A polyurethane coated roller production device

Abstract

The present application discloses a polyurethane rubber-coated roller production device, including a mounting seat and a mold unit, the mounting seat having a receiving channel for receiving the mold unit, the receiving channel having an arc-shaped support surface, a plurality of arc-shaped clamping units in the receiving channel, each arc-shaped clamping unit and the support surface being connected by a plurality of support springs; the mold unit comprises a barrel unit and two end units, the barrel unit is cylindrical and has a strip-shaped gap running through the entire length direction of the barrel unit, the barrel unit also has a through hole, the end units can be installed at both ends of the barrel unit, and the end units have a through hole that can be passed by the core shaft of the roller core. The device of the present application, under the action of the arc-shaped clamping unit and the support spring, the inner cavity of the barrel unit is closed, and at the same time, the end unit and the barrel unit form a stable installation, so that the roller core can be stably installed inside the barrel unit, and demoulding is facilitated by the demoulding unit.

Description

Technical Field

[0001] The invention relates to the technical field of rubber-coated roller processing, and more specifically to a polyurethane rubber-coated roller production device. Background Art

[0002] Rubber-coated rollers are roll-shaped products made of metal or other materials as the core and rubber covered by vulcanization. According to their uses, they can be divided into papermaking rubber rollers, printing and dyeing rubber rollers, printing rubber rollers, metallurgical rubber rollers and mimeograph rubber rollers, etc. Polyurethane rubber-coated rollers are widely used in the printing industry, textile industry, etc. due to their high strength, high wear resistance and high oil resistance.

[0003] The production of polyurethane rubber-coated rollers is to coat the polyurethane glue on the roller core to form a uniform glue layer, which usually requires the use of mold casting and demoulding after the polyurethane is cured and formed. In the existing polyurethane rubber roller production equipment, the rubber roller casting mold has a poor fixing effect on the roller core, and the position of the roller core and the casting mold is easily offset, resulting in poor casting effect, leading to unstable product quality, and it is difficult to achieve complete closure of the casting mold after closing. Because there are gaps in the casting mold, the polyurethane glue is easy to overflow from the gap, which is easy to cause material waste, affect the casting effect, and lead to low product quality. In addition, it is not convenient to demould, the demoulding efficiency is low, delaying the later molding, resulting in low production efficiency. Summary of the invention

[0004] The invention aims to overcome the defects of the prior art and provides a polyurethane rubber-coated roller production device.

[0005] In order to achieve the above-mentioned purpose, the present invention provides the following technical solutions: a rubber-coated roller production device, comprising a mounting seat and a mold unit, the mounting seat having a accommodating channel for accommodating the mold unit, the accommodating channel having an arc-shaped supporting surface, the accommodating channel having a plurality of arc-shaped clamping units, each arc-shaped clamping unit and the supporting surface being connected by a plurality of supporting springs; the mold unit comprises a barrel unit and two end units, the barrel unit is cylindrical and has a strip-shaped gap running through the entire length direction of the barrel unit, the barrel unit also has a through hole portion, the end units can be installed at both ends of the barrel unit, and the end units have a through hole that can be passed through by the core shaft of the roller core.

[0006] Furthermore, the plurality of support springs at each arc-shaped clamping unit are distributed at equal intervals along the arc-shaped clamping unit.

[0007] Thus, the multiple supporting springs provide stable support for the arc-shaped clamping unit.

[0008] Furthermore, the barrel unit has a strip protrusion extending along the length direction of the barrel unit, and the strip protrusion is fixedly connected to a strip protrusion plate extending along the length direction of the barrel unit. The strip protrusion has a semi-cylindrical hole connecting the upper surface of the strip protrusion and the internal space of the barrel unit, and the two plate cylindrical holes are spliced ​​into a through hole portion; the strip gap extends from the upper surface of the strip protrusion to the internal space of the barrel unit.

[0009] Thus, the barrel unit can be slightly opened through the strip-shaped gap to facilitate demoulding.

[0010] Furthermore, the strip-shaped gap extends from the upper surface of the strip-shaped protrusion to the inner space of the barrel unit in the radial direction of the barrel unit.

