CN214111128U - Online four-roller preheating machine for PP (polypropylene) products - Google Patents
Online four-roller preheating machine for PP (polypropylene) products Download PDFInfo
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- CN214111128U CN214111128U CN202023015407.1U CN202023015407U CN214111128U CN 214111128 U CN214111128 U CN 214111128U CN 202023015407 U CN202023015407 U CN 202023015407U CN 214111128 U CN214111128 U CN 214111128U
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Abstract
An online four-roller preheating machine for PP products comprises: the front side of the electric box is provided with a preheating chamber, the back side of the electric box is provided with a heat insulation chamber, the front side of the electric box is provided with an inlet, and the back side of the electric box is provided with an outlet; the inlet is connected with the feeding mechanism, and the outlet is connected with the discharging mechanism; the heating roller combination frames are arranged in the preheating chamber of the case, and at least two heating roller combination frames are arranged side by side, fixedly connected with the case and electrically connected with the electric box; the air heater is arranged in the heat insulation chamber, and an air outlet and an air inlet of the air heater penetrate through the partition plates of the preheating chamber and the heat insulation chamber to be communicated to the preheating chamber and are powered by the electric box.
Description
Technical Field
The utility model discloses a plastic products production machinery, concretely relates to online four roller preheater of PP goods.
Background
Before plastic sheets enter a forming machine for forming, the plastic sheets need to be heated and softened so as to heat thicker plastic sheets and achieve the purpose of high efficiency and energy saving, and a plastic sheet preheating machine needs to be matched before the forming machine. The traditional plastic sheet preheating machine generally comprises a machine frame and two heating rollers, namely a first heating roller and a second heating roller, wherein the first heating roller and the second heating roller can be rotatably arranged on the machine frame, and a sheet traction mechanism is arranged behind the first heating roller and the second heating roller. The front parts of the first heating roller and the second heating roller are generally provided with a front guide frame, the rear parts of the first heating roller and the second heating roller are generally provided with a rear guide frame, and the front guide frame and the rear guide frame are used for guiding the plastic sheets to accurately move. The plastic sheet enters the plastic sheet preheating machine through the front sheet guiding frame, the plastic sheet passes through the space between the first heating roller and the second heating roller, and two sides of the plastic sheet are respectively contacted with the first heating roller and the second heating roller; under the traction of the sheet traction mechanism, the plastic sheet is conveyed forwards and drives the first heating roller and the second heating roller to rotate, and meanwhile, the first heating roller and the second heating roller respectively preheat the plastic sheet in contact with the first heating roller and the second heating roller, wherein the first heating roller heats one surface of the plastic sheet, and the second heating roller heats the other surface of the plastic sheet; the preheated plastic sheet is output from the plastic sheet preheater to the next process through the rear guide frame.
Chinese patent publication No. CN204820019U, published 2015, 6 and 2, entitled plastic sheet preheating machine, and discloses a plastic sheet preheating machine, which includes a preheating cabinet, an electrical box is provided outside the top of the preheating cabinet, the electrical box is connected to an external cantilever operation box, a sheet feeding device is provided at one side of the preheating cabinet, a sheet discharging device is provided at one side opposite to the sheet feeding device, a unit is preset in the preheating cabinet, the preheating unit includes an upper preheating roller and a lower preheating roller, heating pipes and heat pipes for uniformly transferring heat generated by the heating pipes to the outer surface of the rollers are provided in the upper preheating roller and the lower preheating roller, a driving rubber shaft and a sheet storage pressure shaft are sequentially provided at the sheet discharging side of the preset unit, and a circulation fan is provided at the top of the preheating cabinet. The utility model discloses be equipped with external cantilever control box, convenient operation uses, is equipped with the heat pipe in through the roller, utilizes the heat pipe technique to guarantee that the heat on roller surface is even, and convenient accurate control.
But the defects of the method still adopt a group of heating facilities, and the heat is difficult to be uniform when a continuous and thick non-sheet pipe is heated.
SUMMERY OF THE UTILITY MODEL
The utility model discloses an only produce the uneven problem of heating easily and designed a PP goods on-line four roller preheater to current preheater when heating PP tubular product by a set of heating roller.
