Injection solution packaging bottle disinfection device

Abstract

The present invention discloses a sterilizing device for injection packaging bottles, comprising a feeding part, a rotating part, a feeding part and a filling and sealing part; the feeding part is a belt conveyor with shields on both sides, and a pushing fork with lateral displacement at the end, wherein the pushing fork can push the workpiece into the rotating part for clamping the workpiece; the rotating part is provided with a plurality of groups of rotating workstations on the circumference, and each group of workstations is provided with a slide that can move vertically, and each group of slides is provided with a bottle rack that can rotate along a horizontal axis, and each group of workstations is provided with a nozzle vertically arranged at the upper and lower ends; the sterilizing device for injection packaging bottles introduces a steam sterilization method, and after the ampoule bottle is cleaned, high-temperature steam sterilization and drying are directly performed to ensure that the ampoule bottle is dry and clean before filling, and at the same time, a negative pressure port is introduced in the filling head to solve the problem of residual liquid droplets in the filling head and avoid liquid medicine contamination.

Description

Technical Field

[0001] The invention relates to the technical field of injection filling equipment, in particular to an injection packaging bottle disinfection device. Background Art

[0002] Most medical injections are filled and stored in ampoules, where the ampoules are sealed with hot melt glass, that is, blowing, filling, and sealing are performed in one process. After blowing, the inner wall needs to be cleaned and disinfected. In the existing technology, most of them are directly filled after washing with hot water, which lacks a sterilization process and requires an additional drying process to ensure that no cleaning solution residue appears in the ampoule before filling. In addition, during the filling process, the filling head adopts an intermittent filling method. When the filling is stopped, droplets will appear at the filling head, which will cause drug liquid contamination after contact with air and affect the accuracy of the next filling amount. Summary of the Invention

[0003] The technical problem to be solved by the present invention is to overcome the existing defects and provide an injection liquid packaging bottle disinfection device, which introduces a steam disinfection method. After the ampoule bottle is cleaned, high-temperature steam disinfection and drying are directly performed to ensure that the ampoule bottle is dry and clean before filling. At the same time, a negative pressure port is introduced in the filling head to solve the problem of residual droplets in the filling head and avoid contamination of the drug solution, which can effectively solve the problems in the background technology.

[0004] To achieve the above-mentioned object, the present invention provides the following technical solutions: an injection bottle sterilization device, comprising a feeding part, a rotating part, a feeding part and a filling and sealing part;

[0005] The loading part is a belt conveyor with shields on both sides and a push fork with lateral displacement at the end. The push fork can push the workpiece into the rotating part for clamping the workpiece;

[0006] The rotary part has several groups of rotating stations arranged on the circumference, and each group of stations is provided with a vertically movable slide, and each group of slides is provided with a bottle rack that can rotate along a horizontal axis, and each group of stations is vertically provided with nozzles at both ends;

[0007] The unloading section is a belt conveyor with shields on both sides. The front end is provided with a pulling fork with a transverse displacement. The pulling fork can transfer the workpiece in the rotating section to the unloading section. The shields on both sides of the end of the unloading section are bent to one side so that the workpiece inside is at an angle α with the vertical direction, 45°≤α≤60°.

[0008] The filling and sealing part includes a packaging rack connected to the feeding part, wherein the packaging rack is sequentially provided with a sorting unit, a filling unit, and a sealing unit;

[0009] The packaging rack has an angle α between the internal workpiece and the vertical direction; the short side is provided with a shield, and the short side corresponding to the sorting unit is provided with an equidistant conveyor belt; the short sides corresponding to the filling unit and the sealing unit are provided with a fixed limit bracket, and also include a motion limit bracket that can transport the workpiece between the sorting unit, the filling unit and the sealing unit in sequence.

[0010] As a preferred technical solution of the present invention, a filling guide seat capable of moving along the axis of the workpiece is provided in the bottle rack, a double-headed conical through hole coaxial with the workpiece is provided in the filling guide seat, and a negative pressure hole is provided on the circumferential wall at the narrow diameter position in the middle of the double-headed conical through hole;

[0011] The nozzle is capable of penetrating the narrow diameter portion of the double-ended conical through hole;

[0012] The diameter of the double-ended conical through hole close to one end of the workpiece is larger than the opening diameter of the workpiece.

