Battery cell coating forming equipment for cable processing

By designing the overmolding equipment for cable processing, using extrusion rings to form spiral grooves and using support frames, water-cutting plates and cooling air ducts, the problems of insufficient connection stability of the cladding layer and complexity of the molding device are solved, and the tight connection and cleanliness of the cladding layer are achieved.

CN120183822AActive Publication Date: 2025-06-20HENAN HONGFENG CABLE CO LTD
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Patent Information

Application Number
CN202510389486.0
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2025-03-31
Publication Date
2025-06-20
Estimated Expiration
2045-03-31

AI Technical Summary

Technical Problem

The existing cable-core overmolding equipment for cable processing is insufficient in connection stability between multi-layer cladding layers, which is prone to problems of cladding separation and lateral and tensile slippage. At the same time, it is more complicated to set up groove molding devices.

Method used

A cable processing battery cell overmolding equipment is designed, using two-section extruded feed pipes and extrusion rings to form spiral grooves through the rotation of the extrusion rings to ensure the tight connection between the cladding layers; at the same time, through structures such as support frames, water-cutting plates and cooling air ducts, cooling and cleaning of the cladding layers can be achieved.

Benefits of technology

A tight connection between the cladding layers is achieved, slipping problems are avoided, and the stability and cleanliness of the cladding layer are ensured through cooling and cleaning measures.

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Abstract

The invention provides battery core coating forming equipment for cable processing, and relates to cable processing. The battery core coating forming equipment for cable processing comprises two sections of extruded feeding pipes, the ends, close to each other, of the feeding pipes are rotationally connected with extrusion rings, the extrusion rings inwards form a plurality of protrusions, the two limiting rings are fixedly connected through a connecting frame, and a gear ring is fixedly installed on the surface of the connecting frame. According to the battery cell coating forming equipment for cable processing, a battery cell penetrates through the first feeding pipe, a first coating layer is extruded in the feeding pipe and coats the outer surface of the battery cell, and is extruded at a port by utilizing a bulge, and the battery cell continuously keeps transverse movement, so that the bulge always keeps rotating under the action of a gear ring, and the battery cell is prevented from being damaged. Therefore, the protrusions can form continuous spiral grooves in the outer surface of the first wrapping layer, in the next feeding pipe, wrapping materials are supplied to cover the grooves and form new wrapping on the outer ring, and therefore it can be guaranteed that the two layers of wrapping materials are tightly connected and do not slide relatively.
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Description

Technical Field

[0001] The present invention relates to cable processing, and specifically to a core coating and forming device for cable processing. Background Art

[0002] A cable mainly consists of an external insulating coating layer and a core. During the cable processing, a core coating and forming device is required to coat the core. Generally, the melted coating material is extruded into the coating and forming chamber, and then the core is coated with the coating material.

[0003] The existing patent CN118692754B, a core coating and forming device for cable processing, includes a mounting base plate, and also includes a groove extrusion structure which is arranged at the top end of the mounting base plate and is used for pressing grooves on the surface of the first coating layer; a thickness adjustment structure is arranged at the top end of the mounting base plate and is used for adjusting the thickness of the coating layer; an air-cooling structure is arranged at the top end of the mounting base plate and is used for cooling the first coating layer; the groove extrusion structure includes a support plate, the support plate is fixedly connected to the top end of the mounting base plate, and a T-shaped sliding rod is fixedly connected to the side surface of the support plate.

[0004] This technical solution forms grooves on the surface of the first coating layer, and a clamping connection is formed between the first coating layer and the second coating layer, thereby improving the connection stability between multiple coating layers and avoiding the separation of the coating layers when different materials of coating layers are used in combination. However, this technical solution has two problems. The simple spaced grooves act between the two wrapping layers and are prone to lateral and tensile slippage. At the same time, it is relatively complex to set up a groove forming device at the wrapping layer. Summary of the Invention

[0005] In view of the deficiencies of the prior art, the present invention provides a core coating and forming device for cable processing, which solves the problems raised in the above background art.

[0006] To achieve the above objectives, the present invention is realized through the following technical solutions: A core coating and forming device for cable processing includes a feeding pipe with two-stage extrusion. One ends of the feeding pipes close to each other are rotatably connected with extrusion rings. The extrusion rings form a plurality of protrusions inward. A connecting frame is fixedly connected between two limiting rings. A toothed ring is fixedly installed on the surface of the connecting frame, and a power gear that drives the toothed ring to rotate is engaged with the toothed ring.

