Filler gun, filler device and continuous production system

Abstract

The application provides a filler gun, a filler device and a continuous production system, the filler gun comprises a gun body, a first driving device, a piston rod, a clamp, a piston sleeve and a second driving device, the gun body is provided with a feeding end, a discharging end, a material channel and a blowing channel, the piston rod is arranged in the material channel, the first driving device drives the piston rod to move back and forth along the axial direction, the clamp is arranged on one end of the piston rod and can move along with the piston rod; the piston sleeve is arranged in the material channel and is sleeved on the outside of the piston rod, the piston sleeve and the piston rod are relatively movable, one end of the piston sleeve is provided with a first acting part; the second driving device drives the piston sleeve to move back and forth along the axial direction, and the first acting part can force the clamp to perform a clamping action; the filler device comprises a mold and a filler gun which is detachably connected with the mold; the continuous production system comprises the filler device; the filler gun of the application can be automatically separated from the mold and automatically connected with the mold, and is suitable for a continuous production mode of circulating conveying the mold.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of molding technology, in particular to a filling gun, a filling device and a continuous production system. BACKGROUND

[0002] Expandable thermoplastic materials include but are not limited to expandable polystyrene (EPS), expandable polypropylene (EPP), expandable polyolefin (EPO), expandable thermoplastic polyurethane (ETPU) and all other materials that can be physically foamed by heating and molded.

[0003] At present, the molding production of such products generally adopts a single "molding machine" operation mode. In this mode, the mold is fixedly installed on the molding machine, and the position remains unchanged during the entire processing process. The molding machine sequentially performs processes such as mold closing, filling, steam heating, cooling, mold opening and demolding, until the entire production cycle is completed and the product is ejected. This production method has the problems of long production cycle and low efficiency, and due to the repeated switching of the same molding machine between heating and cooling states, energy consumption is large, causing serious energy waste.

[0004] In the filling process, a filling gun needs to be used. The existing filling gun is generally fixedly connected with the filling port of the mold, and the two cannot be automatically separated and automatically connected, so that one filling gun can only be used with one set of mold. For the continuous production mode of circulating conveying mold, the existing filling gun is obviously not suitable. SUMMARY

[0005] The first object of the present application is to provide a filling gun that can be automatically separated from and automatically connected with a mold.

[0006] The second object of the present application is to provide a filling device comprising the above-mentioned filling gun.

[0007] The third object of the present application is to provide a continuous production system comprising the above-mentioned filling device.

[0008] In order to achieve the above-mentioned first object, the present application provides a filling gun, which comprises a gun body, a first driving device, a piston rod, a clamping device, a piston sleeve and a second driving device. The gun body is provided with a feeding end, a discharging end, a material channel and a blowing passage. The material channel is in communication with the feeding end and the discharging end, respectively. The piston rod is arranged in the material channel. The first driving device drives the piston rod to move back and forth along the axial direction. The discharging end of the blowing passage is arranged in the discharging end. The clamping device is arranged on one end of the piston rod close to the discharging end and can move with the piston rod. The piston sleeve is arranged in the material channel and is sleeved on the outside of the piston rod. The piston sleeve and the piston rod are relatively movable. One end of the piston sleeve close to the clamping device is provided with a first acting part. The second driving device drives the piston sleeve to move back and forth along the axial direction. The first acting part can force the clamping device to perform a clamping action.

[0009] As can be seen from the above scheme, by setting a clamping device, a detachable connection can be achieved with the filling nozzle assembly on the mold, thereby controlling the opening and closing of the mold feed port; the piston sleeve is driven up and down by the second driving device, forcing the clamping device to perform clamping or releasing actions; the filling gun of the present invention can automatically connect and separate from the mold, and is suitable for continuous production mode of cyclic conveying mold, with advantages such as simple structure and convenient operation.

[0010] A further embodiment is that the clamp includes a connecting part and at least two elastic blocks, the first end of each of the elastic blocks is connected to the connecting part, the second end of each of the elastic blocks forms a clamping opening, and the second end of the elastic block can elastically swing into the clamping opening.

