Ribbon strapping machine with height-adjustable cut-off tool

Abstract

The invention relates to a ribbon strapping machine with a height-adjustable cut-off tool, which comprises a fixed seat, a sliding seat and the cut-off tool supported on the sliding seat, fine adjustment of the height of the cut-off tool is realized through a mechanism which is in threaded connection with and drives a sliding pair, and a threaded connecting piece sinks into the sliding seat. The threaded connecting piece is opened or closed by means of the sliding cutting action of the cut-off tool, so that the fool-proof function is achieved, and the problems that when the cut-off tool is located at the cutting position, the height of the cut-off tool is adjusted abruptly, the cut-off tool and ribbon waste are squeezed, and the mechanism is damaged are solved.

Description

Technical Field

[0001] The present invention relates to automatic bundling equipment, and more particularly to a tie bundling machine with an adjustable height of a cutting knife. Background Art

[0002] The prior art CN220483660U discloses a tie bundling device, which includes a tensioning part and a cutting knife. The tensioning part is configured as a pair of clamping wheels in CN220483660U. After the tie is bundled on a fixed object to be bundled, the tensioning part clamps and stretches the tail of the tie. As the tail of the tie is continuously stretched, the tie is tied tighter and tighter. When the tie is tightened by the tensioning part, the cutting knife cuts the tail of the tie.

[0003] In the prior art, the distance between the cutting knife and the tie cannot be adjusted by displacement, that is, the cutting position of the cutting knife cannot be adjusted. Therefore, in the face of ties of different length specifications, the cutting knife cannot adaptively adjust the length of the tie it cuts. If different cutting knives are selected to adapt to ties of different length specifications, the process of disassembling and assembling the cutting knife is relatively troublesome. Moreover, the method of adapting to different ties by replacing the cutting knife cannot achieve fine adjustment of the cutting height, and the flexibility is poor. Summary of the Invention

[0004] In view of the above problems, the present invention provides a tie bundling machine with an adjustable height of a cutting knife, which can realize manual fine adjustment of the height of the cutting knife and has a reasonable anti-mistake function.

[0005] The present invention is implemented by the following technical solutions:

[0006] The present invention provides a tie bundling machine with an adjustable height of a cutting knife, which includes a fixed seat fixedly arranged, a sliding seat slidably connected to the fixed seat, a cutting knife carried on the sliding seat, and a height fine adjustment mechanism. The height fine adjustment mechanism includes a threaded connector and an elastic member. The threaded connector connects the fixed seat and the sliding seat. The elastic member acts on the sliding seat with its elastic force. The height fine adjustment mechanism is configured to be able to finely adjust the sliding position of the sliding seat relative to the fixed seat by rotating the threaded connector forward or backward and cooperating with the elastic force exerted by the elastic member on the sliding seat. The threaded connector is sunk into the sliding seat. The cutting knife is configured to be able to slide on the sliding seat, and the movement track of the cutting knife is arranged directly above the threaded connector. The cutting knife has a cutting position and a retracted position. When the cutting knife is in the cutting position, the cutting knife blocks and closes the threaded connector, and the threaded connector can be exposed after the cutting knife leaves the cutting position.

[0007] Preferably, an operation hole is provided on the cutting knife, and the operation hole on the cutting knife leaving the cutting position exposes the threaded connector.

[0008] Preferably, the size of the operation hole is equivalent to that of the threaded connection member, and the operation hole coincides with the threaded connection member only when the cutting knife is in the retracted position.

[0009] Preferably, the cable tie bundling machine further includes a tensioning mechanism for tensioning the cable tie. The cutting knife is configured to be able to slide closer to or away from the tensioning mechanism. The height fine-tuning mechanism is provided at the other end of the cutting knife away from the tensioning mechanism. During the process of the cutting knife switching to the cutting position, it gradually moves away from the height fine-tuning mechanism, and during the process of the cutting knife switching to the retracted position, it gradually approaches the height fine-tuning mechanism.

