A filling amount adjusting mechanism for a hose filling and sealing machine

Abstract

This utility model relates to the field of filling and sealing machine technology, specifically to a filling volume adjustment mechanism for a flexible tube filling and sealing machine. The mechanism includes a rotary valve, which comprises a pump body, a cylinder, a nozzle, a valve core, a material cylinder, a piston sleeve, and a connecting rod. The piston sleeve is inserted into the left side of the inner wall of the pump body. A through groove is formed on the inner wall of the piston sleeve, and a piston head is inserted into the inner wall of the through groove. An installation groove is formed on the outer side of the piston head, and a sealing ring is installed on the inner wall of the installation groove. A rotating rod is inserted into the inner wall of the piston head. During disassembly, the entire piston can be pulled out of the rotary valve, and then the fixing structure between the piston sleeve and the piston head can be loosened to allow for individual replacement of any component, thereby reducing replacement costs. Simultaneously, the sealing ring enhances the overall sealing performance of the piston, facilitating precise adjustment of the filling volume and improving the operating efficiency of the filling and sealing machine.

Description

Technical Field

[0001] This utility model relates to the field of filling and sealing machine technology, and more specifically, to a filling volume adjustment mechanism for a tube filling and sealing machine. Background Technology

[0002] In modern industrial production, with increasingly diversified market demands and continuous improvement in product quality standards, the production and packaging processes of various products have placed higher demands on precision and flexibility. As a common form of packaging, flexible tubes are widely used in many industries, and the quality of their filling and sealing processes directly affects the market competitiveness of the final product and the production efficiency of enterprises.

[0003] Most existing tube filling and sealing machines use a fixed filling system. Once the equipment is debugged and put into production, its single filling capacity is fixed, making it difficult to adjust flexibly according to actual production needs. Because such equipment is not equipped with a filling volume adjustment mechanism, it cannot meet the dynamic adjustment requirements during the production process, resulting in a large filling volume error. Although existing filling and sealing machines attempt to adjust the filling volume by driving the piston movement with a connecting rod to adjust the volume of the rotary valve cavity in real time, the matching structure between the piston sleeve and the piston head is relatively fixed. During later maintenance or parts replacement, the entire piston assembly needs to be replaced, which not only increases the maintenance cost of the equipment but also adversely affects the normal use effect of the filling and sealing machine. Utility Model Content

[0004] In order to overcome the above-mentioned defects of the prior art, this utility model provides a filling volume adjustment mechanism for a tube filling and sealing machine, so as to solve the problem that in the prior art, the matching structure between the piston sleeve and the piston head is relatively fixed. When maintaining or replacing parts, the entire piston assembly needs to be replaced, which not only increases the maintenance cost of the equipment, but also has an adverse effect on the normal use effect of the filling and sealing machine.

[0005] To solve the above-mentioned technical problems, this utility model provides the following technical solution: a filling volume adjustment mechanism for a hose filling and sealing machine, including a rotary valve, the rotary valve being composed of a pump body, a cylinder, a nozzle, a valve core, a material cylinder, a piston sleeve, and a connecting rod. The piston sleeve is inserted into the left side of the inner wall of the pump body. A through groove is opened on the inner wall of the piston sleeve, and a piston head is inserted into the inner wall of the through groove. An installation groove is opened on the outer side of the piston head, and a sealing ring is installed on the inner wall of the installation groove. A rotating rod is inserted into the inner wall of the piston head, and the right part of the connecting rod is sleeved on the outer side of the rotating rod.

[0006] The piston sleeve has insertion grooves on both the front and rear sides, and a fitting groove is formed on the inner wall of the insertion groove. A fixing bolt is inserted into the inner wall of the insertion groove, and a washer is fitted on the outer side of the fixing bolt. Threaded grooves are formed at both the front and rear ends of the rotating rod.

[0007] Among them, the adjacent parts of the fixing bolts on the front and rear sides are threadedly connected to the threaded groove, and the washer is installed on the inner wall of the fitting groove, and the side away from the rotating rod is in contact with the fixing bolt.

[0008] The piston head has multiple positioning inserts installed in the middle, and springs are sleeved on the outer side of the positioning inserts. The piston sleeve has multiple positioning slots on the right end.

[0009] The left part of the positioning insert is inserted into the inner wall of the positioning slot.