[0011] Furthermore, there are a plurality of through-hole portions.

[0012] Therefore, the polyurethane material can be injected through the through-hole portion, and there are multiple through-hole portions. During casting, other through-hole portions can be used to discharge gas.

[0013] Furthermore, the end unit includes an end circular plate with the perforation and a circular support plate connected to the end circular plate, the circumferential surface of the support plate has a circular anti-slip pad that can abut against the inner wall of the barrel unit; the end circular plate has a plurality of threaded holes, and the threaded holes are equipped with locking bolts that can abut against the roller core; the end circular plate also has a plurality of radial slide rails, and the radial slide rails have a slider, and a positioning spring is connected between the slider and the support plate.

[0014] Therefore, through the effect of the anti-skid pad, the support plate can form a good support and stable installation with the barrel unit, and the roller core is tightened by the tightening bolts, so that the roller core can be installed in the barrel unit.

[0015] Furthermore, the plurality of radial slide rails are distributed in a circular shape with equal intervals.

[0016] Furthermore, it also includes a demolding unit, which includes two inverted U-shaped frames, two pulling plate units and two driving units, the inverted U-shaped frame is fixed to the top of the mounting seat, and the inverted U-shaped frame has a horizontal slide rail, the pulling plate unit includes a sliding plate and a plurality of abutment plates fixedly connected to the sliding plate, the abutment plate can abut and pull the strip convex plate, the sliding plate has two strip slide grooves that cooperate with the horizontal slide rails and a plurality of rope threading holes, the driving unit includes an electric winding device, a fixing ring fixed to the mounting seat and a plurality of fixed pulleys installed at the mounting seat, the end of the pull rope at the electric winding device is fixed to the fixing ring, and the pull rope passes through the plurality of rope threading holes and the plurality of fixed pulleys alternately.

[0017] Thus, the barrel unit is slightly opened by the demoulding unit to facilitate demoulding, and the end unit is easy to remove.

[0018] Furthermore, the plurality of abutment plates on the same sliding plate are distributed at equal intervals.

[0019] Therefore, the multiple abutment plates apply force evenly to the entire length direction of the strip-shaped convex plate.

[0020] Furthermore, the fixing ring is a semicircular ring.

[0021] Furthermore, the number of fixed pulleys provided by each driving unit is one less than the number of rope threading holes provided by each sliding plate; and the number of fixed pulleys provided by each driving unit is greater than or equal to five.

[0022] Furthermore, the surface of the rope threading hole that contacts the pull rope is in an arc shape; and the sliding plate has a plurality of semi-cylindrical notches.

[0023] The surface of the rope threading hole that contacts the pull rope is in an arc shape, thereby reducing damage to the pull rope; the semi-cylindrical notch portion is arranged in conjunction with the through hole portion to avoid blocking the through hole portion.

[0024] Furthermore, the number of radial slide rails provided at each end circular plate is greater than or equal to 6; the number of threaded holes provided at each end circular plate is greater than or equal to 6.

[0025] Thus, a plurality of tightening bolts tighten the roller core, and the roller core is installed in the cylinder unit more stably.

[0026] Furthermore, the arc-shaped clamping unit includes an arc-shaped clamping plate for clamping the barrel unit and two arc-shaped reinforcing plates located on both sides of the arc-shaped clamping plate.

[0027] Therefore, under the action of multiple supporting springs, the arc-shaped clamping unit stably clamps the barrel unit, and the two strip-shaped protrusions abut against each other, so that the inner cavity of the barrel unit is closed.

[0028] Furthermore, the mounting seat has a plurality of through-grooves communicating with the accommodating channel, and the mounting seat also has a plurality of mounting through holes communicating with the through-grooves.

[0029] This facilitates the installation and fixation of the production device of the present application.

[0030] Beneficial effects:

[0031] 1. In the device of the present application, under the action of the arc clamping unit and the supporting spring, the two strip-shaped protrusions are in contact with each other, and at the same time, the end unit and the barrel unit form a stable installation, so that the inner cavity of the barrel unit is closed, and the roller core can be stably installed inside the barrel unit.

