CN215656836U

CN215656836U - Three-layer screw extrusion equipment

Info

Publication number: CN215656836U
Application number: CN202122208607.7U
Authority: CN
Inventors: 何艳
Original assignee: Dongguan Huiyang Electronic Technology Co ltd
Current assignee: Dongguan Huiyang Electronic Technology Co ltd
Priority date: 2021-09-13
Filing date: 2021-09-13
Publication date: 2022-01-28
Anticipated expiration: 2031-09-13

Abstract

The utility model relates to the technical field of extruders and discloses a three-layer screw extrusion device. The device comprises a device main body, wherein a feed inlet is arranged on the device main body, and a dust removal device is connected to the feed inlet; dust collecting equipment includes the casing, a casing tip is equipped with the first discharge gate that is connected with the feed inlet, another tip of casing is equipped with the pan feeding mouth, the pan feeding mouth is located the casing upper end, the inside screen cloth that is equipped with of casing, the screen cloth is located pan feeding mouth below and the tip of screen cloth towards first discharge gate forms the screen cloth discharge end, the screen cloth discharge end is located first discharge gate top, the screen cloth sets up downwards towards first discharge gate end slope from pan feeding mouth end, it is equipped with two spouts to correspond on the inside both sides wall of casing, the screen cloth is located length direction's both sides tip stretches into in the spout and can carry out sharp reciprocating motion in the spout. Through the structure, the purpose of removing dust from the waste plastic before the waste plastic enters the three-layer screw extrusion equipment body for processing can be achieved, so that the quality of the recycled plastic is improved.

Description

Three-layer screw extrusion equipment

Technical Field

The utility model relates to the technical field of extruders, in particular to a three-layer screw extrusion device.

Background

The three-layer screw extrusion equipment can be used for recycling waste plastics, dust can be brought into the three-layer screw extrusion equipment by the dust-containing waste plastics in the process of entering the feed inlet, the quality of regenerated plastics is influenced, iron removal equipment is additionally arranged at the feed inlet of most of the three-layer screw extrusion equipment at present, and although the equipment can prolong the service life of the three-layer screw extrusion equipment, the defect that dust cannot be removed exists.

SUMMERY OF THE UTILITY MODEL

Aiming at the defect that three-layer screw extrusion equipment cannot remove dust in the prior art, the utility model provides the three-layer screw extrusion equipment, which can achieve the purpose of removing dust before waste plastics enter an inner cavity of a machine body of the three-layer screw extrusion equipment.

In order to solve the technical problem, the utility model is solved by the following technical scheme:

a three-layer screw extrusion device comprises a device main body, wherein a feed inlet is arranged on the device main body, and a dust removal device is connected to the feed inlet; dust collecting equipment includes the casing, a casing tip is equipped with the first discharge gate that is connected with the feed inlet, another tip of casing is equipped with the pan feeding mouth, the pan feeding mouth is located the casing upper end, the inside screen cloth that is equipped with of casing, the screen cloth is located pan feeding mouth below and the tip of screen cloth towards first discharge gate forms the screen cloth discharge end, the screen cloth discharge end is located first discharge gate top, the screen cloth sets up downwards towards first discharge gate end slope from pan feeding mouth end, it is equipped with two spouts to correspond on the inside both sides wall of casing, the screen cloth is located length direction's both sides tip stretches into in the spout and can carry out sharp reciprocating motion in the spout.

Through the arrangement of the utility model, the waste plastic can fall onto the screen mesh from the feeding port of the dust removal mechanism for vibration dust removal, and the dust-removed waste plastic falls into the feeding port of the equipment main body from the first discharging port of the dust removal mechanism and enters the main body of the three-layer screw extruder for reconstruction, so that the dust removal function of the waste plastic before entering the inner cavity of the main body of the three-layer screw extruder for processing is realized, and the influence of dust on the quality of the finished product of the recycled plastic is avoided.

Preferably, a driving mechanism for driving the screen to move is further arranged in the shell, the driving mechanism comprises a connecting rod chute mechanism, the connecting rod chute mechanism comprises a plurality of coaxially arranged rotating shafts, a connecting piece is connected between every two adjacent rotating shafts, the connecting piece comprises two connecting pieces which are arranged in parallel, the rotating shafts are connected with the outer end faces of the two connecting pieces, a connecting shaft is connected between the inner end faces of the two connecting pieces, and connecting points of the connecting shaft and the rotating shafts and the connecting pieces are respectively located at two end parts of the connecting pieces in the length direction; the shell is provided with a first motor for driving the rotating shaft, the connecting shaft is hinged with a connecting rod, and the connecting rod sliding chute mechanism also comprises a connecting rod sliding chute mechanism; the two end parts are respectively inserted into the two sliding grooves and can slide in the sliding grooves, one end of the connecting rod is hinged to the connecting shaft, the other end of the connecting rod is hinged to the end face, close to the rotating shaft, of the sliding plate, and the sliding plate can push the screen to move along the sliding grooves under the driving of the first motor.

