Automobile cable sealing element and preparation method thereof

Abstract

The invention provides an automobile cable sealing element and a preparation method thereof, and relates to the technical field of cables, and the automobile cable sealing element comprises a sealing installation structure, a sealing pipe section and a sealing pressing structure which are sequentially connected and are coaxially provided with a cable through hole; the sealing installation structure comprises an installation plate, an installation groove is formed in the end, away from the sealing pipe section, of the installation plate, and a first annular sealing piece is arranged in the installation groove. The sealing pipe section comprises a first pipe section, a second pipe section and a third pipe section which are sequentially connected, the end, away from the second pipe section, of the first pipe section is fixedly connected with the end, away from the mounting groove, of the mounting plate, and external threads are arranged on the outer side of the third pipe section; the sealing and pressing structure comprises a connecting sleeve, an internal thread is arranged on the inner wall of the side, close to the third pipe section, of the connecting sleeve, a sealing and clamping device is connected into the third pipe section, a driving device is connected into the connecting sleeve, and the driving device is used for driving the sealing and clamping device to clamp the outer side wall of a cable in the automobile cable sealing piece. According to the invention, sealing of the cable at the cable hole outside the automobile electrical box and the cable hole is realized.

Description

Technical Field

[0001] The invention relates to the technical field of cables, in particular to an automobile cable sealing component and a preparation method thereof. Background Art

[0002] Automobiles are equipped with various electronic devices. Therefore, cables are arranged in the automobile to transmit the desired power and signals to these electronic devices. Therefore, a large number of cables are arranged inside the automobile. Some automobile electrical boxes (such as automobile gearboxes) in the automobile are provided with cable holes in the box wall, so that one end of the cable is inside the automobile electrical box, and the other end of the cable passes through the cable hole of the automobile electrical box to the outside of the automobile electrical box;

[0003] In the prior art, there is a lack of cable sealing structure at the cable hole outside the automobile electrical box (such as the automobile gearbox), which easily causes water ingress at the cable hole and affects the safe use of the automobile electrical box (such as the automobile gearbox). Summary of the invention

[0004] The present invention provides an automobile cable sealing component and a preparation method thereof, which are used to solve the technical problems raised by the above background technology.

[0005] In order to solve the above technical problems, the present invention discloses an automotive cable seal, comprising: a sealing installation structure, a sealing pipe section, and a sealing pressing structure connected in sequence, wherein the sealing installation structure, the sealing pipe section, and the sealing pressing structure are coaxially provided with a cable passing hole;

[0006] The sealing installation structure comprises: a mounting plate, an end of the mounting plate away from the sealing pipe section is provided with a mounting groove, and a first annular sealing member is provided in the mounting groove;

[0007] The sealing pipe section comprises: a first pipe section, a second pipe section, and a third pipe section connected in sequence, wherein one end of the first pipe section away from the second pipe section is fixedly connected to one end of the mounting plate away from the mounting groove, and an external thread is arranged on the outer side of the third pipe section;

[0008] The sealing and clamping structure includes: a connecting sleeve, an inner wall of the connecting sleeve on one side close to the third pipe section is provided with an internal thread, a sealing clamping device is connected inside the third pipe section, a driving device is connected inside the connecting sleeve, and the driving device is used to drive the sealing clamping device to clamp the outer wall of the cable in the automobile cable seal.

[0009] Preferably, the first pipe section, the second pipe section, and the third pipe section are arranged sequentially from bottom to top; the sealing installation structure, the sealing pipe section, and the sealing pressing structure are arranged sequentially from bottom to top;

[0010] The sealing clamping device comprises:

[0011] Two groups of fixing frames are arranged at intervals on the left and right sides, and the two groups of fixing frames are detachably connected to the left and right sides of the upper end of the third pipe section respectively;

[0012] Two groups of T-shaped rods, the two groups of T-shaped rods correspond to the two groups of fixed frames one by one, the lower part of the T-shaped rod slides along the up and down direction to penetrate the corresponding fixed frame, the upper part of the T-shaped rod is connected to the upper end of the second spring, and the lower end of the second spring is connected to the upper end of the fixed frame;

[0013] An annular plate, the annular plate is sleeved and connected in the third pipe section, and a second annular sealing gasket is arranged at the upper end of the annular plate;

[0014] Two groups of left-right symmetrical clamping structures are respectively located on the left and right sides of the cable;

[0015] The clamping structure on the left side includes:

[0016] A semi-annular slider, the lower end of which slides along the left-right direction and is connected to the upper end of the left part of the second annular sealing gasket, a left-lower inclined surface with a right-higher inclined surface is arranged on the left side of the upper end of the semi-annular slider, the right end of the spring one is fixedly connected to the left end of the semi-annular slider, the left end of the spring one is connected to a clamping block, the clamping block is clamped with a clamping groove on the left side wall of the third pipe section, a semi-annular sealing member is arranged on the right end of the semi-annular slider, and the lower end of the T-shaped rod is in contact with the inclined surface;

[0017] The semi-annular seals of the left and right clamping structures are moved closer to each other through the action of the driving device to form a complete annular seal.

[0018] Preferably, the driving device comprises: an annular sleeve, which is connected in the connecting sleeve, the annular sleeve is located at the upper end of the T-shaped rod, and the upper end of the annular sleeve is fixedly connected to the inner wall of the upper end of the connecting sleeve, and a cable passing hole is arranged at the center of the upper end of the connecting sleeve.

[0019] Preferably, an anti-slip protrusion is provided on the outside of the connecting sleeve; and a mounting threaded hole is provided on the mounting plate.

[0020] A method for preparing an automobile cable seal, used for preparing the automobile cable seal, comprising:

[0021] Step S1: respectively processing the mounting plate, the sealing pipe section, the connecting sleeve, and the sealing clamping device;

[0022] Step S2: Connect the spring 1, the semi-annular slider and the clamping block, and then install the second annular sealing gasket, the semi-annular slider and the clamping block into the third pipe section in sequence;

[0023] Step S3: Connect the T-shaped rod, the second spring and the fixing frame, and then install the fixing frame to the upper end of the third pipe section;

[0024] Step S4: Connect the connecting sleeve and the third pipe section.

