Glue supply system

Abstract

The utility model belongs to the technical field of glue dispensing equipment, and discloses a glue supply system. The glue supply system includes at least two glue supply units, and the glue supply unit includes a glue outlet assembly, a glue feeding assembly, a material shortage alarm device and a connecting pipeline; the glue outlet assembly includes a first driving cylinder, a accommodating cylinder and a glue outlet pipe, the accommodating cylinder is arranged on the first driving cylinder, the accommodating cylinder has an accommodating cavity, the accommodating cavity is used to accommodate glue, and the glue outlet pipe is connected to the accommodating cylinder; the piston push rod of the first driving cylinder can be extended to squeeze the glue in the accommodating cavity, so that the glue flows into the glue outlet pipe; the glue feeding assembly includes a second driving cylinder, the glue cylinder is detachably arranged on the second driving cylinder, and the piston push rod of the second driving cylinder can be extended to squeeze the glue in the glue cylinder, so that the glue enters the accommodating cavity through the connecting pipeline; the material shortage alarm device can detect the amount of glue in the glue cylinder and issue an alarm. The glue supply system can achieve uninterrupted glue supply to improve production efficiency.

Description

Technical Field

[0001] The utility model relates to the technical field of glue dispensing equipment, in particular to a glue supply system. Background Art

[0002] With the development of industrial technology, glue dispensing machines have been widely used in various fields. For example, electronic components and parts of the automotive industry need to be coated with thermal conductive glue using glue dispensing machines to fix the structure and prevent components from vibrating. In addition, the heat generated by electronic components during operation can be dissipated through glue coating, thereby extending their service life.

[0003] The glue supply device of the existing glue dispensing machine is usually only equipped with one glue supply cylinder. When the glue runs out and the glue cylinder is replaced, the glue dispensing machine must be stopped to replace the new glue cylinder, so that uninterrupted glue supply and glue dispensing operations cannot be performed, which greatly affects the glue supply and glue dispensing efficiency. Utility Model Content

[0004] The utility model aims to provide a glue supply system, which can realize uninterrupted glue supply to improve glue supply efficiency.

[0005] To achieve this purpose, the utility model adopts the following technical solutions:

[0006] The utility model provides a glue supply system, comprising:

[0007] At least two glue supply units, each of which includes a glue outlet assembly, a glue supply assembly, a material shortage alarm device, and a connecting pipeline for one-way flow of glue;

[0008] The glue discharging assembly includes a first driving cylinder, a accommodating cylinder and a glue discharging pipe, wherein the accommodating cylinder is arranged on the first driving cylinder, the accommodating cylinder has a accommodating cavity, the accommodating cavity is used to accommodate glue, the glue discharging pipe is connected to the accommodating cylinder, and the glue discharging pipe is used to apply glue to the workpiece;

[0009] The piston push rod of the first driving cylinder can be extended to squeeze the glue in the accommodating chamber so that the glue flows into the glue outlet pipe;

[0010] The glue feeding assembly includes a second driving cylinder, a glue cylinder is detachably arranged on the second driving cylinder, the glue cylinder is connected to the accommodating cylinder through the connecting pipeline, and the piston push rod of the second driving cylinder can be extended to squeeze the glue in the glue cylinder, so that the glue enters the accommodating chamber through the connecting pipeline;

[0011] The material shortage alarm device is arranged on the glue feeding assembly, and the material shortage alarm device can detect the amount of glue in the glue cylinder and issue an alarm.

[0012] Preferably, the glue outlet assembly further comprises a first connecting seat and a glue outlet seat, wherein the first connecting seat is arranged on the accommodating cylinder, the first connecting seat has a first glue outlet channel, and the first glue outlet channel is communicated with the accommodating cavity;

[0013] The glue outlet seat has a second glue outlet channel, the glue outlet seat is connected to the first connecting seat and the first glue outlet channel is communicated with the second glue outlet channel, and the glue outlet pipe is connected to the glue outlet seat and communicated with the second glue outlet channel.

[0014] Preferably, the glue discharging assembly further comprises a first non-return steel ball and a pressure seat, and the pressure seat cover is arranged on the glue discharging seat;

[0015] The pressure seat has a glue injection channel, and the pressure seat and the glue outlet seat enclose a first temporary storage cavity for accommodating the first check steel ball. The first temporary storage cavity, the glue injection channel and the glue outlet pipe are connected in sequence. The first check steel ball can move in a direction away from the glue outlet seat under the pressure of the glue in the second glue outlet channel to connect the second glue outlet channel with the first temporary storage cavity. The first check steel ball can also abut against the port of the second glue outlet channel under the action of gravity to block the second glue outlet channel.

