Bottle bottom forming system
By combining heating, grinding, and polishing devices, the problem of poor grinding effect of the vial bottom grinding mechanism was solved, achieving high-precision forming of the vial bottom and improving the smoothness and concavity of the vial bottom.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- 湖南洪康新材料科技有限公司
- Filing Date
- 2025-06-04
- Publication Date
- 2026-06-05
AI Technical Summary
The existing vial bottom grinding mechanism has poor grinding effect and cannot meet the requirements for the concavity and smoothness of the vial bottom.
A heating device is used to heat the bottom of the bottle to its softening point. Combined with a bottom edge grinding device, a polishing device, a bottom surface grinding device, and an air blowing device, the bottom edge and bottom surface of the bottle are ground and polished respectively. A control device coordinates the operation of each device to improve the grinding accuracy and smoothness.
It effectively removes burrs and scraps from the bottom of the bottle, improves the smoothness and concavity of the bottom, meets molding requirements, and improves the appearance quality of the bottom.
Smart Images
Figure CN224322862U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of bottle forming technology, and in particular to a bottle bottom forming system. Background Technology
[0002] Glass bottles are generally processed by blow molding using molds. After molding, burrs or scraps are easily generated at the parting surface of the mold. Therefore, it is necessary to grind the burrs or scraps to ensure the quality of the glass bottles.
[0003] Chinese utility model patent with publication number CN205817484U discloses a bottle bottom grinding mechanism, including a fixed sleeve installed on the side of the bottle making machine turntable, a movable rod inserted into the fixed sleeve, and a grinding head fixed on the movable rod. A handpiece is sleeved on the top of the movable rod, and the grinding head is connected to the top of the movable rod through a connecting rod. A horizontal limiting rod is provided in the middle of the connecting rod, and a horizontal limiting head that cooperates with the horizontal limiting rod is provided on one side of the fixed sleeve.
[0004] However, although the aforementioned vial bottom grinding mechanism can grind the bottom of the vial, the grinding effect is poor and cannot meet the requirements for the concavity and smoothness of the vial bottom. Utility Model Content
[0005] One of the technical problems to be solved by this utility model is: to solve the problem that the existing bottle bottom grinding mechanism has poor grinding effect and cannot meet the requirements of bottle bottom concavity and smoothness.
[0006] To solve the above-mentioned technical problems, this utility model provides a bottle bottom forming system, including: a heating device for heating the bottle bottom to its softening point; a bottom edge grinding device for grinding the bottom edge of the bottle bottom after it has been heated by the heating device; a polishing device for polishing the bottle bottom after it has been ground by the bottom edge grinding device; a bottom surface grinding device for grinding the bottom surface of the bottle bottom after it has been polished by the polishing device; and an air blowing device for blowing air into the bottle body after the bottle bottom has been polished by the polishing device.
[0007] In some embodiments, the heating device is a flamethrower and is disposed above the bottom of the bottle. The spray direction of the flamethrower forms an angle of 30° to 45° with the horizontal plane where the bottom of the bottle is located, and the distance between the nozzle of the flamethrower and the bottom of the bottle is 5mm to 10mm.
[0008] In some embodiments, the polishing device is a flamethrower, the spray direction of which is perpendicular to the height direction of the bottle, and the nozzle of the flamethrower is at the same height as the bottom of the bottle.
[0009] In some embodiments, the bottom edge grinding device includes: a bottom edge grinding member for grinding the bottom edge; and a driving mechanism for driving the bottom edge grinding member to move closer to or away from the bottom edge.
[0010] In some embodiments, the driving mechanism includes: a first driving structure for driving the bottom edge grinding member to move in a horizontal direction; and a second driving structure for driving the bottom edge grinding member to move in a vertical direction.
[0011] In some embodiments, two bottom edge polishing components are provided, which are respectively disposed on both sides of the bottle body in a horizontal direction. The first driving structure includes: two transmission components, which are respectively connected to the two bottom edge polishing components; and a first driving component, which can drive the two transmission components to move relative to or away from each other, so that the two bottom edge polishing components move closer to or further away from each other.