[0025] Preferably, the injection molded part of the automotive cable seal is prepared based on an injection molding machine, the injection molding machine includes a monitoring module, the monitoring module includes a plurality of second temperature sensors and a timer, the second temperature sensor is used to detect the material temperature at the second temperature monitoring point in the cavity of the injection mold; the timer is used to time the time from when the cavity of the injection mold starts to inject the material to when the detection value of each second temperature sensor is greater than the preset temperature;

[0026] The injection molding process of the injection molded parts includes: periodically performing a trial injection molding process, which includes:

[0027] Step S101: determining standard injection molding process parameters of the current type of injection molded part based on the material information and mold information of the current type of injection molded part; the standard injection molding process parameters of the current type of injection molded part include: standard injection flow rate during injection molding of the injection mold corresponding to the current type of injection molded part, standard time difference from when the cavity of the injection mold corresponding to the current type of injection molded part starts to inject material to when the material reaches the second temperature monitoring point, standard temperature of the material from when the cavity of the injection mold corresponding to the current type of injection molded part starts to inject material to when the material reaches the second temperature monitoring point, standard injection volume of a single injection molded part from when the cavity of the injection mold corresponding to the current type of injection molded part starts to inject material to when the material reaches the second temperature monitoring point, standard injection pressure during injection molding of the current type of injection molded part, standard holding time during injection molding of the current type of injection molded part, and standard melting temperature of the material for preparing the current type of injection molded part;

[0028] Step S102: performing M injection molding tests, the injection molding tests comprising: controlling the injection molding machine to perform injection molding according to the standard injection molding process parameters of the current type of injection molded part to form the current type of injection molded part, and controlling the second temperature sensor and the timer to operate, obtaining the actual time difference from when the cavity of the injection mold corresponding to the current type of injection molded part starts to inject the material to when the material reaches the second temperature monitoring point, and the actual temperature of the material from when the cavity of the injection mold corresponding to the current type of injection molded part starts to inject the material to when the material reaches the second temperature monitoring point;

[0029] Step S103: based on the actual time difference from the start of material injection into the cavity of the injection mold corresponding to the current type of injection molded part to the arrival of the material at the second temperature monitoring point and the actual temperature of the material from the start of material injection into the cavity of the injection mold corresponding to the current type of injection molded part to the arrival of the material at the second temperature monitoring point obtained from the Nth to Mth injection molding tests in step S102, calculate the actual comprehensive injection flow evaluation result and the actual comprehensive injection temperature evaluation result, and calculate the actual comprehensive evaluation result based on the actual comprehensive injection flow evaluation result and the actual comprehensive injection temperature evaluation result; N is greater than or equal to 1 and less than M;

[0030] Step S104: When Alarm when is the first preset comprehensive evaluation result; It is the actual comprehensive evaluation result.

[0031] Preferably, the actual comprehensive injection flow evaluation result, the actual comprehensive injection temperature evaluation result and the actual comprehensive evaluation result are calculated based on the following formula:

[0032] ;

[0033] ;

[0034] is the injection flow evaluation result corresponding to the kth injection molding test; is the injection temperature evaluation result corresponding to the kth injection molding test; H is the total number of second temperature monitoring points of the injection mold corresponding to the current type of injection molded part; The standard injection volume of a single injection molded part from the time when the material is injected into the cavity of the injection mold corresponding to the current type of injection molded part until the material reaches the i-th second temperature monitoring point; The actual time difference from the start of material injection to the arrival of the material at the i-th second temperature monitoring point in the cavity of the injection mold corresponding to the current type of injection molded part obtained in the k-th injection molding test; The standard time difference from the start of material injection into the cavity of the injection mold corresponding to the current type of injection molded part to the time when the material reaches the i-th second temperature monitoring point; The standard injection flow rate when the injection mold corresponding to the current type of injection molded part is injected to form the current type of injection molded part; is obtained from the kth injection molding test The maximum value of is obtained from the kth injection molding test The minimum value of The actual temperature of the material from the start of material injection in the cavity of the injection mold corresponding to the current type of injection molded part obtained in the k-th injection molding test to the material reaching the i-th second temperature monitoring point; The standard temperature of the material from the time when the material is injected into the cavity of the injection mold corresponding to the current type of injection molded part until the material reaches the i-th second temperature monitoring point; The maximum value of the actual temperature of the material from the start of material injection into the cavity of the injection mold corresponding to the current type of injection molded part obtained in the kth injection molding test to the time when the material reaches all the second temperature monitoring points; The minimum value of the actual temperature of the material from the start of material injection into the cavity of the injection mold corresponding to the current type of injection molded part obtained in the kth injection molding test to the material reaching all the second temperature monitoring points;

[0035] ;

[0036] ;

[0037] It is the actual comprehensive injection flow evaluation result; It is the actual comprehensive injection temperature evaluation result;

[0038] ;

[0039] is the injection flow evaluation weight; Evaluation weight for injection temperature.

[0040] Preferably, the monitoring module further includes a plurality of first temperature sensors and timers, wherein the first temperature sensor is used to detect the temperature of a first temperature monitoring point on the surface of the injection mold; during the M injection molding tests, the first temperature sensor is controlled to detect once each time the injection molding starts and is completed;

[0041] Step S103 also obtains the reference temperature difference parameter of the current trial injection molding process, which is the average value of all mold temperature difference parameters obtained from the Nth to the Mth injection molding tests of the current trial injection molding process; the mold temperature difference parameter is: the difference between the surface temperature of the injection mold corresponding to the current type of injection molding when the previous injection molding is completed and the surface temperature of the injection mold corresponding to the current type of injection molding when the next injection molding starts;

[0042] The trial injection molding process also includes:

[0043] Step S105: , calculating the first basic injection flow rate based on step S103; is the second preset comprehensive evaluation result;

[0044] ;

[0045] P is the first basic injection flow rate; is the standard injection flow rate of the injection mold corresponding to the current type of injection molded part; e is a natural constant; is the logarithm to base 10; The flow rate adjustment weight corresponding to the injection flow rate; The flow rate adjustment weight corresponding to the injection temperature;

[0046] After each trial injection molding process is completed, the formal injection molding process is carried out. Before each formal injection molding process, the current mold temperature difference state parameter and the target injection molding flow rate of the current formal injection molding are calculated based on the detection value of the first temperature sensor in the previous injection molding process. During the current formal injection molding process, the actual injection molding flow rate is controlled to be the target injection molding flow rate of the current formal injection molding;

[0047] ;

[0048] U is the current mold temperature difference state parameter, The average detection value of the first temperature sensor at the beginning of the current formal injection molding; The average detection value of the first temperature sensor when the injection molding before the current formal injection molding is completed; It is the reference temperature difference parameter of the most recent trial injection process before the current formal injection;

[0049] ;

[0050] The target injection flow rate for the current formal injection; is the natural logarithm, e is the natural constant; It is the standard time difference from the completion of the previous injection to the start of the next injection; The time difference between the completion of the previous injection and the start of the current formal injection; It is the first basic injection flow rate obtained from the most recent trial injection process before the current formal injection.

[0051] The technical solution of the present invention is further described in detail below through the accompanying drawings and embodiments.

[0052] Compared with the prior art, the present invention has the following beneficial effects:

[0053] In the present invention, the first annular seal is used for primary sealing, and the first annular seal realizes axial sealing and radial sealing of the cable hole of the automobile electrical box (such as automobile gearbox) and radial sealing of the cable;

[0054] The driving device drives the sealing clamping device to clamp the outer wall of the cable in the automobile cable seal, thereby ensuring the connection stability between the cable and the automobile cable seal; and the sealing clamping device can perform secondary sealing on the cable where it is located, thereby ensuring reliable sealing of the cable.

