A modular quick-change mold core and mold sleeve and use method thereof

Abstract

The invention discloses a modular quick-change mold core mold sleeve and a use method thereof, which belongs to the technical field of plastic pipe production. The invention can replace the traditional mold core mold sleeve with two sets of combined mold core mold sleeves, namely a specially made main core sleeve assembly and a secondary core sleeve assembly. When the mold core mold sleeve needs to be replaced, it is only necessary to connect and fix the secondary core sleeve assembly to the main core sleeve assembly without disassembling the main core sleeve assembly. The main core sleeve assembly and the secondary core sleeve assembly are threadedly connected and fixed through a passive connecting ring, an active connecting block and a threaded groove. The connection is convenient and fast, which can greatly reduce the time for replacing the mold core mold sleeve, thereby significantly improving production efficiency. A disassembly and assembly auxiliary device is specially provided for use with the device. The device is simple to operate and easy to use, which greatly facilitates the connection and disassembly between the main core sleeve assembly and the secondary core sleeve assembly, thereby further reducing the time for replacing the mold core mold sleeve and improving production efficiency.

Description

Technical Field

[0001] The invention relates to the technical field of plastic pipe production, and more particularly to a modular quick-change mold core and mold sleeve and a use method thereof. Background Art

[0002] Plastic pipes are generally made of synthetic resin, that is, polyester, with stabilizers, lubricants, plasticizers, etc. added, and are extruded in a pipe making machine by the "plastic" method. They are mainly used as pipes for tap water supply systems in buildings, drainage, exhaust and sewage sanitary pipes, underground drainage pipe systems, rainwater pipes, and threading pipes for wire installation. Plastic pipes are divided into two categories: thermoplastic plastic pipes and thermosetting plastic pipes. Thermoplastic ones include polyvinyl chloride pipes, polyethylene pipes, polypropylene pipes, polyoxymethylene pipes, etc.; thermosetting ones include phenol plastic pipes, etc.

[0003] In the production process of plastic pipes, mold cores and mold sleeves are required for extrusion molding. However, the mold cores and mold sleeves used in the prior art can only be used for production of pipe sections with a specification difference of less than 2 mm. If the difference is too large, the mold cores and mold sleeves need to be replaced. The replacement of the mold cores and mold sleeves takes about 90 minutes, which will seriously affect the production progress and greatly reduce the production efficiency. Summary of the invention

[0004] 1. Technical issues to be solved

[0005] In view of the problems existing in the prior art, the purpose of the present invention is to provide a modular quick-change core mold sleeve and a method of using the same, which can replace the traditional core mold sleeve with two sets of combined core mold sleeves, namely a specially made main core sleeve assembly and a secondary core sleeve assembly. When the core mold sleeve needs to be replaced, it is only necessary to connect and fix the secondary core sleeve assembly to the main core sleeve assembly without disassembling the main core sleeve assembly. The main core sleeve assembly and the secondary core sleeve assembly are threadedly connected and fixed via a passive connecting ring, an active connecting block and a threaded groove, which is convenient and quick to connect, and can greatly reduce the time for replacing the core mold sleeve, thereby significantly improving production efficiency. A disassembly and assembly auxiliary device is specially provided for use in conjunction with the same, which is simple to operate and easy to use, and greatly facilitates the connection and disassembly between the main core sleeve assembly and the secondary core sleeve assembly, thereby further reducing the time for replacing the core mold sleeve and improving production efficiency.

[0006] Technical Solution

[0007] To solve the above problems, the present invention adopts the following technical solutions.

[0008] A modular quick-change mold core mold sleeve, comprising a main core sleeve assembly and a secondary core sleeve assembly, the main core sleeve assembly comprising a main mold core, the outer wall of the main mold core is sleeved with a main mold sleeve matching the main mold core, a passive connecting ring is fixedly connected to the outer wall of one end of the main mold sleeve, the secondary core sleeve assembly comprises a secondary mold core, the outer wall of the secondary mold core is sleeved with a secondary mold sleeve matching the main mold core, one end of the secondary mold core is fixedly connected with a positioning block, the outer wall of one end of the secondary mold sleeve is fixedly connected with an active connecting block, one end of the active connecting block is provided with a threaded groove matching the passive connecting ring, the upper and lower outer walls of the active connecting block are fixedly connected with disassembly blocks, one side of the disassembly block is fixedly connected with a reinforcing plug rod, and the upper and lower outer walls of the secondary mold sleeve are fixedly connected with slide rails.

