Leakage-proof glue barrel for glue dispenser

Abstract

The utility model relates to the technical field of dispensing, in particular to a leak-proof glue barrel for a dispensing machine, which comprises a glue barrel body, a glue storage cavity is formed in the glue barrel body, a first glue outlet is arranged at the bottom of the glue storage cavity, and a leak-proof joint is mounted at the glue outlet; a leakage stopping cavity communicated with the glue storage cavity is formed in the leakage stopping connector, a second glue outlet is formed in the bottom of the leakage stopping cavity, a plug and a third elastic piece used for pressing the plug downwards to plug the second glue outlet are arranged in the leakage stopping cavity in a sliding mode, and a tip used for jacking up the plug to open the second glue outlet is arranged in the glue inlet connector in a protruding mode. According to the utility model, the third elastic piece is used for pressing the plug to plug the second glue outlet so as to realize the normally closed arrangement of the glue barrel body, and the tip in the glue inlet joint is used for jacking the plug to realize the communication between the glue barrel body and the glue inlet joint when the glue barrel body is mounted, so that the glue leakage phenomenon of the glue outlet when the glue barrel is dismounted is avoided; and the glue outlet can be automatically opened when the glue barrel is mounted.

Description

Technical Field

[0001] The utility model relates to the technical field of dispensing, in particular to a leak-proof glue bucket for a dispenser. Background Art

[0002] When a dispenser performs a dispensing operation, the glue outlet of the glue bucket is connected to the glue inlet joint of the dispenser, and a heating mechanism heats the glue bucket to melt the solid glue inside the glue bucket, and then enters the dispensing head through the glue inlet joint for dispensing.

[0003] In the prior art, considering that the hot melt glue inside the glue bucket is in a solid state in the initial state and for the convenience of installing the glue bucket, the glue outlet is usually set to be in an open state. However, when the glue in the glue bucket is used up and needs to be replaced, the remaining glue in the glue bucket will leak out, and frequent cleaning operations are required, which is rather cumbersome. Summary of the Utility Model

[0004] The technical problem to be solved by the utility model is: to solve the problem in the prior art that when the glue in the glue bucket is used up and needs to be replaced, the remaining glue in the glue bucket will leak out, and frequent cleaning operations are required, which is rather cumbersome. Now, a leak-proof glue bucket for a dispenser is provided.

[0005] To solve the above technical problem, the utility model adopts the following technical scheme: a leak-proof glue bucket for a dispenser, the dispenser includes a dispensing head, a leak-proof glue bucket for supplying glue to the dispensing head, and a glue inlet joint for connecting the dispensing head and the leak-proof glue bucket. The leak-proof glue bucket includes a glue bucket body, a glue storage cavity is formed inside the glue bucket body, and a first glue outlet is provided at the bottom of the glue storage cavity. A leak-proof joint is installed on the first glue outlet;

[0006] A leak-proof cavity communicating with the glue storage cavity is formed inside the leak-proof joint. A second glue outlet is provided at the bottom of the leak-proof cavity. A plug is slidably arranged in the leak-proof cavity, and a third elastic member is used to press down the plug to block the second glue outlet. A tip for jacking up the plug to open the second glue outlet protrudes inside the glue inlet joint.

[0007] Further, a first locking mechanism is provided between the leak-proof joint and the glue inlet joint for locking the two.

[0008] Further, the tip includes a plurality of annular protrusions arranged at intervals along the circumferential direction of the glue inlet flow channel inside the glue inlet joint, and a communication flow channel for the glue to pass through is formed between adjacent two annular protrusions.

[0009] Further, the first locking mechanism includes a first claw rotatably arranged on the leak-proof joint, and a flange for clamping the first claw protrudes radially from the glue inlet joint.

[0010] Further, there are two first clamping claws, which are symmetrically arranged and a first elastic member is provided between the two.

[0011] Further, the plug is a hemispherical structure with the spherical surface facing downwards, and the second glue outlet is a conical surface structure with a larger upper part and a smaller lower part.

[0012] Further, a sealing plug is provided at the top of the glue bucket body, a bracket for positioning it is provided on the side of the glue bucket body, a positioning ring cooperating with the sealing plug is provided on the bracket, and a second locking mechanism for locking the two is provided between the positioning ring and the sealing plug.

