CN113523969A

CN113523969A - Centre form spraying equipment of polishing

Info

Publication number: CN113523969A
Application number: CN202110796360.7A
Authority: CN
Inventors: 郑翼; 郑彪
Original assignee: Beijing Haoyunda Zhichuang Technology Co Ltd
Current assignee: Beijing Haoyunda Zhichuang Technology Co Ltd
Priority date: 2021-07-14
Filing date: 2021-07-14
Publication date: 2021-10-22
Anticipated expiration: 2041-07-14
Also published as: CN113523969B

Abstract

The application provides a centre form spraying equipment of polishing includes: a polishing mechanism having a polishing brush; the polishing mechanism is movably connected with the supporting mechanism; the grinding mechanism comprises a housing, and the housing is movably connected to the supporting mechanism; the grinding brush is arranged in the housing, one side of the housing is open, and the brush head of the grinding brush extends out of the opening; the internal mold polishing and spraying equipment further comprises a dust collection mechanism, and the dust collection mechanism is arranged on the supporting mechanism; the dust collection mechanism is provided with at least one dust collection pipeline which is connected with the housing and communicated with the interior of the housing; the internal mold polishing and spraying equipment further comprises a spraying mechanism, and the spraying mechanism is arranged on the supporting mechanism; the spraying mechanism is provided with at least one spraying pipeline, the spraying pipeline is connected to the housing and communicated with the interior of the housing, and a spray head is arranged at the end part of the spraying pipeline, which is positioned in the housing. Compare in current manual work and carry out the brush of polishing and treat the surface of the work piece of polishing and polish, efficiency of polishing promotes by a wide margin, and collects polishing function, dust absorption function and spraying function in an organic whole.

Description

Centre form spraying equipment of polishing

Technical Field

The application belongs to the technical field of bridge engineering, and more specifically relates to an centre form spraying equipment that polishes.

Background

The box girder is one of the middle girders in bridge engineering, and the inside of the box girder is hollow. The box girder of the reinforced concrete structure is divided into a prefabricated box girder and a cast-in-place box girder, wherein the box girder prefabricated in an independent site can be erected after the lower engineering is completed in combination with a bridge girder erection machine. Common box girders include steel box girders that include steel form inner membranes, where the steel forms are cast in concrete.

Before the steel template inner film is put into use, the concrete surface of the inner film needs to be polished to reach the set smooth degree. In the prior art, the inner film of the steel template is polished manually, so that the polishing efficiency is low, and time and labor are wasted.

Disclosure of Invention

An object of the embodiment of the application is to provide an centre form spraying equipment that polishes to solve prior art and adopt manual mode to polish the steel form inner membrance and lead to the technical problem of the inefficiency of polishing.

In order to achieve the purpose, the technical scheme adopted by the application is as follows: the utility model provides an centre form spraying equipment of polishing, centre form spraying equipment of polishing include:

the polishing mechanism is provided with a polishing brush, and the polishing brush is used for polishing the surface of a workpiece to be polished;

the grinding mechanism is movably connected to the supporting mechanism, and the grinding brush can be driven to move to grind the surface of the workpiece to be ground when the grinding mechanism moves relative to the supporting mechanism;

the grinding mechanism comprises a housing, and the housing is movably connected to the supporting mechanism; the polishing brush is arranged in the housing, one side of the housing is open, and a brush head of the polishing brush extends out of the opening;

the internal mold polishing and spraying equipment further comprises a dust collection mechanism, and the dust collection mechanism is arranged on the supporting mechanism; the dust collection mechanism is provided with at least one dust collection pipeline which is connected with the housing and communicated with the interior of the housing;

the internal mold polishing and spraying equipment further comprises a spraying mechanism, and the spraying mechanism is arranged on the supporting mechanism; the spraying mechanism is provided with at least one spraying pipeline, the spraying pipeline is connected to the housing and communicated with the interior of the housing, and the end part of the spraying pipeline, which is positioned in the housing, is provided with a spray head.