[0011] As can be seen from the above scheme, under normal conditions, the clamping port remains open, which facilitates the smooth insertion of the plug of the filling nozzle assembly into the clamping port; when clamping is required, the elastic block swings inward to close the clamping port, thereby clamping the plug.

[0012] A further option is to provide a second action part on the outer side of the elastic block, with the first action part and the second action part cooperating and connecting.

[0013] As can be seen from the above scheme, when the second action part moves upward, the second action part is pushed inward by the first action part, thereby driving the elastic block to swing inward; when the second action part moves downward, the force of the first action part on the second action part is released, and the elastic block automatically rebounds to the initial state.

[0014] A further design includes an outer sleeve and an inner sleeve, with the outer sleeve fitted over the outer sleeve. An air blowing channel is located between the outer and inner sleeves. The gun body is equipped with an air blowing connector, which is connected to the air inlet of the air blowing channel. A sealing ring is installed inside the discharge end, which is connected to both the outer and inner sleeves. The sealing ring is equipped with a discharge channel and multiple air holes. The material channel is connected to the discharge channel, and the multiple air holes are arranged circumferentially along the discharge channel. The air blowing channel is connected to the discharge channel through the air holes.

[0015] As can be seen from the above scheme, by setting up an air blowing channel and sending air in the discharge direction, a negative pressure can be formed in the material channel, which will cause the material to move from the feed end to the discharge end, thereby realizing the filling function.

[0016] To achieve the second objective mentioned above, the present invention provides a filling device, including a mold and the aforementioned filling gun. The mold is provided with a filling nozzle assembly, and the filling gun is detachably connected to the filling nozzle assembly. The filling gun can open or close the filling nozzle assembly.

[0017] As can be seen from the above solution, the present invention enables the automatic connection and separation of the filler gun and the mold, thereby meeting the requirements of continuous production with cyclic conveying; the present invention has the advantages of simple structure, convenient operation and significant advantages in production automation.

[0018] A further embodiment is that the filling nozzle assembly includes a mold connector and a plug. The mold connector has a mold inlet, and the plug is detachably installed inside the mold inlet, with one end of the plug protruding from the mold connector. The clamp is detachably connected to the plug, and the clamp opens or closes the mold inlet by moving the plug.

[0019] As can be seen from the above scheme, under normal circumstances, the plug blocks the mold inlet; when filling is required, the filling gun clamps the plug with the clamp and lifts it up, thereby opening the inlet and facilitating the smooth filling of materials.

[0020] A further embodiment includes an elastic sleeve and multiple balls in the filling nozzle assembly. The mold connector has multiple mounting holes that communicate with the mold inlet. The balls are movably positioned in the corresponding mounting holes and partially extend into the mold inlet. The elastic sleeve is fitted on the outside of the mold connector and can apply an inward force to the balls. The outer peripheral wall of the plug has an annular groove, and a portion of the balls can be embedded in the annular groove.

[0021] As can be seen from the above scheme, through the cooperation structure of the ball and the annular groove, the filling gun can quickly open and close the mold inlet by simply inserting and removing the plug. The operation is simple, safe and reliable.

[0022] A further embodiment includes a fixed frame, a first lifting assembly, a second lifting assembly, a base, and a conveying assembly. The first and second lifting assemblies are respectively disposed on the upper and lower sides of the fixed frame. The first lifting assembly includes a vertically movable packing support, and the second lifting assembly includes a vertically movable packing frame. The packing gun is disposed on the packing frame. The conveying assembly extends at least partially into the packing device. The base is disposed on the conveying assembly and moves along the conveying direction of the conveying assembly. The mold is disposed on the base, and both the base and the mold on it are disposed between the packing gun and the packing support.

[0023] As can be seen from the above scheme, by setting up a conveying component, the base and the mold installed on it are conveyed; the filling support can lift the base and mold upwards, so that they are temporarily separated from the conveying surface of the conveying component, so as to facilitate the filling operation; the up-and-down moving filling frame drives the filling gun to move up and down. During filling, by controlling the downward movement distance of the filling gun, the clamp and the plug can be accurately aligned and connected; then, the clamp performs a clamping action and pulls the plug upwards, thereby opening the filling port of the mold.

