Secondary throwing, filling and tail sealing device

Abstract

The invention relates to the technical field of cosmetic packaging, and discloses a secondary throwing, filling and tail sealing device which comprises a rack, a mold closing device and a forming mold, the mold closing device comprises a first assembling base, a second assembling base and a driving assembly, and the driving assembly is in transmission connection with the first assembling base and the second assembling base; the forming die comprises a first die and a second die, the first die is fixedly connected with the first assembly base, the second die is fixedly connected with the second assembly base, and the first die and the second die are further provided with negative pressure channels; the rack is further provided with an avoiding channel. The containing grooves in the first mold and the second mold contain the single-linkage secondary throwing pipes, when the secondary throwing pipes need to be sealed, the secondary throwing pipes enter the cavity between the first mold and the second mold through the avoiding channel, the driving assembly drives the first mold and the second mold to seal the single-linkage secondary throwing pipes every time when the first mold and the second mold are closed, the forming mold is miniaturized, and the forming efficiency is improved. The mold structure is simplified, the forming mold is convenient to mount, dismount and transfer, and the dismounting, mounting and maintaining cost is reduced.

Description

Technical Field

[0001] The invention relates to the technical field of cosmetic packaging, in particular to a single-shot filling and sealing device. Background Art

[0002] The tail sealing machine is one of the most common machines in the cosmetics production industry. The automatic hose tail sealing machine uses heating technology and principles to heat the sealing surface of the plastic hose and fuse the two sides of the hose mouth together under high pressure, avoiding the problem of loose sealing due to foreign matter on the tube wall. The FS single-shot filling and tail sealing mechanism is used for various plastic single-shot tube compression molding, and is widely applicable to cosmetics, pharmaceuticals, daily necessities, chemicals and other fields.

[0003] There are two main ways for the existing FS second-shot filling and sealing mechanism to form the second-shot tube die: one is to use large plastic molds, and the other is ultrasonic die-casting. When using large plastic molds, the packaging material itself is relatively complex, the finished product is relatively soft, and the molding styles are relatively diverse, resulting in complex structures for large plastic molds to be molded together; at the same time, there are many factors affecting large plastic molds, and high requirements for air tightness. Insufficient air tightness will lead to unsightly molding effects; and large plastic molds themselves are large in size and weight, and the installation, disassembly and transportation costs are high; in the later maintenance, the plastic mold is easy to stick to the material, and the maintenance cost of manual cleaning is high. When ultrasonic die-casting is used, the frequency, power and action time of the ultrasonic wave have a significant impact on the casting process. Improper parameter settings may cause defects such as pores in the casting, and the process parameter control is complex and the equipment investment is high. Summary of the invention

[0004] The purpose of the present invention is to provide a single-shot filling and sealing device to solve the problems of complex molds, inconvenient disassembly and high cost in the prior art of the sealing mechanism.

[0005] In order to achieve the above-mentioned object, the present invention provides a single-shot filling and sealing device, comprising a frame, a clamping device and a forming mold, wherein the clamping device is fixedly connected to the frame, the clamping device comprises a first assembly seat, a second assembly seat and a driving component, the driving component is fixedly connected to the frame, and the driving component is respectively connected to the first assembly seat and the second assembly seat in a transmission manner;

[0006] The molding die comprises a first die and a second die, the first die is fixedly connected to the first assembly seat, the second die is fixedly connected to the second assembly seat, the driving assembly drives the first assembly seat and the second assembly seat to move closer to or farther from each other so that the first die and the second die are molded or separated, the first die and the second die have relatively arranged parting surfaces, the parting surfaces are provided with a receiving groove for accommodating a single-unit casting tube, the parting surfaces are in contact with each other when the first die and the second die are molded so that the receiving groove forms a cavity, and the first die and the second die are also provided with a negative pressure channel connected to the receiving groove;

[0007] The frame is also provided with an avoidance channel, and the position of the cavity between the first mold and the second mold is relatively arranged in the avoidance channel. The avoidance channel is perpendicular to the closing direction of the first mold and the second mold, so that the secondary ejection tube can enter the cavity when the first mold and the second mold are separated.

