Preform dust removal device

Abstract

Disclosed in the present disclosure is a preform dust removal device. The preform dust removal device comprises a turret, a dust collection box, and a dust removal assembly with an air blowing tube, wherein the dust removal assembly is mounted on the turret, the dust collection box is located on one side of the turret, a preform clamping ring is provided on the turret, a guide ring located above the preform clamping ring is further provided on the turret, and the air blowing tube passes through the guide ring; the dust collection box is provided with a dust collection cavity with a constant height and a suction inlet in communication with the dust removal cavity, and the height of the suction inlet is the same as that of the dust collection cavity; a guide face with an arc-shaped axial cross-section is provided at the bottom of the guide ring, and an area between an upper surface of the preform clamping ring and the guide face is in direct communication with the suction inlet. In the present disclosure, the height of the dust collection cavity is set to be constant and consistent with that of the suction inlet, such that when waste gas enters the dust collection cavity from the suction inlet and flows in the dust collection cavity, a gas flow is stable during flowing, turbulence cannot be generated during flowing, smooth flowing of the waste gas in the dust collection cavity is prevented from being affected by the turbulence, the dust collection box can stably collect dust, and the dust collection effect is improved.

Description

A bottle blank dust removal device

[0001] Cross-reference to related disclosures

[0002] The present disclosure claims priority to the Chinese patent publication with the application number 2024104481875 and the title "A bottle blank dust removal device" filed on April 15, 2024 with the China Patent Office, the entire content of which is incorporated herein by reference. TECHNICAL FIELD

[0003] The present disclosure belongs to the field of dust removal equipment, and particularly relates to a bottle blank dust removal device. BACKGROUND

[0004] In the field of aseptic filling, especially the aseptic filling technology based on blow-fill-seal integrated equipment, the pre-treatment of bottle blanks is very important, and the dust removal of bottle blanks in the pre-treatment is particularly crucial.

[0005] At present, in the prior art, a blowing dust removal structure is usually arranged on a rotating conveying mechanism, such as the technical solution recorded in the published patent with the application number 201810143519.3 (publication date: August 24, 2018, and patent name: Internal dust removal device and dust removal method for at least one preform). In the patent document, it is recorded that the opening 18 of the bottle blank is communicated with the nozzle 128 of the suction device 120 through the capturing device 130. During work, the injection pipe 110 continuously blows air to the inside bottom of the bottle blank, and at the same time, the suction device 120 generates negative pressure. Based on the pressure difference factor, the nozzle 128 is driven to suck the exhaust gas from the inside of the bottle blank into the cavity 132 of the capturing device 130, and the exhaust gas finally enters the inside of the suction device 120 to collect the exhaust gas discharged from the bottle blank.

[0006] However, in the technical solution, the following shortcomings exist: 1. The cavity 132 on the capturing device 130 is in the shape of a channel with both ends ventilated, one end covers the neck 14 of the bottle blank to communicate with the opening 18, and the other end is aligned with and communicated with the nozzle 128. In order to continue the negative pressure environment of the nozzle 128, it serves as a transition piece between the opening 18 of the bottle blank and the nozzle 128, which increases the time required for the exhaust gas and the dust carried by the exhaust gas to diffuse into the inside of the suction device 120; 2. The inner diameter of the nozzle 128 of the suction device 120 and the inner diameter of the cavity 132 are relatively small. Such a design makes the exhaust gas flow at high speed when passing through the cavity 132 and the nozzle 128. The inside space of the suction device 120 as a dust collection area has a relatively large volume. Therefore, when the exhaust gas flows from the nozzle 128 into the inside space of the suction device 120, the high-speed gas flow will generate turbulence at the outlet of the nozzle 128, which will hinder the subsequent exhaust gas flowing from the nozzle 128 into the inside of the suction device 120, resulting in that the exhaust gas cannot flow smoothly in the suction device 120.

[0007] DISCLOSURE

[0008] The technical problem to be solved by the present disclosure is to provide a bottle blank dust removal device to solve the problem of poor flow of waste gas flowing out of the bottle blank in the dust collection box.

