Toothbrush head production device

Abstract

The utility model relates to the technical field of toothbrush production appliances, in particular to a toothbrush head production device. According to the toothbrush head production device, a brush head cavity is jointly defined by a first mold cavity of a first mold assembly and a second mold cavity of a second mold assembly, a mounting table is arranged in the first mold cavity, an air channel is formed in the first mold assembly, one end of the air channel is exposed out of the table top of the mounting table to define an air channel opening, and the other end of the air channel is exposed out of the first mold assembly to define a detection opening. The detection device is connected with the detection port, and the detection device extracts air in the air channel from the detection port, so that when the balancing weight is placed on the mounting table, negative pressure is formed in the air channel. The detection device detects the negative pressure value in the air channel so as to detect whether the balancing weight is accurately placed on the mounting table or not. When the balancing weight is placed accurately, the first mold assembly and the second mold assembly are controlled by the control assembly to perform mold closing so as to perform subsequent injection molding production, so that the balancing weight in the toothbrush head is prevented from dislocation, and the yield of toothbrush head products is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of toothbrush production appliances, in particular to a toothbrush head production device. Background Art

[0002] An electric toothbrush uses high-frequency vibrations in its brush head to achieve efficient cleaning. Because the brush head is primarily made of plastic and is relatively lightweight, the counterweight of the brush head struggles to match the motor's vibration frequency, leading to unstable brush head movement. Existing electric toothbrushes typically incorporate a counterweight within the brush head to adjust the weight and overcome this unstable brush head movement.

[0003] Most existing production methods directly add a counterweight placement area to the brush head mold cavity, place the counterweight in the placement area, and then directly close the mold for injection molding. This method makes it difficult to ensure the accuracy of the counterweight placement and the yield of the brush head product. Utility Model Content

[0004] The technical problem to be solved by the embodiments of the present utility model is to provide a toothbrush head production device to solve the problem in the prior art that the accuracy of the placement of the counterweight block cannot be guaranteed.

[0005] The toothbrush head production device provided by the embodiment of the present invention includes: a toothbrush head mold, which includes a first mold assembly and a second mold assembly, the first mold assembly is provided with a first mold cavity, the second mold assembly is provided with a second mold cavity, the first mold cavity and the second mold cavity jointly define a brush head cavity, the first mold cavity is provided with a mounting table, the mounting table is used to place a counterweight block, an air duct is provided in the first mold assembly, one end of the air duct is exposed on the table top of the mounting table to define an air duct opening, and the other end is exposed in the first mold assembly to define a detection port; a detection device, which is connected to the detection port, the detection device is used to form a negative pressure in the air duct and to feedback negative pressure parameters; a control component, which is connected to the first mold assembly and\or the second mold assembly, the control component is used to control the mold closing of the first mold assembly and the second mold assembly.

[0006] Optionally, two air ducts are provided, and two air duct openings and two detection openings are provided correspondingly, and the two air duct openings are respectively provided on both sides of the mounting platform.

[0007] Optionally, the mounting platform is provided with a positioning protrusion, the counterweight block is provided with a first positioning groove, and the positioning protrusion is used to be plugged into the first positioning groove.

[0008] Optionally, the first mold assembly includes a first mounting seat and a first mold core, the first mold cavity is provided in the first mold core, the first mounting seat is provided with a first mounting groove, and the first mold core is detachably installed in the first mounting groove.

[0009] Optionally, the detection port is arranged on the side wall of the first mounting seat, and the air channel includes a first sub-air channel and a second sub-air channel, the first sub-air channel is arranged in the first mounting seat, the second sub-air channel is arranged in the first mold core, and the first sub-air channel is connected to the second sub-air channel; the first mold assembly also includes a sealing ring, the sealing ring is clamped between the first mounting seat and the first mold core, and the sealing ring is arranged around the connecting position of the first sub-air channel and the second sub-air channel.