[0008] Preferably, the first mold and the second mold also have a partition, and the partition is arranged in the accommodating groove. The partition divides the accommodating groove into a first chamber and a second chamber. The negative pressure channel is respectively connected with the first chamber and the second chamber. The first chamber has a notch for avoiding the secondary ejection pipe. When the first mold and the second mold are closed, the partition on the first mold contacts the partition on the second mold.

[0009] Preferably, the partition includes a base segment and a protruding segment connected to the base segment, and along the clamping direction of the first mold and the second mold, the size of the protruding segment is larger than that of the base segment, and the protruding segment is flush with the parting surface.

[0010] Preferably, the negative pressure channel includes a diverter hole, a pressure equalizing chamber and a negative pressure hole. There are multiple diverter holes. Each of the first chambers and each of the second chambers are connected to the pressure equalizing chamber through the diverter hole. The negative pressure hole is connected to the pressure equalizing chamber. The negative pressure hole is used for external negative pressure equipment.

[0011] Preferably, the parting surface of the first mold is provided with a positioning boss, and the parting surface of the second mold is provided with a positioning groove. The positioning boss is arranged opposite to the positioning boss along the closing direction of the first mold and the second mold, and the positioning boss is embedded in the positioning groove when the first mold and the second mold are closed.

[0012] Preferably, the frame is further provided with a guide shaft, the guide shaft extends along the clamping direction of the first mold and the second mold, and the first mold and the second mold are guided and assembled on the guide shaft.

[0013] Preferably, the frame includes a fixed seat and a lifting seat, the lifting seat is guided and assembled on the fixed seat along the vertical direction, the mold clamping device is fixedly connected to the lifting seat, the avoidance channel and the guide shaft are both arranged on the lifting seat, and the mold clamping direction of the first mold and the second mold, the lifting direction of the lifting seat, and the avoidance channel are perpendicular to each other.

[0014] Preferably, the fixed seat includes a bottom plate, a top plate and a lifting shaft, the bottom plate and the top plate are arranged parallel and spaced apart, the lifting shaft is connected between the bottom plate and the top plate, a positioning bolt is also connected to the top plate, the lifting seat guide is sleeved on the lifting shaft, and the positioning bolt is used to be fixedly connected to the lifting seat.

[0015] Preferably, the lifting seat includes a guide block and a lifting frame, the guide block is assembled on the lifting shaft, the lifting frame is fixedly connected to the guide block, the driving assembly is fixedly connected to the lifting frame, the avoidance channel and the guide shaft are both provided on the lifting frame, and the positioning bolt is fixedly connected to the lifting frame.

[0016] Compared with the prior art, the beneficial effect of a single-shot filling and sealing device in an embodiment of the present invention is that: the accommodating grooves on the first mold and the second mold of the molding mold are used to accommodate a single-joint single-shot tube. When the single-shot tube needs to be sealed, the single-shot tube enters the cavity between the first mold and the second mold through the avoidance channel. The driving component drives the first mold and the second mold to close the mold to seal the single-joint single-shot tube each time, so that the molding mold is miniaturized, the mold structure is simplified, and the installation, disassembly and transportation of the molding mold are convenient. When maintenance is required, the first mold and the second mold can be easily removed from the first assembly seat and the second assembly seat, thereby reducing the disassembly and maintenance costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a structural schematic diagram of the single-shot filling and tail sealing device of the present invention;

[0018] Figure 2 yes Figure 1 A top view of the single-shot filling and sealing device after the top plate of the frame is omitted;

[0019] Figure 3 yes Figure 2 A schematic diagram of the three-dimensional structure of a single-shot filling and sealing device;

[0020] Figure 4 It is a structural schematic diagram of the second mold of the single-shot filling and sealing device of the present invention;

[0021] Figure 5 yes Figure 4 A partial enlarged schematic diagram of the second mold at A;

[0022] Figure 6 yes Figure 4 a cross-sectional view of a second mold;

[0023] Figure 7 It is a structural schematic diagram of the first mold of the single-shot filling and sealing device of the present invention;

[0024] Figure 8 yes Figure 7 A cross-sectional view of the first mold.

