A sealed and leak-proof hose production equipment

Abstract

The present invention belongs to the technical field of hose production equipment, and discloses a sealed and leak-proof hose production equipment, comprising an extruder, and also comprising: a mold, which is arranged at the output end of the extruder; the mold comprises a mold shell fixedly connected to the output end of the extruder, a support member is fixedly connected to the mold shell, and one end of the support member extends to the outside of the mold shell and is fixedly connected to the support of the extruder. The above scheme is to cut off the hose at the outlet of the forming core rod, and then rotate the mold shell to drive the forming mechanism and the forming core rod to rotate. At the same time, the mold shell will also drive the sealing ring and the forming mechanism to rotate synchronously, forcing the forming mechanism to move outward in the axial direction to seal the forming core rod. When the pin shaft on the next group of forming mechanisms slides into the recessed area, the forming mechanism of the group is reset by its own elastic force, thereby quickly changing the diameter of the produced hose, and at the same time avoiding the need to shut down the extruder.

Description

Technical Field

[0001] The invention belongs to the technical field of hose production equipment, in particular to a sealed and leak-proof hose production equipment. Background Art

[0002] A hose is a hollow flexible pipe made of rubber or synthetic materials, mainly used for transporting liquids, gases, and granular substances.

[0003] The extruder is a core piece of equipment in hose production. During hose production, rubber or synthetic materials are typically squeezed through a mold by the extruder. During hose production, operators typically replace the extruder's die head to produce hoses of different diameters to meet customer needs. When replacing the die head, the extruder needs to be shut down and allowed to cool before the operator can replace it. However, in actual operation, shutting down the machine and waiting for the equipment to cool before replacing the die head consumes a significant amount of time, thereby reducing hose production efficiency. Therefore, to address this issue, a sealed, leak-proof hose production device was proposed. Summary of the Invention

[0004] In order to solve the problems raised in the above background technology, the present invention provides a sealed and leak-proof hose production equipment, which solves the problem of wasting a lot of time due to changing the die head during the production of hoses with different diameters.

[0005] To achieve the above object, the present invention provides the following technical solution: a sealed and leak-proof hose production device, comprising an extruder, and further comprising: a die, which is arranged at the output end of the extruder;

[0006] The mold includes a mold shell fixedly connected to the output end of the extruder, a support member is fixedly connected to the mold shell, and one end of the support member extends to the outside of the mold shell and is fixedly connected to the support of the extruder, an adjustment member located inside the mold shell is fixedly sleeved on the outer periphery of the support member, a sealing ring member is movably sleeved on the adjustment member, a guide groove located inside the sealing ring member is opened on the adjustment member, and a recessed area is provided on the guide groove;

[0007] The annular array on the mold shell is fixedly connected to the forming mechanisms with different inner diameters, and the forming core rods with different diameters are movably sleeved in the several forming mechanisms. One end of the forming core rod passes through the sealing ring and extends into the interior thereof and is elastically connected to the outer periphery of the adjusting member. The forming core rod has a tendency to move toward the adjusting member due to its own tension, and one end of the forming core rod is provided with a pin shaft that can slide in the guide groove;

[0008] The annular array inside the mold shell is provided with a connecting column fixedly connected to the outer periphery of the sealing ring; the forming core rod can block the forming mechanism when it moves axially, and the forming core rod is in an unobstructed state when the pin shaft on the forming core rod is in the recessed area.

[0009] Preferably, the forming mechanism includes a discharge port fixedly connected to and installed on the outer periphery of the mold shell, and a discharge pipe is movably sleeved on the outer periphery of the discharge port. The discharge pipe is fixedly installed on the discharge port by bolts, and the inner wall of the discharge pipe is fixedly connected to a scraper ring sleeved on the outside of the forming core rod.