[0007] Preferably, the connecting frame includes end face rings at both end faces. The end face rings are fixedly connected with the extrusion rings. A plurality of support rods are fixedly connected between the two end face rings. The support rods are distributed annularly and are concentric with the feeding pipe; the toothed ring is fixedly installed on the outer surface of the support rods. Limiting rings are fixedly installed on both sides of the outer surface of the support rods. A support frame is arranged below the connecting frame, and a fixed ring that wraps around the outer surface of the limiting ring is fixedly installed inside the support frame.

[0008] Preferably, the support frame is in the shape of a water tank, and a water splashing plate is fixedly installed on the outer surface of the support rod, and the water splashing plate points to the center of the feed pipe.

[0009] Preferably, the water splashing plate is inclined with respect to the support rod, and a water storage groove is formed by the downward depression on the surface of the water splashing plate. A spray ring is fixedly installed on the outer ring of the support frame, and the spray ring is fixedly installed inside the support frame.

[0010] Preferably, at least two sets of telescopic sleeves are fixedly installed on each side of the end face rings away from each other. Connecting flanges are fixedly installed on the sides of the extrusion ring and the telescopic sleeves close to each other, and the two connecting flanges are fixedly connected.

[0011] Preferably, the feed pipe is provided with a feed port. The feed pipe is composed of two symmetrical upper and lower parts. A clamping ring is provided in the inner ring at the front end of the feed pipe. A clamping ring is fixedly installed on the outer ring of the extrusion ring, and the clamping ring is rotatably connected inside the clamping ring. An inclined transition part that fits with the inner wall of the feed pipe is provided on the side of the clamping ring away from the connecting frame.

[0012] Preferably, a cooling air duct is fixedly installed on the outer surface of the support frame. An air outlet pointing to the center of the feed pipe is provided on the inner wall of the cooling air duct. The cooling air duct is divided into multiple sections and is respectively located between the limit ring and the gear ring.

[0013] Preferably, return air cavities are provided on both sides of the cooling air duct inside the inner ring of the support frame. The return air cavities and the cooling air duct form a closed cavity. Return air holes are provided at one end of the return air cavity located inside the cooling air duct. A supply ring is sleeved on the outer surfaces of the return air cavity and the cooling air duct. A sliding ring is rotatably connected to the inner ring of the supply ring. A communicating pipe is connected and penetrated through the inner ring of the sliding ring. Connecting pipes are connected and penetrated through the circumferential surface of the supply ring.

[0014] Preferably, the pitch of the spiral groove formed by the extrusion of the extrusion ring is N, and the distance between the two extrusion rings is an integer multiple of N.

[0015] Compared with the prior art, the present invention has the following beneficial effects:

[0016] 1. For the core coating forming equipment for cable processing, the core passes through the first feed pipe. The first layer of wrapping layer is extruded in the feed pipe and wrapped on the outer surface of the core, and is extruded by the protrusion at the port. Since the core continuously moves horizontally, the protrusion always rotates under the action of the gear ring. Therefore, a continuous spiral groove is formed on the outer surface of the first layer of wrapping layer. In the next feed pipe, the supplied wrapping material covers the groove and forms a new wrapping on the outer ring, so as to ensure that the two layers of wrapping materials are tightly connected and will not undergo relative slippage.

[0017] 2. The core wrapping and forming equipment for cable processing has a support frame in the shape of a water tank. A water splashing plate is fixedly installed on the outer surface of the support rod, and the water splashing plate points to the center of the feeding pipe. Through this setting, the cooling water can be dispersed on the outer surface of the wrapping layer by the water splashing plate, so as to cool the wrapping layer. The surface of the water splashing plate is recessed downward to form a water storage groove. A spray ring is fixedly installed on the outer ring of the support frame, and the spray ring is fixedly installed inside the support frame. Through this setting, the first wrapping layer outside the core can be cooled by the cooling water.

[0018] 3. The core wrapping and forming equipment for cable processing has a cooling air duct fixedly installed on the outer surface of the support frame. An air outlet pointing to the center of the feeding pipe is opened on the inner wall of the cooling air duct. The air cooled by the refrigeration unit is pumped into the cooling air duct by a blower. The cooling air duct is divided into multiple sections and is respectively located between the limit ring and the gear ring. By adopting the air cooling method, the first wrapping layer can be kept clean all the time.

