Supporting frame for machine barrel of plastic extruder

Abstract

The utility model provides a plastic extruder cylinder support frame which comprises an extruder cylinder and a base, and further comprises a support frame, the support frame comprises two support rods and a self-adaptive structure, and the support rods are used for supporting the cylinder; the self-adaptive structure is arranged on the two supporting rods and comprises a horizontal self-adaptive device and a vertical self-adaptive device; the vertical self-adaptive device comprises a movable rod and a supporting table, the movable rod is movably inserted into the supporting rod in the length direction of the supporting rod, the supporting table is arranged on the movable rod, the supporting table is located at the end, away from the supporting rod, of the movable rod, and the supporting table is attached to the machine barrel; the horizontal self-adaption device comprises a sliding block and a sliding groove, the sliding groove is formed in the supporting table and is perpendicular to the length direction of the machine barrel, and the sliding block slides in the sliding groove and is fixed to the end, away from the supporting rod, of the movable rod. The service life of the supporting frame can be prolonged, and the maintenance workload can be reduced.

Description

Technical Field

[0001] The utility model relates to the field of extruders, in particular to a barrel support frame for a plastic extruder. Background Art

[0002] Plastic extruders are widely used in the processing and molding of plastics. During the use of plastic extruders, it is generally required to reach a certain height for convenient operation. Therefore, support rods are generally provided under the barrels of plastic extruders. Existing support rods for plastic extruder barrels generally consist of a base and a fixed arm provided on the base. The fixed arm is directly fixedly connected to the barrel with bolts or screws. During the working process, the barrel of the plastic extruder is often heated to 100 - 150 °C. At this time, for large and medium-sized plastic extruders, the total expansion length of the barrel usually increases by 10 - 15 mm or more. Therefore, under the rigid connection structure between the plastic extruder barrel and the support frame, the huge expansion force of the plastic extruder barrel on the one hand usually deforms the support frame, resulting in a short service life of the support frame and a large amount of maintenance work. Content of the Utility Model

[0003] This application provides a barrel support frame for a plastic extruder, which has the effect of adapting to the thermal expansion of the barrel.

[0004] The following technical solution is adopted for the barrel support frame for a plastic extruder provided in this application:

[0005] A barrel support frame for a plastic extruder includes an extruder barrel and a base, and further includes a support frame. The support frame includes two support rods and an adaptive structure. The support rods are used to support the barrel. The adaptive structure is arranged on the two support rods. The adaptive structure includes a horizontal adaptive device and a vertical adaptive device. The vertical adaptive device includes a movable rod and a support platform. The movable rod is movably inserted into the support rod along the length direction of the support rod. The support platform is arranged on the movable rod. The support platform is located at the end of the movable rod away from the support rod. The support platform is attached to the barrel.

[0006] The horizontal adaptive device includes a slider and a chute. The chute is arranged on the support platform. The chute is arranged perpendicular to the length direction of the barrel. The slider slides in the chute. The slider is fixed to the end of the movable rod away from the support rod.

[0007] With the above technical solution, during the extrusion process, when the barrel expands due to heat, in the vertical direction, the barrel will push the movable rod to move along the length direction of the movable rod, so that the support frame can adapt to the change of the barrel along the length direction of the movable rod; in the horizontal direction, the setting of the slider and the chute reduces the force exerted by the expansion of the barrel perpendicular to the length direction of the barrel on the movable rod. Thus, the support frame can adapt to the dimensional changes caused by the expansion of the barrel during operation, improving the service life of the support frame and reducing the maintenance workload.

[0008] Preferably, the vertical adaptive device further includes a first spring. The two ends of the first spring are respectively arranged on one end of the movable rod facing the support rod and on the inner wall of the support rod. The stretching direction of the first spring is parallel to the length direction of the support rod, and the first spring is always in a stretched state.

[0009] With the above technical solution, the first spring pushes the support platform on the movable rod to always abut against the bottom surface of the machine table when the barrel expands due to heat and contracts due to cooling, thereby ensuring the stability of the barrel in sequence.