In one embodiment, the supporting mechanism includes a truss mechanism and a traveling mechanism, the polishing mechanism is movably connected to the truss mechanism, the truss mechanism is supported by the traveling mechanism, and the traveling mechanism is used for driving the truss mechanism to move along the set direction of the surface.

In one embodiment, the grinding mechanism at least comprises a first grinding mechanism and a second grinding mechanism, and the first grinding mechanism and the second grinding mechanism are movably connected to the supporting mechanism;

the surfaces include at least a first surface and a second surface arranged at an angle, the first grinding mechanism is used for grinding the first surface, and the second grinding mechanism is used for grinding the second surface.

In one embodiment, the internal mold polishing and spraying device further comprises a first connecting mechanism, wherein the first connecting mechanism comprises at least one first linear driving mechanism; the fixing part of the first linear driving mechanism is connected to the supporting mechanism, and the driving part of the first linear driving mechanism is connected to the first grinding mechanism so as to drive the first grinding mechanism to be close to or far away from the first surface.

In one embodiment, the first connecting mechanism further includes a connecting beam, the connecting beam is parallel and connected to the first polishing mechanism, and the driving portion of the first linear driving mechanism is rotatably connected to the connecting beam.

In one embodiment, the driving part of the first linear driving mechanism and the connecting beam are rotatably connected through a ball head.

In one embodiment, the internal mold grinding and spraying device further comprises a second connecting mechanism, and the second connecting mechanism comprises at least one second linear driving mechanism; the fixing part of the second linear driving mechanism is connected to the supporting mechanism, and the driving part of the second linear driving mechanism is connected to the second polishing mechanism so as to drive the second polishing mechanism to be close to or far away from the second surface.

In one embodiment, the second connecting mechanism further comprises a guide mechanism, and the guide mechanism comprises a guide slide rail and a guide bracket; the guide sliding rail is arranged on the supporting mechanism, and the guide bracket is supported on the guide sliding rail in a sliding manner; the driving part of the second linear driving mechanism is connected to one end of the guide support, and the second polishing mechanism is connected to the other end, opposite to the one end, of the guide support.

In one embodiment, the first grinding mechanism comprises a main grinding part and an auxiliary grinding part, the auxiliary grinding part is hinged to the main grinding part, and the main grinding part and the auxiliary grinding part are provided with the grinding brushes;

the first surface includes a major surface and an edge surface attached to the major surface, the edge surface being disposed at an angle to the major surface; the main grinding part is used for grinding the main surface, and the auxiliary grinding part is used for grinding the edge surface.

In one embodiment, the first and second sharpening mechanisms are hingedly or disengagably disposed.

The application provides an centre form spraying equipment that polishes's beneficial effect lies in:

compared with the prior art, the centre form spraying equipment of polishing that this application provided will have the grinding machanism swing joint who polishes the brush in supporting mechanism, but supporting mechanism itself manual work promotes or through the running gear drive, and grinding machanism can order about the surface that the work piece of treating polishing was polished in the removal of the brush of polishing on it when for the supporting mechanism activity, compares and carries out the brush of polishing in current manual work and treats the surface of the work piece of polishing and polish, and efficiency of polishing promotes by a wide margin.

In addition, when the surface of the workpiece to be polished is polished by the polishing brush, the generated dust is prevented from leaking through the housing, and the dust suction mechanism is communicated with the interior of the housing through a dust suction pipeline, so that the dust in the interior of the housing is sucked away.

In addition, the spraying mechanism is arranged on the supporting mechanism; the spraying mechanism is provided with at least one spraying pipeline, the spraying pipeline is connected to the housing and conducted with the interior of the housing, a spray head is arranged at the end part of the spraying pipeline located in the housing, the spraying pipeline is connected to the housing and conducted with the interior of the housing, the spray head is arranged at the end part of the spraying pipeline located in the housing, and after polishing and dust removal, the spraying mechanism sprays the release agent on the inner mold.