[0025] In the figure, 1, frame, 11, avoidance channel, 12, guide shaft, 13, fixed seat, 131, bottom plate, 132, top plate, 133, lifting shaft, 134, positioning bolt, 14, lifting seat, 141, guide block, 142, lifting frame, 2, clamping device, 21, first assembly seat, 22, second assembly seat, 23, driving assembly, 231, clamping cylinder, 3, molding mold, 31, first mold, 311, positioning boss, 32, second mold, 321, positioning groove, 33, parting surface, 34, accommodating groove, 341, first chamber, 342, second chamber, 343, notch, 35, partition, 351, base section, 352, protruding section, 4, negative pressure channel, 41, diversion hole, 42, equalizing pressure chamber, 43, negative pressure hole. DETAILED DESCRIPTION

[0026] The specific implementation of the present invention is further described in detail below in conjunction with the accompanying drawings and examples. The following examples are used to illustrate the present invention, but are not intended to limit the scope of the present invention.

[0027] A preferred embodiment of a single-shot filling and sealing device of the present invention is as follows: Figures 1 to 8 As shown, the secondary throwing filling and sealing device includes a frame 1, a clamping device 2 and a molding die 3. The frame 1 is the supporting base of the secondary throwing filling and sealing device. The clamping device 2 is fixedly connected to the frame 1. The frame 1 supports the clamping device 2. The molding die 3 is fixedly assembled on the clamping device 2. The clamping device 2 is used to drive the molding die 3 to clamp and separate. The molding die 3 is used to encapsulate and mold the tail end of the coupled secondary throwing tube.

[0028] The mold clamping device 2 includes a first assembly seat 21, a second assembly seat 22 and a driving assembly 23, the driving assembly 23 is fixedly connected to the frame 1, and the driving assembly 23 is respectively connected to the first assembly seat 21 and the second assembly seat 22 in a transmission manner, and the driving assembly 23 is used to drive the first assembly seat 21 and the second assembly seat 22 to move closer to and away from each other, so as to drive the molding mold 3 on the first assembly seat 21 and the second assembly seat 22 to close or separate the molds. In this embodiment, the driving assembly 23 includes two mold clamping cylinders 231, the two mold clamping cylinders 231 are coaxial and spaced apart in the horizontal direction, and the first assembly seat 21 and the second assembly seat 22 correspond to the two mold clamping cylinders 231 one by one and are fixedly connected to the output shafts of the two mold clamping cylinders 231.

[0029] The molding mold 3 includes a first mold 31 and a second mold 32. The first mold 31 is fixedly connected to the first assembly seat 21, and the second mold 32 is fixedly connected to the second assembly seat 22. When the two clamping cylinders 231 drive the first assembly seat 21 and the second assembly seat 22 to approach each other, the first mold 31 and the second mold 32 are clamped. When the two clamping cylinders 231 drive the first assembly seat 21 and the second assembly seat 22 to move away from each other, the first mold 31 and the second mold 32 are separated.

[0030] The first mold 31 is a male mold, the second mold 32 is a female mold, and the opposite surface of the first mold 31 and the second mold 32 is a parting surface 33, so that the first mold 31 and the second mold 32 have a relatively set parting surface 33. A receiving groove 34 is provided on the parting surface 33, and the receiving groove 34 is used to accommodate a single-joint throwing tube. When the first mold 31 and the second mold 32 are molded, the parting surface 33 contacts, and the receiving groove 34 is combined to form a cavity, and the single-joint throwing tube can be processed into a required shape in the cavity. In this embodiment, the first mold 31 and the second mold 32 are both made of mold steel material. The size of the parting surface 33 of the first mold 31 is 87*24.5*20mm, and the size of the parting surface 33 of the second mold 32 is 87*20.45*19.9mm. While meeting the tail sealing operation requirements of the single-joint throwing tube, the overall volume is small, and it can be fixed on the first assembly seat 21 and the second assembly seat 22 by screws, which is convenient for disassembly and assembly.

