CN219489071U - Net type screen changer - Google Patents

Abstract

The utility model provides a net type net changer, wherein a feed hole penetrating through the front side and the rear side is formed in the center of a net changer body, net changing grooves communicated with the feed hole are formed in the two sides of the net changer body in a penetrating manner, a filter screen is arranged in the net changing grooves, the net changer body extending out of the two ends of the filter screen is respectively connected with a winding disc and a unwinding disc, the sliding translation mechanism moves under the adjustment of a deviation correcting mechanism, the sliding translation mechanism on the two sides is driven by the deviation correcting mechanism to move so that a plane formed by the filter screen is perpendicular to the axis direction of the feed hole, the sliding translation mechanism is arranged at the bottoms of the winding disc and the unwinding disc, the movement of the sliding translation mechanism is regulated through the deviation correcting mechanism, so that the filter screen does not have an angle deviation phenomenon in the winding and unwinding process, the plane formed by the filter screen is always parallel to the axis of the feed hole, the arrangement minimizes friction damage between the filter screen and the net changer body, and further prolongs the service life of the filter screen.

Description

Net type screen changer

Technical Field

The utility model relates to the technical field of net replacement devices, in particular to a net type net replacement device.

Background

The full-automatic belt type screen changer disclosed by the prior art with the publication number of CN214872575U comprises a screen changer body, a first supporting block, a second supporting block, a third supporting block, a fourth supporting block, a first rolling frame, a second rolling frame and a filter screen, wherein the screen changer body is arranged at the center of the top of the first supporting block, a control console is arranged at the center of the top of the screen changer body, and a feeding hole is formed in the front center of the screen changer body in a penetrating manner; according to the full-automatic belt type screen changer, the first winding frame is matched with the second winding frame and the second driving motor, so that a replaced filter screen can be wound better, and meanwhile, one side of the filter screen can be cleaned effectively and quickly through the transmission belt, the first driving motor, the driving rod, the limiting rod and the bristles.

Although the device realizes quick net replacement, the full-automatic belt type net changer still has obvious defects in the using process: because the condition that the diameter of the winding disc is gradually increased and the diameter of the unwinding disc is gradually reduced can occur in the winding and unwinding processes, the filter screen can deviate by a certain angle relative to the filtering plane in the winding and unwinding processes, the filter screen is enabled to be in friction contact with the screen changer body directly due to the deviation, the screen changer body and the filter screen can be worn and scrapped due to long-term possibility, and the service life of the filter screen is not prolonged.

Disclosure of Invention

The utility model aims to provide a net changer for solving the problems in the background technology.

In order to achieve the above purpose, the present utility model provides the following technical solutions:

the utility model provides a net formula screen changer, includes the screen changer body, the feed port that both sides run through around having been seted up to screen changer body central authorities, screen changer body both sides still run through and have been seted up the screen groove that trades with the feed port intercommunication, be provided with the filter screen in the screen groove that trades, the filter screen both ends extend the screen changer body and are connected with rolling dish and unreel the dish respectively, rolling dish and unreel the dish bottom all are provided with sliding translation mechanism, sliding translation mechanism drives rolling dish and unreel the dish and carries out the removal that is on a parallel with the feed port axis direction, sliding translation mechanism's motion is gone on under the mechanism of rectifying, the sliding translation mechanism motion of rectifying mechanism drive both sides makes the plane perpendicular to feed port axis direction that the filter screen formed.

Preferably, the rotating shaft of the winding disc is fixedly connected to the output shaft of the speed reducer, and the input shaft of the speed reducer is fixedly connected with the winding motor.

Preferably, the sliding translation mechanism comprises a sliding block, the sliding block is movably connected with the winding disc or the unwinding disc through a rotating shaft seat, the sliding block is arranged in a sliding groove formed in the workbench in a sliding mode, the net changer body is fixedly connected with the workbench through a supporting piece, the sliding block is connected with a translation screw rod through a threaded hole formed in the bottom of the sliding block, one end of the translation screw rod is fixedly connected with a driving shaft of a translation motor, and the translation motor is fixedly arranged on one side of the workbench.

