A cutter locking device for a filter rod forming and combining machine and a filter rod forming and combining machine

Abstract

This invention discloses a cutter locking device for a filter rod forming and laminating machine and the filter rod forming and laminating machine itself, relating to the technical field of tobacco production equipment. The cutter locking device includes a locking rod, a spacer, and an elastic element; the locking rod is movably inserted through a mounting hole; the spacer, elastic element, and eccentric pin are all movably sleeved on the outside of the locking rod, and the spacer, elastic element, and eccentric pin are sequentially arranged away from the ring seat; the spacer includes a first sleeve and a second sleeve coaxially connected, both movably sleeved on the outside of the locking rod, the outer diameter of the first sleeve is larger than the outer diameter of the second sleeve, the end wall of the first sleeve can abut against the end surface of the cutter head structure, and the second sleeve can be inserted into the mounting hole, which improves the ease of assembly and disassembly of the cutter locking device while preventing dust accumulation between the locking device and the mounting hole.

Description

Technical Field

[0001] This invention relates to the field of tobacco production equipment technology, and in particular to a cutter locking device for a filter rod forming and laminating machine and the filter rod forming and laminating machine. Background Technology

[0002] The KDF 5MF filter rod forming and laminating machine is a forming equipment used to produce fine-sized filter rods. The forming process involves slitting, laminating, and rolling the base rods into shape. The MF (Multi-Filter) section is responsible for slitting and laminating the base rods. Figures 1 to 2 As shown, the MF section includes two material magazines, two sets of base bar cutting devices, and multiple sets of drums. The base bar cutting device includes a cutter motor, a cutter head structure 100 (also called a cutter holder), and cutters. The cutter head structure 100 and the cutters are directly connected. Currently, when replacing cutters, cleaning drums, and troubleshooting base bar cutting issues, it is necessary to frequently use a cutter head locking device to switch the cutter head between the working position and the maintenance position. Regarding the cutter head locking device, such as... Figure 3 As shown, it mainly consists of a locking element 1', an eccentric pin 200, a ring seat 400, and two springs. The ring seat 400 and the eccentric pin 200 are respectively located at both ends of the locking element 1'. The ring seat 400 is rotatably sleeved on the outer circumference of the locking element 1', and this end is the operating end. The eccentric pin 200 and the two springs are sequentially movably sleeved on the outer circumference of the rod body of the locking element 1', and the ends of the two springs near the operating end need to be fixed to the rod body of the locking element 1'. At the same time, the mounting holes 101 on the cutter head structure 100 need to be made of two different The hole is composed of a first hole segment and a second hole segment. The first hole segment and the second hole segment have different diameters but are coaxially arranged, thus forming a variable diameter and irregular hole structure. That is, the mounting hole 101 is a stepped hole structure. Then, the two springs can be accommodated in the hole segment with the larger diameter, thereby realizing the positioning of the spring along the axis of the locking member 1', thus preventing the spring from falling out. At this time, the hole segment with the smaller diameter is close to the front of the cutter head structure 100, while the hole segment with the larger diameter is close to the back of the cutter head structure 100. When the equipment is running normally and the cutter head needs to be stabilized in the working position, the operator holds the operating end and screws the locking member 1' inward to compress the spring, so that the eccentric pin 200 can be inserted into the locking support boss 300 for locking. At this time, the locking member 1' continues to move forward, and the spring is compressed by the eccentric pin 200 and the end wall of the smaller diameter hole section, completing the locking of the cutter head structure 100 relative to the locking support boss 300. When it is necessary to replace the cutter, clean the drum, or repair the fault, the operator screws out the locking member 1' to unlock the eccentric pin 200 from the locking support boss 300. At this time, the elastic potential energy accumulated by the originally compressed spring will be released, which will help push the locking member 1' to move backward to complete the unlocking. At this time, operations such as replacing the cutter, cleaning the drum, and repairing the base rod cutting problem can be performed.

[0003] However, as Figures 1 to 3 As shown, the operating end of the locking element 1' is located on the front of the cutter head structure 100. This is to facilitate convenient operation of the entire KDF 5MF filter rod forming composite machine and the locking element 1' from the front. However, this means that when personnel need to remove, repair, or replace the spring, the stepped hole 101 prevents the spring from being removed from the front of the cutter head structure 100. The entire cutter head structure 100 and other related parts must be disassembled to remove the locking element 1', and then the spring can be removed from the back of the cutter head structure 100. Therefore, disassembly and removal can only be performed from the back of the cutter head structure 100. Furthermore, after repair or replacement, the spring still needs to be inserted from the back of the cutter head structure 100. This disassembly and assembly process is complex. The large number of connecting parts, cumbersome processes, long time consumption, and extended downtime for maintenance affect production continuity. Furthermore, since the cutting motor and other structures are located on the back of the cutter head structure 100, the space available for personnel to operate on the back of the cutter head structure 100 is small, making disassembly and assembly difficult. The disassembly and assembly process is cumbersome, difficult to operate, and involves long downtime for maintenance, which seriously affects production continuity. In addition, there is a gap between the locking part 1' and the opening of the mounting hole 101 at the front end (front), which allows dust and debris from the production site to easily enter and accumulate. This can directly cause the locking part 1' to jam during extension, retraction, and rotation, affecting the normal operation of the equipment. Summary of the Invention

[0004] The purpose of this invention is to provide a cutter locking device for a filter rod forming and laminating machine and a filter rod forming and laminating machine, which can improve the ease of disassembly and assembly of the cutter locking device, and at the same time prevent dust accumulation between the locking device and the mounting hole.

