Automatic die changing device for optical cable printing character block

Abstract

The invention relates to the technical field of optical cable lettering, and discloses an optical cable lettering character block automatic die changing device which comprises a lettering rotary table, a rack, a lettering module and a character displaying belt. The printing turntable is arranged on the rack and is provided with a plurality of mounting grooves, and one end of each mounting groove penetrates through the outer side surface of the printing turntable; the rack comprises a vertical working face, the auxiliary wheel is arranged on the working face in parallel and located under the lettering rotary disc, and a gap for an optical cable to pass through is formed by the auxiliary wheel and the lettering rotary disc. The lettering module comprises a long-strip-shaped base body, a transmission belt circulating to the position between the front end and the rear end of the base body is arranged on the base body, a plurality of lettering blocks are arranged on the transmission belt at intervals, and connecting rods fixedly connected with the inner wall of the mounting groove are arranged on the two sides of the base body. The character displaying belt is located between the optical cable and the lettering rotating disc through the gap, the character pressing block can be automatically replaced through rotation of the conveying belt, the replacement speed is increased, partial skip printing of the optical cable is avoided, and the overall lettering quality and lettering efficiency are improved.

Description

Technical Field

[0001] The invention relates to the technical field of optical cable printing, and in particular to an automatic mold changing device for optical cable printing blocks. Background Art

[0002] In the production process of optical cables, the printing process is an indispensable part, which provides the necessary identification information for the optical cable, such as model, production date, batch number, etc., in order to achieve the purpose of identification and anti-counterfeiting.

[0003] In the prior art, a hard printing module is usually used to press the pigment on the display tape into a corresponding font and print the pigment part that forms the font on the optical cable, so that a clear font mark can be left on the optical cable. When different content needs to be printed, the printing module needs to be replaced. When replacing, the bolts that fix the printing module need to be removed first, the printing module that needs to be replaced is taken away, and the new printing module is replaced and fixed. This manual replacement method is time-consuming and labor-intensive, and the replaced printing module and other unused printing modules need to be centrally stored. This process requires the printing equipment to be shut down for a long time, resulting in partial leakage of the optical cable, affecting the overall quality of printing. Summary of the invention

[0004] The embodiment of the present invention provides an automatic mold changing device for optical cable printing blocks, which is used to solve the technical problems in the prior art that the automatic mold changing of optical cable printing blocks cannot be achieved, the replacement speed of printing blocks cannot be improved, part of the optical cable is missed, and the overall printing quality is affected.

[0005] In order to achieve the above object, the present invention provides an automatic mold changing device for optical cable printing blocks, comprising: The printing turntable is rotatably mounted on the frame and is provided with a plurality of mounting slots, one end of each mounting slot passing through the outer side of the printing turntable to form an opening; The frame comprises a vertical working surface, the printing turntable is arranged parallel to the working surface, and an auxiliary wheel is arranged on the working surface, the auxiliary wheel is arranged parallel to the working surface and is located directly below the printing turntable, and a gap is formed between the auxiliary wheel and the printing turntable for the optical cable to pass through; A printing module is arranged inside the installation groove, the printing module comprises a long strip-shaped base, a transmission belt circulating between the front and rear ends of the base is arranged on the base, a plurality of letter pressing blocks are arranged at intervals on the transmission belt, and connecting rods fixedly connected to the inner wall of the installation groove are arranged on both sides of the base; The display tape is located between the optical cable and the printing turntable through the gap.

[0006] Furthermore, a fixing frame for fixing the pressing block is also provided on the transmission belt, and both ends of the pressing block extend out of the transmission belt. The size of the fixing frame matches the pressing block. A magnet is provided in the fixing frame, and the magnet magnetically attracts the pressing block in the fixing frame.