[0010] The left end of the spring is fitted with the piston sleeve, and the right end is fitted with the piston head, and the spring is in a compressed state.

[0011] The rotating rod has insertion slots at both ends, the piston head is inserted into the inner wall of the pump body, the cylinder is installed on the right side of the pump body, the nozzle is installed at the bottom of the pump body, the valve core is inserted into the inner wall of the nozzle and its top end is installed between the cylinder output end and the material cylinder is installed on the top of the pump body.

[0012] Compared with the prior art, the beneficial effects of this utility model are:

[0013] In the above solution, during disassembly, the entire piston can be pulled out of the rotary valve, and then the fixing structure between the piston sleeve and the piston head can be loosened to replace any one of the components individually, thereby reducing replacement costs. At the same time, by setting a sealing ring, the overall sealing performance of the piston is enhanced, which facilitates the subsequent precise adjustment of the filling volume and improves the operating effect of the filling and sealing machine. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0015] Figure 2 This is a schematic diagram of the linkage structure of this utility model;

[0016] Figure 3 This is a right view of the piston head of this utility model;

[0017] Figure 4 for Figure 3 Cross-sectional view of the structure at point AA;

[0018] Figure 5 This is a schematic diagram of the positioning slot structure of this utility model;

[0019] Figure 6 This is a front view of the piston sleeve of this utility model;

[0020] Figure 7 for Figure 6 Cross-sectional view of part of the structure at point BB.

[0021] [Figure Labels]

[0022] 1. Pump body; 2. Cylinder; 3. Nozzle; 4. Valve core; 5. Material cylinder; 6. Rotary valve; 7. Piston sleeve; 8. Connecting rod; 9. Piston head; 10. Fixing bolt; 11. Positioning insert; 12. Spring; 13. Sealing ring; 14. Rotating rod; 15. Through groove; 16. Positioning slot; 17. Mounting groove; 18. Gasket; 19. Insertion groove; 20. Fitting groove; 21. Threaded groove. Detailed Implementation

[0023] To make the technical problems, technical solutions and advantages of this utility model clearer, a detailed description will be given below in conjunction with the accompanying drawings and specific embodiments.

[0024] Example 1: Please refer to Figures 1 to 7 This utility model provides a technical solution: a filling volume adjustment mechanism for a tube filling and sealing machine, including a rotary valve 6. The rotary valve 6 is composed of a pump body 1, a cylinder 2, a nozzle 3, a valve core 4, a material cylinder 5, a piston sleeve 7, and a connecting rod 8. When the rotary valve 6 is opened, the inner cavity of the rotary valve 6 is connected to the nozzle 3, and the inner cavity of the rotary valve 6 is disconnected from the material cylinder 5. The valve core 4 moves upward under the action of the cylinder 2, opening the nozzle 3. At the same time, it pushes the connecting rod 8 to drive the entire piston to move in the inner cavity of the rotary valve 6 and fill, thereby controlling the filling volume. The piston sleeve 7 is inserted into the left side of the inner wall of the pump body 1. The inner wall of the piston sleeve 7 has a through groove 15, and a piston head is inserted into the inner wall of the through groove 15. 9. An installation groove 17 is provided on the outer side of the piston head 9. A sealing ring 13 is installed on the inner wall of the installation groove 17. A rotating rod 14 is inserted into the inner wall of the piston head 9. The right side of the connecting rod 8 is sleeved on the outer side of the rotating rod 14. Both the front and rear ends of the rotating rod 14 pass through the insertion groove 19. The piston head 9 is inserted into the inner wall of the pump body 1, so as to facilitate pulling the connecting rod 8 and driving the entire piston to slide on the left side of the inner wall of the pump body 1 to adjust the filling volume. The cylinder 2 is installed on the right side of the pump body 1. The nozzle 3 is installed at the lower part of the pump body 1. The valve core 4 is inserted into the inner wall of the nozzle 3 and installed between the top end and the output end of the cylinder 2. The material cylinder 5 is installed on the top of the pump body 1.