Preferably, the deviation rectifying mechanism for adjusting the motion of the sliding translation mechanism comprises an extrusion matching roller, the extrusion matching roller is respectively abutted against a rolling disc or a unreeling disc, the extrusion matching roller is arranged in the plane direction formed by the net changing groove, the extrusion matching roller is movably arranged on a roller frame, pushing blocks are further arranged at the upper end and the lower end of the extrusion matching roller, one ends of the pushing blocks, far away from the extrusion matching roller, of the extrusion matching roller are connected onto an extrusion spring, one ends of the pushing springs, far away from the pushing blocks, of the pushing blocks are connected onto the roller frame, spring piece contact switches are fixedly connected to the side edges of the pushing blocks, a forward moving matching switch and a backward moving matching switch are fixedly arranged on the roller frame at the front side and the rear side of the sliding direction of the pushing blocks, the rolling disc and the unreeling disc are pushed to move forward or backward by increasing or reducing the radius of the extrusion matching roller in the rolling disc in the forward moving or backward moving process, the corresponding forward moving matching switch or backward moving matching roller is contacted in the forward moving process, the translation motor is turned on in the forward moving matching switch or backward matching switch, and the translation motor is correspondingly rotated forward or backward in the forward moving process.

Preferably, the net changer body is positioned at two sides of the net changing groove at one side of the unreeling disc, and heating plates are further arranged at two sides of the net changing groove.

Compared with the prior art, the utility model has the beneficial effects that:

this application sets up sliding translation mechanism in reel and reel bottom, adjusts sliding translation mechanism's removal through rectifying mechanism for in the reel process is being rolled up and unrolled to the filter screen, the plane that the filter screen formed is parallel with the axis of feed port all the time, and this kind of setting makes the friction damage that takes place between filter screen and the screen changer body minimum, and then has prolonged the life of filter screen.

Drawings

FIG. 1 is a perspective view of the overall structure of the present utility model;

FIG. 2 is a schematic elevational view of the overall structure of the present utility model;

FIG. 3 is a schematic top view of the overall structure of the present utility model;

FIG. 4 is a schematic view of the press-fit roller connection structure of the present utility model;

fig. 5 is an enlarged view of the area a of the present utility model.

In the figure: the screen changer comprises a screen changer body 1, a feeding hole 2, a screen changing groove 3, a filter screen 4, a winding disc 5, a unwinding disc 6, a speed reducer 7, a winding motor 8, a sliding block 9, a rotating shaft seat 10, a workbench 11, a sliding groove 12, a supporting piece 13, a threaded hole 14, a translation screw rod 15, a translation motor 16, a pressing fit roller 17, a roller frame 18, a pushing block 19, a pressing spring 20, a spring contact switch 21, a forward movement fit switch 22, a backward movement fit switch 23 and a heating plate 24.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

Referring to fig. 1-5, the present utility model provides a technical solution:

embodiment one:

the utility model provides a net formula screen changer, including screen changer body 1, feed port 2 that both sides run through around having been seted up to screen changer body 1 central authorities, screen changer body 1 both sides have still run through and have been seted up the screen groove 3 that trades of 2 intercommunication in the screen groove 3, be provided with filter screen 4 in the screen groove 3, filter screen 4 both ends extend screen changer body 1 respectively with rolling dish 5 and put reel 6 and be connected, rolling dish 5 and put reel 6 bottom all are provided with sliding translation mechanism, sliding translation mechanism drives rolling dish 5 and put reel 6 and carries out the removal that is on a parallel with feed port 2 axis direction, sliding translation mechanism's motion is gone on under the mechanism adjustment of rectifying, the sliding translation mechanism motion of rectifying mechanism drive both sides makes the plane perpendicular to feed port 2 axis direction that filter screen 4 formed.

