Heating device and bottle blowing machine
By setting a sleeve and air guide channel on the preform insertion rod, the problems of preform jamming and excessive temperature are solved, achieving reliable preform release and temperature control, and improving the user experience and efficiency of the blow molding machine.
Patent Information
- Application Number
- CN202520084855.0
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-01-14
- Publication Date
- 2026-01-30
- Estimated Expiration
- 2035-01-14
AI Technical Summary
In existing blow molding machines, preforms are prone to shifting and jamming at the limiting components, which affects processing efficiency. Furthermore, excessively high temperatures of the insert rod can cause preform orifice deformation, increasing the scrap rate.
A sleeve is installed on the insert rod. The sleeve moves synchronously with the preform and works in conjunction with the insert rod to lift and lower, ensuring that the preform is reliably released. The temperature of the insert rod is also reduced through the air guide channel.
It improves the reliability of preform detachment, prevents jamming, reduces scrap rate, and enhances user experience and production efficiency.
Smart Images
Figure CN223849932U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to the field of plastic processing, concretely relates to a heating device and bottle blowing machine. BACKGROUND
[0002] The existing bottle blowing machine comprises a rack and a heating device, a distance-transporting device and a bottle blowing device arranged on the rack, the heating device softens the bottle blank by heating, the distance-transporting device receives the softened bottle blank and transports it to the bottle blowing device after being separated by a distance, and the bottle blowing device receives the bottle blank transported by the distance-transporting device and blows it into a bottle. The heating device comprises a rack, a conveying mechanism in the shape of a ring and an oven arranged along the conveying mechanism, the conveying mechanism comprises a ring chain and a blank conveying assembly closely arranged along the ring chain, the blank conveying assembly comprises an insert blank rod that can be vertically lifted, and the insert blank rod can be switched between an insert blank station and a blank removal station. The distance-transporting device comprises a transporting channel for receiving the bottle blank from the heating device, the heating device comprises a blank removal member and a lifting member arranged at the entrance of the transporting channel, the insert blank rod is lifted and switched from the insert blank station to the blank removal station under the action of the lifting member, and the bottle blank is in contact with the blank removal member and separated from the insert blank rod when the insert blank rod is lifted, so that the bottle blank falls at the entrance of the transporting channel, facilitating subsequent distance-transporting operation and bottle blowing operation. Since the limiting member is fixedly connected at the entrance of the transporting channel and is a common component that can be used with all blank conveying assemblies, the bottle blank conveyed by the blank conveying assembly is prone to deviate from the limiting member during movement, which prevents the bottle blank from being separated from the insert blank rod by cooperating with the limiting member, and thus the processing efficiency is affected due to the jamming of the bottle blank.
[0003] In addition, the end of the insert blank member is inserted into the blank port of the corresponding bottle blank through the insert blank head, the insert blank head is prone to have a high temperature due to receiving heat from the oven for a long time, which causes the deformation of the blank port due to softening caused by heat, which not only prevents the bottle blank from being reliably sleeved on the insert blank head through the blank port, but also causes the deformation of the bottle port of the finished product, increasing the waste rate. UTILITY MODEL CONTENTS
[0004] In order to solve the problems in the prior art, the utility model provides a heating device and a bottle blowing machine, a sleeve is arranged on the insert blank rod, which facilitates the lifting movement of the insert blank rod and also enables the sleeve that moves synchronously with the bottle blank to cooperate with the insert blank rod to implement the blank removal operation, thereby improving the blank removal reliability and use experience.
[0005] The utility model discloses a heating device, including frame, the conveying mechanism of annular and the oven of arrangement along the conveying mechanism, the conveying mechanism includes annular chain and the close arrangement of blank conveying subassembly along annular chain and conveys blank, the blank conveying subassembly and the sleeve shell of annular chain fixedly connected and the blank inserting rod of liftable installation in sleeve shell, the blank inserting rod drops to insert blank station and passes through bottom end and inserts the blank of bottle, to make blank bottle can be on the blank inserting rod and switch to the blank station when rising and contact with sleeve shell bottom surface and separate the blank inserting rod, set up sleeve shell on the blank inserting rod, and the blank inserting rod can relative sleeve shell and carry out the lifting action and switch between insert blank station and the blank station, and the blank inserting rod rises and drives blank bottle and sleeve shell bottom surface contact, ensure that blank bottle can separate the blank inserting rod, can utilize the sleeve shell of synchronous movement with blank bottle and insert blank rod cooperation and carry out the blank operation, ensure that blank bottle blank operation reliability, also prevent the situation that blank bottle appears and clamps, promote the use experience.
