Filter screen for hot melt adhesive particle production device

Abstract

The utility model belongs to the technical field of filter screens, and relates to a filter screen for a hot melt colloidal particle production device, which comprises a mounting frame, a communicating pipe and a filter plate, a sliding rod is fixedly mounted on one side of the mounting frame, a driving lead screw is rotatably mounted on the other side of the mounting frame, a driving motor is embedded in the mounting frame, and the output end of the driving motor is fixedly connected with the driving lead screw; an electric heater is fixedly embedded in the top of the mounting frame, a plurality of high-pressure nozzles are arranged on the left end wall and the right end wall in the mounting frame, a water injection pipe is fixedly arranged at the front end of the mounting frame, branch pipes of the water injection pipe fixedly communicate with the high-pressure nozzles, one bidirectional spring sleeve is slidably mounted on the sliding rod, and the other bidirectional spring sleeve is mounted on the driving lead screw in a threaded mode. Connecting rods are movably inserted between the two ends of the two bidirectional spring sleeves, and the balls are slidably mounted on the two connecting rods; the filter screen is used for a hot melt adhesive particle production device, can filter hot melt adhesive, has a self-cleaning function, and does not need to be disassembled and replaced in a short time.

Description

Technical Field

[0001] The utility model belongs to the technical field of filter screens, and particularly relates to a filter screen used in a hot melt rubber particle production device. Background Art

[0002] Hot melt adhesive is a thermoplastic adhesive that is solid at room temperature but liquefies at higher temperatures. The melting temperature of hot melt adhesive is generally between 65℃ and 180℃. After heating, it can flow and have a certain viscosity, which can wet the surface of the substrate, and harden to form a strong bond after cooling. It has a wide range of uses, including home decoration, handicrafts, packaging, shoe and hat making, and furniture. In order to filter out impurities in the molten adhesive, a special filter mechanism is generally set on the hot melt adhesive pellet production equipment in the channel where the molten adhesive flows to ensure the quality of the produced hot melt adhesive pellets.

[0003] For example, the Chinese utility model patent with the announcement number CN203610295U discloses a constant temperature filter device for producing hot melt adhesive particles, which includes an adhesive input end, an adhesive output end, a left mounting block, a right mounting block, a filter mechanism and a cylinder. The filter mechanism is clamped between the left mounting block and the right mounting block. The filter mechanism is composed of a filter frame and two filter workpieces. The two filter workpieces are installed side by side in the filter frame, and the two filter workpieces can be moved back and forth along the length direction of the filter frame. The cylinder is installed on the end face of the filter frame, and the cylinder rod of the cylinder passes through the filter frame and is connected to one of the filter workpieces, and the two filter workpieces are fixedly connected to each other to realize the cylinder driving the two filter workpieces to alternately switch back and forth, and the left mounting block and the right mounting block are also coated with electric heating elements. The alternate switching of the two filter workpieces driven by one cylinder is convenient and fast, and there is no need to stop the machine for switching, which will not affect the working efficiency of the entire hot melt adhesive production equipment.

[0004] The above utility model can only be replaced when the filter screen is clogged, and does not have a self-cleaning function. Since the hot melt adhesive has a high viscosity, it often needs to be replaced regularly, which affects the production efficiency of the hot melt adhesive. Utility Model Content

[0005] In order to solve the technical problem that the filter screen of the above utility model can only be replaced when it is blocked, and does not have the function of self-cleaning, and the hot melt adhesive has a high viscosity and therefore often needs to be replaced regularly, which affects the production efficiency of the hot melt adhesive, the utility model provides the following technical solutions:

[0006] The utility model relates to a filter screen for a hot melt adhesive particle production device, comprising a mounting frame, a connecting pipe and a filter plate, a sliding rod fixedly mounted on one side of the mounting frame and a driving screw rotatably mounted on the other side, a driving motor is embedded in the mounting frame and the output end of the driving motor is fixedly connected to the driving screw, an electric heater is fixedly embedded on the top of the mounting frame and a heat conducting plate is fixedly mounted on the output end of the electric heater, a plurality of high-pressure nozzles are arranged on the left and right end walls of the mounting frame, a water injection pipe is fixedly mounted on the front end of the mounting frame and the branch pipes of the water injection pipe are fixedly connected to the plurality of high-pressure nozzles, and a cleaning component is arranged on the mounting frame;