[0013] As a preferred technical solution of the present invention, the slide includes a Z-axis linear motor vertically slidably mounted on the rotating portion, an electronic rotating mechanism with a horizontal axis is provided between the Z-axis linear motor and the bottle rack, and a clamping claw for clamping a workpiece is provided on the front end surface of the bottle rack;

[0014] There are several groups of workstations in the rotary part, which pass through the loading and unloading positions in turn. The Z-axis linear motor drives the slide to move up and down, and cooperates with the rotation of the bottle rack to make the workpiece face down at the bottom to be rinsed with cleaning water on the inner wall, and face up at the top to be sterilized and dried with hot steam, and then move to the unloading position for unloading, thus realizing continuous production.

[0015] As a preferred technical solution of the present invention, the front ends of the fixed limit bracket and the action limit bracket are evenly arranged with a plurality of groups of card slots, the packaging frame further includes a Y-axis linear motor that moves along the length direction of the packaging frame, and an electric telescopic rod is provided between the action limit bracket and the Y-axis linear motor, and the axis of the electric telescopic rod is perpendicular to the axis of the workpiece and the length direction of the packaging frame;

[0016] A fixed limiting bracket is used to limit the workpiece, and the front end slot adopts a V-shaped groove or a semicircular groove. When the cylindrical ampoule enters, it can be automatically centered to ensure the axial spacing between adjacent ampoules. The packaging rack is arranged in an inclined manner as a whole. When the ampoule enters the packaging rack from the unloading part, it is naturally arranged in an inclined manner and is clamped in the slot of the fixed limiting bracket.

[0017] A transport method is adopted in which the action-limiting bracket moves forward and then moves horizontally, so that several groups of ampoules are moved from the sorting unit to the filling unit at the same time and at equal intervals. At the same time, the filled ampoules are moved from the filling unit to the sealing unit. During the movement, the distance between adjacent ampoules remains unchanged, which helps to ensure the relative position accuracy of the subsequent filling head, secondary flame spray gun and sealing clamp with the ampoules.

[0018] As a preferred technical solution of the present invention, the finishing unit further includes a first-level flame spray gun capable of heating the upper end of the workpiece, and the angle between the first-level flame spray gun and the workpiece shoulder is β1, 10°≤β1≤45°;

[0019] After the ampoule enters the filling and sealing part from the rotating part, it is preheated by a first-stage flame spray gun. The angle between the spray gun and the axis of the ampoule is small, which can heat most of the bottle body and help to heat and discharge most of the gas in the ampoule, making the air pressure inside the bottle lower than that outside, which is convenient for subsequent filling.

[0020] At the same time, it helps to avoid cracking of the ampoule caused by rapid heating during subsequent sealing.

[0021] As a preferred technical solution of the present invention, the filling unit includes a filling head that overlaps with the axis of the workpiece in the fixed limiting bracket and a telescopic rod that drives the filling head to move axially. The inlet port of the filling head has a larger diameter than the outlet port, and an expanded hollow cavity is provided in the middle. The upper side of the hollow cavity is connected to a negative pressure port. When the filling head is installed at an angle, the negative pressure port is at the highest point of the hollow cavity.

[0022] During intermittent filling, liquid residue will appear at the liquid outlet, and even residual liquid will fall onto the outer wall of the ampoule. The hollow cavity design with a large belly is adopted. When the filling is stopped, negative pressure is introduced into the negative pressure port to suck the liquid in the slender tube at the outlet back into the hollow cavity. At the same time, the hollow cavity is in a negative pressure state, and the liquid will not flow down, effectively avoiding the problem of residual droplets.

[0023] At the same time, for equipment with inaccurate liquid injection control, during negative pressure suction, the remaining amount of liquid in the ampoule is directly related to the insertion amount of the filling head, which can effectively ensure that the remaining amount of liquid in each group of ampoules is the same.

[0024] As a preferred technical solution of the present invention, the filling unit further comprises a filling seat for synchronously fixing a plurality of groups of filling heads; an outer shield which can be closed toward the middle to form a complete enclosure for the filling heads is provided below the filling seat;

[0025] After installing the outer protective cover, when filling is stopped, the outer protective cover closes and wraps the filling head to prevent the filling head from direct contact with the outside air and reduce the probability of contamination. At the same time, when the machine is shut down for a long time, such as resting at night or when the equipment is being repaired, special gases such as ozone can be introduced into the outer protective cover to immerse the filling head in ozone to prevent bacteria from growing on its surface.