[0025] First, pull the connecting rod 8 to the left, causing the piston sleeve 7 and piston head 9 to disengage from the left side of the inner wall of the rotary valve 6. Then, release the restriction between the piston sleeve 7 and piston head 9, and pull the piston head 9 to the right to disengage from the through groove 15. This facilitates the individual replacement of the piston sleeve 7 or piston head 9, reducing replacement costs. After completion, insert and assemble the two together. At the same time, reset the rotary rod 14 and fix the piston sleeve 7 to the connecting rod 8 to complete the assembly. Then, reset the piston sleeve 7 and insert it into the inner wall of the rotary valve 6 for normal use. During adjustment, the piston sleeve 7 can be adjusted left and right along the inner wall of the rotary valve 6 to control the size of the inner cavity of the rotary valve 6, thereby facilitating the adjustment of the filling volume. Meanwhile, the inner wall of the mounting groove 17 is fitted with a sealing ring 13, which improves the sealing between the piston and the inner wall of the rotary valve 6, increasing the effectiveness of the filling and sealing machine.

[0026] Example 2: Based on Example 1, in order to fix the piston sleeve 7 and the piston head 9, insertion grooves 19 are provided on both the front and rear sides of the piston sleeve 7. The inner wall of the insertion groove 19 is provided with a fitting groove 20. A fixing bolt 10 is inserted into the inner wall of the insertion groove 19. A washer 18 is fitted on the outer side of the fixing bolt 10. Threaded grooves 21 are provided at both the front and rear ends of the rotating rod 14. The adjacent parts of the fixing bolts 10 on the front and rear sides are threadedly connected to the threaded grooves 21. The washer 18 is installed on the inner wall of the fitting groove 20, and the side away from the rotating rod 14 is fitted with the fixing bolt 10. Therefore, the stability of the fixing bolt 10 can be increased without the need for an additional washer 18.

[0027] First, unscrew the front and rear fixing bolts 10 respectively, allowing one end to disengage from the threaded groove 21 and pull it out of the insertion groove 19. Then, push out the rotating rod 14 to disengage from the piston sleeve 7. At this time, the restriction between the piston sleeve 7 and the piston head 9 is released, and the piston head 9 can be pulled out to the right to disengage from the through groove 15, thus facilitating the replacement of the piston sleeve 7 or the piston head 9 separately, reducing the replacement cost. After completion, insert and assemble the two together. At the same time, reset the rotating rod 14 and thread the fixing bolts 10 to the threaded groove 21 to fix the position between the piston sleeve 7 and the connecting rod 8. The inner wall of the fitting groove 20 is fitted with a gasket 18, thereby increasing the installation stability of the fixing bolts 10 without the need for an additional gasket 18.

[0028] Example 3: Based on Example 2, in order to buffer the impact on the entire piston during filling, multiple positioning inserts 11 are installed in the middle of the piston head 9. Springs 12 are sleeved on the outer side of the positioning inserts 11, and multiple positioning slots 16 are opened at the right end of the piston sleeve 7. The left part of the positioning insert 11 is inserted into the inner wall of the positioning slot 16, thereby facilitating the positioning and installation of the piston head 9. The left end of the spring 12 is in contact with the piston sleeve 7, and the right end is in contact with the piston head 9. The spring 12 is in a compressed state, thereby dispersing the vibration caused to the entire piston during filling, so as to improve the service life of the piston.

[0029] When the piston sleeve 7 is fitted between the piston head 9, its positioning insert 11 will first be inserted between the positioning slot 16 and squeeze the spring 12 on its outer side to compress it, thereby buffering the impact on the entire piston during filling, improving its service life, and making it convenient to replace the spring 12 later.

[0030] The working process of this utility model is as follows:

[0031] During disassembly, first pull the connecting rod 8 to the left, causing the piston sleeve 7 and piston head 9 to disengage from the left side of the inner wall of the rotary valve 6. Then, unscrew the fixing bolts 10 on both the front and rear sides, allowing one end to disengage from the threaded groove 21 and pull it out of the insertion groove 19. Then, the rotating rod 14 can be pushed out, disengaging from the piston sleeve 7. At this point, the restriction between the piston sleeve 7 and piston head 9 is released, and the piston head 9 can be pulled out of the through groove 15 to the right, thus facilitating the individual replacement of the piston sleeve 7 or piston head 9 to reduce replacement costs. After completion, the two parts are inserted and assembled. At the same time, the rotating rod 14 is reset, and the fixing bolts 10 and threaded rods are reconnected. The grooves 21 are threaded together to fix the position between the piston sleeve 7 and the connecting rod 8. The inner wall of the groove 20 is fitted with a gasket 18, which increases the installation stability of the fixing bolt 10 without the need for an additional gasket 18. The piston sleeve 7 is reset and inserted into the inner wall of the rotary valve 6 for normal use. During adjustment, the piston sleeve 7 is adjusted left and right along the inner wall of the rotary valve 6 to control the size of the inner cavity of the rotary valve 6, thereby facilitating the adjustment of the filling volume. At the same time, the inner wall of the mounting groove 17 is fitted with a sealing ring 13, which improves the sealing between the piston and the inner wall of the rotary valve 6 and increases the performance of the filling and sealing machine.