[0016] Preferably, the glue supply unit further comprises an inspection component, which comprises an inspection cup and an inspection valve arranged on the connecting pipeline, and the inspection cup is used to accommodate glue flowing out of the inspection valve.

[0017] Preferably, the glue feeding assembly further comprises a protective sleeve, the protective sleeve is threadedly connected to the second driving cylinder, and the glue cylinder is installed in the protective sleeve.

[0018] Preferably, the glue feeding assembly further comprises a second connecting seat, the second connecting seat is arranged on the accommodating cylinder, the second connecting seat has a glue feeding channel and a second temporary storage chamber, the second temporary storage chamber is communicated with the accommodating chamber, the end of the protective sleeve is provided with a conduit for connecting with the glue cylinder, the glue feeding channel is communicated with the conduit, and the conduit, the glue feeding channel and the second temporary storage chamber constitute the connecting pipeline;

[0019] A second check steel ball is accommodated in the second temporary storage chamber. The second check steel ball can move in a direction away from the glue feeding channel under the pressure of the glue in the glue feeding channel to connect the glue feeding channel and the second temporary storage chamber. The second check steel ball can also press against the port of the glue feeding channel under the action of gravity to block the glue feeding channel.

[0020] Preferably, the glue supply system further comprises a mounting seat, and at least two of the glue supply units are arranged on the mounting seat.

[0021] The beneficial effects of the utility model are:

[0022] The glue supply system provided by the utility model comprises a glue supply component including a second driving cylinder, and the glue barrel is detachably arranged on the second driving cylinder. Since the glue barrel is connected to the accommodating barrel through a connecting pipeline, and the piston push rod of the second driving cylinder can squeeze the glue in the glue barrel, so that the glue in the glue barrel can flow into the accommodating chamber through the connecting pipeline after being pressurized, thereby preparing for the subsequent glue dispensing operation; the glue dispensing component comprises a first driving cylinder, an accommodating barrel and a glue dispensing pipe. Since the accommodating barrel is connected to the glue dispensing pipe, the piston push rod of the first driving cylinder can squeeze the glue entering the accommodating chamber, so that the glue in the accommodating chamber can flow into the glue dispensing pipe under the pressure of the piston push rod, thereby smoothly performing the glue dispensing operation; since the connecting pipeline is arranged to enable the glue to flow from the glue barrel into the accommodating barrel in one direction, when the first driving cylinder squeezes the glue in the accommodating barrel , the glue will not flow back into the glue barrel through the connecting pipeline, thereby ensuring that all the glue can enter the glue outlet pipe for glue dispensing operation; since the glue supply system includes at least two glue supply units, each glue supply unit includes the above-mentioned glue supply component, glue outlet component and connecting pipeline, so each glue supply unit can independently realize glue supply, when the glue of one of the glue supply units is used up, the other glue supply units can be used for alternate glue supply, thereby realizing uninterrupted glue supply, thereby greatly improving production efficiency; since a material shortage alarm device is provided on the glue supply component, the material shortage alarm device can detect the amount of glue in the glue barrel, when the glue in the glue barrel is about to run out, the material shortage alarm device can sound an alarm to remind the staff to replace the glue barrel in time, thereby avoiding the decline of glue dispensing quality or the interruption of glue dispensing operation due to lack of glue, thereby improving the reliability and practicality of the glue supply system. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 It is a front view of the glue supply system provided by the specific embodiment of the utility model;

[0024] Figure 2 This Figure 1 AA section view in.

[0025] In the figure:

[0026] 1-glue supply unit; 11-glue discharging assembly; 111-first driving cylinder; 112-accommodating cylinder; 113-glue discharging pipe; 114-first connecting seat; 115-glue discharging seat; 116-first non-return steel ball; 117-pressing seat; 12-glue supply assembly; 121-second driving cylinder; 122-second connecting seat; 123-protective sleeve; 124-second non-return steel ball; 13-connecting pipeline; 14-inspection assembly; 141-inspection valve; 142-inspection cup;

[0027] 2-Mounting seat. DETAILED DESCRIPTION

[0028] The present invention is further described in detail below in conjunction with the accompanying drawings and embodiments. It is to be understood that the specific embodiments described herein are only used to explain the present invention, rather than to limit the present invention. It should also be noted that, for ease of description, only the parts related to the present invention, rather than all structures, are shown in the accompanying drawings.