[0006] As preferred, the sleeve shell includes a tubular body tube and a blanking tube arranged below the body tube, the body tube is fixedly connected with the annular chain through a connecting piece, and a bottom surface of the blanking tube forms a limiting surface for the top surface of the blank port of the bottle blank to contact. The body tube is fixedly connected with the annular chain, which not only provides suspension support for the blank inserting rod, but also provides positioning for the blanking tube, and ensures that the relative position between the blanking tube and the vertical projection of the corresponding bottle blank is fixed, so that the blank inserting rod and the blanking tube are driven to contact the bottle blank on the blanking tube when vertically moving relative to each other, and the bottle blank can be smoothly separated from the blank inserting rod, effectively preventing the bottle blank from being clamped.
[0007] As preferred, the bottom end of the blank inserting rod is provided with a blank inserting head, and the diameter of the blank inserting head matches the diameter of the inner edge of the blank port, so that the blank inserting rod is tightly inserted into the blank port through the blank inserting head when switching to the blank inserting station. The blank inserting head is detachably mounted at the bottom end of the blank inserting rod, and the blanking tube is detachably mounted below the body tube, so that the blank inserting head and the blanking tube can be replaced and adjusted according to the size of the bottle blank to be processed, which not only ensures that the bottle blank is accurately transported and conveyed, but also ensures that the blank inserting head can freely rise and fall in the blanking tube, preventing the two from colliding and interfering.
[0008] As preferred, the diameter of the blank inserting head is smaller than the diameter of the inner wall of the blanking tube, and the blank inserting head is suspended in the blanking tube, so that the blank inserting rod can be switched between the blanking station where the blank inserting head is completely hidden in the blanking tube and the blank inserting station where the blank inserting head is at least partially exposed to the blanking tube. When the blank inserting head rises and is completely retracted into the blanking tube, the bottle blank will be completely separated from the blank inserting head due to the blocking of the blanking tube, so that the bottle body is separated from the blank conveying assembly and falls.
[0009] As preferred, the top surface of the blanking tube is formed with a ring-shaped connecting plate through radial extension, the connecting plate is attached to the bottom surface of the body tube and is fixed through fastening, which effectively increases the contact area between the blanking tube and the body tube, improves the connection reliability, ensures that the body tube and the blanking tube maintain a coaxial posture, and facilitates the lifting movement of the blank inserting rod.
[0010] As preferred, the limiting surface at least partially overlaps with the vertical projection of the top surface of the neck ring, ensuring that the limiting surface can be in close contact with the top surface of the neck ring and play a role in clamping and limiting the bottle blank.
[0011] As preferred, the deblocking pipe is a circular pipe, and a wind guide channel is formed between the inner wall of the deblocking pipe and the outer wall of the inserting rod. The air inlet and air outlet of the wind guide channel are arranged on the deblocking pipe. The distance between the corresponding areas of the inner wall of the deblocking pipe and the outer wall of the inserting rod is the same, so as to form a wind guide channel with equal width. The wind guide channel is used to guide the airflow to flow along the surface of the inserting rod, thereby reducing the temperature of the inserting rod and preventing the neck ring from being deformed due to the high temperature of the inserting head.
[0012] As preferred, the ring-shaped chain is provided with a straight line segment matched with the oven, and the machine frame is provided with a bellows arranged along the straight line segment. The deblocking pipe is transported along the straight line segment and receives the airflow from the bellows through the air inlet. The airflow flows through the wind guide channel and is discharged through the air outlet, so as to reduce the temperature of the inserting part. The straight line segment is arranged adjacent to the oven, so that the oven can heat and soften the bottle blank moving along the straight line segment. The bellows is arranged along the straight line segment, and the airflow generated by the bellows can be blown into the air inlet and transported along the wind guide channel to the air outlet. The wind guide channel is used to guide the airflow to flow along the surface of the inserting rod, thereby effectively improving the cooling effect.
