阅读说明：本技术 一种网筛式的簸箕及其生产制备工艺 (Mesh screen type dustpan and production and preparation process thereof ) 是由 陈昭群 苏松两 于 2020-08-07 设计创作，主要内容包括：本发明公开的是一种网筛式的簸箕,包括中间环、筛网以及外套环盖,中间环的上、下侧壁分别向内凹设,形成上部内凹槽和下部内凹槽,筛网紧绷盖铺于中间环上,并与中间环的外侧壁相焊接固定设置；外套环盖的上、下部分别向内弯设,形成上部弯折槽和下部弯折槽,外套环盖的中间形成敞开式的嵌设腔；同时,本发明还披露了一种网筛式的簸箕的生产制备工艺。本发明不仅可以实现在簸箕上安装筛网结构,保证簸箕筛选物料的效果,而且可以提高簸箕筛网的稳定性和弹性,避免筛网发松发软,同时可以使簸箕整体更加美观。(The invention discloses a mesh screen type dustpan, which comprises a middle ring, a screen and an outer sleeve ring cover, wherein the upper side wall and the lower side wall of the middle ring are respectively inwards recessed to form an upper inner groove and a lower inner groove; the upper part and the lower part of the outer sleeve ring cover are respectively bent inwards to form an upper bent groove and a lower bent groove, and an open embedding cavity is formed in the middle of the outer sleeve ring cover; meanwhile, the invention also discloses a production and preparation process of the mesh screen type dustpan. The invention not only can realize the installation of the screen mesh structure on the dustpan, ensure the material screening effect of the dustpan, but also can improve the stability and elasticity of the dustpan screen mesh, avoid the screen mesh from being loose and soft, and simultaneously make the dustpan more beautiful as a whole.)

1. The utility model provides a dustpan of mesh screen formula which characterized in that: the screen cloth is tightly covered on the middle ring and is fixedly welded with the outer side wall of the middle ring; the upper and lower parts of the outer sleeve ring cover are respectively inwards bent to form an upper bent groove and a lower bent groove, the middle part of the outer sleeve ring cover forms an open type embedding cavity, the middle ring is movably embedded in the embedding cavity in the outer sleeve ring cover in a matched mode, the upper inner groove of the middle ring is movably embedded in the upper bent groove in the outer sleeve ring cover in a matched mode, and the lower groove of the middle ring is movably embedded in the lower bent groove in the outer sleeve ring cover in a matched mode.

2. The dustpan of claim 1, wherein the screen is a mesh screen, and the dustpan comprises: the middle ring and the outer sleeve ring cover are respectively of an integrally roll-formed structure.

3. The dustpan of claim 1, wherein the screen is a mesh screen, and the dustpan comprises: the bending radian of the groove body of the upper bending groove is different from that of the groove body of the lower bending groove.

4. A production and preparation process of a mesh screen type dustpan is characterized in that: the method comprises the following specific steps:

A. preparing an intermediate ring and an outer sleeve ring cover: selecting strip-shaped sheets, and respectively pressing an integrally formed middle ring and an outer sleeve ring cover by using a line machine of different die sets for later use;

B. and (3) tight covering and paving of the screen: installing the pressed intermediate ring on a movable disc of a tight die in a matching manner with a cutting sleeve, then paving a screen on the upper part of the intermediate ring, pressing an upper die of the tight die on a lower die of the tight die to fix and press the screen on the intermediate ring, then starting a lifting device to lift the movable disc upwards to enable the screen to be tightly covered on the upper plane of the intermediate ring, and simultaneously tightly pressing and pressing the screen on the outer side wall of the intermediate ring to finish the tight covering and paving of the screen;

C. welding and fixing the screen mesh: welding and fixing the screen tightly pressed against the outer side wall of the middle ring and the outer side wall of the middle ring by using a cold welding machine;

D. trimming: descending the lifting device, opening the mould, taking down the upper mould, taking down the intermediate ring covered with the screen tightly, and trimming the redundant screen to obtain the intermediate ring covered with the screen tightly;