[0005] To achieve this objective, the present invention adopts the following technical solution:

[0006] A cutter locking device for a filter rod forming and laminating machine. The filter rod forming and laminating machine includes a cutter, a cutter head structure, an eccentric pin, a locking support boss, and a ring seat. The cutter and the cutter head structure are interconnected. The operating end of the cutter locking device is rotatably sleeved on the ring seat. The cutter locking device is movably inserted through a mounting hole in the cutter head structure and connected to the locking support boss via the eccentric pin to lock the cutter to the locking support boss. The cutter locking device includes a locking rod, a spacer, and an elastic element. The locking rod movably inserts... The spacer, elastic element, and eccentric pin are all movably sleeved on the outside of the locking rod, and the spacer, elastic element, and eccentric pin are sequentially disposed away from the ring seat. The spacer includes a first sleeve and a second sleeve coaxially connected. The first sleeve and the second sleeve are both movably sleeved on the outside of the locking rod. The outer diameter of the first sleeve is larger than the outer diameter of the second sleeve. The end wall of the first sleeve can abut against the end surface of the cutter head structure, and the second sleeve can be inserted into the mounting hole.

[0007] As an optional solution to the cutter locking device for a filter rod forming composite machine provided by the present invention, the first sleeve is detachably connected to the end surface of the cutter head structure.

[0008] As an optional solution for the cutter locking device for a filter rod forming composite machine provided by the present invention, the cutter locking device for the filter rod forming composite machine further includes a fastener. The first sleeve has a through hole, and the surface of the cutter head structure has a fastening hole. The fastener can pass through the through hole and be fixed in the fastening hole.

[0009] As an optional solution for the cutter locking device for a filter rod forming composite machine provided by the present invention, the fastener is a bolt and the fastening hole is a threaded hole.

[0010] As an optional solution for the cutter locking device for a filter rod forming composite machine provided by the present invention, the fastener is provided with at least two fasteners, the number of through holes is consistent with the number of fasteners and corresponds one-to-one, and the number of fastening holes is consistent with the number of through holes and corresponds one-to-one.

[0011] As an optional solution of the cutter locking device for a filter rod forming composite machine provided by the present invention, the first sleeve is provided with a first positioning part, and the surface of the cutter head structure is provided with a second positioning part that cooperates with the first positioning part.

[0012] As an optional embodiment of the cutter locking device for a filter rod forming composite machine provided by the present invention, the first positioning part is a positioning hole, the second positioning part is a positioning protrusion, and the positioning protrusion is placed inside the positioning hole; or, the first positioning part is a positioning protrusion, the second positioning part is a positioning hole, and the positioning protrusion is placed inside the positioning hole.

[0013] As an optional embodiment of the cutter locking device for a filter rod forming composite machine provided by the present invention, the elastic element is a spring and one elastic element is provided.

[0014] As an optional solution for the cutter locking device of the filter rod forming composite machine provided by the present invention, the cutter locking device of the filter rod forming composite machine further includes a bushing. The bushing is movably sleeved on the outside of the locking rod and located between the elastic element and the eccentric pin. The bushing is used to limit the locking rod axially and radially.

[0015] Secondly, the present invention also provides a filter rod forming composite machine, including the above-mentioned cutter locking device for the filter rod forming composite machine, as well as a cutter, a cutter head structure, a ring seat through which the operating end of the cutter locking device passes, an eccentric pin, and a locking support boss.

[0016] The beneficial effects of this invention are:

[0017] A cutter locking device for a filter rod forming and laminating machine includes a cutter, a cutter head structure, an eccentric pin, a locking support boss, and a ring seat. The cutter and the cutter head structure are interconnected. The operating end of the cutter locking device is rotatably fitted onto the ring seat. The cutter locking device is movably inserted through a mounting hole in the cutter head structure and connected to the locking support boss via the eccentric pin to lock the cutter to the locking support boss. The cutter locking device includes a locking rod, a spacer, and an elastic element. The locking rod movably inserts through the mounting hole. The spacer, elastic element, and eccentric pin are all movably fitted onto the outside of the locking rod, and are sequentially positioned away from the ring seat. The spacer includes a first sleeve and a second sleeve coaxially connected, both movably fitted onto the outside of the locking rod. The outer diameter of the first sleeve is larger than the outer diameter of the second sleeve, and the end wall of the first sleeve can abut against the cutter head structure. On the end surface, the second sleeve can be inserted into the mounting hole. This allows for operations such as changing the cutter, cleaning the drum, and inspecting the base rod cutting. Simultaneously, the assembly and disassembly of the cutter locking device can be performed from the front of the cutter head structure, allowing the insertion and removal of the locking rod, spacer, elastic element, and eccentric pin. This means the locking rod, spacer, elastic element, and eccentric pin can be inserted and removed from the mounting hole located on the front of the cutter head structure. Therefore, the assembly and disassembly of the cutter locking device can be completed without disassembling the cutter head structure and other related parts. Furthermore, the front of the cutter head structure provides more operational space, making assembly and disassembly simpler and more efficient. Additionally, the first sleeve seals the gap between the mounting hole and the locking rod, preventing dust and debris from entering and accumulating, thus avoiding jamming during the extension and rotation of the locking rod. Attached Figure Description

[0018] Figure 1 This is a first-person view structural diagram of a filter rod forming composite machine in the existing technology;

[0019] Figure 2 This is a structural schematic diagram of a filter rod forming composite machine in the prior art from a second perspective.