[0012] In some embodiments, the transmission component includes: a connecting plate, one end of which is connected to the bottom edge grinding component; and a transmission rod, one end of which is connected to the other end of the connecting plate, and the other end of which is provided with a rack; the first driving component includes a driving gear, which is disposed vertically between the transmission rods of the two transmission components and meshes with the racks of the two transmission rods to drive the two bottom edge grinding components to move closer or further away.
[0013] In some embodiments, the bottom surface polishing device includes: a bottom surface polishing member for polishing the bottom surface of the bottle bottom; and a second driving member for driving the bottom surface polishing member to move in a vertical direction.
[0014] In some embodiments, the bottle bottom forming system further includes a control device for controlling the operation of the heating device, the bottom edge grinding device, the polishing device, the bottom surface grinding device, and the air blowing device.
[0015] In some embodiments, the bottle bottom forming system further includes a detection device for detecting the curvature of the bottom edge and the concavity of the bottom surface, and for transmitting the detected data to a control device, which is configured to control the operation of a heating device, a bottom edge grinding device, a polishing device, a bottom surface grinding device, and an air blowing device based on the data.
[0016] Through the above technical solution, the heating device provided by this utility model can heat the bottle bottom to its softening point, so that the bottom edge grinding device can grind the bottle bottom, avoiding damage to the bottle bottom caused by direct grinding of the bottom edge by the bottom edge grinding device, and ensuring the integrity of the bottle bottom; the bottom edge grinding device can grind the bottom edge of the bottle bottom heated to the softening point, grinding the bottom edge without damaging the bottle bottom, removing burrs or scraps from the bottle bottom, and improving the smoothness of the bottom edge; the polishing device can polish the bottle bottom into shape, further improving the smoothness of the bottle bottom, and can maintain the temperature of the bottle bottom to facilitate grinding by the bottom surface grinding device; the bottom surface grinding device and the air blowing device can simultaneously perform bottom surface grinding and internal air blowing on the bottle body, and the bottom surface grinding device can grind the bottom of the bottle bottom. Grinding the bottom surface not only removes burrs or scraps, improving its smoothness, but also adjusts its concavity to meet molding requirements. An air blowing device purifies the inside of the bottle, applying pressure to the bottom. By adjusting the air flow rate, the concavity of the bottom can be adjusted to ensure it meets molding needs. The bottom edge grinding device and bottom surface grinding device grind the bottom edge and bottom surface respectively, improving grinding precision. This invention, through the combined use of a heating device, bottom edge grinding device, polishing device, bottom surface grinding device, and air blowing device, controls the concavity and smoothness of the bottle bottom, improving its appearance. Attached Figure Description
[0017] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.
[0018] Figure 1 This is a schematic diagram of the bottle bottom forming system disclosed in this embodiment of the utility model;
[0019] Figure 2 yes Figure 1 A magnified view of a section at point A in the middle;
[0020] Figure 3 This is a schematic diagram of the heating device for heating the bottle bottom in the bottle bottom forming system disclosed in this embodiment of the utility model; and
[0021] Figure 4 This is a schematic diagram of the polishing device of the bottle bottom forming system disclosed in this embodiment of the present invention, which polishes the bottle bottom.
[0022] Explanation of reference numerals in the attached figures:
[0023] 1. Bottom edge grinding device; 11. Bottom edge grinding component; 12. Drive mechanism; 121. Drive gear; 122. Connecting plate; 123. Transmission rod; 124. Rack; 125. Limiting component; 126. Second drive structure; 127. Mounting bracket; 2. Bottom surface grinding device; 21. Second drive component; 22. Bottom surface grinding component; 3. Air blowing device; 4. Heating device; 5. Polishing device; 6. Detection device; 7. Control device; 8. Bottle body; 81. Bottom edge; 82. Bottom surface. Detailed Implementation
[0024] The embodiments of this utility model will be further described in detail below with reference to the accompanying drawings and examples. The following detailed description of the embodiments and the accompanying drawings are used to exemplarily illustrate the principles of this utility model, but should not be used to limit the scope of this utility model. This utility model can be implemented in many different forms and is not limited to the specific embodiments of the utility model described herein, but includes all technical solutions falling within the scope of the claims.
[0025] These embodiments are provided to make the present invention thorough and complete, and to fully express the scope of the present invention to those skilled in the art. It should be noted that, unless otherwise specifically stated, the relative arrangement of components and steps, material composition, numerical expressions, and values set forth in these embodiments should be interpreted as merely exemplary and not as limiting.