[0007] Furthermore, cross beams are provided on both sides of the base, and the front and rear ends of the cross beams extend out of the base, a driving wheel is rotatably provided between the tail ends of the two cross beams, and a driven wheel is rotatably provided between the front sections of the two cross beams, the transmission belt is connected between the driving wheel and the driven wheel, and the transmission belt circulates between the driving wheel, the driven wheel and the top and bottom surfaces of the base, and a driving motor is provided on the outside of one of the cross beams corresponding to the position of the driving wheel.

[0008] Furthermore, a bearing portion is provided at the front end of the crossbeam, and the bearing portion extends vertically outward from the crossbeam. The fixing frame on the transmission belt located at the front end of the base can be pressed against the bearing portion during operation.

[0009] Furthermore, a buffer pad is provided between the fixing frame and the transmission belt.

[0010] Furthermore, a magnetic block for adsorbing the fixing frame is provided on the front of the bearing part, and reinforcing ribs are provided between the back of the bearing part and the outer side of the crossbeam.

[0011] Furthermore, a guide wheel for tensioning the display tape is also provided on the working surface of the frame, and a recovery reel and a release reel for driving the display tape are also provided on the frame.

[0012] Furthermore, it also includes: An acquisition device, used for receiving an instruction to replace an optical cable printing block, and acquiring a transmission and replacement speed V of the transmission belt for the printing block; A collecting device, used to collect the historical replacement records of the optical cable printing block automatic mold changing device, and collect all historical pressing block replacement behaviors from the historical replacement records; A calculation device, used for analyzing the historical replacement behavior of the printing block, and calculating the historical replacement missing printing factor of the optical cable printing block automatic mold changing device based on the analysis result; An optimization device, used for determining a corresponding optimization coefficient based on the historical replacement missing printing factor, and optimizing the transmission replacement speed V according to the optimization coefficient to obtain a target transmission replacement speed, wherein the product value of the determined optimization coefficient and the transmission replacement speed V is used as the target transmission replacement speed; A control device is used to control the transmission belt according to the target transmission change speed.

[0013] Furthermore, the computing device comprises: A classification unit, used for classifying the historical embossing block replacement behaviors based on the analysis results to obtain standard embossing block replacement behaviors and missed embossing block replacement behaviors; A counting unit, used for counting the number of first behaviors of the standard embossing block replacement behavior and the number of second behaviors of the missed-printing embossing block replacement behavior respectively; A determination unit, used for determining the omission degree corresponding to each omission embossing block replacement behavior, and constructing an omission degree sequence according to all omission degrees; A calculation unit is used to calculate the historical replacement missing printing factor of the optical cable printing character block automatic mold changing device based on the first behavior number, the second behavior number and the missing printing degree sequence.

[0014] Furthermore, the optimization device comprises: A first preset unit, used to preset a first preset historical replacement omission factor and a second preset historical replacement omission factor; A second preset unit, used to preset a first preset optimization coefficient, a second preset optimization coefficient, and a third preset optimization coefficient; A coefficient selection unit is used to optimize the transmission change speed V based on the first preset optimization coefficient when a first preset condition is identified, optimize the transmission change speed V based on the second preset optimization coefficient when a second preset condition is identified, and optimize the transmission change speed V based on the third preset optimization coefficient when a third preset condition is identified, wherein: The first preset condition is that the historical replacement omission factor is less than the first preset historical replacement omission factor, the second preset condition is that the historical replacement omission factor is greater than or equal to the first preset historical replacement omission factor and less than the second preset historical replacement omission factor, and the third preset condition is that the historical replacement omission factor is greater than or equal to the second preset historical replacement omission factor.