[0010] Preferably, the height fine-tuning mechanism further includes a limiting member. The threaded connection member includes a stud section and a T-shaped limiting portion respectively connected to one end of the stud section. A receiving groove is provided on the fixed seat, and a through threaded hole is provided on the sliding seat. The receiving groove and the threaded hole are coaxially arranged. The stud section of the threaded connection member is threadedly connected in the threaded hole, and the T-shaped limiting portion of the threaded connection member is inserted into the receiving groove. The limiting member is fixedly connected to the upper end of the receiving groove to limit the T-shaped limiting portion from being disengaged upward in the receiving groove.

[0011] Preferably, there are a pair of two limiting members. Each of the opposite sides of the two limiting members is provided with a semi-circular clamping groove. The two limiting members are spliced together so that the two clamping grooves form a circular clamping opening, and the circular clamping opening correspondingly holds the reduced-diameter neck of the T-shaped limiting portion.

[0012] Preferably, a hexagonal groove is provided at the upper end of the stud section.

[0013] Preferably, the cutting knife is linked with the driving device. The sliding of the cutting knife is driven by the driving device. A sleeve column is provided on the output rod of the driving device, and the cutting knife is movably sleeved on the sleeve column.

[0014] Preferably, a guiding channel for guiding the sliding of the cutting knife is provided on the sliding seat.

[0015] Preferably, one of the fixed seat and the sliding seat is provided with a scale, and the other is provided with a pointer. The height of the sliding seat relative to the fixed seat is indicated by the scale and the pointer.

[0016] The present invention has the following beneficial effects: The present invention realizes the fine adjustment of the height of the cutting knife through the mechanism of driving the sliding pair by threaded connection, and the threaded connection member sinks into the sliding seat. The threaded connection member is opened or closed by means of the sliding cutting action of the cutting knife to achieve the anti-mistake function, avoiding the problem that the cutting knife and the cable tie waste are squeezed and the mechanism is damaged when the cutting knife is in the cutting position and the height of the cutting knife is adjusted rashly, making the bundling machine more reliable and stable. Description of the Drawings

[0017] Figure 1 is a schematic diagram of the cable tie in the embodiment;

[0018] Figure 2 is a three-dimensional schematic diagram of a cable tie bundling machine with an adjustable height of the cutting knife in the embodiment (where the cutting knife is in the retracted position);

[0019] Figure 3 is a three-dimensional schematic diagram of a cable tie bundling machine with an adjustable height of the cutting knife in the embodiment (where the cutting knife is in the cutting position);

[0020] Figure 4 is an exploded view of the height fine-tuning mechanism, sliding seat, cutting knife, air cylinder, and sliding guide sleeve in the embodiment;

[0021] Figure 5 is a top view of a cable tie bundling machine with an adjustable height of the cutting knife in the embodiment;

[0022] Figure 6 is Figure 5 a cross-sectional view taken along line A-A in

[0023] Figure 7 is a schematic diagram of a threaded connection member in the embodiment;

[0024] Figure 8 is a schematic diagram of an alternative example of the height fine-tuning mechanism in the embodiment;

[0025] Figure 9 is a schematic diagram of an alternative example of the tensioning mechanism in the embodiment. Detailed implementation manners

[0026] To further illustrate the embodiments, the present invention provides accompanying drawings. These accompanying drawings are part of the disclosure of the present invention, mainly used to illustrate the embodiments, and can be used in conjunction with the relevant descriptions in the specification to explain the operating principles of the embodiments. With reference to these contents, those of ordinary skill in the art should be able to understand other possible implementation manners and the advantages of the present invention. The components in the figures are not drawn to scale, and similar component symbols are usually used to represent similar components.