[0026] It should be noted that, in the description of this utility model, unless otherwise stated, "a plurality of" means two or more; the terms "upper," "lower," "left," "right," "inner," and "outer," etc., indicating orientation or positional relationships, are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. When the absolute position of the described object changes, the relative positional relationship may also change accordingly.
[0027] Furthermore, the terms "first," "second," and similar words used in this invention do not indicate any order, quantity, or importance, but are merely used to distinguish different parts. "Vertical" is not strictly vertical, but within the allowable error range. "Parallel" is not strictly parallel, but within the allowable error range. Words such as "including" or "comprising" mean that the element preceding the word encompasses the element listed after it, and do not exclude the possibility of encompassing other elements as well.
[0028] It should also be noted that, in the description of this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a direct connection or an indirect connection through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms in this utility model depending on the specific circumstances. When a specific device is described as being located between a first device and a second device, an intermediary device may or may not be present between the specific device and the first or second device.
[0029] All terms used in this invention have the same meaning as understood by one of ordinary skill in the art to which this invention pertains, unless otherwise specifically defined. It should also be understood that terms defined in general dictionaries should be interpreted as having meanings consistent with their meanings in the context of the relevant art, and not as idealized or highly formalized, unless expressly defined herein.
[0030] Techniques, methods, and equipment known to those skilled in the art may not be discussed in detail, but where appropriate, they should be considered part of the specification.
[0031] Existing vial bottom grinding mechanisms suffer from poor grinding results, failing to meet the requirements for bottle bottom concavity and smoothness. To address this issue, this utility model provides a bottle bottom forming system. (See attached document.) Figures 1 to 4The bottle bottom forming system includes a heating device 4, a bottom edge grinding device 1, a polishing device 5, a bottom surface grinding device 2, and an air blowing device 3. The heating device 4 is used to heat the bottle bottom to the softening point. The bottom edge grinding device 1 is used to grind the bottom edge 81 of the bottle bottom after it has been heated by the heating device 4. The polishing device 5 is used to polish the bottle bottom after it has been ground by the bottom edge grinding device 1. The bottom surface grinding device 2 is used to grind the bottom surface 82 of the bottle bottom after it has been polished by the polishing device 5. The air blowing device 3 is used to blow air into the bottle body 8 after the bottle bottom has been polished by the polishing device 5. Heating device 4 heats the bottle bottom to its softening point, facilitating grinding by bottom edge grinding device 1. This avoids damage to the bottle bottom caused by direct grinding of bottom edge 81 by bottom edge grinding device 1, ensuring the integrity of the bottle bottom. Bottom edge grinding device 1 grinds the bottom edge 81 of the bottle bottom heated to its softening point, removing burrs or scraps and improving the smoothness of bottom edge 81 without damaging the bottle bottom. Polishing device 5 polishes the bottle bottom, further improving its smoothness and maintaining its temperature for grinding by bottom surface grinding device 2. Bottom surface grinding device 2 and air blowing device 3 can simultaneously grind the bottom surface 82 of the bottle body 8 and blow air internally. Bottom surface grinding device 2 grinds the bottom surface 82 of the bottle bottom, without... It can not only remove burrs or scraps from the bottom surface 82 and improve the smoothness of the bottom surface 82, but also adjust the concavity of the bottom surface 82 so that the concavity of the bottle bottom meets the molding requirements. The blowing device 3 can blow air into the inside of the bottle body 8. The gas blown into the bottle body 8 can apply pressure to the bottom of the bottle. By adjusting the gas flow rate of the blowing device 3, the concavity of the bottle bottom can be adjusted to ensure that the concavity of the bottle bottom meets the molding requirements. The bottom edge grinding device 1 and the bottom surface grinding device 2 grind the bottom edge 81 and the bottom surface 82 of the bottle bottom respectively, which can improve the grinding accuracy of the bottle bottom. This utility model uses the heating device 4, the bottom edge grinding device 1, the polishing device 5, the bottom surface grinding device 2 and the blowing device 3 to control the concavity and smoothness of the bottle bottom and improve the appearance of the bottle bottom.