[0015] Compared with the prior art, the present invention has the following beneficial effects: The invention discloses an automatic mold changing device for optical cable printing blocks, comprising: a printing turntable, a frame, a printing module and a display belt. The printing turntable is arranged on the frame and is provided with a plurality of mounting grooves, one end of the mounting groove passes through the outer side surface of the printing turntable; the frame comprises a vertical working surface, an auxiliary wheel is arranged in parallel on the working surface and is located directly below the printing turntable, and the auxiliary wheel and the printing turntable form a gap for the optical cable to pass through; the printing module comprises a long strip-shaped base body, a transmission belt circulating between the front and rear ends of the base body is arranged on the base body, a plurality of pressing blocks are arranged on the transmission belt at intervals, and connecting rods fixedly connected to the inner wall of the mounting groove are arranged on both sides of the base body; the display belt is located between the optical cable and the printing turntable through the gap, and the pressing blocks can be automatically replaced by rotating the conveyor belt, thereby increasing the replacement speed, avoiding partial leakage of the optical cable, and improving the overall printing quality and printing efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Various other advantages and benefits will become apparent to those of ordinary skill in the art by reading the detailed description of the preferred embodiments below. The accompanying drawings are only for the purpose of illustrating the preferred embodiments and are not to be considered as limiting the present invention. Moreover, the same reference symbols are used throughout the accompanying drawings to represent the same components. In the accompanying drawings: Figure 1 It shows a schematic structural diagram of an automatic mold changing device for optical cable printing blocks according to an embodiment of the present invention; Figure 2 It shows a schematic diagram of the structure of the printing turntable in an embodiment of the present invention; Figure 3 The structure diagram of the printing module in the embodiment of the present invention is shown.

[0017] In the figure, the frame 100, the auxiliary wheel 110, the guide wheel 120, the display belt 121, the printing turntable 200, the mounting groove 210, the optical cable 300, the printing module 40, the base 400, the beam 410, the bearing part 411, the reinforcing rib 412, the connecting rod 413, the transmission belt 500, the driving wheel 501, the driving motor 510, the fixing frame 600, the pressing block 610, and the buffer pad 620. DETAILED DESCRIPTION

[0018] The specific implementation of the present invention is further described in detail below in conjunction with the accompanying drawings and examples. The following examples are used to illustrate the present invention, but are not intended to limit the scope of the present invention.

[0019] In the description of the present application, it should be understood that the terms "center", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present application.

[0020] The terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of the features. In the description of this application, unless otherwise specified, "plurality" means two or more.

[0021] In the description of this application, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0022] The following is a description of preferred embodiments of the present invention with reference to the accompanying drawings.

[0023] like Figure 1-3 As shown, an embodiment of the present invention discloses an automatic mold changing device for optical cable printing blocks, comprising: a printing turntable 200 , a frame 100 , a printing module 40 and a display tape 121 .

[0024] In some embodiments of the present application, the printing turntable 200 is rotatably arranged on the frame 100, and a plurality of mounting grooves 210 are provided, one end of the mounting groove 210 passes through the outer side of the printing turntable 200 to form an opening for making way; the frame 100 includes a vertical working surface, the printing turntable 200 is arranged parallel to the working surface, and an auxiliary wheel 110 is also arranged on the working surface, the auxiliary wheel 110 is arranged parallel to the working surface, and is located directly below the printing turntable 200, the auxiliary wheel 110 and the printing turntable 200 are connected to each other. 00 to form a gap for the optical cable 300 to pass through; the printing module 40 is arranged inside the mounting groove 210, and the printing module 40 includes a long strip-shaped base 400, on which a transmission belt 500 that circulates between its front and rear ends is provided, and a plurality of pressing blocks 610 are arranged at intervals on the transmission belt 500, and connecting rods 413 fixedly connected to the inner wall of the mounting groove 210 are provided on both sides of the base 400; the display belt 121 is located between the optical cable 300 and the printing turntable 200 through the gap.

[0025] It should be noted that the printing module 40 can replace the pressing block 610 by rotating the transmission belt 500. Specifically, different printing blocks are rotated to the front end of the base 400, and the front printing block can extend from the opening of the installation groove 210. When printing, the rotating printing turntable 200 can drive the printing block to press the display belt 121 and the optical cable 300 to complete the printing. Compared with manual installation and adjustment, it is more convenient and faster, and there is no need to store the pressing block 610 that is not in use.