[0007] The cleaning assembly includes a bidirectional spring sleeve and a ball bearing. Two bidirectional spring sleeves are provided, one of which is slidably mounted on a sliding rod and the other is threadedly mounted on a driving screw. A connecting rod is movably inserted between both ends of the two bidirectional spring sleeves. A plurality of ball bearings are provided and are slidably mounted on the two connecting rods.

[0008] As a preferred technical solution of the utility model, the heat conducting plate is made of high thermal conductivity brass material and has a plurality of protrusions on the surface.

[0009] As a preferred technical solution of the utility model, a guide groove is opened at the bottom of the installation frame and the two side walls of the guide groove are provided with slopes. A sewage pipe is provided at the bottom of the installation frame and the sewage pipe is fixedly connected to the guide groove.

[0010] As a preferred technical solution of the utility model, flow regulating valves are fixedly installed on the sewage pipe and the water injection pipe, and a one-way valve is integrated in the high-pressure nozzle and the flow direction of the one-way valve is toward the installation frame.

[0011] As a preferred technical solution of the utility model, two connecting pipes are provided and fixedly installed at both ends of the installation frame respectively, two filter plates are provided and fixedly installed between the connecting pipe and the installation frame, and a plurality of filter holes are opened on the filter plate.

[0012] As a preferred technical solution of the utility model, the diameter of the ball is larger than the diameter of the filter hole.

[0013] As a preferred technical solution of the utility model, a sealing cover with the same size as the filter plate is fixedly installed on the connecting pipe.

[0014] The beneficial effects achieved by the utility model are:

[0015] The driving motor drives the bidirectional spring sleeve to move up and down. During the movement, the elastic effect of the bidirectional spring sleeve is used to stretch the ball into the filter hole to eject and remove the attached residual glue, and the filter plate is flushed by spraying through a high-pressure nozzle. At the same time, the hot melt adhesive is kept hot by the electric heater and the heating plate to prevent the hot melt adhesive from cooling and hardening and affecting the cleaning efficiency. There is no need to disassemble and clean it, which reduces the cost of later maintenance of the hot melt adhesive filter. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. Together with the embodiments of the present invention, they are used to explain the present invention and do not constitute a limitation of the present invention. In the accompanying drawings:

[0017] Figure 1 This is a schematic diagram of the structure of a filter screen used in a hot melt rubber pellet production device of the utility model;

[0018] Figure 2 This is a schematic diagram of the structure of the installation frame in the filter screen of the hot melt glue particle production device of the utility model. Figure 1 ;

[0019] Figure 3 This is a schematic diagram of the structure of the installation frame in the filter screen of the hot melt glue particle production device of the utility model. Figure 2 ;

[0020] Figure 4 The utility model is a schematic structural diagram of a cleaning component in a filter screen used in a hot melt glue particle production device.

[0021] In the figure: 1. installation frame; 101. sliding rod; 102. driving screw; 103. electric heater; 104. heat conduction plate; 105. guide groove; 106. water injection pipe; 107. high-pressure nozzle; 108. sewage pipe; 2. connecting pipe; 201. sealing cover; 3. filter plate; 4. cleaning component; 401. bidirectional spring sleeve; 402. ball; 403. connecting rod. DETAILED DESCRIPTION

[0022] The following will be combined with the drawings in the embodiments of the utility model 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 in 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.