[0019] 4. The core wrapping and forming equipment for cable processing has at least two sets of telescopic sleeves fixedly installed on the sides of the end face rings away from each other. Connecting flanges are fixedly installed on the sides of the pressing rings and the telescopic sleeves close to each other, and the two connecting flanges are fixedly connected. Since the distance between the two pressing rings needs to be restricted, telescopic sleeves are set to finely adjust the distance between the two pressing rings.

[0020] 5. The core wrapping and forming equipment for cable processing has a connecting frame including end face rings at both ends. The end face rings are fixedly connected with the pressing rings. The two end face rings are fixedly connected by a plurality of support rods, and the support rods are distributed annularly and concentric with the feeding pipe. A gear ring is fixedly installed on the outer surface of the support rod, and limit rings are fixedly installed on both sides of the outer surface of the support rod. A support frame is arranged below the connecting frame, and a fixed ring wrapped on the outer surface of the limit ring is fixedly installed inside the support frame. Through this setting, the two pressing rings can rotate synchronously, and at the same time, space can be reserved for cooling. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a schematic structural diagram of the present invention;

[0022] Figure 2 It is a schematic diagram of the connecting frame of the present invention;

[0023] Figure 3 It is a schematic connection diagram of the support frame of the present invention;

[0024] Figure 4 It is a schematic connection diagram of the pressing ring of the present invention;

[0025] Figure 5 It is a schematic connection diagram of the feeding pipe of the present invention;

[0026] Figure 6 Schematic diagram of the connection of the water splashing plate of the present invention

[0027] Figure 7 Schematic diagram of the connection of the cooling air duct of the present invention

[0028] Figure 8 Schematic diagram of the connection of the return air chamber of the present invention

[0029] Figure 9 Schematic diagram of the formed end face of the cable of the present invention

[0030] In the figure: 1. Feeding pipe; 2. Extrusion ring; 4. Protrusion; 5. Connecting frame; 6. Gear ring; 7. Driving gear; 501. End face ring; 502. Limiting ring; 503. Fixed ring; 504. Water splashing plate; 505. Water storage groove; 506. Telescopic sleeve; 507. Connecting flange; 508. Support frame; 509. Spraying ring; 510. Support rod; 9. Feed inlet; 10. Clamping ring; 11. Clamping circle; 12. Transition part; 13. Cooling air duct; 14. Air outlet; 15. Return air chamber; 16. Return air hole; 17. Connecting pipe; 18. Supply ring; 19. Slip ring; 20. Connecting pipe. Specific embodiments

[0031] Next, the technical solutions in the embodiments of the present application will be clearly and completely described in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are only a part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present application.

[0032] It should be noted that all the directional indications in the embodiments of the present application are only used to explain the relative position relationship and movement conditions between components in a specific posture. If this specific posture changes, the directional indications will also change accordingly.

[0033] In the present application, unless otherwise clearly specified and limited, terms such as "connection" and "fixation" shall be understood in a broad sense. For example, "fixation" can be a fixed connection, a detachable connection, or integrated; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the communication inside two components or the interaction relationship between two components, unless otherwise clearly limited. For those of ordinary skill in the art, the specific meanings of the above terms in the present application can be understood according to specific situations.

[0034] In addition, in this application, descriptions such as "first" and "second" are only for descriptive purposes and should not be construed as indicating or implying their relative importance or implicitly specifying the quantity of the indicated technical features. Thus, features defined with "first" and "second" may explicitly or implicitly include at least one such feature. In addition, the technical solutions between various embodiments can be combined with each other, but it must be based on the ability of those of ordinary skill in the art to implement. When the combination of technical solutions results in contradictions 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 this application.

[0035] Embodiment 1, as Figures 1-6 shown, a core coating and forming device for cable processing includes two extrusion feeding pipes 1. One ends of the feeding pipes 1 close to each other are rotatably connected with extrusion rings 2. The extrusion rings 2 form a plurality of protrusions 4 inward. Between two limiting rings 502, they are fixedly connected through a connecting frame 5. A gear ring 6 is fixedly installed on the surface of the connecting frame 5, and a power gear 7 that meshes with the gear ring 6 to drive the rotation of the gear ring 6 is provided. Through the rotation of the extrusion rings 2, the core moves horizontally, and the wrapping material is extruded into a spiral groove by the protrusions 4. In the next feeding pipe 1, the wrapping material is supplied to cover the groove and form a new wrapping on the outer circle, so as to ensure that the two layers of wrapping materials are tightly connected and will not undergo relative slippage.