[0013] As preferred, the air outlet is a plurality of and is equidistantly arranged along the circumference of the deblocking pipe. By arranging a plurality of air outlets, the airflow dispersion efficiency is improved, and the airflow flow is increased, thereby improving the cooling effect.
[0014] As preferred, the air inlet and the air outlet are both vertically arranged in the shape of a long strip, so as to increase the coverage area of the airflow on the surface of the inserting rod. The vertical arrangement of the air inlet and the air outlet effectively increases the surface area of the inserting rod covered by the wind guide channel, thereby improving the heat dissipation effect.
[0015] As preferred, the bellows is arranged at the same height as the deblocking pipe, so as to ensure that the airflow generated by the bellows can be input into the wind guide channel through the air inlet. The air inlet is arranged towards the bellows, so as to effectively receive the airflow from the bellows and reduce the loss of the airflow along the way.
[0016] A bottle blowing machine comprises a distance separating and transferring device, a bottle blowing device and a heating device. The distance separating and transferring device comprises a supporting plate with a transferring channel. The bottle blank is separated from the inserting rod and falls on the transferring channel, so that the bottle blank is transferred to the bottle blowing device at a distance. The bottle blank heated and softened in the heating device falls to the transferring channel through the feeding assembly and is vertically formed into a bottle after being transferred to the bottle blowing device at a distance.
[0017] The beneficial effects of this utility model are as follows: A sleeve is provided on the insert rod, and the insert rod can move up and down relative to the sleeve and switch between the inserting position and the uninsertion position. When the insert rod rises, it drives the bottle preform to contact the bottom surface of the sleeve, ensuring that the bottle preform can be detached from the insert rod. The sleeve, which moves synchronously with the bottle preform, works in conjunction with the insert rod to carry out the uninsertion operation, ensuring the reliability of the bottle preform uninsertion operation and preventing the bottle preform from getting stuck, thus improving the user experience. Attached Figure Description
[0018] Figure 1 This is a schematic diagram of the structure of the heating device;
[0019] Figure 2 This is a partial structural schematic diagram of the conveying mechanism;
[0020] Figure 3 This is a schematic diagram of the disassembled structure of the billet conveying assembly;
[0021] Figure 4 This is a cross-sectional view of the insert rod when it is in the inserting position.
[0022] Figure 5 This is a cross-sectional view of the insert rod when it is in the blank removal position.
[0023] In the diagram: 1. Frame, 2. Conveying mechanism, 3. Oven, 4. Ring chain, 5. Body tube, 6. Deformation tube, 7. Insertion rod, 8. Bottle preform, 9. Limiting surface, 10. Insertion head, 11. Connecting plate, 12. Air inlet, 13. Air box, 14. Air outlet, 15. Connecting piece. Detailed Implementation
[0024] The essential features of this utility model will be further described below with reference to the accompanying drawings and specific embodiments.
[0025] Example 1:
[0026] This embodiment provides a heating device.
[0027] like Figure 1 and 2The heating device shown is composed of a rack 1, a ring-shaped conveying mechanism 2, and an oven 3 arranged along the conveying mechanism 2. The conveying mechanism 2 includes a ring-shaped chain 4 and a blank conveying assembly closely arranged along the ring-shaped chain 4 and conveying a blank 8. The blank conveying assembly is fixed to a sleeve of the ring-shaped chain 4 and an insertion blank rod 7 is installed in the sleeve in a liftable manner. The insertion blank rod 7 is lowered to an insertion blank station and is inserted into the blank 8 through the bottom end, so that the blank 8 can be in contact with the bottom surface of the sleeve when the insertion blank rod 7 is lifted to switch to a blank removal station and is separated from the insertion blank rod 7. A sleeve is arranged on the insertion blank rod 7. The insertion blank rod 7 can perform lifting action relative to the sleeve and switch between the insertion blank station and the blank removal station. The insertion blank rod 7 is lifted and drives the blank 8 to be in contact with the bottom surface of the sleeve, so that the blank 8 can be separated from the insertion blank rod 7. The sleeve and the insertion blank rod 7 are cooperated to perform the blank removal operation by synchronously moving with the blank 8, so as to ensure the reliability of the blank removal operation of the blank 8, prevent the blank 8 from being stuck, and improve the use experience.
