Hose shoulder injection device and hose shoulder forming equipment

Abstract

The present invention discloses a hose shoulder injection device and a hose shoulder forming device. The hose shoulder forming device includes a hose shoulder injection device, which includes a frame and an opening and closing mechanism and a pushing mechanism connected to the frame. The frame is provided with a material seat, the material seat is provided with at least one melt glue channel, the melt glue channel is provided with a discharge port, the opening and closing mechanism can open or close the discharge port, the pushing mechanism includes a pushing plate and a first driver, the pushing plate is provided with a avoidance port corresponding to the discharge port, the first driver is connected to the pushing plate and can drive the pushing plate to move, the pushing plate can be moved to make the avoidance port dock with the discharge port, so that the melt glue in the melt glue channel is output from the discharge port to the pushing plate, and the pushing plate can be moved to make the melt glue on the pushing plate be sleeved on the core rod. The present invention has a simple and reasonable structure, and the melt glue output from the discharge port is pushed and sleeved on the core rod by the pushing plate, which is conducive to improving the yield rate and facilitating production application.

Description

Technical Field

[0001] The invention relates to the technical field of production equipment, in particular to a hose shoulder injection device and hose shoulder forming equipment. Background Art

[0002] Existing hose shoulder processing typically involves using a shoulder injection device to spray molten adhesive onto a core rod mold. The sprayed molten adhesive is then placed over the core rod and, along with the tubing on the core rod, undergoes extrusion, shaping, and cooling processes, where the molten adhesive solidifies to form the hose shoulder. Existing molten adhesive delivery typically involves spraying, but this method presents a significant challenge: its high production environment requirements. When the molten adhesive is ejected from the shoulder injection device, it is easily affected by external airflow, causing it to spray inaccurately or unevenly. This results in uneven distribution of the molten adhesive on the core rod, which can easily lead to defective products. Therefore, airflow conditions in the production environment must be strictly controlled, which imposes high production requirements and is not suitable for production applications. Summary of the Invention

[0003] The present invention aims to solve at least one of the technical problems existing in the prior art. To this end, the present invention provides a hose shouldering device. By providing a pusher plate, the molten glue in the glue channel can be discharged from the discharge port to the pusher plate. The pusher plate is then moved so that the molten glue on the glue channel can be sleeved onto the mandrel. The simple structure helps prevent external airflow from affecting the output of the molten glue to the mandrel, facilitates the uniform distribution of the molten glue on the mandrel, improves the yield rate, and facilitates production applications.

[0004] The present invention also provides a hose shoulder forming device having the hose shoulder injection device.

[0005] According to the first aspect of the present invention, the hose shoulder injection device described in the embodiment includes a frame and an opening and closing mechanism and a pushing mechanism connected to the frame. The frame is provided with a material seat, the material seat is provided with at least one melt glue channel, the melt glue channel is provided with a discharge port, the opening and closing mechanism can open or close the discharge port, the pushing mechanism includes a pushing plate and a first driver, the pushing plate is provided with a avoidance port corresponding to the discharge port, the first driver is connected to the pushing plate and can drive the pushing plate to move relative to the material seat, the pushing plate can be moved to make the avoidance port dock with the discharge port, so that the melt glue in the melt glue channel is output from the discharge port to the pushing plate, and the pushing plate can be moved to make the melt glue on the pushing plate sleeve be set on the core rod.

[0006] The hose shoulder injection device according to the embodiment of the present invention has at least the following beneficial effects: when in use, the molten glue is transported to the molten glue channel of the material holder, and the discharge port is opened or closed by the opening and closing mechanism, thereby controlling the output of the molten glue or stopping the output, by setting a push plate and setting a avoidance port on the push plate, the first driver drives the push plate to move, the push plate moves to make the avoidance port dock with the discharge port, the opening and closing mechanism opens the discharge port, and the molten glue in the molten glue channel is output from the discharge port to the push plate, and then the opening and closing mechanism closes the discharge port, and the push plate moves to make the molten glue on it be sleeved on the core rod, thereby realizing the output of the molten glue to the core rod. The present invention has a simple and reasonable structure, and pushes the molten glue output from the discharge port to be sleeved on the core rod by the push plate, which is beneficial to avoid the influence of external environmental airflow on the output of the molten glue to the core rod, reduces the requirements for the production environment, facilitates the uniform distribution of the molten glue on the core rod, and is beneficial to improve the yield rate and facilitates production application.