[0009] Furthermore, the other end of the main mold core is fixedly connected to an equipment connector for connecting to production equipment. The size of the main mold core is the same as that of a standard mold core used to produce pipe segments with an outer diameter of 12mm to 16mm. The main core sleeve assembly can be used independently. By connecting the main core sleeve assembly to the production equipment through the equipment connector, pipe segments with an outer diameter of 12mm to 16mm can be produced through the main mold core and the main mold sleeve.

[0010] Furthermore, the size of the secondary mold core is the same as that of a standard mold core used to produce pipe segments with an outer diameter of 5mm to 10mm. The secondary core sleeve assembly is used in conjunction with the main core sleeve assembly. After the secondary core sleeve assembly is connected to the main core sleeve assembly, the secondary mold core and the secondary mold sleeve can be used to produce pipe segments with an outer diameter of 5mm to 10mm without disassembling the mold core and the mold sleeve.

[0011] Furthermore, a through hole matching the secondary mold core is opened in the middle of the positioning block, and a positioning groove matching the positioning block is opened in the middle of one end of the main mold core. The positioning groove and the positioning block can provide a positioning effect, which can prevent the main core sleeve assembly and the secondary core sleeve assembly from being misaligned when connected, and facilitate the connection of the main core sleeve assembly and the secondary core sleeve assembly.

[0012] Furthermore, an external thread is provided on the outer wall of the passive connecting ring, and an internal thread matching the external thread is provided on the inner wall of the thread groove. The main core sleeve assembly and the auxiliary core sleeve assembly are threadedly connected and fixed via the passive connecting ring, the active connecting block and the thread groove. The connection is convenient and quick, which can greatly reduce the time for replacing the mold core and mold sleeve, thereby significantly improving production efficiency.

[0013] A method for using a modular quick-change mold core and mold sleeve comprises the following steps:

[0014] S1. Install the main core sleeve assembly on the production equipment, and then directly produce pipe sections with an outer diameter of 12mm to 16mm through the main mold core and main mold sleeve;

[0015] S2. When it is necessary to produce a pipe section with an outer diameter of 5 mm to 10 mm, the auxiliary core sleeve assembly is connected and fixed to the main core sleeve assembly by the disassembly and assembly auxiliary device, so that the pipe section with an outer diameter of 5 mm to 10 mm can be produced;

[0016] S3. When it is necessary to produce a pipe section with an outer diameter of 12mm to 16mm again, it is only necessary to remove the secondary core sleeve assembly through the disassembly and assembly auxiliary device.

[0017] Furthermore, the disassembly and assembly auxiliary device includes a disassembly and assembly connecting ring that matches the active connecting block, one end of the disassembly and assembly connecting ring is provided with two symmetrically arranged card slots that match the disassembly and assembly card block, the inner side of the card slot is provided with a slot that matches the reinforcement plug rod, the other end of the disassembly and assembly connecting ring is fixedly connected to a support plate, the middle part of the support plate away from the side of the disassembly and assembly connecting ring is fixedly connected to a connecting column, one end of the connecting column is fixedly connected to a handle rod, through the disassembly and assembly connecting ring, the card slot, the slot, the support plate, the connecting column, the disassembly and assembly card block, and the reinforcement plug rod. When in use, The staff will put the disassembly and assembly connecting ring on the outside of the auxiliary mold sleeve, insert the reinforcement rod into the slot, insert the disassembly and assembly block into the slot, and then align the positioning block with the positioning slot, and then rotate the disassembly and assembly connecting ring through the handle rod to drive the active connecting block and the passive connecting ring to be threadedly connected, and then connect and fix the auxiliary core sleeve assembly to the main core sleeve assembly. Similarly, the auxiliary core sleeve assembly can also be removed from the main core sleeve assembly. The operation is simple and easy to use, which greatly facilitates the connection and disassembly between the main core sleeve assembly and the auxiliary core sleeve assembly, thereby further reducing the time for replacing the core and sleeve, and improving production efficiency.