[0029] In the description of the present invention, unless otherwise clearly specified and limited, the terms "connected", "connected", and "fixed" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0030] In the present utility model, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may include that the first and second features are in direct contact, or may include that the first and second features are not in direct contact but are in contact through another feature between them. Moreover, a first feature being "above", "above" and "above" a second feature includes that the first feature is directly above and obliquely above the second feature, or simply indicates that the first feature is higher in level than the second feature. A first feature being "below", "below" and "below" a second feature includes that the first feature is directly below and obliquely below the second feature, or simply indicates that the first feature is lower in level than the second feature.

[0031] In the description of this embodiment, the terms "upper", "lower", "right", "left" and other directions or positional relationships are based on the directions or positional relationships shown in the drawings, and are only for the convenience of description and simplified operation, rather than indicating or implying that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore cannot be understood as a limitation of the present invention. In addition, the terms "first" and "second" are only used to distinguish in the description and have no special meaning.

[0032] like Figure 1 and Figure 2As shown, the utility model provides a glue supply system, which includes at least two glue supply units 1, the glue supply unit 1 includes a glue discharge component 11, a glue supply component 12, a material shortage alarm device and a connecting pipeline 13 for one-way flow of glue; the glue discharge component 11 includes a first driving cylinder 111, a accommodating cylinder 112 and a glue discharge pipe 113, the accommodating cylinder 112 is arranged on the first driving cylinder 111, the accommodating cylinder 112 has an accommodating cavity, the accommodating cavity is used to accommodate glue, the glue discharge pipe 113 and the accommodating cylinder 112 are connected to each other. The glue outlet pipe 113 is used to apply glue to the workpiece; the piston push rod of the first driving cylinder 111 can be extended to squeeze the glue in the accommodating chamber so that the glue flows into the glue outlet pipe 113; the glue feeding assembly 12 includes a second driving cylinder 121, and the glue cylinder is detachably arranged on the second driving cylinder 121, and the glue cylinder is connected to the accommodating cylinder 112 through a connecting pipe 13, and the piston push rod of the second driving cylinder 121 can be extended to squeeze the glue in the glue cylinder so that the glue enters the accommodating chamber through the connecting pipe 13. In this embodiment, the glue feeding component 12 includes a second driving cylinder 121, and the glue cylinder is detachably arranged on the second driving cylinder 121. Since the glue cylinder is connected to the accommodating cylinder 112 through the connecting pipe 13, and the piston push rod of the second driving cylinder 121 can squeeze the glue in the glue cylinder, so that the glue in the glue cylinder can flow into the accommodating chamber through the connecting pipe 13 after being pressurized, thereby preparing for the subsequent glue dispensing operation; the glue dispensing component 11 includes a first driving cylinder 111, a accommodating cylinder 112 and a glue dispensing pipe 113. Since the accommodating cylinder 112 is connected to the glue dispensing pipe 113, the piston push rod of the first driving cylinder 111 can squeeze the glue entering the accommodating chamber, so that the glue in the accommodating chamber can flow into the glue dispensing pipe 11 under the pressure of the piston push rod. 3, so that the glue dispensing operation can be carried out smoothly; since the connecting pipeline 13 is configured to enable the glue to flow from the glue cylinder into the accommodating cylinder 112 in one direction, when the first driving cylinder 111 squeezes the glue in the accommodating cylinder 112, the glue will not flow back into the glue cylinder through the connecting pipeline 13, thereby ensuring that the glue can all enter the glue outlet pipe 113 for the glue dispensing operation; since the glue supply system includes at least two glue supply units 1, each glue supply unit 1 includes the above-mentioned glue supply component 12, glue outlet component 11 and connecting pipeline 13, so each glue supply unit 1 can independently realize glue supply, when the glue of one of the glue supply units 1 is used up, other glue supply units 1 can be used to alternately supply glue, thereby realizing uninterrupted glue supply, thereby greatly improving production efficiency. Specifically, the function of the second driving cylinder 121 is to supply glue to the accommodating cylinder 112 by squeezing the glue cylinder through the piston push rod, and the function of the first driving cylinder 111 is to pressurize the glue in the accommodating chamber through the piston push rod so as to press the glue in the accommodating chamber into the glue outlet pipe 113, thereby performing the glue dispensing operation. The working pressure of the first driving cylinder 111 is greater than that of the second driving cylinder 121, thereby realizing remote high-pressure glue supply and greatly increasing the glue supply distance.The rubber cartridge is filled with glue. When the glue in a rubber cartridge is used up, the staff can directly remove the used rubber cartridge and replace it with a new one.