[0020] Figure 3 This is a schematic diagram of the installation of the cutter locking device in a filter rod forming composite machine in the prior art;

[0021] Figure 4 This is an installation diagram of the cutter locking device for a filter rod forming composite machine provided in a specific embodiment of the present invention;

[0022] Figure 5 This is a schematic diagram of the cutter head structure corresponding to the cutter locking device for the filter rod forming composite machine provided in a specific embodiment of the present invention;

[0023] Figure 6This is a cross-sectional view of the spacer for a filter rod forming composite machine provided in a specific embodiment of the present invention;

[0024] Figure 7 This is a schematic diagram of the structure of the first sleeve for a filter rod forming composite machine provided in a specific embodiment of the present invention;

[0025] Figure 8 This is a cross-sectional view of the bushing for a filter rod forming composite machine provided in a specific embodiment of the present invention.

[0026] In the picture:

[0027] 1' Locking components;

[0028] 100. Cutter head structure; 200. Eccentric pin; 300. Locking support boss; 400. Ring seat;

[0029] 101. Mounting hole; 102. Fastening hole; 103. Second positioning part;

[0030] 1. Locking rod; 2. Spacer; 3. Elastic element; 4. Bushing;

[0031] 21. First sleeve; 22. Second sleeve;

[0032] 211. Through hole; 212. First positioning part. Detailed Implementation

[0033] Embodiments of the present invention are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar components or components having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain the present invention, and should not be construed as limiting the present invention.

[0034] In the description of this invention, unless otherwise explicitly specified and limited, the terms "connected," "linked," and "fixed" should be interpreted broadly. For example, they can refer to a fixed connection or a detachable connection; a mechanical connection or an electrical connection; a direct connection or an indirect connection through an intermediate medium; or the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0035] In the description of this invention, unless otherwise expressly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature being directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature being directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0036] The technical solution of the present invention will be further described below with reference to the accompanying drawings and specific embodiments.

[0037] The KDF 5MF filter rod forming and laminating machine is a forming equipment used to produce fine-sized filter rods. The forming process involves slitting, laminating, and rolling the base rods into shape. The MF (Multi-Filter) section is responsible for slitting and laminating the base rods. Figures 1 to 2 As shown, the MF section includes two material bins, two sets of base bar cutting devices, and multiple sets of drums. The base bar cutting device includes a cutter motor, a cutter head structure 100, and cutters. The cutter head structure 100 and the cutters are directly connected. Currently, when replacing cutters, cleaning drums, and troubleshooting base bar cutting issues, it is necessary to frequently use a cutter head locking device to switch the cutter head between the working and maintenance positions. Regarding the cutter head locking device, such as... Figure 3As shown, it mainly consists of a locking element 1', an eccentric pin 200, a ring seat 400, and two springs. The ring seat 400 and the eccentric pin 200 are respectively located at both ends of the locking element 1'. The ring seat 400 is rotatably sleeved on the outer circumference of the locking element 1', and this end is the operating end. The eccentric pin 200 and the two springs are sequentially and movably sleeved on the outer circumference of the rod body of the locking element 1'. The ends of the two springs near the operating end need to be fixed to the rod body of the locking element 1'. At the same time, the mounting hole 101 on the cutter head structure 100 needs to be composed of two holes of different diameters connected together. The mounting hole 101 includes a first hole section and a second hole section. The first hole section and the second hole section have different diameters but are coaxially arranged, thus forming a variable diameter and irregular hole structure. In other words, the mounting hole 101 is a stepped hole structure, so that the two springs can be accommodated in the hole section with the larger diameter and abut against the end wall of the hole section with the smaller diameter. This enables the springs to be positioned along the axis of the locking member 1', thereby preventing the springs from coming out. At this time, the hole section with the smaller diameter is close to the front of the cutter head structure 100, while the hole section with the larger diameter is close to the back of the cutter head structure 100. When the equipment is running normally and the cutter head needs to be stabilized in the working position, the operator holds the operating end and screws the locking member 1' inward to compress the spring, allowing the eccentric pin 200 to insert into the locking support boss 300 for locking. At this time, the locking member 1' continues to move forward, and the spring is compressed by the eccentric pin 200 and the end wall of the smaller diameter hole section. This completes the locking of the cutter head structure 100 relative to the locking support boss 300. When it is necessary to replace the cutter, clean the drum, or troubleshoot, the operator unscrews the locking member 1', causing the eccentric pin 200 to exit from the locking support boss 300. At this time, the elastic potential energy accumulated by the previously compressed spring is released, assisting in pushing the locking member 1' to move backward to complete the unlocking. At this time, operations such as replacing the cutter, cleaning the drum, and troubleshooting base rod cutting problems can be performed. However, if Figures 1 to 3As shown, in the prior art, the operating end of the locking element 1' is located on the front of the cutter head structure 100. This is to facilitate convenient operation of the entire KDF 5MF filter rod forming composite machine and the locking element 1' from the front. However, this leads to a situation where, for example, when it is necessary to remove, repair, or replace the spring, the spring cannot be removed from the front of the cutter head structure 100 because the mounting hole 101 has a stepped hole structure. The entire cutter head structure 100 and other related parts must be disassembled to remove the locking element 1', and then the spring can be removed from the back of the cutter head structure 100. Therefore, disassembly and removal can only be performed from the back of the cutter head structure 100. Furthermore, after the repair or replacement is completed, the spring still needs to be inserted from the back of the cutter head structure 100. Its disassembly and assembly process is complex. The large number of connecting parts, cumbersome processes, long time consumption, and extended downtime for maintenance affect production continuity. Furthermore, since the cutting motor and other structures are located on the back of the cutter head structure 100, the space available for personnel to operate on the back of the cutter head structure 100 is small, making disassembly and assembly difficult. The disassembly and assembly process is cumbersome, difficult to operate, and involves long downtime for maintenance, which seriously affects production continuity. In addition, there is a gap between the locking part 1' and the opening of the mounting hole 101 at the front end (front), which allows dust and debris from the production site to easily enter and accumulate. This can directly cause the locking part 1' to jam during extension, retraction, and rotation, affecting the normal operation of the equipment.