Through the setting, the polishing function, the dust absorption function and the spraying function are integrated on the internal mold polishing and spraying equipment.

Drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings needed to be used in the embodiments or the prior art descriptions will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present application, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without inventive exercise.

Fig. 1 is a first schematic view of an internal mold grinding and spraying apparatus provided in an embodiment of the present application;

fig. 2 is a second schematic view of an internal mold grinding and spraying device provided in an embodiment of the present application;

fig. 3 is a schematic diagram of an in-mold grinding and spraying apparatus provided in an embodiment of the present application in an application state.

Wherein, in the figures, the respective reference numerals:

10. a polishing mechanism; 101. a first grinding mechanism; 102. a second grinding mechanism; 103. a third grinding mechanism; 104. polishing a brush; 105. a housing; 1011. a main polishing part; 1012. an auxiliary polishing part; 20. a support mechanism; 201. a truss mechanism; 202. a traveling mechanism; 2011. a cross beam; 2012. erecting a beam; 30. a first connecting mechanism; 301. a first linear drive mechanism; 302. a connecting beam; 40. a second connecting mechanism; 401. a second linear drive mechanism; 402. a guide mechanism; 4021. a guide slide rail; 4022. a guide bracket; 50. a third linear drive mechanism; 60. a dust suction mechanism; 601. a dust collection duct; 70. a spraying mechanism; 701. spraying a pipeline; 80. a workpiece to be polished; 801. a first surface; 802. a second surface; 803. a third surface; 8011. a major surface; 8012. an edge surface.

Detailed Description

In order to make the technical problems, technical solutions and advantageous effects to be solved by the present application clearer, the present application is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present application and are not intended to limit the present application.

It will be understood that when an element is referred to as being "secured to" or "disposed on" another element, it can be directly on the other element or be indirectly on the other element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or be indirectly connected to the other element.

It will be understood that the terms "length," "width," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like, as used herein, refer to an orientation or positional relationship indicated in the drawings that is solely for the purpose of facilitating the description and simplifying the description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus should not be considered as limiting the present application.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present application, "a plurality" means two or more unless specifically limited otherwise.

The internal mold grinding and spraying equipment provided by the embodiment of the application is explained. In the course of description, the present embodiment will be described with the box beam inner mold as the workpiece 80 to be ground.

Referring to fig. 1 and 2, the present application provides an internal mold grinding and spraying apparatus including: a grinding mechanism 10 having a grinding brush 104, the grinding brush 104 being for grinding a surface of the workpiece 80 to be ground; the grinding mechanism 10 is movably connected to the supporting mechanism 20, and the grinding mechanism 10 can drive the grinding brush 104 to move to grind the surface of the workpiece 80 to be ground when moving relative to the supporting mechanism.

Compared with the prior art, the internal mold polishing spraying equipment provided by the embodiment of the application has the advantages that the polishing mechanism 10 with the polishing brush 104 is movably connected to the supporting mechanism, the supporting mechanism can be manually pushed or driven by the walking mechanism 202, the polishing mechanism 10 can drive the polishing brush 104 to move to polish the surface of the workpiece 80 to be polished when moving relative to the supporting mechanism, and compared with the existing manual polishing brush 104, the surface of the workpiece 80 to be polished is polished, so that the polishing efficiency is greatly improved.

Among them, the support mechanism 20 is preferably a bracket type structure. The bracket type structure is easily set to be a structure combining the cross beam 2011, the vertical beam 2012 and the oblique beam, the grinding mechanism 10 can be movably connected to the cross beam 2011, the vertical beam 2012 or the oblique beam according to the required grinding angle, and the bracket type structure can enable the grinding mechanism 10 to have various optional installation angles.

