Double-screw extrusion molding device for draw-bar box plate

Abstract

The utility model relates to the technical field of double-screw extrusion devices, in particular to a double-screw extrusion molding device for draw-bar box plates, which comprises a base and a box body, the surface of the base is fixedly connected with the box body, the surface of the box body is provided with an auxiliary blanking device, and the auxiliary blanking device is provided with a screw. An auxiliary forming device is arranged on the surface of the base, the surface of the box body is fixedly connected with the surface of a third motor through a support, an auxiliary discharging device is matched with a feeding hopper, plastic raw materials are controlled to enter the box body from the feeding hopper through a baffle, and the situation that the heating efficiency of the plastic raw materials is reduced due to excessive feeding of the plastic raw materials at a time is avoided; and through cooperation of the auxiliary forming device and the discharging pipe, an output shaft of a second motor continuously rotates to drive a collision block to continuously collide with the surface of the discharging pipe, manual knocking by an operator is not needed any more, the workload of the operator is reduced, and the working quality is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of twin-screw extrusion devices, in particular to a twin-screw extrusion molding device for a trolley case plate. Background Art

[0002] Twin-screw extruder is a kind of equipment used for plastic processing and extrusion molding. It plasticizes, mixes and extrude plastics through the synergistic action of two screws to form the desired product shape. The twin-screw extruder is used to produce trolley case sheets.

[0003] For example, a twin-screw extruder for luggage panels with the authorization announcement number "CN216230685U" drives the rotating shaft to rotate through a second motor, and the rotation of the rotating shaft drives the scraper to rotate, so that the inner wall of the feed hopper can be cleaned to avoid agglomeration on the inner wall of the feed hopper. No manual cleaning is required, which improves the cleaning efficiency, and there is no need to stop the machine for cleaning, thereby improving the working efficiency of the twin-screw extruder. However, when the device feeds the material into the extrusion barrel through the feed hopper, due to the lack of a control feeding device, when too much plastic raw material is fed at one time, the heating efficiency of the device for the plastic raw material is reduced, resulting in reduced extrusion molding quality of the device. When the device extrudes the plastic raw material through a discharge pipe, bubbles will remain inside, and the operator needs to manually knock on the discharge pipe to defoam the plastic raw material, which increases the workload of the operator and reduces the working quality of the device. Utility Model Content

[0004] The utility model aims to solve the problem of lack of a controlled feeding device. When too much plastic raw material is fed at one time, the heating efficiency of the device on the plastic raw material is reduced, resulting in reduced extrusion molding quality of the device and residual bubbles inside the plastic raw material when it is extruded. An operator is required to manually knock on the discharge pipe to defoam the plastic raw material, which increases the workload of the operator and reduces the working quality of the device. A twin-screw extrusion molding device for trolley case plates is proposed.

[0005] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0006] A twin-screw extrusion molding device for trolley case sheet material is designed, comprising a base and a box body, the surface of the base is fixedly connected to the box body, the surface of the box body is provided with an auxiliary unloading device, the surface of the base is provided with an auxiliary molding device, the surface of the box body is fixedly connected to the surface of a third motor through a bracket, the output shaft of the third motor is rotatably connected to the surface of the box body through a bearing, and the output shaft of the third motor is fixedly connected to a twin-screw body.

[0007] Preferably, the auxiliary unloading device includes a first motor and a first shell, the surface of the first shell is fixedly connected to the surface of the box, the first motor is fixedly connected to the surface of the first shell through a bracket, the output shaft of the first motor is fixedly connected to a worm, the worm is meshed with a worm wheel, the protruding part of the worm wheel surface is fixedly connected to a rotating rod, the other end of the rotating rod is slidably connected to a slideway opened on the surface of the slider through a pulley, and the surface of the slider is fixedly connected to a baffle.

[0008] Preferably, the protruding portion of the worm wheel surface is rotationally connected to the first shell surface via a bearing, the slider surface is slidably connected to a slideway provided on the first shell surface, and the baffle surface is slidably connected to a slideway provided on the feed hopper surface.