[0010] Optionally, the toothbrush head production device also includes a lifting member and a lifting drive assembly. A lifting cavity is provided in the first mold assembly, the lifting cavity is communicated with the first mold cavity, and a lifting opening is defined in the first mold cavity. The lifting drive assembly drives the lifting member to rise and fall along the lifting cavity so that the lifting member rises out of or retracts into the lifting opening.

[0011] Optionally, the jacking drive assembly includes a jacking plate and a guide rod, the guide rod is connected to the first mold assembly, the jacking plate is movably arranged on the guide rod, the jacking piece is connected to the jacking plate, and the jacking drive assembly is connected to the jacking piece through the jacking plate.

[0012] Optionally, the jacking drive assembly further includes an elastic reset member, which is sleeved on the guide rod and clamped between the jacking plate and the first mold assembly.

[0013] Optionally, a cooling device is further included; a first cooling channel is provided in the first mold assembly, the first cooling channel is defined with a first connection port on the surface of the first mold assembly, the cooling device is connected to the first connection port, and a cooling medium is transported in the first cooling channel in the past; and / or a second cooling channel is provided in the second mold assembly, the second cooling channel is defined with a second connection port on the surface of the second mold assembly, the cooling device is connected to the second connection port, and a cooling medium is transported in the second cooling channel in the past.

[0014] Optionally, the second mold assembly includes a second mounting seat and a second mold core, the second mold cavity is provided in the second mold core, the second mounting seat is provided with a second mounting groove, the second mold core is detachably installed in the second mounting groove, one of the second mold core and the first mold core is provided with a positioning boss, and the other is provided with a second positioning groove, and the positioning boss is inserted into the second positioning groove.

[0015] Compared with the prior art, the toothbrush head production device provided by the embodiment of the present invention has the following beneficial effects: the toothbrush head production device of the present invention defines a brush head cavity through the first mold cavity of the first mold assembly and the second mold cavity of the second mold assembly, and a mounting table is provided in the first mold cavity. The first mold assembly is provided with an airway, one end of the airway is exposed to the table surface of the mounting table to define an airway opening, and the other end is exposed to the first mold assembly to define a detection port. A detection device is connected to the detection port and can extract air from the airway through the detection port. Thus, when the counterweight is placed on the mounting table, a negative pressure can be formed inside the airway. The detection device can detect the negative pressure value in the airway, thereby detecting whether the counterweight is accurately placed on the mounting table. Only when the counterweight is accurately placed, the control component controls the first mold assembly and the second mold assembly to close the mold for subsequent injection molding production, thereby ensuring that the counterweight in the toothbrush head will not be misaligned, thereby improving the yield rate of the toothbrush head product. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The specific implementation of the present invention will be further described in detail below with reference to the accompanying drawings and embodiments, in which:

[0017] Figure 1 This is a three-dimensional schematic diagram of a toothbrush head mold and a lifting drive assembly provided by an embodiment of the present utility model;

[0018] Figure 2 It is a three-dimensional schematic diagram of the second mold assembly provided by an embodiment of the present utility model;

[0019] Figure 3 It is a three-dimensional schematic diagram of the first mold assembly, the lifting member and the lifting drive assembly provided by an embodiment of the present utility model;

[0020] Figure 4 yes Figure 3 A partial enlarged schematic diagram of the middle A position;

[0021] Figure 5 It is a cross-sectional view of the first mold assembly and the jacking drive assembly provided by an embodiment of the present utility model;

[0022] Figure 6 yes Figure 5 A partial enlarged schematic diagram of the middle B position;

[0023] Figure 7 It is a three-dimensional schematic diagram of the first mold assembly provided by an embodiment of the present utility model;

[0024] Figure 8 This is another cross-sectional view of the first mold assembly and the jacking drive assembly provided by an embodiment of the present utility model;

[0025] Figure 9 It is a cross-sectional view of the second mold assembly provided by an embodiment of the present utility model.