[0032] 2. The demoulding unit provided in the present application pulls the pull rope, so that the multiple abutment plates pull the two strip-shaped convex plates away from each other, so that the barrel unit is slightly pried apart, making it easier to remove the end unit, and the polyurethane coating inside the barrel unit is also separated from the inner wall of the barrel unit, making it easier to remove the rubber roller from the end of the barrel unit. BRIEF DESCRIPTION OF THE DRAWINGS

[0033] Figure 1 It is a schematic diagram of the separation of the tightening bolt, the end unit and the barrel unit;

[0034] Figure 2 for Figure 1 A magnified schematic diagram of the middle A area;

[0035] Figure 3 Schematic diagram of the installed end unit;

[0036] Figure 4 for Figure 3 A magnified schematic diagram of the middle B area;

[0037] Figure 5 Schematic diagram for installing the tightening bolts;

[0038] Figure 6 for Figure 5 Enlarged schematic diagram of area C in the middle.

[0039] Explanation of the reference numerals: 1 mounting seat; 11 supporting spring; 12 through groove portion; 21 arc-shaped clamping plate; 22 arc-shaped reinforcing plate; 3 barrel unit; 31 strip-shaped gap; 321 through hole portion; 32 strip-shaped protrusion; 33 strip-shaped protrusion plate; 4 end unit; 41 end circular plate; 411 threaded hole; 42 supporting plate; 43 tightening bolt; 44 radial slide rail; 45 slider; 46 positioning spring; 5 spindle; 6 inverted U-shaped frame; 61 horizontal slide rail; 71 sliding plate; 711 rope threading hole; 712 notch portion; 72 abutment plate; 81 electric winding device; 82 fixing ring; 83 fixed pulley; 84 pull rope. DETAILED DESCRIPTION

[0040] Embodiments of the present invention are described in detail below, examples of which are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are intended to be used to explain the present invention, and should not be construed as limiting the present invention.

[0041] The present invention provides Figure 1-6A polyurethane rubber-coated roller production device shown includes a mounting seat 1 and a mold unit, wherein the mounting seat 1 has a receiving channel for receiving the mold unit, the receiving channel has an arc-shaped supporting surface, and a plurality of arc-shaped clamping units are arranged in the receiving channel, and each arc-shaped clamping unit is connected to the supporting surface by a plurality of supporting springs 11; the mold unit includes a barrel unit 3 and two end units 4, the barrel unit 3 is cylindrical and has a strip-shaped gap 31 running through the entire length direction of the barrel unit 3, the barrel unit 3 also has a through hole portion 321, the end unit 4 can be installed at both ends of the barrel unit 3, and the end unit 4 has a through hole that can be passed by the core shaft 5 of the roller core.

[0042] The barrel unit 3 has a strip-shaped protrusion 32 extending along the length direction of the barrel unit, and the strip-shaped protrusion 32 is fixedly connected with a strip-shaped protrusion plate 33 extending along the length direction of the barrel unit. The strip-shaped protrusion 32 has a semi-cylindrical hole connecting the upper surface of the strip-shaped protrusion 32 and the inner space of the barrel unit 3, and the two plate cylindrical holes are spliced ​​into a through hole portion 321; the strip-shaped gap 31 extends from the upper surface of the strip-shaped protrusion 32 to the inner space of the barrel unit 3; the through hole portion 321 has a plurality of parts; the end unit 4 includes It includes an end circular plate 41 with a perforation and an annular support plate 42 connected to the end circular plate 41, the circumferential surface of the support plate 42 has an annular anti-slip pad that can abut against the inner wall of the barrel unit 3; the end circular plate 41 has a plurality of threaded holes 411, and the threaded holes 411 are equipped with locking bolts 43 that can abut against the roller core; the end circular plate 41 also has a plurality of radial slide rails 44, and the radial slide rails 44 have sliders 45, and a positioning spring 46 is connected between the slider 45 and the support plate 42.