E. the cover of the outer sleeve ring cover is arranged: the intermediate ring obtained in the fourth step is movably embedded in the embedding cavity in the outer sleeve ring cover in a matching manner, then the inner groove in the upper part of the intermediate ring is movably embedded in the upper bending groove on the outer sleeve ring cover in a matching manner, and the lower groove of the intermediate ring is movably embedded in the lower bending groove on the outer sleeve ring cover in a matching manner, so that the movable covering of the outer sleeve ring cover is completed;

F. interface processing of the outer sleeve ring cover: and welding and fixing the butt joint of the outer sleeve ring cover, sleeving the protective cover to complete the treatment of the joint of the outer sleeve ring cover, and finally manufacturing the mesh screen type dustpan.

5. The manufacturing process of the meshed dustpan of claim 4, wherein: and the corresponding cover pressing surfaces of the upper die and the lower die are respectively and fixedly sleeved with a tightening sealing ring, and the two corresponding tightening sealing rings are of double-ring structures which are staggered and are arranged in a cover pressing manner.

6. The manufacturing process of the meshed dustpan of claim 5, wherein: the tightening sealing ring comprises an outer ring and an inner ring, the outer ring of the lower die is correspondingly positioned between the outer ring and the inner ring of the upper die, and the inner ring of the lower die is correspondingly positioned on the inner side of the inner ring of the upper die.

7. The manufacturing process of the meshed dustpan of claim 4, wherein: the intermediate ring, the screen and the outer sleeve ring cover are all made of metal materials.

Technical Field

The invention relates to the field of design and production of screen equipment, in particular to a mesh screen type dustpan and a production and preparation process thereof.

Background

The dustpan is a common daily life articles for functions such as screening material or drainage, and present majority dustpan all is bamboo establishment, and bamboo dustpan has a lot of not enough in using, and it is low not only life, and the sieve filter mesh number is inhomogeneous moreover, and the structural stability of establishment has certain not enough, and simultaneously, bamboo dustpan is difficult for preserving, easily appears going mildy and giving birth to the condition of worm-eating.

Chinese patent: a dustpan (application publication No. CN102475508A) is disclosed, which is made of metal material and has a structure that a plurality of sieve holes are drilled on the bottom surface of the dustpan to realize the filtering function of a sieve net. Although the utility model is made of metal materials, the attractive appearance and the stability are good, the structure has many defects, for example, the whole body is made of metal, the cost is high, the weight is heavy, and meanwhile, the screening function is limited greatly because no screen is arranged.

In order to overcome the technical problems, some metal dustpans are also available in the market, as shown in the attached drawing 1 of the specification, the metal dustpans are also metal dustpans, a screen body 15 is welded at the bottom of the metal dustpans 10 in a matching manner, so that the effect of screening materials can be improved, and the connecting point of the screen body 15 and the dustpans 10 is a welding fixing point on the side wall or the bottom of the dustpans 10.

However, the screen mesh of the dustpan made of metal materials is generally fixed at the bottom of the dustpan by welding, and welding points need to be polished and polished, so that the dustpan is not attractive, and secondly, the tightness of the screen mesh is low, and the tightness can be further reduced after the dustpan is used for a long time, so that the screening effect is influenced, the elasticity of the screen mesh is reduced, and the structure and the manufacturing process need to be further improved and perfected, so that the dustpan with excellent quality and price can be manufactured.

Disclosure of Invention

The invention discloses a mesh screen type dustpan and a production and preparation process thereof, and mainly aims to overcome the defects in the prior art.

The technical scheme adopted by the invention is as follows:

a mesh screen type dustpan comprises a middle ring, a screen and an outer sleeve ring cover, wherein the upper side wall and the lower side wall of the middle ring are respectively inwards recessed to form an upper inner groove and a lower inner groove, and the screen is tightly covered on the middle ring and is fixedly welded with the outer side wall of the middle ring; the upper and lower parts of the outer sleeve ring cover are respectively inwards bent to form an upper bent groove and a lower bent groove, the middle part of the outer sleeve ring cover forms an open type embedding cavity, the middle ring is movably embedded in the embedding cavity in the outer sleeve ring cover in a matched mode, the upper inner groove of the middle ring is movably embedded in the upper bent groove in the outer sleeve ring cover in a matched mode, and the lower groove of the middle ring is movably embedded in the lower bent groove in the outer sleeve ring cover in a matched mode.