[0055] The present invention solves the following problems raised by the background technology: In the prior art, there is a lack of cable sealing structure at the cable hole outside the automobile electrical box (such as the automobile gearbox), which makes it easy for water to enter the cable hole and affect the safe use of the automobile electrical box (such as the automobile gearbox). BRIEF DESCRIPTION OF THE DRAWINGS

[0056] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. Together with the embodiments of the present invention, they are used to explain the present invention and do not constitute a limitation of the present invention. In the accompanying drawings:

[0057] Figure 1 It is a schematic diagram of the external structure of the automotive cable seal of the present invention;

[0058] Figure 2It is a schematic diagram of the main internal structure of the connecting sleeve and the third pipe section connection of the present invention.

[0059] Figure 3 It is a top view of the cable sealing by the semi-annular seal and the semi-annular slider of the present invention.

[0060] In the figure: 1. sealing installation structure; 11. mounting plate; 12. mounting groove; 13. mounting threaded hole; 2. sealing pipe section; 21. first pipe section; 22. second pipe section; 23. third pipe section; 231. clamping groove; 24. external thread; 3. sealing pressing structure; 31. connecting sleeve; 311. anti-skid protrusion; 4. sealing clamping device; 41. fixing frame; 42. T-bar; 43. spring 2; 44. annular plate; 45. annular sealing pad; 46. semi-annular slider; 47. inclined plane; 48. spring 1; 49. clamping block; 410. semi-annular seal; 5. driving device; 51. annular sleeve; 6. cable; 7. cable passing hole. DETAILED DESCRIPTION

[0061] The preferred embodiments of the present invention are described below in conjunction with the accompanying drawings. It should be understood that the preferred embodiments described herein are only used to illustrate and explain the present invention, and are not used to limit the present invention.

[0062] In addition, in the present invention, the descriptions of "first", "second", etc. are only used for descriptive purposes, and do not specifically refer to the order or sequence, nor are they used to limit the present invention. They are only used to distinguish components or operations described with the same technical terms, and cannot be understood as indicating or implying their relative importance or implicitly indicating the number of technical features indicated. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In addition, the technical solutions and technical features between the various embodiments can be combined with each other, but they must be based on the ability of ordinary technicians in the field to implement them. When the combination of technical solutions is contradictory or cannot be implemented, it should be considered that such a combination of technical solutions does not exist and is not within the scope of protection required by the present invention.

[0063] The present invention provides the following embodiments

[0064] Embodiment 1, the present invention provides an automotive cable seal, such as Figure 1-Figure 3 As shown, it comprises: a sealing installation structure 1, a sealing pipe section 2, and a sealing pressing structure 3 connected in sequence, wherein the sealing installation structure 1, the sealing pipe section 2, and the sealing pressing structure 3 are coaxially provided with a cable passing hole 7;

[0065] The sealing installation structure 1 comprises: a mounting plate 11, an end of the mounting plate 11 away from the sealing pipe section 2 is provided with a mounting groove 12, and a first annular sealing member is provided in the mounting groove 12;

[0066] The sealing pipe section 2 includes: a first pipe section 21, a second pipe section 22, and a third pipe section 23 connected in sequence, wherein one end of the first pipe section 21 away from the second pipe section 22 is fixedly connected to one end of the mounting plate 11 away from the mounting groove 12, and an external thread 24 is arranged on the outer side of the third pipe section 23;

[0067] The sealing and clamping structure 3 includes: a connecting sleeve 31, an inner wall of the connecting sleeve 31 close to the third pipe section 23 is provided with an internal thread, a sealing clamping device 4 is connected inside the third pipe section 23, and a driving device 5 is connected inside the connecting sleeve 31. The driving device 5 is used to drive the sealing clamping device 4 to clamp the outer wall of the cable 6 in the automobile cable seal.

[0068] The connecting sleeve 31 is provided with an anti-slip protrusion 311; the mounting plate 11 is provided with a mounting threaded hole 13 (the outer wall surface of the cable hole of the automobile electrical box (such as the automobile gearbox) is provided with a matching threaded hole corresponding to the mounting threaded hole);

[0069] The sealing clamping device 4 of the present invention can also adopt an existing cable sealing clamping device;

[0070] In the present invention, the first sealing gasket may be an existing open gasket;

[0071] In the prior art, the cable hole of the automobile electrical box (such as the automobile gearbox) has an inner diameter larger than the outer diameter of the cable in order to facilitate the passage of cables of various sizes (and sometimes to facilitate the passage of the cable plug); in the present invention, the inner diameter of the cable through hole 7 can be set to be the same as the diameter of the cable hole of the automobile electrical box (such as the automobile gearbox); in the present invention, an open gasket can also be detachably provided at the cable through hole 7 at the top of the connecting sleeve 31, and the open gasket sealing sleeve at the cable through hole 7 at the top of the connecting sleeve 31 is provided outside the cable;

[0072] The working principle and beneficial effects of the above technical solution are:

[0073] In the present invention, firstly, a first annular seal is selected according to the diameter of a cable that needs to pass through a cable hole on an automobile electrical box (such as an automobile gearbox); the inner diameter of the first annular seal matches the outer diameter of the cable that needs to be sealed by the current automobile cable seal, so as to achieve radial sealing of the cable; the outer diameter of the first annular seal is larger than the diameter of the cable hole on the automobile electrical box (such as an automobile gearbox);

[0074] The first annular seal is installed in the installation groove 12, and the cable in the automobile electrical box (such as an automobile gearbox) passes through the cable hole of the automobile electrical box (such as an automobile gearbox) to the outside of the automobile electrical box (such as an automobile gearbox), and then passes through the sealing installation structure 1, the sealing pipe section 2, and the sealing pressing structure 3 in sequence, and then the mounting plate 11 is connected to the outer wall surface of the automobile electrical box (such as an automobile gearbox) where the cable hole is set through screws and mounting threaded holes 13 (at this time, the first annular seal is used for primary sealing, and the first annular seal realizes axial sealing, radial sealing and radial sealing of the cable at the cable hole of the automobile electrical box (such as an automobile gearbox)). Finally, the driving device 5 drives the sealing clamping device 4 to clamp the outer side wall of the cable 6 in the automobile cable seal, thereby ensuring the connection stability of the cable 6 and the automobile cable seal; and the sealing clamping device 4 can perform secondary sealing on the cable where it is located, thereby ensuring reliable sealing of the cable 6.

[0075] The present invention solves the following problems raised by the background technology: In the prior art, there is a lack of cable sealing structure at the cable hole outside the automobile electrical box (such as the automobile gearbox), which makes it easy for water to enter the cable hole and affect the safe use of the automobile electrical box (such as the automobile gearbox).