[0007] According to some embodiments of the present invention, a protrusion is provided on the lower side of the material holder, and the discharge port is arranged on the protrusion. The protrusion can pass through the push plate through the avoidance port and make the discharge port located on the lower side of the push plate.

[0008] According to some embodiments of the present invention, the pusher plate is provided with a cooling channel for cooling fluid to enter.

[0009] According to some embodiments of the present invention, the opening and closing mechanism includes a moving rod and a driving assembly, the moving rod is movably inserted in the melt channel, the driving assembly is drivingly connected to the moving rod and can drive the moving rod to move relative to the material seat, and the moving rod has a first plug portion that can block the discharge port.

[0010] According to some embodiments of the present invention, the material holder is provided with a feed channel, the movable rod is provided with a second plug portion, a narrow mouth portion is provided in the melt glue channel, the melt glue channel includes a first channel section and a second channel section, the narrow mouth portion is located between the first channel section and the second channel section, the feed channel is connected to the first channel section, the discharge port is connected to the second channel section, and the second plug portion can cooperate with the narrow mouth portion to disconnect the first channel section and the second channel section.

[0011] According to some embodiments of the present invention, the drive assembly includes a second driver, an eccentric wheel and a movable frame, the second driver is drivingly connected to the eccentric wheel, the eccentric wheel is transmission-connected to the movable frame, the movable rod is connected to the movable frame, and the movable frame is slidingly connected to the frame, and the second driver can drive the movable frame to move through the eccentric wheel.

[0012] According to some embodiments of the present invention, a connection position of the moving rod on the moving frame is adjustable.

[0013] According to some embodiments of the present invention, an adjustment hole is provided on the movable frame, the movable rod extends into the adjustment hole and is provided with a connecting end, the upper and lower sides of the adjustment hole are threadedly connected to a limiting member, the connecting end is clamped between the two limiting members, and the limiting member can move up and down relative to the movable frame by threaded cooperation with the adjustment hole.

[0014] According to some embodiments of the present invention, the material holder is provided with a heat medium channel for the heat medium fluid to enter and / or the material holder is provided with a heating element.

[0015] The hose shoulder forming apparatus according to the second embodiment of the present invention comprises the hose shoulder injection device according to the first embodiment of the present invention.

[0016] The hose shoulder forming equipment according to the embodiment of the present invention has at least the following beneficial effects: by adopting the above-mentioned hose shoulder injection device, the molten glue in the molten glue channel can be output from the discharge port to the push plate, and the molten glue on the molten glue can be sleeved on the core rod by moving the push plate. Its structure is simple and reasonable, and the molten glue output from the discharge port is pushed and sleeved on the core rod by the push plate, which is beneficial to avoid the influence of external environmental airflow on the output of the molten glue to the core rod, reduces the requirements for the production environment, and facilitates the uniform distribution of the molten glue on the core rod, which is beneficial to improve the yield rate and facilitates production applications.

[0017] Additional aspects and advantages of the present invention will be set forth in part in the description which follows and, in part, will be obvious from the description which follows, or may be learned by practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] The above and / or additional aspects and advantages of the present invention will become apparent and readily understood from the description of the embodiments with reference to the following drawings, in which:

[0019] Figure 1 This is a partial structural diagram of a hose shoulder injection device according to an embodiment of the present invention;

[0020] Figure 2 for Figure 1 One of the cross-sectional structural diagrams of the middle hose shoulder injection device;

[0021] Figure 3 for Figure 2 A magnified schematic diagram of part A;

[0022] Figure 4 for Figure 1 Schematic diagram of the cross-section structure of the middle hose shoulder injection device (part 2);

[0023] Figure 5 for Figure 4Schematic diagram of the cross-sectional structure of the middle hose shoulder injection device in another state.