[0043] The polyurethane rubber coated roller production device also includes a demoulding unit, which includes two inverted U-shaped frames 6, two pull plate units and two drive units. The inverted U-shaped frame 6 is fixed to the top of the mounting seat 1, and the inverted U-shaped frame 6 has a horizontal slide rail 61. The pull plate unit includes a sliding plate 71 and a plurality of abutment plates 72 fixedly connected to the sliding plate 71, and the abutment plate 72 can abut and pull the strip convex plate 33. The sliding plate 71 has two strip slide grooves that cooperate with the horizontal slide rail and a plurality of rope threading holes 711. The drive unit includes an electric winding device 81, a device fixed to A fixing ring 82 at the mounting seat 1 and a plurality of fixed pulleys 83 installed at the mounting seat 1, an end of the pull rope 84 at the electric winding device 81 is fixed at the fixing ring 82, and the pull rope 84 passes through a plurality of rope threading holes 711 and a plurality of fixed pulleys 83 alternately; the number of fixed pulleys 83 of each driving unit is one less than the number of rope threading holes 711 of each sliding plate 71; the number of fixed pulleys 83 of each driving unit is greater than or equal to 5; the surface of the rope threading hole 711 abutting against the pull rope 84 is in an arc shape; the sliding plate 71 has a plurality of semi-cylindrical notches 712.

[0044] The number of radial slide rails 44 at each end circular plate 41 is greater than or equal to 6; the number of threaded holes 411 is greater than or equal to 6; the arc-shaped clamping unit includes an arc-shaped clamping plate 21 for clamping the barrel unit 3 and two arc-shaped reinforcing plates 22 located on both sides of the arc-shaped clamping plate 21; the mounting seat 1 has a plurality of through groove portions 12 connected to the accommodating channel, and the mounting seat 1 also has a plurality of mounting through holes 13 connected to the through groove portions.

[0045] Working principle: In the device of the present application, under the action of the arc clamping unit and the supporting spring, the two strip-shaped protrusions are mutually abutted, and at the same time, the end unit and the barrel unit form a stable installation, so that the inner cavity of the barrel unit is closed, and the roller core can be stably installed inside the barrel unit. The demoulding unit is convenient for demoulding, and by pulling the pull rope, the multiple abutment plates pull the two strip-shaped protrusions away from each other, so that the barrel unit is slightly pried apart, so that the removal of the end unit is more convenient, and the polyurethane coating inside the barrel unit is also separated from the inner wall of the barrel unit, so that it is also more convenient to remove the rubber roller from the end of the barrel unit.

[0046] Specifically, the support plate of the end unit is wide and has an anti-skid pad, so it can form a good support and stable installation with the barrel unit. The end circular plate allows the core shaft to pass through, and a plurality of tightening bolts can be used to tighten the roller core, so that the roller core can be stably installed in the center position of the barrel unit, thereby achieving more accurate positioning of the roller core. And when the mold unit is used for casting and molding, the electric winding device does not work, so that the pull rope is in a relaxed state. Before casting, a release agent is applied to the inner wall of the barrel unit to achieve better subsequent demolding. Under the action of the arc clamping unit and a plurality of support springs, the two strip-shaped protrusions are in contact with each other, so that the inner cavity of the barrel unit is closed, and the polyurethane material can be injected through the through-hole portion at this time, and the through-hole portion has a plurality of through-hole portions. During casting, other through-hole portions can be used to discharge gas.

[0047] After pouring, keep warm for a period of time. When demoulding is required during molding, the two electric winding devices of the demoulding unit can be used to drive the pull rope. Since the pull rope passes through multiple rope holes, the force applied by the pull rope to the sliding plates at the multiple rope holes is equal, so that the pulling force applied by multiple abutment plates to the strip convex plates is equal, so that during the demoulding process, the force applied to each point of the mold is uniform. Thus, the two strip convex plates are pulled apart in the direction away from each other (the pulling amplitude does not need to be large, just a little gap is needed), and the force applied to the entire length direction of the strip convex plate is relatively uniform. Therefore, since the barrel unit is slightly pulled apart, the removal of the end unit is more convenient, and the polyurethane coating inside the barrel unit is also separated from the inner wall of the barrel unit, so it is also more convenient to remove the rubber roller from the end of the barrel unit. The rubber roller after removal needs to be processed to obtain better roundness.