[0032] To enable the combined operation of the bottom surface grinding device 2 and the air blowing device 3, the air blowing device 3 is vertically positioned below the bottom surface grinding device 2. When the bottle body 8 moves between the bottom surface grinding device 2 and the air blowing device 3, the bottom surface grinding device 2 grinds the bottom surface 82 of the bottle body 8, while the air blowing device 3 blows air into the interior of the bottle body 8, thereby achieving precise adjustment of the concavity of the bottom surface 82 of the bottle.
[0033] In some embodiments, the blowing device 3 can blow compressed air into the interior of the bottle body 8. The nozzle of the blowing device 3 faces the bottle mouth of the bottle body 8, and the compressed air is sprayed from the top and side of the nozzle into the bottle mouth to form a surface airflow, so that the compressed air can be blown evenly into the bottom of the bottle, blowing out the volatile gases B2O3 and R2O generated by heating inside the bottle body 8, thereby effectively improving the water resistance of the bottle body 8.
[0034] The bottle bottom forming system disclosed in this utility model is particularly suitable for forming the bottom of controlled injection bottles. By controlling the concavity of the bottom surface 82 of the bottle bottom through the bottle bottom forming system, it can not only avoid the problem of controlled injection bottles tipping over due to the bottom surface 82 bulging outward, but also avoid the problem of bottle explosion caused by uneven temperature of the bottle body 8 during freeze drying due to the bottom surface 82 being too concave.
[0035] After the bottle mouth and body of the controlled injection vial are formed on the bottle making machine, the vial body 8 moves on the conveyor belt and moves sequentially to the positions of the heating device 4, the bottom edge grinding device 1, the polishing device 5, the bottom surface grinding device 2, and the blowing device 3. The conveyor belt is equipped with a clamping device that can clamp the vial body 8 and drive the vial body 8 to rotate around the axis, thereby achieving uniform heating, grinding and polishing of the bottom of the vial in the circumferential direction to complete the bottom forming.
[0036] See Figure 3 To heat the bottom of the bottle to its softening point, heating device 4 is a flamethrower positioned above the bottle bottom. The flamethrower's spray direction forms a 30°~45° angle with the horizontal plane where the bottle bottom is located, and the distance between the flamethrower nozzle and the bottle bottom is 5mm~10mm. The flamethrower sprays flames onto the bottle bottom in a downward tilting manner, effectively heating and softening the bottom; the flamethrower can also use the flame to evenly disperse the glass flakes at the bottom of the bottle.
[0037] In some embodiments, the bottle body 8 is a glass bottle with a softening point of approximately 750°C to 785°C.
[0038] To prevent damage to the bottle bottom caused by the bottom grinding device 2 directly grinding the bottom surface 82, the polishing device 5 can not only polish the bottle bottom, but also maintain the temperature of the bottle bottom at the softening point, thereby ensuring the integrity of the bottle bottom.
[0039] See Figure 4 To polish the bottle bottom, the polishing device 5 is a flamethrower. The flamethrower's spray direction is perpendicular to the height direction of the bottle body 8, and the flamethrower's nozzle is at the same height as the bottle bottom. The flamethrower not only polishes the bottle bottom but also keeps the temperature of the bottle bottom at its softening point, facilitating the bottom surface grinding device 2 to grind the bottom surface 82 of the bottle bottom. Furthermore, the flame emitted by the flamethrower is at the same height as the bottle bottom, effectively preventing the bottle bottom from becoming slanted.
[0040] To polish the bottom edge 81 of the bottle, the bottom edge polishing device 1 includes a bottom edge polishing component 11 and a driving mechanism 12. The bottom edge polishing component 11 is used to polish the bottom edge 81, and the driving mechanism 12 is used to drive the bottom edge polishing component 11 to move closer to or away from the bottom edge 81. When the driving mechanism 12 drives the bottom edge polishing component 11 closer to the bottom edge 81, the bottom edge polishing component 11 contacts the bottom edge 81 to achieve polishing. When the driving mechanism 12 drives the bottom edge polishing component 11 away from the bottom edge 81, it can prevent the bottle body 8 from colliding with the bottom edge polishing device 1 during movement and avoid damage to the bottle body 8. The bottom edge polishing component 11 can polish the bottom edge 81, thereby improving the smoothness of the bottom edge 81. After the bottom of the bottle body 8 is heated by the heating device 4, the bottle body 8 moves to the bottom edge grinding device 1. The clamping device can drive the bottle body 8 to rotate, and the driving mechanism 12 drives the bottom edge grinding part 11 to approach the bottom edge 81 so that the bottom edge grinding part 11 contacts the bottom edge 81 and performs circumferential grinding on the bottom edge 81 of the rotating bottle body 8, ensuring the smoothness and symmetry of the bottom edge 81.