[0033] The material shortage alarm device is arranged on the glue supply component 12, and the material shortage alarm device can detect the amount of glue in the glue cylinder and sound an alarm. In this embodiment, the material shortage alarm device includes a magnetic ring installed at the end of the piston push rod of the second driving cylinder 121, and also includes an induction switch arranged on the cylinder body of the second driving cylinder 121. When the glue in the glue cylinder is about to run out, the piston push rod is about to extend to the limit position. At this time, the magnetic ring on the end of the piston push rod can be detected by the induction switch and an alarm or signal is sent out to remind the staff to replace the glue cylinder in time to avoid the deterioration of the dispensing quality or the interruption of the dispensing operation due to the lack of glue, thereby improving the reliability and practicality of the glue supply system.

[0034] Furthermore, if Figure 2 As shown, the glue discharging assembly 11 further includes a first connecting seat 114 and a glue discharging seat 115. The first connecting seat 114 is arranged on the accommodating cylinder 112. The first connecting seat 114 has a first glue discharging channel, and the first glue discharging channel is connected to the accommodating cavity; the glue discharging seat 115 has a second glue discharging channel, the glue discharging seat 115 is connected to the first connecting seat 114, and the first glue discharging channel is connected to the second glue discharging channel, and the glue discharging pipe 113 is connected to the glue discharging seat 115 and is connected to the second glue discharging channel. In this embodiment, the first connecting seat 114 is connected to the accommodating cylinder 112, the glue discharging seat 115 is connected to the first connecting seat 114, and the accommodating cavity, the first glue discharging channel, the second glue discharging channel and the glue discharging pipe 113 are connected in sequence, so that the glue enters the glue discharging pipe 113 from the accommodating cavity after being pressurized.

[0035] Specifically, Figure 2As shown, the glue discharge component 11 also includes a first check steel ball 116 and a pressure seat 117, and the pressure seat 117 is covered on the glue discharge seat 115; the pressure seat 117 has a glue injection channel, and the pressure seat 117 and the glue discharge seat 115 enclose a first temporary storage cavity for accommodating the first check steel ball 116; the first temporary storage cavity, the glue injection channel and the glue discharge pipe 113 are connected in sequence, and the first check steel ball 116 can move in the direction away from the glue discharge seat 115 under the pressure of the glue in the second glue discharge channel, so that the second glue discharge channel is connected with the first temporary storage cavity, and the first check steel ball 116 can also abut against the port of the second glue discharge channel under the action of gravity to block the second glue discharge channel. In this embodiment, the pressure seat 117 is detachably arranged on the glue outlet seat 115, and the first check steel ball 116 is placed in the first temporary storage chamber and there is a gap with the inner wall of the first temporary storage chamber; when the glue dispensing operation is suspended, the first driving cylinder 111 does not squeeze the glue in the accommodating chamber. At this time, the first check steel ball 116 rests on the port of the second glue outlet channel under the action of gravity to block the second glue outlet channel, thereby preventing foreign matter from entering the accommodating chamber through the second glue outlet channel and the first glue outlet channel to contaminate the glue; when the glue dispensing operation starts, the first driving cylinder 111 squeezes the glue in the accommodating chamber. At this time, the first check steel ball 116 is lifted up and leaves the port of the second glue outlet channel under the action of the glue pressure, and the second glue outlet channel is connected with the glue injection channel through the first temporary storage chamber, so that the glue can flow into the glue outlet pipe 113.

