Disclosure of Invention
The invention aims to provide a novel cable extrusion molding production system, a cable core is primarily wrapped with plastic in a first die head and is input into a shaping mechanism, a plastic insulating layer on the outer side of the cable core is subjected to rolling compaction treatment through a rotating rolling assembly after the primarily wrapped cable enters the shaping mechanism, the firmness and the firmness of the plastic insulating layer on the outer ring of the cable core are enhanced through the compaction treatment, the safety of the inner cable core is better protected, meanwhile, the cable subjected to the rolling treatment enters a second die head for secondary plastic wrapping, the appearance of the cable is smoother through the secondary plastic wrapping, the performance of the cable is more stable under a high-pressure environment through the treatment, and the problem of quality defects frequently occurring on the outer ring of the existing cable is solved.
Aiming at the technical problems, the technical scheme adopted by the invention is as follows:
the utility model provides a novel cable extrusion molding production system, includes No. one the extruding machine, be linked together with an extruding machine a die head, No. two extruding machines and No. two die heads that are linked together with No. two extruding machines, the delivery side fixedly connected with setting mechanism of a die head, setting mechanism include roll-in subassembly and with roll-in subassembly fixed connection's drive assembly, the below of a die head still be provided with drive assembly matched with drive assembly, drive assembly is used for driving drive assembly and drives roll-in subassembly in step and rotates, the roll-in subassembly carries out the roll-in compaction through the cable surface of pivoted mode to a die head output and handles.
Preferably, the shaping mechanism comprises a shaping die head fixedly connected with the output end of the first die head, and a plastic outlet channel is further arranged in the shaping die head.
Preferably, the rolling assembly comprises a plurality of rolling cylinders rotatably arranged in the shaping die head, and the inner ends and the outer ends of the rolling cylinders are respectively provided with a circular slide block and a rolling head.
Preferably, the round sliding blocks are rotatably arranged on the rolling barrel, the number of the round sliding blocks is not less than two, and sliding grooves matched with the round sliding blocks are formed in the shaping die head.
Preferably, the connecting end surface of the rolling head and the rolling cylinder is arc-shaped.
Preferably, the transmission assembly comprises a connecting rod fixedly arranged on the outer side surface of the roller head, one end of the connecting rod is fixedly connected with a transmission gear, and a through hole is formed in the center of the transmission gear.
Preferably, the driving assembly comprises a rotating motor and a rotating shaft driven by the rotating motor, one end of the rotating shaft is fixedly connected with a driving gear meshed with the transmission gear, and a plurality of fixed rotating limiting seats are further arranged on the rotating shaft.
Preferably, a first injection molding channel and a second injection molding channel are respectively arranged in the first die head and the second die head, and the output end caliber of the second injection molding channel is larger than that of the first injection molding channel.
Preferably, a wire core conveying opening formed in the first die head is further formed in one side of the first injection molding channel, a cable conveying opening formed in the second die head is further formed in one side of the second injection molding channel, and the diameter of the cable conveying opening is the same as that of the output end of the first injection molding channel.
The invention has the beneficial effects that:
1. according to the invention, the driving assembly is arranged to drive the transmission assembly to synchronously rotate, the transmission assembly drives the rolling assembly to circularly rotate in the first die head, the cable which is just fused with the plastic in the first die head is compacted by the rolling assembly in a rotating manner, so that the plastic outside the wire core is firmer and firmer, the safety of the middle wire core is more effectively protected, and then the second die head is used for wrapping the outer side of the cable with a layer of plastic again to form two layers of plastic wrapping with an outer layer and an inner layer, so that the service life of the cable is greatly prolonged.
2. The pair of circular sliding blocks are arranged at the inner end of the rolling cylinder, and in the process that the rolling cylinder synchronously rotates along with the transmission gear, the circular sliding blocks rotate in the sliding groove of the first die head in a limiting mode, and the circular sliding blocks are rotatably arranged on the rolling cylinder, so that the friction force generated when the rolling cylinder rotates in the sliding groove can be reduced, and the long-time stable rolling rotation of the rolling cylinder can be guaranteed.
3. The connecting end face of the rolling head and the rolling cylinder is arranged in an arc shape, and before the cable core and the plastic are preliminarily fused and wrapped to be close to the rolling head for rolling compaction, the arrangement of the arc end face can ensure that the preliminarily fused cable is close to the rolling head at a moderate angle and is matched with the rolling head for rolling compaction, so that the surface of the cable is protected from damaging a plastic layer due to an overlarge angle.