An online four-roller preheating machine for PP products comprises: an electric box, a driving rod, a feeding mechanism, a discharging mechanism and a temperature sensor,
the front side of the machine box is provided with a preheating chamber, the back side of the machine box is provided with a heat insulation chamber, the front side of the machine box is provided with an inlet, and the back side of the machine box is provided with an outlet;
the inlet is connected with the feeding mechanism, and the outlet is connected with the discharging mechanism;
the heating roller combination frames are arranged in the preheating chamber of the case, and at least two heating roller combination frames are arranged side by side, fixedly connected with the case and electrically connected with the electric box;
the air heater is arranged in the heat insulation chamber, and an air outlet and an air inlet of the air heater penetrate through the partition plates of the preheating chamber and the heat insulation chamber to be communicated to the preheating chamber and are powered by the electric box.
Preferably, the number of the temperature sensors is at least four, the temperature sensors are arranged on the heating roller combination rack at equal intervals and are all electrically connected with the electric box.
Preferably, the heating roller assembly frame comprises:
the middle section of the door-shaped frame is provided with two bearing mounting holes which are arranged up and down, and the bearing mounting hole positioned on the upper side is closer to the outlet direction than the bearing mounting hole positioned on the lower side in the horizontal position;
the electric ring bearing is arranged on a bearing mounting hole on the binding surface of the door-shaped frame and the heat insulation chamber;
the heat-resistant bearing is arranged on a mounting hole of the bearing of the portal frame in the preheating chamber;
and the two electric heating rollers are arranged in the door-shaped frame and work in cooperation with the electric ring bearing and the heat-resistant bearing.
Preferably, the driving rod is arranged between the two electric heating rollers of the heating roller combination rack positioned at the outlet side;
the driving rod comprises a driving device, and the driving device provides driving rod rotation power;
the driving device is arranged on the wall between the heat insulation chamber and the preheating chamber and is in transmission connection with the driving rod.
Preferably, convection fans are arranged at the top and the bottom of the heating roller combined frame in the case; the convection fan is used for controlling the local temperature in the preheating chamber and is electrically connected with the electric box.
The beneficial effects of the utility model reside in that: the PP material can obtain good toughness after being preheated, eliminates irregular points in the material, softens particle points in the material, and ensures that the produced product has good quality and beautiful appearance.
PP material enters from the inlet and then moves around 4 rollers in an S-shaped surrounding manner, wherein the 4 rollers are respectively provided with electric heating elements, heating elements are also arranged in the general preheating machine, the temperature in the preheating machine chamber is balanced by a fan, and the PP material comes out from the outlet of the preheating machine to complete a preheating process.
Drawings
FIG. 1 shows the overall appearance of the cabinet body of the present invention;
FIG. 2 is a schematic view of a side door of a heat insulation chamber of a cabinet body of the utility model;
FIG. 3 is a schematic view of a preheating chamber side opening door of the cabinet body of the present invention;
in the figure: 1. The device comprises a case, 2, a feeding mechanism, 3, a discharging mechanism, 4, a heat insulation chamber, 5, a hot air blower, 6, a driving device, 7, an electric ring bearing, 8, a preheating chamber, 9, a door-shaped frame, 10, an electric heating roller, 11, a heat-resistant bearing, 12 and a driving rod.
Detailed Description
The technical solution of the present invention is further specifically described below by way of specific embodiments and with reference to the accompanying drawings.
Example 1
As shown in fig. 1, fig. 2 and fig. 3, the PP product on-line four-roller preheating machine comprises: the electric cabinet, the driving rod 12, the feeding mechanism 2, the discharging mechanism 3, the temperature sensor and the cabinet 1 are provided with a preheating chamber 8 on the front side, a heat insulation chamber 4 on the back side, an inlet on the front side and an outlet on the back side;
the inlet is connected with the feeding mechanism 2, and the outlet is connected with the discharging mechanism 3;
the heating roller combination rack is arranged in the preheating chamber 8 of the case 1, and at least two heating roller combination racks are arranged side by side, are fixedly connected with the case 1 and are electrically connected with the electric box;
and the hot air blower 5 is arranged in the heat insulation chamber 4, and an air outlet and an air inlet of the blower penetrate through the preheating chamber 8 and the partition plate of the heat insulation chamber 4 to be communicated to the preheating chamber 8, and are powered by an electric box.
The heat insulation chamber 4 can ensure that the electric ring bearing 7 which is relatively weak in heat resistance can avoid the problem of rapid aging caused by high heating.
The two groups of heating roller combination frames form four electric heating rollers 10 in total, so that the problem that the two electric heating rollers 10 are not completely heated can be solved.