[0013] Further, the sealing plug includes a sealing portion inserted into the interior of the glue bucket body and a positioning portion located above the sealing portion and passing through the positioning ring, and the second locking mechanism includes a second clamping claw rotatably provided on the positioning portion and used for clamping with the positioning ring.

[0014] Further, a sliding rod is connected to the upper end of the plug, and the third elastic member is a spring which is sleeved on the sliding rod.

[0015] Further, the leak-proof joint includes an upper joint and a lower joint which are fixedly connected, and the inner peripheral wall of the upper joint protrudes inwards from the inner peripheral wall of the lower joint to form a limiting step for limiting the upward movement stroke of the plug.

[0016] The beneficial effects of the present utility model: The present utility model uses the third elastic member to press down the plug to block the second glue outlet to realize the normally closed setting of the glue bucket body, and when the glue bucket body is installed, the top in the glue inlet joint is used to jack up the plug to realize the connection between the glue bucket body and the glue inlet joint, which not only avoids the glue leakage phenomenon at the glue outlet when the glue bucket is disassembled and assembled, but also realizes the automatic opening of the glue outlet when the glue bucket is installed. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] The following further describes the present utility model in conjunction with the drawings and embodiments.

[0018] Figure 1 is the three-dimensional schematic diagram of the present utility model;

[0019] Figure 2 is the front view of the present utility model;

[0020] Figure 3 is Figure 2 the cross-sectional view in the A-A direction of

[0021] Figure 4 is the cross-sectional view of the cooperation between the leak-proof joint and the glue inlet joint;

[0022] Figure 5 is the structural schematic diagram of the glue inlet joint;

[0023] Figure 6It is a schematic structural diagram of the cooperation between the upper joint and the first locking mechanism;

[0024] In the figure:

[0025] 1. Glue barrel body; 101. Glue storage cavity; 102. First glue outlet;

[0026] 2. Leak-proof joint; 201. Leak-proof cavity; 202. Second glue outlet; 203. Plug; 204. Third elastic member; 205. Slide rod; 206. Upper joint; 2061. Upper neck; 207. Lower joint; 2071. Lower neck; 208. Limit step; 209. Upper mounting step; 210. Lower mounting step; 211. Accommodating groove;

[0027] 3. Glue inlet joint; 301. Tip; 3011. Annular protrusion; 3012. Connecting flow channel; 302. Glue inlet flow channel; 303. Insertion cavity; 304. Sealing member; 305. Flange;

[0028] 4. First locking mechanism; 401. First claw; 4011. Rod portion; 4012. Hook portion; 4013. Pressing portion; 402. First elastic member;

[0029] 5. Sealing plug; 501. Sealing portion; 502. Positioning portion;

[0030] 6. Bracket; 601. Positioning ring;

[0031] 7. Second locking mechanism; 701. Second claw; 702. Second elastic member. Detailed implementation mode

[0032] Now, the present invention will be further described in detail with reference to the accompanying drawings. These drawings are all simplified schematic diagrams, only illustrating the basic structure of the present invention in a schematic manner. Therefore, they only show the components related to the present invention. Directions and references (such as up, down, left, right, etc.) can only be used to assist in the description of the features in the drawings. Therefore, the following detailed implementation mode is not adopted in a restrictive sense, and the scope of the claimed subject matter is only defined by the appended claims and their equivalent forms.

[0033] As Figures 1 - 3 shown, a leak-proof glue barrel for a dispensing machine, the dispensing machine includes a dispensing head, a leak-proof glue barrel for supplying glue liquid to the dispensing head, and a glue inlet joint 3 for connecting the dispensing head and the leak-proof glue barrel. The leak-proof glue barrel includes a glue barrel body 1, a glue storage cavity 101 is formed inside the glue barrel body 1, and a first glue outlet 102 communicated with the bottom of the glue storage cavity 101 is provided. A leak-proof joint 2 is installed on the first glue outlet 102;

[0034] A leak-proof joint 2 is internally formed with a leak-proof cavity 201 communicating with the glue storage cavity 101. A second glue outlet 202 communicating with the leak-proof cavity 201 is provided at the bottom of the leak-proof cavity 201. A plug 203 and a third elastic member 204 for pressing down the plug 203 to block the second glue outlet 202 are slidably arranged in the leak-proof cavity 201. A tip 301 for jacking up the plug 203 to open the second glue outlet 202 protrudes inside the glue inlet joint 3, and a glue inlet channel 302 communicating the second glue outlet 202 with the dispensing head is provided inside the glue inlet joint 3.