[0038] Therefore, in order to improve the ease of disassembly and assembly of the cutter locking device, and to prevent dust accumulation between the locking device and the mounting hole 101, such as Figure 4 To the end Figure 8 As shown, this invention provides a cutter locking device (hereinafter referred to as the cutter locking device) for a filter rod forming and laminating machine. The filter rod forming and laminating machine includes a cutter, a cutter head structure 100, an eccentric pin 200, a locking support boss 300, and a ring seat 400. The cutter and the cutter head structure 100 are interconnected. The operating end of the cutter locking device is rotatably fitted with the ring seat 400. The cutter locking device is movably inserted through the mounting hole 101 of the cutter head structure 100 and connected to the locking support boss 300 via the eccentric pin 200 to lock the cutter to the locking support boss 300. The cutter locking device includes a locking rod 1. Spacer 2 and elastic element 3; locking rod 1 is movably inserted through mounting hole 101; spacer 2, elastic element 3 and eccentric pin 200 are all movably sleeved on the outside of locking rod 1, and spacer 2, elastic element 3 and eccentric pin 200 are arranged sequentially away from ring seat 400; spacer 2 includes a first sleeve 21 and a second sleeve 22 coaxially connected, the first sleeve 21 and the second sleeve 22 are both movably sleeved on the outside of locking rod 1, the outer diameter of the first sleeve 21 is larger than the outer diameter of the second sleeve 22, the end wall of the first sleeve 21 can abut against the end surface of the cutter head structure 100, and the second sleeve 22 can be inserted into mounting hole 101.

[0039] It is understood that the filter rod forming and laminating machine includes a cutter, a cutter head structure 100, an eccentric pin 200, a locking support boss 300, and a ring seat 400. The operating end of the cutter locking device (hereinafter referred to as the cutter locking device) for the filter rod forming and laminating machine of the present invention is rotatably sleeved with the ring seat 400. The cutter locking device passes through the mounting hole 101 of the cutter head structure 100 and is connected to the locking support boss 300 through the eccentric pin 200, thereby locking the cutter head structure 100 to the locking support boss 300. 0. Because the cutter head structure 100 is connected to the cutter, the cutter can be locked to the locking support boss 300. For the cutter locking device of the filter rod forming composite machine, it specifically includes a locking rod 1, a spacer 2 and an elastic element 3. At the same time, in the direction away from the ring seat 400, the spacer 2, the elastic element 3 and the eccentric pin 200 are sequentially movably sleeved on the outside of the locking rod 1. That is, from the operating end of the locking rod 1 to the eccentric pin 200, the spacer 2 and the elastic element 3 are sequentially sleeved on the outside of the locking rod 1.The spacer 2 includes a first sleeve 21 and a second sleeve 22. Both the first sleeve 21 and the second sleeve 22 are movably sleeved on the outside of the locking rod 1, and the first sleeve 21 and the second sleeve 22 are coaxially connected. The outer diameter of the first sleeve 21 is larger than the outer diameter of the second sleeve 22. The end wall of the first sleeve 21 can abut against the surface of the cutter head structure 100, and the second sleeve 22 can be inserted into the mounting hole 101. When the filter rod forming composite machine is running normally and the cutter head needs to be stabilized in the working position, the operator holds the operating end and screws the locking rod 1 inward to compress the elastic element 3, so that the eccentric pin 200 can be inserted into the lock for locking. When the locking support boss 300 is tightened, the end wall of the first sleeve 21 can abut against the surface of the cutter head structure 100. Then, the locking rod 1 continues forward, and the elastic element 3 is compressed by the eccentric pin 200 and the second sleeve 22. At this point, the cutter head structure 100 is locked relative to the locking support boss 300. When it is necessary to replace the cutter, clean the drum, or repair a fault, the operator rotates the locking rod 1 to unlock the eccentric pin 200 from the locking support boss 300. At this time, the elastic potential energy accumulated in the previously compressed elastic element 3 is released, thereby pressing against the second sleeve 22 and causing the first sleeve 21 to retract. The ring seat 400 is rotatably sleeved around the outer periphery of the locking rod 1 and located at the operating end of the locking rod 1. When it is withdrawn, the first sleeve 21 will drive the ring seat 400 and the locking rod 1 to withdraw together, thereby assisting in pushing the locking rod 1 to move backward to complete the unlocking of the cutter locking device. At this time, operations such as replacing the cutter, cleaning the drum, and inspecting the base rod cutting problem can be performed. At the same time, the assembly and disassembly of the above-mentioned cutter locking device can be performed from the front of the cutter head structure 100, allowing the insertion and removal of the locking rod 1, spacer 2, elastic element 3, and eccentric pin 200. That is, it can be removed from the front of the cutter head structure 100 through the mounting hole 101. The locking rod 1, spacer 2, elastic element 3, and eccentric pin 200 are inserted and removed through the opening on the front, thus eliminating the need to disassemble the cutter head structure 100 and other related parts to complete the assembly and disassembly of the cutter locking device. Furthermore, the front of the cutter head structure 100 provides more operational space, making assembly and disassembly simpler and more efficient. Additionally, the first sleeve 21 seals the gap between the mounting hole 101 and the locking rod 1, preventing dust and debris from entering and accumulating, thereby preventing jamming during the extension, retraction, and rotation of the locking rod 1.