[0009] Preferably, a heating block is fixedly connected to the surface of the box body, the surface of the box body is fixedly connected to the bottom end of the feed hopper, the surface of the box body is fixedly connected to one end of the discharge pipe, and the surface of the base is fixedly connected to a supporting leg.

[0010] Preferably, the auxiliary forming device includes a second motor and a second shell, the surface of the second shell is fixedly connected to the surface of the base, the second motor is fixedly connected to the second shell surface through a bracket, the output shaft of the second motor is rotatably connected to the second shell surface through a bearing, the output shaft of the second motor is fixedly connected with a protrusion, the surface of the protrusion is tightly pressed against the surface of the collision block, the surface of the second shell is fixedly connected with a fixing rod, and the surface of the fixing rod is sleeved with a spring.

[0011] Preferably, the collision block surface is slidably connected to a slideway provided on the second shell surface, and two ends of the spring are fixedly connected to the second shell surface and the collision block surface respectively.

[0012] The utility model proposes a twin-screw extrusion molding device for trolley case plates, which has the beneficial effects of: through the cooperation of the auxiliary unloading device and the feed hopper, the output shaft of the first motor is started to rotate to drive the worm to rotate, and the rotation of the worm drives the worm wheel and the rotating rod to rotate synchronously, and the pulley at one end of the rotating rod slides inside the slideway opened on the surface of the slider to drive the slider to move to the right, and the slider drives the baffle plate away from the feed hopper, and the baffle plate no longer blocks the inside of the feed hopper, and the plastic raw material enters the interior of the box body. The baffle plate controls the plastic raw material to enter the interior of the box body from the feed hopper, so that too much plastic raw material is avoided from being fed at one time, resulting in reduced heating efficiency of the plastic raw material, thereby improving the extrusion molding quality.

[0013] Through the cooperation of the auxiliary molding device and the discharge pipe, the output shaft of the second motor is started to rotate to drive the protrusion to rotate, and the rotation of the protrusion pushes the impact block to hit the surface of the discharge pipe. The spring is stretched when the impact block moves, and the surface of the impact block is fit with the surface of the protrusion under the reaction force of the spring. The output shaft of the second motor continuously rotates to drive the impact block to continuously hit the surface of the discharge pipe. The vibration generated by the impact vibrates the plastic raw material and makes it dense, thereby reducing the bubble content in the plastic raw material. The operator is no longer required to knock manually, which reduces the workload of the operator and improves the work quality. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a schematic diagram of the structure of the utility model;

[0015] Figure 2 for Figure 1 A front cross-sectional view of

[0016] Figure 3 for Figure 1 A side cross-sectional view of

[0017] Figure 4 for Figure 1 A top sectional view of

[0018] Figure 5 for Figure 2 Part A of the figure;

[0019] Figure 6 for Figure 2 Side sectional view of the auxiliary unloading device.

[0020] In the figure: 1. base, 2. auxiliary unloading device, 201. first motor, 202. first housing, 203. worm, 204. worm wheel, 205. rotating rod, 206. slider, 207. baffle, 3. auxiliary molding device, 301. second motor, 302. second housing, 303. cam, 304. impact block, 305. fixing rod, 306. spring, 4. box body, 5. third motor, 6. twin screw body, 7. heating block, 8. feed hopper, 9. discharge pipe, 10. support leg. DETAILED DESCRIPTION

[0021] The utility model is further described below in conjunction with the accompanying drawings:

[0022] Refer to the attached Figure 1-6In the present embodiment, a twin-screw extrusion molding device for trolley case sheet material includes a base 1 and a box body 4. The surface of the base 1 is fixedly connected to the box body 4. The surface of the box body 4 is provided with an auxiliary unloading device 2. The surface of the base 1 is provided with an auxiliary molding device 3. The surface of the box body 4 is fixedly connected to the surface of the third motor 5 through a bracket. The third motor 5 can meet the working requirements according to actual requirements. The output shaft of the third motor 5 is rotatably connected to the surface of the box body 4 through a bearing. The output shaft of the third motor 5 is fixedly connected to the twin screw body 6. The twin screw body 6 has been disclosed in the authorization announcement number "CN216230685U" and will not be described in detail here.