[0035] When the glue bucket body 1 is not connected to the glue inlet joint 3, the tip 301 and the plug 203 have not contacted yet. The plug 203 is pressed down by the elastic force of the third elastic member 204 to block the second glue outlet 202.

[0036] When the glue bucket body 1 is inserted into and connected to the glue inlet joint 3, the tip 301 contacts the plug 203 and jacks up the plug 203 against the pressure of the third elastic member 204. At this time, the second glue outlet 202 is opened, and the glue in the glue bucket sequentially enters the dispensing head through the glue storage cavity 101, the first glue outlet 102, the leak-proof cavity 201, the second glue outlet 202, and the glue inlet channel 302.

[0037] Therefore, the glue bucket body 1 is normally closed. When disassembling and replacing the glue bucket, the moment when the glue bucket body 1 has not contacted or has separated from the glue inlet joint 3 is the closed state, and the glue inside it will not leak out.

[0038] In some examples, as Figure 1 and Figure 2 shown, a first locking mechanism 4 for locking the leak-proof joint 2 and the glue inlet joint 3 is provided between the leak-proof joint 2 and the glue inlet joint 3. After the leak-proof joint 2 and the glue inlet joint 3 are inserted, the two can be locked by the first locking mechanism 4 to prevent the leak-proof joint 2 from being jacked up under the elastic force of the third elastic member 204 during the dispensing process, causing the leak-proof joint 2 to separate from the glue inlet joint 3.

[0039] In some examples, as Figure 5 shown, the tip 301 includes a plurality of annular protrusions 3011 arranged at intervals along the circumferential direction of the glue inlet channel 302. A communication channel 3012 for the glue to pass through is formed between two adjacent annular protrusions 3011. When the leak-proof joint 2 is connected to the glue inlet joint 3, the annular protrusions 3011 jack up the plug 203, and the glue flowing out from the second glue outlet 202 enters the glue inlet channel 302 through the communication channel 3012.

[0040] In some examples, the first locking mechanism 4 includes a first claw 401 rotatably arranged on the leak-proof joint 2, and the glue inlet joint 3 protrudes radially with a flange 305 for clamping the first claw 401; after the leak-proof joint 2 is inserted into the glue inlet joint 3, the first claw 401 is rotated downward to hook the flange 305 to lock the leak-proof joint 2 and the glue inlet joint 3.

[0041] In some examples, such as Figure 4 and Figure 6 shown, there are two first claws 401, the two first claws 401 are symmetrically arranged, and a first elastic member 402 is provided between each first claw 401 and the leak-proof joint 2;

[0042] The first claw 401 includes a rod portion 4011, a hook portion 4012 located at the bottom end of the rod portion 4011 for hooking the flange 305, and a pressing portion 4013 located at the top end of the rod portion 4011. The middle of the rod portion 4011 is rotatably connected to the leak-proof joint 2. The leak-proof joint 2 is provided with a receiving groove 211 for the first claw 401. The two first claws 401 correspond to the two receiving grooves 211 one by one, and each first claw 401 is rotatably installed in its corresponding receiving groove 211. The first elastic member 402 is also installed in the receiving groove 211. The pressing portion 4013 and the bottom of the receiving groove 211 are both provided with grooves for receiving the end portions of the first elastic member 402.

[0043] After the first claw 401 is clamped with the flange 305, the first elastic member 402 applies a thrust to the pressing portion 4013 located at the upper end to increase the clamping force between the hook portion 4012 located at the lower end and the flange 305.

[0044] In some examples, such as Figure 4 shown, the plug 203 is a hemispherical structure with a spherical surface facing downward, and the second glue outlet 202 is a tapered surface structure with a larger upper part and a smaller lower part. When the plug 203 contacts the second glue outlet 202, the cooperation between the spherical surface and the tapered surface can improve the plugging effect.