[0010] Preferably, the forming core rod comprises an elastic core rod sleeved in the discharge port, one end of the elastic core rod passes through a sealing ring and is elastically connected to the adjusting member, and a pin is provided on the elastic core rod, the end of the elastic core rod is a blocking area, and when the blocking area moves outward in the axial direction, it can block the communication between the discharge port and the outside world through the discharge pipe;

[0011] The forming core rod also includes a threaded core rod threadedly connected to one end of the elastic core rod, the diameter of the threaded core rod near the blocking area is smaller than the diameter of the rest of the threaded core rod, and the threaded core rod is sleeved in the scraper ring;

[0012] The scraper ring can scrape off the residual material on the outer periphery of the threaded core rod when it moves outward in the axial direction.

[0013] Preferably, the support member is a hollow member, one end of which can be connected to the cavity of the mold shell. A movable sleeve inside the support member is provided with a plug for sealing the connection between the mold shell and the support member. An elastic member is provided inside the support member for supporting the plug so that it is located at the end of the support member.

[0014] Preferably, a support plate located outside the mold shell is fixedly connected to the outer periphery of the support member, and an overflow port located outside the mold shell is also provided on the support member.

[0015] Preferably, a cooling element is fixedly provided at the outlet of the forming mechanism, and the cooling element is provided with a water inlet and a water outlet.

[0016] Preferably, the outer periphery of the formwork is provided with a plurality of adjusting handles in an annular array for assisting the rotation of the formwork.

[0017] Preferably, the adjustment handle comprises a hollow rod fixed to the mold shell, one end of the hollow rod is movably sleeved with a piston pin, one end of the piston pin can be snapped into a slot on the support plate, and a portion of the hollow rod located outside the mold shell is sleeved with a tension spring sleeve grip, and in an initial state, the tension spring sleeve grip has a tendency to move toward the hollow rod;

[0018] The support plate is provided with a bayonet hole which can cooperate with the piston bayonet pin.

[0019] Compared with the prior art, the present invention has the following beneficial effects:

[0020] The above solution is to cut off the hose at the outlet of the forming core rod, and then rotate the mold shell to drive the forming mechanism and the forming core rod to rotate. At the same time, the mold shell also drives the sealing ring and the forming mechanism to rotate synchronously. Since the support member and the adjustment member remain unchanged, the pin shaft on the forming mechanism will slide from the recessed area to the guide groove, thereby forcing the forming mechanism to move axially and outward to block the forming core rod. When the pin shaft on the next group of forming mechanisms slides into the recessed area, the forming mechanism of this group is reset by its own elastic force, thereby quickly changing the diameter of the produced hose and avoiding the need to shut down the extruder.

[0021] In the above scheme, the forming core rod is blocked by the forming mechanism and during the process of switching to the next forming mechanism and forming core rod, the extruder continues to feed the mold shell. At this time, the material in the mold shell will squeeze the plug, causing the elastic member to be compressed and enter the support member, so as to avoid the situation where the continuously supplied material damages the equipment. If the operator makes a mistake and the forming mechanism and the forming core rod fail to rotate to the specified position, causing the forming core rod to remain in the closed state, the plug will move axially and pass over the overflow port. At this time, the material in the mold shell will be discharged through the overflow port to release the pressure, thereby further improving the safety of the device.

[0022] The above scheme creates a negative pressure state inside the hollow rod by retracting the tension spring sleeve handle, and drives the piston pin to disengage from the bayonet on the support plate. At this time, the operator rotates the adjustment handle to drive the mold shell to move, and the piston pin will abut against the side wall of the support plate until the next set of adjustment handles reaches this position. Under the action of the tension spring on the tension spring sleeve handle, the piston pin will be stuck in the bayonet to fix the mold shell, thereby ensuring the stability of the device during the production of rubber hoses. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0024] Figure 2 Schematic diagram of the structure of the mold of the present invention;

[0025] Figure 3 A side plan perspective view of the mold of the present invention;

[0026] Figure 4 It is a partial cross-sectional structural schematic diagram of the sealing ring of the present invention;

[0027] Figure 5 It is a schematic side cross-sectional structural diagram of the forming mechanism of the present invention;

[0028] Figure 6 for Figure 5 Enlarged view of point A in the middle;

[0029] Figure 7Schematic diagram of the front cross-sectional structure of the mold of the present invention;

[0030] Figure 8 for Figure 7 Enlarged view of point B in the middle;

[0031] Figure 9 This is a schematic diagram of the top cross-sectional structure of the adjustment handle of the present invention;

[0032] Figure 10 for Figure 9 Enlarged view of point C in the middle.