[0018] Furthermore, two symmetrically arranged sliders are fixedly connected to the inner wall of the slot, wherein a top end of one of the sliders is provided with a slide groove matching the slide rail, and a bottom end of the other slider is provided with a slide groove matching the slide rail. When installing the secondary core sleeve assembly, the slider is connected to the slide rail through the slide groove, which can further strengthen the connection between the disassembly connection ring and the active connection block, thereby preventing the disassembly block and the reinforcement rod from breaking, thereby improving stability.

[0019] Furthermore, a built-in groove is provided inside the connecting column, a push-and-separate rod is slidably connected inside the built-in groove, a stopper is fixedly connected to the outer wall of the push-and-separate rod, one side of the stopper is fixedly connected to a return spring, the other end of the return spring is fixedly connected to the inner wall of the built-in groove, one end of the push-and-separate rod passes through the support plate and is fixedly connected to a vertical rod, and the other end of the push-and-separate rod passes through the handle rod and extends to the outside of the handle rod.

[0020] Furthermore, the push-and-leave rod is slidably connected to the support plate, the connecting column and the handle rod, and the length of the vertical rod is greater than the outer diameter of the secondary mold sleeve. Through the built-in groove, the push-and-leave rod, the block, the return spring and the vertical rod, after the secondary core sleeve assembly is removed from the main core sleeve assembly, the push-and-leave rod can be pushed to move the vertical rod toward the disassembly and assembly connecting ring, thereby driving the vertical rod to push the secondary mold sleeve, so that the secondary core sleeve assembly is separated from the disassembly and assembly auxiliary device. The temperature of the mold core and the mold sleeve that have just finished production is relatively high. Through the above settings, the staff can be prevented from contacting the secondary mold core and the secondary mold sleeve, thereby preventing the staff from being scalded and improving the safety performance. Beneficial Effects

[0021] Compared with the prior art, the advantages of the present invention are:

[0022] This solution replaces the traditional core mold sleeve with two sets of combined core mold sleeves, namely a specially made main core sleeve assembly and a secondary core sleeve assembly. When the core mold sleeve needs to be replaced, it is only necessary to connect and fix the secondary core sleeve assembly to the main core sleeve assembly without disassembling the main core sleeve assembly. The main core sleeve assembly and the secondary core sleeve assembly are threadedly connected and fixed via a passive connecting ring, an active connecting block and a threaded groove. The connection is convenient and quick, which can greatly reduce the time for replacing the core mold sleeve, thereby significantly improving production efficiency. A disassembly and assembly auxiliary device is specially provided for use in conjunction with the device. The device is simple to operate and easy to use, which greatly facilitates the connection and disassembly between the main core sleeve assembly and the secondary core sleeve assembly, thereby further reducing the time for replacing the core mold sleeve and improving production efficiency.

[0023] The other end of the main mold core is fixedly connected with an equipment connector for connecting to the production equipment. The size of the main mold core is the same as the standard mold core used to produce pipe sections with an outer diameter of 12mm to 16mm. The main core sleeve assembly can be used independently. The main core sleeve assembly is connected to the production equipment through the equipment connector, and the main mold core and the main mold sleeve can be used to produce pipe sections with an outer diameter of 12mm to 16mm.

[0024] The size of the secondary mold core is the same as the standard mold core used to produce pipe sections with an outer diameter of 5mm to 10mm. The secondary core sleeve assembly is used in conjunction with the main core sleeve assembly. After the secondary core sleeve assembly is connected to the main core sleeve assembly, the secondary mold core and the secondary mold sleeve can be used to produce pipe sections with an outer diameter of 5mm to 10mm without disassembling the mold core and the mold sleeve.

[0025] The positioning groove and the positioning block can provide a positioning effect, thereby preventing the main core sleeve assembly and the auxiliary core sleeve assembly from being misaligned when being connected, thereby facilitating the connection of the main core sleeve assembly and the auxiliary core sleeve assembly.

[0026] The main core sleeve assembly and the auxiliary core sleeve assembly are threadedly connected and fixed through a passive connecting ring, an active connecting block, and a thread groove. The connection is convenient and quick, which can greatly reduce the time for replacing the mold core and mold sleeve, thereby significantly improving production efficiency.