[0026] As a preferred technical solution of the present invention, a hollow elastic sealing strip is provided at the edge of the closed lower end of the outer shield; when the filling head is inserted into the workpiece for filling, the outer shield is closed, and the elastic sealing strip can deform after being fitted with the outer wall of the workpiece, forming a closed space that wraps the filling head and the workpiece filling port;

[0027] For ampoules with smaller openings, when filling, after the filling head is inserted, the remaining diameter of the opening is small, and the internal gas is difficult to escape, resulting in obstruction of filling; or when filling some drugs that are sensitive to air, a closed outer shield can be used for closed filling. That is, when filling, after the filling head is inserted into the ampoule, the outer shield is closed, and at the same time, the outer shield is connected to an external negative pressure device to pump negative pressure inside the outer shield. At this time, the ampoule is synchronously negatively pressurized, and when filling is performed again, the drug liquid can directly enter the ampoule without obstruction.

[0028] As a preferred technical solution of the present invention, the sealing unit includes two-stage flame spray guns arranged on both sides of the workpiece, the angle between the two-stage flame spray guns and the axis of the workpiece is β2, 45°≤β2≤90°; and also includes a sealing clamp placed above the workpiece and capable of moving along the axis of the workpiece;

[0029] A telescopic rod is provided along the axis at the rear end of the secondary flame spray gun to control the axis feed of the secondary flame spray gun and adjust the distance between the flame ignition point and the ampoule bottle so that the highest temperature point of the flame overlaps with the ampoule bottle, causing the bottle body to melt quickly. At the same time, the angle between the secondary flame spray gun and the ampoule bottle is larger than that of the primary flame spray gun, and the flame action area is smaller and more concentrated, which reduces the baking of the liquid storage area, shortens the glass melting time, and shortens the sealing process time;

[0030] When the mouth of the ampoule bottle is melted, the sealing jaws move downward under the action of the telescopic rod, engage with the melted position and lift it up, thereby completing the closure of the mouth of the ampoule bottle.

[0031] As a preferred technical solution of the present invention, a discharge unit is provided at the end of the packaging rack, and the fixed limit bracket and the action limit bracket both cover the discharge unit. The discharge unit includes a discharge tray arranged horizontally and connected to the packaging rack, and a discharge lever that straightens the tilted workpiece in the packaging rack and pushes it into the discharge tray through its own rotation;

[0032] By adding a discharge unit, after the ampoule is sealed, the limited bracket is moved again to the end of the packaging rack. At this time, the distance between adjacent ampoules remains stable and they will not collide with each other, which helps to avoid collision and deformation of the bottle mouth just after hot melt closure. After a short period of cooling, the ampoule is straightened by the discharge lever and enters the discharge tray for the next packaging process.

[0033] Compared with the prior art, the present invention has the following beneficial effects: the device for sterilizing injection packaging bottles adopts a rotary workbench, and after the ampoule is inverted for cleaning, the internal cleaning water can flow out quickly, and high-temperature steam sterilization is performed at the top of the rotary part. The high temperature of the steam is used to achieve rapid drying of the inner wall of the ampoule, thus combining the sterilization and drying processes into one, shortening the process flow, reducing the process time, and improving processing efficiency;

[0034] At the same time, the rotary workbench design is adopted, and the ampoule bottle can move in the vertical direction, making full use of the vertical space and reducing the overall footprint of the equipment;

[0035] At the same time, during the filling and sealing process, the ampoule is placed at an angle throughout the process, which is conducive to liquid filling. The filling head adopts a large belly cavity combined with a negative pressure port design, which effectively reduces the residual liquid at the liquid outlet and avoids pollution caused by residual liquid dripping. At the same time, it reduces the contact between the liquid and the air in the filling head and reduces the probability of liquid contamination. BRIEF DESCRIPTION OF THE DRAWINGS

[0036] Figure 1 It is a schematic diagram of the structure of the present invention;

[0037] Figure 2 It is a schematic diagram of the structure of the present invention from another angle;

[0038] Figure 3 This is a schematic diagram of the filling and sealing portion of the present invention;

[0039] Figure 4 This is a schematic diagram of the packaging frame of the present invention;

[0040] Figure 5 A top view of the present invention;

[0041] Figure 6 A schematic diagram of the slide of the present invention;

[0042] Figure 7 is a cross-sectional view of the carriage of the present invention;

[0043] Figure 8 This is a schematic diagram of the filling guide seat of the present invention;

[0044] Figure 9 This is a schematic cross-sectional view at AA of the present invention;

[0045] Figure 10This is a schematic cross-sectional view at point BB of the present invention;

[0046] Figure 11 This is a schematic cross-sectional view at CC of the present invention;

[0047] Figure 12 This is a schematic cross-sectional view at DD of the present invention;

[0048] Figure 13 This is a schematic diagram of the filling head of the present invention;

[0049] Figure 14 It is a schematic diagram of the rotary part station of the present invention.