[0024] Reference numerals:

[0025] Frame 100, material holder 110, raised portion 111, material feed channel 112, narrow opening 113, heat medium channel 114, adhesive melt channel 120, first channel section 121, second channel section 122, and material discharge port 123;

[0026] Opening and closing mechanism 200, moving rod 210, first plug portion 211, second plug portion 212, connecting end portion 213, driving assembly 220, second driver 221, eccentric wheel 222, moving frame 223, adjusting hole 224, and limiting member 225;

[0027] Pushing mechanism 300, pushing plate 310, avoidance opening 311, cooling channel 312, first driver 320;

[0028] Molten glue 1, mandrel 2. DETAILED DESCRIPTION

[0029] The following describes embodiments of the present invention in detail. Examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are intended only to explain the present invention and are not to be construed as limiting the present invention.

[0030] In the description of the present invention, it should be understood that if orientation descriptions are involved, the orientations or positional relationships indicated, such as up, down, left, and right, are based on the orientations or positional relationships shown in the accompanying drawings. This is only for the convenience of describing the present invention and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, it cannot be understood as a limitation on the present invention.

[0031] In the description of the present invention, if the words such as several, greater than, less than, exceed, above, below, within, etc. appear, among which, several means one or more, and more means more than two, greater than, less than, exceed, etc. are understood as not including the number itself, and above, below, within, etc. are understood as including the number itself.

[0032] If the first and second are described, they are only used to distinguish the technical features, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features or implicitly indicating the order of the indicated technical features.

[0033] In the description of the present invention, unless otherwise clearly defined, terms such as setting, installing, and connecting should be understood in a broad sense, and technicians in the relevant technical field can reasonably determine the specific meanings of the above terms in the present invention based on the specific content of the technical solution.

[0034] Reference Figure 1 、 Figure 2 and Figure 3 A hose shoulder injection device includes a frame 100 and an opening and closing mechanism 200 and a pushing mechanism 300 connected to the frame 100. The frame 100 is provided with a material seat 110, the material seat 110 is provided with at least one melt glue channel 120, the melt glue channel 120 is provided with a discharge port 123, the opening and closing mechanism 200 can open or close the discharge port 123, the pushing mechanism 300 includes a pushing plate 310 and a first driver 320, the pushing plate 310 An avoidance opening 311 is provided corresponding to the discharge port 123. The first driver 320 is driven and connected to the push plate 310 and can drive the push plate 310 to move relative to the material base 110. The push plate 310 can move to make the avoidance opening 311 dock with the discharge port 123, so that the molten glue in the melt channel 120 can be output from the discharge port 123 to the push plate 310. The push plate 310 can move to make the molten glue 1 on the push plate 310 be sleeved on the core rod 2.

[0035] It is understandable that if Figure 1 、 Figure 2 and Figure 3 As shown, the push plate 310 is located at the lower side of the material holder 110, and the first driver 320 is connected to the push plate 310 and can drive the push plate 310 to move up and down relative to the material holder 110. Four melt glue channels 120 are provided on the material holder 110, and the four melt glue channels 120 are distributed at intervals along the left and right directions. There are two push plates 310, and one push plate 310 is provided with two avoidance openings 311 to correspond to the two discharge openings 123.

[0036] When in use, the hose shoulder device can be connected to an external feeding device, and the feeding device can be used to transport the molten glue to the molten glue channel 120 of the material holder 110. The opening and closing mechanism 200 can be used to open or close the discharge port 123, thereby controlling the output of the molten glue or stopping the output. By setting a push plate 310 and setting an avoidance port 311 on the push plate 310, the first driver 320 drives the push plate 310 to move, referring to Figure 4 The push plate 310 moves upward to make the avoidance port 311 dock with the discharge port 123, the opening and closing mechanism 200 opens the discharge port 123, and the melt in the melt channel 120 is output from the discharge port 123 to the lower side of the push plate 310. Then, the opening and closing mechanism 200 closes the discharge port 123. Figure 5 The push plate 310 moves downward until the molten glue 1 on it is sleeved on the core rod 2, thereby outputting the molten glue 1 to the core rod 2.