[0027] Through the setting of the disassembly and assembly connecting ring, the card slot, the slot, the support plate, the connecting column, the disassembly and assembly block, and the reinforcement plug rod, when in use, the staff will put the disassembly and assembly connecting ring on the outside of the auxiliary mold sleeve, and insert the reinforcement plug rod into the slot, and then align the positioning block with the positioning slot, and then rotate the disassembly and assembly connecting ring through the handle rod, which can drive the active connecting block and the passive connecting ring to be threadedly connected, and then connect and fix the auxiliary core sleeve assembly to the main core sleeve assembly. Similarly, the auxiliary core sleeve assembly can also be removed from the main core sleeve assembly. The operation is simple and easy to use, which greatly facilitates the connection and disassembly between the main core sleeve assembly and the auxiliary core sleeve assembly, thereby further reducing the time for replacing the core and sleeve, and improving production efficiency.

[0028] When installing the secondary core sleeve assembly, the slider is connected to the slide rail through the slide groove, which can further strengthen the connection between the disassembly connection ring and the active connection block, thereby preventing the disassembly block and the reinforcement rod from breaking, thereby improving stability.

[0029] Through the built-in groove, push-and-pull rod, block, reset spring and vertical rod, after the auxiliary core sleeve assembly is removed from the main core sleeve assembly, the push-and-pull rod can be pushed to move the vertical rod toward the disassembly and assembly connecting ring, thereby driving the vertical rod to push the auxiliary mold sleeve, so that the auxiliary core sleeve assembly is separated from the disassembly and assembly auxiliary device. The temperature of the mold core and mold sleeve that have just finished production is relatively high. Through the above settings, the staff can be prevented from contacting the auxiliary mold core and auxiliary mold sleeve, thereby preventing the staff from being scalded and improving the safety performance. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] Figure 1 It is a structural schematic diagram of the main core sleeve assembly and the auxiliary core sleeve assembly of the present invention;

[0031] Figure 2 It is a cross-sectional view of the main mold sleeve and the inner mold sleeve of the present invention;

[0032] Figure 3 It is a cross-sectional view of the passive connection ring and the active connection block of the present invention;

[0033] Figure 4 It is a structural schematic diagram of the disassembly and assembly auxiliary device of the present invention;

[0034] Figure 5 It is a side view of the disassembly and assembly of the connecting ring of the present invention;

[0035] Figure 6 It is a cross-sectional view of the disassembly and assembly of the connecting ring of the present invention;

[0036] Figure 7 It is a cross-sectional view inside the connecting column of the present invention;

[0037] Figure 8 The figure is a schematic diagram of a working state when installing the auxiliary core sleeve assembly of the present invention.

[0038] Description of the numbers in the figure:

[0039] 101. Main mold core; 102. Main mold sleeve; 103. Positioning groove; 104. Passive connecting ring; 201. Secondary mold core; 202. Secondary mold sleeve; 203. Positioning block; 204. Through hole; 205. Active connecting block; 206. Threaded groove; 207. Disassembly and assembly block; 208. Reinforcement plug rod; 209. Slide rail; 301. Disassembly and assembly connecting ring; 302. Slot; 303. Slot; 304. Slider; 305. Slide groove; 306. Support plate; 307. Connecting column; 308. Handle rod; 309. Built-in groove; 310. Push-and-pull rod; 311. Stop block; 312. Return spring; 313. Vertical rod. DETAILED DESCRIPTION

[0040] The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention; it is obvious that the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments, and all other embodiments obtained by ordinary technicians in this field based on the embodiments of the present invention without making creative work are within the scope of protection of the present invention.

[0041] In the description of the present invention, it should be noted that the terms "upper", "lower", "inner", "outer", "top / bottom" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific position, be constructed and operated in a specific position, and therefore cannot be understood as limiting the present invention. In addition, the terms "first" and "second" are used for descriptive purposes only and cannot be understood as indicating or implying relative importance.