[0050] In the figure: 1. Rotating unit; 101. Upper nozzle; 102. Lower nozzle; 2. Slide; 201. Z-axis linear motor; 202. Bottle rack; 203. Clamping claw; 204. Filling guide seat; 205. First telescopic rod; 3. Loading unit; 301. Push fork; 4. Unloading unit; 401. Pull fork; 402. Inner shield; 403. Outer shield; 404. Bottom conveyor belt; 5. Sorting unit; 501. First-stage flame spray gun; 5 02. Equidistant conveyor belt; 6. Filling unit; 601. Filling seat; 602. Filling head; 603. Outer shield; 6031. Elastic sealing strip; 7. Sealing unit; 701. Sealing jaws; 702. Two-stage flame spray gun; 8. Unloading unit; 801. Unloading lever; 802. Unloading tray; 9. Packaging rack; 901. Fixed limit bracket; 902. Motion limit bracket; 903. Bottom support plate; 904. Y-axis linear motor. DETAILED DESCRIPTION

[0051] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0052] See also Figures 1-14 , the present invention provides a technical solution: a sterilizing device for injection packaging bottles, comprising a feeding part 3, a rotating part 1, a feeding part 4 and a filling and sealing part;

[0053] The loading part 3 is a belt conveyor with shielding on both sides and a push fork 301 with lateral displacement at the end. The push fork 301 can push the workpiece into the rotating part 1 for clamping the workpiece;

[0054] The rotary part 1 is provided with several groups of rotating stations on the circumference, and each group of stations is provided with a vertically movable slide 2, and each group of slides 2 is provided with a bottle rack 202 that can rotate along a horizontal axis, and each group of stations is provided with nozzles vertically at the upper and lower ends;

[0055] The nozzle rotates synchronously with the rotating part 1, and the upper nozzle 101 at the top is connected to the external high-pressure steam generator. The upper nozzle 101 can pass through the narrow diameter of the filling guide seat 204 and be inserted into the ampoule bottle to spray high-temperature and high-pressure steam, sterilizing the inner wall of the bottle at high temperature and high pressure. At the same time, the high-temperature and high-pressure steam vaporizes the residual liquid in the bottle, which escapes with the steam flow, is captured by the negative pressure hole 204b, and is promptly discharged outside the equipment.

[0056] The lower nozzle 102 at the lower end is connected to an external cleaning water source and can be inserted into an inverted ampoule bottle to spray high-pressure water to clean the inner wall of the bottle. The cleaning water automatically flows out under the action of gravity and is captured by the negative pressure hole 204b and discharged to the outside of the device in time, effectively avoiding water accumulation inside the device.

[0057] At the same time, in the bottle rack 202, by adding a first telescopic rod 205, the filling guide seat 204 can be raised and lowered, so that the negative pressure hole 204b is closer to the opening of the ampoule bottle, which is more conducive to collecting waste water and waste gas.

[0058] The unloading section 4 is a belt conveyor with shields on both sides. The front end is provided with a pulling fork 401 with a transverse displacement. The pulling fork 401 can transfer the workpiece in the rotating section 1 to the unloading section 4. The shields on both sides of the end of the unloading section 4 are bent to one side so that the workpiece inside is at an angle α with the vertical direction, 45°≤α≤60°.

[0059] See Figure 2 The pushing fork 301 and the pulling fork 401 are both molds that match the shape of the workpiece, and are provided with telescopic rods along the direction of movement; the distance between adjacent workpieces in the molds of the pushing fork 301 and the pulling fork 401 is equal to the distance between workpieces in the bottle rack 202, and a negative pressure suction port is provided at the contact position with the workpiece in the mold, which can adsorb the bottle body when pushing and pulling the ampoule bottle to prevent the ampoule bottle from falling off;

[0060] When designing the loading part 3 and the unloading part 4, attention should be paid to the design of the shielding on both sides. For example, the inner shielding 402 at the corresponding positions of the push fork 301 and the pull fork 401 is missing, and the inner shielding 402 and the outer shielding 403 at the end of the unloading part 4 are bent obliquely downward, and the extension length of the inner shielding 402 is greater than that of the outer shielding 403; at the same time, the bottom conveyor belts 404 in the loading part 3 and the unloading part 4 are made of surface materials with a large friction coefficient to prevent the ampoule bottle from sliding on the conveyor belt surface.