[0009] To solve the above technical problems, the present disclosure adopts the following technical solutions: a bottle blank dust removal device, comprising a rotating disc, a dust collection box, and a dust removal assembly with a blowing pipe, the dust removal assembly is installed on the rotating disc, the dust collection box is located on one side of the rotating disc, the rotating disc is provided with a blank clamping ring, and the rotating disc is also provided with a guide ring located above the blank clamping ring, the blowing pipe passes through the guide ring and is arranged, the dust collection box has a dust collection cavity with constant height and a suction inlet communicating with the dust collection cavity, the suction inlet is distributed in an arc shape along the edge of the guide ring, and the height of the suction inlet is the same as the height of the dust collection cavity, the bottom of the guide ring is provided with a guide surface with an arc-shaped cross section, the guide surface is continuously distributed around the center line of the rotating disc and in a ring shape, one side of the guide surface extends to the suction inlet, and the other side of the guide surface extends to the blank clamping ring, and the area between the upper surface of the blank clamping ring and the guide surface directly communicates with the suction inlet.

[0010] In the above-mentioned bottle blank dust removal device, the side of the dust collection box away from the rotating disc is provided with an air extraction hole, and the width of the dust collection cavity gradually decreases in the direction from the suction inlet to the air extraction hole.

[0011] In the above-mentioned bottle blank dust removal device, the arc of the suction inlet is α, and 90°<α<180° is satisfied.

[0012] In the above-mentioned bottle blank dust removal device, the arc of the guide surface is 90 degrees.

[0013] In the above-mentioned bottle blank dust removal device, a plurality of clamping openings configured to clamp the bottle blank are arranged on the blank clamping ring, a through hole corresponding to the clamping opening is arranged on the guide ring, and the blowing pipe passes through the through hole to pass through the guide ring to remove dust from the bottle blank clamped on the clamping opening.

[0014] In the above-mentioned bottle blank dust removal device, the rotating disc comprises a center disc provided with an annular positioning rib on the outer side wall and a rotating shaft driving the center disc to rotate, the guide ring and the blank clamping ring are sleeved on the outer circumferential side of the center disc and abut the upper and lower sides of the annular positioning rib respectively, and the guide ring and the blank clamping ring are fixedly connected with the center disc through bolts.

[0015] In the above-mentioned bottle blank dust removal device, the dust removal assembly comprises a lifting mechanism and a dust removal mechanism with a blowing pipe, the lifting mechanism comprises a three-dimensional cam arranged below the rotating disc and a lifting rod penetrating through the rotating disc, the top of the three-dimensional cam has a cam surface, the top of the lifting rod is connected with the dust removal mechanism, the bottom of the lifting rod abuts the cam surface, and the lifting rod rotates with the rotating disc to drive the dust removal mechanism to move up and down under the pushing of the cam surface with changing height.

[0016] In the bottle blank dust removal device, the lifting mechanism further comprises a sleeve fixed on the rotating disc, the sleeve is arranged through the rotating disc, the lifting rod is arranged through the sleeve, and an elastic member located below the sleeve is further sleeved on the lifting rod, the elastic member is in abutment with the sleeve and the lifting rod respectively, so that the bottom of the lifting rod is pressed tightly on the cam surface.

[0017] The present disclosure has the following beneficial effects:

[0018] A bottle blank dust removal device comprises a rotating disc, a dust collection box and a dust removal assembly with a blowing pipe, the dust removal assembly is installed on the rotating disc, the dust collection box is located on one side of the rotating disc, a blank clamping ring is arranged on the rotating disc, a guide ring is further arranged above the blank clamping ring, the blowing pipe is arranged through the guide ring, the dust collection box has a dust collection cavity with constant height and a suction inlet in communication with the dust collection cavity, the suction inlet is arranged in an arc shape along the edge of the guide ring, the height of the suction inlet is the same as the height of the dust collection cavity, the bottom of the guide ring is provided with a guide surface with an arc-shaped cross section, the guide surface is continuously distributed around the center line of the rotating disc and in a ring shape, one side of the guide surface extends to the suction inlet, and the other side of the guide surface extends to the blank clamping ring, the area between the upper surface of the blank clamping ring and the guide surface is directly communicated with the suction inlet. The technical scheme has the following technical effects:

[0019] The present disclosure guides the waste gas by arranging the guide ring and the guide surface at the bottom of the guide ring, so that the guide surface and the open area on the top surface of the blank clamping ring are directly communicated with the suction inlet, the blowing pipe passing through the guide ring extends into the bottle blank and blows air towards the bottom of the inner surface of the bottle blank, the air flow flows from the bottom of the bottle blank to the top of the bottle blank, carries away the dust inside the bottle blank to form waste gas, and flows out from the bottle mouth at the top to the open area formed by the guide surface and the top surface of the blank clamping ring, and a negative pressure is formed in the dust collection cavity. Because the open area formed by the guide surface and the top surface of the blank clamping ring is directly communicated with the suction inlet, the dust collection box can directly suck away the waste gas flowing out from the bottle mouth of the bottle blank through the suction inlet, the dust collection path is short, and because the guide surface is arranged in an arc shape, the waste gas can be guided to flow towards the suction inlet, so the time for the waste gas to enter the dust collection box can also be shortened. By arranging the dust collection cavity with constant height and the same height as the suction inlet, the air flow is stable during the entire flow process when the waste gas enters the dust collection cavity through the suction inlet and flows in the dust collection cavity, and no turbulent flow is generated during the flow process, thereby avoiding the influence of turbulent flow on the smooth flow of the waste gas in the dust collection cavity, so that the dust collection box can stably collect dust and improve the dust collection effect.

[0020] The dust collecting box is provided with an air exhaust hole on the side away from the rotating disc, and the width of the dust collecting cavity gradually decreases in the direction from the air inlet to the air exhaust hole. The air exhaust hole can exhaust the waste gas in the dust collecting cavity and maintain the negative pressure state in the dust collecting cavity. The width of the dust collecting cavity gradually decreases in the direction from the air inlet to the air exhaust hole, so that the longitudinal sectional area of the dust collecting cavity gradually decreases along the flow direction of the gas. Thus, when the waste gas flows in the dust collecting cavity, the flow rate gradually increases in the direction from the air inlet to the air exhaust hole, so that the waste gas in the dust collecting cavity is quickly exhausted from the air exhaust hole, avoiding the accumulation of waste gas in the dust collecting cavity affecting the subsequent entry of waste gas.

[0021] The arc of the air inlet is a, and satisfies 90°<a<180°. In order to fully cover the area of the bottle blank into which the air inlet of the rotating disc extends, the air inlet can fully cover the area of the bottle blank into which the air inlet of the rotating disc extends, so that the dust collecting effect is good, the arc is not too small to cause poor dust collecting effect of the dust collecting box, and the arc is not too large to cause the dust collecting box to occupy too much space and have large installation difficulty with the rotating disc.

[0022] The arc of the guide surface is 90 degrees, so that the tangent line at the joint of the guide surface and the dust collecting box extends horizontally, so that the waste gas guided by the guide surface smoothly enters the air inlet, and the tangent line at the position closest to the blank clamping ring of the guide surface extends vertically, so that the upward waste gas flowing out of the bottle mouth of the bottle blank is directly guided, and the flow of the waste gas from the bottle blank to the air inlet is more smooth.

[0023] The blank clamping ring is provided with a plurality of clamping openings configured to clamp the bottle blank, and the guide ring is provided with through holes corresponding to the clamping openings one by one. The air blowing pipe passes through the through holes to pass through the guide ring to clean the bottle blank clamped in the clamping opening. The through holes allow the guide ring to avoid the air blowing pipe, and prevent the guide ring from reserving too much space to avoid the escape of waste gas from the space, ensuring that the waste gas is collected by the dust collecting box.

[0024] The rotating disc includes a center disc provided with an annular positioning rib on the outer side wall and a rotating shaft driving the center disc to rotate. The guide ring and the blank clamping ring are sleeved on the outer circumferential side of the center disc and abut the upper and lower sides of the annular positioning rib, respectively. The guide ring and the blank clamping ring are fixedly connected with the center disc by bolts. By separately arranging the center disc, the guide ring and the blank clamping ring and fixing them by bolts, the production and assembly are facilitated, and the guide ring or the blank clamping ring can be replaced individually when they are damaged, thereby reducing the maintenance cost.