According to the utility model, through the arrangement of the connecting rod and chute mechanism, the motor drives the crank and connecting rod mechanism to move, and then the sliding plate hinged with the crank and connecting rod mechanism pushes the screen to move in the chute, so that the screen moves towards the direction close to the first discharge hole, and the screen is simple, convenient and fast.

Preferably, rubber pads are arranged on the end face of the sliding plate close to the first discharge hole and the end face of the screen close to the sliding plate.

According to the utility model, the rubber pad is arranged, and the buffer layer is additionally arranged on the end face of the sliding plate, which is in contact with the screen, so that the service life of the equipment is prolonged, and the noise generated in the production process of the equipment is reduced.

Preferably, the driving mechanism further comprises a first spring mounting plate arranged on the screen, a second spring mounting plate matched with the first spring mounting plate is arranged on the inner side wall of the shell, spring upright columns are arranged on the first spring mounting plate and the second spring mounting plate, and a first reset spring used for pushing the screen to move towards one end of the connecting rod sliding groove mechanism is sleeved on the two spring upright columns.

According to the utility model, the first return spring is arranged, so that the screen generates vibration under the interaction of the first return spring and the connecting rod sliding groove mechanism, thereby realizing the purpose of vibration dust removal of the screen, and the spring is detachable, so that the spring is convenient to replace.

Preferably, the edge that just is located the screen cloth on the screen cloth up end is equipped with the bounding wall, and the bounding wall is close to first discharge gate end and is equipped with the opening that is used for constituting the ejection of compact of screen cloth discharge gate end.

According to the utility model, through the arrangement of the baffle, the waste plastics are prevented from falling off the screen after falling into the screen from the feeding port, so that the dust removal efficiency of the equipment is increased.

Preferably, a connecting plate is fixed on the side wall of the shell, a second return spring matched with the first return spring is arranged between the connecting plate and the end face, facing the sliding plate, of the enclosing plate, and the second return spring can be used for pushing the screen to move towards the end of the first return spring.

According to the utility model, through the arrangement of the second return spring, the first return spring is matched with the second return spring, so that the vibration frequency of the screen is increased, and the efficiency of the dust removing equipment is increased.

Preferably, a dust box with an opening at the upper end and positioned below the screen is arranged in the shell, a shell opening for drawing out the dust box is arranged on the side wall of the shell, and a handle for drawing out the dust box from the shell is arranged on the end face of the dust box positioned outside the shell.

In the utility model, through the arrangement of the dust collecting groove, the dust filtered by the screen mesh falls into the dust collecting box which can be drawn out of the inner cavity of the shell, thereby realizing the purpose of rapidly processing the dust and being simple and practical.

Preferably, the first discharge port is connected with the feed inlet through a flange, the lower end face of the shell is further provided with a support column, and the lower end face of the support column is connected with the upper end face of the equipment main body through a bolt.

According to the utility model, the dust removing equipment can be detached from the equipment main body by setting the connection mode between the dust removing equipment and the equipment main body, so that the practicability of the dust removing equipment is improved.

Drawings

FIG. 1 is a sectional view of a three-layer screw extrusion apparatus in example 1.

FIG. 2 is a schematic view of a dust removing apparatus in the three-layer screw extrusion apparatus in example 1.

FIG. 3 is a sectional view of a dust removing apparatus in the triple-layer screw extrusion apparatus in example 1.

Fig. 4 is an exploded schematic view of the driving mechanism in embodiment 1.

FIG. 5 is a sectional view of a three-layer screw extrusion apparatus in example 1.

The names of the parts indicated by the numerical references in the drawings are as follows:

110. an apparatus main body; 111. a feed inlet; 112. a body; 113. a screw; 114. a second motor; 115. a gear; 116. a second discharge port; 117. a frame; 120. a housing; 121. a feeding port; 122. a first discharge port; 123. a support pillar; 131. screening a screen; 132. a chute; 133. a dust collection box; 210. a handle; 220. a first motor; 311. connecting sheets; 312. a connecting shaft; 313. a rotating shaft; 314. a connecting rod; 315. a sliding plate; 316. a rubber pad; 321. a connecting plate; 322. a second return spring; 331. a second spring mounting plate; 332. a spring post; 333. a first return spring; 410. a first spring mounting plate; 420. and (4) enclosing plates.