[0010] Preferably, a plurality of rotating cylinders are rotatably arranged on the support platform, and the length direction of the rotating cylinder is perpendicular to the length direction of the barrel.

[0011] With the above technical solution, the setting of the rotating cylinder reduces the friction between the barrel and the bearing platform, reduces the influence of the barrel on the bearing platform when the barrel expands and elongates along the length direction of the barrel, and further reduces the influence on the movable rod, reducing the force on the movable rod along the length direction of the barrel, thereby enhancing the structural life.

[0012] Preferably, a support platform is respectively arranged on each of the movable rods. The cross section of the support platform is L-shaped. The two support platforms are arranged oppositely, and there is a gap between the two support platforms.

[0013] With the above technical solution, a support platform is respectively arranged on the movable rods and a gap is left in the middle to avoid the situation that the support platform is damaged by stress pulling when the same support platform is arranged on two movable rods during the repeated expansion and contraction of the barrel, thereby enhancing the structural life.

[0014] Preferably, the horizontal adaptive device further includes a plurality of second springs. The two ends of the second spring are respectively connected to the two support platforms. The telescopic direction of the second spring is perpendicular to the length direction of the barrel, and the second spring is always in a stretched state.

[0015] With the above technical solution, after the work is completed and the barrel cools down and returns to its original size, the second spring drives the support platform to also return to its original size, so that the support platform can always fit against the side wall of the barrel and maintain stability.

[0016] Preferably, the horizontal adaptive device further includes a reminder member, which includes a detection strip and a buzzer. The detection strip is suspended vertically in the gap between the two support platforms. One end of the detection strip is fixed to the support platform away from the buzzer, and the other end of the detection strip is inserted into the buzzer. The buzzer is arranged on the bottom surface of the support platform, and a power supply is arranged in the buzzer.

[0017] Through the above technical solution, when the barrel expands due to heat, the detection strip is stretched when the support platform moves along the direction perpendicular to the length of the barrel. When the expansion of the barrel exceeds the normal range, the end of the detection strip inserted into the buzzer is pulled out, triggering the buzzer, thereby emitting an alarm to remind the operator, so as to achieve the monitoring of the temperature inside the barrel and the quality of the barrel itself.

[0018] Preferably, the support frame further includes a head frame for clamping the head. A heat insulation layer is also arranged on the head frame and is located near the head.

[0019] Through the above technical solution, the setting of the head frame is used to ensure the stability of the head when the support frame adapts to the expansion degree of the barrel, so as to ensure the extrusion quality. At the same time, the setting of the heat insulation layer is to ensure that the extrusion material will not be blocked due to temperature difference when the head extrudes.

[0020] The technical effects of the present invention are mainly reflected in the following aspects:

[0021] 1. By setting the horizontal adaptive device, the present invention can adapt to the dimensional changes caused by the expansion of the barrel during operation in the extrusion process, improve the service life of the support frame, and reduce the maintenance workload;

[0022] 2. By setting the vertical adaptive device, the present invention can adapt to the dimensional changes caused by the expansion of the barrel during operation in the extrusion process, improve the service life of the support frame, and reduce the maintenance workload;

[0023] 3. By setting a reminder member in the horizontal adaptive device, the present invention monitors the expansion size of the barrel, so as to achieve the monitoring of the temperature inside the barrel and the quality of the barrel itself. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 is a schematic diagram of the overall structure of an embodiment of the present application;

[0025] Figure 2 is a schematic diagram of the overall structure of the adaptive structure in an embodiment of the present application;

[0026] Figure 3 is along Figure 2 a schematic cross-sectional view taken along the A-A section line in;

[0027] Figure 4 This is a schematic diagram of the overall structure of the embodiment of the present application.

[0028] Reference numerals: 1, extruder barrel; 11, head; 2, base; 3, support frame; 31, support rod; 32, adaptive structure; 33, horizontal adaptive device; 331, slider; 332, chute; 333, second spring; 334, reminder; 3341, detection strip; 3342, buzzer; 34, vertical adaptive device; 341, movable rod; 342, support platform; 3421, rotating cylinder; 343, first spring; 35, head frame; 351, heat insulation layer. Specific embodiments

[0029] The following will Figures 1-4 be further described in detail in conjunction with the attached drawings to make the technical solutions of the present utility model easier to understand and master.