[0061] See Figure 3, the filling and sealing part includes a packaging rack 9 connected to the feeding part 4, and the packaging rack 9 is sequentially provided with a sorting unit 5, a filling unit 6, and a sealing unit 7;

[0062] See Figure 4 , packaging rack 9, the angle α between the internal workpiece and the vertical direction; a shield is provided on the short side, and an equidistant conveyor belt 502 is provided on the short side corresponding to the sorting unit 5; a fixed limiting bracket 901 is provided on the short side corresponding to the filling unit 6 and the sealing unit 7, and also includes a motion limiting bracket 902 that can transport the workpiece between the sorting unit 5, the filling unit 6 and the sealing unit 7 in sequence.

[0063] See Figure 8 A filling guide seat 204 capable of moving along the axis of the workpiece is provided in the bottle rack 202. A double-headed conical through hole 204a coaxial with the workpiece is provided in the filling guide seat 204. A negative pressure hole 204b is provided on the circumferential wall of the narrow diameter position in the middle of the double-headed conical through hole 204a.

[0064] The nozzle can penetrate the narrow diameter portion of the double-ended conical through hole 204a;

[0065] Furthermore, the diameter of the double-ended conical through hole 204a close to one end of the workpiece is larger than the diameter of the opening of the workpiece.

[0066] See Figure 6-Figure 7 The slide 2 includes a Z-axis linear motor 201 vertically slidably mounted on the rotating portion 1. An electronic rotary mechanism with a horizontal axis is provided between the Z-axis linear motor 201 and the bottle rack 202. The front end surface of the bottle rack 202 is provided with a clamping claw 203 for clamping a workpiece.

[0067] Several groups of workstations are arranged in the rotating part 1, which pass through the loading position and the unloading position in sequence. The slide 2 is driven up and down by the action of the Z-axis linear motor 201, and cooperates with the rotation of the bottle rack 202 to make the workpiece flush with the inner wall of the cleaning water with the bottom opening facing downward, and sterilize and dry with hot steam with the top opening facing upward, and then move to the unloading position for unloading, thereby realizing continuous production.

[0068] See Figure 4 , the front ends of the fixed limiting bracket 901 and the action limiting bracket 902 are evenly arranged with a plurality of groups of card slots, the packaging frame 9 also includes a Y-axis linear motor 904 that moves along the length direction of the packaging frame 9, and an electric telescopic rod is provided between the action limiting bracket 902 and the Y-axis linear motor 904, and the axis of the electric telescopic rod is perpendicular to the axis of the workpiece and the length direction of the packaging frame 9;

[0069] A fixed limiting bracket 901 is used to limit the workpiece, and the front end slot is a V-shaped groove or a semicircular groove. When a cylindrical ampoule enters, it can be automatically centered, which is convenient for ensuring the axial spacing between adjacent ampoules. The packaging rack 9 is arranged as a whole in an inclined manner. When the ampoule enters the packaging rack 9 from the discharge part 4, it is naturally arranged in an inclined manner and is clamped in the slot of the fixed limiting bracket 901.

[0070] The bottom of the packaging rack 9 uses a bottom support plate 903 with a right-angled cross section to support the bottom of the ampoule bottle, and uses a surface material with a small friction coefficient to reduce the sliding friction between the bottom of the ampoule bottle and the bottom support plate 903.

[0071] By adopting a transport mode in which the action limiting bracket 902 moves forward and then moves horizontally, several groups of ampoules are moved simultaneously and at equal intervals from the sorting unit 5 to the filling unit 6, and at the same time, the filled ampoules are moved from the filling unit 6 to the sealing unit 7. During the movement, the distance between adjacent ampoules remains unchanged, which helps to ensure the relative position accuracy of the subsequent filling head 602, the secondary flame spray gun 702 and the sealing jaws 701 and the ampoules.

[0072] See Figure 3 、 Figure 5 and Figure 12 The finishing unit 5 further includes a first-level flame spray gun 501 capable of heating the upper end of the workpiece, and the angle between the first-level flame spray gun 501 and the workpiece shoulder is β1, 10°≤β1≤45°;

[0073] After the ampoule enters the filling and sealing section from the rotating section 1, it is preheated initially by the first-stage flame spray gun 501. The angle between the spray gun and the axis of the ampoule is small, which can heat most of the bottle body, helping to heat and discharge most of the gas in the ampoule, making the air pressure inside the bottle lower than that outside, which is convenient for subsequent filling;

[0074] At the same time, it helps to avoid cracking of the ampoule caused by rapid heating during subsequent sealing.