[0033] In the figure: 1. Extruder; 2. Mold; 21. Mold shell; 211. Connecting column; 22. Support member; 221. Plug; 222. Elastic member; 223. Overflow port; 224. Support plate; 23. Adjusting member; 24. Sealing ring; 25. Guide groove; 26. Recessed area; 3. Molding mechanism; 31. Discharge port; 32. Discharge pipe; 33. Scraper ring; 4. Molding core rod; 41. Elastic core rod; 42. Threaded core rod; 43. Sealing area; 5. Adjusting handle; 51. Hollow rod; 52. Piston pin; 53. Tension spring sleeve handle; 6. Cooling member. DETAILED DESCRIPTION

[0034] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0035] like Figures 1 to 10 As shown, the present invention provides a sealed and leak-proof hose production device, comprising an extruder 1, and further comprising: a die 2, which is arranged at the output end of the extruder 1;

[0036] The mold 2 includes a mold shell 21 fixedly connected to the output end of the extruder 1, a support member 22 is fixedly connected to the mold shell 21, and one end of the support member 22 extends to the outside of the mold shell 21 and is fixedly connected to the support of the extruder 1. An adjustment member 23 located inside the mold shell 21 is fixedly sleeved on the outer periphery of the support member 22, and a sealing ring 24 is movably sleeved on the adjustment member 23. A guide groove 25 located inside the sealing ring 24 is formed on the adjustment member 23, and a recessed area 26 is provided on the guide groove 25;

[0037] The mold shell 21 is fixedly connected to a circular array of forming mechanisms 3 with different inner diameters, and several forming mechanisms 3 are movably provided with forming core rods 4 with different diameters. One end of the forming core rod 4 passes through the sealing ring 24 and extends into the interior thereof to be elastically connected to the outer periphery of the adjusting member 23. The forming core rod 4 has a tendency to move toward the adjusting member 23 due to its own tension. One end of the forming core rod 4 is provided with a pin that can slide in the guide groove 25.

[0038] The mold shell 21 is provided with an annular array of connecting columns 211 fixedly connected to the outer periphery of the sealing ring 24; the forming core rod 4 can block the forming mechanism 3 when it moves axially, and the forming core rod 4 is in an unobstructed state when the pin on the forming core rod 4 is in the recessed area 26;

[0039] By adopting the above scheme, the hose at the outlet of the forming core rod 4 is cut off, and then the rotating mold shell 21 drives the forming mechanism 3 and the forming core rod 4 to rotate. At the same time, the mold shell 21 also drives the sealing ring 24 and the forming mechanism 3 to rotate synchronously. Since the support member 22 and the adjustment member 23 remain unchanged, the pin shaft on the forming mechanism 3 will also slide from the recessed area 26 to the guide groove 25, thereby forcing the forming mechanism 3 to move axially and outward to block the forming core rod 4. When the pin shaft on the next group of forming mechanisms 3 slides into the recessed area 26, the group of forming mechanisms 3 is reset by its own elastic force, thereby quickly changing the diameter of the produced hose, and avoiding the need to shut down the extruder 1; at the same time, an electric heating wire can be set on the mold shell 21 to prevent the rubber material from solidifying in the mold shell 21.

[0040] like Figure 2-Figure 6 and Figure 9 As shown, the forming mechanism 3 includes a discharge port 31 fixedly connected to and mounted on the outer periphery of the mold shell 21. A discharge pipe 32 is movably mounted on the outer periphery of the discharge port 31. The discharge pipe 32 is fixedly mounted on the discharge port 31 by bolts. A scraper ring 33 is fixedly connected to the inner wall of the discharge pipe 32 and is mounted on the outer side of the forming core rod 4.