[0036] Furthermore, if Figure 1 and Figure 2 As shown, the glue supply unit 1 further includes an inspection component 14, which includes an inspection cup 142 and an inspection valve 141 provided on the connecting pipeline 13, and the inspection cup 142 is used to accommodate the glue flowing out of the inspection valve 141. In this embodiment, the connecting pipeline 13 is provided with an inspection valve 141, and the inspection cup 142 is provided below the inspection valve 141; after each replacement of a new rubber cartridge and before using the glue in the new rubber cartridge for dispensing, the staff opens the inspection valve 141 and starts the second driving cylinder 121 to squeeze the glue in the rubber cartridge, and the glue flows into the inspection cup 142 through the inspection valve 141. Then the staff checks the glue in the inspection cup 142 for bubbles and foreign matter, and after confirmation, closes the inspection valve 141 to perform normal glue supply operations, thereby avoiding the influence of bubbles and foreign matter on the glue.

[0037] Furthermore, if Figure 2As shown, the glue feeding assembly 12 further includes a protective sleeve 123, which is threadedly connected to the second driving cylinder 121, and the rubber cartridge is installed in the protective sleeve 123. In this embodiment, the protective sleeve 123 is arranged on the second driving cylinder 121, and the protective sleeve 123 is used to install the rubber cartridge, thereby protecting the rubber cartridge; specifically, the protective sleeve 123 is threadedly connected to the second driving cylinder 121, which is easy to disassemble.

[0038] Specifically, Figure 2 As shown, the glue feeding assembly 12 also includes a second connecting seat 122, and the second connecting seat 122 is arranged on the accommodating cylinder 112. The second connecting seat 122 has a glue feeding channel and a second temporary storage chamber, and the second temporary storage chamber is connected with the accommodating chamber. The end of the protective sleeve 123 is provided with a conduit for connecting with the glue cylinder, and the glue feeding channel is connected with the conduit. The conduit, the glue feeding channel and the second temporary storage chamber constitute a connecting pipeline 13; a second check steel ball 124 is accommodated in the second temporary storage chamber, and the second check steel ball 124 can move in a direction away from the glue feeding channel under the pressure of the glue in the glue feeding channel to connect the glue feeding channel and the second temporary storage chamber, and the second check steel ball 124 can also abut against the port of the glue feeding channel under the action of gravity to block the glue feeding channel. In this embodiment, one end of the protective sleeve 123 is threadedly connected to the second driving cylinder 121, and the other end of the protective sleeve 123 is connected to a conduit, the check valve 141 is arranged on the conduit, and the rubber cylinder is connected to the rubber supply channel through the conduit; the second check ball 124 is placed in the second temporary storage chamber and there is a gap between it and the inner wall of the second temporary storage chamber. Specifically, Figure 2 The arrow in the figure indicates the flow path of the glue; when the glue in the accommodating chamber is used up, the piston push rod of the first driving cylinder 111 moves to the top, and the second driving cylinder 121 is started to squeeze the glue in the rubber tube. The glue enters the glue supply channel through the conduit under the pressure of the piston push rod, and lifts the second check ball 124 to leave the port of the glue supply channel. At this time, the glue supply channel is connected with the second temporary storage chamber, and the glue enters the accommodating chamber through the second temporary storage chamber, so that the glue supply operation is carried out smoothly; when the glue in the accommodating chamber reaches a certain amount, the glue automatically stops entering the accommodating chamber. Glue is supplied. At this time, the second driving cylinder 121 stops working, and the second check steel ball 124 falls back to the port of the glue supply channel under the action of gravity and rests on the port, thereby blocking the glue supply channel; then the first driving cylinder 111 is started, and the piston push rod of the first driving cylinder 111 pushes the glue in the accommodating chamber. At this time, since the second check steel ball 124 is blocked at the port of the glue supply channel, the glue in the accommodating chamber will automatically pass through the first glue outlet channel and the second glue outlet channel into the first temporary storage chamber under the action of pressure, and flow into the glue outlet pipe 113 through the glue injection channel.

[0039] Furthermore, if Figure 1 and Figure 2As shown, the glue supply system further includes a mounting seat 2, and at least two glue supply units 1 are disposed on the mounting seat 2. In this embodiment, all glue supply units 1 are disposed on the mounting seat 2, thereby forming an integral structure, which facilitates the overall handling and movement of the glue supply system and improves practicality.

[0040] Obviously, the above embodiments of the present invention are merely examples for the purpose of clearly illustrating the present invention, and are not intended to limit the implementation methods of the present invention. For those skilled in the art, various obvious changes, readjustments and substitutions can be made without departing from the scope of protection of the present invention. It is not necessary and impossible to list all implementation methods here. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention shall be included in the scope of protection of the claims of the present invention.