[0031] The first mold 31 and the second mold 32 are also provided with a negative pressure channel 4, which is connected to the receiving groove 34 and is also used to connect to an external negative pressure device. The negative pressure device extracts air through the negative pressure channel 4 to form a negative pressure in the receiving groove 34. After the first mold 31 and the second mold 32 are closed, the cavity is a closed structure, and the single-joint casting tube is formed under the action of negative pressure to complete the tail sealing operation. Compared with the existing molding method, negative pressure molding has the advantages of uniform structural force and better overall aesthetics.

[0032] The frame 1 is also provided with an avoidance channel 11. The position of the cavity between the first mold 31 and the second mold 32 is in the avoidance channel 11. The avoidance channel 11 is perpendicular to the closing direction of the first mold 31 and the second mold 32. The avoidance channel 11 is used to avoid the single-joint secondary throw tube. When the single-joint secondary throw tube needs to be sealed, the secondary throw tube enters the gap between the first mold 31 and the second mold 32 through the avoidance channel 11. When the first mold 31 and the second mold 32 are closed, the secondary throw tube is just located at the position of the cavity, so that when the first mold 31 and the second mold 32 are closed, the secondary throw tube is covered in the cavity formed by the accommodating groove 34 to perform the sealing operation on the secondary throw tube.

[0033] The accommodating grooves 34 on the first mold 31 and the second mold 32 of the molding mold 3 of the single-shot filling and sealing device are used to accommodate a single-shot tube. When the single-shot tube needs to be sealed, the single-shot tube enters the cavity between the first mold 31 and the second mold 32 via the avoidance channel 11. The driving component 23 drives the first mold 31 and the second mold 32 to close the mold to seal the single-shot tube each time, so that the molding mold 3 is miniaturized, the mold structure is simplified, and the installation, disassembly and transportation of the molding mold 3 are convenient. When maintenance is required, the first mold 31 and the second mold 32 can be easily removed from the first assembly seat 21 and the second assembly seat 22, thereby reducing the disassembly and maintenance costs.

[0034] Preferably, the first mold 31 and the second mold 32 also have a partition 35, and the partition 35 is arranged in the accommodating groove 34. The partition 35 divides the accommodating groove 34 into a first chamber 341 and a second chamber 342. The negative pressure channel 4 is respectively connected with the first chamber 341 and the second chamber 342. The first chamber 341 has a notch 343 for avoiding the secondary ejection pipe. When the first mold 31 and the second mold 32 are molded together, the partition 35 on the first mold 31 contacts the partition 35 on the second mold.

[0035] The partition 35 on the first mold 31 and the second mold 32 divides the accommodating groove 34 into a first chamber 341 and a second chamber 342. In the cavity formed when the first mold 31 and the second mold 32 are molded together, the partition 35 on the first mold 31 contacts the partition 35 on the second mold, so that the first chamber 341 and the second chamber 342 are separated by the partition 35 and are relatively independent. The part of the single-link secondary ejection pipe located in the first chamber 341 and the part located in the second chamber 342 are disconnected from each other, and the liquid in the secondary ejection pipe is connected to the first chamber 341 and disconnected from the second chamber 342, which can increase the air tightness and ease of disassembly.

[0036] Preferably, the partition 35 includes a base segment 351 and a protruding segment 352 connected to the base segment 351 . Along the closing direction of the first mold 31 and the second mold 32 , the size of the protruding segment 352 is larger than that of the base segment 351 , and the protruding segment 352 is flush with the parting surface 33 .

[0037] The size of the protruding section 352 of the partition 35 is larger than the size of the base section 351. The contact of the partition 35 means that the protruding sections 352 are in contact with each other. The secondary throwing tube is separated at the contact part of the protruding sections 352 to form a through-hole structure, which is convenient for opening the secondary throwing tube when in use and also increases the overall aesthetics of the secondary throwing tube. In addition, the difference between the size of the protruding section 352 and the size of the base section 351 is the thickness of the secondary throwing tube at the sealing end.

[0038] Preferably, the negative pressure channel 4 includes a diverter hole 41, a pressure equalizing chamber 42 and a negative pressure hole 43. There are multiple diverter holes 41. Each first chamber 341 and each second chamber 342 is connected to the pressure equalizing chamber 42 through the diverter hole 41. The negative pressure hole 43 is connected to the pressure equalizing chamber 42. The negative pressure hole 43 is used for external negative pressure equipment.