[0024] A further solution is to have a locking assembly connecting the base and the packing frame; the packing frame is equipped with an unlocking assembly that can force the locking assembly to unlock.

[0025] As can be seen from the above scheme, by setting up locking components, it can be ensured that the packing frame and the base remain reliably connected during the packing process, effectively preventing accidental separation, thereby ensuring the smooth and continuous operation of the packing.

[0026] To achieve the third objective mentioned above, the present invention provides a continuous production system including the aforementioned packing device. Attached Figure Description

[0027] Figure 1 This is an exploded view of an embodiment of the filler gun and the filler nozzle assembly of the present invention.

[0028] Figure 2 This is a cross-sectional view of an embodiment of the filler gun and the filler nozzle assembly of the present invention.

[0029] Figure 3 yes Figure 2 Enlarged view of point A in the middle.

[0030] Figure 4 This is an exploded view of the clamp and piston rod in an embodiment of the filler gun of the present invention.

[0031] Figure 5 This is an exploded view of the packing nozzle assembly in an embodiment of the packing device of the present invention.

[0032] Figure 6 This is a structural diagram of the base and mold in an embodiment of the filling device of the present invention.

[0033] Figure 7 This is a structural diagram of an embodiment of the packing device of the present invention.

[0034] Figure 8 This is a cross-sectional view of the first lifting component in an embodiment of the packing device of the present invention.

[0035] Figure 9 yes Figure 8 Enlarged view of point B in the middle.

[0036] Figure 10 This is a structural diagram of the packing frame and packing gun in an embodiment of the packing device of the present invention.

[0037] Figure 11 This is an exploded view of the locking and unlocking components in an embodiment of the packing device of the present invention.

[0038] Figure 12 This is a top view of an embodiment of the continuous production system of the present invention.

[0039] Explanation of reference numerals in the attached figures:

[0040] 1-Gun body, 11-Feed end, 12-Discharge end, 13-Material channel, 14-Blowing channel, 15-Blowing connector, 16-Outer sleeve, 17-Inner sleeve, 18-First fixed seat;

[0041] 2-First driving device;

[0042] 3-Piston rod;

[0043] 4-Clamping device, 41-Connecting part, 42-Elastic block, 421-Second actuating part, 43-Clamping port;

[0044] 5-Piston sleeve, 51-First actuating part;

[0045] 6-Second drive unit;

[0046] 7-Sealing ring, 71-Discharge channel, 72-First air hole, 73-Second air hole;

[0047] 10-Filling gun;

[0048] 20-Filling device, 201-Fixed frame, 202-First lifting assembly, 2021-Filling support, 20211-First positioning post, 2022-First lifting drive device, 2023-Mounting frame, 2024-First lifting frame, 2025-Buffer assembly, 20251-First fixing sleeve, 20252-Second fixing sleeve, 20253-Connector, 20254-Spring, 203-Second lifting assembly, 2031-Filling frame, 20311-Second positioning hole, 2032 - Second lifting drive device, 2033-Second lifting frame, 204-Base, 2041-Second positioning post, 205-Locking assembly, 2051-Second fixed seat, 20511-Locking groove, 20512-Unlocking groove, 20513-Sliding groove, 2052-Locking component, 2053-Elastic element, 2054-Sliding block, 20541-Groove, 20542-First protrusion, 20543-Second protrusion, 206-Unlocking assembly, 2061-Cylinder, 2062-Unlocking block;

[0049] 30-Mold, 301-Filling nozzle assembly, 3011-Mold connector, 30111-Mounting hole, 3012-Plug, 30121-Annular groove, 3013-Elastic sleeve, 3014-Ball;

[0050] 40-Conveying device, 401-Conveying frame, 402-Transplanter;

[0051] 50 - Heating device;

[0052] 60 - Cooling device;

[0053] 70 - Demolding device.

[0054] The present invention will be further described below with reference to the accompanying drawings and embodiments. Detailed Implementation

[0055] Example of a filler gun:

[0056] See Figures 1 to 4 and combined Figure 6 The filler gun 10 provided in this embodiment includes a gun body 1, a first driving device 2, a piston rod 3, a clamping device 4, a piston sleeve 5, and a second driving device 6.