[0023] Example: Figure 1-4As shown, a filter screen for a hot melt adhesive particle production device comprises a mounting frame 1, a connecting pipe 2 and a filter plate 3, the left and right sides of the mounting frame 1 are hollow, a sliding rod 101 is fixedly mounted on one side of the mounting frame 1 and a driving screw 102 is rotatably mounted on the other side, a driving motor is embedded in the mounting frame 1 and the output end of the driving motor is fixedly connected to the driving screw 102, an electric heater 103 is fixedly embedded on the top of the mounting frame 1 and a heat conducting plate 104 is fixedly mounted on the output end of the electric heater 103, a plurality of high-pressure nozzles 107 are arranged on the left and right end walls of the mounting frame 1, a water injection pipe 106 is fixedly arranged at the front end of the mounting frame 1 and the branch pipes of the water injection pipe 106 are fixedly connected to the plurality of high-pressure nozzles 107, a cleaning component 4 is arranged on the mounting frame 1, when in use, the heating plate is heated by the electric heater 103, so that the hot melt adhesive is kept relatively hot and heat-insulated to prevent the hot melt adhesive from cooling and hardening and affecting the cleaning efficiency, the water injection pipe 106 is connected to an external water pump, and water supplied by the water pump is sprayed through the high-pressure nozzle 107 to wash the filter plate 3;

[0024] The cleaning component 4 includes a two-way spring sleeve 401 and a ball 402. There are two two-way spring sleeves 401, one of which is slidably mounted on the slide rod 101 and the other is threadedly mounted on the driving screw 102. A connecting rod 403 is movably inserted between the two ends of the two two-way spring sleeves 401. There are multiple balls 402 and they are slidably mounted on the two connecting rods 403. When in use, the driving motor drives the driving screw 102 to rotate. The rotation of the driving screw 102 drives the two-way spring sleeve 401 to move up and down under the limiting action of the slide rod 101, and during the movement, the elastic action of the two-way spring sleeve 401 is used to stretch the ball 402 to embed into the filter hole to remove the attached residual glue.

[0025] The heat conducting plate 104 is made of high thermal conductivity brass material and has a plurality of protrusions on its surface. When in use, the heat conducting capacity of the heat conducting plate 104 is improved and the heat conducting area is increased.

[0026] A guide groove 105 is provided at the bottom of the installation frame 1 and the two side walls of the guide groove 105 are provided with a slope. A sewage pipe 108 is provided at the bottom of the installation frame 1 and the sewage pipe 108 is fixedly connected to the guide groove 105. When in use, the residual glue washed down is mixed with water and flows into the guide groove 105 and is discharged through the sewage pipe 108.

[0027] Flow regulating valves are fixedly installed on the sewage pipe 108 and the water injection pipe 106. A one-way valve is integrated in the high-pressure nozzle 107 and the flow direction of the one-way valve is toward the installation frame. When in use, it can prevent residual glue from flowing back into the one-way valve.

[0028] There are two connecting pipes 2 and they are fixedly installed at both ends of the installation frame 1 respectively. There are two filter plates 3 and they are fixedly installed between the connecting pipe 2 and the installation frame 1. A plurality of filter holes are provided on the filter plate 3. When in use, the hot melt adhesive is transported through the connecting pipe 2 and filtered through the filter holes on the filter plate 3.

[0029] The diameter of the ball 402 is larger than the diameter of the filter hole, and when in use, the residual glue in the filter hole can be pushed out.

[0030] A sealing cover 201 having the same size as the filter plate 3 is fixedly mounted on the connecting pipe 2 . When in use, the sealing cover 201 can not only improve the sealing of the connection, but also prevent the connecting rod 403 from extending and hitting the connecting pipe 2 .

[0031] Specifically, when the utility model is used, the hot melt adhesive is transported through the connecting pipe 2, and the hot melt adhesive is filtered through the filter holes on the filter plate 3. When the filter screen needs to be cleaned, the heating plate is heated by the electric heater 103, so that the hot melt adhesive is kept warm to prevent the hot melt adhesive from cooling and hardening and affecting the cleaning efficiency. The water injection pipe 106 is connected to the external water pump, and the water pump supplies water to spray through the high-pressure nozzle 107 to rinse the filter plate 3. At the same time, the driving motor drives the driving screw 102 to rotate. The driving screw 102 rotates and drives the bidirectional spring sleeve 401 to move up and down under the limiting action of the slide rod 101. During the movement, the elastic action of the bidirectional spring sleeve 401 is used to stretch the ball 402 to embed in the filter hole to push out and remove the attached residual adhesive.