To sum up, this novel cable extrusion molding production system has design benefit, and simple structure uses advantages such as high-efficient stability, is particularly useful for cable extrusion molding preparation technical field.
Detailed Description
The technical scheme in the embodiment of the invention is clearly and completely explained by combining the attached drawings.
Example one
As shown in fig. 1 to 9, a novel cable extrusion production system includes a first extruding machine 1, a first die head 2 and a second extruding machine 3 communicated with the first extruding machine 1, and a second die head 4 communicated with the second extruding machine 3, wherein the output end side of the first die head 2 is fixedly connected with a shaping mechanism 5, the shaping mechanism 5 includes a rolling component 51 and a transmission component 52 fixedly connected with the rolling component 51, a driving component 6 matched with the transmission component 52 is further arranged below the first die head 2, the driving component 6 is used for driving the transmission component 52 and synchronously driving the rolling component 51 to rotate, and the rolling component 51 performs rolling compaction processing on the outer surface of a cable output by the first die head 2 in a rotating manner.
The wire core enters the first die head 2 and is wrapped and fused with the plastic extruded by the first plastic extruding machine 1, then the cable after primary wrapping is output from the first die head 2 and passes through the shaping mechanism 5, the state of the cable when just entering the shaping mechanism 5 is shown in figure 8, the transmission component 52 in the shaping mechanism 5 is driven by the synchronous drive of the driving component 6 to drive the rolling component 51 fixedly connected with the transmission component to carry out circumferential rotation, the cable passes through the rolling head 513 in the rolling component 51 to carry out whole-circle rolling compaction on the plastic of which the outer surface is in the shaping stage, the state of the outer circle of the cable is shown in figure 9, so that the cable is contacted with the wire core more firmly and firmly, then the rolled cable enters the second die head 4 again, the outer circle of the cable is wrapped and reinforced by the plastic extruded by the second plastic extruding machine 3, and the whole cable is respectively provided with an inner layer and an outer layer, and the inner layer has better protectiveness after being rolled and compacted, and the appearance smoothness and stability of the whole cable after being wrapped by the outer layer are improved again, so that the service life of the cable is prolonged, and the quality defects of high-voltage detection of a hu, exposed cable cores, plastic damage and the like are reduced.
The driving assembly 6 drives the transmission assembly 52 to synchronously rotate, the transmission assembly 52 drives the rolling assembly 51 to circularly rotate in the first die head 2, the cable which is just fused with the plastic in the first die head 2 is compacted by the rolling assembly 51 in a rotating manner, so that the plastic outside the wire core is firmer and firmer, the safety of the middle wire core is protected more effectively, and then the second die head 4 wraps the outer side of the cable with a layer of plastic again to form two layers of plastic wraps, namely an outer layer and an inner layer, so that the service life of the cable is greatly prolonged.
Referring to fig. 2 and fig. 3, specifically, the shaping mechanism 5 includes a shaping die head 53 fixedly connected to the output end of the first die head 2, a plastic outlet channel 531 is further disposed in the shaping die head 53, the caliber of the plastic outlet channel 531 decreases from large to small on the path through which the cable passes, and the cable is rolled by the rolling assembly 51 in a matching manner.
Referring to fig. 2 and fig. 3, in particular, the rolling assembly 51 includes a plurality of rolling cylinders 511 rotatably disposed in the shaping die 53, the inner ends and the outer ends of the rolling cylinders 511 are respectively provided with a circular slider 512 and a rolling head 513, the circular slider 512 is used for assisting the rotation of the rolling cylinders 511 in the shaping die 53, and the rolling head 513 is used for rolling and compacting the preliminarily fused cable outer ring plastic.
Referring to fig. 2, specifically, the circular sliding blocks 512 are rotatably disposed on the rolling cylinder 511, the number of the circular sliding blocks is not less than two, the forming die head 53 is provided with a sliding groove 532 matched with the circular sliding blocks 512, the circular sliding blocks 512 are rotatably disposed in the sliding groove 532, and lubricating grease is coated between the sliding groove 532 and the sliding groove, friction force of the circular sliding blocks 512 is smaller when the circular sliding blocks 512 rotate in the sliding groove 532, the number of the circular sliding blocks 512 is not less than two, the plurality of the circular sliding blocks 512 are rotatably disposed in the sliding groove 532, so that rotational stability of the rolling cylinder 511 is ensured, and uniformity of plastic wall thickness is ensured when cables are rolled and compacted.