[0030] The embodiment of the present application discloses a support frame for an extruder barrel of a plastic extruder:

[0031] Referring to Figures 1-4 , a support frame for an extruder barrel of a plastic extruder includes an extruder barrel and a base, and further includes a support frame. The support frame includes two support rods and an adaptive structure. The support rods are used to support the barrel. The adaptive structure is arranged on the two support rods. The adaptive structure includes a horizontal adaptive device and a vertical adaptive device. The vertical adaptive device includes a movable rod and a support platform. The movable rod is movably inserted into the support rod along the length direction of the support rod. The support platform is fixed on the movable rod. The support platform is located at the end of the movable rod away from the support rod. The support platform is attached to the barrel. The horizontal adaptive device includes a slider and a chute. The chute is opened on the support platform. The chute is arranged perpendicular to the length direction of the barrel. The slider slides in the chute. The slider is fixed on the end of the movable rod away from the support rod.

[0032] During the extrusion process, when the barrel expands due to heat, in the vertical direction, the barrel will push the movable rod to move along the length direction of the movable rod, so that the support frame can adapt to the change of the barrel along the length direction of the movable rod; and in the horizontal direction, the setting of the slider and the chute reduces the acting force of the expansion of the barrel perpendicular to the length direction of the barrel on the movable rod. Thus, the support frame can adapt to the dimensional change caused by the expansion of the barrel during operation, improve the service life of the support frame, and reduce the maintenance workload.

[0033] Referring to Figures 2-3, the vertical adaptive device further includes a first spring. The two ends of the first spring are respectively fixed on one end of the movable rod facing the support rod and on the inner wall of the support rod. The stretching direction of the first spring is parallel to the length direction of the support rod, and the first spring is always in a stretched state. The first spring pushes the support platform on the movable rod to always abut against the bottom surface of the machine table when the barrel expands due to heat and contracts due to cooling, thereby ensuring the stability of the barrel in sequence.

[0034] Refer to Figures 2-3 , a plurality of rotating cylinders are rotatably arranged on the support platform, and the length direction of the rotating cylinder is perpendicular to the length direction of the barrel. The arrangement of the rotating cylinders reduces the friction between the barrel and the bearing platform, reduces the influence of the barrel on the bearing platform when the barrel expands and elongates along the length of the barrel, thereby reducing the influence on the movable rod and reducing the force on the movable rod along the length direction of the barrel, so as to enhance the structural life.

[0035] A support platform is respectively fixed on each of the movable rods. The cross-section of the support platform is L-shaped. The two support platforms are arranged oppositely, and there is a gap between the two support platforms. Fixing a support platform on each of the movable rods and leaving a gap in the middle is to avoid the situation that the support platform is damaged by stress pulling when the same support platform is fixed on two movable rods during the repeated expansion and contraction of the barrel, so as to enhance the structural life.

[0036] Refer to Figures 2-3 , the horizontal adaptive device further includes a plurality of second springs. The two ends of the second spring are respectively connected to the two support platforms. The telescopic direction of the second spring is perpendicular to the length direction of the barrel, and the second spring is always in a stretched state. When the work is over and the barrel cools down and returns to its original size, the second spring drives the support platform to also return to its original size, so that the support platform can always fit on the side wall of the barrel to maintain stability.

[0037] Refer to Figure 3 , the horizontal adaptive device further includes a reminder. The reminder includes a detection strip and a buzzer. The detection strip is vertically suspended in the gap between the two support platforms. One end of the detection strip is fixed on the support platform far from the buzzer, and the other end of the detection strip is inserted into the buzzer. The buzzer is fixed on the bottom surface of the support platform, and a power supply is arranged in the buzzer. When the barrel expands due to heat, the detection strip is stretched when the support platform moves along the direction perpendicular to the length direction of the barrel. When the barrel expands beyond the normal range, the end of the detection strip inserted into the buzzer is pulled out, triggering the buzzer, thereby emitting an alarm to remind the operator, so as to achieve the monitoring of the temperature in the barrel and the quality of the barrel itself.