[0036] The connecting frame 5 includes end face rings 501 at both end faces. The end face rings 501 are fixedly connected with the extrusion rings 2. Between the two end face rings 501, they are fixedly connected through a plurality of support rods 510. The support rods 510 are annularly distributed, and the support rods 510 are concentric with the feeding pipes 1. The gear ring 6 is fixedly installed on the outer surface of the support rods 510. On both sides of the outer surface of the support rods 510, limiting rings 502 are fixedly installed. Below the connecting frame 5, there is a support frame 508. Inside the support frame 508, a fixed ring 503 that wraps around the outer surface of the limiting ring 502 is fixedly installed. Through such a setting, the two extrusion rings 2 can rotate synchronously, and at the same time, space is reserved for cooling.

[0037] The pitch of the spiral groove formed by the extrusion of the extrusion ring 2 is N, and the distance between the two extrusion rings 2 is an integer multiple of N. Through such a setting, it can be ensured that the extrusion rings 2 rotate synchronously, and the protrusions 4 can always be located in the spiral groove.

[0038] On both sides of the end face rings 501 away from each other, at least two sets of telescopic sleeves 506 are fixedly installed. The telescopic sleeves 506 are hydraulic type. The telescopic lengths of the telescopic sleeves 506 on the same side are adjusted simultaneously by the same adjustment end. On the sides of the extrusion rings 2 and the telescopic sleeves 506 close to each other, connecting flanges 507 are fixedly installed. The two connecting flanges 507 are fixedly connected. Since it is necessary to limit the distance between the two extrusion rings 2, the telescopic sleeves 506 are provided to finely adjust the distance between the two extrusion rings 2.

[0039] The support frame 508 is in the shape of a water tank. A jetting mechanism is arranged at the tail end of the support frame 508. Before entering the next feeding pipe 1, the water on the surface of the wrapping layer is dried by the jetting mechanism to keep it dry. A water splashing plate 504 is fixedly installed on the outer surface of the support rod 510. The water splashing plate 504 points to the center of the feeding pipe 1. Through such a setting, the cooling water can be dispersed on the outer surface of the wrapping layer by the water splashing plate 504, so that the wrapping layer can be cooled down.

[0040] The water splashing plate 504 is inclined with the support rod 510. The surface of the water splashing plate 504 is recessed downward to form a water storage groove 505. Through such a setting, it can be ensured that the water splashing plate 504 can temporarily store part of the cooling water and rotate above the battery core for splashing, so that the battery core can be evenly cooled. A spray ring 509 is fixedly installed on the outer ring of the support frame 508. The spray ring 509 is fixedly installed inside the support frame 508. Through such a setting, the cooling water sprayed by the spray ring 509 can be used to cool the first layer of wrapping layer outside the battery core.

[0041] The feeding pipe 1 is provided with a feeding port 9. The feeding port 9 is connected to an existing feeding unit. The feeding pipe 1 is composed of two symmetrical upper and lower parts. A clamping ring 10 is opened in the inner ring at the front end of the feeding pipe 1. A clamping ring 11 is fixedly installed on the outer ring of the extrusion ring 2. The clamping ring 11 is rotatably connected inside the clamping ring 10. Through such a setting, it can be ensured that the extrusion ring 2 can rotate relative to the feeding pipe 1. An inclined transition part 12 that fits the inner wall of the feeding pipe 1 is arranged on the side of the clamping ring 11 away from the connecting frame 5. By setting the transition part 12, it can be avoided that a protrusion is formed at the connection between the extrusion ring 2 and the feeding pipe 1, so as to form a feeding dead zone at the protrusion.