[0042] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "provided with", "mounted / connected", "connected", etc. should be understood in a broad sense. For example, "connected" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances. Example

[0043] See also Figure 1-3A modular quick-change mold core mold sleeve comprises a main core sleeve assembly and a secondary core sleeve assembly. The main core sleeve assembly comprises a main mold core 101. A main mold sleeve 102 matching the main mold core 101 is sleeved on the outer wall thereof. A passive connecting ring 104 is fixedly connected to the outer wall of one end of the main mold sleeve 102. An equipment connector for connecting to a production device is fixedly connected to the other end of the main mold core 101. The size of the main mold core 101 is the same as that of a standard mold core for producing a pipe section with an outer diameter of 12 mm to 16 mm. The main core sleeve assembly can be used independently. By connecting the main core sleeve assembly to the production device through the equipment connector, the main mold core 101 and the main mold sleeve 102 can be used to produce a pipe section with an outer diameter of 12 mm to 16 mm. The secondary core sleeve assembly includes a secondary mold core 201, and the outer wall of the secondary mold core 201 is provided with a secondary mold sleeve 202 matching it. The size of the secondary mold core 201 is the same as the standard mold core used to produce the pipe segment with an outer diameter of 5mm to 10mm. The size of the secondary mold core 201 can be adaptively adjusted by professional and technical personnel in this field according to the production situation, and is not limited to the above size. A plurality of 201s of different sizes can also be set to meet different production requirements. The secondary core sleeve assembly is used in conjunction with the main core sleeve assembly. After the secondary core sleeve assembly is connected to the main core sleeve assembly, the secondary mold core 201 and the secondary mold sleeve 202 can be used to produce the outer diameter of The present invention is a pipe section of 5mm to 10mm, and there is no need to disassemble the mold core and the mold sleeve. One end of the secondary mold core 201 is fixedly connected with a positioning block 203, and the middle of the positioning block 203 is provided with a through hole 204 matching the secondary mold core 201. The middle of one end of the main mold core 101 is provided with a positioning groove 103 matching the positioning block 203. The positioning groove 103 and the positioning block 203 can provide a positioning effect, which can prevent the main core sleeve assembly and the secondary core sleeve assembly from being misaligned when connected, and facilitate the connection of the main core sleeve assembly and the secondary core sleeve assembly. An active connection block 205 is fixedly connected to the outer wall of one end of the secondary mold sleeve 202, and one end of the active connection block 205 is provided with a through hole 204 matching the passive connection ring 104. The passive connecting ring 104 is provided with an external thread on its outer wall, and an internal thread matching the external thread is provided on the inner wall of the thread groove 206. The main core sleeve assembly and the auxiliary core sleeve assembly are threadedly connected and fixed through the passive connecting ring 104, the active connecting block 205 and the thread groove 206. The connection is convenient and quick, which can greatly reduce the time for replacing the mold core and mold sleeve, thereby significantly improving the production efficiency. The upper and lower outer walls of the active connecting block 205 are fixedly connected with disassembly and assembly blocks 207, and one side of the disassembly and assembly block 207 is fixedly connected with a reinforcement rod 208, and the upper and lower outer walls of the auxiliary mold sleeve 202 are fixedly connected with slide rails 209.

[0044] See also Figure 1-8 A method for using a modular quick-change mold core and mold sleeve comprises the following steps:

[0045] S1. Install the main core sleeve assembly on the production equipment, and then directly produce pipe sections with an outer diameter of 12 mm to 16 mm through the main mold core 101 and the main mold sleeve 102;

[0046] S2. When it is necessary to produce a pipe section with an outer diameter of 5 mm to 10 mm, the auxiliary core sleeve assembly is connected and fixed to the main core sleeve assembly by the disassembly and assembly auxiliary device, so that the pipe section with an outer diameter of 5 mm to 10 mm can be produced;

[0047] S3. When it is necessary to produce a pipe section with an outer diameter of 12mm to 16mm again, it is only necessary to remove the secondary core sleeve assembly through the disassembly and assembly auxiliary device.