[0026] In some embodiments of the present application, a fixed frame 600 for fixing a embossing block 610 is also provided on the transmission belt 500, and both ends of the embossing block 610 extend out of the transmission belt 500. The size of the fixed frame 600 matches the embossing block 610. A magnet is provided in the fixed frame 600, and the magnet magnetically attracts the embossing block 610 in the fixed frame 600.

[0027] It should be noted that, when in use, the pressing block 610 can be placed in the fixed frame 600 according to needs, and the printing block in the fixed frame 600 can also be quickly disassembled and replaced.

[0028] In some embodiments of the present application, beams 410 are provided on both sides of the base 400, and the front and rear ends of the beams 410 extend out of the base 400. A driving wheel 501 is rotatably provided between the tail ends of the two beams 410, and a driven wheel is rotatably provided between the front sections of the two beams 410. A transmission belt 500 is connected between the driving wheel 501 and the driven wheel, and the transmission belt 500 circulates between the driving wheel 501, the driven wheel, and the top and bottom surfaces of the base 400. A driving motor 510 is provided on the outside of one beam 410 at a position corresponding to the driving wheel 501.

[0029] It should be noted that, in order to install other accessories and ensure that the transmission belt 500 does not interfere with the inner wall of the installation groove 210 during operation, beams 410 are provided on both sides of the base 400 .

[0030] In some embodiments of the present application, a bearing portion 411 is further provided at the front end of the beam 410, and the bearing portion 411 extends vertically outward from the beam 410. The fixing frame 600 located at the front end of the base 400 on the transmission belt 500 can be pressed against the bearing portion 411 during operation.

[0031] It should be noted that when printing, the pressing block 610 needs a certain pressure to press over the display tape 121 and the optical cable 300, so the pressing block 610 is also subjected to a reaction force. In order to prevent the reaction force from damaging the transmission belt 500, a bearing portion 411 is further provided at the front end of the crossbeam 410. The bearing portion 411 extends vertically outward from the crossbeam 410. The fixing frame 600 at the front end of the base 400 on the transmission belt 500 can be pressed against the bearing portion 411 during operation. The bearing portion 411 can be used to support the fixing frame 600 to withstand the reaction force. Ensure the safety of the transmission belt 500.

[0032] In some embodiments of the present application, a buffer pad 620 is further disposed between the fixing frame 600 and the transmission belt 500 .

[0033] It should be noted that the buffer pad 620 can support the fixed frame 600 to leave a gap between it and the bearing part 411, so that the transmission belt 500 can pass through the bearing part 411 normally when driving the fixed frame 600 to move. When printing is required, the buffer pad 620 can be compressed, thereby making the fixed frame 600 pressed against the bearing part 411.

[0034] In some embodiments of the present application, a magnetic block for adsorbing the fixing frame 600 is further provided on the front of the bearing portion 411 , and a reinforcing rib 412 is further provided between the back of the bearing portion 411 and the outer side of the beam 410 .

[0035] It should be noted that the fixing frame 600 can be fixed in a normal position by providing the magnetic block and the reinforcing rib 412 to ensure that the printing is in place.

[0036] In some embodiments of the present application, a guide wheel 120 for tensioning the display tape 121 is further provided on the working surface of the frame 100 , and a recovery reel and a release reel for driving the display tape 121 are also provided on the frame 100 .

[0037] It should be noted that the guide wheel 120, the recovery reel and the release reel can realize accurate driving of the character display tape 121, thereby ensuring operation accuracy and avoiding large errors.

[0038] In some embodiments of the present application, it also includes: The acquisition device is used to receive the optical cable printing block replacement instruction and obtain the transmission replacement speed V of the transmission belt 500 for the pressing block 610; A collection device, used to collect the historical replacement records of the optical cable printing block automatic mold changing device, and collect all historical pressing block replacement behaviors from the historical replacement records; A calculation device, used for analyzing the historical replacement behavior of the printing block, and calculating the historical replacement missing printing factor of the optical cable printing block automatic mold changing device based on the analysis result; An optimization device, used to determine a corresponding optimization coefficient based on the historical replacement missing print factor, and optimize the transmission replacement speed V according to the optimization coefficient to obtain a target transmission replacement speed, wherein the product value of the determined optimization coefficient and the transmission replacement speed V is used as the target transmission replacement speed; The control device is used to control the transmission belt 500 according to the target transmission change speed.