In this embodiment, the supporting mechanism 20 includes a truss mechanism 201 and a traveling mechanism 202, the polishing mechanism 10 is movably connected to the truss mechanism 201, the truss mechanism 201 is supported by the traveling mechanism 202, and the traveling mechanism 202 is configured to drive the truss mechanism 201 to move along a set direction of the surface, for example, the truss mechanism can move along the longest extending direction of the surface, so as to drive the polishing mechanism 10 to polish along the longest extending direction of the surface.

The truss mechanism 201 includes two vertical beams 2012 arranged in parallel at intervals along the horizontal direction, and a cross beam 2011 erected between the two vertical beams 2012. The grinding mechanism 10 is movably connected to the vertical beam 2012 or the cross beam 2011. Alternatively, the vertical beams 2012 and the horizontal beams 2011 may each be connected to at least one grinding mechanism 10. The bottom end of the vertical beam 2012 is supported by the traveling mechanism 202, and the traveling mechanism 202 can be a traveling wheel or an AGV cart.

Wherein the grinding mechanism 10 is provided with rollers between the grinding mechanism 10 and the surface to be ground to prevent friction between the grinding mechanism 10 and the surface to be ground.

In one embodiment, the grinding mechanism 10 at least comprises a first grinding mechanism 101 and a second grinding mechanism 102, and both the first grinding mechanism 101 and the second grinding mechanism 102 are movably connected to the supporting mechanism 20; the surfaces at least comprise a first surface 801 and a second surface 802 which are arranged in an angle, the first grinding mechanism 101 is used for grinding the first surface 801, and the second grinding mechanism 102 is used for grinding the second surface 802.

As shown in fig. 3, a box beam inner mold is explained as a workpiece 80 to be ground. The box beam inner mold comprises a first surface 801, a second surface 802 and a third surface 803, the first surface 801 being selected as the upper surface of the box beam inner mold, the second surface 802 being selected as the side surface of the box beam inner mold, the box beam having two side surfaces, the third surface 803 being selected as the lower surface of the box beam.

The box beam inner die is used as a workpiece 80 to be ground, and the grinding mechanism 10 is at least a first grinding mechanism 101, a second grinding mechanism 102 and a third grinding mechanism 103. The first polishing mechanism 101, the second polishing mechanism 102 and the third polishing mechanism 103 are all movably connected to the supporting mechanism 20.

As shown in fig. 3, wherein the first grinding mechanism 101 is directed to the upper surface of the inner mold of the box girder for grinding the upper surface. The second grinding mechanism 102 is directed to the side surface of the inner mold of the box girder for grinding the side surface. The third grinding mechanism 103 is opposite to the lower surface of the box girder inner mold and is used for grinding the lower surface.

In other embodiments, the number of grinding mechanisms 10 may be flexibly set according to the number of surfaces of the workpiece 80 to be ground and the included angle between the surfaces.

In this embodiment, the upper surface of the inner mold of the box girder includes a main surface 8011 facing directly above and an edge surface 8012 attached to the main surface 8011, and the edge surface 8012 and the main surface 8011 are provided at an obtuse angle. The first grinding mechanism 101 comprises a main grinding part 1011 and an auxiliary grinding part 1012, and the auxiliary grinding part 1012 is hinged to the main grinding part 1011 to adapt to grinding of the corner position of the inner mold. The grinding section and the auxiliary grinding section 1012 each have a grinding brush 104, the main grinding section 1011 is for grinding the main surface 8011, and the auxiliary grinding section 1012 is for grinding the edge surface 8012. Since the width of the edge surface 8012 is much smaller than the width of the main surface 8011, the grinding of the edge surface 8012 may be carried with the grinding of the main surface 8011, and may be driven by the same power.

In this embodiment, two edge surfaces 8012 are respectively connected to two sides of the width of the main surface 8011, and therefore, two auxiliary polishing portions 1012 are respectively hinged to two ends of the length of the main polishing portion 1011, and the two auxiliary polishing portions 1012 are respectively used for polishing the two edge surfaces 8012.