[0041] To enable the bottom edge grinding component 11 to move precisely to the position of contact with the bottom edge 81 and thus grind the bottom edge 81, the drive mechanism 12 includes a first drive structure and a second drive structure 126. The first drive structure drives the bottom edge grinding component 11 to move horizontally, and the second drive structure 126 drives the bottom edge grinding component 11 to move vertically. The cooperation of the first drive structure and the second drive structure 126 allows the bottom edge grinding component 11 to move in both the horizontal and vertical directions, thereby enabling the bottom edge grinding component 11 to contact or separate from the bottom edge 81 and improving the accuracy of the movement of the bottom edge grinding component 11.
[0042] To improve the grinding efficiency of the bottom edge grinding component 11 and the grinding accuracy of the bottom edge 81, two bottom edge grinding components 11 are provided, which are respectively arranged on both sides of the bottle body 8 in the horizontal direction. The two bottom edge grinding components 11 symmetrically arranged on both sides of the bottle body 8 can grind the bottom edge 81 simultaneously, thereby improving the grinding efficiency of the bottom edge 81 and ensuring the symmetry of the bottom edge 81.
[0043] In some embodiments, the first driving structure includes two transmission members and a first driving member. The two transmission members are respectively connected to two bottom edge grinding members 11. The first driving member can drive the two transmission members to move relative to or away from each other, so that the two bottom edge grinding members 11 move closer or further away. By driving the two transmission members to move relative to or away from each other, the first driving member causes the two bottom edge grinding members 11 to move closer or further away from each other, thereby realizing that the two bottom edge grinding members 11 move closer or further away from the bottom edge 81, thus completing the grinding of the bottom edge 81.
[0044] See Figure 1 and Figure 2In some embodiments, the transmission component includes a connecting plate 122 and a transmission rod 123. One end of the connecting plate 122 is connected to the bottom edge grinding component 11, and one end of the transmission rod 123 is connected to the other end of the connecting plate 122. The other end of the transmission rod 123 is provided with a rack 124. The first driving component includes a driving gear 121, which is arranged vertically between the transmission rods 123 of the two transmission components and meshes with the racks 124 of the two transmission rods 123 to drive the two bottom edge grinding components 11 to move closer or further away. The rotation of the drive gear 121 can drive the rack 124 meshing with the drive gear 121 to move horizontally, thereby causing the transmission rod 123 and the connecting plate 122 to move horizontally, driving the bottom edge grinding part 11 to move closer to or further away from the bottom edge 81 in the horizontal direction; the drive gear 121 meshes with the rack 124 of the transmission rod 123 above it and the rack 124 of the transmission rod 123 below it, thereby driving the two transmission rods 123 to move closer to or further away in the horizontal direction, realizing the synchronous movement of the two bottom edge grinding parts 11, and ensuring the accuracy of the movement of the bottom edge grinding parts 11.
[0045] In order to make the drive gear 121 vertically positioned between the two transmission rods 123, the two connecting plates 122 have different lengths in the vertical direction, so that the two transmission rods 123 are located at different heights, and one drive gear 121 can mesh with the racks 124 of the two transmission rods 123 located on its upper and lower sides.
[0046] In some embodiments, the first driving element further includes a servo motor, which is capable of driving the drive gear 121 to rotate.
[0047] In some embodiments, the bottle bottom forming system further includes a buffer member that connects the bottom edge grinding member 11 and the connecting plate 122, thereby achieving a soft connection between the bottom edge grinding member 11 and the connecting plate 122 and preventing the bottom edge grinding member 11 from colliding with the bottle bottom during vertical movement.
[0048] In some embodiments, the buffer is a spring.
[0049] To improve the accuracy of the movement of the bottom edge grinding component 11, the travel length of the drive gear 121 for each rotation can be set to 10mm, the number of pulses required for the drive gear 121 to rotate one revolution can be set to 1000, and the travel length of the control device 7 for each pulse is 0.01mm. Assuming that the outer diameter of the bottom of a certain specification of controlled injection bottle is Xmm, after setting the initial position of the bottom edge grinding component 11, the rotation angle of the drive gear 121 can be obtained by simple calculation.