[0039] The negative pressure channel 4 is formed by a diverter hole 41, a pressure equalizing chamber 42 and a negative pressure hole 43. The negative pressure hole 43 is used to connect with a negative pressure device, and the negative pressure device can extract the gas in the receiving tank 34 through the negative pressure hole 43, the pressure equalizing chamber 42 and the diverter hole 41 in sequence. During the gas extraction process, the pressure equalizing chamber 42 has the function of collecting and converging the gas, which can ensure the pressure balance of each diverter hole 41, thereby ensuring the consistency of the molding of each secondary throwing tube in the entire single-link secondary throwing tube, and good aesthetics.

[0040] Preferably, the parting surface 33 of the first mold 31 is provided with a positioning boss 311, and the parting surface 33 of the second mold 32 is provided with a positioning groove 321. The positioning boss 311 and the positioning boss 311 are arranged opposite to each other along the closing direction of the first mold 31 and the second mold 32. When the first mold 31 and the second mold 32 are closed, the positioning boss 311 is embedded in the positioning groove 321.

[0041] When the first mold 31 and the second mold 32 are closed, the positioning boss 311 is embedded in the positioning groove 321. The positioning boss 311 and the positioning groove 321 can ensure that the first mold 31 and the second mold 32 are in the same position each time they are closed, so that there is no gap on the parting surface 33, which increases the sealing of the cavity and ensures the structural aesthetics after negative pressure molding.

[0042] Preferably, the frame 1 is further provided with a guide shaft 12 , which extends along the mold closing direction of the first mold 31 and the second mold 32 , and the first mold 31 and the second mold 32 are guided and assembled on the guide shaft 12 .

[0043] The guide shaft 12 on the frame 1 guides the first mold 31 and the second mold 32 to ensure that the first mold 31 and the second mold 32 are closed along a set direction, thereby ensuring that there is no gap at the parting surface 33 when the first mold 31 and the second mold 32 are closed.

[0044] Preferably, the frame 1 includes a fixed seat 13 and a lifting seat 14, the lifting seat 14 is guided and assembled on the fixed seat 13 along the vertical direction, the clamping device 2 is fixedly connected to the lifting seat 14, the avoidance channel 11 and the guide shaft 12 are both arranged on the lifting seat 14, and the clamping direction of the first mold 31 and the second mold 32, the lifting direction of the lifting seat 14, and the avoidance channel 11 are perpendicular to each other.

[0045] The lifting seat 14 is guided and assembled on the fixed seat 13, and the mold clamping device 2 is arranged on the lifting seat 14. When the lifting seat 14 is lifted and lowered on the fixed seat 13, it can drive the mold clamping device 2 to rise and fall synchronously, that is, the lifting seat 14, the mold clamping man, the first mold 31 and the second mold 32 can be lifted and lowered synchronously, and the height of the first mold 31 and the second mold 32 can be adjusted to adapt to the tail sealing operation of different single-joint secondary throw tubes. The mold closing direction of the first mold 31 and the second mold 32, the lifting direction of the lifting seat 14, and the avoidance channel 11 are perpendicular to each other, so that the three operations of the first mold 31 and the second mold 32, the tail sealing operation adapted to different working conditions, and the secondary throw tube entering the cavity do not affect each other.

[0046] Preferably, the fixed seat 13 includes a bottom plate 131, a top plate 132 and a lifting shaft 133. The bottom plate 131 and the top plate 132 are arranged in parallel and spaced apart. The lifting shaft 133 is connected between the bottom plate 131 and the top plate 132. A positioning bolt 134 is also connected to the top plate 132. The lifting seat 14 guide sleeve is mounted on the lifting shaft 133, and the positioning bolt 134 is used to be fixedly connected to the lifting seat 14.