In this embodiment, the side surfaces of the inner mold of the box girder and the edge surface 8012 are arranged at an acute angle and have a certain width, so that the second grinding mechanism 102 for grinding the side surfaces is driven with a separate power.

In this embodiment, the box girder has two side surfaces, and therefore two second grinding mechanisms 102 are adopted, and the two second grinding mechanisms 102 are symmetrically arranged at two sides of the first grinding mechanism 101 and are respectively used for grinding the two side surfaces.

In this embodiment, the lower surface of the box girder inner mold has two exposed portions, and the two portions are separated by the supporting portion of the box girder inner mold, so that two third grinding mechanisms 103 are adopted, and the two third grinding mechanisms 103 are correspondingly arranged at the lower inner sides of the two second grinding mechanisms 102, and are respectively used for grinding two side surfaces.

The first polishing mechanism 101, the second polishing mechanism 102 and the third polishing mechanism 103 may be hinged or disconnected between each two, or a combination of the hinged and disconnected configurations may be selected.

The power portions of the first sharpening mechanism 101, the second sharpening mechanism 102 and the third sharpening mechanism 103 mentioned in the present embodiment will be described below, respectively.

As shown in fig. 1 and 2, the internal mold grinding and spraying device further comprises a first connecting mechanism 30, wherein the first connecting mechanism 30 comprises at least one first linear driving mechanism 301; the fixing portion of the first linear driving mechanism 301 is connected to the supporting mechanism 20, and the driving portion of the first linear driving mechanism 301 is connected to the first polishing mechanism 101 to drive the first polishing mechanism 101 to approach or separate from the first surface 801.

The first linear driving mechanism 301 may be a linear motor or a telescopic mechanism, such as a pneumatic cylinder. In this embodiment, it is preferable that the first linear driving mechanism 301 is an air cylinder, and the first connecting mechanism 30 includes two air cylinders, and the two air cylinders are disposed at intervals along the length direction of the cross beam 2011.

The first connecting mechanism 30 further comprises a connecting beam 302, the connecting beam 302 is parallel and connected to the first grinding mechanism 101, and the driving part of the first linear driving mechanism 301 is rotatably connected to the connecting beam 302. Specifically, the driving part of the first linear driving mechanism 301 and the connecting beam 302 are rotatably connected by a ball, and when the width dimension of the box beam inner mold becomes small, the auxiliary polishing part 1012 is rotated relative to the main polishing part 1011 due to the self weight of the first polishing mechanism 101, so that the first polishing mechanism 101 is attached to the upper surface.

In one embodiment, the internal mold grinding and spraying device further comprises a second connecting mechanism 40, and the second connecting mechanism 40 comprises at least one second linear driving mechanism 401; the fixed portion of the second linear driving mechanism 401 is connected to the supporting mechanism 20, and the driving portion of the second linear driving mechanism 401 is connected to the second polishing mechanism 102, so as to drive the second polishing mechanism 102 to approach or move away from the second surface 802. In this embodiment, the internal mold polishing spraying device includes two second connecting mechanisms 40, and the two second connecting mechanisms 40 are symmetrically arranged along the width direction of the workpiece 80 to be polished.

In one embodiment, the second connecting mechanism 40 further includes a guiding mechanism 402, and the guiding mechanism 402 includes a guiding slide 4021 and a guiding bracket 4022; the guide slide rails 4021 are arranged on the support mechanism 20, and the guide brackets 4022 are slidably supported on the guide slide rails 4021; the driving portion of the second linear driving mechanism 401 is connected to one end of the guide holder 4022, and the second grinding mechanism 102 is connected to the other end of the guide holder 4022 opposite to the one end.

The second linear driving mechanism 401 may be a combination of a motor and a lead screw. In this embodiment, since the included angle between the side surface and the upper surface is acute, the side surface is inclined with respect to the truss mechanism 201, and thus the guide bracket 4022 is also inclined.