[0076] Embodiment 2, on the basis of embodiment 1, as Figure 1-Figure 3 As shown, the first pipe section 21, the second pipe section 22, and the third pipe section 23 are arranged from bottom to top in sequence; the sealing installation structure 1, the sealing pipe section 2, and the sealing pressing structure 3 are arranged from bottom to top in sequence;

[0077] The sealing clamping device 4 comprises:

[0078] Two groups of fixing frames 41 are arranged at intervals on the left and right sides, and the two groups of fixing frames 41 are detachably connected to the left and right sides of the upper end of the third pipe section 23;

[0079] Two groups of T-shaped rods 42, the two groups of T-shaped rods 42 correspond to the two groups of fixing frames 41 one by one, the lower part of the T-shaped rod 42 slides along the up-down direction to penetrate the corresponding fixing frame 41, the upper part of the T-shaped rod 42 is connected to the upper end of the second spring 43, and the lower end of the second spring 43 is connected to the upper end of the fixing frame 41;

[0080] The annular plate 44 is sleeved and connected in the third pipe section 23, and a second annular sealing gasket 45 is provided at the upper end of the annular plate 44; the annular plate 44 is configured to be integrally formed with the third pipe section 23 or the annular plate 44 is fixedly connected or detachably connected to the inner wall of the third pipe section 23 (such as clamping or connecting by screws).

[0081] Two groups of left-right symmetrical clamping structures, the two groups of left-right symmetrical clamping structures are respectively located on the left and right sides of the cable 6;

[0082] The clamping structure on the left side includes:

[0083] A semi-annular slider 46, the lower end of which is slidably connected to the upper end of the left part of the second annular sealing gasket 45 along the left-right direction, a slope 47 with a lower left side and a higher right side is arranged on the left side of the upper end of the semi-annular slider 46, the right end of a spring 48 is fixedly connected to the left end of the semi-annular slider 46, the left end of the spring 48 is connected to a clamping block 49, the clamping block 49 is clamped with the clamping groove 231 of the left side wall of the third pipe section 23, a semi-annular sealing member 410 is arranged on the right end of the semi-annular slider 46 (the semi-annular slider 46 and the semi-annular sealing member 410 may be clamped), and the lower end of the T-shaped rod 42 is in contact with the slope 47; wherein, the lower end of the T-shaped rod 42 may be provided with a slope and an arc surface that are in contact with and matched with the slope 47;

[0084] The semi-annular seals 410 of the left and right clamping structures are moved closer to each other by the driving device 5 to form a complete annular seal.

[0085] The driving device 5 comprises: an annular sleeve 51, the annular sleeve 51 is sleeved and connected in the connecting sleeve 31, the annular sleeve 51 is located at the upper end of the T-shaped rod 42, and the upper end of the annular sleeve 51 is fixedly connected to the inner wall of the upper end of the connecting sleeve 31, and a cable passing hole 7 is arranged at the center of the upper end of the connecting sleeve 31. In the present invention, the annular sleeve 51 is arranged to be integrally formed with the connecting sleeve 31 or the upper end of the annular sleeve 51 is fixedly connected or detachably connected to the inner wall of the upper end of the connecting sleeve 31;

[0086] The working principle and beneficial effects of the above technical solution are:

[0087] The cable in the automobile electrical box (such as automobile gearbox) passes through the cable hole of the automobile electrical box (such as automobile gearbox) to the outside of the automobile electrical box (such as automobile gearbox), and then passes through the sealing installation structure 1, the sealing pipe section 2, and the sealing pressing structure 3 in sequence (such as Figure 2 As shown, at this time, the spring 43 is not compressed, and the lower end of the T-shaped rod 42 is located at the top of the inclined surface 47). Then, the mounting plate 11 is connected to the outer wall surface of the cable hole of the automobile electrical box (such as an automobile gearbox) by screws and mounting threaded holes 13. Then, the connecting sleeve 31 is rotated to make the connecting sleeve 31 move downward on the third pipe section 23. The lower end of the annular sleeve 51 in the connecting sleeve 31 presses down the T-shaped rod 42. The lower end of the T-shaped rod 42 cooperates with the inclined surface 47, so that the left and right semi-annular sliders 46 are close to each other, thereby making the left and right semi-annular seals 410 close to each other, until the left and right semi-annular seals 410 fit together to form a complete annular seal (such as Figure 3 As shown), radial sealing is performed on the cable 6 where the semi-annular seal 410 is located, and at the same time, the second annular sealing gasket 45 at the lower end of the semi-annular seal 410 seals between the third pipe section 23 and the cable 6 to ensure the sealing effect on the cable 6.

[0088] Embodiment 3, the present invention also discloses a method for preparing an automotive cable seal, which is used to prepare the automotive cable seal, comprising:

[0089] Step S1: respectively processing the mounting plate 11, the sealing pipe section 2, the connecting sleeve 31, and the sealing clamping device;

[0090] Step S2: Connect the spring 1 48, the semi-annular slider 46, and the clamping block 49, and then sequentially install the second annular sealing gasket 45, the semi-annular slider 46, and the clamping block 49 into the third pipe section 23;

[0091] Step S3: Connect the T-shaped rod 42, the second spring 43 and the fixing frame 41, and then install the fixing frame 41 to the upper end of the third pipe section 23;

[0092] Step S4: connecting the connecting sleeve 31 and the third pipe section 23 .

[0093] Example 4, on the basis of Example 3, the injection molded part of the automobile cable seal (may include the connecting sleeve 31, the second annular seal, etc.) is prepared based on an injection molding machine, and the injection molding machine includes a monitoring module, and the monitoring module includes a plurality of second temperature sensors and a timer, the second temperature sensor is used to detect the material temperature at the second temperature monitoring point in the cavity of the injection mold; the timer is used to time the time from when the cavity of the injection mold starts to inject the material to when the detection value of each second temperature sensor is greater than the preset temperature; the detection value of the second temperature sensor is greater than the preset temperature, indicating that the material has reached the position where the second temperature sensor is located;

[0094] The injection molding process of the injection molded parts includes: periodically performing a trial injection molding process, which includes:

[0095] Step S101: Determine the standard injection molding process parameters of the current type of injection molded part based on the material information and mold information of the current type of injection molded part; determine the standard injection molding flow rate of the injection mold corresponding to the current type of injection molded part during injection molding, the standard time difference from the start of material injection into the cavity of the injection mold corresponding to the current type of injection molded part to the arrival of the material at the second temperature monitoring point, the standard temperature of the material from the start of material injection into the cavity of the injection mold corresponding to the current type of injection molded part to the arrival of the material at the second temperature monitoring point, the standard injection volume of a single injection molded part from the start of material injection into the cavity of the injection mold corresponding to the current type of injection molded part to the arrival of the material at the second temperature monitoring point, and the standard injection molding volume of the current type of injection molded part. Standard injection pressure during injection molding, standard holding time during injection molding of the current type of injection molded parts, standard melting temperature of materials for preparing the current type of injection molded parts, etc. (specific injection molding process parameters are prior art); standard injection molding process parameters for the current type of injection molded parts are injection molding process parameters that can ensure the quality of injection molded parts, obtained through injection molding tests before batch injection molding of injection molded parts (basic injection molding parameters for the current type of injection molded parts are determined based on material information and mold information of the current type of injection molded parts, and then the basic injection molding parameters are verified and adjusted through injection molding tests, and finally the injection molding process parameters that can ensure the quality of injection molded parts, i.e., standard injection molding process parameters for injection molded parts, are obtained);