In this embodiment, a feed hole 2 formed in a screen changer body 1 is used for passing molten extrusion molding material, in order to intercept impurities in the molten extrusion molding material, a traditional screen changer is used for filtering feed liquid by additionally installing an interception screen, but when the interception screen needs to be replaced, the screen changer needs to be stopped for replacement, the operation delays the production progress, so that a flowing screen type screen changer mechanism in the prior art continuously intercepts and filters the molten extrusion molding material by winding and unwinding a winding disc 5 and an unwinding disc 6, unlike the prior art, sliding translation mechanisms are arranged at the bottoms of the winding disc 5 and the unwinding disc 6, the winding disc 5 and the unwinding disc 6 are driven to stretch and retract along the axial direction parallel to the feed hole 2 by the sliding translation mechanisms, the stretch and retraction is regulated by a deviation correcting mechanism, the plane formed by the filter screen 4 is perpendicular to the axial direction of the feeding hole 2 through the movement of the rolling disc 5 and the unreeling disc 6, friction between the filter screen 4 and the screen changer body 1 is minimum in the state, abrasion between the filter screen 4 and the screen changer body 1 can be effectively reduced, the service life of the filter screen 4 is prolonged, a rotating shaft of the rolling disc 5 is fixedly connected to an output shaft of a speed reducer 7, an input shaft of the speed reducer 7 is fixedly connected with a rolling motor 8, the speed reducer 7 is driven to work through the rolling motor 8, the speed reducer 7 outputs power to drive the rolling disc 5 to rotate, the rolling disc 5 rotates to drive the filter screen 4 to roll, the filter screen 4 rolls to drive the unreeling disc 5 to unreel, and in order to prevent the phenomenon of solidification of internal molten materials caused by the fact that the filter screen 4 enters the screen changer body 3 at lower temperature, heating plates 24 are further arranged on two sides of the screen changer body 1 positioned on one side of the unreeling disc 6, the filter screen 4 to be introduced into the screen changing groove 3 is preheated by the heating plate 24, so that the normal operation of the filtering process is ensured.

Embodiment two:

the sliding translation mechanism comprises a sliding block 9, the sliding block 9 is movably connected with the rolling disc 5 or the unreeling disc 6 through a rotating shaft seat 10, the sliding block 9 is arranged in a sliding groove 12 formed in a workbench 11 in a sliding mode, the net changer body 1 is fixedly connected with the workbench 11 through a supporting piece 13, the sliding block 9 is connected with a translation screw rod 15 through a threaded hole 14 formed in the bottom, one end of the translation screw rod 15 is fixedly connected to a driving shaft of a translation motor 16, the translation motor 16 is fixedly arranged on one side of the workbench 11, in the embodiment, the translation motor 16 serves as a power mechanism of the sliding translation mechanism, the translation screw rod 15 is driven to rotate through rotation of the translation motor 16, the translation screw rod 15 drives the sliding block 9 to translate, and the sliding block 9 translates and drives the rolling disc 5 or the unreeling disc 6 to be mounted on the sliding block.

Embodiment III:

the deviation correcting mechanism for adjusting the motion of the sliding translation mechanism comprises an extrusion matching roller 17, the extrusion matching roller 17 is respectively abutted against the rolling disc 5 or the unreeling disc 6, the extrusion matching roller 17 is arranged in the plane direction formed by the net changing groove 3, the extrusion matching roller 17 is movably arranged on a roller frame 18, pushing blocks 19 are further arranged at the upper end and the lower end of the extrusion matching roller 17, one end of the pushing block 19 far away from the extrusion matching roller 17 is connected with an extrusion spring 20, one end of the extrusion spring 20 far away from the pushing block 19 is connected with the roller frame 18, the side edge of the pushing block 19 is fixedly connected with a shrapnel contact switch 21, a forward movement matching switch 22 and a backward movement matching switch 23 are fixedly arranged on the roller frame 18 at the front side and the back side of the sliding direction of the pushing block 19, the radius of the rolling disc 5 and the unreeling disc 6 is increased or reduced in the rolling process of pushing the extrusion matching roller 17 to move forwards or backwards, the extrusion fit roller 17 contacts with the corresponding forward fit switch 22 or backward fit switch 23 in the forward or backward process, the translation motor 16 rotates correspondingly forward or backward in the forward fit switch 22 or backward fit switch 23 conducting process, the translation motor 16 rotates forward or backward to drive the sliding block 9 to translate and slide forward or backward, in this embodiment, the extrusion fit roller 17 is tightly attached to one side of the rolling disc 5 or the unreeling disc 6 under the action of the extrusion spring 20, the operation not only ensures the stability in the unreeling process, but also can monitor the radius of the rolling disc 5 or the unreeling disc 6 in real time, when the radius of the rolling disc 5 increases, the rolling disc 5 extrudes the extrusion fit roller 17 to move to one side far away from the axis of the rolling disc 5, at the moment, the shrapnel contact switch 21 moves together with the extrusion fit roller 17 to finally contact with the forward fit switch 22, at the moment, the driving circuit of the translation motor 16 is conducted, the translation motor 16 drives the rolling disc 5 to displace towards the side far away from the extrusion matching roller 17, so that the tangent line of the rolling disc 5 coincides with the plane formed by the screen changing groove 3, and similarly, when the diameter of the unreeling disc 6 is reduced, the shrapnel contact switch 21 contacts with the backward matching switch 23, and at the moment, the translation motor 16 drives the unreeling disc 6 to displace towards the side near the extrusion matching roller 17, and finally the plane formed by the filter screen 4 is perpendicular to the axial direction of the feeding hole 2.