[0042] During use, the battery core passes through the first feeding pipe 1. The first layer of wrapping layer is extruded in the feeding pipe 1 and wrapped on the outer surface of the battery core, and is extruded by the protrusion 4 at the port. Since the battery core continuously moves horizontally, the protrusion 4 always rotates under the action of the gear ring 6. Therefore, the protrusion 4 will form continuous spiral grooves on the outer surface of the first layer of wrapping layer. When the first layer of wrapping layer passes through the support frame 508, the spray ring 509 will spray cooling water on it for cooling. At the same time, the rotating support frame 508 will use the water splashing plate 504 to deflect the water towards the first layer of wrapping layer, and when rotating to the highest point, the water in the water storage groove 505 will be dispersed from the top to the outer surface of the first layer of wrapping layer to cool the first layer of wrapping layer. The battery core moves horizontally into the second feeding pipe 1. The second layer of wrapping layer in the second feeding pipe 1 is extruded and wrapped in the spiral groove. Since the outlet of the second feeding pipe 1 is annular, the surface of the second layer of wrapping layer coming out of the second feeding pipe 1 is smooth. By filling the second layer of wrapping layer into the spiral groove to fit with the first layer of wrapping layer, it can be avoided that the two layers of wrapping layer slip due to rotation and stretching.

[0043] Example 2. Based on Example 1, as Figure 1 , 2 , 5, 7, and 8 show that a cooling air duct 13 is fixedly installed on the outer surface of the support frame 508. An air outlet 14 pointing to the center of the supply pipe 1 is provided on the inner wall of the cooling air duct 13. The air cooled by the refrigeration unit is pumped into the interior of the cooling air duct 13 by a blower. The cooling air duct 13 is divided into multiple sections and is respectively located between the limit ring 502 and the gear ring 6. By adopting the air-cooling method, it can ensure that the first layer of the wrapping layer always remains clean.

[0044] On both sides of the inner ring of the support frame 508 where the cooling air duct 13 is located, there are return air cavities 15. The return air cavities 15 and the cooling air duct 13 form a closed cavity. Although the temperature of the cooling gas decreases after contacting the first layer of the wrapping layer, there is still a temperature difference with the first layer of the wrapping layer. Therefore, by recycling the cold air, the production cost can be reduced. The end of the return air cavity 15 located inside the cooling air duct 13 is provided with a return air hole 16. By setting the return air hole 16 and the return air cavity 15, the blown cold air can be recycled and reused for cooling after secondary cooling. The return air cavity 15 is connected to an air extraction device to pump the cold air into the interior of the refrigeration unit. The outer surfaces of the return air cavity 15 and the cooling air duct 13 are sleeved with a supply ring 18. The inner ring of the supply ring 18 is rotatably connected to a slip ring 19. The inner ring of the slip ring 19 is connected and penetrated by a communication pipe 17. The circumferential surface of the supply ring 18 is connected and penetrated by a connecting pipe 20. Through such a setting, it can ensure that the device can maintain the connection of the pipeline while rotating.

[0045] During use, the battery cell passes through the first supply pipe 1. The first layer of the wrapping layer is extruded in the supply pipe 1 and wrapped on the outer surface of the battery cell, and is extruded by the protrusion 4 at the port. Since the battery cell continuously moves horizontally, the protrusion 4 always rotates under the action of the gear ring 6. Therefore, the protrusion 4 will form continuous spiral grooves on the outer surface of the first layer of the wrapping layer. When the first layer of the wrapping layer passes through the cooling air duct 13, the cooling air duct 13 blows out cold air to cool the first layer of the wrapping layer. The return air cavity 15 and the return air pipe recycle the cold air for secondary refrigeration and use it for re-cooling. The battery cell moves horizontally into the second supply pipe 1. The second supply pipe 1 extrudes and wraps the second layer of the wrapping layer in the spiral grooves. Since the outlet of the second supply pipe 1 is annular, the surface of the second layer of the wrapping layer coming out of the second supply pipe 1 is smooth. By filling the second layer of the wrapping layer into the spiral grooves and fitting it with the first layer of the wrapping layer, it can avoid the slippage of the two layers of the wrapping layer caused by rotation and stretching.

[0046] In the description of this specification, the descriptions referring to terms such as "one embodiment", "some embodiments", "examples", "specific examples", or "some examples" etc. mean that the specific features, structures, materials, or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of this application. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials, or characteristics described can be combined in a suitable manner in any one or more embodiments or examples. In addition, those skilled in the art can combine and combine the different embodiments or examples described in this specification.

[0047] In addition, the technical solutions between various embodiments can be combined with each other, but it must be based on the ability of those of ordinary skill in the art to implement. When the combination of technical solutions results in contradictions 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 this application.