[0057] The upper part of the gun body 1 is provided with a first fixed base 18, the second driving device 6 is provided on the first fixed base 18, and the first driving device 2 is provided above the second driving device 6.

[0058] The gun body 1 is provided with a feed end 11, a discharge end 12, a material channel 13, and an air blowing channel 14. The feed end 11 is located on one side of the first fixed base 18 and is used to communicate with the outer feeding pipe; the discharge end 12 is located at the lower part of the gun body 1 and is used to connect with the filling nozzle assembly 301 of the mold 30. The material channel 13 is located inside the gun body 1, and its two ends are respectively connected to the feed end 11 and the discharge end 12. The air blowing channel 14 is located inside the gun body 1 and outside the material channel 13. The first fixed base 18 is provided with an air blowing connector 15, which is connected to the air inlet of the air blowing channel 14. The air outlet of the air blowing channel 14 is located inside the discharge end 12 and is connected to the discharge end 12, and is used to blow air into the discharge end 12. The direction of the air blowing intersects the discharge direction at an acute angle, so that a negative pressure environment is formed in the material channel 13. The negative pressure is used to transport the material in the feed end 11 to the discharge end 12.

[0059] Piston rod 3 is disposed within feed channel 13. The first end of piston rod 3 passes through the second drive device 6 and connects to the first drive device 2, while the second end of piston rod 3 is connected to clamp 4. The first drive device 2 can drive piston rod 3 to move back and forth along its axial direction. The first drive device 2 is preferably a cylinder.

[0060] The piston sleeve 5 is disposed inside the feed channel 13 and sleeved on the outside of the piston rod 3. One end of the piston sleeve 5 is connected to the second drive device 6, which can drive the piston sleeve 5 to move back and forth along its axial direction. The second drive device 6 is preferably a cylinder.

[0061] A clamping device 4 is disposed on the end of the piston rod 3 near the discharge end 12 and can move with the piston rod 3. The clamping device 4 is provided with a clamping opening 43. Specifically, the clamping device 4 includes a connecting part 41 and at least two elastic blocks 42. In this embodiment, six elastic blocks 42 are used as an example. The first end of each of the elastic blocks 42 is fixedly connected to the connecting part 41, and the second end of each of the elastic blocks 42 forms the clamping opening 43. A gap is provided between two adjacent elastic blocks 42, so that the second end of the elastic block 42 can elastically swing into the clamping opening 43. The connecting part 41 and the elastic blocks 42 are integrally formed.

[0062] The piston sleeve 5 and the piston rod 3 can move relative to each other to force the clamp 4 to clamp or release the plug 3012. The piston sleeve 5 and the piston rod 3 can also move synchronously to facilitate pulling the plug 3012 upward after the clamp 4 has clamped it.

[0063] exist Figure 3 In the piston sleeve 5, a first actuating part 51 is provided at one end near the clamping device 4. The first actuating part 51 can force the clamping port 43 of the clamping device 4 to perform a clamping action. The first actuating part 51 is a tapered hole, the diameter of which gradually expands from top to bottom.

[0064] A second actuating part 421 is provided on the outer side of the second end of the elastic block 42. The second actuating part 421 is a downward and outward inclined surface. The first actuating part 51 and the second actuating part 421 are connected in cooperation.

[0065] When the clamping device 4 is in the initial lower position, the clamping opening 43 can be fitted onto the outer side of the end of the plug 3012. After that, the first driving device 2 drives the clamping device 4 to move upward. As the second action part 421 moves upward, the angle at which the second end of the elastic block 42 swings inward is greater than that of the first action part 51, and the clamping opening 43 of the clamping device 4 becomes smaller, which is more conducive to clamping the plug 3012. When the second action part 421 moves downward, the force of the first action part 51 on the second action part 421 gradually decreases and is released. The second end of the elastic block 42 automatically swings outward under its own elastic action and returns to the initial state. At this time, the clamping opening 43 of the clamping device 4 opens and the plug 3012 can be released.

[0066] Combination Figure 2 and Figure 3 The gun body 1 includes an outer sleeve 16 and an inner sleeve 17 arranged coaxially. The outer sleeve 16 is fitted outside the inner sleeve 17, and an annular air blowing channel 14 is formed between the outer sleeve 16 and the inner sleeve 17. An air blowing connector 15 is provided near the feed end 11 of the gun body 1, and the air blowing connector 15 is connected to the air inlet end of the air blowing channel 14.