[0047] The fixing seat 13 formed by the bottom plate 131, the top plate 132 and the lifting shaft 133 is a frame structure as a whole, which ensures strength while reducing the weight of the fixing seat 13. The lifting shaft 133 has a guiding effect on the lifting seat 14, which can limit the lifting direction of the lifting seat 14 and increase the stability of the lifting seat 14 when it is lifted. A positioning bolt 134 is set on the top plate 132. When the positioning bolt 134 is rotated, the positioning bolt 134 can drive the lifting seat 14 to rise and fall along the lifting shaft 133 under the action of the threaded structure. The positioning bolt 134 plays a role in adjusting the height of the lifting seat 14.

[0048] Preferably, the lifting seat 14 includes a guide block 141 and a lifting frame 142, the guide block 141 is guided and assembled on the lifting shaft 133, the lifting frame 142 is fixedly connected to the guide block 141, the driving assembly 23 is fixedly connected to the lifting frame 142, the avoidance channel 11 and the guide shaft 12 are both arranged on the lifting frame 142, and the positioning bolt 134 is fixedly connected to the lifting frame 142.

[0049] The guide block 141 of the lifting seat 14 cooperates with the lifting shaft 133 to guide and increase the stability of the lifting seat 14 during lifting. The lifting frame 142 can reduce the total weight of the lifting seat 14 and also provide an assembly station for the drive assembly 23.

[0050] The working process of the present invention is as follows: when performing the tail sealing operation, the single-link secondary throwing tube passes through the avoidance channel 11 in the horizontal direction and enters between the first mold 31 and the second mold 32, and the two mold closing cylinders 231 work to drive the first assembly seat 21 and the second assembly seat 22 to approach each other, and the first mold 31 and the second mold 32 are closed to cover the heated packaging material in the mold cavity and extrude the packaging material. At the same time, the negative pressure device draws air through the negative pressure channel 4 to generate negative pressure in the mold cavity, and the packaging material is attached to the inner wall of the accommodating groove 34; after the packaging material is formed, the mold closing cylinder 231 drives the first assembly seat 21 and the second assembly seat 22 to move away from each other, and the first mold 31 and the second mold 32 are separated, the single-link secondary throwing tube is tail sealed, and the next group of single-link secondary throwing tubes are replaced for mold closing and tail sealing.

[0051] In summary, an embodiment of the present invention provides a single-shot filling and sealing device, in which the accommodating grooves on the first mold and the second mold of the molding mold are used to accommodate a single-shot tube. When the single-shot tube needs to be sealed, the single-shot tube enters the cavity between the first mold and the second mold through the avoidance channel, and the driving component drives the first mold and the second mold to close the mold to seal the single-shot tube each time, so that the molding mold is miniaturized, the mold structure is simplified, and the installation, disassembly and transportation of the molding mold are convenient. When maintenance is required, the first mold and the second mold can be easily removed from the first assembly seat and the second assembly seat, thereby reducing the disassembly and maintenance costs.

[0052] The above is only a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and substitutions can be made without departing from the technical principles of the present invention. These improvements and substitutions should also be regarded as the scope of protection of the present invention.

Claims

1. A single-shot filling and sealing device, characterized in that: The invention comprises a frame (1), a mold clamping device (2) and a molding die (3); the mold clamping device (2) is fixedly connected to the frame (1); the mold clamping device (2) comprises a first assembly seat (21), a second assembly seat (22) and a driving component (23); the driving component (23) is fixedly connected to the frame (1); and the driving component (23) is respectively connected to the first assembly seat (21) and the second assembly seat (22) in a transmission manner; The molding die (3) comprises a first die (31) and a second die (32); the first die (31) is fixedly connected to the first assembly seat (21); the second die (32) is fixedly connected to the second assembly seat (22); the driving component (23) drives the first assembly seat (21) and the second assembly seat (22) to move closer to or farther from each other so that the first die (31) and the second die (32) are molded or separated; the first die (31) and the second die (32) have parting surfaces (33) arranged opposite to each other; the parting surfaces (33) are provided with a receiving groove (34) for receiving a single-unit ejection tube; when the first die (31) and the second die (32) are molded together, the parting surfaces (33) are in contact so that the receiving groove (34) forms a cavity; the first die (31) and the second die (32) are also provided with a negative pressure channel (4) connected to the receiving groove (34); The frame (1) is also provided with an avoidance channel (11); the position of the cavity between the first mold (31) and the second mold (32) is arranged relative to the avoidance channel (11); the avoidance channel (11) is perpendicular to the mold closing direction of the first mold (31) and the second mold (32), so that the secondary ejection tube can enter the cavity when the first mold (31) and the second mold (32) are separated.