[0023] The protruding part of the worm gear 204 is rotationally connected to the surface of the first shell 202 through a bearing, the slider 206 is slidably connected to the slideway opened on the surface of the first shell 202, the baffle 207 is slidably connected to the slideway opened on the surface of the feed hopper 8, the feed hopper 8 limits the position and movement track of the baffle 207, the surface of the box body 4 is fixedly connected to the heating block 7, the heating block 7 is provided with a heating wire inside, the surface of the box body 4 is fixedly connected to the bottom end of the feed hopper 8, the surface of the box body 4 is fixedly connected to one end of the discharge pipe 9, the surface of the base 1 is fixedly connected to the support leg 10, the surface of the impact block 304 is slidably connected to the slideway opened on the surface of the second shell 302, the two ends of the spring 306 are respectively fixedly connected to the surface of the second shell 302 and the surface of the impact block 304, and the elastic coefficient of the spring 306 can meet the working requirements according to actual requirements.

[0024] Refer to the attached Figure 1-3 , 5 and 6: The auxiliary unloading device 2 includes a first motor 201 and a first housing 202. The first motor 201 is a servo motor. It can meet the working requirements according to actual requirements. The surface of the first housing 202 is fixedly connected to the surface of the box body 4. The first motor 201 is fixedly connected to the surface of the first housing 202 through a bracket. The output shaft of the first motor 201 is fixedly connected to a worm 203. The worm 203 is meshed with a worm wheel 204. The rotation of the worm 203 drives the worm wheel 204 to rotate. The protruding part on the surface of the worm wheel 204 is fixedly connected to a rotating rod 205. The rotation of the worm wheel 204 drives the rotating rod 205 to rotate synchronously. The other end of the rotating rod 205 is slidably connected to a slideway opened on the surface of a slider 206 through a pulley. The surface of the slider 206 is fixedly connected to a baffle 207.

[0025] Refer to the attached Figure 1-4: The auxiliary molding device 3 includes a second motor 301 and a second shell 302. The second motor 301 can meet the working requirements according to actual requirements. The surface of the second shell 302 is fixedly connected to the surface of the base 1. The second motor 301 is fixedly connected to the surface of the second shell 302 through a bracket. The output shaft of the second motor 301 is rotatably connected to the surface of the second shell 302 through a bearing. The output shaft of the second motor 301 is fixedly connected with a protrusion 303. The surface of the protrusion 303 is tightly pressed against the surface of the collision block 304. The rotation of the protrusion 303 drives the collision block 304 to move. The surface of the second shell 302 is fixedly connected with a fixing rod 305, and the surface of the fixing rod 305 is sleeved with a spring 306.

[0026] Working principle:

[0027] Auxiliary unloading process of twin-screw extruder for trolley case sheet:

[0028] The operator pours a certain amount of plastic raw material into the feed hopper 8, connects the external power supply of the first motor 201, starts the output shaft of the first motor 201 to rotate, drives the worm 203 to rotate, and the rotation of the worm 203 drives the worm wheel 204 and the rotating rod 205 to rotate synchronously. The pulley at one end of the rotating rod 205 slides inside the slideway opened on the surface of the slider 206, drives the slider 206 to move to the right, and the slider 206 drives the baffle 207 away from the feed hopper 8. The baffle 207 no longer blocks the inside of the feed hopper 8, and the plastic raw material enters the inside of the box body 4, which is convenient for subsequent extrusion molding. According to the above operation, the output shaft of the first motor 201 is started again to reverse and drive the baffle 207 to move back to its original position, and the feed hopper 8 is blocked, completing the auxiliary unloading process of the twin-screw extrusion molding device for the trolley box sheet material.

[0029] Heating extrusion process of twin-screw extruder for trolley case sheet:

[0030] Connect the external power supply of the heating block 7, energize the heating wire inside the heating block 7, and the heat generated by the heating wire is transferred to the inside of the box body 4 through the heating block 7 to heat the plastic raw material. After the heating is completed, connect the external power supply of the third motor 5, start the output shaft of the third motor 5 to rotate and drive the twin screw body 6 to rotate. The twin screw body 6 extrude the heated plastic raw material into the molding mold through the discharge pipe 9, thereby completing the heating and extrusion process of the twin screw extrusion molding device for the trolley case sheet material.