[0048] See also Figure 4-6 and Figure 8 The disassembly and assembly auxiliary device includes a disassembly and assembly connection ring 301 that matches the active connection block 205, and one end of the disassembly and assembly connection ring 301 is provided with two symmetrically arranged card slots 302 that match the disassembly and assembly card block 207, and the inner side of the card slot 302 is provided with a slot 303 that matches the reinforcement plug rod 208, and the inner wall of the slot 303 is fixedly connected with two symmetrically arranged sliders 304, and the top of one of the sliders 304 is provided with a slide groove 305 that matches the slide rail 209, and the other The bottom end of the slider 304 is provided with a slide groove 305 matching the slide rail 209. When installing the secondary core sleeve assembly, the slider 304 is connected to the slide rail 209 through the slide groove 305, which can further strengthen the connection between the disassembly connection ring 301 and the active connection block 205, thereby preventing the disassembly block 207 and the reinforcement rod 208 from breaking, thereby improving stability. The other end of the disassembly connection ring 301 is fixedly connected with a support plate 306, and the support plate 306 is away from one side of the disassembly connection ring 301. The middle part is fixedly connected with a connecting column 307, and one end of the connecting column 307 is fixedly connected with a handle rod 308. Through the disassembly and assembly of the connecting ring 301, the card slot 302, the slot 303, the support plate 306, the connecting column 307, the disassembly and assembly of the card block 207, and the reinforcement plug rod 208, when in use, the staff will put the disassembly and assembly of the connecting ring 301 on the outside of the secondary mold sleeve 202, and insert the reinforcement plug rod 208 into the slot 303, the disassembly and assembly of the card block 207 into the slot 302, and then insert the positioning block 208 into the positioning block 208. 03 is aligned with the positioning groove 103, and then the disassembly connection ring 301 is rotated by the handle rod 308 to drive the active connection block 205 to be threadedly connected with the passive connection ring 104, thereby connecting and fixing the secondary core sleeve assembly to the main core sleeve assembly. Similarly, the secondary core sleeve assembly can also be removed from the main core sleeve assembly. The operation is simple and easy to use, which greatly facilitates the connection and disassembly between the main core sleeve assembly and the secondary core sleeve assembly, thereby further reducing the time for replacing the core and sleeve, and improving production efficiency.

[0049] See also Figure 4 and 7A built-in groove 309 is provided inside the connecting column 307, and a push rod 310 is slidably connected inside the built-in groove 309. A stopper 311 is fixedly connected to the outer wall of the push rod 310, and a return spring 312 is fixedly connected to one side of the stopper 311. The other end of the return spring 312 is fixedly connected to the inner wall of the built-in groove 309. One end of the push rod 310 passes through the support plate 306 and is fixedly connected to a vertical rod 313. The other end of the push rod 310 passes through the handle rod 308 and extends to the outside of the handle rod 308. The push rod 310 is slidably connected to the support plate 306, the connecting column 307, and the handle rod 308. The length of the rod 313 is greater than the outer diameter of the auxiliary mold sleeve 202. Through the built-in groove 309, the push rod 310, the block 311, the reset spring 312, and the vertical rod 313, after the auxiliary core sleeve assembly is removed from the main core sleeve assembly, the push rod 310 can be pushed to move the vertical rod 313 toward the disassembly connection ring 301, thereby driving the vertical rod 313 to push the auxiliary mold sleeve 202, so that the auxiliary core sleeve assembly is separated from the disassembly auxiliary device. The temperature of the mold core and the mold sleeve that have just finished production is relatively high. Through the above settings, the staff can be prevented from contacting the auxiliary mold core 201 and the auxiliary mold sleeve 202, thereby preventing the staff from being scalded and improving the safety performance.

[0050] The present invention replaces the traditional core mold sleeve with two sets of combined core mold sleeves, namely a specially made main core sleeve assembly and a secondary core sleeve assembly. When the core mold sleeve needs to be replaced, it is only necessary to connect and fix the secondary core sleeve assembly to the main core sleeve assembly without disassembling the main core sleeve assembly. The main core sleeve assembly and the secondary core sleeve assembly are threadedly connected and fixed via a passive connecting ring 104, an active connecting block 205 and a threaded groove 206. The connection is convenient and quick, which can greatly reduce the time for replacing the core mold sleeve, thereby significantly improving production efficiency. A disassembly and assembly auxiliary device is specially provided for use with the device. The device is simple to operate and easy to use, which greatly facilitates the connection and disassembly between the main core sleeve assembly and the secondary core sleeve assembly, thereby further reducing the time for replacing the core mold sleeve and improving production efficiency.