[0027] In response to the problems in the background art, the inventor conducted intensive research. In the initial version of the solution, the inventor used height adjustment mechanisms such as motors and air cylinders to adjust the height of the cutting knife. However, during further research and development, it was found that when the cutting knife is in the cutting position, the cutting end of the cutting knife is still in the falling space of the cable tie waste. The cutting knife is very likely to be blocked by the cable tie waste. If the position of the cutting knife is adjusted at this time, due to the blockage of the cable tie waste, the adjustment of the cutting knife position may not be achievable. Moreover, if the height adjustment mechanism is continuously driven when the cutting knife is blocked by the cable tie waste, it may also cause damage to the mechanism.

[0028] After further research, the inventor provides a solution in this embodiment that can solve the above problems.

[0029] The present invention will now be further described with reference to the accompanying drawings and specific implementation methods.

[0030] For ease of understanding, Figure 1 The structure of a common cable tie 100 is shown. The cable tie 100 includes a head 101 and a strap body 102. The head 101 is provided with a through hole 103. The through hole 103 allows the tail of the strap body 102 to be passed through and fixed therein in a winding and bending manner. The cable tie 100 is only used as an exemplary illustration of this embodiment. Other types of cable ties can also be used in the cable tie strapping machine of this embodiment.

[0031] See also Figure 2 As a preferred embodiment of the present invention, a cable tie strapping machine with an adjustable cutting blade height is provided. For ease of description, the following description is based on the static position of the cable tie strapping machine in use. The cable tie strapping machine includes a cutting blade 1 and a tensioning mechanism 5. The tensioning mechanism 5 is used to receive and stretch the tail of a cable tie that has been tied to a fixed tied object. For example, the tied object can be a wire harness. The tied object is supported and remains fixed during the strapping process. In this embodiment, the tensioning mechanism 5 is two clamping wheels that rotate in opposite directions. The motor is connected to the tensioning mechanism through transmission. The rotation of the tensioning mechanism 5 is controlled by the motor drive. When the tensioning mechanism 5 rotates, the tail of the cable tie extending between the two clamping wheels can be tightened, thereby realizing automatic tightening of the cable tie. A reduction gear train can be connected between the motor and the tensioning mechanism 5 through transmission. The reduction gear train reduces the rotation speed and increases the torque.

[0032] A tensioning gap for the cable tie is formed between the two clamping wheels of the tensioning mechanism 5, and an introduction port 6 is provided just above the tensioning gap. The cable tie is usually bundled above the tensioning mechanism 5. After the bundling is completed, the tail of the cable tie is introduced into the introduction port 6. The limiting effect of the introduction port 6 ensures that the tail of the cable tie can enter the tensioning gap. The introduction of the tail of the cable tie can be achieved by an automated structure, such as a motor-driven push rod structure or a hook structure. Of course, the tail of the cable tie can also be introduced manually.

[0033] After the tensioning mechanism 5 tightens the cable tie, the tail of the cable tie is cut off by the cutting knife 1, so that no extra tail of the cable tie tied to the tied object will extend. In this embodiment, the cutting knife 1 is arranged above the tensioning mechanism 5 to cut off the extra tail of the cable tie after it is tied. It can be understood that due to the clamping effect of the two clamping wheels, after cutting off, the extra tail may still remain between the two clamping wheels.