[0050] In some embodiments, the rack 124 is provided with limiting members 125 on both sides along its length direction. The limiting members 125 can limit the moving length of the transmission rod 123. The limiting members 125 can limit the meshing length between the drive gear 121 and the rack 124, thereby limiting the moving length of the transmission rod 123 in the horizontal direction, thus preventing the two bottom edge grinding parts 11 from colliding when approaching the bottom of the bottle, and preventing the transmission rod 123 from disengaging from the drive gear 121 when the two bottom edge grinding parts 11 move away.
[0051] In some embodiments, the limiting member 125 is a limiting block fixedly disposed on the rack 124.
[0052] It should be noted that the above are examples of specific methods for limiting the moving length of the transmission rod 123 as described in this utility model, and should not be construed as limiting the specific methods for limiting the moving length of the transmission rod 123 as described in this utility model. Any structure that can limit the moving length of the transmission rod 123 will fall within the protection scope of this utility model.
[0053] To ensure the stable horizontal movement of the transmission rod 123, the first drive structure also includes a mounting bracket 127. The mounting bracket 127 is provided with two sliding grooves extending in the horizontal direction. The two transmission rods 123 are slidably disposed in the two sliding grooves, thereby ensuring the stability of the horizontal movement of the transmission rods 123.
[0054] In order to drive the bottom edge grinding part 11 to move in the vertical direction, the second drive structure 126 includes a servo motor and a ball screw. The ball screw nut is fixedly connected to the mounting bracket 127. The cooperation between the servo motor and the ball screw enables the ball screw nut to move in the vertical direction, thereby driving the mounting bracket 127 to move in the vertical direction.
[0055] It should be noted that the above are examples of specific ways in which the bottom edge grinding component 11 moves vertically as described in this utility model, and should not be construed as limiting the specific ways in which the bottom edge grinding component 11 moves vertically as described in this utility model. Any structure that can realize the vertical movement of the bottom edge grinding component 11 will fall within the protection scope of this utility model.
[0056] It is understandable that the second drive structure 126 can also be a linear motor, the output end of which is connected to the mounting bracket 127, thereby driving the bottom edge grinding part 11 to move in the vertical direction.
[0057] The second drive structure 126 drives the mounting bracket 127 to move downward in the vertical direction, so that the grinding surface of the bottom edge grinding part 11 is at the same height as the bottom edge 81 of the bottle. Then the first drive component drives the drive gear 121 to rotate, so that the two bottom edge grinding parts 11 move relative to each other until they contact the bottom edge 81. The bottle body 8 rotates and rubs against the two bottom edge grinding parts 11 to achieve the grinding and shaping of the bottom edge 81.
[0058] To polish the bottom surface 82 of the bottle, the bottom surface polishing device 2 includes a bottom surface polishing component 22 and a second driving component 21. The bottom surface polishing component 22 is used to polish the bottom surface 82 of the bottle, and the second driving component 21 is used to drive the bottom surface polishing component 22 to move vertically. The second driving component 21 can drive the bottom surface polishing component 22 to approach the bottom surface 82 of the bottle in the vertical direction, so that the bottom surface polishing component 22 contacts the bottom surface 82. The bottom surface polishing component 22 can polish the bottom surface 82 of the bottle, which can not only improve the smoothness of the bottom surface 82, but also ensure the concavity of the bottom surface 82.
[0059] In order to easily control the travel distance between the bottom grinding component 22 and the bottom of the bottle, a spring is provided between the second drive component 21 and the bottom grinding component 22 to achieve a soft connection between the second drive component 21 and the bottom grinding component 22.
[0060] In some embodiments, the outer diameter of the bottom grinding part 22 is slightly smaller than the outer diameter of the bottle bottom, and it is in the shape of a disc with a thicker middle and thinner edges. The concavity of the bottom surface 82 can be controlled by controlling the thickness difference between the middle and the edge of the bottom grinding part 22.