[0045] In some examples, such as Figure 1 and Figure 2 shown, a sealing plug 5 is provided at the top of the glue bucket body 1, a bracket 6 for positioning it is provided on the side of the glue bucket body 1. The bracket 6 can move longitudinally, and a positioning ring 601 cooperating with the sealing plug 5 is provided at the top of the bracket 6. A second locking mechanism 7 for locking the two is provided between the positioning ring 601 and the sealing plug 5. After the sealing plug 5 passes through the positioning ring 601 and cooperates with the glue bucket body 1 to seal its top, locking the positioning ring 601 and the sealing plug 5 through the second locking mechanism 7 can improve the sealing effect.

[0046] In some examples, such as Figure 3As shown, the sealing plug 5 includes a sealing portion 501 inserted into the interior of the glue bucket body 1 and a positioning portion 502 located above the sealing portion 501 and passing through the positioning ring 601. The second locking mechanism 7 includes a second claw 701 rotatably arranged on the positioning portion 502 and used for engaging with the positioning ring 601. There are two second claws 701, which are symmetrically arranged, and a second elastic member 702 is provided between each second claw 701 and the positioning portion 502. The structure and working principle of the second locking mechanism 7 are basically the same as those of the first locking mechanism 4, and will not be elaborated here. First, the sealing portion 501 is inserted into the glue bucket body 1 from top to bottom through the positioning ring 601, and then the second claw 701 is rotated downward to hook the positioning ring 601 to realize the locking of the positioning ring 601 and the sealing plug 5.

[0047] In some examples, a slide rod 205 is connected to the upper end of the plug 203. The third elastic member 204 is a spring, which is sleeved on the slide rod 205. The spring presses down the plug 203 to block the second glue outlet 202, realizing the normally closed setting of the glue bucket body 1.

[0048] In some examples, as Figure 4 shown, the leak-proof joint 2 includes an upper joint 206 and a lower joint 207 that are fixedly connected. An insertion slot for inserting the upper joint 206 is formed at the upper end of the lower joint 207. The inner peripheral wall of the upper joint 206 protrudes inward from the inner peripheral wall of the lower joint 207 to form a limit step 208 for limiting the upward movement stroke of the plug 203.

[0049] The upper end of the upper joint 206 is constricted to form an upper neck 2061, and the upper neck 2061 is provided with a Luer thread for connecting with the glue bucket body 1. The leak-proof joint 2 is connected to the glue bucket body 1 through the Luer thread to form a combination.

[0050] The lower end of the lower joint 207 is constricted to form a lower neck 2071. The glue inlet joint 3 is provided with a plugging cavity 303 for inserting the lower neck 2071, and a sealing member 304 is provided between the cavity wall of the plugging cavity 303 and the outer peripheral wall of the lower neck 2071. The combination formed by the glue bucket body 1 and the leak-proof joint 2 and the glue inlet joint 3 are installed in a pluggable manner.

[0051] A lower installation step 210 is formed between the plug 203 and the slide rod 205. The inner peripheral wall of the upper joint 206 forms an upper installation step 209, and one end of the third elastic member 204 is connected to the upper installation step 209, and the other end is connected to the lower installation step 210.

[0052] Working principle:

[0053] The leak-proof joint 2 is connected to the glue bucket body 1 through the Luer thread to form a combination, and the combination and the glue inlet joint 3 are installed in a pluggable manner.

[0054] When the glue bucket body 1 is not connected to the glue inlet joint 3, the top 301 and the plug 203 have not come into contact yet. The plug 203 is pressed down by the elastic force of the third elastic member 204, so that the second glue outlet 202 is blocked by it.

[0055] When the glue bucket body 1 is inserted into and connected to the glue inlet joint 3, the top 301 comes into contact with the plug 203 and pushes the plug 203 up against the pressure of the third elastic member 204. At this time, the second glue outlet 202 is opened, and the glue in the glue bucket body 1 sequentially passes through the glue storage cavity 101, the first glue outlet 102, the leak-proof cavity 201, the second glue outlet 202, the communication flow channel 3012 and the glue inlet flow channel 302 into the dispensing head. At the same time, the first claw 401 is rotated downward to hook the flange 305 to lock the leak-proof joint 2 and the glue inlet joint 3, so as to prevent the leak-proof joint 2 from being pushed up under the elastic force of the third elastic member 204 during the dispensing process, causing the leak-proof joint 2 to be separated from the glue inlet joint 3.