Furthermore, the intermediate ring and the outer sleeve ring cover are respectively of an integrally roll-formed structure.

Furthermore, the bending radian of the groove bodies of the upper bending groove and the lower bending groove is different.

A production and preparation process of a mesh screen type dustpan comprises the following specific steps:

A. preparing an intermediate ring and an outer sleeve ring cover: selecting strip-shaped sheets, and respectively pressing an integrally formed middle ring and an outer sleeve ring cover by using a line machine of different die sets for later use;

B. and (3) tight covering and paving of the screen: installing the pressed intermediate ring on a movable disc of a tight die in a matching manner with a cutting sleeve, then paving a screen on the upper part of the intermediate ring, pressing an upper die of the tight die on a lower die of the tight die to fix and press the screen on the intermediate ring, then starting a lifting device to lift the movable disc upwards to enable the screen to be tightly covered on the upper plane of the intermediate ring, and simultaneously tightly pressing and pressing the screen on the outer side wall of the intermediate ring to finish the tight covering and paving of the screen;

C. welding and fixing the screen mesh: welding and fixing the screen tightly pressed against the outer side wall of the middle ring and the outer side wall of the middle ring by using a cold welding machine;

D. trimming: descending the lifting device, opening the mould, taking down the upper mould, taking down the intermediate ring covered with the screen tightly, and trimming the redundant screen to obtain the intermediate ring covered with the screen tightly;

E. the cover of the outer sleeve ring cover is arranged: the intermediate ring obtained in the fourth step is movably embedded in the embedding cavity in the outer sleeve ring cover in a matching manner, then the inner groove in the upper part of the intermediate ring is movably embedded in the upper bending groove on the outer sleeve ring cover in a matching manner, and the lower groove of the intermediate ring is movably embedded in the lower bending groove on the outer sleeve ring cover in a matching manner, so that the movable covering of the outer sleeve ring cover is completed;

F. interface processing of the outer sleeve ring cover: and welding and fixing the butt joint of the outer sleeve ring cover, sleeving the protective cover to complete the treatment of the joint of the outer sleeve ring cover, and finally manufacturing the mesh screen type dustpan.

Furthermore, the corresponding cover pressing surfaces of the upper die and the lower die are respectively and fixedly sleeved with a tightening sealing ring, and the two corresponding tightening sealing rings are of double-ring structures which are staggered and are arranged in a cover pressing mode.

Furthermore, the tightening sealing ring comprises an outer ring and an inner ring, the outer ring of the lower die is correspondingly positioned between the outer ring and the inner ring of the upper die, and the inner ring of the lower die is correspondingly positioned on the inner side of the inner ring of the upper die.

Furthermore, the intermediate ring, the screen and the outer sleeve ring cover are all made of metal materials.

As can be seen from the above description of the present invention, compared with the prior art, the present invention has the following advantages:

1. according to the invention, through the structure of the middle ring, the screen and the outer sleeve ring cover, the screen structure can be arranged on the dustpan, so that the material screening effect of the dustpan is ensured, the stability and elasticity of the screen of the dustpan are improved, the screen is prevented from being loosened and softened, and the whole dustpan is more attractive.

2. Through improvement on the process and equipment, the metal screen can be automatically tightened and laid and installed by using the tightening die, the tightening degree of the screen is improved, the soft condition of the screen is prevented, and meanwhile, the fixation of the screen and the nesting of the middle ring can be realized by designing the structures of the middle ring and the outer sleeve ring cover, so that the welding point can be covered, and the tightening degree of the screen can be further improved.

3. The invention can further improve the automation level of the production and the manufacture of the metal dustpan by using equipment such as a tight die equipment, an automatic wire pressing machine, an automatic cold welding machine and the like, change the backward production mode and the production process in the industry and manufacture the metal dustpan with higher quality and lower cost.