[0041] The forming core rod 4 includes an elastic core rod 41 sleeved in the discharge port 31. One end of the elastic core rod 41 passes through the sealing ring 24 and is elastically connected to the adjusting member 23. A pin is provided on the elastic core rod 41. The end of the elastic core rod 41 is a blocking area 43. When the blocking area 43 moves outward in the axial direction, it can block the discharge port 31 from communicating with the outside world through the discharge pipe 32.

[0042] The forming core rod 4 also includes a threaded core rod 42 threadedly connected to one end of the elastic core rod 41. The diameter of the threaded core rod 42 near the blocking area 43 is smaller than the diameter of the rest of the threaded core rod 42. The threaded core rod 42 is sleeved in the scraper ring 33. When the scraper ring 33 moves outward along the axis, it can scrape off the excess material on the outer periphery of the threaded core rod 42.

[0043] With the above solution, when one group of forming mechanisms 3 and forming core rods 4 is working, the other two groups of forming mechanisms 3 and forming core rods 4 are in a stopped state. At this time, the operator can remove the discharge pipe 32 to clean the residual material in the forming mechanism 3. The scraper ring 33 is provided so that it can move with the discharge pipe 32 to scrape the residual material outside the threaded core rod 42. The operator can also remove the threaded core rod 42 to clean the residual material in the discharge port 31.

[0044] It is worth noting that a heating wire needs to be provided around the outer periphery of the discharge port 31 to prevent the cooled rubber from being blocked at the discharge port 31 .

[0045] like Figure 2 、 Figure 4 and Figure 7-Figure 9 As shown, the support member 22 is a hollow member, one end of which can be connected to the cavity of the mold shell 21. A supporting plug 221 is movably sleeved in the support member 22 for sealing the connection between the mold shell 21 and the support member 22. An elastic member 222 is provided in the support member 22 for supporting the plug 221 so that it is located at the end of the support member 22.

[0046] The outer periphery of the support member 22 is fixedly connected to a support plate 224 located outside the mold shell 21. The support member 22 is also provided with an overflow port 223 located outside the mold shell 21.

[0047] By adopting the above scheme, the forming core rod 4 is blocked by the forming mechanism 3 and in the process of switching to the next group of forming mechanisms 3 and forming core rod 4, the extruder 1 continues to feed material to the mold shell 21. At this time, the material in the mold shell 21 will squeeze the plug 221 to compress the elastic member 222 and enter the support member 22, so as to avoid the continuous supply of material damaging the equipment. If the operator mistakenly causes the forming mechanism 3 and the forming core rod 4 to fail to rotate to the specified position and the forming core rod 4 is continuously in a closed state, the plug 221 will move axially and pass over the overflow port 223. At this time, the material in the mold shell 21 will be discharged through the overflow port 223 to release the pressure, thereby further improving the safety of the device.

[0048] like Figure 2 、 Figure 3 and Figure 5-Figure 7 As shown, a cooling element 6 is fixedly provided at the outlet of the forming mechanism 3, and a water inlet and a water outlet are provided on the cooling element 6;

[0049] By adopting the above solution, the cooling member 6 can be provided to cool the rubber material at the outlet of the forming core rod 4, thereby preventing the rubber hose from deforming due to thermal expansion and contraction after being extruded through the forming core rod 4.

[0050] like Figure 2 、 Figure 3 、 Figure 7 、 Figure 9and Figure 10 As shown, a plurality of adjustment handles 5 for assisting the rotation of the mold shell 21 are provided in an annular array on the periphery of the mold shell 21;

[0051] The adjustment handle 5 includes a hollow rod 51 fixed to the mold shell 21. A piston pin 52 is movably mounted on one end of the hollow rod 51. One end of the piston pin 52 can be engaged with a slot on the support plate 224. A tension spring sleeve grip 53 is mounted on the portion of the hollow rod 51 located outside the mold shell 21. In the initial state, the tension spring sleeve grip 53 tends to move toward the hollow rod 51.