[0096] Step S102: performing M injection molding tests, the injection molding tests comprising: controlling the injection molding machine to perform injection molding according to the standard injection molding process parameters of the current type of injection molded part to form the current type of injection molded part, and controlling the second temperature sensor and the timer to operate, obtaining the actual time difference from when the cavity of the injection mold corresponding to the current type of injection molded part starts to inject the material to when the material reaches the second temperature monitoring point, and the actual temperature of the material from when the cavity of the injection mold corresponding to the current type of injection molded part starts to inject the material to when the material reaches the second temperature monitoring point;

[0097] Step S103: based on the actual time difference from the start of material injection into the cavity of the injection mold corresponding to the current type of injection molded part to the arrival of the material at the second temperature monitoring point and the actual temperature of the material from the start of material injection into the cavity of the injection mold corresponding to the current type of injection molded part to the arrival of the material at the second temperature monitoring point obtained from the Nth to Mth injection molding tests in step S102, calculate the actual comprehensive injection flow evaluation result and the actual comprehensive injection temperature evaluation result, and calculate the actual comprehensive evaluation result based on the actual comprehensive injection flow evaluation result and the actual comprehensive injection temperature evaluation result; N is greater than or equal to 1 and less than M;

[0098] Step S104: When Alarm when is the first preset comprehensive evaluation result; It is the actual comprehensive evaluation result.

[0099] The actual comprehensive injection flow evaluation result, the actual comprehensive injection temperature evaluation result and the actual comprehensive evaluation result are calculated based on the following formula:

[0100] ;

[0101] ;

[0102] is the injection flow evaluation result corresponding to the kth injection molding test; is the injection temperature evaluation result corresponding to the kth injection molding test; H is the total number of second temperature monitoring points of the injection mold corresponding to the current type of injection molded part; The standard injection volume of a single injection molded part from the time when the material is injected into the cavity of the injection mold corresponding to the current type of injection molded part until the material reaches the i-th second temperature monitoring point; The actual time difference from the start of material injection to the arrival of the material at the i-th second temperature monitoring point in the cavity of the injection mold corresponding to the current type of injection molded part obtained in the k-th injection molding test; The standard time difference from the start of material injection into the cavity of the injection mold corresponding to the current type of injection molded part to the time when the material reaches the i-th second temperature monitoring point; The standard injection flow rate when the injection mold corresponding to the current type of injection molded part is injected to form the current type of injection molded part; is obtained from the kth injection molding test The maximum value of is obtained from the kth injection molding test The minimum value of The actual temperature of the material from the start of material injection in the cavity of the injection mold corresponding to the current type of injection molded part obtained in the k-th injection molding test to the material reaching the i-th second temperature monitoring point; The standard temperature of the material from the time when the material is injected into the cavity of the injection mold corresponding to the current type of injection molded part until the material reaches the i-th second temperature monitoring point; The maximum value of the actual temperature of the material from the start of material injection into the cavity of the injection mold corresponding to the current type of injection molded part obtained in the kth injection molding test to the time when the material reaches all the second temperature monitoring points; The minimum value of the actual temperature of the material from the start of material injection into the cavity of the injection mold corresponding to the current type of injection molded part obtained in the kth injection molding test to the material reaching all the second temperature monitoring points;

[0103] ;

[0104] ;

[0105] It is the actual comprehensive injection flow evaluation result; It is the actual comprehensive injection temperature evaluation result;

[0106] ;

[0107] The injection flow evaluation weight (the value is greater than 0 and less than 1, and is set according to the importance / influence of the injection flow on the quality of the injection molded part); It is the injection temperature evaluation weight (the value is greater than 0 and less than 1, and is set according to the importance / influence of the injection temperature on the quality of the injection molded part).

[0108] The beneficial effects of the above technical solution are:

[0109] A trial injection molding process is periodically performed during the entire batch injection molding process of the injection molded parts to evaluate the injection molding effect of the current material on the cavity of the injection mold corresponding to the current type of injection molded parts, and multiple second temperature monitoring points are set in the cavity of the injection mold corresponding to the current type of injection molded parts. The actual time difference from the start of material injection to the arrival of the material at the second temperature monitoring point and the actual temperature of the material are obtained through the injection molding test, and the actual time difference from the start of material injection to the arrival of the material at the second temperature monitoring point and the actual temperature of the material are obtained from the Nth to Mth injection molding tests after removing the previous injection molding tests (initially, due to the influence of the lowering of the initial temperature of the mold, the mold temperature is still low at the start of each injection molding in the previous one or several injection molding tests) to obtain the actual time difference from the start of material injection to the arrival of the material at the second temperature monitoring point and the actual temperature of the material in the cavity of the injection mold corresponding to the current type of injection molded parts and the actual temperature of the material are calculated based on the actual time difference from the start of material injection to the arrival of the material at the second temperature monitoring point and the actual temperature of the material in the cavity of the injection mold corresponding to the current type of injection molded parts obtained from the Nth to Mth injection molding tests to ensure the reliability of the calculation;

[0110] An actual comprehensive evaluation result is obtained through comprehensive evaluation based on the material arrival time status at different second temperature monitoring points (corresponding to the actual comprehensive injection flow evaluation result) and the material arrival temperature status at different second temperature monitoring points (corresponding to the actual comprehensive injection temperature evaluation result). When the actual comprehensive evaluation result is greater than or equal to the first preset comprehensive evaluation result, an alarm is issued to remind the operator to inspect the relevant devices used for cavity injection molding of the injection mold corresponding to the current type of injection molded parts (such as inspecting the working efficiency of the injection power device and the blockage status of the injection-related pipelines).

[0111] Embodiment 5, based on embodiment 4, the monitoring module further includes a plurality of first temperature sensors and a timer, the first temperature sensor is used to detect the temperature of a first temperature monitoring point on the surface of the injection mold; during M injection molding tests, the first temperature sensor is controlled to detect once each time the injection molding starts and is completed;

[0112] Step S104 also obtains the reference temperature difference parameter of the current trial injection molding process, which is the average value of all mold temperature difference parameters obtained from the Nth to Mth injection molding tests of the current trial injection molding process (among all mold temperature difference parameters obtained from the Nth to Mth injection molding tests: the first temperature difference parameter is the difference between the surface temperature of the injection mold corresponding to the current type of injection molding when the Nth injection molding is completed and the surface temperature of the injection mold corresponding to the current type of injection molding when the N+1th injection molding starts; the last temperature difference parameter is the difference between the surface temperature of the injection mold corresponding to the current type of injection molding when the M-1th injection molding is completed and the surface temperature of the injection mold corresponding to the current type of injection molding when the Mth injection molding starts); the mold temperature difference parameter is: the difference between the surface temperature of the injection mold corresponding to the current type of injection molding when the previous injection molding is completed and the surface temperature of the injection mold corresponding to the current type of injection molding when the next injection molding starts; injection molding completion is the moment when the injection molding part is pressure-maintained and can be taken out, and injection molding start is the moment when the injection molding start button is pressed;

