A device for pressing and closing the end of an ointment tube

Abstract

This invention relates to a clamping and closing device for the end of an ointment tube, comprising a left fixed frame and a right fixed frame. A left hydraulic cylinder is fixed to the inner bottom of the left fixed frame, and a right hydraulic cylinder is fixed to the inner bottom of the right fixed frame. The output end of the left hydraulic cylinder is connected to a left pressure block, and the output end of the right hydraulic cylinder is connected to a right pressure block. The left pressure block is slidably connected to the left fixed frame, and the right pressure block is slidably connected to the right fixed frame. A second guide hole is provided through the interior of the left pressure block, and a notch is provided on the left end face of the right pressure block. The cross-sectional area and shape of the notch are the same as those of the second guide hole, and the notch is directly opposite the second guide hole. A squeezing part is provided at the bottom of both the left and right pressure blocks, and the positions and heights of the two squeezing parts correspond. The second guide hole and the notch are both located on the upper side of the squeezing part. When the left and right hydraulic cylinders push the left and right pressure blocks to move respectively, the two squeezing parts move towards each other and squeeze the top of the ointment tube.

Description

Technical Field

[0001] This invention relates to the field of pharmaceutical equipment technology, and in particular to a device for pressing and closing the end of an ointment tube. Background Technology

[0002] Ointment tubes are containers used to package ointments, mainly including tin tubes, aluminum tubes or plastic tubes. Pharmaceutical ointment tubes are aluminum flexible tubes widely used in the pharmaceutical industry. They are usually made through processes such as cold extrusion, trimming and cutting, annealing, internal spraying, curing and printing.

[0003] Ointment tubes often suffer from insecure sealing at the tail end after being compressed and closed, leading to leakage during transportation or use. Therefore, it is necessary to bend and press the tail end to create a secure seal. This invention provides an ointment tube tail compression and closure device that effectively solves the problem of insecure sealing at the tail end of ointment tubes. Summary of the Invention

[0004] This invention addresses the technical problems existing in the prior art by providing a device for pressing and closing the tail of an ointment tube.

[0005] The technical solution of the present invention to solve the above-mentioned technical problems is as follows: A tube end clamping and closing device for ointment includes a left fixed frame and a right fixed frame. A left hydraulic cylinder is fixed to the inner bottom of the left fixed frame, and a right hydraulic cylinder is fixed to the inner bottom of the right fixed frame. The output end of the left hydraulic cylinder is connected to a left pressure block, and the output end of the right hydraulic cylinder is connected to a right pressure block. The left pressure block is slidably connected to the left fixed frame, and the right pressure block is slidably connected to the right fixed frame. A second guide hole is provided through the interior of the left pressure block, and a notch is provided on the left end face of the right pressure block. The cross-sectional area and shape of the notch are the same as those of the second guide hole, and the notch is directly opposite the second guide hole. A squeezing part is provided at the bottom of both the left and right pressure blocks, and the positions and heights of the two squeezing parts correspond. The second guide hole and the notch are both located on the upper side of the squeezing part. When the left and right hydraulic cylinders respectively push the left and right pressure blocks to move, the two squeezing parts move towards each other and squeeze the top of the ointment tube.

[0006] Preferably, in the above-mentioned ointment tube end clamping and closing device, a cylinder fixing plate is fixed to the left end of the second guide hole, a cylinder is fixed to the cylinder fixing plate, a bending block is fixed to the output end of the cylinder, the bending block is slidably connected to the inner wall of the second guide hole, and the cylinder is used to push the bending block to move laterally and bend the top end of the ointment tube by 90 degrees.

[0007] Preferably, in the above-mentioned ointment tube end clamping and closing device, the bending pressure block has the same cross-sectional area and shape as the second guide hole.

[0008] Preferably, in the above-mentioned ointment tube end clamping and closing device, the bending pressure block has a cavity inside, the lower end of the cavity penetrates the bottom of the bending pressure block, a motor, a transmission gear, and a half gear are installed inside the cavity, the transmission gear is mounted on the output shaft of the motor, the half gear meshes with the transmission gear, and the center of the half gear is located at the bottom end of the cavity.

[0009] Preferably, in the above-mentioned ointment tube end clamping and closing device, a guide rod is vertically arranged on the right end face of the left pressure block, a first guide hole is penetrating the inside of the right pressure block, and the guide rod is slidably inserted into the inside of the first guide hole, and the guide rod is adapted to the first guide hole.