[0052] The support plate 224 is provided with a bayonet that can cooperate with the piston bayonet pin 52;

[0053] By adopting the above scheme, a negative pressure state is created inside the hollow rod 51 by retracting the tension spring sleeve handle 53, and the piston pin 52 is driven to disengage from the bayonet on the support plate 224. At this time, the operator rotates the adjustment handle 5 to drive the mold shell 21 to move, and at the same time, the piston pin 52 will abut against the side wall of the support plate 224 until the next set of adjustment handles 5 reaches this position. Under the action of the tension spring on the tension spring sleeve handle 53, the piston pin 52 will be stuck in the bayonet, so as to fix the mold shell 21 and ensure the stability of the device during the production of rubber hoses.

[0054] The working principle and use process of the present invention:

[0055] When the diameter of the produced hose needs to be changed, the operator first needs to cut the hose at the outlet of the forming core rod 4, and then rotate the mold shell 21 to drive the forming mechanism 3 and the forming core rod 4 to rotate. At the same time, the mold shell 21 also drives the sealing ring 24 and the forming mechanism 3 to rotate synchronously. Since the support member 22 and the adjustment member 23 remain unchanged, the pin shaft on the forming mechanism 3 will slide from the recessed area 26 to the guide groove 25, thereby forcing the forming mechanism 3 to move axially and outward to block the forming core rod 4. When the pin shaft on the next group of forming mechanisms 3 slides into the recessed area 26, the forming mechanism 3 of this group is reset by its own elastic force, thereby changing the diameter of the produced hose;

[0056] Since the forming core rod 4 is blocked by the forming mechanism 3 and in the process of switching to the next forming mechanism 3 and the forming core rod 4, the extruder 1 continues to feed the mold shell 21. At this time, the material in the mold shell 21 will squeeze the plug 221, causing the elastic member 222 to be compressed and enter the support member 22, so as to avoid the situation where the continuously supplied material damages the equipment. If the operator makes a mistake and the forming mechanism 3 and the forming core rod 4 fail to rotate to the specified position, causing the forming core rod 4 to remain in the closed state, the plug 221 will move axially and pass over the overflow port 223. At this time, the material in the mold shell 21 will be discharged through the overflow port 223 to release the pressure, thereby further improving the safety of the device.

[0057] When the operator rotates the mold shell 21, it can be achieved by rotating the adjusting handle 5. First, the operator pulls back the tension spring sleeve grip 53 to create a negative pressure state inside the hollow rod 51, and drives the piston pin 52 to disengage from the socket on the support plate 224. At this time, the operator rotates the adjusting handle 5 to drive the mold shell 21 to move, and at the same time, the piston pin 52 will abut against the side wall of the support plate 224 until the next set of adjusting handles 5 reaches this position. Under the action of the tension spring on the tension spring sleeve grip 53, the piston pin 52 will be stuck in the socket to fix the mold shell 21, thereby ensuring the stability of the device during the production of rubber hoses.

[0058] It should be noted that, in this document, relational terms such as first and second, etc., are used only to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the terms "comprises," "comprising," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that includes a list of elements includes not only those elements but also other elements not explicitly listed, or elements inherent to such process, method, article, or apparatus.

[0059] While embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions, and variations may be made to these embodiments without departing from the principles and spirit of the invention, and that the scope of the invention is defined by the appended claims and their equivalents.