[0113] The trial injection molding process also includes:

[0114] Step S105: When the first basic injection flow rate is calculated based on step S104; is the second preset comprehensive evaluation result;

[0115] ;

[0116] P is the first basic injection flow rate; is the standard injection flow rate of the injection mold corresponding to the current type of injection molded part; e is a natural constant; is the logarithm to base 10; The flow rate adjustment weight corresponding to the injection flow rate (the value is greater than 0 and less than 0.5, and is set according to the importance of injection flow rate adjustment based on the actual injection flow rate difference, and the value can be 0.132); The flow rate regulation weight corresponding to the injection temperature (the value is greater than 0 and less than 0.5, and is set according to the importance of injection rate regulation based on the actual injection temperature difference. The value can be 0.073);

[0117] After each trial injection molding process is completed, the formal injection molding process is carried out. Before each formal injection molding process, the current mold temperature difference state parameter and the target injection molding flow rate of the current formal injection molding are calculated based on the detection value of the first temperature sensor in the previous injection molding process. During the current formal injection molding process, the actual injection molding flow rate is controlled to be the target injection molding flow rate of the current formal injection molding;

[0118] ;

[0119] U is the current mold temperature difference state parameter, The average detection value of the first temperature sensor at the beginning of the current formal injection molding; The average detection value of the first temperature sensor when the injection molding before the current formal injection molding is completed; It is the reference temperature difference parameter of the most recent trial injection process before the current formal injection;

[0120] ;

[0121] The target injection flow rate for the current formal injection; is the natural logarithm, e is the natural constant; The standard time difference from the completion of the previous injection to the start of the next injection (obtained by calculating the average value after testing); The time difference between the completion of the previous injection and the start of the current formal injection ( and The absolute value of the difference is less than the preset difference); It is the first basic injection flow rate obtained from the most recent trial injection process before the current formal injection.

[0122] The beneficial effects of the above technical solution are:

[0123] The first basic injection flow rate is based on the material arrival time status (corresponding to the actual comprehensive injection flow rate evaluation result) of different second temperature monitoring points in the trial injection molding process, the material arrival temperature status (corresponding to the actual comprehensive injection temperature evaluation result) of different second temperature monitoring points, and the actual comprehensive evaluation result to make an initial adjustment to the standard injection flow rate of the injection mold corresponding to the current type of injection molded parts during injection molding, so as to ensure that the material arrival time and the material arrival temperature of the second temperature monitoring point meet the requirements;

[0124] Due to the change in the ambient temperature of the injection molding machine, the heat dissipation state of the injection mold corresponding to the current type of injection molded part changes, thereby changing the current mold temperature difference state parameters. Based on the current mold temperature difference state parameters, the first basic injection flow obtained in the most recent trial injection process before the current formal injection is further corrected to obtain the target injection flow of the current formal injection. The calculation is reliable, ensuring accurate control of the injection flow of the current formal injection.

[0125] Embodiment 6, based on Embodiment 3, further includes a step of selecting the size of the semi-annular seal 410, and the step of selecting the size of the semi-annular seal 410 includes:

[0126] Step S201: obtaining the size information of the cable 6 to be sealed (including the diameter of the cable 6 to be sealed), the size information of the semi-annular slider 46 (including the inner radius of the semi-annular slider 46), and the material information of the semi-annular seal 410 (including the elastic modulus of the semi-annular seal 410 and the Poisson's ratio of the semi-annular seal 410);

[0127] Step S202: obtaining the required clamping information of the cable 6 to be sealed, the required clamping information of the cable 6 to be sealed including: the required sealing elastic force between the semi-annular seal 410 and the cable 6 to be sealed (a preset value, which can be obtained based on a test), and the required tension force for pulling the cable 6 to be sealed out from between the semi-annular seal 410 (a preset value, which is set according to the tension state of the cable 6 in the actual application environment of the cable 6 to be sealed);

[0128] Step S203: Calculating a first target outer diameter of the semi-annular seal 410 based on the information obtained in step S201 and the required sealing elastic force between the semi-annular seal 410 and the cable 6 to be sealed;

[0129] ;

[0130] D is a first target outer diameter of the semi-annular seal 410; is the diameter of the cable 6 to be sealed; is the positive tolerance of the diameter of the cable 6 to be sealed; is the negative tolerance of the diameter of the cable 6 to be sealed; The positive tolerance of the radial distance between the outer wall of the cable 6 and the inner wall of the semi-annular slider 46 when the left and right semi-annular sliders 46 are fitted together; When the left and right semi-circular sliders 46 are fitted together (such as Figure 3 As shown, the cable 6 is fitted to form a complete ring), the negative tolerance of the radial distance between the outer wall of the cable 6 and the inner wall of the semi-annular slider 46; E is the elastic modulus of the semi-annular seal 410; F is the required sealing elastic force between the semi-annular seal 410 and the cable 6 to be sealed; is the Poisson's ratio of the semi-annular seal 410; is the unit area;

[0131] Step S204: Calculating a second target outer diameter of the semi-annular seal 410 based on the first target outer diameter of the semi-annular seal 410 and the required pulling force for pulling the cable 6 to be sealed out from between the semi-annular seals 410;

[0132] ;

[0133] is a second target outer diameter of the semi-annular seal 410; The required pulling force for pulling the cable 6 to be sealed out from between the semi-annular seals 410; is the friction coefficient between the cable 6 to be sealed and the semi-annular seal 410; Y is the inner radius of the semi-annular slider 46; is the natural logarithm, e is the natural constant;

[0134] Step S205: preparing the semi-annular seal 410 according to the second target outer diameter of the semi-annular seal 410; wherein the inner diameter of the semi-annular seal 410 is the same as the outer diameter of the cable 6 to be sealed.

[0135] The beneficial effects of the above technical solution are as follows: based on: the required sealing elastic force between the semi-annular seal 410 and the cable 6 to be sealed, the required pulling force to pull the cable 6 to be sealed out from between the semi-annular seal 410, the size information of the cable 6 to be sealed, the size information of the semi-annular slider 46, and the material information of the semi-annular seal 410, the second target outer diameter of the semi-annular seal 410 is selected, so that after the semi-annular seal 410 of the second target outer diameter is installed on the inner wall of the semi-annular slider 46, when the left and right semi-annular sliders 46 are fitted (such as Figure 3 As shown, they are fitted to form a complete ring shape), the extrusion state of the semi-annular seal 410 can ensure that the actual sealing elastic force between the semi-annular seal 410 and the cable 6 to be sealed is close to the required sealing elastic force, thereby ensuring the sealing effect; and the actual required pulling force for pulling the cable 6 to be sealed out from between the semi-annular seals 410 is large enough (the above-mentioned actual required pulling force is close to the above-mentioned required pulling force), thereby avoiding unstable connection between the cable 6 to be sealed and the automotive cable seal.

[0136] Obviously, those skilled in the art can make various changes and modifications to the present invention without departing from the spirit and scope of the present invention. Thus, if these modifications and variations of the present invention fall within the scope of the claims of the present invention and their equivalents, the present invention is also intended to include these modifications and variations.