[0040] It should be noted that the cutter and the cutter head structure 100 are directly connected. The cutter locking device locks the cutter head structure 100 to complete the locking of the cutter. At the same time, the operating end of the cutter locking device is rotatably fitted with a ring seat 400, that is, the operating end of the locking rod 1 is rotatably fitted with a ring seat 400. The ring seat 400 can only rotate. Thus, when the locking rod 1 is inserted into the mounting hole 101, it can be locked by rotating through the ring seat 400 and cooperating with other locking structures. These are all existing technologies and will not be described in detail here. Furthermore, the eccentric pin 200 is fitted on the end of the locking rod 1 away from the operating end. At the same time, the eccentric pin 200 can move slightly along the central axis of the locking rod 1. This is to achieve stable insertion into the locking support boss 300. The locking support boss 300 is used to fix the cutter head structure 100 and the cutter. The specific eccentric cooperation method between the locking support boss 300 and the eccentric pin 200 is also existing technology and will not be described in detail here.Furthermore, regarding the cutter locking device of the present invention, due to the arrangement of the first sleeve 21 and the second sleeve 22, it is not necessary to set the mounting hole 101 into a variable-diameter irregular hole structure composed of a first hole segment and a second hole segment with different diameters, as is the case in the prior art. That is, the cutter locking device of the present invention does not require a stepped hole structure; the mounting hole 101 can be directly set as a constant-diameter hole structure. It can also be understood that the second sleeve 22 is equivalent to the smaller-diameter hole segment in the prior art. Unlike the prior art, the second sleeve 22 of the present invention can... The second sleeve 22 and the eccentric pin 200 can be directly removed from the front of the cutter head structure 100, thereby compressing the elastic element 3. When the cutter locking device needs to be locked, the second sleeve 22 is directly inserted into the mounting hole 101 along with the locking rod 1 from the front of the cutter head structure 100 and compresses the elastic element 3. When the locking rod 1, spacer 2, elastic element 3, and eccentric pin 200 of the cutter locking device need to be removed for maintenance or replacement, the locking rod 1 is directly pulled out from the front of the cutter head structure 100, which can directly drive the first sleeve. 21. The second sleeve 22, the elastic element 3, and the eccentric pin 200 disengage from the mounting hole 101 without requiring operation on the back of the cutter head structure 100, and without disassembling the entire cutter head structure 100; furthermore, the outer diameter of the first sleeve 21 is larger than the outer diameter of the second sleeve 22, allowing the first sleeve 21 to seal the gap between the locking rod 1 and the opening of the mounting hole 101, thereby preventing dust and debris from entering the gap and preventing the accumulation of dust and debris, thus avoiding jamming when the locking rod 1 extends, retracts, or rotates. It should be noted that the first sleeve... The first sleeve 21 and the second sleeve 22 can be connected by a detachable connection, an integrated connection, or other methods. Preferably, the first sleeve 21 and the second sleeve 22 are integrated, and the specific integrated connection method can be welding, etc. In addition, the outer diameter of the second sleeve 22 should be smaller than the diameter of the mounting hole 101 to ensure that the second sleeve 22 can be properly inserted into the mounting hole 101. The inner diameter of the first sleeve 21 and the inner diameter of the second sleeve 22 should be the same, so as to ensure that the first sleeve 21 and the second sleeve 22 can be movably sleeved on the locking rod 1. In addition, when the elastic element 3 releases its elastic potential energy, one end of the elastic element 3 has already abutted against the eccentric pin 200, and the eccentric pin 200 cannot continue to be inserted forward. At this time, the other end of the elastic element 3 can directly push the second sleeve 22 and drive the first sleeve 21 and the locking rod 1 to retract. This makes it easier to remove the elastic element 3. In other words, the elastic element 3 of this invention only needs to be sleeved on the outside of the locking rod 1 without unilateral fixation, which further improves the ease of disassembly and assembly of the elastic element 3. In addition, the shapes of the first sleeve 21 and the second sleeve 22 can be as follows. Figure 4 , Figures 6 to 7The shape shown can also be other shapes, and the specific dimensions and materials of the locking rod 1, the first sleeve 21 and the second sleeve 22 are all adapted by those skilled in the art according to actual usage needs, and will not be detailed here.