Detailed Description

For a further understanding of the utility model, reference should be made to the following detailed description taken in conjunction with the accompanying drawings and examples. It is to be understood that the examples are illustrative of the utility model and not limiting.

Example 1

As shown in fig. 1, the embodiment provides a three-layer screw extrusion device, which includes a device main body 110, a feeding port 111 is arranged on the device main body 110, and a dust removing device is connected to the feeding port 111; the dust removing equipment comprises a shell 120, one end of the shell 120 is provided with a first discharge hole 122 connected with a feed port 111, the other end of the shell 120 is provided with a feed port 121, the feed port 121 is located at the upper end of the shell 120, a screen 131 is arranged inside the shell 120, the screen 131 is located below the feed port 121 and forms a screen discharge end towards the end of the first discharge hole, the screen discharge end is located above the first discharge hole 122, the screen 131 is obliquely and downwards arranged from the end of the feed port 121 towards the end of the first discharge hole 122, two sliding grooves 132 are correspondingly arranged on two side walls inside the shell 120, and the end parts of two sides of the screen 131 located in the length direction extend into the sliding grooves 132 and can perform linear reciprocating motion in the sliding grooves 132.

When the three-layer screw extrusion device in this embodiment is used, waste plastics enter the dust removal device from the material inlet 121 and fall on the obliquely arranged screen 131, the screen 131 makes reciprocating motion in the chute 132 along the direction of the chute 132 under the action of the driving mechanism, so that dust on the waste plastics is shaken off, and the waste plastics gradually move towards the end of the first material outlet 122 due to the self gravity and fall into the material inlet 111 through the first material outlet 122, so as to enter the device main body 110; through the arrangement of the three-layer screw extrusion equipment in the embodiment, the effect of removing dust from the waste plastic before the waste plastic enters the feeding hole 111 is achieved, and the quality of the regenerated plastic processed by the three-layer screw extrusion equipment is improved.

As shown in fig. 2 to 4, in this embodiment, a driving mechanism for driving the screen 131 to move is further disposed inside the casing 120, the driving mechanism includes a connecting rod sliding slot mechanism, the connecting rod sliding slot mechanism includes a plurality of rotating shafts 313 coaxially disposed, a connecting member is connected between adjacent rotating shafts 313, the connecting member includes two connecting sheets 311 disposed in parallel, the rotating shafts 313 are connected to outer end faces of the two connecting sheets 311, a connecting shaft 312 is connected between inner end faces of the two connecting sheets 311, and the connecting shaft 312 and connecting points of the rotating shafts 313 and the connecting sheets 311 are respectively located at two end portions of the connecting sheets 311 in the length direction; the casing 120 is provided with a first motor 220 for driving a rotating shaft 313, the connecting shaft 312 is hinged with a connecting rod 314, the connecting rod-chute mechanism further comprises a sliding plate 315, two ends of which are respectively inserted into the two chutes and can slide in the chutes, one end of the connecting rod 314 is hinged on the connecting shaft 312, the other end of the connecting rod 314 is hinged on the end surface of the sliding plate close to the rotating shaft 313, and the sliding plate 315 can push the screen 131 to move along the chute 132 under the driving of the first motor 220; rubber pads 316 are arranged on the end face of the sliding plate 315 close to the first discharge hole 122 and the end face of the screen 131 close to the sliding plate 315; the driving mechanism further comprises a first spring mounting plate 410 arranged on the screen 131, a second spring mounting plate 331 matched with the first spring mounting plate 410 is arranged on the inner side wall of the shell, spring columns 332 are arranged on the first spring mounting plate 410 and the second spring mounting plate 331 respectively, and a first return spring 333 used for pushing the screen 131 to move towards one end of the connecting rod sliding groove mechanism is sleeved on the two spring columns 332.