[0026] The reference numerals in the figures are:

[0027] 1. Toothbrush head mold; 11. First mold assembly; 111. First mold core; 1111. First mold cavity; 1112. Mounting platform; 1112a. Airway opening; 1112b. Positioning protrusion; 1113. Second positioning groove; 112. Airway; 1121. First sub-airway; 1122. Second sub-airway; 113. First mounting seat; 1131. First mounting groove; 1132. Detection port; 1133. Sealing ring; 1134. First connection port ;114, lifting cavity;115, third mounting seat;116, lifting groove;117, first cooling channel;12, second mold assembly;121, second mold core;1211, second mold cavity;1212, positioning boss;122, second mounting seat;1221, second mounting groove;1222, second connecting port;123, second cooling channel;3, lifting member;4, lifting drive assembly;41, lifting plate;42, guide rod;43, elastic reset member. DETAILED DESCRIPTION

[0028] It should be noted that, in the absence of conflict, the embodiments and features of the embodiments in this application can be combined with each other. Now, in conjunction with the accompanying drawings, a detailed description of the preferred embodiments of the present utility model will be given.

[0029] The present invention provides a toothbrush head production device. Figures 1 to 9 As shown, the toothbrush head production device includes a toothbrush head mold 1, a detection device (not shown) and a control component (not shown). Among them, the toothbrush head mold 1 includes a first mold assembly 11 and a second mold assembly 12. The first mold assembly 11 is provided with a first mold cavity 1111, and the second mold assembly 12 is provided with a second mold cavity 1211. The first mold cavity 1111 and the second mold cavity 1211 jointly define a brush head cavity (not shown in the figure). A mounting platform 1112 is provided in the first mold cavity 1111, and the mounting platform 1112 is used to place a counterweight block. An air duct 112 is provided in the first mold assembly 11, and one end of the air duct 112 is exposed on the table surface of the mounting platform 1112 to define an air duct port 1112a, and the other end is exposed in the first mold assembly 11 to define a detection port 1132; a detection device is connected to the detection port 1132, and the detection device is used to form a negative pressure in the air duct 112 and to feedback negative pressure parameters; a control component is connected to the first mold assembly 11 and\or the second mold assembly 12, and the control component is used to control the mold closing of the first mold assembly 11 and the second mold assembly 12.

[0030] Specifically, the toothbrush head mold 1 defines a brush head cavity through a first mold cavity 1111 and a second mold cavity 1211. A mounting platform 1112 is provided in the first mold cavity 1111. An air channel 112 is provided in the first mold assembly 11. One end of the air channel 112 is exposed on the surface of the mounting platform 1112 to define an air channel opening 1112a, and the other end is exposed in the first mold assembly 11 to define a detection port 1132. A detection device is connected to the detection port 1132, and the detection device can extract air from the air channel 112 through the detection port 1132. As a result, when the counterweight is placed on the mounting platform 1112, a negative pressure can be formed inside the air channel 112. The negative pressure formed inside the airway 112 can, on the one hand, generate suction at the airway opening 1112a, allowing the mounting platform 1112 to absorb the counterweight and prevent it from shifting. On the other hand, the detection device can detect the negative pressure value within the airway 112, thereby detecting whether the counterweight is accurately placed on the mounting platform 1112. Only when the detection device detects that the counterweight is accurately placed will the control component control the first mold assembly 11 and the second mold assembly 12 to close the mold and proceed with subsequent injection molding production, thereby ensuring that the counterweight in the produced toothbrush head will not be misplaced, thereby improving the yield rate of the toothbrush head product.

[0031] More specifically, the control method for controlling the mold closing of the first mold assembly 11 and the second mold assembly 12 can be automated control or manual control. In the automated control method, the control component is electrically connected to the detection device, and the detection device can feed back the detected negative pressure value of the airway 112 to the control component, so that the control component can automatically control the mold closing of the first mold assembly 11 and the second mold assembly 12 based on the negative pressure value.