[0041] Furthermore, as an option, such as Figures 4 to 8 As shown, the first sleeve 21 is detachably connected to the end surface of the cutter head structure 100.

[0042] It is understood that in this embodiment, the first sleeve 21 is detachably connected to the end surface of the cutter head structure 100. Thus, when the filter rod forming composite machine is running normally and the cutter head needs to be stabilized in the working position, the first sleeve 21 can be connected and fixed to the surface of the cutter head structure 100. When it is necessary to replace the cutter, clean the drum, repair the fault, or remove the cutter locking device, the first sleeve 21 can be removed from the surface of the cutter head structure 100, which avoids the elastic element 3 from coming off, thereby improving the effectiveness of the cutter locking device.

[0043] It should be noted that the detachable connection between the first sleeve 21 and the cutter head structure 100 refers to the detachable connection between the first sleeve 21 and the surface of the cutter head structure 100 near the front opening of the mounting hole 101. Specific detachable connection methods could include snap-fit ​​connections, threaded connections, pin connections, etc. Alternatively, other methods could be used... Figures 4 to 8 As shown, the cutter locking device of the filter rod forming composite machine also includes fasteners (not shown in the figure). The first sleeve 21 has a through hole 211, and the surface of the cutter head structure 100 has a fastening hole 102. The fastener can pass through the through hole 211 and be fixed in the fastening hole 102.

[0044] It is understandable that the cutter locking device of the filter rod forming composite machine also includes fasteners. The first sleeve 21 has a through hole 211, and the surface of the cutter head structure 100 has a fastening hole 102. The fastener passes through the through hole 211 and is installed in the fastening hole 102, thereby improving the effectiveness of the cutter locking device. The specific type of fastener can be a pin, bolt, etc., and the corresponding fastening hole 102 can be a pin hole, threaded hole, etc. Therefore, optionally, such as... Figures 4 to 8 As shown, the fastener is a bolt, and the fastening hole 102 is a threaded hole, thereby improving the ease of use of the cutter locking device through threaded connection. Furthermore, the fastening hole 102 can be as follows: Figure 5 The threaded hole shown is a through-hole, but it may not be a through-hole. It is an adaptive choice that can be made by those skilled in the art according to actual usage requirements, and will not be described in detail here.

[0045] Furthermore, as an option, such as Figures 4 to 8As shown, there are at least two fasteners. The number of through holes 211 is the same as the number of fasteners and they correspond one-to-one. The number of fastening holes 102 is the same as the number of through holes 211 and they correspond one-to-one.

[0046] It is understandable that there are at least two fasteners, the number of through holes 211 corresponds to the number of fasteners, and the number of fastening holes 102 corresponds to the number of through holes 211. This, along with at least two fasteners, further prevents the elastic element 3 from dislodging, thereby improving the locking effect of the cutter locking device. It should be noted that the specific number of fasteners, through holes 211, and fastening holes 102 can be as follows: Figure 5 as well as Figure 7 The two shown can also be other numbers, all of which are adaptively selected and adjusted by those skilled in the art according to actual usage needs, and are not limited in detail here.

[0047] Furthermore, as an option, such as Figures 5 to 7 As shown, a first positioning part 212 is provided on the first sleeve 21, and a second positioning part 103 that cooperates with the first positioning part 212 is provided on the surface of the cutter head structure 100.

[0048] It is understood that the first sleeve 21 is provided with a first positioning part 212, and the surface of the cutter head structure 100 is provided with a second positioning part 103 that cooperates with the first positioning part 212. Thus, the cooperation of the first positioning part 212 and the second positioning part 103 improves the docking accuracy between the first sleeve 21 and the surface of the cutter head structure 100. As for the specific type of the first positioning part 212 and the second positioning part 103, they can be a combination of guide protrusions and guide grooves or other types. Optionally, in this embodiment, such as... Figures 5 to 7 As shown, the first positioning part 212 is a positioning hole, and the second positioning part 103 is a positioning protrusion, with the positioning protrusion placed inside the positioning hole; or, the first positioning part 212 is a positioning protrusion, and the second positioning part 103 is a positioning hole, with the positioning protrusion placed inside the positioning hole.

[0049] It is understandable that the first positioning part 212 is a positioning hole, and the second positioning part 103 is a positioning protrusion. The extending directions of both the positioning hole and the positioning protrusion are parallel to the central axis of the locking rod 1. Alternatively, the first positioning part 212 is a positioning protrusion, and the second positioning part 103 is a positioning hole. The extending directions of both the positioning protrusion and the positioning hole are parallel to the central axis of the locking rod 1. This facilitates the docking of the first sleeve 21 with the surface of the cutter head structure 100. However, it should be noted that... Figure 5 as well as Figure 7The first positioning part 212 is given as a positioning hole and the second positioning part 103 is given as a positioning protrusion, but it is not limited to this embodiment. The positioning hole can be through or non-through, which is not limited here. In addition, the connection between the positioning protrusion and the surface of the first sleeve 21 or the cutter head structure 100 can be an integrated connection or a detachable connection, etc. The specific material of the positioning protrusion is prior art and is not limited here.