Claims

1. An automotive cable seal, characterized in that: include: A sealing installation structure (1), a sealing pipe section (2), and a sealing pressing structure (3) are connected in sequence, and a cable passing hole (7) is coaxially arranged on the sealing installation structure (1), the sealing pipe section (2), and the sealing pressing structure (3); The sealing installation structure (1) comprises: a mounting plate (11), an end of the mounting plate (11) away from the sealing pipe section (2) is provided with a mounting groove (12), and a first annular sealing member is provided in the mounting groove (12); The sealing pipe section (2) comprises: a first pipe section (21), a second pipe section (22), and a third pipe section (23) which are connected in sequence, wherein one end of the first pipe section (21) away from the second pipe section (22) is fixedly connected to one end of the mounting plate (11) away from the mounting groove (12), and an external thread (24) is provided on the outer side of the third pipe section (23); The sealing and clamping structure (3) comprises: a connecting sleeve (31); an inner wall of the connecting sleeve (31) close to the third pipe section (23) is provided with an internal thread; a sealing clamping device (4) is connected inside the third pipe section (23); a driving device (5) is connected inside the connecting sleeve (31); the driving device (5) is used to drive the sealing clamping device (4) to clamp the outer wall of the cable (6) in the automobile cable seal.

2. The automotive cable seal according to claim 1, characterized in that: The first pipe section (21), the second pipe section (22), and the third pipe section (23) are arranged in sequence from bottom to top; the sealing installation structure (1), the sealing pipe section (2), and the sealing pressing structure (3) are arranged in sequence from bottom to top; The sealing clamping device (4) comprises: Two groups of fixing frames (41) are arranged at intervals on the left and right sides, and the two groups of fixing frames (41) are detachably connected to the left and right sides of the upper end of the third pipe section (23); Two groups of T-shaped rods (42), the two groups of T-shaped rods (42) correspond to the two groups of fixed frames (41) one by one, the lower part of the T-shaped rod (42) slides along the up and down direction to penetrate the corresponding fixed frame (41), the upper part of the T-shaped rod (42) is connected to the upper end of the second spring (43), and the lower end of the second spring (43) is connected to the upper end of the fixed frame (41); an annular plate (44), the annular plate (44) being sleeved and connected in the third pipe section (23), and a second annular sealing gasket (45) being arranged at the upper end of the annular plate (44); Two groups of left-right symmetrical clamping structures, the two groups of left-right symmetrical clamping structures are respectively located on the left and right sides of the cable (6); The clamping structure on the left side includes: A semi-annular slider (46), the lower end of which is slidably connected to the upper end of the left part of the second annular sealing pad (45) along the left-right direction, a slope (47) which is lower on the left and higher on the right is arranged on the left side of the upper end of the semi-annular slider (46), the right end of a spring (48) is fixedly connected to the left end of the semi-annular slider (46), the left end of the spring (48) is connected to a clamping block (49), the clamping block (49) is clamped with a clamping groove (231) on the left side wall of the third pipe section (23), a semi-annular sealing member (410) is arranged on the right end of the semi-annular slider (46), and the lower end of the T-shaped rod (42) is in contact with the slope (47); The semi-annular sealing members (410) of the left and right clamping structures are moved closer to each other through the action of the driving device (5) to form a complete annular sealing member.

3. The automotive cable seal according to claim 2, characterized in that: The driving device (5) comprises: an annular sleeve (51), the annular sleeve (51) being sleeved and connected in the connecting sleeve (31), the annular sleeve (51) being located at the upper end of the T-shaped rod (42), and the upper end of the annular sleeve (51) being fixedly connected to the inner wall of the upper end of the connecting sleeve (31), and a cable passing hole (7) being arranged at the center of the upper end of the connecting sleeve (31).

4. The automotive cable seal according to claim 2, characterized in that: An anti-slip protrusion (311) is arranged outside the connecting sleeve (31); and a mounting threaded hole (13) is arranged on the mounting plate (11).

5. A method for preparing an automotive cable seal, used for preparing an automotive cable seal as claimed in any one of claims 1 to 4, characterized in that: include: Step S1: respectively processing the mounting plate (11), the sealing pipe section (2), the connecting sleeve (31), and the sealing clamping device; Step S2: Connect the spring 1 (48), the semi-annular slider (46), and the clamping block (49), and then sequentially install the second annular sealing gasket (45), the semi-annular slider (46), and the clamping block (49) into the third pipe section (23); Step S3: Connect the T-shaped rod (42), the second spring (43) and the fixing frame (41), and then install the fixing frame (41) to the upper end of the third pipe section (23); Step S4: Connect the connecting sleeve (31) and the third pipe section (23).

6. The method for preparing an automotive cable seal according to claim 5, characterized in that: The injection molded part of the automotive cable seal is prepared based on an injection molding machine, the injection molding machine includes a monitoring module, the monitoring module includes a plurality of second temperature sensors and a timer, the second temperature sensor is used to detect the material temperature of a second temperature monitoring point in the cavity of the injection mold; The timer is used to time the time from when the injection mold cavity starts to inject the material to when the detection value of each second temperature sensor is greater than the preset temperature; The injection molding process of the injection molded parts includes: periodically performing a trial injection molding process, which includes: Step S101: determining standard injection molding process parameters of the current type of injection molded part based on the material information and mold information of the current type of injection molded part; the standard injection molding process parameters of the current type of injection molded part include: standard injection flow rate during injection molding of the injection mold corresponding to the current type of injection molded part, standard time difference from when the cavity of the injection mold corresponding to the current type of injection molded part starts to inject material to when the material reaches the second temperature monitoring point, standard temperature of the material from when the cavity of the injection mold corresponding to the current type of injection molded part starts to inject material to when the material reaches the second temperature monitoring point, standard injection volume of a single injection molded part from when the cavity of the injection mold corresponding to the current type of injection molded part starts to inject material to when the material reaches the second temperature monitoring point, standard injection pressure during injection molding of the current type of injection molded part, standard holding time during injection molding of the current type of injection molded part, and standard melting temperature of the material for preparing the current type of injection molded part; Step S102: performing M injection molding tests, the injection molding tests comprising: controlling the injection molding machine to perform injection molding according to the standard injection molding process parameters of the current type of injection molded part to form the current type of injection molded part, and controlling the second temperature sensor and the timer to operate, obtaining the actual time difference from when the cavity of the injection mold corresponding to the current type of injection molded part starts to inject the material to when the material reaches the second temperature monitoring point, and the actual temperature of the material from when the cavity of the injection mold corresponding to the current type of injection molded part starts to inject the material to when the material reaches the second temperature monitoring point; Step S103: based on the actual time difference from the start of material injection into the cavity of the injection mold corresponding to the current type of injection molded part to the arrival of the material at the second temperature monitoring point and the actual temperature of the material from the start of material injection into the cavity of the injection mold corresponding to the current type of injection molded part to the arrival of the material at the second temperature monitoring point obtained from the Nth to Mth injection molding tests in step S102, calculate the actual comprehensive injection flow evaluation result and the actual comprehensive injection temperature evaluation result, and calculate the actual comprehensive evaluation result based on the actual comprehensive injection flow evaluation result and the actual comprehensive injection temperature evaluation result; N is greater than or equal to 1 and less than M; Step S104: When Alarm when is the first preset comprehensive evaluation result; It is the actual comprehensive evaluation result.