[0037] The present invention has a simple and reasonable structure. The push plate 310 pushes the molten adhesive 1 output from the discharge port 123 onto the core rod 2, which helps to avoid the influence of external environmental airflow on the output of the molten adhesive 1 to the core rod 2, reduces the requirements for the production environment, and facilitates the uniform distribution of the molten adhesive 1 on the core rod 2, which helps to improve the yield rate and facilitates production applications.

[0038] In actual application, the specific structures of the opening and closing mechanism 200 and the pushing mechanism 300 can be set accordingly according to actual use needs, and will not be described in detail here. A detailed explanation will be given below.

[0039] In some embodiments, a protrusion 111 is provided on the lower side of the material holder 110, and the discharge port 123 is provided on the protrusion 111. The protrusion 111 can pass through the push plate 310 through the avoidance opening 311 and make the discharge port 123 located on the lower side of the push plate 310.

[0040] It is understandable that if Figure 3 、 Figure 4 and Figure 5 As shown, the lower side of the material holder 110 is provided with four protrusions 111, each of which is provided with a discharge port 123. Figure 3 and Figure 4 When the push plate 310 moves to make the avoidance opening 311 dock with the discharge opening 123, the protrusion 111 passes through the push plate 310 through the avoidance opening 311 and makes the discharge opening 123 located at the lower side of the push plate 310. The discharge opening 123 is roughly flush with the lower side of the push plate 310, so that the molten glue 1 can be easily output to the lower side of the push plate 310, and the push plate 310 can easily push the molten glue 1 downward and sleeve it on the core rod 2 for easy use.

[0041] In actual application, the specific structures of the protrusion 111 and the avoidance opening 311 can be set accordingly according to actual use needs and are not limited here.

[0042] In some embodiments, the pusher plate 310 is provided with a cooling channel 312 for the cooling fluid to enter. Figure 3 As shown, by providing a cooling channel 312 in the pusher plate 310, a cooling fluid can be input into the cooling channel 312 during use to cool the pusher plate 310, so that there is a certain temperature difference between the pusher plate 310 and the molten adhesive 1, which helps to prevent the molten adhesive 1 from adhering to the pusher plate 310. After the pusher plate 310 pushes the molten adhesive 1 downward and sleeves it on the core rod 2, the molten adhesive 1 is easily separated from the pusher plate 310 for easy use.

[0043] In actual application, the specific structure of the cooling channel 312 can be set accordingly according to actual use needs. When in use, cooling fluid such as cooling gas or coolant can be input into the cooling channel 312 to achieve cooling and lowering of the temperature. Those skilled in the art should understand this.

[0044] In some embodiments, the opening and closing mechanism 200 includes a moving rod 210 and a driving assembly 220. The moving rod 210 is movably inserted into the melt channel 120. The driving assembly 220 is driven and connected to the moving rod 210 and can drive the moving rod 210 to move relative to the material holder 110. The moving rod 210 has a first plug portion 211 that can block the discharge port 123.

[0045] It is understandable that if Figure 1 、 Figure 2 and Figure 3 As shown, four moving rods 210 are provided corresponding to the melt glue channel 120, and each moving rod 210 is movably inserted in the corresponding melt glue channel 120. The lower end of the moving rod 210 is provided with a first plug 211. When in use, the discharge port 123 is blocked by the first plug 211, so that the discharge port 123 is closed to stop the output of the melt glue; the driving component 220 drives the moving rod 210 to move downward relative to the material holder 110, so that the first plug 211 is separated from the discharge port 123, so as to release the blockage of the discharge port 123 and open the discharge port 123 for the melt glue 1 to be output from the discharge port 123. Its structure is simple and reasonable, and it is convenient to realize the opening and closing control of the discharge port 123.

[0046] In actual application, in addition to the above structure, the opening and closing mechanism 200 can also be an electrically controlled switching valve body arranged at the discharge port 123, or a baffle can be movably arranged at the discharge port 123 to block the discharge port 123 through the baffle to achieve opening and closing control. The specific structure of the opening and closing mechanism 200 can also be changed accordingly according to actual use needs.