[0067] A sealing ring 7 is provided inside the discharge end 12, with its upper and lower ends connected to the inner sleeve 17 and the outer sleeve 16, respectively. A discharge channel 71, multiple first air holes 72, and multiple second air holes 73 are provided in the middle of the sealing ring 7. The two ends of the discharge channel 71 are connected to the material channel 13 and the mold inlet, respectively. The multiple first air holes 72 and multiple second air holes 73 are arranged circumferentially along the middle of the discharge channel 71. The first air holes 72 extend radially along the sealing ring 7, and the second air holes 73 extend obliquely from one end of the first air hole 72 towards the discharge channel 71 along the discharge direction, with the inner diameter of the first air hole 72 being larger than the inner diameter of the second air hole 73. An air blowing channel 14 is connected to the discharge channel 71 through the first air holes 72 and the second air holes 73.

[0068] When the air blowing channel 14 blows air towards the discharge channel 71, a negative pressure is formed inside the material channel 13. The negative pressure can force the material in the feed end 11 to enter the material channel 13 and move towards the discharge channel 71, thus realizing the filling operation.

[0069] In one embodiment, the lower part of the piston sleeve 5 can be inserted into the sealing ring 7, and the outer diameter of the piston sleeve 5 is slightly smaller than or equal to the inner diameter of the discharge channel 71. When no packing is required, the piston sleeve 5 can temporarily block the discharge channel 71 to prevent debris from entering the material channel 13.

[0070] Example of a packing device:

[0071] See Figures 5 to 7 and combined Figure 4 The filling device 20 provided in this embodiment includes four molds 30 and multiple filling guns 10 as described in the above embodiments. Each mold 30 corresponds to four filling guns 10. Four filling nozzle assemblies 301 are provided on the molds 30. The filling nozzle assemblies 301 are arranged one-to-one with the filling guns 10 and are detachably connected. The filling guns 10 can open or close the filling nozzle assemblies 301.

[0072] The filling nozzle assembly 301 includes a mold connector 3011, a plug 3012, an elastic sleeve 3013, and multiple balls 3014. The mold connector 3011 is disposed on the upper mold of the mold 30, and has a mold inlet communicating with the product forming cavity. The plug 3012 is detachably disposed in the mold inlet, and one end of the plug 3012 protrudes upward from the mold connector 3011 for detachable connection with the clamping device 4.

[0073] The clamping device 4 clamps and moves the plug 3012 to pull out or push back the plug 3012, thereby opening or closing the mold feed port.

[0074] The mold connector 3011 has multiple mounting holes 30111, which are evenly spaced along the circumference of the mold connector 3011. The mounting holes 30111 penetrate the circumferential wall of the mold connector 30111 and communicate with the mold inlet. A ball bearing 3014 is movably disposed within the corresponding mounting hole 30111 and partially extends into the mold inlet for connection with the plug 3012. Furthermore, the diameter of the end of the mounting hole 30111 communicating with the mold inlet is slightly smaller than the diameter of the ball bearing 3014 to prevent the ball bearing 3014 from detaching from the mounting hole 30111 and fully entering the mold inlet.

[0075] The elastic sleeve 3013 is fitted on the outside of the mold connector 3011 and wraps around the outside of the ball 3014. The elastic sleeve 3013 can apply an inward force to the ball 3014 to ensure that the ball 3014 always remains partially inserted into the mold feed port without external force.

[0076] The outer peripheral wall of the plug 3012 is provided with an annular groove 30121. The part of the ball 3014 protruding from the mounting hole 30111 can be embedded in the annular groove 30121, thereby locking the plug 3012 and preventing the plug 3012 from accidentally falling out of the mold feed port.

[0077] When filling is required, the filling gun 10 clamps the plug 3012 and pulls the plug 3012 upward, so that the discharge channel 71 of the filling gun 10 is connected to the mold inlet, and filling can be performed at this time. After filling is completed, the filling gun 10 pushes the plug 3012 back in to block the mold inlet. At this time, the airflow blown out by the air blowing channel 14 can blow the material remaining in the material channel 13 upward and return it to the feed end 11 along the original path, so as to prevent the material from staying in the material channel 13.