7. The method for preparing an automotive cable seal according to claim 6, characterized in that: The actual comprehensive injection flow evaluation result, the actual comprehensive injection temperature evaluation result and the actual comprehensive evaluation result are calculated based on the following formula: ； ； is the injection flow evaluation result corresponding to the kth injection molding test; is the injection temperature evaluation result corresponding to the kth injection molding test; H is the total number of second temperature monitoring points of the injection mold corresponding to the current type of injection molded part; The standard injection volume of a single injection molded part from the time when the material is injected into the cavity of the injection mold corresponding to the current type of injection molded part until the material reaches the i-th second temperature monitoring point; The actual time difference from the start of material injection to the arrival of the material at the i-th second temperature monitoring point in the cavity of the injection mold corresponding to the current type of injection molded part obtained in the k-th injection molding test; The standard time difference from the start of material injection into the cavity of the injection mold corresponding to the current type of injection molded part to the time when the material reaches the i-th second temperature monitoring point; The standard injection flow rate when the injection mold corresponding to the current type of injection molded part is injected to form the current type of injection molded part; is obtained from the kth injection molding test The maximum value of is obtained from the kth injection molding test The minimum value of The actual temperature of the material from the time when the cavity of the injection mold corresponding to the current type of injection molded part starts to inject the material until the material reaches the i-th second temperature monitoring point obtained for the k-th injection molding test; The standard temperature of the material from the time when the material is injected into the cavity of the injection mold corresponding to the current type of injection molded part until the material reaches the i-th second temperature monitoring point; The maximum value of the actual temperature of the material from the start of material injection into the cavity of the injection mold corresponding to the current type of injection molded part obtained in the kth injection molding test to the material reaching all the second temperature monitoring points; The minimum value of the actual temperature of the material from the start of material injection into the cavity of the injection mold corresponding to the current type of injection molded part obtained in the kth injection molding test to the material reaching all the second temperature monitoring points; ； ； It is the actual comprehensive injection flow evaluation result; It is the actual comprehensive injection temperature evaluation result; ； is the injection flow evaluation weight; Evaluation weight for injection temperature.

8. The method for preparing an automotive cable seal according to claim 7, characterized in that: The monitoring module also includes a plurality of first temperature sensors and a timer. The first temperature sensor is used to detect the temperature of a first temperature monitoring point on the surface of the injection mold. During the M injection molding tests, the first temperature sensor is controlled to detect once each time the injection molding starts and is completed. Step S103 also obtains the reference temperature difference parameter of the current trial injection molding process, which is the average value of all mold temperature difference parameters obtained from the Nth to the Mth injection molding tests of the current trial injection molding process; the mold temperature difference parameter is: the difference between the surface temperature of the injection mold corresponding to the current type of injection molding when the previous injection molding is completed and the surface temperature of the injection mold corresponding to the current type of injection molding when the next injection molding starts; The trial injection molding process also includes: Step S105: , calculating the first basic injection flow rate based on step S103; is the second preset comprehensive evaluation result; ； P is the first basic injection flow rate; is the standard injection flow rate of the injection mold corresponding to the current type of injection molded part; e is a natural constant; is the logarithm to base 10; The flow rate adjustment weight corresponding to the injection flow rate; The flow rate adjustment weight corresponding to the injection temperature; After each trial injection molding process is completed, the formal injection molding process is carried out. Before each formal injection molding process, the current mold temperature difference state parameter and the target injection molding flow rate of the current formal injection molding are calculated based on the detection value of the first temperature sensor in the previous injection molding process. During the current formal injection molding process, the actual injection molding flow rate is controlled to be the target injection molding flow rate of the current formal injection molding; ； U is the current mold temperature difference state parameter, The average detection value of the first temperature sensor at the beginning of the current formal injection molding; The average detection value of the first temperature sensor when the injection molding before the current formal injection molding is completed; It is the reference temperature difference parameter of the most recent trial injection process before the current formal injection; ； The target injection flow rate for the current formal injection; is the natural logarithm, e is the natural constant; It is the standard time difference from the completion of the previous injection to the start of the next injection; The time difference between the completion of the previous injection and the start of the current formal injection; It is the first basic injection flow rate obtained from the most recent trial injection process before the current formal injection.

9. The method for preparing an automotive cable seal according to claim 5, characterized in that: The method further includes a step of selecting the size of the semi-annular seal (410), wherein the step of selecting the size of the semi-annular seal (410) includes: Step S201: obtaining the size information of the cable (6) to be sealed, as well as the size information of the semi-annular slider (46) and the material information of the semi-annular seal (410); Step S202: obtaining required clamping information of the cable (6) to be sealed, the required clamping information of the cable (6) to be sealed including: required sealing elastic force between the semi-annular seal (410) and the cable (6) to be sealed, and required pulling force for pulling the cable (6) to be sealed out from between the semi-annular seal (410); Step S203: Calculating a first target outer diameter of the semi-annular seal (410) based on the information obtained in step S201 and the required sealing elastic force between the semi-annular seal (410) and the cable (6) to be sealed; ； D is a first target outer diameter of the semi-annular seal (410); is the diameter of the cable (6) to be sealed; is the positive tolerance of the diameter of the cable (6) to be sealed; is the negative tolerance of the diameter of the cable (6) to be sealed; The positive tolerance of the radial distance between the outer wall of the cable (6) and the inner wall of the semi-annular slider (46) when the left and right semi-annular sliders (46) are fitted together; is the negative tolerance of the radial distance between the outer wall of the cable (6) and the inner wall of the semi-annular slider (46) when the left and right semi-annular sliders (46) are fitted together; E is the elastic modulus of the semi-annular seal (410); and F is the required sealing elastic force between the semi-annular seal (410) and the cable (6) to be sealed; is the Poisson's ratio of the semi-annular seal (410); is the unit area; Step S204: Calculating a second target outer diameter of the semi-annular seal (410) based on the first target outer diameter of the semi-annular seal (410) and the required pulling force for pulling the cable (6) to be sealed out from between the semi-annular seal (410); ； is a second target outer diameter of the semi-annular seal (410); The required pulling force for pulling the cable (6) to be sealed out from between the semi-annular sealing members (410); is the friction coefficient between the cable (6) to be sealed and the semi-annular seal (410); Y is the inner radius of the semi-annular slider (46); is the natural logarithm, e is the natural constant; Step S205: preparing a semi-annular seal (410) according to a second target outer diameter of the semi-annular seal (410); wherein the inner diameter of the semi-annular seal (410) is the same as the outer diameter of the cable (6) to be sealed.

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