Referring to fig. 3, specifically, the connection end surface of the rolling head 513 and the rolling cylinder 511 is in an arc shape, and the included angle between the rolling head 513 and the rolling cylinder 511 in the horizontal direction is 5 degrees to 10 degrees, within which the rolling head 513 can roll and compact the outer ring plastic layer of the preliminarily fused cable.
It should be noted that the connecting end surface of the rolling head 513 and the rolling cylinder 511 is arranged in an arc shape, and before the cable core and the plastic are preliminarily fused and wrapped to be close to the rolling head for rolling compaction, the arrangement of the arc end surface can ensure that the preliminarily fused cable is close to the rolling head at a moderate angle and is matched with the rolling head for rolling compaction, so that the surface of the cable is protected from damaging the plastic layer due to an overlarge angle.
Referring to fig. 3 and 4, specifically, the transmission assembly 52 includes a connecting rod 521 fixedly disposed on an outer side surface of the rolling head 513, one end of the connecting rod 521 is fixedly connected with a transmission gear 522, a through hole 523 is formed in a center of the transmission gear 522, the transmission gear 522 is fixedly connected with the rolling head 513 through the connecting rod 521, and the transmission gear 522 rotates to drive the rolling head 513 and the rolling cylinder 511 to rotate circumferentially along the sliding groove 532 to roll and compact the cable.
It should be noted that the pair of circular sliding blocks 512 are arranged at the inner end of the rolling cylinder 511, in the process that the rolling cylinder 511 synchronously rotates along with the transmission gear 522, the circular sliding blocks 512 rotate in the sliding groove 532 of the first die head 2 in a limiting manner, and the circular sliding blocks 512 are rotatably arranged on the rolling cylinder 511, so that the friction force generated when the rolling cylinder 511 rotates in the sliding groove 532 is reduced, and the long-term stable rolling rotation of the rolling cylinder 511 is ensured.
Referring to fig. 5, specifically, the driving assembly 6 includes a rotating motor 61 and a rotating shaft 62 driven by the rotating motor 61, a driving gear 63 engaged with the transmission gear 522 is fixedly connected to one end of the rotating shaft 62, a plurality of fixed rotation limiting seats 64 are further disposed on the rotating shaft 62, the rotating motor 61 drives the driving gear 63 fixedly connected to the rotating shaft 62 to rotate through the rotating shaft 62, the driving gear 63 drives the transmission gear 522 engaged with the driving gear to rotate, and grease is applied between the driving gear 63 and the transmission gear 522 to reduce friction force between the two gears during rotation.
Example two
As shown in fig. 6 to 7, in which the same or corresponding components as those in the first embodiment are denoted by the same reference numerals as those in the first embodiment, only the points of difference from the first embodiment will be described below for the sake of convenience; the second embodiment is different from the first embodiment in that:
referring to fig. 6 and 7, specifically, a moulding plastics passageway 21 and No. two passageways 41 of moulding plastics have been seted up in a die head 2 and No. two die heads 4 respectively, the output bore diameter of No. two passageways 41 of moulding plastics is greater than the output bore diameter of a passageway 21 of moulding plastics, a passageway 21 of moulding plastics is used for carrying out preliminary plastic parcel to the sinle silk, No. two passageway 41 of moulding plastics are used for carrying out the outer lane parcel of one deck again to the cable that fuses the parcel tentatively, make it firm more stable, and service life is prolonged.
Referring to fig. 6 and 7, specifically, a wire core conveying port 22 provided in the first die head 2 is further provided at one side of the first injection channel 21, a cable conveying port 42 provided in the second die head 4 is further provided at one side of the second injection channel 41, and the diameter of the cable conveying port 42 is the same as that of the output end of the first injection channel 21.
In the description of the present invention, it is to be understood that the terms "front-back", "left-right", and the like indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience in describing the present invention and simplifying the description, but do not indicate or imply that the referred device or component must have a specific orientation, be constructed in a specific orientation, and be operated, and thus should not be construed as limiting the invention.
Of course, in this disclosure, those skilled in the art will understand that the terms "a" and "an" should be interpreted as "at least one" or "one or more," i.e., in one embodiment, a number of an element may be one, and in another embodiment, a number of the element may be plural, and the terms "a" and "an" should not be interpreted as limiting the number.
The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any changes or substitutions that can be easily made by those skilled in the art in light of the technical teaching of the present invention should be included within the scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.