[0048] Although the present invention has been illustrated and described with respect to the preferred embodiments, it will be appreciated by those skilled in the art that various changes and modifications may be made to the present invention without departing from the scope of the present invention as defined by the claims.

Claims

1. A polyurethane coated roller production device, characterized in that: The invention comprises a mounting seat and a mold unit, wherein the mounting seat has a receiving channel for receiving the mold unit, the receiving channel has a curved support surface, a plurality of arc-shaped clamping units are arranged in the receiving channel, and each arc-shaped clamping unit is connected to the support surface through a plurality of supporting springs; the mold unit comprises a barrel unit and two end units, the barrel unit is cylindrical and has a strip-shaped gap running through the entire length direction of the barrel unit, the barrel unit also has a through hole, the end units can be installed at both ends of the barrel unit, and the The end unit has a through hole that can be passed by the core shaft of the roller core; the barrel unit has a strip-shaped protrusion extending along the length direction of the barrel unit, the strip-shaped protrusion is fixedly connected to a strip-shaped protrusion plate extending along the length direction of the barrel unit, the strip-shaped protrusion has a semi-cylindrical hole connecting the upper surface of the strip-shaped protrusion and the internal space of the barrel unit, and the two plate cylindrical holes are spliced ​​into a through hole; the strip-shaped gap extends from the upper surface of the strip-shaped protrusion to the internal space of the barrel unit; the end unit includes an end circular plate with the through hole, a semi-cylindrical hole connecting the upper surface of the strip-shaped protrusion and the internal space of the barrel unit, and a semi-cylindrical hole connecting the upper surface of the strip-shaped protrusion and the internal space of the barrel unit. The cylindrical support plate is connected to the roller body unit, and the circumferential surface of the support plate has a cylindrical anti-skid pad that can abut against the inner wall of the barrel unit; the end circular plate has a plurality of threaded holes, and the threaded holes are equipped with tightening bolts that can abut against the roller core; the end circular plate is also provided with a plurality of radial slide rails, and the radial slide rails are provided with sliders, and positioning springs are connected between the sliders and the support plate; the production device also includes a demoulding unit, and the demoulding unit includes two inverted U-shaped frames, two pulling plate units and two driving units, and the inverted U-shaped frame is fixed to the top of the mounting seat end, and the inverted U-shaped frame has a horizontal slide rail, the pulling plate unit includes a sliding plate and a plurality of abutting plates fixedly connected to the sliding plate, the abutting plate can abut and pull the strip convex plate, the sliding plate has two strip sliding grooves matching the horizontal slide rail and a plurality of rope threading holes, the driving unit includes an electric winding device, a fixing ring fixed at the mounting seat, and a plurality of fixed pulleys installed at the mounting seat, the end of the pull rope at the electric winding device is fixed at the fixing ring, and the pull rope passes through the plurality of rope threading holes and the plurality of fixed pulleys alternately.

2. The polyurethane coated roller production device according to claim 1, characterized in that: The through-hole portion has a plurality of portions.

3. The polyurethane coated roller production device according to claim 1, characterized in that: The number of fixed pulleys of each driving unit is one less than the number of rope threading holes of each sliding plate; the number of fixed pulleys of each driving unit is greater than or equal to five.

4. The polyurethane coated roller production device according to claim 1, characterized in that: The surface of the rope threading hole that contacts the pull rope is in an arc shape; and the sliding plate is provided with a plurality of semi-cylindrical notches.

5. The polyurethane coated roller production device according to claim 1, characterized in that: The number of radial slide rails on each end circular plate is greater than or equal to 6; the number of threaded holes is greater than or equal to 6.

6. The polyurethane coated roller production device according to claim 1, characterized in that: The arc-shaped clamping unit comprises an arc-shaped clamping plate for clamping the barrel unit and two arc-shaped reinforcing plates located on both sides of the arc-shaped clamping plate.

7. The polyurethane coated roller production device according to claim 1, characterized in that: The mounting seat is provided with a plurality of through slots communicating with the accommodating channel, and the mounting seat is also provided with a plurality of mounting through holes communicating with the through slots.

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