[0050] Furthermore, as an option, such as Figure 4 As shown, the elastic element 3 is a spring, and there is only one elastic element 3. This allows the elastic element 3 to be stably fitted onto the outside of the locking rod 1, while reducing the structural cost of the elastic element 3. Of course, the elastic element 3 can also be other elastic structures, which will not be elaborated here. It should also be noted that, since the elastic element 3 needs to be fitted onto the outside of the locking rod 1, the diameter of the mounting hole 101 should be larger than the diameter of the elastic element 3, thereby ensuring the normal insertion of the locking rod 1 and the elastic element 3, as well as the normal elastic deformation of the elastic element 3. Most importantly, this embodiment uses only one spring, which, compared to the two springs in the prior art, further ensures a uniform and synchronized elastic clamping force.

[0051] Furthermore, as an option, such as Figure 4 as well as Figure 8 As shown, the cutter locking device of the filter rod forming composite machine also includes a bushing 4. The bushing 4 is movably sleeved on the outside of the locking rod 1 and located between the elastic element 3 and the eccentric pin 200. The bushing 4 is used to limit the locking rod 1 axially and radially.

[0052] Understandably, the cutter locking device of the filter rod forming composite machine also includes a bushing 4. The bushing 4 is movably sleeved on the outside of the locking rod 1 and located between the elastic element 3 and the eccentric pin 200. Thus, when the locking rod 1 is inserted into the mounting hole 101, the bushing 4 can axially limit and radially straighten the locking rod 1, ensuring the effectiveness of the cutter locking device. As for the specific shape of the bushing 4, it can be as follows: Figure 4 as well as Figure 8The structure includes an annular protrusion and an arc-shaped transition to ensure smooth sliding of the bushing 4 within the mounting hole 101. The outer diameter of the bushing 4 should be smaller than the diameter of the mounting hole 101, but not smaller than the outer diameter of the elastic element 3, allowing it to abut against one end of the elastic element 3. When the filter rod forming composite machine is running normally and the cutter head needs to be stabilized in the working position, the operator holds the operating end and screws the locking rod 1 inward, compressing the elastic element 3. This allows the eccentric pin 200 to insert into the locking support boss 300 for locking. At this time, the end wall of the first sleeve 21 abuts against the surface of the cutter head structure 100. Subsequently, the bushing 4 is pressed against by the eccentric pin 200. The locking rod 1 continues forward, and the elastic element 3 is pressed against the bushing 4 and the second sleeve 200. 2. Compression completes the locking of the cutter head structure 100 relative to the locking support boss 300. When it is necessary to replace the cutter, clean the drum, or troubleshoot, the operator rotates the locking rod 1 to unlock the eccentric pin 200 from the locking support boss 300. At this time, the elastic potential energy stored in the previously compressed elastic element 3 is released, thereby pressing against the second sleeve 22 and driving the first sleeve 21 to exit. Since the ring seat 400 is rotated and sleeved on the outer circumference of the locking rod 1 and located at the operating end of the locking rod 1, the first sleeve 21 will drive the ring seat 400 and the locking rod 1 to exit together when exiting. This can assist in pushing the locking rod 1 to move backward to complete the unlocking of the cutter locking device. At this time, operations such as replacing the cutter, cleaning the drum, and troubleshooting the base rod cutting problem can be performed. In addition, the specific material of the bushing 4 is adapted by those skilled in the art according to actual use needs and is not limited in detail here.

[0053] In addition, the present invention also provides a filter rod forming composite machine, including the above-mentioned cutter locking device for the filter rod forming composite machine, as well as a cutter, a cutter head structure 100, a ring seat 400 through which the operating end of the cutter locking device passes, an eccentric pin 200, and a locking support boss 300.

[0054] It is understood that a filter rod forming and laminating machine includes the aforementioned cutter locking device for the filter rod forming and laminating machine, as well as a cutter, a cutter head structure 100, an annular seat 400 through which the operating end of the cutter locking device passes, an eccentric pin 200, and a locking support boss 300. The filter rod forming and laminating machine includes a cutter, a cutter head structure 100, an eccentric pin 200, a locking support boss 300, and an annular seat 400. The cutter and the cutter head structure 100 are interconnected. The operating end of the cutter locking device is rotatably fitted onto the annular seat 400. The cutter locking device is movably inserted through the mounting hole 101 of the cutter head structure 100 and connected to the locking support boss 300 via the eccentric pin 200 to lock the cutter. The locking support boss 300 is locked, and the cutting tool locking device includes a locking rod 1, a spacer 2, and an elastic element 3. The locking rod 1 is movably inserted through the mounting hole 101. The spacer 2, the elastic element 3, and the eccentric pin 200 are all movably sleeved on the outside of the locking rod 1, and the spacer 2, the elastic element 3, and the eccentric pin 200 are arranged sequentially away from the ring seat 400. The spacer 2 includes a first sleeve 21 and a second sleeve 22 coaxially connected. The first sleeve 21 and the second sleeve 22 are both movably sleeved on the outside of the locking rod 1. The outer diameter of the first sleeve 21 is larger than the outer diameter of the second sleeve 22. The end wall of the first sleeve 21 can abut against the end surface of the cutting head structure 100, and the second sleeve 22 can be inserted into the mounting hole 101.