[0032] It is understood that, whether it is automated control or manual control, the control component can be connected to both the first mold assembly 11 and the second mold assembly 12, so that the control component can control the first mold assembly 11 and the second mold assembly 12 to move closer to each other, thereby achieving the closing of the first mold assembly 11 and the second mold assembly 12. Alternatively, the control component can be connected to only one of the first mold assembly 11 and the second mold assembly 12. For example, the control component can be connected to the second mold assembly 12, thereby controlling the second mold assembly 12 to move toward the first mold assembly 1, thereby achieving the closing of the first mold assembly 11 and the second mold assembly 12.

[0033] It should be noted that the detection device is provided with a display module that can display the negative pressure value detected by the detection device, so that the operator can determine whether the counterweight is placed accurately and adjust the position of the counterweight if it is not placed accurately. In addition, the detection device can also be provided with a warning horn or a warning light. When the negative pressure value of the airway 112 detected by the detection device is unqualified, the detection device can emit a warning sound or illuminate a warning light to remind the operator that the counterweight is not placed accurately.

[0034] It is worth mentioning that the first mold assembly 11 can be provided with a plurality of first mold cavities 1111, and the second mold assembly 12 can be provided with a plurality of second mold cavities 1211 accordingly, so that the plurality of first mold cavities 1111 and the plurality of second mold cavities 1211 can jointly define a plurality of brush head cavities, so that after the first mold assembly 11 and the second mold assembly 12 are combined, the toothbrush head production device can simultaneously perform injection molding production in a plurality of brush head cavities, thereby improving the production efficiency of the toothbrush heads.

[0035] Furthermore, as a specific implementation in some embodiments of the present invention, Figures 3 to 6 As shown, there are two air ducts 112 , and two air duct openings 1112 a and two detection openings 1132 are correspondingly provided. The two air duct openings 1112 a are respectively provided on both sides of the mounting platform 1112 .

[0036] Specifically, by implementing this embodiment, when the counterweight is placed on the mounting platform 1112, the detection device can perform negative pressure detection on both sides of the counterweight, thereby more accurately and effectively detecting the placement position of the counterweight.

[0037] As a specific implementation in some embodiments of the present invention, Figure 4 and Figure 6 As shown, the mounting platform 1112 is provided with a positioning protrusion 1112b, and the counterweight block is provided with a first positioning groove, and the positioning protrusion 1112b is used to be inserted into the first positioning groove.

[0038] Specifically, the mounting platform 1112 is provided with a positioning protrusion 1112b, and the counterweight block is provided with a first positioning groove. Therefore, when the counterweight block is placed, the positioning protrusion 1112b can be inserted into the first positioning groove, so that the counterweight block can be accurately placed on the mounting platform 1112, while preventing the counterweight block from shifting during the subsequent production process.

[0039] As a specific implementation in some embodiments of the present invention, Figure 1 、 Figure 3 and Figure 7 As shown, the first mold assembly 11 includes a first mounting seat 113 and a first mold core 111 , a first mold cavity 1111 is provided in the first mold core 111 , the first mounting seat 113 is provided with a first mounting groove 1131 , and the first mold core 111 is detachably installed in the first mounting groove 1131 .

[0040] Specifically, the first mold cavity 1111 is provided in the first mold core 111, the first mounting seat 113 is provided with a first mounting groove 1131, and the first mold core 111 is detachably installed in the first mounting groove 1131, so that when the first mold core 111 is damaged, the first mold core 111 can be easily replaced without replacing the entire first mold assembly 11.

[0041] As a specific implementation in some embodiments of the present invention, Figure 5 、 Figure 6 and Figure 7 As shown, the detection port 1132 is arranged on the side wall of the first mounting seat 113, and the air channel 112 includes a first sub-air channel 1121 and a second sub-air channel 1122. The first sub-air channel 1121 is arranged in the first mounting seat 113, and the second sub-air channel 1122 is arranged in the first mold core 111. The first sub-air channel 1121 is connected to the second sub-air channel 1122; the first mold assembly 11 also includes a sealing ring 1134, which is clamped between the first mounting seat 113 and the first mold core 111, and the sealing ring 1134 is arranged around the connecting position between the first sub-air channel 1121 and the second sub-air channel 1122.