[0025] The dust removal assembly comprises a lifting mechanism and a dust removal mechanism with a blowing pipe. The lifting mechanism comprises a three-dimensional cam provided below the rotating disc and a lifting rod penetrating through the rotating disc. The top of the three-dimensional cam is provided with a cam surface. The top of the lifting rod is connected with the dust removal mechanism. The bottom of the lifting rod is abutted with the cam surface. The lifting rod rotates with the rotating disc to drive the dust removal mechanism to move up and down under the pushing of the cam surface with changing height. When the central disc rotates, the lifting rod rotates with the central disc. The bottom of the lifting rod rises or falls under the pushing of the cam surface with changing height, thereby driving the dust removal mechanism to move up and down, so that the dust removal mechanism extends into or leaves the bottle blank. When the lifting rod rotates with the central disc to the area opposite to the dust collection box, the bottom of the lifting rod is just at the lower part of the cam surface, so that the blowing pipe extends into the bottle blank. The dust collection box can collect the waste gas blown out of the bottle blank. The structure is simple, and the dust removal effect is good.

[0026] The lifting mechanism further comprises a sleeve fixed on the rotating disc. The sleeve penetrates through the rotating disc. The lifting rod penetrates through the sleeve. The lifting rod is further sleeved with an elastic member below the sleeve. The elastic member is abutted with the sleeve and the lifting rod respectively, so as to press the bottom of the lifting rod on the cam surface. The lifting rod penetrates through the sleeve, so as to avoid the direct contact between the lifting pipe and the central disc and the abrasion between the lifting rod and the central disc during the lifting process. The top of the elastic member is abutted with the sleeve, and the bottom of the elastic member is abutted with the lifting rod, so as to press the bottom of the lifting rod on the cam surface, thereby ensuring the stable pushing of the cam surface on the lifting rod during the rotation of the central disc, and further ensuring the stable rising and falling of the blowing pipe and the dust removal effect.

[0027] The features and advantages of the present disclosure will be described in detail in the following specific embodiments, drawings. BRIEF DESCRIPTION OF DRAWINGS

[0028] The present disclosure will be further described in conjunction with the drawings and specific embodiments:

[0029] Fig. 1 is a perspective view of a bottle blank dust removal device;

[0030] Fig. 2 is a sectional view of the bottle blank dust removal device;

[0031] Fig. 3 is an enlarged view of part A of Fig. 2.

[0032] Reference signs: 100, rotating disc; 110, central disc; 111, annular positioning rib; 112, mounting hole; 120, rotating shaft; 200, dust collection box; 210, dust collection cavity; 220, suction inlet; 230, air suction hole; 300, dust removal assembly; 310, lifting mechanism; 311, three-dimensional cam; 3111, cam surface; 312, lifting rod; 313, sleeve; 314, elastic member; 320, dust removal mechanism; 321, blowing pipe; 400, blank clamping ring; 410, clamping opening; 500, guide ring; 510, guide surface; 520, through hole. DETAILED DESCRIPTION

[0033] The dust removal device for bottle preforms provided by the present disclosure comprises a rotating disc, a dust collection box and a dust removal assembly with a blowing pipe, the dust removal assembly is installed on the rotating disc, the dust collection box is located on one side of the rotating disc, the rotating disc is provided with a preform clamping ring, and the rotating disc is further provided with a guide ring located above the preform clamping ring, the blowing pipe passes through the guide ring and is arranged, the dust collection box has a dust collection cavity with a constant height and a suction inlet in communication with the dust collection cavity, the suction inlet is distributed in an arc shape along the edge of the guide ring, and the height of the suction inlet is the same as the height of the dust collection cavity, the bottom of the guide ring is provided with a guide surface with an arc-shaped cross section, the guide surface is continuously distributed around the center line of the rotating disc and in a ring shape, one side of the guide surface extends to the suction inlet, and the other side of the guide surface extends to the preform clamping ring, and the area between the upper surface of the preform clamping ring and the guide surface is directly in communication with the suction inlet. The present disclosure guides the waste gas by arranging the guide ring and the guide surface at the bottom of the guide ring, so that the open area between the guide surface and the top surface of the preform clamping ring is directly in communication with the suction inlet, the blowing pipe passing through the guide ring extends into the bottle preform and blows towards the bottom of the inner surface of the bottle preform, the airflow flows from the bottom of the bottle preform to the top of the bottle preform, carries away the dust inside the bottle preform to form waste gas, and flows out from the bottle mouth at the top to the open area formed by the guide surface and the top surface of the preform clamping ring, and a negative pressure is formed in the dust collection cavity. Because the open area formed by the guide surface and the top surface of the preform clamping ring is directly in communication with the suction inlet, the dust collection box can directly suck away the waste gas flowing out from the bottle mouth of the bottle preform through the suction inlet, the dust collection path is short, and because the guide surface is arranged in an arc shape, the waste gas can be guided to flow towards the suction inlet, so the time for the waste gas to enter the dust collection box can be shortened. By arranging the dust collection cavity to have a constant height and the same height as the suction inlet, the airflow is stable during the flowing process of the waste gas entering the dust collection cavity through the suction inlet and flowing in the dust collection cavity, and no turbulent flow is generated during the flowing process, thereby avoiding the influence of the turbulent flow on the smooth flowing of the waste gas in the dust collection cavity, so that the dust collection box can stably collect dust and improve the dust collection effect.

