CN209736555U

CN209736555U - Double-arm continuous sand mixer

Info

Publication number: CN209736555U
Application number: CN201920556741.6U
Authority: CN
Inventors: 徐世娜; 李明; 桑飞星; 祁冬冬; 李红功
Original assignee: Qingdao Shuangxing Intelligent Foundry Equipment Co Ltd
Current assignee: DOUBLE STAR LUOHE ZHONGYUAN MACHINERY Co.,Ltd.
Priority date: 2019-04-22
Filing date: 2019-04-22
Publication date: 2019-12-06
Anticipated expiration: 2029-04-22

Abstract

The utility model provides a both arms continuous type roller mill belongs to self-hardening sand roller mill technical field, and it carries new sand and used sand respectively through two sets of transport routes, has avoided carrying the problem that leads to producing the sand waste because of new, used sand conversion. The sand mixer comprises a spiral conveying device arranged on a large arm, a sand mixing device arranged on a small arm, a feeding device and a transition hopper; the feeding device comprises a feeding hopper and a control assembly, the feeding hopper comprises a feeding channel and two discharging channels, and the control assembly is used for controlling the feeding channel to be respectively and independently communicated with the two discharging channels; the spiral conveying device comprises a first spiral conveying device and a second spiral conveying device which are used for conveying new sand materials and old sand materials respectively, inlets of the first spiral conveying device and the second spiral conveying device are connected to two discharging channels of the feeding hopper respectively, and outlets of the first spiral conveying device and the second spiral conveying device are connected to the top of the transition hopper; the sand mixing device is connected to the bottom of the transition hopper.

Description

Double-arm continuous sand mixer

Technical Field

The utility model belongs to the technical field of self-hardening sand mulling equipment, especially, relate to a both arms continuous type roller mill.

background

Among the self-hardening sand processing system, two arm continuous type roller mills are the most common single sand two roller mills of using at present, it includes the base, rotate through first gyration subassembly on the base and connect a big arm, big arm front end rotates through second gyration subassembly and connects a forearm, be provided with the screw conveyor who is used for carrying the dry sand on the big arm, be provided with the mulling device on the forearm, screw conveyor on the big arm conveys the dry sand to the feed inlet of the mulling device on the forearm, the dry sand stirs the mixture at the mulling device with the liquid curing agent of adding, resin together. According to different use requirements, when the self-hardening sand is prepared, a new sand material is sometimes needed to be used, an old sand material is sometimes needed to be used, and a plurality of times of conversion use of the new sand material and the old sand material are sometimes needed in one-time sand mixing construction.

SUMMERY OF THE UTILITY MODEL

The utility model discloses there is the technical problem who brings the sand waste because of new, the old sand conversion carries the ration inaccurate to above-mentioned current both arms continuous type roller mill, provides a both arms continuous type roller mill, and it carries new sand and old sand respectively through two sets of delivery paths, has avoided carrying the problem that leads to producing the sand waste because of new, old sand conversion, has reduced the wasting of resources, has improved production efficiency, has reduced manufacturing cost.

In order to achieve the above object, the utility model discloses a technical scheme be:

The double-arm continuous sand mixer comprises a spiral conveying device arranged on a large arm, a sand mixing device arranged on a small arm, a feeding device used for filling sand materials into the spiral conveying device, and a transition hopper connected between the spiral conveying device and the sand mixing device; the feeding device comprises a feeding hopper, the feeding hopper comprises a feeding channel arranged at the top and two discharging channels arranged at the bottom, and the feeding device also comprises a control assembly used for controlling the feeding channel and the two discharging channels to be respectively and independently communicated; the spiral conveying device comprises a first spiral conveying device for conveying new sand materials and a second spiral conveying device for conveying old sand materials, an inlet of the first spiral conveying device and an inlet of the second spiral conveying device are respectively communicated with two discharging channels of the feed hopper, and an outlet of the first spiral conveying device and an outlet of the second spiral conveying device are connected to the top of the transition hopper; the sand mulling device is provided with a sand inlet, and the sand inlet is connected to the bottom of the transition hopper.

Preferably, the feeding channel and the two discharging channels of the feeding hopper form an inverted Y shape, and the control assembly is arranged at the intersection of the feeding channel and the two discharging channels.