[0075] See Figure 3 、 Figure 5 、 Figure 11 and Figure 13 The filling unit 6 includes a filling head 602 that overlaps the axis of the workpiece in the fixed limiting bracket 901 and a telescopic rod that drives the filling head 602 to move axially. The inlet end 602a of the filling head 602 has a larger diameter than the outlet end 602d. An expanded hollow cavity 602b is provided in the middle, and a negative pressure port 602c is provided on the upper side of the hollow cavity 602b. When the filling head 602 is installed at an angle, the negative pressure port 602c is located at the highest point of the hollow cavity 602b.

[0076] During intermittent filling, liquid residue may appear at the liquid outlet, and may even drop onto the outer wall of the ampoule. With the design of a large hollow cavity 602b, when filling is stopped, negative pressure is introduced into the negative pressure port 602c, sucking the liquid in the slender tube at the outlet end 602d back into the hollow cavity 602b. At the same time, the hollow cavity 602b is in a negative pressure state, so the liquid does not flow down, effectively avoiding the problem of residual liquid droplets.

[0077] At the same time, for devices with inaccurate liquid injection control, during negative pressure back suction, the remaining amount of liquid in the ampoule bottle is directly related to the insertion amount of the filling head 602, which can effectively ensure that the remaining amount of liquid in each group of ampoules is the same.

[0078] See Figure 3 、 Figure 5 and Figure 11 The filling unit 6 further includes a filling seat 601 for synchronously fixing a plurality of groups of filling heads 602; an outer shield 603 that can be closed toward the middle to completely wrap the filling heads 602 is provided below the filling seat 601;

[0079] After the outer protective cover 603 is installed, when filling is stopped, the outer protective cover 603 closes and wraps the filling head 602 to prevent the filling head 602 from direct contact with the outside air, thereby reducing the probability of contamination. At the same time, when the machine is shut down for a long time, such as resting at night or when the equipment is being repaired, special gases such as ozone can be introduced into the outer protective cover 603 to immerse the filling head 602 in ozone to prevent bacteria from growing on its surface.

[0080] A hollow elastic sealing strip 6031 is provided at the edge of the closed lower end of the outer shield 603. When the filling head 602 is inserted into the workpiece for filling, the outer shield 603 is closed, and the elastic sealing strip 6031 can conform to the outer wall of the workpiece and deform to form a closed space that wraps the filling head 602 and the workpiece filling port.

[0081] For ampoules with smaller openings, when filling, after the filling head 602 is inserted, the remaining diameter of the opening is small, and the gas inside is difficult to escape, resulting in obstruction of filling; or when filling certain medicines that are sensitive to air, a closed outer protective cover 603 can be used for closed filling, that is, during filling, after the filling head 602 is inserted into the ampoule, the outer protective cover 603 is closed, and at the same time, the outer protective cover 603 is connected to an external negative pressure device to pump negative pressure inside the outer protective cover 603. At this time, the ampoule is synchronously negatively pressurized, and when filling is performed again, the medicine liquid can directly enter the ampoule without obstruction.

[0082] See Figure 3 、 Figure 5 and Figure 10The sealing unit 7 includes two-stage flame spray guns 702 arranged on both sides of the workpiece, and the angle between the two-stage flame spray guns 702 and the axis of the workpiece is β2, 45°≤β2≤90°; and also includes a sealing clamp 701 placed above the workpiece and capable of moving along the axis of the workpiece;

[0083] A telescopic rod is provided along the axis at the rear end of the secondary flame spray gun 702 to control the axis feed of the secondary flame spray gun and adjust the distance between the flame ignition point and the ampoule bottle so that the highest temperature point of the flame overlaps with the ampoule bottle, causing the bottle body to melt quickly. At the same time, the angle between the secondary flame spray gun 702 and the ampoule bottle is larger than that of the primary flame spray gun 501, and the flame action area is smaller and more concentrated, which reduces the baking of the liquid storage area, shortens the glass melting time, and shortens the sealing process time.

[0084] When the mouth of the ampoule bottle is melted, the sealing jaws 701 move downward under the action of the telescopic rod, engage with the melted position and lift it up, thereby completing the closure of the mouth of the ampoule bottle.