[0078] See Figures 7 to 10 The filling device 20 also includes a fixed frame 201, a first lifting assembly 202, a second lifting assembly 203, a base 204, and a conveying assembly (not shown in the figure).

[0079] The first lifting assembly 202 and the second lifting assembly 203 are respectively disposed on the upper and lower sides of the fixed frame 201. The first lifting assembly 202 includes a filler support 2021, a first lifting drive device 2022, a mounting frame 2023, two first lifting frames 2024, and four buffer assemblies 2025. The two first lifting frames 2024 are arranged opposite to each other, and the two sides of the mounting frame 2023 are respectively connected to the two first lifting frames 2024. The filler support 2021 is disposed on the mounting frame 2023. The first lifting drive device 2022 can drive the two first lifting frames 2024 to move up and down synchronously, thereby driving the filler support 2021 to move up and down, which facilitates lifting the base 204 and the mold 30 on the conveying assembly, so that the base 204 is temporarily separated from the conveying surface of the conveying assembly, which facilitates the filling operation.

[0080] A buffer assembly 2025 is connected between the packing support 2021 and the mounting bracket 2023. Preferably, four buffer assemblies 2025 are respectively connected to the lower sides of the four corners of the packing support 2021, allowing the packing support 2021 to move elastically up and down relative to the mounting bracket 2023. The buffer assembly 2025 includes a first fixing sleeve 20251, a second fixing sleeve 20252, a connecting member 20253, and a spring 20254. The first fixing sleeve 20251 is fixed to the mounting bracket 2023, the second fixing sleeve 20252 is connected to the bottom wall of the packing support 2021, the two ends of the connecting member 20253 are movably connected to the first fixing sleeve 20251 and the second fixing sleeve 20252 respectively, and the spring 20254 elastically abuts against the first fixing sleeve 20251 and the second fixing sleeve 20252, allowing the second fixing sleeve 20252 to move elastically up and down relative to the first fixing sleeve 20251.

[0081] The packing support 2021 is provided with a plurality of first positioning posts 20211, which are positioned and engaged with the first positioning holes at the bottom of the base 204. The upper part of the base 204 is provided with a plurality of second positioning posts 2041, which are positioned and engaged with the second positioning holes 20311 on the packing frame 2031.

[0082] The second lifting assembly 203 includes a packing frame 2031, a second lifting drive device 2032, and two second lifting frames 2033. The two second lifting frames 2033 are arranged opposite to each other. Both sides of the packing frame 2031 are connected to the two second lifting frames 2033 respectively. Multiple packing guns 10 are mounted on the packing frame 2031, with the discharge end 12 of the packing guns 10 facing downwards. The second lifting drive device 2032 can drive the two second lifting frames 2033 to move synchronously up and down, thereby causing the packing frame 2031 and the packing guns 10 on it to move up and down.

[0083] The conveying component passes through the packing device 20 in the front-to-back direction, so that the mold 30 enters from one side of the packing device 20 and exits from the other side of the packing device 20 after the packing is completed.

[0084] The base 204 is mounted on the conveying surface of the conveying assembly and moves along the conveying direction of the conveying assembly. The mold 30 is mounted on the base 204 and moves synchronously with the base 204. The base 204 and the mold 30 on it are both positioned between the filling gun 10 and the filling support 2021.

[0085] The packing support 2021 can lift the base 204 and the mold 30 on it, temporarily separating the base 204 from the conveying surface to facilitate the packing operation. After packing is completed, the packing support 2021 lowers and puts the base 204 and the mold 30 on it back onto the conveying surface.