Claims

1. A sealed and leak-proof hose production device, comprising an extruder (1), characterized in that: Also includes: A die (2) is provided at the output end of the extruder (1); The mold (2) includes a mold shell (21) fixedly connected to the output end of the extruder (1), a support member (22) is fixedly connected to the mold shell (21), and one end of the support member (22) extends to the outside of the mold shell (21) and is fixedly connected to the support of the extruder (1), an adjustment member (23) located inside the mold shell (21) is fixedly sleeved on the outer periphery of the support member (22), a sealing ring member (24) is movably sleeved on the adjustment member (23), a guide groove (25) located inside the sealing ring member (24) is opened on the adjustment member (23), and a recessed area (26) is provided on the guide groove (25); The mold shell (21) is fixedly connected to a ring array with molding mechanisms (3) of different inner diameters, and molding core rods (4) of different diameters are movably sleeved in the plurality of molding mechanisms (3). One end of the molding core rod (4) passes through the sealing ring (24) and extends to the inside thereof to be elastically connected to the outer periphery of the adjusting member (23). The molding core rod (4) has a tendency to move toward the adjusting member (23) due to its own tension. One end of the molding core rod (4) is provided with a pin shaft that can slide in the guide groove (25); The inner annular array of the mold shell (21) is provided with connecting columns (211) fixedly connected to the outer periphery of the sealing ring (24); The forming core rod (4) can block the forming mechanism (3) when it moves in the axial direction, and the forming core rod (4) is in a smooth state when the pin shaft on the forming core rod (4) is in the recessed area (26).

2. The sealed and leak-proof hose production equipment according to claim 1, characterized in that: The molding mechanism (3) includes a discharge port (31) fixedly connected to and mounted on the outer periphery of the mold shell (21); a discharge pipe (32) is movably sleeved on the outer periphery of the discharge port (31); the discharge pipe (32) is fixedly mounted on the discharge port (31) by bolts; and a scraper ring (33) sleeved on the outside of the molding core rod (4) is fixedly connected to the inner wall of the discharge pipe (32).

3. The sealed and leak-proof hose production equipment according to claim 2, characterized in that: The forming core rod (4) includes an elastic core rod (41) sleeved in the discharge port (31), one end of the elastic core rod (41) passes through the sealing ring (24) and is elastically connected to the adjusting member (23), and a pin is provided on the elastic core rod (41), and the end of the elastic core rod (41) is a blocking area (43), and when the blocking area (43) moves outward in the axial direction, it can block the communication between the discharge port (31) and the outside through the discharge pipe (32); The forming core rod (4) further comprises a threaded core rod (42) threadedly connected to one end of the elastic core rod (41); the diameter of the threaded core rod (42) at one end close to the blocking area (43) is smaller than the diameter of the rest of the threaded core rod; the threaded core rod (42) is sleeved in the scraper ring (33); The scraper ring (33) can scrape off excess material on the periphery of the threaded core rod (42) when moving outward along the axis.

4. The sealed and leak-proof hose production equipment according to claim 1, characterized in that: The support member (22) is a hollow member, one end of which can be connected to the cavity of the mold shell (21). A plug (221) is provided in a movable sleeve inside the support member (22) for sealing the connection between the mold shell (21) and the support member (22). An elastic member (222) is provided inside the support member (22) for supporting the plug (221) so that it is located at the end of the support member (22).

5. The sealed and leak-proof hose production equipment according to claim 4, characterized in that: The outer periphery of the support member (22) is fixedly connected to a support plate (224) located outside the mold shell (21), and the support member (22) is also provided with an overflow port (223) located outside the mold shell (21).

6. The airtight and leak-proof hose production equipment according to claim 1, characterized in that: A cooling element (6) is fixedly sleeved at the outlet of the forming mechanism (3), and a water inlet and a water outlet are provided on the cooling element (6).

7. The sealed and leak-proof hose production equipment according to claim 1, characterized in that: A plurality of adjustment handles (5) for assisting the rotation of the mold shell (21) are provided in an annular array on the periphery of the mold shell (21).

8. The airtight and leak-proof hose production equipment according to claim 7, characterized in that: The adjustment handle (5) includes a hollow rod (51) fixed to the mold shell (21), one end of the hollow rod (51) is movably sleeved with a piston pin (52), one end of the piston pin (52) can be snapped into a slot on the support plate (224), and a portion of the hollow rod (51) located outside the mold shell (21) is sleeved with a tension spring sleeve handle (53), and in an initial state, the tension spring sleeve handle (53) has a tendency to move toward the hollow rod (51); The support plate (224) is provided with a bayonet hole capable of cooperating with the piston bayonet pin (52).

Images