Preferably, the control assembly comprises a material baffle plate for shielding the inlet of the discharge channel, a material baffle plate rotating shaft, a telescopic cylinder and a connecting rod which forms a crank connecting rod transmission mechanism together with the telescopic cylinder; the material baffle rotating shaft penetrates through the feed hopper along a direction vertical to the feeding direction, and is arranged close to the inner wall of the joint of the two discharging channels; the striker plate is fixedly connected to the periphery of the rotating shaft of the striker plate; the telescopic cylinder is arranged on the outer wall of the feed hopper; one end of the connecting rod is hinged to the extending end of the telescopic cylinder, and the other end of the connecting rod is fixedly connected to the striker plate rotating shaft.

Preferably, the control assembly comprises two insertion plates for respectively blocking inlets of the two discharging channels, and the two insertion plates are respectively inserted into the inlets of the two discharging channels.

preferably, the insert plate at the inlet of one tapping channel is arranged in a direction coinciding with the direction of extension of the other tapping channel.

Preferably, the first spiral conveying device and the second spiral conveying device are arranged side by side, the inlet of the first spiral conveying device and the inlet of the second spiral conveying device are located at the top and arranged side by side, and the outlet of the first spiral conveying device and the outlet of the second spiral conveying device are located at the bottom and arranged side by side.

Preferably, the double-arm continuous sand mixer further comprises a base, and the large arm is rotatably connected to the base through a first rotating assembly; the first rotary assembly comprises a first rotary support fixedly installed on the base, a driving gear is meshed in the first rotary support and fixedly connected to the large arm, and the driving gear is connected with a rotary motor.

Preferably, the sand inlet of the sand mixing device is rotatably connected to the bottom of the transition hopper through a second rotating assembly.

Preferably, the sand mulling device is provided with a curing agent feeding port and a resin feeding port.

Compared with the prior art, the utility model discloses an advantage and beneficial effect lie in:

1. In the double-arm continuous sand mixer provided by the utility model, the first spiral conveying device arranged on the big arm is only used for conveying new sand materials, the second spiral conveying device is only used for conveying old sand materials, two sets of conveying paths are adopted for conveying new sand and old sand, the control assembly of the feeding device can control the random switching conveying of the new sand materials and the old sand materials, the emptying and the repeated starting and stopping are not needed, the waste sand problem caused by the starting and stopping at each time is avoided, and the resource waste is reduced;

2. The utility model provides a both arms continuous type roller mill, when carrying out new, used sand material conversion transport convenient operation is swift, has improved production efficiency greatly, has reduced manufacturing cost.

Drawings

Fig. 1 is a front view of a double-arm continuous sand mixer provided by an embodiment of the present invention;

FIG. 2 is a front view of a large arm, a screw conveyor and a transition hopper of a double-arm continuous sand mixer according to an embodiment of the present invention;

FIG. 3 is a right side view of a large arm, a screw conveyor and a transition hopper of a double-arm continuous sand mixer according to an embodiment of the present invention;

Fig. 4 is a top view of a spiral conveying device in a double-arm continuous sand mixer according to an embodiment of the present invention;

Fig. 5 is a schematic structural diagram of a sand mixing device in a double-arm continuous sand mixer according to an embodiment of the present invention;

Fig. 6 is a schematic structural diagram of a sand feeding device in a double-arm continuous sand mixer provided by the embodiment of the present invention;

Fig. 7 is a schematic structural view of another sand inlet device provided in the embodiment of the present invention;

In the above figures: 1. a base; 2. a first swing assembly; 21. a first slewing bearing; 22. a driving gear; 23. a rotary motor; 3. a large arm; 4. a screw conveyor; 4a, a first spiral conveying device; 4b, a second spiral conveying device; 41. an outlet; 41a, an outlet of the first screw conveyer; 41b, an outlet of the second screw conveyer; 42. an inlet; 42a, an inlet of the first screw conveyor; 42b, an inlet of a second screw conveyor; 43. a transport housing; 44. a screw conveying blade; 45. a conveying rotating shaft; 46. a conveying drive motor; 5. a feeding device; 51. a feed hopper; 511. a feed channel; 512. a discharge channel; 52. a control component; 521. a striker plate; 522. a connecting rod; 523. a striker plate rotating shaft; 524. a telescopic cylinder; 525. inserting plates; 6. a transition hopper; 7. a second swing assembly; 8. a small arm; 9. a sand mulling unit; 901. a sand inlet; 902. a curing agent inlet; 903. a resin inlet; 904. a sand outlet; 905. a sand mulling shell; 906. a sand mulling rotating shaft; 907. pushing the helical blade; 908. a stirring blade; 909. reversely pushing the blades; 910. a coupling; 911. the sand mulling drives the motor.