When the three-layer screw extrusion device in the embodiment is used, the first motor 220 drives the rotating shaft 313 to rotate, the rotating shaft 313 drives the connecting piece to rotate, the connecting rod 314 hinged on the connecting piece connecting shaft 312 drives the sliding plate 315 to slide in the sliding groove 132 in a reciprocating manner, the sliding plate 315 pushes the screen mesh 131 to slide towards one end far away from the sliding plate 315 in the process of sliding towards one end of the first discharge hole 122, the sliding plate 315 is separated from the screen mesh 131 under the action of the connecting rod sliding groove mechanism, and noise generated when the sliding plate 315 is in contact with the screen mesh 131 is reduced through buffering of the rubber pad 316; the screen 131 extrudes the first return spring 333 in the sliding process, and the first return spring 333 rebounds after being extruded by external force to drive the screen 131 to slide towards one end of the connecting rod chute mechanism; the screen 131 performs irregular reciprocating motion under the action of the driving mechanism, and the waste plastics drop dust through the reciprocating motion of the screen 131, so that the dust of the waste plastics is simply removed.

In this embodiment, a surrounding plate 420 is disposed on the upper end surface of the screen 131 and at the edge of the screen, and an opening for forming the discharge of the screen discharge end is disposed at the end of the surrounding plate 420 close to the first discharge port 122; a connecting plate 321 is fixed on the side wall of the housing 120, a second return spring 322 matched with the first return spring 333 is arranged between the connecting plate 321 and the end face of the enclosing plate 420 facing the sliding plate, and the second return spring 322 can be used for pushing the screen to move towards the end of the first return spring 333.

When the three-layer screw extrusion device in the embodiment is used, the screen 131 extrudes the second return spring 322 in the process of sliding towards one end of the connecting rod chute mechanism, and the second return spring 322 rebounds under the action of external force to drive the screen 131 to slide towards one end of the first return spring 333; through the matching arrangement of the first return spring 333 and the second return spring 322, the reciprocating motion of the screen 131 is enhanced, so that the dust removal efficiency of the dust removal equipment is improved.

In this embodiment, the housing 120 is provided with a dust box 133 having an opening at an upper end and located below the screen, the sidewall of the housing 120 is provided with a housing opening for drawing out the dust box 133, and the end surface of the dust box 133 located outside the housing is provided with a handle 210 for drawing out the dust box 133 from the housing 120.

When the three-layer screw extrusion equipment in the embodiment is used, dust shaken off from the screen 131 falls into the dust collection box 133, the dust collection is realized through the arrangement of the dust collection box 133, and when the dust reaches a certain amount, the dust collection box 133 is pulled out from the dust collection equipment by pulling the handle to be cleaned, so that the process of cleaning the dust becomes quick and convenient.

In this embodiment, the first discharge hole 122 is connected to the feed port 111 through a flange, the lower end surface of the casing 120 is further provided with a support column 123, and the lower end surface of the support column 123 is connected to the upper end surface of the device main body 110 through a bolt.

When the three-layer screw extrusion device in this embodiment is used, the dust removal device is detachably connected to the device main body 110, so that the dust removal device can be conveniently repaired and maintained, and the practicability of the dust removal device is improved.

As shown in fig. 5, in this embodiment, the apparatus main body 110 includes a frame 117, a body 112 is disposed on an upper end surface of the frame 117, the body 112 has an inner cavity, three screws 113 that are mutually matched with each other are disposed in the inner cavity, and the screws 113 are located below the feeding port 111, ends of the three screws 113 are all connected with gears 115, adjacent gears 115 are engaged with each other, a second motor 114 is further disposed on the frame 117, the first motor 114 is located on an outer side of the gear 115 away from the body 112 and connected with one screw 113 of the three screws 113, a second discharging port 116 communicated with the inner cavity is disposed on an end surface of the body 112 away from the gears 115, and the feeding port 111 is located on an upper end surface of the body 112 away from the second discharging port 116.

When the three-layer screw extrusion device in this embodiment is used, the second motor 114 drives the three screws 113 to rotate, the waste plastic from which dust is removed enters the inner cavity of the body 112 from the feeding port 111, and the processed recycled plastic leaves the three-layer screw extrusion device from the second discharging port 116 through extrusion processing by the three screws 113.

When the three-layer screw extrusion device of the embodiment is used, waste plastics fall onto the screen 131 of the dust removal device from the feeding port 121, dust in the waste plastics falls onto the dust collection box 133 from the mesh of the screen 131 through the reciprocating motion of the screen 131, the waste plastics without the dust fall from the screen 131 into the first discharge port 122 through self gravity, then enter the inner cavity of the body 112 through the feeding port 111 connected with the first discharge port 122 to be extruded and processed by the screw 113, and processed recycled plastics leave the three-layer screw extrusion device through the second discharge port 116.

In summary, the above-mentioned embodiments are only preferred embodiments of the present invention, and all equivalent changes and modifications made in the claims of the present invention should be covered by the claims of the present invention.