[0042] Specifically, the air channel 112 includes a first sub-air channel 1121 and a second sub-air channel 1122, and the first sub-air channel 1121 is disposed within the first mounting seat 113, and the second sub-air channel 1122 is disposed within the first mold core 111. Thus, when the first mold core 111 is mounted within the first mounting groove 1131, the first sub-air channel 1121 and the second sub-air channel 1122 can communicate within the first mounting groove 1131, facilitating detection by the detection device. Furthermore, a sealing ring 1134 is sandwiched between the first mounting seat 113 and the first mold core 111, and the sealing ring 1134 surrounds the connection position between the first sub-air channel 1121 and the second sub-air channel 1122. This ensures that no gap will appear when the first sub-air channel 1121 and the second sub-air channel 1122 are connected, thereby ensuring the sealing of the air channel 112 and thereby ensuring the accuracy and reliability of the detection results of the detection device.

[0043] As a specific implementation in some embodiments of the present invention, Figure 5 and Figure 6 As shown, the toothbrush head production device also includes a lifting member 3 and a lifting drive assembly 4. A lifting cavity 114 is provided in the first mold assembly 11. The lifting cavity 114 is communicated with the first mold cavity 1111, and a lifting opening (not shown) is defined in the first mold cavity 1111. The lifting drive assembly 4 drives the lifting member 3 to rise and fall along the lifting cavity 114 to make the lifting member 3 rise out of or retract into the lifting opening.

[0044] Specifically, by implementing this embodiment, after the toothbrush head is injection molded, the control component controls the first mold assembly 11 and the second mold assembly 12 to open the mold. During the mold opening process, the lifting drive component 4 can drive the lifting part 3 to lift along the lifting cavity 114 and out of the lifting port, thereby pushing the toothbrush head out of the first mold cavity 1111, so that the toothbrush head can be smoothly demolded.

[0045] Furthermore, as a specific implementation in some embodiments of the present invention, Figure 5 and Figure 6As shown, the jacking drive assembly 4 includes a jacking plate 41 and a guide rod 42, the guide rod 42 is connected to the first mold assembly 11, the jacking plate 41 is movably arranged on the guide rod 42, the jacking member 3 is connected to the jacking plate 41, and the jacking drive assembly 4 is connected to the jacking member 3 through the jacking plate 41.

[0046] Specifically, the guide rod 42 is connected to the first mold assembly 11, the lifting plate 41 is movably arranged on the guide rod 42, the lifting member 3 is connected to the lifting plate 41, and the guide rod 42 can guide the lifting plate 41 so that the lifting plate 41 can be lifted and lowered along the guide rod 42, thereby driving the lifting member 3 to lift and lower along the lifting cavity 114.

[0047] More specifically, if Figure 5 and Figure 6 As shown, the toothbrush head production device also includes a third mounting seat 115. The side of the first mold assembly 11 away from the second mold assembly 12 is mounted on the third mounting seat 115. A lifting groove 116 is defined between the third mounting seat 115 and the first mold assembly 11. The guide rod 42 is located in the lifting groove 116, and the two ends of the guide rod 42 are respectively connected to the second mounting seat 122 and the first mold assembly 11, thereby increasing the stability of the lifting drive assembly 4 structure and preventing the lifting plate 41 from separating from the guide rod 42. In addition, by implementing this embodiment, the movement path of the lifting plate 41 can be limited between the third mounting seat 115 and the first mold assembly 11, thereby achieving control of the lifting height of the lifting member 3.

[0048] Furthermore, as a specific implementation in some embodiments of the present invention, Figure 5 and Figure 6 As shown, the jacking drive assembly 4 further includes an elastic reset member 43 , which is sleeved on the guide rod 42 and clamped between the jacking plate 41 and the first mold assembly 11 .