[0048] Although the embodiments of the present invention have been shown and described, for those of ordinary skill in the art, it can be understood that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principles and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A core overmolding device for cable processing, comprising a two-stage extruded feed tube (1), characterized in that: The ends of the feed pipes (1) that are close to each other are both rotatably connected to an extrusion ring (2), and a plurality of protrusions (4) are formed inwardly on the extrusion ring (2). The two limit rings (502) are fixedly connected via a connecting frame (5), and a gear ring (6) is fixedly mounted on the surface of the connecting frame (5), and the gear ring (6) is meshed with a power gear (7) that drives the gear ring (6) to rotate.

2. The electric core overmolding equipment for cable processing according to claim 1 is characterized in that: The connecting frame (5) comprises two end face rings (501), the end face rings (501) are fixedly connected to the extrusion ring (2), and the two end face rings (501) are fixedly connected via a plurality of support rods (510), the support rods (510) are distributed in an annular shape, and the support rods (510) are concentric with the feed pipe (1); the gear ring (6) is fixedly mounted on the outer surface of the support rod (510), and limiting rings (502) are fixedly mounted on both sides of the outer surface of the support rod (510); a supporting frame (508) is arranged below the connecting frame (5), and a fixing ring (503) wrapped around the outer surface of the limiting ring (502) is fixedly mounted inside the supporting frame (508).

3. The electric core overmolding equipment for cable processing according to claim 2, characterized in that: The support frame (508) is trough-shaped, and a water splashing plate (504) is fixedly mounted on the outer surface of the support rod (510), and the water splashing plate (504) points to the center of the feed pipe (1).

4. The electric core overmolding equipment for cable processing according to claim 3 is characterized in that: The water-splashing plate (504) and the support rod (510) are arranged obliquely, the surface of the water-splashing plate (504) is recessed downward to form a water storage groove (505), and a spray ring (509) is fixedly mounted on the outer ring of the support frame (508), and the spray ring (509) is fixedly mounted inside the support frame (508).

5. A cable core overmolding device according to any one of claims 2 to 4, characterized in that: At least two sets of telescopic sleeves (506) are fixedly installed on the side of the end face ring (501) that is away from each other, and a connecting flange (507) is fixedly installed on the side of the extrusion ring (2) and the telescopic sleeve (506) that is close to each other, and the two connecting flanges (507) are fixedly connected.

6. The electric core overmolding equipment for cable processing according to claim 5, characterized in that: The feed pipe (1) is provided with a feed port (9). The feed pipe (1) is composed of two symmetrical upper and lower parts. A clamping ring (10) is provided on the inner ring of the front end of the feed pipe (1). A clamping ring (11) is fixedly installed on the outer ring of the extrusion ring (2). The clamping ring (11) is rotatably connected to the inside of the clamping ring (10). A transition part (12) that is inclined and fits the inner wall of the feed pipe (1) is provided on the side of the clamping ring (11) away from the connecting frame (5).

7. The electric core overmolding equipment for cable processing according to claim 2, characterized in that: A cooling air duct (13) is fixedly mounted on the outer surface of the support frame (508); an air outlet (14) pointing toward the center of the feed pipe (1) is opened on the inner wall of the cooling air duct (13); the cooling air duct (13) is divided into multiple sections and is respectively located between the limit ring (502) and the gear ring (6).

8. The electric core overmolding equipment for cable processing according to claim 7, characterized in that: The inner ring of the support frame (508) is provided with a return air chamber (15) on both sides of the cooling air duct (13), and the return air chamber (15) and the cooling air duct (13) form a closed cavity. The return air chamber (15) is located at one end of the inner side of the cooling air duct (13) and is provided with a return air hole (16). The outer surfaces of the return air chamber (15) and the cooling air duct (13) are sleeved with a supply ring (18), and the inner ring of the supply ring (18) is rotatably connected to a slip ring (19), and the inner ring of the slip ring (19) is connected and penetrated by a connecting pipe (17), and the circumferential surface of the supply ring (18) is connected and penetrated by a connecting pipe (20).

9. The electric core overmolding equipment for cable processing according to claim 6 or 8, characterized in that: The pitch of the spiral groove formed by extrusion of the extrusion ring (2) is N, and the distance between the two extrusion rings (2) is an integer multiple of N.

Citation Information

Patent Citations

  • Battery cell coating forming equipment for cable processing

    CN118692754A

  • Electric Cable Comprising a Foamed Polyolefine Insulation and Manufacturing Process Thereof

    US20090145627A1