Claims

1. A three-layer screw extrusion equipment is characterized in that: the dust removal device comprises a device main body (110), wherein a feeding hole (111) is formed in the device main body (110), and a dust removal device is connected to the feeding hole (111); dust collecting equipment includes casing (120), casing (120) one end is equipped with first discharge gate (122) that are connected with feed inlet (111), another tip of casing (120) is equipped with pan feeding mouth (121), pan feeding mouth (121) are located casing (120) upper end, casing (120) inside is equipped with screen cloth (131), screen cloth (131) are located pan feeding mouth (121) below and the tip of screen cloth towards first discharge gate forms the screen cloth discharge end, the screen cloth discharge end is located first discharge gate (122) top, screen cloth (131) are from pan feeding mouth (121) end towards first discharge gate (122) end slope and are set up downwards, casing (120) inside both sides wall is gone up and is correspondingly equipped with two spout (132), screen cloth (131) are located length direction's both sides tip and stretch into spout (132) and can carry out straight reciprocating motion in spout (132).

2. A triple layer screw extrusion apparatus according to claim 1, wherein: the driving mechanism used for driving the screen (131) to do linear reciprocating motion is further arranged inside the shell (120), the driving mechanism comprises a connecting rod chute mechanism, the connecting rod chute mechanism comprises a plurality of coaxially arranged rotating shafts (313), a connecting piece is connected between every two adjacent rotating shafts (313), the connecting piece comprises two connecting pieces (311) which are arranged in parallel, the rotating shafts (313) are connected with the outer side end faces of the two connecting pieces (311), a connecting shaft (312) is connected between the inner side end faces of the two connecting pieces (311), and the connecting shafts (312) and the connecting points of the rotating shafts (313) and the connecting pieces (311) are respectively positioned at the two end portions of the connecting pieces (311) in the length direction; the shell (120) is provided with a first motor (220) used for driving the rotating shaft (313) to rotate, the connecting shaft (312) is hinged with a connecting rod (314), the connecting rod chute mechanism further comprises sliding plates (315) of which two ends are respectively inserted into the two chutes and can slide in the chutes, one end of the connecting rod (314) is hinged on the connecting shaft (312), the other end of the connecting rod (314) is hinged on the end face of the sliding plate (315) close to the rotating shaft (313), and the sliding plate (315) can push the screen (131) to move along the chute (132) under the driving of the first motor (220).

3. A triple layer screw extrusion apparatus according to claim 2, wherein: rubber pads (316) are arranged on the end face of the sliding plate (315) close to the first discharge hole (122) and the end face of the screen (131) close to the sliding plate (315).

4. A triple layer screw extrusion apparatus according to claim 3, wherein: actuating mechanism still includes first spring mounting panel (410) that is equipped with on screen cloth (131), is equipped with on casing (120) inside wall with first spring mounting panel (410) matched with second spring mounting panel (331), all is equipped with spring stand (332) on first spring mounting panel (410) and second spring mounting panel (331), cup joints on two spring stand (332) and is used for promoting screen cloth (131) to first reset spring (333) towards the motion of connecting rod spout mechanism one end.

5. A triple layer screw extrusion apparatus according to claim 4, wherein: and a surrounding plate (420) is arranged on the upper end surface of the screen (131) and at the edge of the screen, and an opening for forming the discharging of the discharging end of the screen is formed in the surrounding plate (420) close to the first discharging port (122).

6. A triple layer screw extrusion apparatus according to claim 5, wherein: and a connecting plate (321) is fixed on the side wall of the shell (120), a second return spring (322) matched with the first return spring (333) is arranged between the connecting plate (321) and the end face of the enclosing plate (420) facing the sliding plate (315), and the second return spring (322) can be used for pushing the screen (131) to move towards the end of the first return spring (333).

7. A triple layer screw extrusion apparatus according to claim 6, wherein: the shell (120) is internally provided with a dust box (133) with an opening at the upper end and positioned below the screen, the side wall of the shell (120) is provided with a shell opening for drawing out the dust box (133), and the end surface of the dust box (133) positioned outside the shell (120) is provided with a handle (210) for drawing out the dust box (133) from the shell (120).

8. A triple layer screw extrusion apparatus according to claim 1, wherein: first discharge gate (122) and feed inlet (111) pass through flange joint, and terminal surface still is equipped with support column (123) under casing (120), and terminal surface and equipment main part (110) up end pass through bolted connection under support column (123).