[0039] It should be noted that the historical replacement records include the time point of replacement, the frequency of replacement, the specific character blocks involved, the operators, etc. The historical character block replacement behavior refers to the behavior from receiving the optical cable printing block replacement instruction to completing the printing of the optical cable. The transmission replacement speed of the conveyor belt 500 can be accurately set to avoid the phenomenon of overlapping printing due to the transmission replacement speed being too fast, and the phenomenon of missing printing due to the transmission replacement speed being too slow.

[0040] In some embodiments of the present application, the computing device includes: A classification unit, used for classifying the historical embossing block replacement behaviors based on the parsing results to obtain standard embossing block replacement behaviors and missed embossing block replacement behaviors; A counting unit, used for counting the number of first behaviors of standard embossing block replacement behaviors and the number of second behaviors of missing embossing block replacement behaviors respectively; A determination unit, used for determining the omission degree corresponding to each omission embossing block replacement behavior, and constructing an omission degree sequence according to all omission degrees; The calculation unit is used to calculate the historical replacement missing printing factor of the optical cable printing character block automatic mold changing device based on the first line number, the second line number and the missing printing degree sequence.

[0041] It should be noted that the standard embossing block replacement behavior refers to the replacement behavior that meets the production requirements, and the missing-printing embossing block replacement behavior refers to the replacement behavior when missing printing occurs.

[0042] It should be noted that the indicators for determining the degree of missing printing include the degree of printing omission caused by missing printing, the degree of blurring, and the length of optical cable affected by missing printing. Specifically, one indicator can be selected according to actual conditions to determine the degree of missing printing. The present invention preferably uses the degree of printing omission.

[0043] It should be noted that the omission degree sequence includes the omission degree corresponding to each omission embossing block replacement behavior.

[0044] It should be noted that the historical replacement missing factor of the automatic mold changing device for optical cable printing blocks is calculated according to the following formula: ; Among them, P is the historical replacement missing factor of the automatic mold changing device for optical cable printing blocks, n2 is the number of second lines, n1 is the number of first lines, G i is the i-th omission degree in the omission degree sequence, Gmax is the maximum omission degree in the omission degree sequence, c is the first calculation coefficient, d is the second calculation coefficient, and c+d=1.

[0045] It should be noted that the present invention calculates the historical replacement omission factor of the optical cable printing block automatic mold changing device based on the number of first lines, the number of second lines and the omission degree sequence, which can lay the foundation for optimizing the transmission replacement speed, provide reliable data support, and comprehensively consider all historical pressure block replacement behaviors to avoid errors and the impact of excessive or insufficient transmission replacement speed, thereby improving both printing efficiency and printing quality.

[0046] In some embodiments of the present application, the optimization device includes: A first preset unit, used to preset a first preset historical replacement omission factor and a second preset historical replacement omission factor; A second preset unit, used to preset a first preset optimization coefficient, a second preset optimization coefficient, and a third preset optimization coefficient; The coefficient selection unit is used to optimize the transmission change speed V based on the first preset optimization coefficient when the first preset condition is identified, optimize the transmission change speed V based on the second preset optimization coefficient when the second preset condition is identified, and optimize the transmission change speed V based on the third preset optimization coefficient when the third preset condition is identified, wherein: The first preset condition is that the historical replacement omission factor is less than the first preset historical replacement omission factor, the second preset condition is that the historical replacement omission factor is greater than or equal to the first preset historical replacement omission factor and less than the second preset historical replacement omission factor, and the third preset condition is that the historical replacement omission factor is greater than or equal to the second preset historical replacement omission factor.