In this embodiment, the third polishing mechanism 103 is directly driven by the third linear driving mechanism 50 mounted on the truss mechanism 2011, the driving part of the third linear driving mechanism 50 is rotatably connected to the truss mechanism 201, and the driving part of the third linear driving mechanism 50 is rotatably connected to the third polishing mechanism 103.

In this embodiment, the second polishing mechanism and the third polishing mechanism are pushed by the third linear driving mechanism 50, and preferably, the third linear driving mechanism 50 is an air cylinder.

In one embodiment, the grinding mechanism comprises a housing 105, the housing 105 is movably connected to the support mechanism; the polishing brush 104 is arranged in the housing 105, one side of the housing 105 is open, and the brush head of the polishing brush 104 extends out of the opening; the internal mold polishing and spraying equipment further comprises a dust collection mechanism 60, and the dust collection mechanism 60 is arranged on the supporting mechanism 20; the dust suction mechanism 60 has at least one dust suction pipe 601, and the dust suction pipe 601 is connected to the housing 105 and is communicated with the inside of the housing 105, so that the polishing function and the dust suction function are integrated on the internal mold polishing spraying device of the present application.

In this embodiment, the dust suction mechanism 60 has a plurality of dust suction pipes 601, each of the first polishing mechanism 101, the second polishing mechanism 102, and the third polishing mechanism 103 includes a housing 105, and the plurality of dust suction pipes 601 are connected to each housing 105 and are communicated with the inside of each housing 105.

In one embodiment, the internal mold grinding and spraying device further comprises a spraying mechanism 70, wherein the spraying mechanism 70 is arranged on the supporting mechanism 20; the spraying mechanism 70 has at least one spraying pipe 701, the spraying pipe 701 is connected to the housing 105 and communicated with the interior of the housing 105, and a spray head is arranged at the end of the spraying pipe 701 located in the housing 105.

In this embodiment, the truss mechanism 201 is provided with a storage tank and a pump body, the storage tank is used for storing the release agent, the release agent is introduced into the spray pipes 701 through the pump body, the spray pipes 701 are multiple, and the multiple spray pipes 701 are connected to the housings 105 and are communicated with the interiors of the housings 105. After polishing and dedusting, the spraying mechanism 70 sprays the release agent on the inner mold, so that the polishing function, the dust suction function and the spraying function are integrated on the inner mold polishing and spraying equipment.

The present invention is not intended to be limited to the particular embodiments shown and described, but is to be accorded the widest scope consistent with the principles and novel features herein disclosed.

Claims

1. The utility model provides an centre form spraying equipment of polishing which characterized in that includes:

a grinding mechanism (10) having a grinding brush (104), the grinding brush (104) being used for grinding the surface of the workpiece (80) to be ground;

the grinding mechanism (10) is movably connected with the supporting mechanism, and the grinding mechanism (10) can drive the grinding brush (104) to move to grind the surface of the workpiece (80) to be ground when moving relative to the supporting mechanism (20);

the grinding mechanism (10) comprises a cover shell (105), and the cover shell (105) is movably connected to the supporting mechanism (20); the polishing brush (104) is arranged in the housing (105), one side of the housing (105) is arranged in an opening, and a brush head of the polishing brush (104) extends out of the opening;

the internal mold polishing and spraying equipment further comprises a dust suction mechanism (60), and the dust suction mechanism (60) is arranged on the supporting mechanism (20); the dust suction mechanism (60) is provided with at least one dust suction pipeline (601), and the dust suction pipeline (601) is connected to the housing (105) and communicated with the interior of the housing (105);

the internal mold grinding and spraying equipment further comprises a spraying mechanism (70), and the spraying mechanism (70) is arranged on the supporting mechanism (20); the spraying mechanism (70) is provided with at least one spraying pipeline (701), the spraying pipeline (701) is connected to the housing (105) and communicated with the interior of the housing (105), and a spray head is arranged at the end part of the spraying pipeline (701) located in the housing (105).