[0034] The cutting blade 1 is arranged to be height-adjustable in this embodiment, see Figures 2 - 6As shown in the figure, first, the cable tie bundling machine includes a fixed seat 2 and a sliding seat 3. The fixed seat 2 is fixedly arranged, and the sliding seat 3 is slidably connected to the fixed seat 2 in the up and down direction. The cutting knife 1 is carried on the upper end of the sliding seat 3 in the direction of gravity. Since the cutting knife 1 is carried on the upper end of the sliding seat 3 in the direction of gravity, adjusting the up and down sliding position of the sliding seat 3 is equivalent to adjusting the height of the cutting knife 1. The threaded connecting member 4 connects the fixed seat 2 and the sliding seat 3. With reference to Figure 7 , the threaded connecting member 4 includes a stud section 41, a hexagonal groove 42 and a T-shaped limiting portion 43 respectively connected to both ends of the stud section 41. A receiving groove 21 is provided on the fixed seat 2, and a through threaded hole 31 is provided on the sliding seat 3. The receiving groove 21 and the threaded hole 31 are coaxially arranged. The stud section 41 of the threaded connecting member 4 is threadedly connected in the threaded hole 31, and the T-shaped limiting portion 43 of the threaded connecting member 4 is inserted into the receiving groove 21. A pair of two limiting members 7 are fixedly connected to the upper end of the receiving groove 21. A semicircular clamping groove 70 is provided on each of the opposite sides of the two limiting members 7. The two limiting members 7 are spliced so that the two clamping grooves 70 form a circular clamping opening. Among them, the circular clamping opening correspondingly holds the reduced diameter neck of the T-shaped limiting portion 43. During installation, first insert the T-shaped limiting portion 43 of the threaded connecting member 4 into the receiving groove 21, and then fixedly connect the limiting member 7 to the upper end of the receiving groove 21, so that the T-shaped limiting portion 43 is limited by the limiting member 7 in the receiving groove 21 and cannot be disengaged upward. The elastic member 8 is a compression spring in this embodiment. One end of the elastic member 8 acts on the fixed seat 2, and the other end acts on the sliding seat 3. The threaded connecting member 4, the receiving groove 21, the threaded hole 31, the limiting member 7 and the elastic member 8 form the height fine-tuning mechanism of the sliding seat 3 in this embodiment. The principle is as follows:

[0035] With reference to Figure 6 , when the threaded connecting member 4 is rotated in the direction of screwing out of the threaded hole 31, that is, when the threaded connecting member 4 is screwed upward relative to the threaded hole 31, since the threaded connecting member 4 is limited by the limiting member 7 in the receiving groove 21 and cannot be disengaged upward, correspondingly, the sliding seat 3 slides downward and simultaneously compresses the elastic member 8. When the threaded connecting member 4 is rotated in the direction of screwing into the threaded hole 31, that is, when the threaded connecting member 4 is screwed downward relative to the threaded hole 31, due to the elastic force of the elastic member 8 continuously acting on the sliding seat, the sliding seat 3 slides upward.

[0036] This kind of height fine-tuning mechanism is actually a mechanism of a threaded connection driving a sliding pair. If only the effect of driving the sliding seat 3 to slide relative to the fixed seat 2 by threaded connection is to be achieved, those skilled in the art can think of other solutions, such as Figure 8An alternative example of the height fine-tuning mechanism of the present embodiment is shown, where the threaded connection member 4A is a conventional screw. A clearance hole for the threaded connection member 4A to pass through is provided on the sliding seat 3A, and a threaded hole is provided on the fixed seat 2A. The threaded connection member 4A passes through the sliding seat 3A and is screwed to the fixed seat 2A. Similarly, one end of an elastic member 8 acts on the fixed seat 2A, and the other end acts on the sliding seat 3A, so that the head of the threaded connection member 4A always abuts against the sliding seat 3A. Although the height fine-tuning mechanism of this alternative example has a relatively simple structure, it has a characteristic that the head of the threaded connection member 4A always protrudes from the sliding seat 3A anyway. The biggest difference between the height fine-tuning mechanism of the present embodiment and this is that: the threaded connection member 4 of the present embodiment is completely sunk into the sliding seat 3. This difference is determined by the special structure of the height fine-tuning mechanism of the present embodiment. The beneficial functions of this difference will be further described below.