[0061] In some embodiments, the second drive component 21 includes a servo motor and a ball screw. The ball screw includes a screw shaft and a screw nut. The servo motor is connected to the screw shaft for transmission, the screw shaft is connected to the screw nut for rolling, and the screw nut is fixedly connected to the bottom surface grinding component 22, thereby driving the bottom surface grinding component 22 to move in the vertical direction.
[0062] It should be noted that the above are examples of specific ways in which the bottom surface grinding component 22 moves vertically as described in this utility model, and should not be construed as limiting the specific ways in which the bottom surface grinding component 22 moves vertically as described in this utility model. Any structure that can realize the vertical movement of the bottom surface grinding component 22 will fall within the protection scope of this utility model.
[0063] It is understandable that the second driving component 21 can also be a linear motor, the output end of which is connected to the bottom surface grinding component 22, thereby driving the bottom surface grinding component 22 to move in the vertical direction.
[0064] See Figure 1To address the technical issues of high manual intervention and low automation in existing bottle bottom forming systems, the system also includes a control device 7. This control device 7 controls the operation of the heating device 4, the bottom edge grinding device 1, the polishing device 5, the bottom surface grinding device 2, and the air blowing device 3. The control device 7 significantly reduces manual labor intensity and intervention, thereby improving the automation level of the bottle bottom forming system.
[0065] To improve the molding accuracy of the bottle bottom forming system, the system also includes a detection device 6. The detection device 6 detects the curvature of the bottom edge 81 and the concavity of the bottom surface 82, and transmits the detected data to a control device 7. The control device 7 is configured to control the operation of the heating device 4, the bottom edge grinding device 1, the polishing device 5, the bottom surface grinding device 2, and the air blowing device 3 based on the data. The control device 7 compares the data detected by the detection device 6 with the set curvature of the bottom edge 81 and the concavity of the bottom surface 82, thereby adaptively adjusting the bottle bottom forming system and improving the yield of bottle bottom molding.
[0066] In order to detect the curvature of the bottom edge 81 and the concavity of the bottom surface 82, the detection device 6 uses image acquisition to detect them.
[0067] The molding method of the bottle bottom molding system of this utility model is as follows:
[0068] Heat the bottom of the bottle to its softening point;
[0069] Grind the bottom edge 81 of the bottle bottom after heating it to its softening point;
[0070] Polish the bottom of the bottle to shape it;
[0071] Grind the bottom surface of the bottle at 82mm.
[0072] Detect the curvature of the bottom edge (81) and the concavity of the bottom surface (82) of the bottle bottom;
[0073] Based on the difference between the measured curvature of the bottom edge 81 of the bottle and the set curvature, the heating temperature of the heating device 4 is adjusted, and the distance between the bottom edge grinding device 1 and the bottle bottom is adjusted; and
[0074] Based on the difference between the detected concavity 82 on the bottom of the bottle and the set concavity, adjust the air flow of the blowing device 3 and adjust the distance between the bottom grinding device 2 and the bottom of the bottle.
[0075] When the detection device 6 detects an appearance defect at the bottom of the bottle, it should first check whether it is caused by mold contamination.
[0076] After eliminating the influence of mold contamination, when the curvature of the bottom edge 81 is too large, first reduce the temperature of the heating device 4 and then increase the height of the bottom edge grinding device 1; when the curvature of the bottom edge 81 is too small, first reduce the height of the bottom edge grinding device 1 and then increase the temperature of the heating device 4.
[0077] When the concavity of the bottom surface 82 is too large, first increase the air flow of the air blowing device 3, and then raise the height of the bottom surface polishing part 22; when the concavity of the bottom surface 82 is too small or the bottom is convex, first decrease the air flow of the air blowing device 3, and then lower the height of the bottom surface polishing part 22.
[0078] When the bottom edge 81 of the bottle is rough, it is determined whether the problem is that the heating temperature of the polishing device 5 is insufficient, resulting in insufficient flame polishing.
[0079] When the bottom of the bottle has an irregular shape such as a slanted bottom, determine whether it is due to an excessively large flame from the heating device 4 or a problem with the angle of the flame from the polishing device 5.
[0080] The various embodiments of this utility model have now been described in detail. To avoid obscuring the concept of this utility model, some details known in the art have not been described. Those skilled in the art can fully understand how to implement the technical solutions disclosed herein based on the above description.