The heating roller combined frame comprises:
the middle section of the door-shaped frame 9 is provided with two bearing mounting holes which are arranged up and down, and the bearing mounting hole positioned on the upper side is closer to the outlet direction than the bearing mounting hole positioned on the lower side in the horizontal position;
the electric ring bearing 7 is arranged on a bearing mounting hole on the binding surface of the door-shaped frame 9 and the heat insulation chamber 4;
the heat-resistant bearing 11 is arranged on a bearing mounting hole of the portal frame 9 in the preheating chamber 8;
and two electric heating rollers 10 are arranged in the door-shaped frame 9 and work in cooperation with the electric ring bearing 7 and the heat-resistant bearing 11.
The number of the temperature sensors is 8, the temperature sensors are respectively arranged at the four corners of the top and the four corners of the bottom of the door-shaped frame 9 and used for detecting the temperature of the corners in the box, and the temperature sensors are all electrically connected with the electric box.
The driving rod 12 is arranged on the door-shaped frame 9 between the two electric heating rollers 10 of the heating roller combination frame positioned at the outlet side, wherein the first end of the driving rod is hinged with the door-shaped frame 9, and the second end of the driving rod passes through the partition board of the preheating chamber 8 and the heat insulation chamber 4;
the driving rod 12 further comprises a driving device 6, and the driving device 6 provides the rotating power of the driving rod 12;
the driving device 6 is arranged on the wall between the heat insulation chamber 4 and the preheating chamber 8, the driving device 6 is in transmission connection with a driving rod 12, and the driving device 6 is powered by an electric box.
Convection fans are arranged at the top and the bottom of the heating roller combined frame in the case 1; the convection fan is used for controlling the local temperature in the preheating chamber 8 and is electrically connected with the electric box.
The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the invention. Thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.
Claims (5)
1. An online four-roller preheating machine for PP products comprises: electric box, actuating lever, feed mechanism, discharge mechanism and temperature sensor, its characterized in that still includes:
the front side of the machine box is provided with a preheating chamber, the back side of the machine box is provided with a heat insulation chamber, the front side of the machine box is provided with an inlet, and the back side of the machine box is provided with an outlet;
the inlet is connected with the feeding mechanism, and the outlet is connected with the discharging mechanism;
the heating roller combination frames are arranged in the preheating chamber of the case, and at least two heating roller combination frames are arranged side by side, fixedly connected with the case and electrically connected with the electric box;
the air heater is arranged in the heat insulation chamber, and an air outlet and an air inlet of the air heater penetrate through the partition plates of the preheating chamber and the heat insulation chamber to be communicated to the preheating chamber and are powered by the electric box.
2. The on-line four-roller preheating machine for PP products of claim 1, wherein the number of the temperature sensors is at least four, and the temperature sensors are arranged on the heating roller combination rack at equal intervals and are electrically connected with the electric box.
3. An on-line four-roller preheating machine for PP products according to claim 1, wherein the heating roller combination rack comprises:
the middle section of the door-shaped frame is provided with two bearing mounting holes which are arranged up and down, and the bearing mounting hole positioned on the upper side is closer to the outlet direction than the bearing mounting hole positioned on the lower side in the horizontal position;
the electric ring bearing is arranged on a bearing mounting hole on the binding surface of the door-shaped frame and the heat insulation chamber;
the heat-resistant bearing is arranged on a mounting hole of the bearing of the portal frame in the preheating chamber;
and the two electric heating rollers are arranged in the door-shaped frame and work in cooperation with the electric ring bearing and the heat-resistant bearing.
4. An on-line four-roller preheating machine for PP products according to claim 3, wherein the driving rod is arranged between two electric heating rollers of the heating roller combination rack on the outlet side;
the driving rod comprises a driving device, and the driving device provides driving rod rotation power;
the driving device is arranged on the wall between the heat insulation chamber and the preheating chamber and is in transmission connection with the driving rod.
5. The on-line four-roller preheating machine for PP products of claim 1, wherein the top and the bottom of the heating roller combination rack in the machine box are provided with convection fans; the convection fan is used for controlling the local temperature in the preheating chamber and is electrically connected with the electric box.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202023015407.1U CN214111128U (en) | 2020-12-15 | 2020-12-15 | Online four-roller preheating machine for PP (polypropylene) products |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202023015407.1U CN214111128U (en) | 2020-12-15 | 2020-12-15 | Online four-roller preheating machine for PP (polypropylene) products |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN214111128U true CN214111128U (en) | 2021-09-03 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202023015407.1U Active CN214111128U (en) | 2020-12-15 | 2020-12-15 | Online four-roller preheating machine for PP (polypropylene) products |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN214111128U (en) |
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2020
- 2020-12-15 CN CN202023015407.1U patent/CN214111128U/en active Active
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