Drawings

Fig. 1 is a schematic structural view of a metal dustpan in the prior art.

Fig. 2 is a schematic structural diagram of the present invention.

Fig. 3 is an exploded view of the intermediate ring and outer collar cover of the present invention.

FIG. 4 is a schematic view of the structure of the intermediate ring of the present invention.

Fig. 5 is a schematic structural view of the outer grommet cover of the present invention.

Fig. 6 is a schematic structural view of the tightening die of the present invention.

Fig. 7 is a schematic top view of the tensioning die of the present invention.

Fig. 8 is a schematic structural view of the upper die of the tensioning die of the present invention.

Fig. 9 is a schematic structural view of the movable plate of the tightening die of the present invention.

Detailed Description

Embodiments of the present invention will be further described with reference to the accompanying drawings.

As shown in fig. 2 to 9, a mesh screen type dustpan comprises a middle ring 1, a screen 2 and an outer sleeve ring cover 3, wherein the upper and lower side walls of the middle ring 1 are recessed inwards to form an upper inner groove 11 and a lower inner groove 12, and the screen 2 is tightly laid on the middle ring 1 and is welded and fixed with the outer side wall of the middle ring 1; the upper portion and the lower portion of the outer sleeve ring cover 3 are respectively bent inwards to form an upper bent groove 31 and a lower bent groove 32, an open type embedding cavity 33 is formed in the middle of the outer sleeve ring cover 3, the middle ring 1 is movably embedded in the embedding cavity 33 in the outer sleeve ring cover 3 in a matched mode, the upper inner groove 11 of the middle ring 1 is movably embedded in the upper bent groove 31 in the outer sleeve ring cover 3 in a matched mode, and the lower groove 12 of the middle ring 1 is movably embedded in the lower bent groove 32 in the outer sleeve ring cover 3 in a matched mode.

Furthermore, the intermediate ring 1 and the outer sleeve ring cover 3 are respectively of an integrally roll-formed structure.

Furthermore, the bending radian of the upper bending groove 31 is different from that of the lower bending groove 32.

The tight mould device for producing the mesh screen type dustpan comprises a fixed frame 4, a movable disc 5, an upper mould 6 and a lower mould 7, wherein the upper part of the fixed frame 4 is provided with an operating table 41, the middle part of the operating table 41 is provided with an operating port 42, the movable disc 5 is arranged at the operating port 42 in a matching way, the bottom of the movable disc 5 is provided with a lifting device 8, the lifting device 8 drives the movable disc 5 to lift and fall along the operating port 42 in the up-and-down direction, and a middle ring 1 of the dustpan is movably clamped on the movable disc 5 in a matching way; the lower die 7 is fixedly arranged on the operating platform 41, the upper die 6 is matched with the movable cover to be pressed on the lower die 7, the upper die (6) and the lower die (7) are matched with each other to fixedly press the screen 2, and the screen 2 is matched and paved on the intermediate ring 1.

Furthermore, a fixed convex ring 51 is fixedly arranged at the outer periphery of the movable disk 5, and the intermediate ring 1 is movably clamped on the fixed convex ring 51.

Furthermore, a plurality of fixing clamps 43 are arranged on the operating platform 41, a plurality of fixing blocks 61 are arranged on the upper die 6, and the fixing clamps 43 and the fixing blocks 61 are matched, clamped and fixedly arranged.

Further, the fixing block 61 is in a strip shape, and the fixing block 61 extends out of the outer edge of the upper die 6.

Furthermore, the corresponding gland surfaces of the upper die 6 and the lower die 7 are respectively and fixedly sleeved with a tightening sealing ring 8, and the two corresponding tightening sealing rings 8 are of double-ring structures which are staggered and are arranged in a capping manner.

Further, the outer edge of the packing 8 extends beyond the edge of the operating opening 42.

When the tight die device is used, the intermediate ring can be fixed and clamped firstly, then the screen cloth covered on the intermediate ring is automatically tightened and pressed, so that the screen cloth is tightly stretched on the upper plane of the intermediate ring and also tightly stretched on the outer side surface of the intermediate ring, at the moment, a worker welds and fixes the screen cloth on the outer side surface of the intermediate ring by using a cold welding machine, and the intermediate ring covered with the screen cloth in a tight manner is obtained.