[0056] Inspired by the ideal embodiments of the present invention described above, through the above description, relevant staff can completely make various changes and modifications within the scope not deviating from the technical idea of the present invention. The technical scope of the present invention is not limited to the content in the specification, and its technical scope must be determined according to the scope of the claims.

Claims

1. A leak-proof glue bucket for a dispensing machine, the dispensing machine comprising a dispensing head, a leak-proof glue bucket for supplying glue to the dispensing head, and a glue inlet joint (3) for connecting the dispensing head and the leak-proof glue bucket, characterized in that: The glue leakage prevention glue bucket includes a glue bucket body (1). A glue storage cavity (101) is formed inside the glue bucket body (1), and a first glue outlet (102) is provided at the bottom of the glue storage cavity (101). A glue leakage prevention joint (2) is installed on the first glue outlet (102). A glue leakage prevention cavity (201) communicating with the glue storage cavity (101) is formed inside the glue leakage prevention joint (2). A second glue outlet (202) is provided at the bottom of the glue leakage prevention cavity (201). A plug (203) is slidably arranged in the glue leakage prevention cavity (201), and a third elastic member (204) for pressing down the plug (203) to block the second glue outlet (202) is provided. A tip (301) for jacking up the plug (203) to open the second glue outlet (202) protrudes inside the glue inlet joint (3).

2. The leak-proof glue bucket for a dispensing machine according to claim 1, wherein: A first locking mechanism (4) for locking the glue leakage prevention joint (2) and the glue inlet joint (3) is provided between the glue leakage prevention joint (2) and the glue inlet joint (3).

3. The leak-proof glue bucket for a dispensing machine according to claim 1, wherein: The tip (301) includes a plurality of annular protrusions (3011) arranged at intervals along the circumference of the glue inlet channel (302) inside the glue inlet joint (3). A communication channel (3012) for the glue liquid to pass through is formed between adjacent two annular protrusions (3011).

4. A leak-proof glue bucket for a dispensing machine according to claim 2, wherein: The first locking mechanism (4) includes a first claw (401) rotatably arranged on the glue leakage prevention joint (2). A flange (305) for clamping the first claw (401) protrudes radially from the glue inlet joint (3).

5. The leak-proof glue bucket for a dispensing machine according to claim 4, wherein: There are two first claws (401). The two first claws (401) are symmetrically arranged, and a first elastic member (402) is provided between each first claw (401) and the glue leakage prevention joint (2).

6. The leak-proof glue bucket for a dispensing machine according to claim 1, wherein: The plug (203) is a hemispherical structure with a spherical surface facing downwards, and the second glue outlet (202) is a tapered surface structure with a larger upper part and a smaller lower part.

7. A leak-proof glue bucket for a dispensing machine according to claim 1, characterized in that: A sealing plug (5) is provided at the top of the glue bucket body (1). A bracket (6) for positioning it is provided on the side of the glue bucket body (1). A positioning ring (601) cooperating with the sealing plug (5) is provided on the bracket (6), and a second locking mechanism (7) for locking the two is provided between the positioning ring (601) and the sealing plug (5).

8. A leak-proof glue bucket for a dispensing machine according to claim 7, characterized in that: The sealing plug (5) includes a sealing part (501) inserted into the inside of the glue bucket body (1) and a positioning part (502) located above the sealing part (501) and passing through the positioning ring (601). The second locking mechanism (7) includes a second claw (701) rotatably arranged on the positioning part (502) and used for clamping with the positioning ring (601).

9. A leak-proof glue bucket for a dispensing machine according to claim 1, characterized in that: A slide rod (205) is connected to the upper end of the plug (203). The third elastic member (204) is a spring, and it is sleeved on the slide rod (205).

10. A leak-proof glue bucket for a dispensing machine according to claim 1, characterized in that: The glue leakage prevention joint (2) includes an upper joint (206) and a lower joint (207) fixedly connected. The inner peripheral wall of the upper joint (206) protrudes inwards from the inner peripheral wall of the lower joint (207) to form a limit step (208) for limiting the upward movement stroke of the plug (203).

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