Vacuum needle cleaning mechanism

Abstract

The utility model discloses a vacuum needle cleaning mechanism which comprises a cavity, a pressing block and a needle. An air inlet inner cavity is formed in one end of the cavity; a glue outlet channel is formed in the cavity, the air inlet head of the glue outlet channel is arranged in the middle of the air inlet inner cavity, and the air inlet head of the glue outlet channel is provided with a first conical surface; one end of the needle head penetrates through the pressing block and is arranged in the glue outlet channel; a second conical surface which is matched with the first conical surface and extends outwards is arranged on one face of the pressing block, when the pressing block is installed on the cavity, the second conical surface and the first conical surface are correspondingly attached, an air inlet gap is formed in the attaching position, air enters the air inlet inner cavity to form an air knife when passing through the air inlet gap, and residual glue on the outer wall of the needle head is removed through the air knife. A fine air inlet gap is formed by the two conical surfaces on the cavity and the pressing block, when air enters the cavity and passes through the gap, an air knife is formed, and residual glue on the outer wall of a needle head is removed through the air knife.

Description

Technical Field

[0001] The utility model relates to the technical field of glue dispensing and glue filling needles, in particular to a vacuum needle cleaning mechanism. Background Art

[0002] The vacuum glue dispensing machine mainly places the components in a sealed chamber, exhausts the air by vacuuming, and injects the liquid potting material into the container through the glue dispensing needle. It is used in lighting, automobile and other industries. In recent years, the glue dispensing machine has been developing in the direction of intelligent automation, high efficiency and high precision. The glue dispensing needle cleaning mechanism is one of the important mechanisms of the glue dispensing machine. The unclean needle cleaning directly affects the subsequent glue dispensing yield.

[0003] At present, when various industries use needle vacuum glue filling machines for glue filling production, the cleaning of the residual glue on the outer wall of the glue filling needle is mainly done by wiping it with a cleaning belt (dust-free cloth) driven by a motor. There are several defects in the solution of wiping the needle: the motor drive and other transverse devices are used, which are more complicated in structure and have high manufacturing costs; the cleaning belt used in the wiping method needs to be replaced regularly, which increases the workload of the operator, and the cleaning belt is a consumable material, which also increases the cost. Utility Model Content

[0004] In view of the problems existing in the prior art, the utility model provides a vacuum needle cleaning mechanism, which adopts a relatively simple new structure and uses air blowing to generate an air knife in the inner cavity, and uses the air knife to clean the residual glue on the outer wall of the needle.

[0005] In order to achieve the above purpose, the technical solution of the utility model is as follows:

[0006] The utility model provides a vacuum needle cleaning mechanism, comprising: a cavity, a pressing block, and a needle;

[0007] An air intake cavity is provided at one end of the cavity;

[0008] A glue outlet channel is provided in the cavity, and an air inlet head of the glue outlet channel is placed in the middle of the air inlet inner cavity, and a conical surface 1 is provided on the air inlet head of the glue outlet channel;

[0009] One end of the needle passes through the pressing block and is placed in the glue outlet channel;

[0010] One side of the pressing block is provided with a second conical surface which is adapted to the first conical surface and extends outward. When the pressing block is installed on the cavity, the second conical surface is correspondingly fitted with the first conical surface, and an air intake gap is provided at the fitting position, which is used to form a wind knife when the air enters the air intake cavity through the air intake gap, and the residual glue on the outer wall of the needle is removed by the wind knife.

[0011] Preferably, the vacuum needle cleaning mechanism further comprises a mounting block and a sealing assembly; the mounting block is mounted on the pressing block; the sealing assembly is arranged in the mounting groove of the pressing block and sleeved on the needle, so as to seal the needle and the pressing block.

[0012] Preferably, the vacuum needle cleaning mechanism further comprises an air inlet connector; the air inlet connector is arranged on the cavity body and communicated with the air inlet inner cavity.

[0013] Preferably, the vacuum needle cleaning mechanism further comprises a glue outlet joint, which is arranged at the other end of the cavity and communicated with the glue outlet channel.

[0014] Preferably, a plurality of air intake holes are provided on the side wall of the air intake inner cavity, and one end of the air intake connector is placed in the air intake hole.

[0015] Preferably, the sealing component is configured as a sealing ring.

[0016] The technical solution of the utility model has the following beneficial effects:

[0017] The utility model forms a small air intake gap through two conical surfaces on the cavity and the pressure block. When the air enters the cavity through the gap, a wind knife is formed, and the residual glue on the outer wall of the needle is removed by the wind knife. The entire cleaning mechanism has few parts, simple structure, and convenient disassembly and assembly, which greatly reduces the time and manpower for cleaning and maintenance; the utility model uses air blowing cleaning method to directly remove the residual glue and can be received by the waste box. It is easy to operate, simple in parts, low in processing difficulty, and reduces processing costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the structure of the utility model;

[0019] Figure 2 This is an exploded view of the utility model;

[0020] Figure 3 This is a schematic diagram of the cavity structure of the utility model;

[0021] Figure 4 This is a schematic diagram of the briquetting structure of the utility model;

[0022] Figure 5 It is a schematic diagram of the air intake direction of the utility model. DETAILED DESCRIPTION

[0023] The embodiments of the present invention are described in detail below, and 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 to be used to explain the present invention, and should not be construed as limiting the present invention.

[0024] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0025] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present utility model, the meaning of "plurality" is two or more, unless otherwise clearly and specifically defined.

[0026] In the present invention, unless otherwise clearly specified and limited, the terms "install", "connect", "connect", "fix" and the like 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 it can be an indirect connection through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0027] In the present invention, unless otherwise expressly specified or limited, a first feature is “on” or “below” a second feature.