[0047] It should be noted that the first preset historical replacement omission factor and the second preset historical replacement omission factor are set by analyzing historical data and through empirical judgment. In this embodiment, the first preset historical replacement omission factor is preferably 4, and the second preset historical replacement omission factor is preferably 7.

[0048] It should be noted that the first preset optimization coefficient, the second preset optimization coefficient and the third preset optimization coefficient are also set by analyzing historical data and through empirical judgment. In this embodiment, the first preset optimization coefficient is preferably 0.85, the second preset optimization coefficient is preferably 1, and the third preset optimization coefficient is preferably 1.15.

[0049] It should be noted that the product of the determined optimization coefficient and the conveying change speed V is used as the target conveying change speed. If the determined optimization coefficient is the first preset optimization coefficient, the target conveying change speed is V*0.85, and the rest are not shown one by one.

[0050] It should be noted that the present invention sets the corresponding optimization coefficient according to the historical replacement omission factor, the first preset historical replacement omission factor and the second preset historical replacement omission factor, thereby achieving precise optimization of the transmission replacement speed, avoiding errors caused by manual calculation, and providing reliable data support for optical cable printing.

[0051] In the description of the above embodiments, specific features, structures, materials or characteristics may be combined in a suitable manner in any one or more embodiments or examples.

[0052] Although the present invention has been described above with reference to the embodiments, various modifications may be made thereto and parts thereof may be replaced with equivalents without departing from the scope of the present invention. In particular, as long as there is no structural conflict, the various features in the embodiments disclosed by the present invention may be used in combination with each other in any manner, and the fact that these combinations are not fully described in this specification is only for the sake of omitting space and saving resources.

[0053] Those skilled in the art can understand that the above are only preferred embodiments of the present invention and are not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions recorded in the aforementioned embodiments or replace some of the technical features therein by equivalents. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. An automatic mold changing device for optical cable printing blocks, characterized in that: include: A printing turntable (200) is rotatably mounted on the frame (100) and is provided with a plurality of mounting slots (210), one end of the mounting slot (210) passing through the outer side surface of the printing turntable (200) to form a clearance opening; The frame (100) comprises a vertical working surface, the printing turntable (200) is arranged parallel to the working surface, and an auxiliary wheel (110) is also arranged on the working surface. The auxiliary wheel (110) is arranged parallel to the working surface and is located directly below the printing turntable (200), and a gap is formed between the auxiliary wheel (110) and the printing turntable (200) for the optical cable (300) to pass through; A printing module (40) is arranged inside the installation groove (210), the printing module (40) comprising a long strip-shaped base (400), the base (400) being provided with a transmission belt (500) circulating between its front and rear ends, a plurality of pressing blocks (610) being arranged at intervals on the transmission belt (500), and connecting rods (413) fixedly connected to the inner wall of the installation groove (210) being arranged on both sides of the base (400); The display tape (121) is located between the optical cable (300) and the printing turntable (200) through the gap.

2. The automatic mold changing device for optical cable printing blocks according to claim 1 is characterized in that: A fixing frame (600) for fixing the word pressing block (610) is also provided on the transmission belt (500), two ends of the word pressing block (610) extend out of the transmission belt (500), the size of the fixing frame (600) matches the word pressing block (610), and a magnet is provided inside the fixing frame (600), and the magnet magnetically attracts the word pressing block (610) inside the fixing frame (600).

3. The automatic mold changing device for optical cable printing blocks according to claim 2 is characterized in that: Crossbeams (410) are arranged on both sides of the base (400), and the front and rear ends of the crossbeams (410) both extend out of the base (400). A driving wheel (501) is rotatably arranged between the tail ends of the two crossbeams (410), and a driven wheel is rotatably arranged between the front sections of the two crossbeams (410). The transmission belt (500) is connected between the driving wheel (501) and the driven wheel, and the transmission belt (500) circulates between the driving wheel (501), the driven wheel, and the top surface and the bottom surface of the base (400). A driving motor (510) is arranged on the outside of one of the crossbeams (410) at a position corresponding to the driving wheel (501).