Detailed Description

The present invention is specifically described below by way of exemplary embodiments. It should be understood, however, that elements, structures and features of one embodiment may be beneficially incorporated in other embodiments without further recitation.

In the description of the present invention, it should be noted that the terms "inside", "outside", "top", "bottom", etc. indicate the orientation or positional relationship based on the positional relationship shown in fig. 1, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed in a specific orientation, and be operated, and thus should not be construed as limiting the present invention. Furthermore, the terms "first" and "second" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

as shown in fig. 1-6, the utility model relates to a double-arm continuous sand mixer, which comprises a spiral conveying device 4 arranged on a big arm 3, a sand mixer 9 arranged on a small arm 8, a feeding device 5 used for filling sand into the spiral conveying device 4, and a transition hopper 6 connected between the spiral conveying device 4 and the sand mixer 9; the feeding device 5 comprises a feeding hopper 51, the feeding hopper 51 comprises a feeding channel 511 arranged at the top and two discharging channels 512 arranged at the bottom, and the feeding device 5 further comprises a control component 52 for controlling the feeding channel 511 and the two discharging channels 512 to be respectively and independently communicated; the screw conveying device 4 comprises a first screw conveying device 4a for conveying new sand materials and a second screw conveying device 4b for conveying old sand materials, an inlet 42a of the first screw conveying device and an inlet 42b of the second screw conveying device are respectively communicated with the two discharge channels 512 of the feed hopper 51, and an outlet 41a of the first screw conveying device and an outlet 41b of the second screw conveying device are both connected to the top of the transition hopper 6; the sand mixing device 9 is provided with a sand inlet 901, and the sand inlet 901 is connected to the bottom of the transition hopper 6.

The method for carrying out new sand and old sand conversion conveying by using the double-arm continuous sand mixer comprises the following steps: when the fed materials are new sand materials, the control component 52 of the feeding device 5 controls the feeding channel 511 of the feeding hopper 51 to be independently communicated with the discharging channel 512 connected to the first spiral conveying device 4a, the new sand materials are fed from the feeding channel 511 of the feeding hopper 51, the new sand materials flow into the first spiral conveying device 4a through the discharging channel 512 connected to the first spiral conveying device 4a, the first spiral conveying device 4a conveys the new sand materials to the transition hopper 6, and the new sand materials enter the sand mixing device 9 through the transition hopper 6; when the feeding is used sand, the control component 52 of the feeding device 5 controls the feeding channel 511 of the feeding hopper 51 to be independently communicated with the discharging channel 512 connected to the second spiral conveying device 4b, the used sand is fed from the feeding channel 511 of the feeding hopper 51, the used sand flows into the second spiral conveying device 4b through the discharging channel 512 connected to the second spiral conveying device 4b, the second spiral conveying device 4b conveys the used sand to the transition hopper 6, and the used sand enters the sand mixing device 9 through the transition hopper 6.

In the double-arm continuous sand mixer, the first spiral conveying device 4a arranged on the large arm 3 of the double-arm continuous sand mixer is only used for conveying new sand materials, the second spiral conveying device 4b is only used for conveying old sand materials, two conveying paths are adopted for conveying new sand and old sand, the control assembly 52 of the feeding device 5 can control the new sand materials and the old sand materials to be conveyed in a switching mode at any time, emptying and repeated starting and stopping are not needed, the problem of waste sand caused by starting and stopping at every time is avoided, and resource waste is reduced. Moreover, the double-arm continuous sand mixer is convenient and quick to operate for transferring new and old sand materials, greatly improves the production efficiency and reduces the production cost.

In the above-mentioned two-arm continuous type sand mixer, as shown in fig. 2, each of the first spiral conveying device 4a and the second spiral conveying device 4b includes a conveying casing 43, an inlet 42 disposed at a top of one axial end of the conveying casing 43, an outlet 41 disposed at a bottom of the other axial end of the conveying casing 43, a conveying rotating shaft 45 axially penetrating the conveying casing 43, a spiral conveying blade 44 spirally wound outside the conveying rotating shaft 45, and a conveying driving motor 46 for driving the conveying rotating shaft 45 to rotate, wherein the conveying driving motor 46 may adopt a shaft-mounted speed reducer, and the shaft-mounted speed reducer is mounted at one end of the conveying rotating shaft 45 close to the inlet 42 to drive the conveying rotating shaft 45 to rotate. In order to facilitate installation of the feeding device 5 and the transition hopper 6, as shown in fig. 3 and 4, the first screw conveyor 4a and the second screw conveyor 4b are preferably arranged side by side, the inlet 42a of the first screw conveyor and the inlet 42b of the second screw conveyor are both located at the top and are arranged side by side, and the outlet 41a of the first screw conveyor and the outlet 41b of the second screw conveyor are both located at the bottom and are arranged side by side.