2. The single-shot filling and sealing device according to claim 1, characterized in that: The first mold (31) and the second mold (32) further have a partition (35), the partition (35) being arranged on the receiving groove (34), the partition (35) dividing the receiving groove (34) into a first chamber (341) and a second chamber (342), the negative pressure channel (4) being respectively connected with the first chamber (341) and the second chamber (342), the first chamber (341) having a notch (343) for avoiding a secondary ejection pipe, and the partition (35) on the first mold (31) contacts with the partition (35) on the second mold when the first mold (31) and the second mold (32) are molded together.

3. The single-shot filling and sealing device according to claim 2, characterized in that: The partition (35) comprises a base section (351) and a protruding section (352) connected to the base section (351); along the mold closing direction of the first mold (31) and the second mold (32), the size of the protruding section (352) is larger than the size of the base section (351), and the protruding section (352) is flush with the parting surface (33).

4. The single-shot filling and sealing device according to claim 2, characterized in that: The negative pressure channel (4) comprises a diverter hole (41), a pressure equalizing chamber (42) and a negative pressure hole (43). There are a plurality of diverter holes (41). Each of the first chambers (341) and each of the second chambers (342) are connected to the pressure equalizing chamber (42) through the diverter hole (41). The negative pressure hole (43) is connected to the pressure equalizing chamber (42). The negative pressure hole (43) is used for connecting an external negative pressure device.

5. The single-shot filling and sealing device according to any one of claims 1 to 4, characterized in that: The parting surface (33) of the first mold (31) is provided with a positioning boss (311), and the parting surface (33) of the second mold (32) is provided with a positioning groove (321). The positioning boss (311) and the positioning boss (311) are arranged opposite to each other along the mold closing direction of the first mold (31) and the second mold (32). When the first mold (31) and the second mold (32) are molded together, the positioning boss (311) is embedded in the positioning groove (321).

6. The single-shot filling and sealing device according to any one of claims 1 to 4, characterized in that: The frame (1) is also provided with a guide shaft (12), the guide shaft (12) extending along the mold closing direction of the first mold (31) and the second mold (32), and the first mold (31) and the second mold (32) are guided and assembled on the guide shaft (12).

7. The single-shot filling and sealing device according to claim 6, characterized in that: The frame (1) comprises a fixed seat (13) and a lifting seat (14); the lifting seat (14) is assembled on the fixed seat (13) along a vertical guide direction; the mold clamping device (2) is fixedly connected to the lifting seat (14); the avoidance channel (11) and the guide shaft (12) are both arranged on the lifting seat (14); the mold clamping direction of the first mold (31) and the second mold (32), the lifting direction of the lifting seat (14), and the avoidance channel (11) are perpendicular to each other.

8. The single-shot filling and sealing device according to claim 7, characterized in that: The fixed seat (13) comprises a bottom plate (131), a top plate (132) and a lifting shaft (133); the bottom plate (131) and the top plate (132) are arranged in parallel and spaced apart; the lifting shaft (133) is connected between the bottom plate (131) and the top plate (132); a positioning bolt (134) is also connected to the top plate (132); the lifting seat (14) is guided and sleeved on the lifting shaft (133); and the positioning bolt (134) is used for being fixedly connected to the lifting seat (14).

9. The single-shot filling and sealing device according to claim 8, characterized in that: The lifting seat (14) comprises a guide block (141) and a lifting frame (142); the guide block (141) is guided and assembled on the lifting shaft (133); the lifting frame (142) is fixedly connected to the guide block (141); the driving assembly (23) is fixedly connected to the lifting frame (142); the avoidance channel (11) and the guide shaft (12) are both arranged on the lifting frame (142); and the positioning bolt (134) is fixedly connected to the lifting frame (142).

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