[0028] In the embodiment, the ring-shaped chain 4 includes a plurality of chain links connected end to end and chain shafts arranged on the corresponding ends of adjacent chain links to enable the adjacent chain links to be rotationally connected. The sleeve includes a tubular body tube 5 and a blank removal tube 6 arranged below the body tube 5 (as shown in Figure 3 The bottom surface of the blank removal tube 6 forms a limiting surface 9 for the top surface of the blank 8 to be in contact. The body tube 5 and the blank removal tube 6 are vertically coaxially arranged to form a vertical through accommodating cavity in the sleeve. The insertion blank rod 7 is arranged in the accommodating cavity in a liftable manner. The insertion blank rod 7 and the inner wall of the accommodating cavity are guided and limited by a sliding ring to enable the insertion blank rod 7 to reciprocatingly lift within a predetermined range and to realize the taking and placing operation of the blank 8. One end of the connecting piece 15 is fixedly connected to the outer wall of the body tube, and the other end is fixedly connected to the corresponding chain link, so that the blank conveying assembly can be arranged along the ring-shaped chain and synchronously operated.
[0029] In the embodiment, the bottom end of the insertion blank rod 7 is provided with an insertion blank head 10. The diameter of the insertion blank head 10 matches the diameter of the inner edge of the blank mouth, so that the insertion blank rod 7 is closely inserted into the blank mouth through the insertion blank head 10 when the insertion blank rod 7 switches to the insertion blank station. In use, when the insertion blank rod 7 falls to the insertion blank station, the insertion blank head 10 is exposed downward from the bottom surface of the blank removal tube 6 and is inserted into the blank mouth of the corresponding blank 8 (as shown in Figure 4 The outer wall of the insertion blank head 10 is closely attached to the inner wall of the blank mouth, so that the blank 8 can synchronously move with the insertion blank rod 7. When the insertion blank rod 7 is lifted to the blank removal station, the insertion blank head 10 is lifted synchronously with the blank 8. The insertion blank head 10 is retracted into the blank removal tube 6. The top surface of the blank mouth of the blank 8 is in contact with the bottom surface of the blank removal tube 6 and is limited and separated from the insertion blank head 10 (as shown in Figure 5The bottle blank 8 is caused to fall by its own gravity. Since the stripping tube 6 is fixed to the body tube 5, the relative position of the stripping tube 6 and the bottle blank 8 suspended at the bottom of the parison rod 7 in the horizontal plane is fixed, ensuring that the bottle blank 8 can accurately abut against the bottom surface of the stripping tube 6 when the parison rod 7 is lifted, effectively improving the stripping reliability and preventing the bottle blank 8 from failing to smoothly separate from the parison rod 7.
[0030] In the embodiment, the diameter of the parison head 10 is smaller than the inner wall diameter of the stripping tube 6, and the parison head 10 is suspended in the stripping tube 6, so that the parison rod 7 can be switched between a stripping position in which the parison head 10 is completely hidden in the stripping tube 6 and a parison position in which the parison head 10 is at least partially exposed to the stripping tube 6. The outer wall diameter of the parison head 10 matches the inner wall diameter of the mouth of the bottle blank 8, so that the parison head 10 can be closely inserted into the mouth of the bottle blank 8, ensuring that the bottle blank 8 is reliably transported. The outer wall diameter of the parison head 10 is smaller than the inner wall diameter of the stripping tube 6, ensuring that the parison head 10 can smoothly rise and fall with the parison rod 7 in the sleeve, preventing mutual abutment and interference. The bottom surface of the stripping tube 6 is annular, and the inner wall diameter of the stripping tube 6 is smaller than the outer diameter of the top surface of the mouth of the bottle blank 8, ensuring that the bottom surface of the stripping tube 6 at least partially overlaps the vertical projection of the top surface of the mouth, ensuring that the bottle blank 8 can be abutted and limited by the stripping tube 6 and separated from the parison head 10.