[0081] Although specific embodiments of the present invention have been described in detail by way of examples, those skilled in the art should understand that the above examples are for illustrative purposes only and are not intended to limit the scope of the present invention. Those skilled in the art should understand that modifications can be made to the above embodiments or equivalent substitutions can be made to some technical features without departing from the scope and spirit of the present invention. In particular, as long as there is no structural conflict, the various technical features mentioned in the embodiments can be combined in any manner.
Claims
1. A bottle bottom forming system, characterized in that, include: Heating device (4), the heating device (4) is used to heat the bottom of the bottle to the softening point; Bottom edge grinding device (1), the bottom edge grinding device (1) is used to grind the bottom edge (81) of the bottle bottom after it has been heated by the heating device (4). Polishing device (5), the polishing device (5) is used to polish the bottom of the bottle after it has been polished by the bottom edge grinding device (1); Bottom surface polishing device (2), the bottom surface polishing device (2) is used to polish the bottom surface (82) of the bottle bottom after polishing by the polishing device (5); and An air blowing device (3) is used to blow air into the bottle body (8) after the polishing device (5) polishes the bottom of the bottle.
2. The bottle bottom forming system according to claim 1, characterized in that, The heating device (4) is a flame injector and is located above the bottom of the bottle. The spray direction of the flame injector forms an angle of 30° to 45° with the horizontal plane where the bottom of the bottle is located. The distance between the nozzle of the flame injector and the bottom of the bottle is 5mm to 10mm.
3. The bottle bottom forming system according to claim 1, characterized in that, The polishing device (5) is a flame jet, the spraying direction of which is perpendicular to the height direction of the bottle body (8), and the nozzle of the flame jet is at the same height as the bottom of the bottle.
4. The bottle bottom forming system according to claim 1, characterized in that, The bottom edge grinding device (1) includes: A bottom edge grinding component (11), said bottom edge grinding component (11) being used to grind the bottom edge (81); and A drive mechanism (12) is used to drive the bottom edge grinding part (11) to move closer to or away from the bottom edge (81).
5. The bottle bottom forming system according to claim 4, characterized in that, The drive mechanism (12) includes: A first driving structure is used to drive the bottom edge grinding member (11) to move horizontally; and The second drive structure (126) is used to drive the bottom edge grinding part (11) to move in the vertical direction.
6. The bottle bottom forming system according to claim 5, characterized in that, Two bottom edge grinding parts (11) are provided, and the two bottom edge grinding parts (11) are respectively arranged on both sides of the bottle body (8) in the horizontal direction. The first driving structure includes: Two transmission components, each of which is connected to one of the two bottom edge grinding components (11); and A first driving member is capable of driving two transmission members to move relative to or away from each other, so that the two bottom edge grinding members (11) move closer to or further away from each other.
7. The bottle bottom forming system according to claim 6, characterized in that, The transmission component includes: Connecting plate (122), one end of which is connected to the bottom edge grinding part (11); and A transmission rod (123) is provided at one end, which is connected to the other end of the connecting plate (122). A rack (124) is provided at the other end of the transmission rod (123). The first driving member includes a driving gear (121), which is arranged vertically between the transmission rods (123) of the two transmission members and meshes with the racks (124) of the two transmission rods (123) to drive the two bottom edge grinding members (11) to move closer or further away.
8. The bottle bottom forming system according to claim 1, characterized in that, The bottom surface grinding device (2) includes: Bottom surface polishing component (22), said bottom surface polishing component (22) is used to polish the bottom surface (82) of the bottle bottom; and The second driving member (21) is used to drive the bottom surface grinding member (22) to move in the vertical direction.
9. The bottle bottom forming system according to any one of claims 1-8, characterized in that, The bottle bottom forming system also includes a control device (7), which is used to control the operation of the heating device (4), the bottom edge grinding device (1), the polishing device (5), the bottom surface grinding device (2) and the air blowing device (3).
10. The bottle bottom forming system according to claim 9, characterized in that, The bottle bottom forming system also includes a detection device (6), which is used to detect the curvature of the bottom edge (81) and the concavity of the bottom surface (82) of the bottle bottom, and can transmit the detected data to the control device (7). The control device (7) is configured to control the operation of the heating device (4), the bottom edge grinding device (1), the polishing device (5), the bottom surface grinding device (2) and the air blowing device (3) according to the data.