[0055] It should be emphasized that, due to the arrangement of the first sleeve 21 and the second sleeve 22 in the cutting locking device for the filter rod forming composite machine of the present invention, it is not necessary to set the mounting hole 101 as a variable-diameter irregular hole structure composed of a first hole segment and a second hole segment with different diameters, as is the case in the prior art. That is, the cutting locking device of the present invention does not require a stepped hole structure, and the mounting hole 101 can be directly set as a constant-diameter hole structure. Therefore, the present invention can reasonably improve other filter rod forming composite machines in the prior art. Specifically, the variable-diameter irregular hole structure in the prior art can be directly ground from the front to form a straight through round hole with equal diameter at both ends (i.e., a constant-diameter hole structure), which can eliminate the original stepped hole structure. And a corresponding fastening hole 102 can be opened on the surface of the cutting head structure 100 near the hole opening on the front side of the ground mounting hole 101. For example, Figure 5 For example, when the fastening hole 102 is a threaded hole and there are two fastening holes 102, that is, two threaded holes are opened on the surface of the cutter head structure 100 near the front opening of the mounting hole 101. After the debugging is completed smoothly, the modification is considered complete. The modification is more convenient and the improvement cost is lower. It can be promoted and used in similar filter rod forming composite machines in the industry.

[0056] Obviously, the above embodiments of the present invention are merely examples for clearly illustrating the present invention, and are not intended to limit the implementation of the present invention. Those skilled in the art can make other variations or modifications based on the above description. It is neither necessary nor possible to exhaustively describe all embodiments here. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present invention should be included within the scope of protection of the claims of the present invention.

Claims

1. A cutter locking device for a filter rod forming and laminating machine, the filter rod forming and laminating machine comprising a cutter, a cutter head structure (100), an eccentric pin (200), a locking support boss (300), and a ring seat (400), wherein, The cutter and the cutter head structure (100) are interconnected. The operating end of the cutter locking device is rotatably sleeved on the ring seat (400). The cutter locking device is movably inserted through the mounting hole (101) of the cutter head structure (100) and connected to the locking support boss (300) through the eccentric pin (200) to lock the cutter to the locking support boss (300). The cutter locking device includes a locking rod (1), a spacer (2), and an elastic element (3). The locking rod (1) is movably inserted through the mounting hole (101). The spacer (2), the elastic element (3), and the eccentric pin (200) are all movably sleeved on the outside of the locking rod (1), and the spacer (2), the elastic element (3), and the eccentric pin (200) are arranged sequentially away from the ring seat (400); The spacer (2) includes a first sleeve (21) and a second sleeve (22) coaxially connected. The first sleeve (21) and the second sleeve (22) are both movably sleeved on the outside of the locking rod (1). The outer diameter of the first sleeve (21) is larger than the outer diameter of the second sleeve (22). The end wall of the first sleeve (21) can abut against the end surface of the cutter head structure (100). The second sleeve (22) can be inserted into the mounting hole (101).

2. The cutter locking device for a filter rod forming and laminating machine according to claim 1, characterized in that, The first sleeve (21) is detachably connected to the end surface of the cutter head structure (100).

3. The cutter locking device for a filter rod forming and laminating machine according to claim 2, characterized in that, The cutter locking device of the filter rod forming composite machine also includes fasteners. The first sleeve (21) has a through hole (211), and the surface of the cutter head structure (100) has a fastening hole (102). The fasteners can pass through the through hole (211) and be fixed in the fastening hole (102).

4. The cutter locking device for a filter rod forming and laminating machine according to claim 3, characterized in that, The fastener is a bolt, and the fastening hole (102) is a threaded hole.

5. The cutter locking device for a filter rod forming and laminating machine according to claim 3, characterized in that, The fasteners are provided in at least two forms, the number of through holes (211) is consistent with the number of fasteners and corresponds one-to-one, and the number of fastening holes (102) is consistent with the number of through holes (211) and corresponds one-to-one.

6. The cutter locking device for a filter rod forming composite machine according to claim 1, characterized in that, The first sleeve (21) is provided with a first positioning part (212), and the surface of the cutter head structure (100) is provided with a second positioning part (103) that cooperates with the first positioning part (212).

7. The cutter locking device for a filter rod forming and laminating machine according to claim 6, characterized in that, The first positioning part (212) is a positioning hole, and the second positioning part (103) is a positioning protrusion, which is placed inside the positioning hole; Alternatively, the first positioning part (212) is a positioning protrusion, and the second positioning part (103) is a positioning hole, with the positioning protrusion placed inside the positioning hole.

8. The cutter locking device for a filter rod forming composite machine according to claim 1, characterized in that, The elastic element (3) is a spring and there is one elastic element (3).

9. The cutter locking device for a filter rod forming and laminating machine according to any one of claims 1-8, characterized in that, The cutter locking device of the filter rod forming composite machine also includes a bushing (4), which is movably sleeved on the outside of the locking rod (1) and located between the elastic element (3) and the eccentric pin (200). The bushing (4) is used to limit the locking rod (1) axially and radially.

10. A filter rod forming and composite machine, characterized in that, Includes a cutter locking device for a filter rod forming composite machine as described in any one of claims 1-9, as well as a cutter, a cutter head structure (100), a ring seat (400) through which the operating end of the cutter locking device passes, an eccentric pin (200), and a locking support boss (300).

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