[0031] Auxiliary molding process of twin-screw extruder for trolley case sheet:

[0032] Since bubbles will remain when the plastic raw material is extruded, the external power supply of the second motor 301 is turned on, and the output shaft of the second motor 301 is started to rotate to drive the protrusion 303 to rotate. The rotation of the protrusion 303 pushes the impact block 304 to hit the surface of the discharge pipe 9. The impact block 304 stretches the spring 306 when it moves, and the surface of the impact block 304 fits with the surface of the protrusion 303 under the reaction force of the spring 306. The output shaft of the second motor 301 continuously rotates to drive the impact block 304 to continuously hit the surface of the discharge pipe 9. The vibration generated by the impact vibrates and compacts the plastic raw material, thereby reducing the bubble content in the plastic raw material, completing the auxiliary molding process of the twin-screw extrusion molding device for trolley case sheets.

[0033] Although the present invention has been shown and described with reference to the preferred embodiments, it will be understood by those skilled in the art that various changes in form and details may be made therein within the scope of the claims.

Claims

1. A twin-screw extrusion molding device for a trolley case sheet material, comprising a base (1) and a case body (4), wherein the case body (4) is fixedly connected to the surface of the base (1), characterized in that: The surface of the box body (4) is provided with an auxiliary material unloading device (2), the surface of the base (1) is provided with an auxiliary molding device (3), the surface of the box body (4) is fixedly connected to the surface of the third motor (5) via a bracket, the output shaft of the third motor (5) is rotatably connected to the surface of the box body (4) via a bearing, and the output shaft of the third motor (5) is fixedly connected to a twin-screw body (6).

2. A twin-screw extruder for a trolley case sheet material according to claim 1, characterized in that: The auxiliary unloading device (2) comprises a first motor (201) and a first housing (202); the surface of the first housing (202) is fixedly connected to the surface of the box body (4); the first motor (201) is fixedly connected to the surface of the first housing (202) via a bracket; a worm (203) is fixedly connected to the output shaft of the first motor (201); the worm (203) is meshed with a worm wheel (204); a rotating rod (205) is fixedly connected to a protruding portion of the surface of the worm wheel (204); the other end of the rotating rod (205) is slidably connected to a slideway provided on the surface of a slider (206) via a pulley; and a baffle (207) is fixedly connected to the surface of the slider (206).

3. A twin-screw extruder for a trolley case sheet material according to claim 2, characterized in that: The protruding portion of the worm wheel (204) is rotatably connected to the surface of the first housing (202) via a bearing, the slider (206) is slidably connected to a slideway provided on the surface of the first housing (202), and the baffle (207) is slidably connected to a slideway provided on the surface of the feed hopper (8).

4. A twin-screw extruder for a trolley case sheet material according to claim 1, characterized in that: The surface of the box body (4) is fixedly connected to a heating block (7), the surface of the box body (4) is fixedly connected to the bottom end of the feed hopper (8), the surface of the box body (4) is fixedly connected to one end of the discharge pipe (9), and the surface of the base (1) is fixedly connected to a support leg (10).

5. The twin-screw extruder for a trolley case sheet material according to claim 1, characterized in that: The auxiliary molding device (3) comprises a second motor (301) and a second housing (302); the surface of the second housing (302) is fixedly connected to the surface of the base (1); the second motor (301) is fixedly connected to the surface of the second housing (302) via a bracket; the output shaft of the second motor (301) is rotatably connected to the surface of the second housing (302) via a bearing; the output shaft of the second motor (301) is fixedly connected to a protrusion (303); the surface of the protrusion (303) is tightly pressed against the surface of the collision block (304); the surface of the second housing (302) is fixedly connected to a fixing rod (305); the surface of the fixing rod (305) is sleeved with a spring (306).

6. A twin-screw extruder for a trolley case sheet material according to claim 5, characterized in that: The surface of the collision block (304) is slidably connected to a slideway provided on the surface of the second shell (302), and two ends of the spring (306) are respectively fixedly connected to the surface of the second shell (302) and the surface of the collision block (304).

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