[0086] Combination Figure 6 , Figure 10 and Figure 11 To prevent accidental separation between the packing frame 2031 and the base 204 during the packing process, a locking component 205 is connected between the base 204 and the packing frame 2031 in this embodiment. An unlocking component 206 is provided on the packing frame 2031, which can force the locking component 205 to unlock. Specifically:

[0087] The locking assembly 205 includes a second fixing seat 2051, a locking member 2052, an elastic member 2053, and a sliding block 2054. One of the second fixing seat 2051 and the locking member 2052 is mounted on the base 204, and the other is mounted on the packing frame 2031. The second fixing seat 2051 is provided with a locking groove 20511, an unlocking groove 20512, and a sliding groove 20513, which communicates with both the locking groove 20511 and the unlocking groove 20512. The sliding block 2054 is slidably disposed within the sliding groove 20513. The sliding block 2054 is provided with a groove 20541, a first protrusion 20542, and a second protrusion 20543, with the groove 20541 positioned between the first protrusion 20542 and the second protrusion 20543. The locking fastener 2052 is detachably disposed within the locking groove 20511 and the recess 20541. The locking fastener 2052 can engage with the first protrusion 20542 to restrict the separation of the locking fastener 2052 from the second fixing seat 2051, that is, to restrict the separation of the base 204 and the packing frame 2031. The elastic member 2053 elastically abuts against the end of the sliding block 2054 and the groove wall of the sliding groove 20513, so that the sliding block 2054 can slide within the sliding groove 20513.

[0088] The unlocking component 206 can be inserted into the unlocking slot 20512. The unlocking component 206 pushes the first protrusion 20542 away from the locking slot 20511 through the second protrusion 20543, so that the locking fastener 2052 is separated from the first protrusion 20542, thereby unlocking. The unlocking component 206 includes a cylinder 2061 and an unlocking block 2062 connected to the driving end of the cylinder 2061. The cylinder 2061 is connected to the side wall of the packing frame 2031. The cylinder 2061 drives the unlocking block 2062 to move downward and insert it into the unlocking slot 20512.

[0089] Example of a continuous production system:

[0090] See Figure 12The continuous production system provided in this embodiment includes a conveying device 40, a heating device 50, a cooling device 60, a demolding device 70, and a filling device 20 as described in the previous embodiment. The filling device 20, heating device 50, cooling device 60, and demolding device 70 are all disposed within the conveying range of the conveying device 40. The base 204 and the mold 30 are both disposed on the conveying device 40 and can move along the conveying direction of the conveying device 40 to sequentially enter the filling device 20, heating device 50, cooling device 60, and demolding device 70, and are thus cyclically conveyed. The conveying device 40 is connected to the conveying assembly of the demolding device 70, allowing the mold 30 to be transferred between the conveying device 40 and the conveying assembly. Alternatively, the conveying assembly of the demolding device 70 is part of the conveying device 40.

[0091] The conveying route of the conveying device 40 is set to a closed loop or a linear loop to achieve the function of cyclic conveying and ensure continuous molding production of products.

[0092] The closed-loop type in this embodiment is a rectangular loop type. The conveying device 40 includes four conveyor frames 401 and four transplanters 402. The four conveyor frames 401 are connected end to end and arranged in a rectangle. The transplanters 402 are set at the connection between two adjacent conveyor frames 401 and are used to transfer the mold 30 on the previous conveyor frame 401 to the next conveyor frame 401.

[0093] In another embodiment, the closed-loop type is a circular loop type, and the conveying device includes a turntable that can rotate around its own axis. The filling device, heating device, cooling device and demolding device are arranged in sequence around the turntable, and the base and mold are set on the turntable and rotate with it.

[0094] In another embodiment, the conveying route of the conveying device is set as a linear cycle type. The conveying device includes two conveying frames and two elevators. The two conveying frames are arranged vertically, and the two elevators are respectively set at both ends of the conveying frames. The elevators move up and down between the two conveying frames to realize the mold cyclical movement between the upper and lower conveying frames.

[0095] In summary, by setting the clamping device 4, the present invention can achieve a detachable connection with the filling nozzle assembly 301 on the mold 30, thereby controlling the opening and closing of the mold feed port; by driving the piston sleeve 5 up and down through the second driving device 6, the clamping device 4 is forced to perform clamping or releasing actions; the filling gun 10 of the present invention can automatically connect and separate from the mold 30, and is suitable for continuous production mode of cyclic conveying mold 30, with advantages such as simple structure and convenient operation.