4. The automatic mold changing device for optical cable printing blocks according to claim 3 is characterized in that: A bearing portion (411) is also provided at the front end of the crossbeam (410), and the bearing portion (411) extends vertically outward from the crossbeam (410). The fixing frame (600) on the transmission belt (500) located at the front end of the base (400) can be pressed against the bearing portion (411) during operation.

5. The automatic mold changing device for optical cable printing blocks according to claim 4 is characterized in that: A buffer pad (620) is also provided between the fixing frame (600) and the transmission belt (500).

6. The automatic mold changing device for optical cable printing blocks according to claim 4 is characterized in that: A magnetic block for adsorbing the fixing frame (600) is also provided on the front of the bearing portion (411), and a reinforcing rib (412) is also provided between the back of the bearing portion (411) and the outer side of the crossbeam (410).

7. The automatic mold changing device for optical cable printing blocks according to claim 1 is characterized in that: A guide wheel (120) for tensioning the display tape (121) is also provided on the working surface of the frame (100), and a recovery reel and a release reel for driving the display tape (121) are also provided on the frame (100).

8. The automatic mold changing device for optical cable printing blocks according to claim 1 is characterized in that: Also includes: An acquisition device, used for receiving an optical cable printing block replacement instruction, and acquiring a transmission replacement speed V of the transmission belt (500) for the pressing block (610); A collection device for collecting the historical replacement records of the optical cable printing block automatic mold changing device, and collecting all historical pressing block replacement behaviors from the historical replacement records; A calculation device, used for analyzing the historical replacement behavior of the printing block, and calculating the historical replacement missing printing factor of the optical cable printing block automatic mold changing device based on the analysis result; An optimization device, used for determining a corresponding optimization coefficient based on the historical replacement missing printing factor, and optimizing the transmission replacement speed V according to the optimization coefficient to obtain a target transmission replacement speed, wherein the product value of the determined optimization coefficient and the transmission replacement speed V is used as the target transmission replacement speed; A control device is used to control the transmission belt (500) according to the target transmission change speed.

9. The automatic mold changing device for optical cable printing blocks according to claim 8, characterized in that: The computing device comprises: A classification unit, used for classifying the historical embossing block replacement behaviors based on the analysis results to obtain standard embossing block replacement behaviors and missed embossing block replacement behaviors; A counting unit, used for counting the number of first behaviors of the standard embossing block replacement behavior and the number of second behaviors of the missed-printing embossing block replacement behavior respectively; A determination unit, used for determining the omission degree corresponding to each omission embossing block replacement behavior, and constructing an omission degree sequence according to all omission degrees; A calculation unit is used to calculate the historical replacement missing printing factor of the optical cable printing character block automatic mold changing device based on the first behavior number, the second behavior number and the missing printing degree sequence.

10. The automatic mold changing device for optical cable printing blocks according to claim 8, characterized in that: The optimization device comprises: A first preset unit, used to preset a first preset historical replacement omission factor and a second preset historical replacement omission factor; A second preset unit, used to preset a first preset optimization coefficient, a second preset optimization coefficient, and a third preset optimization coefficient; A coefficient selection unit is used to optimize the transmission change speed V based on the first preset optimization coefficient when a first preset condition is identified, optimize the transmission change speed V based on the second preset optimization coefficient when a second preset condition is identified, and optimize the transmission change speed V based on the third preset optimization coefficient when a third preset condition is identified, wherein: The first preset condition is that the historical replacement omission factor is less than the first preset historical replacement omission factor, the second preset condition is that the historical replacement omission factor is greater than or equal to the first preset historical replacement omission factor and less than the second preset historical replacement omission factor, and the third preset condition is that the historical replacement omission factor is greater than or equal to the second preset historical replacement omission factor.

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