Although embodiments of the present utility model have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made therein without departing from the principles and spirit of the utility model, the scope of which is defined in the appended claims and their equivalents.

Claims (5)

1. The utility model provides a net formula screen changer, includes the screen changer body, the feed port that both sides run through around having seted up to screen changer body central authorities, screen changer body both sides still run through and have seted up the screen groove of changing with the feed port intercommunication, be provided with the filter screen in the screen groove of changing, the filter screen both ends extend the screen changer body and are connected its characterized in that with rolling dish and unreel the dish respectively: the bottom of the rolling disc and the bottom of the releasing disc are respectively provided with a sliding translation mechanism, the sliding translation mechanisms drive the rolling disc and the releasing disc to move in parallel with the axis direction of the feeding hole, the movement of the sliding translation mechanisms is regulated by the deviation correcting mechanisms, and the deviation correcting mechanisms drive the sliding translation mechanisms on two sides to move so that the plane formed by the filter screen is perpendicular to the axis direction of the feeding hole.

2. A net changer according to claim 1, characterized in that: the rotating shaft of the winding disc is fixedly connected to the output shaft of the speed reducer, and the input shaft of the speed reducer is fixedly connected with the winding motor.

3. A net changer according to claim 2, characterized in that: the sliding translation mechanism comprises a sliding block, the sliding block is movably connected with a winding disc or a unwinding disc through a rotating shaft seat, the sliding block is arranged in a sliding groove formed in a workbench in a sliding mode, the net changer body is fixedly connected with the workbench through a supporting piece, the sliding block is connected with a translation screw rod through a threaded hole formed in the bottom of the sliding block, one end of the translation screw rod is fixedly connected to a driving shaft of a translation motor, and the translation motor is fixedly mounted on one side of the workbench.

4. A net changer according to claim 3, characterized in that: the deviation rectifying mechanism for adjusting the motion of the sliding translation mechanism comprises an extrusion matching roller, the extrusion matching roller is respectively abutted against a rolling disc or a unreeling disc, the extrusion matching roller is arranged in the plane direction formed by a net changing groove, the extrusion matching roller is movably arranged on a roller frame, pushing blocks are further arranged at the upper end and the lower end of the extrusion matching roller, one ends of the pushing blocks, far away from the extrusion matching roller, of the extrusion matching roller are connected onto an extrusion spring, one ends, far away from the pushing blocks, of the extrusion spring are connected onto the roller frame, elastic sheet contact switches are fixedly connected to the side edges of the pushing blocks, a forward moving matching switch and a backward moving matching switch are fixedly arranged on the roller frame on the front side and the back side of the sliding direction of the pushing blocks, the rolling disc and the unreeling disc are pushed to move forwards or backwards by increasing or reducing the radius in the rolling process, the extrusion matching roller is contacted with the corresponding forward moving matching switch or backward moving matching switch in the forward moving process, the translation motor is correspondingly turned on in the forward moving matching switch or backward moving matching switch process, and the forward translation motor is driven to move forwards or reversely.

5. A net changer according to any one of claims 1-4, characterized in that: the net changer body is located at one side of the unreeling disc, and heating plates are further arranged at two sides of the net changing groove.