[0085] See Figure 3 、 Figure 5 and Figure 9 , a discharge unit 8 is provided at the end of the packaging rack 9, and a fixed limiting bracket 901 and a motion limiting bracket 902 both cover the discharge unit 8. The discharge unit 8 includes a discharge tray 802 that is horizontally arranged and connected to the packaging rack 9, and a discharge lever 801 that straightens the tilted workpiece in the packaging rack 9 and pushes it into the discharge tray 802 by rotating itself;

[0086] The addition of the unloading unit 8 allows the ampoule to be moved again to the tail end of the packaging rack 9 by the action limiting bracket 902 after sealing. At this time, the distance between adjacent ampoules is still stable and will not collide with each other, which helps to avoid the collision and deformation of the bottle mouth just after hot melting closure. After a short period of cooling, the ampoule is straightened by the unloading lever 801 and enters the unloading tray 802 for the next packaging process.

[0087] See Figure 14 Taking the 12-station rotary part 1 as an example, the loading part 3 is set in the middle position of the rotary part 1. Here, the ampoule bottle is pushed into the corresponding bottle rack 202 by the push fork 301 and fixed by the clamping claw 203. At this time, the slide 2 is at the middle height;

[0088] After the ampoule is fixed, the rotating part 1 rotates 30 degrees. During the rotation, the bottle holder 202 rotates along the horizontal axis relative to the slide 2 under the action of the electronic rotating mechanism, that is, the mouth of the ampoule faces downward, and the slide 2 moves downward until the lower nozzle 102 is inserted into the ampoule.

[0089] At this time, the rotating part 1 continues to rotate, each time the rotation angle is 30 degrees. When the rotation angle is between 30 degrees and 120 degrees, the lower nozzle 102 is inserted into the ampoule bottle and high-pressure cleaning water is injected into the ampoule bottle. The cleaning water flows out from the ampoule bottle mouth and is received by the negative pressure hole 204b.

[0090] When the rotating part 1 rotates between 120° and 150°, the slide 2 moves up to the highest end, and during the process, the bottle rack 202 rotates until the bottle mouth faces upward;

[0091] When the rotary part 1 rotates between 150° and 240°, the upper nozzle 101 is inserted into the ampoule and injects high-pressure and high-temperature steam into the ampoule. The exhaust gas escapes through the ampoule mouth and is received by the negative pressure hole 204b.

[0092] When the rotary part 1 rotates between 240° and 270°, the slide 2 moves downward part of the stroke, so that the upper nozzle 101 is separated from the ampoule bottle;

[0093] When the rotating part 1 rotates to 300 degrees, the ampoule bottle moves into the discharge part 4 under the action of pulling the shift fork 401;

[0094] When the rotary part 1 rotates 300°-360°, the slide 2 without the ampoule bottles moves to the initial position to carry the next round of ampoule bottles.

[0095] After the ampoule enters the filling and sealing part, it first enters the sorting unit 5, is arranged at equal intervals, and is preheated. Then, under the action of the action limiting bracket 902, it enters the filling unit 6. The filling head 602 is pressed down, the ampoule is inserted, and filling is completed. After the end, the ampoule is again shifted to the sealing unit 7 under the action of the action limiting bracket 902. The ampoule is heated to melt under the action of the secondary flame spray gun 702. The sealing jaws 701 are pressed down to clamp and seal, and after lifting and breaking, they open and close, and the waste falls automatically.

[0096] Subsequently, the ampoule enters the unloading unit 8, and after a short cooling, enters the unloading tray 802 under the action of the unloading lever 801, waiting for the next step.

[0097] While embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions, and variations may be made to these embodiments without departing from the principles and spirit of the invention, and that the scope of the invention is defined by the appended claims and their equivalents.

Claims

1. A sterilizing device for injection packaging bottles, characterized by: It includes a feeding part (3), a rotating part (1), a feeding part (4) and a filling and sealing part; The loading part (3) is a belt conveyor with shielding on both sides and a push fork (301) with lateral displacement at the end, wherein the push fork (301) can push the workpiece into the rotating part (1) to form a mechanism for clamping the workpiece; The rotary portion (1) is provided with a plurality of groups of rotating workstations on the circumference, and each group of workstations is provided with a vertically movable slide (2), and each group of slides (2) is provided with a bottle rack (202) that can rotate along a horizontal axis, and each group of workstations is provided with nozzles vertically at both ends; The unloading section (4) is a belt conveyor with shields on both sides, and a pulling fork (401) with a lateral displacement at the head end, wherein the pulling fork (401) can transfer the workpiece in the rotating section (1) to the unloading section (4); the shields on both sides of the end of the unloading section (4) are bent to one side so that the internal workpiece has an angle α with the vertical direction, 45°≤α≤60°; A filling and sealing portion, comprising a packaging frame (9) connected to the feeding portion (4), wherein a sorting unit (5), a filling unit (6), and a sealing unit (7) are sequentially arranged in the packaging frame (9); A packaging rack (9) wherein the workpiece inside forms an angle α with the vertical direction; a shield is provided on the short side, and an equidistant conveyor belt (502) is provided on the short side corresponding to the arrangement unit (5); a fixed limiting bracket (901) is provided on the short side corresponding to the filling unit (6) and the sealing unit (7), and further includes a motion limiting bracket (902) capable of transporting the workpiece in sequence between the arrangement unit (5), the filling unit (6) and the sealing unit (7); The filling unit (6) comprises a filling head (602) overlapping with the axis of the workpiece in the fixed limiting bracket (901) and a telescopic rod driving the filling head (602) to move axially. The inlet end (602a) of the filling head (602) has a larger diameter than the outlet end (602d), and an expanded hollow cavity (602b) is provided in the middle. A negative pressure port (602c) is provided on the upper side of the hollow cavity (602b). When the filling head (602) is installed at an angle, the negative pressure port (602c) is located at the highest point of the hollow cavity (602b).