As shown in fig. 5, the sand mulling device 9 includes a sand mulling shell 905, a sand inlet 901 is arranged at the top of one end of the sand mulling shell 905, and a sand outlet 904 is arranged at the bottom of the other end of the sand mulling shell 905; a sand mulling rotating shaft 906 penetrates through the sand mulling shell 905 along the axial direction, and a pushing spiral blade 907, a stirring blade 908 and a reverse pushing blade 909 are sequentially arranged on the periphery of the sand mulling rotating shaft 906 along the direction from a sand inlet 901 to a sand outlet 904; one end of the sand mulling rotating shaft 906 close to the sand inlet 901 is connected with a coupler 910 and a sand mulling driving motor 911 to drive the sand mulling rotating shaft 906 to rotate, which is the structure of the sand mulling device existing in the field and will not be described in detail herein. The sand mixing device 9 is provided with a curing agent inlet 902 and a resin inlet 903, the curing agent is added to the sand mixing device 9 through the curing agent inlet 902, and the resin is added to the sand mixing device 9 through the resin inlet 903 to be mixed with the sand material, so that qualified molding sand can be prepared.

As shown in fig. 6, in the feeding device 5, the feeding channel 511 and the two discharging channels 512 of the feeding hopper 51 form an inverted Y shape, which is beneficial for the sand material to flow into the discharging channels 512 from the feeding channel 511, and the control component 52 is disposed at the intersection of the feeding channel 511 and the two discharging channels 512, which is beneficial for controlling the feeding channel 511 to be communicated with the two discharging channels 512 respectively.

With respect to the specific structure of the control unit 52 in the feeding device 5, two different embodiments will be described below. In the first embodiment, as shown in fig. 6, the control assembly 52 includes a striker plate 521 for blocking the inlet of the discharging channel 512, and further includes a striker plate rotating shaft 523, a telescopic cylinder 524, and a connecting rod 522 which forms a crank-link transmission mechanism with the telescopic cylinder 524; the material baffle rotating shaft 523 penetrates through the feed hopper 51 along the direction vertical to the feeding direction, and the material baffle rotating shaft 523 is arranged close to the inner wall of the joint of the two discharging channels 512; the striker plate 521 is fixedly connected to the periphery of the striker plate rotating shaft 523; the telescopic cylinder 524 is mounted on the outer wall of the feed hopper 51; one end of the connecting rod 522 is hinged to the extending end of the telescopic cylinder 524, and the other end is fixedly connected to the striker plate rotating shaft 523. The control process of the control assembly 52 controlling the feed channel 511 to be communicated with the two discharge channels 512 respectively and independently is as follows: the rotating shaft 523 of the striker plate is controlled to rotate by a crank-link mechanism formed by the telescopic cylinder 524 and the connecting rod 522, and the rotating shaft 523 of the striker plate drives the striker plate 521 to turn so that the striker plate 521 shields the inlet of one discharge channel 512, so that the feed channel 511 is communicated with the other discharge channel 512 independently. In another embodiment, as shown in FIG. 7, the control assembly 52 includes two insert plates 525 for respectively blocking the inlets of the two discharging channels 512, and the two insert plates 525 are respectively inserted into the inlets of the two discharging channels 512. The control process of the control assembly 52 controlling the feed channel 511 to be communicated with the two discharge channels 512 respectively and independently is as follows: the feed channel 511 and the discharge channel 512 can be connected separately by pulling out an insert plate 525 at the inlet of the discharge channel 512. In order to prevent sand from accumulating on the insert plates 525, it is preferable that the insert plates 525 at the inlet of one of the discharging passages 512 are arranged in a direction corresponding to the extending direction of the other discharging passage 512, as shown in fig. 7. It should be understood that the control assembly 52 of the feeding device 5 of the present invention is not limited to the above two embodiments, and those skilled in the art can also adopt other control assemblies 52 with suitable structures as long as the feeding channel 511 and the two discharging channels 512 can be controlled to communicate separately.