[0028] “Under” 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, the first feature being “above”, “above”, and “above” the second feature includes the first feature being directly above and obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. The first feature being “under”, “below”, and “below” the second feature includes the first feature being directly below and obliquely below the second feature, or simply means that the first feature is lower in level than the second feature.

[0029] Reference Figures 1 to 5 The utility model provides a vacuum needle cleaning mechanism, which is characterized by comprising: a cavity 1, a pressing block 2, and a needle 3;

[0030] An air intake cavity 102 is formed at one end of the cavity 1;

[0031] The cavity 1 is provided with a glue outlet channel 101, and the air inlet head of the glue outlet channel 101 is placed in the middle of the air inlet inner cavity 101, and the air inlet head of the glue outlet channel 101 is provided with a conical surface 101a; wherein the glue outlet channel 101 is used to remove the residual glue on the outer wall of the needle 3 along the glue outlet channel 101;

[0032] One end of the needle 3 passes through the pressing block 2 and is placed in the glue outlet channel 101;

[0033] One side of the pressing block 2 is provided with a second conical surface 201 which is adapted to the first conical surface 101a and extends outward. When the pressing block 2 is installed on the cavity 1, the second conical surface 201 and the first conical surface 101a are correspondingly fitted, and an air intake gap is provided at the fitting position, which is used to form a wind knife when the air intake of the air intake inner cavity 102 passes through the air intake gap, and the residual glue on the outer wall of the needle 3 is removed by the wind knife.

[0034] Furthermore, the vacuum needle cleaning mechanism also includes a mounting block 6 and a sealing assembly 5; the mounting block 6 is mounted on the pressing block 2, and the mounting block 6 can be detachably mounted on the pressing block 2 by screws; the sealing assembly 5 is arranged in the mounting groove of the pressing block 2 and is sleeved on the needle 3, and is used to seal the needle 3 and the pressing block 2; the sealing assembly 5 is configured as a sealing ring, which improves the sealing performance of the needle 3 and the pressing block 2, and prevents the gas entering the air inlet cavity 102 from overflowing, affecting the efficiency of removing residual glue on the outer wall of the needle 3.

[0035] Furthermore, the vacuum needle cleaning mechanism also includes an air inlet connector 4; the air inlet connector 4 is arranged on the cavity 1 and is connected to the air inlet cavity 102, the vacuum needle cleaning mechanism also includes a glue outlet connector 4, which can be connected to an external waste box to collect residual glue waste, the glue outlet connector 4 is arranged at the other end of the cavity 1 and is connected to the glue outlet channel 101, and is used to remove the residual glue in the glue outlet channel 101 through the glue outlet connector 4, and a plurality of air inlet holes 103 are also provided on the side wall of the air inlet cavity 102, one end of the air inlet connector 4 is placed in the air inlet hole 103, and the air inlet hole 103 is provided with two, which can deliver air at the same time, wherein the air inlet connector 4 can deliver gas into the air inlet cavity 102 through the air inlet hole 103.

[0036] Working principle of this utility model:

[0037] Insert the needle 3 into the cavity 1, and then blow air into the air inlet cavity 102 through the air inlet connector 4, so that the air in the air inlet cavity 102 passes through the air inlet gap to form a wind knife to remove the residual glue, and at the same time, the residual glue removed from the glue outlet channel 101 is discharged through the glue outlet connector 7.

[0038] The above description is only a preferred embodiment of the utility model, and does not limit the patent scope of the utility model. All equivalent structural changes made by using the contents of the utility model specification and drawings under the utility model concept, or directly / indirectly used in other related technical fields are included in the patent protection scope of the utility model.

Claims

1. A vacuum needle cleaning mechanism, characterized in that: include: Cavity, block, needle; An air intake cavity is provided at one end of the cavity; A glue outlet channel is provided in the cavity, and an air inlet head of the glue outlet channel is placed in the middle of the air inlet inner cavity, and a conical surface 1 is provided on the air inlet head of the glue outlet channel; One end of the needle passes through the pressing block and is placed in the glue outlet channel; One side of the pressing block is provided with a second conical surface which is adapted to the first conical surface and extends outward. When the pressing block is installed on the cavity, the second conical surface is correspondingly fitted with the first conical surface, and an air intake gap is provided at the fitting position, which is used to form a wind knife when the air enters the air intake cavity through the air intake gap, and the residual glue on the outer wall of the needle is removed by the wind knife.

2. The vacuum needle cleaning mechanism according to claim 1, characterized in that: The vacuum needle cleaning mechanism also includes a mounting block and a sealing assembly; the mounting block is mounted on the pressing block; the sealing assembly is arranged in the mounting groove of the pressing block and sleeved on the needle, and is used to seal the needle and the pressing block.

3. The vacuum needle cleaning mechanism according to claim 1, characterized in that: The vacuum needle cleaning mechanism also includes an air inlet connector; the air inlet connector is arranged on the cavity and is connected to the air inlet inner cavity.

4. The vacuum needle cleaning mechanism according to claim 3, characterized in that: The vacuum needle cleaning mechanism also includes a glue outlet joint, which is arranged at the other end of the cavity and communicated with the glue outlet channel.

5. The vacuum needle cleaning mechanism according to claim 3, characterized in that: A plurality of air intake holes are also provided on the side wall of the air intake inner cavity, and one end of the air intake connector is placed in the air intake hole.

6. The vacuum needle cleaning mechanism according to claim 2, characterized in that: The sealing component is configured as a sealing ring.

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