2. The internal mold grinding and spraying apparatus as claimed in claim 1, wherein:

the supporting mechanism (20) comprises a truss mechanism (201) and a traveling mechanism (202), the grinding mechanism (10) is movably connected to the truss mechanism (201), the truss mechanism (201) is supported on the traveling mechanism (202), and the traveling mechanism (202) is used for driving the truss mechanism (201) to move along the set direction of the surface.

3. The internal mold grinding and spraying apparatus as claimed in claim 1 or 2, wherein:

the grinding mechanism (10) at least comprises a first grinding mechanism (101) and a second grinding mechanism (102), and the first grinding mechanism (101) and the second grinding mechanism (102) are movably connected to the supporting mechanism (20);

the surface comprises at least a first surface (801) and a second surface (802) arranged at an angle, the first grinding mechanism (101) is used for grinding the first surface (801), and the second grinding mechanism (102) is used for grinding the second surface (802).

4. The internal mold grinding and spraying apparatus as claimed in claim 3, wherein:

the internal mold grinding and spraying equipment further comprises a first connecting mechanism (30), wherein the first connecting mechanism (30) comprises at least one first linear driving mechanism (301); the fixing portion of the first linear driving mechanism (301) is connected to the supporting mechanism (20), and the driving portion of the first linear driving mechanism (301) is connected to the first polishing mechanism (101) so as to drive the first polishing mechanism (101) to be close to or far away from the first surface (801).

5. The internal mold grinding and spraying apparatus as claimed in claim 4, wherein:

the first connecting mechanism (30) further comprises a connecting beam (302), the connecting beam (302) is parallel to and connected to the first grinding mechanism (101), and a driving part of the first linear driving mechanism (301) is rotatably connected to the connecting beam (302).

6. The internal mold grinding and spraying apparatus as claimed in claim 5, wherein:

the driving part of the first linear driving mechanism (301) is connected with the connecting beam (302) in a rotating mode through a ball head.

7. The internal mold grinding and spraying apparatus as claimed in claim 3, wherein:

the internal mold grinding and spraying equipment further comprises a second connecting mechanism (40), wherein the second connecting mechanism (40) comprises at least one second linear driving mechanism (401); the fixed part of the second linear driving mechanism (401) is connected to the supporting mechanism (20), and the driving part of the second linear driving mechanism (401) is connected to the second grinding mechanism (102) so as to drive the second grinding mechanism (102) to be close to or far away from the second surface (802).

8. The internal mold grinding and spraying apparatus as claimed in claim 7, wherein:

the second connecting mechanism (40) further comprises a guide mechanism (402), and the guide mechanism (402) comprises a guide sliding rail (4021) and a guide bracket (4022); the guide sliding rail (4021) is arranged on the supporting mechanism (20), and the guide bracket (4022) is slidably supported on the guide sliding rail (4021); the driving part of the second linear driving mechanism (401) is connected to one end of the guide support (4022), and the second grinding mechanism (102) is connected to the other end, opposite to the one end, of the guide support (4022).

9. The internal mold grinding and spraying apparatus as claimed in claim 3, wherein:

the first grinding mechanism (101) comprises a main grinding part (1011) and an auxiliary grinding part (1012), the auxiliary grinding part (1012) is hinged to the main grinding part (1011), and the main grinding part (1011) and the auxiliary grinding part (1012) are both provided with the grinding brush (104);

the first surface (801) comprises a main surface (8011) and an edge surface (8012) connected to the main surface (8011), the edge surface (8012) and the main surface (8011) being arranged at an angle; the main sanding part (1011) is used for sanding the main surface (8011), and the auxiliary sanding part (1012) is used for sanding the edge surface (8012).

10. The internal mold grinding and spraying apparatus as claimed in claim 3, wherein:

the first grinding mechanism (101) and the second grinding mechanism (102) are hinged or disconnected.