[0096] Finally, it should be emphasized that the above are merely preferred embodiments of the present invention and are not intended to limit the present invention. For those skilled in the art, the present invention can have various changes and modifications. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A filler gun, comprising a gun body, a first driving device, and a piston rod, wherein the gun body is provided with a feed end, a discharge end, a material channel, and an air blowing channel, the material channel being connected to the feed end and the discharge end respectively, the piston rod being disposed within the material channel, the first driving device driving the piston rod to move back and forth axially, and the air outlet end of the air blowing channel being disposed within the discharge end, characterized in that, The filling gun further comprises: a clamping device arranged on one end of the piston rod close to the discharge end and capable of moving along with the piston rod, the clamping device comprising a connecting portion and at least two elastic blocks, the first end of each of the elastic blocks being connected to the connecting portion, the second end of each of the elastic blocks being enclosed to form a clamping opening, and the second end of each of the elastic blocks being capable of elastically swinging towards the inside of the clamping opening; a piston sleeve arranged in the material channel and sleeved on the outside of the piston rod, the piston sleeve being capable of moving relative to the piston rod, and the first end of the piston sleeve being provided with a first acting portion; a second driving device for driving the piston sleeve to move back and forth along the axial direction, and the first acting portion being capable of forcing the clamping device to perform a clamping action; the gun body comprising an outer sleeve and an inner sleeve, the outer sleeve being sleeved on the outside of the inner sleeve, the air blowing channel being arranged between the outer sleeve and the inner sleeve, and the gun body being provided with an air blowing connector in communication with the air inlet end of the air blowing channel; a sealing ring being arranged in the discharge end, the sealing ring being connected to the outer sleeve and the inner sleeve respectively, the sealing ring being provided with a discharge channel and a plurality of air holes, the material channel being in communication with the discharge channel, and the plurality of air holes being arranged along the circumferential direction of the discharge channel, and the air blowing channel being in communication with the discharge channel through the air holes.

2. The filling gun according to claim 1, characterized in that: the outside of each of the elastic blocks is provided with a second acting portion, and the first acting portion is connected to the second acting portion in cooperation.

3. A filling device comprising a mold and the filling gun according to claim 1 or 2, characterized in that: the mold is provided with a filling nozzle assembly, the filling gun is detachably connected to the filling nozzle assembly, and the filling gun is capable of opening or closing the filling nozzle assembly.

4. The filling device according to claim 3, characterized in that: the filling nozzle assembly comprises a mold connecting head and a plug, the mold connecting head is provided with a mold feeding opening, the plug is detachably arranged in the mold feeding opening, and one end of the plug protrudes out of the mold connecting head; the clamping device is detachably connected to the plug, and the clamping device opens or closes the mold feeding opening by moving the plug.

5. The filling device according to claim 4, characterized in that: the filling nozzle assembly further comprises an elastic sleeve and a plurality of balls, the mold connecting head is provided with a plurality of mounting holes in communication with the mold feeding opening, the balls are movably arranged in the corresponding mounting holes and partially extend into the mold feeding opening, the elastic sleeve is sleeved on the outside of the mold connecting head, and the elastic sleeve is capable of applying an inward force to the balls; the outer peripheral wall of the plug is provided with an annular groove, and the balls are partially embedded in the annular groove.

6. The filling device according to claim 4, characterized in that: The filling device further comprises a fixing frame, a first lifting assembly, a second lifting assembly, a base and a conveying assembly, the first lifting assembly and the second lifting assembly are respectively arranged on the upper and lower sides of the fixing frame, the first lifting assembly comprises a filling support seat moving up and down, the second lifting assembly comprises a filling frame moving up and down, and the filling gun is arranged on the filling frame; The conveying assembly at least partially extends into the filling device, the base is arranged on the conveying assembly and moves along the conveying direction of the conveying assembly, the mold is arranged on the base, and the base and the mold thereon are arranged between the filling gun and the filling support seat.

7. The filling device according to claim 6, characterized in that: A locking assembly is connected between the base and the filling frame; An unlocking assembly is arranged on the filling frame, and the unlocking assembly can force the locking assembly to be unlocked.

8. Continuous production system, characterized in that: The filling device according to any one of claims 3 to 7.

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