[0034] The technical solutions of the embodiments of the present disclosure will be explained and described below in combination with the drawings of the embodiments of the present disclosure. However, the following embodiments are only optional embodiments of the present disclosure, not all. Based on the embodiments in the embodiments, other embodiments obtained by those skilled in the art without creative labor also belong to the protection scope of the present disclosure.

[0035] In the description of the present disclosure, it needs to be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "clockwise" and "counterclockwise" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the purpose of facilitating the description of the present disclosure and simplifying the description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the present disclosure.

[0036] In addition, the terms "first", "second" are only for descriptive purpose, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the technical features indicated. Therefore, the features defined with "first", "second" can explicitly or implicitly include one or more of the features. In the description of the present disclosure, unless otherwise stated, the meaning of "a plurality of" is two or more, unless otherwise explicitly limited.

[0037] In the present disclosure, unless otherwise explicitly specified and limited, the terms "mounting", "connecting", "connecting" and "fixing" and the like should be understood broadly, for example, can be fixedly connected, can be detachably connected, or integrally connected; can be mechanically connected, or electrically connected; can be directly connected, or indirectly connected through an intermediate medium, or can be the communication inside two elements. For those skilled in the art, the specific meaning of the above terms in the present disclosure can be understood according to the specific circumstances.

[0038] In the present disclosure, unless otherwise explicitly specified and limited, the first feature "on" or "under" the second feature can include that the first and second features are in direct contact, or that the first and second features are not in direct contact but are in contact through another feature between them. Moreover, the first feature "on", "above" and "on" the second feature includes that the first feature is directly above and obliquely above the second feature, or only indicates that the first feature is higher than the second feature in horizontal height. The first feature "under", "below" and "below" the second feature includes that the first feature is directly below and obliquely below the second feature, or only indicates that the first feature is lower than the second feature in horizontal height.

[0039] A kind of bottle blank dust removal device, as shown in figure 1 to 3, including carousel 100, dust collection box 200 and dust removal component 300, carousel 100 is equipped with card blank ring 400, carousel 100 is conveyed bottle blank on card blank ring 400 by rotation, dust removal component 300 is installed on carousel 100, with the blowing pipe 321 being configured to blow bottle blank inside, to be configured to blow out the dust inside bottle blank, dust collection box 200 is located at the side of carousel 100, to be configured to collect the waste gas (i.e. gas carrying dust) blown out bottle blank. Carousel 100 is also equipped with guide ring 500, guide ring 500 is located above card blank ring 400, blowing pipe 321 is set through guide ring 500, dust collection box 200 has dust collection cavity 210 and suction port 220, suction port 220 is equipped with dust collection box 200 one side and is communicated with dust collection cavity 210, the height of dust collection cavity 210 is constant, the height of suction port 220 is same with the height of dust collection cavity 210, the side of dust collection box 200 with suction port 220 is matched with the edge of guide ring 500, to make suction port 220 along the edge of guide ring 500 arc distribution.In the bottom of guide ring 500, guide surface 510 is equipped, guide surface 510 is continuously distributed around the center line of carousel 100 and is annular, as shown in figure 2, in the axial section view of carousel 100, guide surface 510 is concave to guide ring 500 and is arranged in arc, one side of guide surface 510 extends to suction port 220 of dust collection box 200, the other side of guide surface 510 extends to card blank ring 400, the area between guide surface 510 and the upper surface of card blank ring 400 is directly communicated with suction port 220. Optionally, the radian of guide surface 510 is 90 degrees, the tangent of guide surface 510 and dust collection box 200 abutment place extends horizontally, so that the waste gas that passes through guide surface 510 guide can smoothly enter suction port 220, the tangent of guide surface 510 closest to card blank ring 400 extends vertically, so that the upward waste gas that flows from the bottle mouth of bottle blank is directly guided, so that the flow of waste gas from bottle blank to suction port 220 is more smooth.