[0037] Continue to refer to Figures 2 - 4 , the cutting knife 1 is in a sheet structure in this embodiment, and its cutting end is in a sharp shape. The cutting knife 1 is linked with the air cylinder 9. A sleeve 91 is provided on the output rod of the air cylinder 9, and the cutting knife 1 is movably sleeved on the sleeve 91. More specifically, the cutting knife 1 is sleeved on the sleeve 91 in a clearance fit manner. In this way, the output rod of the air cylinder 9 can drive the cutting knife 1 to slide on the upper surface of the sliding seat 3. When the height of the sliding seat 3 is adjusted, the cutting knife 1 can also slide along the sleeve 91. The sliding guide sleeve 11 is fixedly connected to the sliding seat 3, and the sliding guide sleeve 11 and the sliding seat 3 form a channel for slidingly guiding the cutting knife 1. The cutting knife 1 extends through the guiding channel, so as to ensure the accuracy of the sliding of the cutting knife 1. The air cylinder 9 drives the cutting knife 1 to slide on the upper surface of the sliding seat 3 to approach or move away from the tensioning mechanism 5 to perform a cutting action. According to the action of the cutting knife 1, the cutting knife 1 has at least a cutting position for forward feeding and a retracted position for backward retraction. The cutting position is the position where the cutting knife 1 approaches and cuts the tail of the cable tie. Figure 2 and Figure 3The cutting knife 1 is shown in the exit position and the cutting position respectively, which can be understood together. The movement trajectory of the cutting knife 1 is set directly above the threaded connector 4, and the threaded connector is opened or closed by means of the movement of the cutting action of the cutting knife 1. Furthermore, the cutting knife 1 is configured as follows: when the cutting knife 1 is in the cutting position, the cutting knife 1 blocks and closes the threaded connector 4, and the cutting knife 1 can expose the threaded connector 4 after leaving the cutting position. In this way, this embodiment uses the movement of the cutting action of the cutting knife 1 to open or close the operation of the threaded connector 4, and realizes a fool-proof mode, that is, as long as the cutting knife 1 is in the cutting position, the threaded connector 4 is shielded and sealed, and the threaded connector 4 cannot be operated, and the height of the sliding seat 3 and the cutting 1 cannot be adjusted. In this way, when the cutting knife 1 is in the cutting position, the problem of rashly adjusting the height of the cutting knife 1, which causes the cutting knife 1 and the cable tie waste to be squeezed and the mechanism to be damaged, can be avoided.

[0038] In this embodiment, an operating hole 10 is provided on the cutting knife 1. The size of the operating hole 10 is substantially the same as that of the threaded connector 4. Only when the cutting knife 1 is in the withdrawal position, the operating hole 10 overlaps with the threaded connector 4, and the threaded connector 4 is exposed through the operating hole 10. That is to say, in this embodiment, only when the cutting knife 1 is in the withdrawal position can the threaded connector 4 be rotated through the operating hole 10 (for example, a hexagonal wrench is inserted into the operating hole 10 to rotate the threaded connector 4). The operating hole 10 can be further expanded into a strip hole extending along the sliding direction of the cutting knife 1, so that the threaded connector 4 can be opened as soon as the cutting knife 1 leaves the cutting position. However, the operating hole 10 of this embodiment is used in combination with the actuation safety of the cylinder 9.

[0039] In this embodiment, the height fine-adjustment mechanism is arranged at the other end of the cutting knife 1 away from the tensioning mechanism 5, that is, the cutting knife 1 gradually moves away from the height fine-adjustment mechanism when switching to the cutting position, and gradually approaches the height fine-adjustment mechanism when switching to the withdrawal position. The height fine-adjustment mechanism is arranged at the other end of the cutting knife 1 away from the tensioning mechanism 5 in order to avoid interference between the height fine-adjustment mechanism and the tensioning mechanism 5, and to make full use of the sliding travel space of the cutting knife 1.