Claims

1. Glue supply system, characterized in that: include: At least two glue supply units (1), the glue supply units (1) comprising a glue outlet component (11), a glue supply component (12), a material shortage alarm device, and a connecting pipeline (13) for enabling one-way flow of glue; The glue discharging component (11) comprises a first driving cylinder (111), a containing cylinder (112) and a glue discharging pipe (113); the containing cylinder (112) is arranged on the first driving cylinder (111); the containing cylinder (112) has a containing cavity, the containing cavity is used to contain glue; the glue discharging pipe (113) is connected to the containing cylinder (112); the glue discharging pipe (113) is used to apply glue to a workpiece; The piston push rod of the first driving cylinder (111) can be extended to squeeze the glue in the accommodating chamber so that the glue flows into the glue outlet pipe (113); The glue supply assembly (12) comprises a second driving cylinder (121), a glue cylinder is detachably arranged on the second driving cylinder (121), the glue cylinder is connected to the accommodating cylinder (112) via the connecting pipeline (13), and the piston push rod of the second driving cylinder (121) can be extended to squeeze the glue in the glue cylinder, so that the glue enters the accommodating chamber through the connecting pipeline (13); The material shortage alarm device is arranged on the glue feeding component (12), and the material shortage alarm device can detect the amount of glue in the glue cylinder and issue an alarm.

2. The glue supply system according to claim 1, characterized in that: The glue outlet assembly (11) further comprises a first connecting seat (114) and a glue outlet seat (115), wherein the first connecting seat (114) is arranged on the accommodating cylinder (112), and the first connecting seat (114) has a first glue outlet channel, and the first glue outlet channel is connected to the accommodating cavity; The glue outlet seat (115) has a second glue outlet channel, the glue outlet seat (115) is connected to the first connecting seat (114) and the first glue outlet channel is in communication with the second glue outlet channel, and the glue outlet pipe (113) is connected to the glue outlet seat (115) and in communication with the second glue outlet channel.

3. The glue supply system according to claim 2, characterized in that: The glue discharging assembly (11) further comprises a first non-return steel ball (116) and a pressure seat (117), wherein the pressure seat (117) is covered on the glue discharging seat (115); The pressure seat (117) has a glue injection channel, and a first temporary storage chamber for accommodating the first check steel ball (116) is enclosed between the pressure seat (117) and the glue outlet seat (115). The first temporary storage chamber, the glue injection channel and the glue outlet pipe (113) are connected in sequence. The first check steel ball (116) can move in a direction away from the glue outlet seat (115) under the pressure of glue in the second glue outlet channel, so that the second glue outlet channel is connected to the first temporary storage chamber. The first check steel ball (116) can also abut against the port of the second glue outlet channel under the action of gravity to block the second glue outlet channel.

4. The glue supply system according to claim 1, characterized in that: The glue supply unit (1) further comprises an inspection component (14), wherein the inspection component (14) comprises an inspection cup (142) and an inspection valve (141) arranged on the connecting pipeline (13), wherein the inspection cup (142) is used to contain glue flowing out of the inspection valve (141).

5. The glue supply system according to claim 1, characterized in that: The glue supply assembly (12) further comprises a protective sleeve (123), wherein the protective sleeve (123) is threadedly connected to the second driving cylinder (121), and the glue cylinder is installed in the protective sleeve (123).

6. The glue supply system according to claim 5, characterized in that: The glue supply assembly (12) further comprises a second connecting seat (122), the second connecting seat (122) being arranged on the accommodating cylinder (112), the second connecting seat (122) having a glue supply channel and a second temporary storage chamber, the second temporary storage chamber being in communication with the accommodating chamber, the end of the protective sleeve (123) being provided with a conduit for connecting with the glue cylinder, the glue supply channel being in communication with the conduit, the conduit, the glue supply channel and the second temporary storage chamber forming the connecting pipeline (13); A second check steel ball (124) is accommodated in the second temporary storage chamber. The second check steel ball (124) can move in a direction away from the glue supply channel under the pressure of the glue in the glue supply channel to connect the glue supply channel and the second temporary storage chamber. The second check steel ball (124) can also abut against the port of the glue supply channel under the action of gravity to block the glue supply channel.

7. The glue supply system according to claim 1, characterized in that: The glue supply system further comprises a mounting seat (2), and at least two of the glue supply units (1) are arranged on the mounting seat (2).

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