[0047] In some embodiments, the material holder 110 is provided with a feed channel 112, the moving rod 210 is provided with a second plug 212, and a narrow mouth portion 113 is provided in the melt glue channel 120. The melt glue channel 120 includes a first channel section 121 and a second channel section 122. The narrow mouth portion 113 is located between the first channel section 121 and the second channel section 122. The feed channel 112 is connected to the first channel section 121, and the discharge port 123 is connected to the second channel section 122. The second plug 212 can cooperate with the narrow mouth portion 113 to disconnect the connection between the first channel section 121 and the second channel section 122.

[0048] It is understandable that if Figure 3 、 Figure 4 and Figure 5As shown, the melt channel 120 includes a first channel section 121 and a second channel section 122. The narrow mouth 113 is located between the first channel section 121 and the second channel section 122 and has a constricted structure. The first channel section 121 is connected to the feed channel 112, and the second channel section 122 is connected to the discharge port 123. During use, the molten glue is input from the feed channel 112 to the first channel section 121 and the second channel section 122. In the initial state, the second plug 212 cooperates with the narrow mouth portion 113 to disconnect the first channel section 121 and the second channel section 122, and the first plug 211 blocks the discharge port 123. When the molten glue is discharged, the moving rod 210 moves downward to open the discharge port 123, and the molten glue in the second channel section 122 is discharged from the discharge port 123. At the same time, the narrow mouth portion 113 and the second plug 212 are staggered up and down, and the first channel section 121 is connected to the second channel section 122. The molten glue is input from the first channel section 121 to the second channel section 122, and then the moving rod 210 moves upward to reset, and the above actions are repeated. By providing structures such as the narrow mouth portion 113, the first channel section 121, the second channel section 122 and the second plug portion 212, on the one hand, it is beneficial to control the amount of molten glue output from the discharge port 123 each time. On the other hand, it is beneficial to avoid overflow of molten glue from the discharge port 123 due to a large molten glue input pressure of the feed channel 112, thereby improving reliability of use.

[0049] In actual application, the specific structures of the narrow mouth portion 113, the first channel section 121, the second channel section 122 and the second plug portion 212 can be set accordingly according to actual use needs and are not limited here.

[0050] In some embodiments, the drive assembly 220 includes a second driver 221, an eccentric wheel 222 and a movable frame 223. The second driver 221 is drive-connected to the eccentric wheel 222, the eccentric wheel 222 is transmission-connected to the movable frame 223, the movable rod 210 is connected to the movable frame 223, and the movable frame 223 is slidingly connected to the frame 100. The second driver 221 can drive the movable frame 223 to move through the eccentric wheel 222.

[0051] It is understandable that if Figure 1 and Figure 2 As shown, the second driver 221 is connected to the frame 100 and is driven by the eccentric wheel 222. Multiple moving rods 210 are all connected to the moving frame 223. The moving frame 223 is slidably connected to the frame 100. When in use, the second driver 221 drives the eccentric wheel 222 to rotate, and the eccentric wheel 222 transmits the power, thereby driving the moving frame 223 to move up and down, so as to realize the up and down movement of multiple moving rods 210. Its structure is simple, which is convenient for realizing the synchronous up and down movement of multiple moving rods 210, and convenient for realizing the periodic up and down movement of the moving rods 210, and is easy to use.

[0052] In actual application, the driving component 220 can also be a driver such as a cylinder, a hydraulic cylinder or a linear motor, which is connected to the movable frame 223 or directly to the movable rod 210 to drive the movable rod 210 to move. The specific structure of the driving component 220 can be set accordingly according to actual use needs, which should be understandable to those skilled in the art.

[0053] In some embodiments, the connection position of the moving rod 210 on the moving frame 223 is adjustable. It is understood that by setting the connection position of the moving rod 210 on the moving frame 223 to be adjustable, on the one hand, the travel position of the moving rod 210 can be changed by adjusting the connection position of the moving rod 210 on the moving frame 223, and on the other hand, the position adjustment of the moving rod 210 during installation can be facilitated, thereby facilitating production and assembly.

[0054] In actual application, the specific connection structure between the moving rod 210 and the moving frame 223 can be set accordingly according to actual use needs, which will not be described in detail here and will be explained in detail below.