[0040] Precisely because the threaded connector 4 in this embodiment is completely sunk into the sliding seat 3, the threaded connector 4 can be opened or closed by means of the sliding of the cutting tool 1 on the upper surface of the sliding seat 3. Moreover, with this structure, the cutting tool 1 only needs to have an operation hole 10 to achieve the effect of "shielding the threaded connector 4 when away from it and opening the threaded connector 4 when approaching it". The structures of both the cutting tool 1 and the air cylinder 9 can be set relatively simply. The cutting tool 1 is just a flat sheet-like structure and can be directly connected to the output rod of the air cylinder 9. It has a low cost, is easy to install, occupies little space, is not prone to interference with other components, and the entire strapping machine is more compact and miniaturized, making it more suitable for manual strapping operations. As a counterexample, Figure 8 In the alternative example shown, since the threaded connector 4A protrudes from the upper end of the sliding seat 3A, the threaded connector 4A will first interfere with the sliding of the cutting tool 1 on the upper surface of the sliding seat 3. The cutting tool 1 must be provided with a structure that gives way to the threaded connector 4A. Otherwise, the distance between the threaded connector 4A and the cutting tool 1 has to be set very long, resulting in excessive space occupation. Moreover, in this embodiment, if the cutting tool 1 is to open or close the threaded connector 4A, the structure of the cutting tool 1 and the linkage mechanism between the cutting tool 1 and the air cylinder 9 need to be set more complexly (for example, the cutting tool is set to have a receiving groove that buckles onto the threaded connector 4A. Another example is that by adding other linked motion mechanisms between the cutting tool 1 and the air cylinder 9 to open and close the threaded connector 4A), which requires more space.

[0041] In other embodiments, the tensioning mechanism 5 can be replaced by other mechanisms. For example, the tensioning mechanism 5 can also be replaced by a mechanical gripper structure that can grasp and pull the strapping tape. Another example, Figure 9 Shows an alternative example of the tensioning mechanism 5 in this embodiment. In this alternative example, the tensioning mechanism includes a first clamping block 5A and a second clamping block 5B. The first clamping block 5A is slidably connected to the first slide rail 201, and the second clamping block 5B is slidably connected to the second slide rail 202. The first clamping block 5A and the second clamping block 5B are driven by a driving device (such as a motor or an air cylinder) to move synchronously along their respective slide rails. When the first clamping block 5A and the second clamping block 5B slide on the inclined section of the slide rail, they can approach each other to clamp the tail of the strapping tape. When the first clamping block 5A and the second clamping block 5B slide on the vertical section of the slide rail, they can pull the tail of the strapping tape. However, using the tensioning mechanism 5 with two clamping wheels in this embodiment is more conducive to the guiding and receiving of the strapping tape and also occupies less space.

[0042] The limiting member 7 can be replaced by other structures as long as the limiting member 7 can be fixedly connected to the fixed seat 2 and partially shield the upper end of the receiving groove 21.

[0043] In other embodiments, the elastic member 8 can also be replaced by other elastic members, such as a tension spring or a spring plate, and only the installation position needs to be adaptively improved.

[0044] The cylinder 9 can be replaced by other driving devices, such as a motor or an oil cylinder.

[0045] In this embodiment, the sliding guide sleeve 11 is a separate split part and is fixed to the sliding seat 3 by means of a threaded connection. In other embodiments, the sliding guide sleeve 11 can also be integrally formed on the sliding seat 3. The sliding guide sleeve 11 is a raised structure on the sliding seat 3. In order to prevent the sliding guide sleeve 11 from interfering with the cable tie (especially the head of the cable tie) when the sliding seat 3 is in a higher position, a relief hole 110 is provided on the sliding guide sleeve 11.

[0046] In this embodiment, one of the fixed seat 2 and the sliding seat 3 is provided with a scale, and the other is provided with a pointer. The height of the sliding seat 3 relative to the fixed seat 2 is indicated by the scale and the pointer, which is convenient for adjusting the position of the cutting knife 1 according to the scale value.

[0047] Although the present invention has been specifically shown and described in conjunction with the preferred embodiments, those skilled in the art should understand that various changes made to the present invention in form and detail without departing from the spirit and scope of the present invention defined by the appended claims all fall within the protection scope of the present invention.