[0038] Refer to Figure 1 and Figure 4, the support frame further includes a machine head frame which is used for clamping the machine head. A heat insulation layer is also fixed on the machine head frame and is located near the machine head. By providing the machine head frame, the stability of the machine head when the support frame adapts to the expansion degree of the barrel is ensured, thus guaranteeing the extrusion quality. At the same time, the heat insulation layer reduces the situation of material jamming during extrusion caused by temperature difference.

[0039] Certainly, the above are only typical examples of the present utility model. In addition, the present utility model can also have many other specific implementation manners. All technical solutions formed by equivalent replacement or equivalent transformation fall within the scope of protection required by the present utility model.

Claims

1. A barrel support frame of a plastic extruder, comprising an extruder barrel (1) and a base (2), characterized in that, It further includes a support frame (3), the support frame (3) includes two support rods (31) and an adaptive structure (32), the support rods (31) are used to support the barrel (1); the adaptive structure (32) is arranged on the two support rods (31), the adaptive structure (32) includes a horizontal adaptive device (33) and a vertical adaptive device (34); the vertical adaptive device (34) includes a movable rod (341) and a support platform (342), the movable rod (341) is movably inserted into the support rod (31) along the length direction of the support rod (31), the support platform (342) is arranged on the movable rod (341), the support platform (342) is located at the end of the movable rod (341) away from the support rod (31), and the support platform (342) is attached to the barrel (1); The horizontal adaptive device (33) includes a slider (331) and a chute (332), the chute (332) is arranged on the support platform (342), the chute (332) is arranged perpendicular to the length direction of the barrel (1), the slider (331) slides in the chute (332), and the slider (331) is fixed to the end of the movable rod (341) away from the support rod (31).

2. The barrel support frame of a plastic extruder according to claim 1, characterized in that, The vertical adaptive device (34) further includes a first spring (343), both ends of the first spring (343) are respectively arranged on the end of the movable rod (341) facing the support rod (31) and the inner wall of the support rod (31), the stretching direction of the first spring (343) is parallel to the length direction of the support rod (31), and the first spring (343) is always in a stretched state.

3. The barrel support frame of a plastic extruder according to claim 1, characterized in that, A plurality of rotating cylinders (3421) are rotatably arranged on the support platform (342), and the length direction of the rotating cylinder (3421) is perpendicular to the length direction of the barrel (1).

4. A barrel support frame of a plastic extruder according to claim 1, characterized in that A support platform (342) is respectively arranged on the movable rod (341), the cross section of the support platform (342) is L-shaped, the two support platforms (342) are arranged oppositely, and a gap is left between the two support platforms (342).

5. The barrel support frame of a plastic extruder according to claim 1, characterized in that, The horizontal adaptive device (33) further includes a plurality of second springs (333), both ends of the second spring (333) are respectively connected to the two support platforms (342), the telescopic direction of the second spring (333) is perpendicular to the length direction of the barrel (1), and the second spring (333) is always in a stretched state.

6. The barrel support frame of a plastic extruder according to claim 1, characterized in that, The horizontal adaptive device (33) further includes a reminder (334), the reminder (334) includes a detection strip (3341) and a buzzer (3342), the detection strip (3341) hangs vertically in the gap between the two support platforms (342), one end of the detection strip (3341) is fixed to the support platform (342) away from the buzzer (3342), the other end of the detection strip (3341) is inserted into the buzzer (3342), the buzzer (3342) is arranged on the bottom surface of the support platform (342), and a power supply is arranged in the buzzer (3342).

7. A barrel support frame of a plastic extruder according to claim 1, characterized in that The support frame (3) further includes a machine head (11) frame for clamping the machine head (11), and a heat insulation layer (351) is further provided on the machine head (11) frame and is located near the machine head (11).

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