[0055] In some embodiments, an adjustment hole 224 is provided on the movable frame 223, the movable rod 210 extends into the adjustment hole 224 and is provided with a connecting end 213, the upper and lower sides of the adjustment hole 224 are threadedly connected to the limiting members 225, and the connecting end 213 is clamped between the two limiting members 225. The limiting member 225 can move up and down relative to the movable frame 223 by threaded cooperation with the adjustment hole 224.

[0056] It is understandable that if Figure 1 、 Figure 2 、 Figure 4 and Figure 5 As shown, a plurality of adjustment holes 224 are provided on the movable frame 223 corresponding to the movable rod 210. The upper portion of the movable rod 210 extends into the adjustment hole 224 and is provided with a connecting end 213. The upper and lower sides of each adjustment hole 224 are threadedly connected to a limit member 225, so that the connecting end 213 of each movable rod 210 is sandwiched between two corresponding limit members 225 to achieve the connection and fixation of the movable rod 210. During use, the limit member 225 moves up and down relative to the movable frame 223 by threading with the adjustment hole 224, thereby changing the position of the connecting end 213 in the adjustment hole 224, so that the connection position of the movable rod 210 on the movable frame 223 can be adjusted. The structure is simple and reasonable, the adjustment operation is relatively convenient, and it is easy to use.

[0057] In actual application, in addition to the above structure, multiple mounting holes at different heights can be set on the mobile rod 210 or the mobile frame 223. The mobile rod 210 is connected to the mobile frame 223 through a latch and matched with the corresponding mounting holes, so that the connection position of the mobile rod 210 on the mobile frame 223 can be adjusted. The specific connection structure between the mobile rod 210 and the mobile frame 223 can be changed accordingly according to actual use needs, and will not be repeated here.

[0058] In some embodiments, the material holder 110 is provided with a heat medium channel 114 for the heat medium fluid to enter and / or the material holder 110 is provided with a heating element.

[0059] It is understandable that if Figure 1 、 Figure 2 and Figure 3 As shown, the material holder 110 is provided with a heat medium channel 114 for the entry of heat medium fluid. When in use, the heat medium fluid can be input into the heat medium channel 114 to heat the material holder 110, so that the melt channel 120 can maintain a relatively high temperature, which is beneficial to prevent the melt in the melt channel 120 from cooling, solidifying or agglomerating, so that the melt can achieve a better flow effect, facilitate the transportation of the melt in the feed channel 112 and the melt channel 120, and facilitate use.

[0060] In actual application, the specific structure of the heat medium channel 114 can be set accordingly according to actual use needs. When in use, a heat medium fluid such as gas or liquid with a higher temperature can be input into the heat medium channel 114 to achieve heating and heat preservation of the material holder 110; of course, a heating element can also be set in the material holder 110, and the heating element generates heat to achieve heating and heat preservation of the material holder 110, or a heat medium channel 114 and a heating element can be set in the material holder 110, and the two work together to achieve heating and heat preservation of the material holder 110. The specific setting can be made according to actual use needs, and those skilled in the art should be able to understand it.

[0061] The hose shoulder forming apparatus according to the second embodiment of the present invention comprises the hose shoulder injection device according to the first embodiment of the present invention.

[0062] According to the hose shoulder forming equipment of an embodiment of the present invention, by adopting the above-mentioned hose shoulder injection device, the molten glue 1 in the molten glue channel 120 can be output from the discharge port 123 to the push plate 310, and the molten glue 1 on it can be sleeved on the core rod 2 by moving the push plate 310. Its structure is simple and reasonable. The molten glue 1 output from the discharge port 123 is pushed and sleeved on the core rod 2 by the push plate 310, which is beneficial to avoid the external environmental airflow affecting the output of the molten glue 1 to the core rod 2, reduces the requirements for the production environment, and facilitates the uniform distribution of the molten glue 1 on the core rod 2, which is beneficial to improve the yield rate and facilitates production applications.

[0063] Since other components of the hose shoulder forming apparatus according to the embodiment of the present invention are well known to those skilled in the art, they will not be described in detail here.