[0031] In the embodiment, the top surface of the stripping tube 6 is annularly connected by a radially extending annular connecting plate 11, which is attached to the bottom surface of the body tube 5 and fixed by fasteners. The outer periphery profile of the connecting plate 11 matches the outer periphery profile of the bottom surface of the body tube 5, ensuring that adjacent sleeves can be closely attached, increasing the density of the parison rod 7 by reducing the gap between adjacent sleeves, effectively improving production efficiency. The body tube 5 is square tube-shaped, and the horizontal cross-sectional profile of the outer wall of the body tube 5 is square, facilitating the mutual abutment and limitation of the body tube 5 by the corresponding side walls when moving along the straight section of the annular chain 4, effectively utilizing the space on the straight section of the annular chain 4.
[0032] In the embodiment, the ring chain 4 is provided with a straight section matched with the oven 3, the frame 1 is provided with a wind box 13 arranged along the straight section, the stripping pipe 6 is transported along the straight section and receives the airflow from the wind box 13 through the air inlet 12, the airflow flows through the air guide channel and is discharged through the air outlet 14 to reduce the temperature of the plug-in part. Since the plug-in head 10 is close to the bottle blank 8 and repeatedly passes through the oven 3, the temperature at the bottom of the plug-in rod 7 will continue to rise, which will cause the softening deformation of the blank port due to the excessive temperature at the bottom of the plug-in rod 7. Therefore, the wind box 13 is provided to generate the airflow transported to the plug-in head 10, the heat accumulated on the bottom of the plug-in rod 7 is taken away by the airflow, the temperature of the plug-in head 10 is reduced to protect the blank port and ensure that the blank port will not be deformed. In use, the airflow flows into the air guide channel through the air inlet 12, the airflow flows along the air guide channel and increases the contact time with the plug-in head 10, which effectively improves the cooling effect of the plug-in head 10 and improves the use experience.
[0033] In the embodiment, the stripping pipe 6 is a circular pipe, the air guide channel is formed by the inner wall of the stripping pipe 6 and the outer wall of the plug-in rod 7, and the air inlet 12 and the air outlet 14 of the air guide channel are arranged on the stripping pipe 6. The inner wall of the stripping pipe 6 surrounds the plug-in rod 7 to form a circular arc-shaped air guide channel, so that the airflow can flow along the surface of the plug-in rod 7 under the guidance of the air guide channel, thereby increasing the contact area and contact time to improve the cooling effect.
[0034] In the embodiment, the air outlet 14 is a plurality of and is equidistantly arranged along the circumference of the stripping pipe 6, the stripping pipe 6 is provided with four equidistantly arranged openings, the opening towards the wind box 13 forms the air inlet 12, and the remaining openings form the air outlet 14, which increases the number of air outlets 14 to improve the airflow and cooling effect, and effectively reduces the weight of the stripping pipe 6.
[0035] In the embodiment, the air inlet 12 and the air outlet 14 are vertically arranged in a long strip shape to increase the coverage area of the airflow on the surface of the plug-in rod 7. The air inlet 12 and the air outlet 14 are vertically arranged to effectively increase the area range covering the bottom of the plug-in rod 7, thereby improving the heat dissipation effect.
[0036] In the embodiment, the wind box 13 is arranged at the same height as the stripping pipe 6. The wind box 13 is provided with a long strip-shaped air port arranged along the straight section of the ring chain 4, each section of the air port can output airflow, so that the stripping pipe 6 can receive the airflow from the wind box 13 through the air inlet 12 when moving to any section of the straight section, and the plug-in rod 7 can receive the airflow when passing through the oven 3, thereby effectively reducing the temperature of the plug-in rod 7 and the stripping pipe 6.
[0037] In the embodiment, the side wall of the body pipe 5 is provided with an opening, which plays a role in cooling and weight reduction.
[0038] Embodiment two:
[0039] Compared with embodiment one, the embodiment provides a bottle blowing machine.
[0040] A bottle blowing machine is composed of a distance-transporting device, a bottle blowing device and a heating device. The distance-transporting device includes a supporting plate with a transporting channel. The bottle blank 8 is separated from the inserting rod 7 and falls on the transporting channel, so that the bottle blank 8 is transported to the bottle blowing device. The bottle blank 8 is provided with a limiting ring between the blank mouth and the blank body. When the bottle blank 8 on the inserting rod 7 moves above the entrance of the transporting channel, the blank separation action is performed, so that the bottle blank 8 is separated from the inserting rod 7 and is overlapped on the transporting channel through the limiting ring, so that the bottle blank 8 can be quickly and stably transported by the distance-transporting device. The maintenance cost is reduced by eliminating the transporting failure, the processing efficiency is effectively improved, and the use experience is improved.