[0040] The disclosure guides the waste gas by setting the guide ring 500 and the guide surface 510 at the bottom of the guide ring 500, so that the guide surface 510 and the open area on the top surface of the blank clamping ring 400 are directly communicated with the suction port 220, the air blowing pipe 321 passing through the guide ring 500 extends into the bottle blank to blow air towards the bottom of the inner surface of the bottle blank, the air flow flows from the bottom of the bottle blank to the upper part of the bottle blank, carries away the dust inside the bottle blank to form waste gas, and flows out from the bottle mouth at the top to the open area formed by the guide surface 510 and the top surface of the blank clamping ring 400, at the same time, a negative pressure is formed in the dust collecting cavity 210, because the open area formed by the guide surface 510 and the top surface of the blank clamping ring 400 is directly communicated with the suction port, the dust collecting box 200 can directly suck the waste gas flowing out from the bottle mouth of the bottle blank through the suction port 220, the dust collecting path is short, and because the guide surface 510 is arranged in an arc shape, the waste gas can be guided to flow towards the suction port 220, so the time for the waste gas to enter the dust collecting box 200 can also be shortened. By setting the dust collecting cavity 210 to have a constant height and the height being consistent with the suction port 220, the air flow is stable during the whole flow process when the waste gas flows into the dust collecting cavity 210 through the suction port 220 and flows in the dust collecting cavity 210, so that turbulence is avoided during the flow process, which avoids the influence of turbulence on the smooth flow of the waste gas in the dust collecting cavity 210, so that the dust collecting box 200 can stably collect dust and improve the dust collecting effect.

[0041] As shown in FIG. 1, the dust collecting box 200 in the embodiment is provided with an air exhaust hole 230 on the side away from the rotating disc 100, and a turbine or other air exhaust assembly is connected to the air exhaust hole 230 to quickly exhaust the waste gas in the dust collecting cavity 210 through the air exhaust hole 230, so as to maintain the negative pressure state in the dust collecting box. Optionally, the air exhaust hole 230 is arranged at the top of the dust collecting box 200, and the width of the dust collecting cavity 210 gradually decreases from the suction port 220 to the air exhaust hole 230, that is, the longitudinal cross-sectional area of the dust collecting cavity 210 along the flow direction of the gas gradually decreases, so that the flow rate of the waste gas gradually increases from the suction port 220 to the air exhaust hole 230 when the waste gas flows in the dust collecting cavity 210, so as to quickly exhaust the waste gas in the dust collecting cavity 210 through the air exhaust hole 230, and avoid the accumulation of waste gas in the dust collecting cavity 210 affecting the subsequent entry of waste gas.

[0042] The blank clamping ring 400 in the embodiment is provided with a plurality of clamping holes 410, and the bottle blanks are clamped on each clamping hole 410 for transmission. The guide ring 500 is provided with a through hole 520, and the through hole 520 corresponds to each clamping hole 410. The air blowing pipe 321 passes through the through hole 520 to pass through the guide ring 500, so as to extend into the bottle blank to remove dust from the bottle blank clamped on the clamping hole 410. The arrangement of the through hole 520 enables the guide ring 500 to avoid the air blowing pipe 321, and avoids the guide ring 500 reserving too large a space for avoiding the air blowing pipe 321, so as to prevent the waste gas from escaping from the space and ensure that the waste gas is collected by the dust collecting box 200.