[0032] In the description of the present invention, it should be understood that the terms "coaxial", "bottom", "one end", "top", "middle", "the other end", "upper", "one side", "top", "inside", "front", "center", "both ends" 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 must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0033] In addition, the terms "first", "second", "third" and "fourth" are used for descriptive purposes only and are not to be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, the features defined as "first", "second", "third" and "fourth" may explicitly or implicitly include at least one of such features.

[0034] In the present utility model, unless otherwise clearly stipulated and limited, the terms such as "installation", "setting", "connection", "fixation" and "screw-on" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integrated connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. Unless otherwise clearly defined, ordinary technicians in this field can understand the specific meanings of the above terms in the utility model according to the specific circumstances.

[0035] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A filter screen for a hot melt adhesive pellet production device, comprising a mounting frame (1), a connecting pipe (2) and a filter plate (3), characterized in that: A slide bar (101) is fixedly mounted on one side of the installation frame (1) and a driving screw (102) is rotatably mounted on the other side; a driving motor is embedded in the installation frame (1) and the output end of the driving motor is fixedly connected to the driving screw (102); an electric heater (103) is fixedly embedded in the top of the installation frame (1) and a heat conducting plate (104) is fixedly mounted on the output end of the electric heater (103); a plurality of high-pressure nozzles (107) are disposed on the left and right end walls of the installation frame (1); a water injection pipe (106) is fixedly mounted on the front end of the installation frame (1) and a branch pipe of the water injection pipe (106) is fixedly connected to the plurality of high-pressure nozzles (107); and a cleaning component (4) is disposed on the installation frame (1); The cleaning assembly (4) comprises a bidirectional spring sleeve (401) and a ball bearing (402), wherein two bidirectional spring sleeves (401) are provided, wherein one of the bidirectional spring sleeves (401) is slidably mounted on the slide rod (101) and the other bidirectional spring sleeve (401) is threadedly mounted on the driving screw (102), a connecting rod (403) is movably inserted between the two ends of the two bidirectional spring sleeves (401), and a plurality of ball bearings (402) are provided and are slidably mounted on the two connecting rods (403).

2. A filter screen for a hot melt rubber pellet production device according to claim 1, characterized in that: The heat conducting plate (104) is made of a high heat conducting brass material and has a plurality of protrusions on its surface.

3. The filter screen for hot melt rubber pellet production device according to claim 1, characterized in that: A guide groove (105) is provided at the bottom of the installation frame (1), and two side walls of the guide groove (105) are provided with slopes. A sewage discharge pipe (108) is provided at the bottom of the installation frame (1), and the sewage discharge pipe (108) is fixedly connected to the guide groove (105).

4. A filter screen for a hot melt rubber pellet production device according to claim 3, characterized in that: The sewage discharge pipe (108) and the water injection pipe (106) are both fixedly mounted with flow regulating valves, and the high-pressure nozzle (107) is integrated with a one-way valve, and the flow direction of the one-way valve faces the inside of the installation frame.

5. The filter screen for hot melt rubber pellet production device according to claim 1, characterized in that: The connecting pipes (2) are provided with two and are respectively fixedly mounted at the two ends of the mounting frame (1); the filter plates (3) are provided with two and are fixedly mounted between the connecting pipe (2) and the mounting frame (1); and the filter plates (3) are provided with a plurality of filter holes.

6. A filter screen for a hot melt rubber pellet production device according to claim 5, characterized in that: The diameter of the ball (402) is greater than the diameter of the filter hole.

7. The filter screen for hot melt rubber pellet production device according to claim 1, characterized in that: A sealing cover (201) having the same size as the filter plate (3) is fixedly mounted on the connecting pipe (2).

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