details are not described herein.

[0025] Meanwhile, the contents not described in detail in the specification all belong to the prior art known by the person skilled in the art.

[0026] The implementation principle of the plastic bag rapid film coating mechanism is:

[0027] In use, the plastic bag film passes between a set of two conveying rollers 2, then is attached below the preheating sleeve 7, and then passes between another set of two conveying rollers 2, while the water pump 4 is started, the hot water in the heating water tank 5 is pumped into the inflow pipe 3 through the water suction pipe 8, then is injected into the heating cylinder 11 through the one-side flow guide branch pipe 12, then the water in the heating cylinder 11 is collected into the backflow pipe 6 through the other-side flow guide branch pipe 12, and finally is re-entered into the heating water tank 5, so that the hot water in the heating cylinder 11 is continuously circulated, the preheating sleeve 7 is uniformly and constantly heated, and thus the plastic bag film bonding surface passing below the preheating sleeve 7 can be preheated, the effect after coating is improved, and the edge lifting phenomenon after coating is avoided.

[0028] The basic principle, main features and advantages of the utility model are shown and described above. It should be understood by the person skilled in the art that the utility model is not limited by the above embodiments, the above embodiments and the description in the specification are only preferred examples of the utility model, and are not used to limit the utility model, various changes and improvements of the utility model can be made without departing from the spirit and scope of the utility model, and these changes and improvements all fall within the scope of the utility model claimed. The protection scope of the utility model is defined by the appended claims and equivalents thereof.

Claims

1. A mechanism for rapid coating of plastic bags, comprising a main frame (1), characterized in that, The main frame (1) upper surface is mounted with a heating water tank (5), the heating water tank (5) upper surface is mounted with a water pump (4), the water pump (4) water suction port is mounted with a water suction pipe (8), and the water suction pipe (8) extends to the heating water tank (5) bottom, the water pump (4) water outlet is mounted with an inflow pipe (3), one side of the heating water tank (5) is mounted with a backflow pipe (6), the main frame (1) inside is mounted with a heating cylinder (11), the heating cylinder (11) outside is sleeved with a preheating sleeve (7), both ends of the heating cylinder (11) outside are mounted with flow guide branch pipes (12), and two flow guide branch pipes (12) are respectively communicated with the inflow pipe (3) and the backflow pipe (6) inside.

2. The mechanism for rapid coating of plastic bags according to claim 1, characterized in that: The main frame (1) inner wall both sides are provided with a plurality of support rods (9), the same side plurality of support rods (9) end portions are mounted with bearing sleeves (10), and the bearing sleeves (10) inner rings are fixed with the preheating sleeve (7) outside.

3. The mechanism for rapid coating of plastic bags according to claim 1, characterized in that: The heating cylinder (11) and the preheating sleeve (7) and the flow guide branch pipe (12) are all hollow members of stainless steel.

4. The mechanism for rapid coating of plastic bags according to claim 1, characterized in that: The heating water tank (5) upper surface is provided with a water inlet on one side of the water pump (4).

5. The mechanism for rapid coating of plastic bags according to claim 1, characterized in that: The main frame (1) inner wall both sides are symmetrically provided with two groups of conveying rollers (2), and one group of conveying rollers (2) is provided with two, and the two groups of conveying rollers (2) distribution positions are all higher than the preheating sleeve (7).

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