[0043] As shown in FIG. 3, in the present embodiment, the rotary disc 100 comprises a center disc 110 and a rotating shaft 120, the center disc 110 is connected at the top of the rotating shaft 120 to jointly move with the rotating shaft 120, an annular positioning rib 111 is arranged on the outer side wall of the center disc 110, the annular positioning rib 111 is coaxial with the center disc 110 and is integrally arranged at the middle of the outer side wall of the center disc 110, a guide ring 500 and a clamp ring 400 are sleeved on the outer circumferential side of the center disc 110, the guide ring 500 is located above the annular positioning rib 111, the bottom of the guide ring 500 abuts against the top surface of the annular positioning rib 111, the clamp ring 400 is located below the annular positioning rib 111, the top of the clamp ring 400 abuts against the bottom surface of the annular positioning rib 111, the guide ring 500 and the clamp ring 400 are fixedly connected with the center disc 110 through bolts, so that when the rotating shaft 120 drives the center disc 110 to rotate, the guide ring 500 and the clamp ring 400 jointly rotate with the center disc 110, by separately arranging the center disc 110, the guide ring 500 and the clamp ring 400 and fixing them through bolts, it is convenient for production and assembly, meanwhile, when the guide ring 500 or the clamp ring 400 is damaged, the guide ring 500 or the clamp ring 400 can be individually replaced, thereby reducing the maintenance cost.

[0044] In the embodiment, as shown in FIG. 2, the dust removal assembly 300 comprises a lifting mechanism 310 and a dust removal mechanism 320. The lifting mechanism 310 comprises a three-dimensional cam 311 and a lifting rod 312. The three-dimensional cam 311 is sleeved on the outer circumferential side of the rotating shaft 120 below the rotating disc 100. The three-dimensional cam 311 is kept fixed and does not rotate together with the rotating shaft 120. A cam surface 3111 is arranged on the top of the three-dimensional cam 311. The height of the cam surface 3111 changes along the circumference of the three-dimensional cam 311. An installation hole 112 is arranged on the center disc 110 and penetrates the center disc 110 longitudinally. The lifting rod 312 is sleeved in the installation hole 112 and can move up and down along the axial direction of the installation hole 112. The top of the lifting rod 312 is above the center disc 110 and is connected with the dust removal mechanism 320. The dust removal mechanism 320 has a blowing pipe 321. The bottom of the lifting rod 312 is below the center disc 110 and abuts against the cam surface 3111. When the center disc 110 rotates, the lifting rod 312 rotates together with the center disc 110. The bottom of the lifting rod 312 is pushed up or down by the cam surface 3111 with changing height, thereby driving the dust removal mechanism 320 to move up and down, so that the dust removal mechanism 320 extends into or leaves the inside of the bottle blank. When the lifting rod 312 rotates with the center disc 110 to the area close to the dust collection box 200, the bottom of the lifting rod 312 is just at the lower part of the cam surface 3111, so that the blowing pipe 321 extends into the inside of the bottle blank, and the dust collection box 200 can collect the waste gas blown out of the bottle blank, and the dust removal effect is good. In order to avoid the abrasion between the lifting rod 312 and the center disc 110 during the lifting process, the lifting mechanism 310 in the embodiment further comprises a pipe sleeve 313 fixed on the rotating disc 100. The pipe sleeve 313 is sleeved in the installation hole 112, and the lifting rod 312 is sleeved in the pipe sleeve 313, so as to avoid the direct contact between the lifting pipe and the center disc 110. The lifting rod 312 is further sleeved with an elastic member 314 below the pipe sleeve 313. The top of the elastic member 314 abuts against the pipe sleeve 313, and the bottom of the elastic member 314 abuts against the lifting rod 312, so as to press the bottom of the lifting rod 312 against the cam surface 3111, ensure the stable pushing of the cam surface 3111 to the lifting rod 312 during the rotation of the center disc 110, and further ensure the stable rising and falling of the blowing pipe 321, and ensure the dust removal effect.

[0045] The radian of the suction port 220 in the embodiment is α, and 90°<α<180° is satisfied, so that the suction port 220 fully covers the area in which the air blowing pipe 321 on the turntable 100 extends into the preform, that is, the suction port 220 can fully cover the area of the preform in which the waste gas blown by the air blowing pipe is sucked, the dust collection effect is good, the radian is too small to cause poor dust collection effect of the dust collection box 200, and the radian is too large to cause the dust collection box 200 to occupy too much space and the installation difficulty between the dust collection box 200 and the turntable 100 to be large. In an implementable manner, α is 136 degrees. The setting of the angle can cover the area in which the air blowing pipe 321 extends into the preform, and also avoid the dust collection box 200 being too large and reducing the production and processing cost.