[0010] Preferably, in the above-mentioned ointment tube end clamping and closing device, the left fixing frame and the right fixing frame are both "U" shaped, and the openings of the left fixing frame and the right fixing frame face each other.

[0011] Preferably, in the above-mentioned ointment tube end clamping and closing device, the top of the left fixing frame is equipped with a first left slide rail, the bottom of the left fixing frame is equipped with a second left slide rail, and the top and bottom of the left pressure block are slidably connected to the first left slide rail and the second left slide rail, respectively.

[0012] Preferably, in the above-mentioned ointment tube end clamping and closing device, the top and bottom of the right fixing frame are respectively equipped with a first right slide rail and a second right slide rail, and the top and bottom of the right pressing block are respectively slidably connected to the first right slide rail and the second right slide rail.

[0013] The beneficial effects of this invention are as follows: When the ointment tube moves between the left and right pressure blocks, the left and right hydraulic cylinders respectively push the left and right pressure blocks to move. The squeezing parts at the bottom of the left and right pressure blocks squeeze the part of the ointment tube near the top. Then, the cylinder pushes the bending pressure block to the right, and the right end of the bending pressure block enters the notch, bending and squeezing the top of the ointment tube at a 90-degree angle. Subsequently, the right hydraulic cylinder actuates to reset the right pressure block, the motor rotates to drive the transmission gear to rotate, and drives the half gear to rotate 90 degrees clockwise. When the half gear rotates, it further bends the end of the ointment tube by 90 degrees and overlaps and presses it with the initial pressing part below it. At this time, the tube tail compression and closure step of the ointment tube is completed. Then, the motor rotates in the opposite direction to reset the half gear, the cylinder drives the bending pressure block to reset, and the left hydraulic cylinder drives the left pressure block to reset. This ointment tube tail compression and closure device solves the problem of insecure sealing at the end of the ointment tube. Attached Figure Description

[0014] Figure 1This diagram shows the positional relationship between the ointment tube and the device before the tube is clamped and closed.

[0015] Figure 2 This is a schematic diagram of the ointment tube after the end of the tube has been initially pressed and closed, but before it is bent.

[0016] Figure 3 for Figure 2 A magnified view of a portion of the image;

[0017] Figure 4 for Figure 3 A schematic diagram of the structure of the ointment tube when it is bent after being tightly closed at the end;

[0018] Figure 5 for Figure 4 A schematic diagram of the structure after the right fixing frame retracts following the compression and closing of the middle ointment tube tail and the bending.

[0019] Figure 6 This is a schematic diagram of the final step in sealing the end of the ointment tube.

[0020] The attached diagram lists the components represented by each number as follows:

[0021] 1. Conveyor belt; 2. Ointment tube positioning sleeve; 3. Ointment tube; 4. Right fixing frame; 5. Left fixing frame; 6. Left hydraulic cylinder; 7. Right hydraulic cylinder; 8. Ointment; 9. Left pressure block; 10. Right pressure block; 11. Notch; 12. First guide hole; 13. Guide rod; 14. Cylinder; 15. Cylinder fixing plate; 16. Bending pressure block; 17. Second guide hole; 18. First left slide rail; 19. Second left slide rail; 20. First right slide rail; 21. Second right slide rail; 22. Half gear; 23. Transmission gear. Detailed Implementation

[0022] The principles and features of the present invention are described below with reference to the accompanying drawings. The examples given are only for explaining the present invention and are not intended to limit the scope of the present invention.

[0023] like Figure 1 - Figure 6As shown, an ointment tube end clamping and closing device includes a left fixed frame 5 and a right fixed frame 4 fixedly mounted on the upper side of a conveyor belt 1. A left hydraulic cylinder 6 is fixed to the inner bottom of the left fixed frame 5, and a right hydraulic cylinder 7 is fixed to the inner bottom of the right fixed frame 4. The output end of the left hydraulic cylinder 6 is connected to a left pressure block 9, and the output end of the right hydraulic cylinder 7 is connected to a right pressure block 10. Both the left fixed frame 5 and the right fixed frame 4 are U-shaped, with their openings facing each other. The left pressure block 9 is slidably connected to the left fixed frame 5, and the right pressure block 10 is slidably connected to the right fixed frame 4. Specifically, a first left slide rail 18 is installed on the top of the left fixed frame 5, and a second left slide rail 19 is installed on the bottom of the left fixed frame 5. The top and bottom of the left pressure block 9 are slidably connected to the first left slide rail 18 and the second left slide rail 19, respectively. The top and bottom of the right fixed frame 4 are respectively equipped with a first right slide rail 20 and a second right slide rail 21, and the top and bottom of the right pressure block 10 are slidably connected to the first right slide rail 20 and the second right slide rail 21.