[0051] The above is only a preferred specific implementation of the present invention; however, the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical solution and its improved conception within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A modular quick-change mold core and mold sleeve, comprising a main core sleeve assembly and a secondary core sleeve assembly, characterized in that: The main core sleeve assembly comprises a main mold core (101), the outer wall of the main mold core (101) is sleeved with a main mold sleeve (102) matching the main mold core, and a passive connecting ring (104) is fixedly connected to the outer wall of one end of the main mold sleeve (102); the secondary core sleeve assembly comprises a secondary mold core (201), the outer wall of the secondary mold core (201) is sleeved with a secondary mold sleeve (202) matching the main mold core, and one end of the secondary mold core (201) is fixedly connected to a positioning block (203), and the secondary mold sleeve ( An active connection block (205) is fixedly connected to the outer wall of one end of the auxiliary mold sleeve (202); a threaded groove (206) matching the passive connection ring (104) is formed at one end of the active connection block (205); disassembly and assembly blocks (207) are fixedly connected to the outer walls on both upper and lower sides of the active connection block (205); a reinforcement plug rod (208) is fixedly connected to one side of the disassembly and assembly block (207); and slide rails (209) are fixedly connected to the outer walls on both upper and lower sides of the auxiliary mold sleeve (202); The method for using the modular quick-change mold core and mold sleeve comprises the following steps: S1. Install the main core sleeve assembly on the production equipment, and then directly produce a pipe section with an outer diameter of 12 mm to 16 mm through the main mold core (101) and the main mold sleeve (102); S2. When it is necessary to produce a pipe section with an outer diameter of 5 mm to 10 mm, the auxiliary core sleeve assembly is connected and fixed to the main core sleeve assembly by the disassembly and assembly auxiliary device, so that the pipe section with an outer diameter of 5 mm to 10 mm can be produced; S3. When it is necessary to produce a pipe section with an outer diameter of 12mm to 16mm again, it is only necessary to remove the secondary core sleeve assembly through the disassembly and assembly auxiliary device; The assembly and disassembly auxiliary device comprises an assembly and disassembly connection ring (301) matching with the active connection block (205); one end of the assembly and disassembly connection ring (301) is provided with two symmetrically arranged card slots (302) matching with the assembly and disassembly card block (207); the inner side of the card slot (302) is provided with a slot (303) matching with the reinforcement plug rod (208); the other end of the assembly and disassembly connection ring (301) is fixedly connected with a support plate (306), and the support plate (306) is away from the assembly and disassembly connection ring. A connecting column (307) is fixedly connected to the middle of one side of the connecting ring (301), and a handle rod (308) is fixedly connected to one end of the connecting column (307). Two symmetrically arranged sliding blocks (304) are fixedly connected to the inner wall of the slot (303), wherein a sliding groove (305) matching the sliding rail (209) is formed at the top end of one of the sliding blocks (304), and a sliding groove (305) matching the sliding rail (209) is formed at the bottom end of the other sliding block (304).

2. A modular quick-change mold core and mold sleeve according to claim 1, characterized in that: The other end of the main mold core (101) is fixedly connected to an equipment connector for connecting to production equipment, and the size of the main mold core (101) is the same as a standard mold core for producing pipe sections with an outer diameter of 12 mm to 16 mm.

3. The modular quick-change mold core and mold sleeve according to claim 1, characterized in that: The size of the secondary mold core (201) is the same as that of a standard mold core used for producing a pipe section with an outer diameter of 5 mm to 10 mm.

4. The modular quick-change mold core and mold sleeve according to claim 1, characterized in that: A through hole (204) matching the secondary mold core (201) is provided in the middle of the positioning block (203), and a positioning groove (103) matching the positioning block (203) is provided in the middle of one end of the main mold core (101).

5. The modular quick-change mold core and mold sleeve according to claim 1, characterized in that: An external thread is provided on the outer wall of the passive connection ring (104), and an internal thread matching the external thread is provided on the inner wall of the thread groove (206).

6. The modular quick-change mold core and mold sleeve according to claim 1, characterized in that: A built-in groove (309) is provided inside the connecting column (307), a push-and-separate rod (310) is slidably connected inside the built-in groove (309), a stopper (311) is fixedly connected to the outer wall of the push-and-separate rod (310), one side of the stopper (311) is fixedly connected to a return spring (312), the other end of the return spring (312) is fixedly connected to the inner wall of the built-in groove (309), one end of the push-and-separate rod (310) passes through the support plate (306) and is fixedly connected to a vertical rod (313), and the other end of the push-and-separate rod (310) passes through the handle rod (308) and extends to the outside of the handle rod (308).

7. The modular quick-change mold core and mold sleeve according to claim 6, characterized in that: The push-and-split rod (310) is slidably connected to the support plate (306), the connecting column (307), and the handle rod (308); the length of the vertical rod (313) is greater than the outer diameter of the secondary mold sleeve (202).

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