[0046] The above is only an optional embodiment of the present disclosure, and the protection scope of the present disclosure is not limited to the above-mentioned embodiments. Any technical solution that belongs to the technical solution of the present disclosure should be considered as the protection scope of the present disclosure. It should be noted that, for ordinary technical personnel in the technical field, some improvements and decorations without departing from the principles of the present disclosure should also be considered as the protection scope of the present disclosure. Industrial applicability

[0047] By using the above scheme, when the waste gas enters the dust collection cavity through the suction port and flows in the dust collection cavity, the flow process is stable, and no turbulent flow is generated in the flow process, thereby avoiding the influence of the turbulent flow on the smooth flow of the waste gas in the dust collection cavity, so that the dust collection box can stably collect dust and improve the dust collection effect.

Claims

1. A bottle blank dust removal device, comprising a rotating disc, a dust collection box and a dust removal assembly with a blowing pipe, the dust removal assembly is installed on the rotating disc, the dust collection box is located on one side of the rotating disc, and a blank clamping ring is arranged on the rotating disc, characterized in that: The rotary disc is further provided with a guide ring above the clamping ring, the blowing pipe is arranged through the guide ring, the dust collecting box has a dust collecting cavity with constant height and a suction inlet communicated with the dust collecting cavity, the suction inlet is arranged in arc shape along the edge of the guide ring, the height of the suction inlet is the same as the height of the dust collecting cavity, the bottom of the guide ring is provided with a guide surface in arc shape in cross section, the guide surface is continuously distributed around the center line of the rotary disc and in ring shape, one side of the guide surface extends to the suction inlet, the other side of the guide surface extends to the clamping ring, and the area between the upper surface of the clamping ring and the guide surface is directly communicated with the suction inlet.

2. A bottle blank dust removal apparatus according to claim 1, characterized by: The dust collecting box is provided with an air extraction hole away from the rotary disc, and the width of the dust collecting cavity gradually decreases in the direction from the suction inlet to the air extraction hole.

3. A bottle blank dust removal apparatus according to claim 1 or 2, characterized in that: The arc of the suction inlet is α, and 90° < α < 180° is satisfied.

4. A bottle blank dust removal apparatus according to any one of claims 1 to 3, characterized in that: The arc of the guide surface is 90 degrees.

5. A bottle blank dust removal apparatus according to any one of claims 1 to 4, characterized in that: The clamping ring is provided with a plurality of clamping openings configured to clamp the bottle blank, the guide ring is provided with through holes corresponding to the clamping openings one by one, and the blowing pipe passes through the through holes to blow off dust from the bottle blank clamped on the clamping openings.

6. A bottle blank dust removal apparatus according to any one of claims 1 to 5, characterized in that: The rotary disc comprises a center disc provided with an annular positioning rib on the outer side wall and a rotating shaft driving the center disc to rotate, the guide ring and the clamping ring are sleeved on the outer periphery side of the center disc and abut against the upper and lower sides of the annular positioning rib respectively, and the guide ring and the clamping ring are fixedly connected with the center disc through bolts.

7. A bottle blank dust removal apparatus according to any one of claims 1 to 6, characterized in that: The dust removing assembly comprises a lifting mechanism and a dust removing mechanism provided with a blowing pipe, the lifting mechanism comprises a three-dimensional cam arranged below the rotary disc and a lifting rod arranged through the rotary disc, the top of the three-dimensional cam is provided with a cam surface, the top of the lifting rod is connected with the dust removing mechanism, the bottom of the lifting rod abuts against the cam surface, and the lifting rod rotates with the rotary disc to drive the dust removing mechanism to move up and down under the pushing of the cam surface with variable height.

8. A bottle blank dust removal apparatus according to claim 7, characterized by: The lifting mechanism further comprises a sleeve fixed on the rotary disc, the sleeve is arranged through the rotary disc, the lifting rod is arranged in the sleeve, and the lifting rod is further sleeved with an elastic member below the sleeve, the elastic member abuts against the sleeve and the lifting rod respectively to press the bottom of the lifting rod against the cam surface.

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