[0049] Specifically, the elastic return member 43 is sleeved on the guide rod 42 and is sandwiched between the lifting plate 41 and the first mold assembly 11. Therefore, when the lifting plate 41 is lifted along the guide rod 42, the elastic return member 43 is compressed toward the first mold assembly 11 under the action of the lifting plate 41. When the toothbrush head is successfully demolded, the elastic return member 43 can drive the lifting plate 41 to reset, thereby retracting the lifting member 3 into the lifting cavity 114.

[0050] As a specific implementation in some embodiments of the present invention, Figure 8 As shown, a cooling device (not shown) is also included. A first cooling channel 117 is provided in the first mold assembly 11. The first cooling channel 117 is defined with a first connecting port 1135 on the surface of the first mold assembly 11. The cooling device is connected to the first connecting port 1135, and the cooling medium is transported in the first cooling channel 117.

[0051] Specifically, since the first cooling channel 117 is located on one side of the bottom of the first mold cavity 1111, the cooling medium can be closer to the injection liquid in the first mold cavity 1111, achieving a better cooling effect. In addition, two first connection ports 1135 are provided on the surface of the first mold assembly 11, one of which is an input port and the other is an output port. The cooling device is connected to the input port and the output port respectively, and inputs the cooling medium into the first cooling channel 117 through the input port, receives the heated cooling medium through the output port, cools it using the internal cooling mechanism, and then inputs it into the cooling channel 1113 from the input port, thereby continuously circulating and cooling the injection liquid in the mold, so that the toothbrush head can be quickly formed, thereby improving production efficiency.

[0052] It is worth mentioning that Figure 9 As shown, a second cooling channel 123 can also be provided in the second mold assembly 12, so that the cooling device can simultaneously transport cooling medium to the first cooling channel 117 and the second cooling channel 123, thereby cooling the injection molding liquid in the first mold cavity 1111 and the second mold cavity 1211 at the same time, which can not only enable the toothbrush head to be quickly molded, but also ensure that the injection molding liquid in the entire brush head cavity is cooled more evenly, which helps to reduce possible defects in the finished toothbrush head and improve the consistency and quality of the product.

[0053] It should be noted that, in other embodiments, the second cooling channel 123 may be provided only in the second mold assembly 12, and the second cooling channel 123 may define a second connection port 1222 on the surface of the second mold assembly 12, and the cooling device may be connected to the second connection port 1222 to transport the cooling medium into the second cooling channel 123 through the cooling device, thereby also cooling the injection liquid in the mold.

[0054] As a specific implementation in some embodiments of the present invention, Figure 2 and Figure 9 As shown, the second mold assembly 12 includes a second mounting seat 122 and a second mold core 121, the second mold cavity 1211 is provided on the second mold core 121, the second mounting seat 122 is provided with a second mounting groove 1221, the second mold core 121 is detachably installed in the second mounting groove 1221, one of the second mold core 121 and the first mold core 111 is provided with a positioning boss 1212, and the other is provided with a second positioning groove 1113, and the positioning boss 1212 is inserted into the second positioning groove 1113.

[0055] Specifically, the second mold cavity 1211 is provided in the second mold core 121, and the second mounting seat 122 is provided with a second mounting groove 1221. The second mold core 121 is detachably mounted in the second mounting groove 1221, so that when the second mold core 121 is damaged, the second mold core 121 can be easily replaced without replacing the entire second mold assembly 12. In addition, one of the second mold core 121 and the first mold core 111 is provided with a positioning boss 1212, and the other is provided with a second positioning groove 1113. Therefore, when the second mold core 121 and the first mold core 111 are molded together, the positioning boss 1212 can be inserted into the second positioning groove 1113, so that the second mold core 121 and the first mold core 111 are stably connected, effectively preventing the second mold core 121 and the first mold core 111 from separating during the injection molding process.

[0056] It should be understood that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Those skilled in the art may modify the technical solutions described in the above embodiments, or replace some of the technical features therein with equivalents; and all these modifications and replacements should fall within the scope of protection of the claims attached to the present invention.