2. The injection bottle disinfection device according to claim 1, characterized in that: A filling guide seat (204) capable of moving along the axis of a workpiece is provided in the bottle rack (202); a double-headed conical through hole (204a) coaxial with the workpiece is provided in the filling guide seat (204); a communicating negative pressure hole (204b) is provided on the circumferential wall at the narrow diameter position in the middle of the double-headed conical through hole (204a); The nozzle is capable of penetrating the narrow diameter portion of the double-ended conical through hole (204a); The diameter of the double-ended conical through hole (204a) close to one end of the workpiece is larger than the diameter of the opening of the workpiece.

3. The injection bottle disinfection device according to claim 2, characterized in that: The slide (2) comprises a Z-axis linear motor (201) vertically slidably mounted on the rotating portion (1); an electronic rotating mechanism with a horizontal axis is provided between the Z-axis linear motor (201) and the bottle rack (202); and a clamping claw (203) for clamping a workpiece is provided on the front end surface of the bottle rack (202).

4. The injection bottle disinfection device according to claim 1, characterized in that: The front ends of the fixed limiting bracket (901) and the action limiting bracket (902) are both evenly arranged with a plurality of groups of card slots. The packaging frame (9) further comprises a Y-axis linear motor (904) that moves along the length direction of the packaging frame (9). An electric telescopic rod is provided between the action limiting bracket (902) and the Y-axis linear motor (904). The axis of the electric telescopic rod is perpendicular to the axis of the workpiece and the length direction of the packaging frame (9).

5. The injection bottle disinfection device according to claim 1, characterized in that: The finishing unit (5) further comprises a first-stage flame spray gun (501) capable of heating the upper end of the workpiece, wherein the first-stage flame spray gun (501) and the workpiece shoulder have an included angle β1, 10°≤β1≤45°.

6. The device for sterilizing injection bottles according to claim 1, characterized in that: The filling unit (6) further comprises a filling seat (601) for synchronously fixing a plurality of groups of filling heads (602); an outer protective cover (603) is provided below the filling seat (601) and can be closed toward the middle to form a completely enveloping outer protective cover (603) for completely enveloping the filling heads (602).

7. The device for sterilizing injection bottles according to claim 6, characterized in that: A hollow elastic sealing strip (6031) is provided at the edge of the closed portion of the lower end of the outer shield (603); when the filling head (602) is inserted into the workpiece for filling, the outer shield (603) is closed, and the elastic sealing strip (6031) can deform after being fitted with the outer wall of the workpiece, forming a closed space that encloses the filling head (602) and the workpiece filling port.

8. The device for sterilizing injection bottles according to claim 7, characterized in that: The sealing unit (7) comprises two-stage flame spray guns (702) arranged on both sides of the workpiece, wherein the angle between the two-stage flame spray guns (702) and the axis of the workpiece is β2, 45°≤β2≤90°; and a sealing clamp (701) placed above the workpiece and capable of moving along the axis of the workpiece.

9. The device for sterilizing injection bottles according to claim 1, characterized in that: A discharge unit (8) is provided at the end of the packaging rack (9), the fixed limiting bracket (901) and the action limiting bracket (902) both cover the discharge unit (8), and the discharge unit (8) comprises a discharge tray (802) arranged horizontally and connected to the packaging rack (9), and a discharge lever (801) which, by rotating itself, straightens an inclined workpiece in the packaging rack (9) and pushes it into the discharge tray (802).

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