Claims

1. A cable tie tying machine with adjustable cutting blade height, characterized in that: The invention comprises a fixed seat, a sliding seat slidably connected to the fixed seat, a cutting knife supported on the sliding seat, and a height fine-tuning mechanism, wherein the height fine-tuning mechanism comprises a threaded connector and an elastic member, wherein the threaded connector connects the fixed seat and the sliding seat, and the elastic member acts on the sliding seat with its elastic force, and the height fine-tuning mechanism is configured to be able to fine-tune the sliding position of the sliding seat relative to the fixed seat by rotating the threaded connector in a forward or reverse direction and cooperating with the elastic force applied by the elastic member to the sliding seat. The threaded connection is sunk into the sliding seat, the cutting knife is configured to be able to slide on the sliding seat, and the movement trajectory of the cutting knife is set directly above the threaded connection. The cutting knife has a cutting position and a withdrawal position. When the cutting knife is in the cutting position, the cutting knife blocks and closes the threaded connection, and the cutting knife can expose the threaded connection after leaving the cutting position.

2. The cable tie tying machine with adjustable cutting blade height according to claim 1, characterized in that: An operating hole is provided on the cutting knife, and the operating hole on the cutting knife away from the cutting position exposes the threaded connection piece.

3. The cable tie tying machine with adjustable cutting blade height according to claim 2, characterized in that: The size of the operating hole is equivalent to that of the threaded connection piece, and the operating hole coincides with the threaded connection piece only when the cutting knife is in the withdrawal position.

4. The cable tie tying machine with adjustable cutting blade height according to claim 1, characterized in that: It also includes a tensioning mechanism for tightening the cable tie, the cutting knife is configured to be able to slide toward or away from the tensioning mechanism, and the height fine-adjustment mechanism is arranged at the other end of the cutting knife away from the tensioning mechanism. The cutting knife gradually moves away from the height fine-adjustment mechanism during the process of switching to the cutting position, and gradually approaches the height fine-adjustment mechanism during the process of switching to the withdrawal position.

5. The cable tie tying machine with adjustable cutting blade height according to claim 1, characterized in that: The height fine-tuning mechanism also includes a limit piece, the threaded connection piece includes a stud section and a T-shaped limit portion respectively connected to one end of the stud section, a receiving groove is provided on the fixed seat, and a through threaded hole is provided on the sliding seat, the receiving groove and the threaded hole are coaxially arranged, the stud section of the threaded connection piece is threadedly connected in the threaded hole, and the T-shaped limit portion of the threaded connection piece is inserted into the receiving groove, and the limit piece is fixedly connected to the upper end of the receiving groove to limit the T-shaped limit portion from falling out upward in the receiving groove.

6. The cable tie tying machine with adjustable cutting blade height according to claim 5, characterized in that: The limiting members are provided in a pair of two, and each of the two limiting members has a semicircular slot on the opposite sides. The two limiting members are spliced ​​so that the two slots form a circular bayonet, and the circular bayonet is correspondingly held on the reduced diameter neck of the T-shaped limiting part.

7. The cable tie tying machine with adjustable cutting blade height according to claim 5, characterized in that: The upper end of the stud section is provided with a hexagonal groove.

8. The cable tie tying machine with adjustable cutting blade height according to claim 1, characterized in that: The cutting knife is linked to the driving device, and the cutting knife is driven to slide by the driving device. A sleeve column is arranged on the output rod of the driving device, and the cutting knife can be movably sleeved on the sleeve column.

9. The cable tie tying machine with adjustable cutting blade height according to claim 1, characterized in that: The sliding seat is provided with a guide channel for slidingly guiding the cutting knife.

10. The cable tie tying machine with adjustable cutting blade height according to claim 1, characterized in that: One of the fixed seat and the sliding seat is provided with a scale, and the other one is provided with a pointer, and the height of the sliding seat relative to the fixed seat is indicated by the scale and the pointer.

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