[0024] A second guide hole 17 is provided through the interior of the left pressure block 9, and a notch 11 is provided on the left end face of the right pressure block 10. The cross-sectional area and shape of the notch 11 are the same as those of the second guide hole 17, and the notch 11 is directly opposite the second guide hole 17. A cylinder fixing plate 15 is fixed to the left end of the second guide hole 17, and a cylinder 14 is fixed on the cylinder fixing plate 15. A bending pressure block 16 is fixed to the output end of the cylinder 14. The bending pressure block 16 is slidably connected to the inner wall of the second guide hole 17. The cylinder 14 is used to push the bending pressure block 16 to move laterally and bend the top end of the ointment tube 3 by 90 degrees. The cross-sectional area and shape of the bending pressure block 16 are the same as those of the second guide hole 17.

[0025] Both the left pressure block 9 and the right pressure block 10 have extrusion sections at their bottoms, with the two extrusion sections positioned at corresponding heights. The second guide hole 17 and the notch 11 are both located on the upper side of the extrusion sections. When the left hydraulic cylinder 6 and the right hydraulic cylinder 7 push the left pressure block 9 and the right pressure block 10 to move respectively, the two extrusion sections move towards each other to extrude pressure on the top of the ointment tube 3. It should be noted that the upper end of the extrusion section is lower than the top height of the ointment tube 3, meaning the extrusion position does not reach the top end, which facilitates subsequent bending and extrusion processing of the top end of the ointment tube 3.

[0026] The bending block 16 has an internal cavity, the lower end of which extends through the bottom of the bending block 16. Inside the cavity are a motor, a transmission gear 23, and a half gear 22. The transmission gear 23 is mounted on the motor's output shaft, and the half gear 22 meshes with it. The center of the half gear 22 is located at the bottom of the cavity. The half gear 22 has more teeth than the transmission gear 23 to increase torque. The motor can be a hydraulic motor or an electric motor.

[0027] A guide rod 13 is vertically arranged on the right end face of the left pressure block 9, and a first guide hole 12 passes through the interior of the right pressure block 10. The guide rod 13 is slidably inserted into the first guide hole 12, and the guide rod 13 is adapted to the first guide hole 12. It plays a guiding role when the left pressure block 9 and the right pressure block 10 move towards each other, preventing the direction from deviating.

[0028] Working principle: such as Figure 1 As shown, an ointment tube positioning sleeve 2 is fixed on the conveyor belt 1. The ointment tube 3 contains ointment 8 and is inverted inside the ointment tube positioning sleeve 2. The left fixing frame 5 and the right fixing frame 4 are located on the upper side of the conveyor belt 1. When the ointment tube 3 moves between the left pressure block 9 and the right pressure block 10, the left hydraulic cylinder 6 and the right hydraulic cylinder 7 respectively push the left pressure block 9 and the right pressure block 10 to move. The squeezing part at the bottom of the left pressure block 9 and the right pressure block 10 squeezes the part of the ointment tube 3 near the top (e.g., Figure 2 , Figure 3 As shown), at this time, a portion of the right side of the top of the ointment tube 3 is still not compressed, and this portion is located within the recess 11. Subsequently, the cylinder 14 pushes the bending block 16 to the right, and the right end of the bending block 16 enters the recess 11, thus bending and compressing the top of the ointment tube 3 at a 90-degree angle (as shown). Figure 4 (As shown). When the bending pressure block 16 moves to the rightmost end of its stroke, the center of the half gear 22 is exactly at the 90-degree bend angle of the ointment tube 3. Then the right hydraulic cylinder 7 actuates to reset the right pressure block 10 (as shown). Figure 5 As shown), the motor rotation drives the transmission gear 23 to rotate, which in turn drives the half gear 22 to rotate 90 degrees clockwise. When the half gear 22 rotates, it further bends the end of the ointment tube 3 by 90 degrees and overlaps and presses it with the initial pressing point on its lower side (as shown). Figure 6 As shown), at this time, the tube tail of the ointment tube 3 is pressed and closed. Then the motor rotates in the opposite direction to reset the half gear 22. The cylinder 14 drives the bending pressure block 16 to reset, and the left hydraulic cylinder 6 drives the left pressure block 9 to reset.