[0064] The embodiments of the present invention are described in detail above with reference to the accompanying drawings. However, the present invention is not limited to the above embodiments. Various changes can be made within the scope of knowledge possessed by ordinary technicians in the technical field without departing from the scope of the present invention.

Claims

1. A hose shoulder injection device, characterized in that: include: A frame (100), wherein a material holder (110) is provided on the frame (100), the material holder (110) is provided with at least one melt glue channel (120), and the melt glue channel (120) is provided with a discharge port (123); an opening and closing mechanism (200), connected to the frame (100), wherein the opening and closing mechanism (200) is capable of opening or closing the discharge port (123); A pushing mechanism (300) is connected to the frame (100), and the pushing mechanism (300) includes a pushing plate (310) and a first driver (320). The pushing plate (310) is provided with a avoidance opening (311) corresponding to the discharge port (123). The first driver (320) is drivingly connected to the pushing plate (310) and can drive the pushing plate (310) to move relative to the material seat (110). The pushing plate (310) can be moved to make the avoidance opening (311) dock with the discharge port (123) so that the molten glue in the molten glue channel (120) can be output from the discharge port (123) to the pushing plate (310). The pushing plate (310) can be moved to make the molten glue sleeve on the pushing plate (310) be arranged on the core rod.

2. The hose shoulder injection device according to claim 1, characterized in that: A protrusion (111) is provided on the lower side of the material holder (110), and the discharge port (123) is provided on the protrusion (111). The protrusion (111) can pass through the push plate (310) through the avoidance opening (311) and make the discharge port (123) located on the lower side of the push plate (310).

3. The hose shoulder injection device according to claim 1, characterized in that: The pusher plate (310) is provided with a cooling channel (312) for cooling fluid to enter.

4. The hose shoulder injection device according to claim 1, characterized in that: The opening and closing mechanism (200) includes a moving rod (210) and a driving assembly (220), wherein the moving rod (210) is movably inserted into the melt glue channel (120), and the driving assembly (220) is drivingly connected to the moving rod (210) and can drive the moving rod (210) to move relative to the material seat (110), and the moving rod (210) has a first plug portion (211) capable of blocking the discharge port (123).

5. The hose shoulder injection device according to claim 4, characterized in that: The material holder (110) is provided with a feed channel (112), the movable rod (210) is provided with a second plug portion (212), a narrow mouth portion (113) is provided in the melt glue channel (120), the melt glue channel (120) includes a first channel section (121) and a second channel section (122), the narrow mouth portion (113) is located between the first channel section (121) and the second channel section (122), the feed channel (112) is communicated with the first channel section (121), the discharge port (123) is communicated with the second channel section (122), and the second plug portion (212) can cooperate with the narrow mouth portion (113) to disconnect the communication between the first channel section (121) and the second channel section (122).

6. The hose shoulder injection device according to claim 4, characterized in that: The driving assembly (220) comprises a second driver (221), an eccentric wheel (222) and a movable frame (223); the second driver (221) is drivingly connected to the eccentric wheel (222); the eccentric wheel (222) is transmission-connected to the movable frame (223); the movable rod (210) is connected to the movable frame (223); the movable frame (223) is slidingly connected to the frame (100); and the second driver (221) can drive the movable frame (223) to move via the eccentric wheel (222).

7. The hose shoulder injection device according to claim 6, characterized in that: The connection position of the moving rod (210) on the moving frame (223) is adjustable.

8. The hose shoulder injection device according to claim 7, characterized in that: The movable frame (223) is provided with an adjustment hole (224), the movable rod (210) extends into the adjustment hole (224) and is provided with a connecting end (213), the upper and lower sides of the adjustment hole (224) are both threadedly connected to limiting members (225), the connecting end (213) is sandwiched between the two limiting members (225), and the limiting member (225) can move up and down relative to the movable frame (223) by threaded engagement with the adjustment hole (224).

9. The hose shoulder injection device according to claim 1, characterized in that: The material holder (110) is provided with a heat medium channel (114) for heat medium fluid to enter and / or the material holder (110) is provided with a heating element.

10. A hose shoulder forming device, characterized in that: The hose shoulder device comprises the hose shoulder device according to any one of claims 1 to 9.

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