In order to enlarge the molding area, as shown in fig. 1 and fig. 2, the double-arm continuous sand mixer further comprises a base 1, and a large arm 3 is rotatably connected to the base 1 through a first rotating assembly 2; the first rotating assembly 2 comprises a first rotating support 21 fixedly installed on the base 1, a driving gear 22 is engaged and connected in the first rotating support 21, the driving gear 22 is fixedly connected to the large arm 3, and the driving gear 22 is connected with a rotating motor 23 to drive the driving gear 22 to rotate. The large arm 3 rotates around the base 1 through the arranged first rotating assembly 2, primary maneuvering rotation of the double-arm continuous sand mixer is formed, and the molding area is enlarged.

In order to further enlarge the molding area, as shown in fig. 1 and 5, a sand inlet 901 of the sand mixing device 9 is rotatably connected to the bottom of the transition hopper 6 through a second rotating assembly 7. In this embodiment, the second rotating assembly 7 is specifically a second rotating support, and the rotation of the sand mixing device 9 around the outlet 41 of the spiral conveying device 4 is realized through the second rotating assembly 7, so that a two-stage manual rotation of the double-arm continuous sand mixer is formed, the molding area is further enlarged, and flexible molding is facilitated.

Claims

1. both arms continuous type roller mill, its characterized in that: the sand mixing device comprises a spiral conveying device arranged on a large arm, a sand mixing device arranged on a small arm, a feeding device used for filling sand materials into the spiral conveying device, and a transition hopper connected between the spiral conveying device and the sand mixing device; the feeding device comprises a feeding hopper, the feeding hopper comprises a feeding channel arranged at the top and two discharging channels arranged at the bottom, and the feeding device also comprises a control assembly used for controlling the feeding channel and the two discharging channels to be respectively and independently communicated; the spiral conveying device comprises a first spiral conveying device for conveying new sand materials and a second spiral conveying device for conveying old sand materials, an inlet of the first spiral conveying device and an inlet of the second spiral conveying device are respectively communicated with two discharging channels of the feed hopper, and an outlet of the first spiral conveying device and an outlet of the second spiral conveying device are connected to the top of the transition hopper; the sand mulling device is provided with a sand inlet, and the sand inlet is connected to the bottom of the transition hopper.

2. the dual arm continuous mixer of claim 1, wherein: the feed channel and two discharging channel of feeder hopper constitute the font of falling Y, control assembly set up in feed channel and two discharging channel's intersection.

3. the dual arm continuous mixer of claim 2, wherein: the control assembly comprises a material baffle plate for shielding the inlet of the discharge channel, a material baffle plate rotating shaft, a telescopic cylinder and a connecting rod which forms a crank connecting rod transmission mechanism together with the telescopic cylinder; the material baffle rotating shaft penetrates through the feed hopper along a direction vertical to the feeding direction, and is arranged close to the inner wall of the joint of the two discharging channels; the striker plate is fixedly connected to the periphery of the rotating shaft of the striker plate; the telescopic cylinder is arranged on the outer wall of the feed hopper; one end of the connecting rod is hinged to the extending end of the telescopic cylinder, and the other end of the connecting rod is fixedly connected to the striker plate rotating shaft.

4. the dual arm continuous mixer of claim 2, wherein: the control assembly comprises two inserting plates which are used for respectively shielding the inlets of the two discharging channels, and the two inserting plates are respectively inserted into the inlets of the two discharging channels.

5. The dual arm continuous mixer of claim 4, wherein: the insert plate at the inlet of one tapping channel is arranged in a direction corresponding to the direction of extension of the other tapping channel.

6. The dual arm continuous mixer of claim 1, wherein: first spiral delivery mechanism and second spiral delivery mechanism set up side by side, first spiral delivery mechanism's import with second spiral delivery mechanism's import all is located the top and sets up side by side, first spiral delivery mechanism's export with second spiral delivery mechanism's export all is located the bottom and sets up side by side.

7. the dual arm continuous mixer of claim 1, wherein: the double-arm continuous sand mixer further comprises a base, and the large arm is rotatably connected to the base through a first rotating assembly; the first rotary assembly comprises a first rotary support fixedly installed on the base, a driving gear is meshed in the first rotary support and fixedly connected to the large arm, and the driving gear is connected with a rotary motor.

8. the dual arm continuous mixer of claim 7, wherein: and a sand inlet of the sand mixing device is rotationally connected to the bottom of the transition hopper through a second rotary component.

9. The double-arm continuous type sand mixer according to claim 1 or 8, wherein: the sand mixing device is provided with a curing agent feeding port and a resin feeding port.