Claims

1. A toothbrush head production device, characterized in that: include: A toothbrush head mold, comprising a first mold assembly and a second mold assembly, wherein the first mold assembly is provided with a first mold cavity, the second mold assembly is provided with a second mold cavity, the first mold cavity and the second mold cavity jointly defining a brush head cavity, a mounting platform being provided in the first mold cavity, the mounting platform being used to place a counterweight, an airway being provided in the first mold assembly, one end of the airway being exposed from a surface of the mounting platform to define an airway opening, and the other end being exposed from the first mold assembly to define a detection opening; a detection device connected to the detection port, the detection device being used to form a negative pressure in the airway and to feed back negative pressure parameters; A control component is connected to the first mold assembly and / or the second mold assembly, and the control component is used to control the first mold assembly and the second mold assembly to close the mold.

2. The toothbrush head production device according to claim 1, characterized in that: There are two air passages, two air passage openings and two detection openings are correspondingly provided, and the two air passage openings are respectively arranged on both sides of the mounting platform.

3. The toothbrush head production device according to claim 1, characterized in that: The mounting platform is provided with a positioning protrusion, the counterweight block is provided with a first positioning groove, and the positioning protrusion is used to be plugged into the first positioning groove.

4. The toothbrush head production device according to claim 1, characterized in that: The first mold assembly includes a first mounting seat and a first mold core. The first mold cavity is provided in the first mold core. The first mounting seat is provided with a first mounting groove. The first mold core is detachably mounted in the first mounting groove.

5. The toothbrush head production device according to claim 4, characterized in that: The detection port is arranged on the side wall of the first mounting seat, and the air channel includes a first sub-air channel and a second sub-air channel. The first sub-air channel is arranged in the first mounting seat, and the second sub-air channel is arranged in the first mold core, and the first sub-air channel is connected to the second sub-air channel; the first mold assembly also includes a sealing ring, which is clamped between the first mounting seat and the first mold core, and the sealing ring is arranged around the connecting position of the first sub-air channel and the second sub-air channel.

6. The toothbrush head production device according to claim 1, characterized in that: The toothbrush head production device also includes a lifting member and a lifting drive assembly. A lifting cavity is provided in the first mold assembly, the lifting cavity is communicated with the first mold cavity, and a lifting opening is defined in the first mold cavity. The lifting drive assembly drives the lifting member to rise and fall along the lifting cavity so that the lifting member rises out of or retracts into the lifting opening.

7. The toothbrush head production device according to claim 6, characterized in that: The jacking drive assembly includes a jacking plate and a guide rod, the guide rod is connected to the first mold assembly, the jacking plate is movably arranged on the guide rod, the jacking piece is connected to the jacking plate, and the jacking drive assembly is connected to the jacking piece through the jacking plate.

8. The toothbrush head production device according to claim 7, characterized in that: The jacking drive assembly further includes an elastic reset member, which is sleeved on the guide rod and clamped between the jacking plate and the first mold assembly.

9. The toothbrush head production device according to any one of claims 1 to 8, characterized in that: It also includes a cooling device, wherein a first cooling channel is provided in the first mold assembly, the first cooling channel is defined with a first connection port on the surface of the first mold assembly, the cooling device is connected to the first connection port, and a cooling medium is transported in the first cooling channel in the past; and / or a second cooling channel is provided in the second mold assembly, the second cooling channel is defined with a second connection port on the surface of the second mold assembly, the cooling device is connected to the second connection port, and a cooling medium is transported in the second cooling channel in the past.

10. The toothbrush head production device according to any one of claims 4-5, characterized in that: The second mold assembly includes a second mounting seat and a second mold core, the second mold cavity is provided in the second mold core, the second mounting seat is provided with a second mounting groove, the second mold core is detachably installed in the second mounting groove, one of the second mold core and the first mold core is provided with a positioning boss, and the other is provided with a second positioning groove, and the positioning boss is inserted into the second positioning groove.

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