[0041] The structure and effect of the heating device in the embodiment are consistent with those in embodiment one, and will not be described again.
Claims
1. A heating device comprising a frame (1), a conveyor mechanism (2) in the form of a ring and ovens (3) arranged along the conveyor mechanism (2), characterized in that, The conveying mechanism (2) comprises a ring chain (4) and a bottle blank conveying assembly closely arranged along the ring chain (4) and conveying the bottle blank (8), a sleeve shell fixedly connected with the ring chain (4) and a blank inserting rod (7) which is installed in the sleeve shell in a liftable manner, the blank inserting rod (7) is lowered to the blank inserting station and is inserted into the bottle blank (8) through the bottom end, so that the bottle blank (8) can be in contact with the bottom surface of the sleeve shell and separated from the blank inserting rod (7) when the blank inserting rod (7) is lifted to switch to the blank removing station.
2. A heating device according to claim 1, characterised in that The sleeve shell comprises a tubular body pipe (5) and a blank removing pipe (6) arranged below the body pipe (5), the body pipe (5) is fixedly connected with the ring chain (4) through a connecting piece (15), and the bottom surface of the blank removing pipe (6) forms a limiting surface (9) for the top surface of the blank mouth of the bottle blank (8).
3. A heating device according to claim 2, wherein The bottom end of the blank inserting rod (7) is provided with a blank inserting head (10), the diameter of the blank inserting head (10) matches the diameter of the inner edge of the blank mouth, so that the blank inserting rod (7) is closely inserted into the blank mouth through the blank inserting head (10) when the blank inserting rod (7) is switched to the blank inserting station.
4. A heating device according to claim 3, wherein The diameter of the blank inserting head (10) is smaller than the diameter of the inner wall of the blank removing pipe (6), the blank inserting head (10) is suspended in the blank removing pipe (6), so that the blank inserting rod (7) can be switched between the blank removing station where the blank inserting head (10) is completely hidden in the blank removing pipe (6) and the blank inserting station where the blank inserting head (10) is at least partially exposed to the blank removing pipe (6).
5. A heating device according to claim 2, wherein The top surface of the blank removing pipe (6) is provided with a ring-shaped connecting plate (11) formed by radial extension, the connecting plate (11) is attached to the bottom surface of the body pipe (5) and is fixed by a fastener, or the limiting surface (9) at least partially overlaps with the vertical projection of the top surface of the blank mouth.
6. A heating device according to any one of claims 2-5, characterised in that The blank removing pipe (6) is a circular pipe, a wind guide channel is formed between the inner wall of the blank removing pipe (6) and the outer wall of the blank inserting rod (7), the air inlet (12) and the air outlet (14) of the wind guide channel are arranged on the blank removing pipe (6).
7. A heating device according to claim 6, characterised in that The ring chain (4) is provided with a straight line section matched with the oven (3), the rack (1) is provided with a wind box (13) arranged along the straight line section, the blank removing pipe (6) is conveyed along the straight line section and receives the airflow from the wind box (13) through the air inlet (12), the airflow flows through the wind guide channel and is discharged through the air outlet (14), so as to reduce the temperature of the blank inserting part.
8. A heating device according to claim 7, characterised in that The air outlet (14) is a plurality of air outlets and is equidistantly arranged along the circumference of the blank removing pipe (6), or the air inlet (12) and the air outlet (14) are vertically arranged in a long strip shape, so as to increase the coverage area of the airflow on the surface of the blank inserting rod (7).
9. A heating device according to claim 7, wherein The wind box (13) is arranged at the same height as the blank removing pipe (6).
10. A bottle blowing machine, characterized by The device comprises a distance separating and transferring device, a bottle blowing device and the heating device of any one of claims 1-9, the distance separating and transferring device comprises a supporting plate with a transferring channel, the bottle blank (8) is separated from the blank inserting rod (7) and falls on the transferring channel, so that the bottle blank (8) is distance separated and transferred to the bottle blowing device.