[0029] In the description of this invention, it should be understood that the terms "upper," "lower," "left," and "right," etc., indicating orientation or positional relationships based on the orientation or positional relationships shown in the accompanying drawings, are only for the convenience of describing the invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or a specific orientational structure and operation. Therefore, they should not be construed as limitations on the invention. Furthermore, "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Therefore, a feature defined with "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this invention, unless otherwise stated, "multiple" means two or more.

[0030] In the description of this invention, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," etc., 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 mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal communication between two components. Those skilled in the art can understand the specific meaning of the above terms in this invention based on the specific circumstances.

[0031] The foregoing has provided a detailed description of one embodiment of the present invention, but this description is merely a preferred embodiment and should not be construed as limiting the scope of the invention. All equivalent variations and modifications made within the scope of the claims of this invention should still fall within the patent coverage of this invention.

Claims

1. A device for pressing and closing the end of an ointment tube, characterized in that: The system includes a left fixed frame (5) and a right fixed frame (4). A left hydraulic cylinder (6) is fixed to the inner bottom of the left fixed frame (5), and a right hydraulic cylinder (7) is fixed to the inner bottom of the right fixed frame (4). A left pressure block (9) is connected to the output end of the left hydraulic cylinder (6), and a right pressure block (10) is connected to the output end of the right hydraulic cylinder (7). The left pressure block (9) is slidably connected to the left fixed frame (5), and the right pressure block (10) is slidably connected to the right fixed frame (4). The interior of the left pressure block (9) is penetrating. A second guide hole (17) is provided, and a notch (11) is provided on the left end face of the right pressure block (10). The cross-sectional area and shape of the notch (11) and the second guide hole (17) are the same, and the notch (11) is directly opposite the second guide hole (17). The bottom of the left pressure block (9) and the right pressure block (10) are both provided with extrusion parts, and the positions and heights of the two extrusion parts are corresponding. The second guide hole (17) and the notch (11) are both located on the upper side of the extrusion parts; in the left hydraulic cylinder (6) When the right hydraulic cylinder (7) pushes the left pressure block (9) and right pressure block (10) to move respectively, the two extrusion parts move towards each other to extrude the top of the ointment tube (3). A cylinder fixing plate (15) is fixed to the left end of the second guide hole (17), and a cylinder (14) is fixed on the cylinder fixing plate (15). A bending pressure block (16) is fixed to the output end of the cylinder (14). The bending pressure block (16) is slidably connected to the inner wall of the second guide hole (17). The cylinder (14) is used to push the ointment tube (3). The bending block (16) moves laterally and bends the top of the ointment tube (3) at a 90-degree angle. The bending block (16) has a cavity inside. The lower end of the cavity passes through the bottom of the bending block (16). A motor, a transmission gear (23), and a half gear (22) are installed inside the cavity. The transmission gear (23) is installed on the output shaft of the motor. The half gear (22) meshes with the transmission gear (23). The center of the half gear (22) is located at the bottom of the cavity.

2. The ointment tube end clamping and closing device according to claim 1, characterized in that: The bending block (16) has the same cross-sectional area and shape as the second guide hole (17).

3. The ointment tube end clamping and closing device according to claim 1, characterized in that: A guide rod (13) is vertically arranged on the right end face of the left pressure block (9). A first guide hole (12) is passed through the inside of the right pressure block (10). The guide rod (13) is slidably inserted into the inside of the first guide hole (12). The guide rod (13) is adapted to the first guide hole (12).

4. The ointment tube end clamping and closing device according to claim 1, characterized in that: The left fixed frame (5) and the right fixed frame (4) are both "U" shaped, and the openings of the left fixed frame (5) and the right fixed frame (4) face each other.

5. The ointment tube end clamping and closing device according to claim 4, characterized in that: The top of the left fixed frame (5) is equipped with a first left slide rail (18), and the bottom of the left fixed frame (5) is equipped with a second left slide rail (19). The top and bottom of the left pressure block (9) are slidably connected to the first left slide rail (18) and the second left slide rail (19) respectively.

6. The ointment tube end clamping and closing device according to claim 5, characterized in that: The top and bottom of the right fixed frame (4) are respectively equipped with a first right slide rail (20) and a second right slide rail (21), and the top and bottom of the right pressure block (10) are respectively slidably connected to the first right slide rail (20) and the second right slide rail (21).

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