[0032] When the piston sleeve 7 is fitted between the piston head 9, its positioning insert 11 will first be inserted between the positioning slot 16 and squeeze the spring 12 on its outer side to compress it, thereby buffering the impact on the entire piston during filling, improving its service life, and making it convenient to replace the spring 12 later.

[0033] Finally, the following points should be noted: First, in the description of this application, it should be noted that, unless otherwise specified and limited, the terms "installation", "connection", and "linkage" should be interpreted broadly, and can be mechanical or electrical connections, or internal connections between two components, or direct connections. "Up", "down", "left", "right", etc. are only used to indicate relative positional relationships. When the absolute position of the described object changes, the relative positional relationship may change.

[0034] Secondly: The accompanying drawings of the embodiments disclosed in this utility model only involve the structures involved in the embodiments disclosed in this utility model. Other structures can refer to the general design. In the absence of conflict, the same embodiment and different embodiments of this utility model can be combined with each other.

[0035] Finally: The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A filling volume adjustment mechanism for a tube filling and sealing machine, characterized in that, The device includes a rotary valve (6), which is composed of a pump body (1), a cylinder (2), a nozzle (3), a valve core (4), a material cylinder (5), a piston sleeve (7), and a connecting rod (8). The piston sleeve (7) is inserted into the left side of the inner wall of the pump body (1). A through groove (15) is provided on the inner wall of the piston sleeve (7). A piston head (9) is inserted into the inner wall of the through groove (15). An installation groove (17) is provided on the outer side of the piston head (9). A sealing ring (13) is installed on the inner wall of the installation groove (17). A rotating rod (14) is inserted into the inner wall of the piston head (9). The right side of the connecting rod (8) is sleeved on the outer side of the rotating rod (14).

2. The filling volume adjustment mechanism for a tube filling and sealing machine according to claim 1, characterized in that, The piston sleeve (7) has insertion grooves (19) on both the front and rear sides. The inner wall of the insertion groove (19) has a fitting groove (20). A fixing bolt (10) is inserted into the inner wall of the insertion groove (19). A washer (18) is sleeved on the outer side of the fixing bolt (10). The front and rear ends of the rotating rod (14) have threaded grooves (21).

3. The filling volume adjustment mechanism for a tube filling and sealing machine according to claim 2, characterized in that, The front and rear fixing bolts (10) are threadedly connected to the threaded groove (21) at their respective close proximity. The gasket (18) is installed on the inner wall of the fitting groove (20) and is attached to the fixing bolt (10) on the side away from the rotating rod (14).

4. The filling volume adjustment mechanism for a tube filling and sealing machine according to claim 1, characterized in that, The piston head (9) is equipped with a plurality of positioning inserts (11) in the middle, and springs (12) are sleeved on the outer side of the positioning inserts (11). The piston sleeve (7) is provided with a plurality of positioning slots (16) on the right end.

5. The filling volume adjustment mechanism for a tube filling and sealing machine according to claim 4, characterized in that, The left side of the positioning insert (11) is inserted into the inner wall of the positioning slot (16).

6. The filling volume adjustment mechanism for a tube filling and sealing machine according to claim 4, characterized in that, The left end of the spring (12) is in contact with the piston sleeve (7), and the right end is in contact with the piston head (9), and the spring (12) is in a compressed state.

7. The filling volume adjustment mechanism for a tube filling and sealing machine according to claim 1, characterized in that, The front and rear ends of the rotating rod (14) are both through the insertion slot (19). The piston head (9) is inserted into the inner wall of the pump body (1). The cylinder (2) is installed on the right side of the pump body (1). The nozzle (3) is installed at the lower part of the pump body (1). The valve core (4) is inserted into the inner wall of the nozzle (3) and its top end is installed between the output end of the cylinder (2). The material cylinder (5) is installed on the top of the pump body (1).

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