A production and preparation process of a mesh screen type dustpan comprises the following specific steps:

A. preparing an intermediate ring and an outer sleeve ring cover: selecting strip-shaped sheets, and respectively pressing an integrally formed middle ring and an outer sleeve ring cover by using a line machine of different die sets for later use;

B. and (3) tight covering and paving of the screen: installing the pressed intermediate ring on a movable disc of a tight die in a matching manner with a cutting sleeve, then paving a screen on the upper part of the intermediate ring, pressing an upper die of the tight die on a lower die of the tight die to fix and press the screen on the intermediate ring, then starting a lifting device to lift the movable disc upwards to enable the screen to be tightly covered on the upper plane of the intermediate ring, and simultaneously tightly pressing and pressing the screen on the outer side wall of the intermediate ring to finish the tight covering and paving of the screen;

C. welding and fixing the screen mesh: welding and fixing the screen tightly pressed against the outer side wall of the middle ring and the outer side wall of the middle ring by using a cold welding machine;

D. trimming: descending the lifting device, opening the mould, taking down the upper mould, taking down the intermediate ring covered with the screen tightly, and trimming the redundant screen to obtain the intermediate ring covered with the screen tightly;

E. the cover of the outer sleeve ring cover is arranged: the intermediate ring obtained in the fourth step is movably embedded in the embedding cavity in the outer sleeve ring cover in a matching manner, then the inner groove in the upper part of the intermediate ring is movably embedded in the upper bending groove on the outer sleeve ring cover in a matching manner, and the lower groove of the intermediate ring is movably embedded in the lower bending groove on the outer sleeve ring cover in a matching manner, so that the movable covering of the outer sleeve ring cover is completed;

F. interface processing of the outer sleeve ring cover: and welding and fixing the butt joint of the outer sleeve ring cover, sleeving the protective cover to complete the treatment of the joint of the outer sleeve ring cover, and finally manufacturing the mesh screen type dustpan.

Furthermore, the corresponding cover pressing surfaces of the upper die and the lower die are respectively and fixedly sleeved with a tightening sealing ring, and the two corresponding tightening sealing rings are of double-ring structures which are staggered and are arranged in a cover pressing mode.

Furthermore, the tightening sealing ring comprises an outer ring and an inner ring, the outer ring of the lower die is correspondingly positioned between the outer ring and the inner ring of the upper die, and the inner ring of the lower die is correspondingly positioned on the inner side of the inner ring of the upper die.

Furthermore, the intermediate ring, the screen and the outer sleeve ring cover are all made of metal materials.

As can be seen from the above description of the present invention, compared with the prior art, the present invention has the following advantages:

1. according to the invention, through the structure of the middle ring, the screen and the outer sleeve ring cover, the screen structure can be arranged on the dustpan, so that the material screening effect of the dustpan is ensured, the stability and elasticity of the screen of the dustpan are improved, the screen is prevented from being loosened and softened, and the whole dustpan is more attractive.

2. Through improvement on the process and equipment, the metal screen can be automatically tightened and laid and installed by using the tightening die, the tightness of the screen is improved, the soft condition of the screen is prevented, meanwhile, the fixation of the screen and the nesting of the middle ring can be realized by designing the structures of the middle ring and the outer sleeve ring cover, namely, the welding point can be covered, and the nesting of the middle ring and the outer sleeve ring cover can clamp the screen, so that the tightness of the screen is further improved.

3. The invention can further improve the automation level of the production and the manufacture of the metal dustpan by using equipment such as a tight die equipment, an automatic wire pressing machine, an automatic cold welding machine and the like, change the backward production mode and the production process in the industry and manufacture the metal dustpan with higher quality and lower cost.

The above description is only an embodiment of the present invention, but the design concept of the present invention is not limited thereto, and any insubstantial modifications of the present invention using this concept shall fall within the scope of infringing the present invention.