A power assembly of a quantitative dispensing machine

Abstract

A kind of power assembly of quantitative point glue machine, including motor, speed reducer and screw rod;The input shaft of speed reducer is fixedly connected with the output shaft of motor, and the end of the output shaft of speed reducer is provided with inner recess hole;Screw rod one end is inserted into inner recess hole, and is fixedly connected with inner recess hole;Motor and speed reducer are fixed on shell, and screw rod nut is matched and set on screw rod, and screw rod nut is fixed in connecting seat, and connecting seat is movably arranged in shell, connecting seat can move in shell along the output shaft of speed reducer, and connecting seat cannot rotate;Screw rod is provided with bearing assembly between connecting seat and speed reducer, for positioning screw rod, and offsetting the thrust of screw rod to the side of speed reducer.The end of the output shaft of the speed reducer of the application is provided with inner recess hole, one end of the screw rod is inserted into the inner recess hole, and is fixedly connected with the inner recess hole, to reduce the length in the axial direction;The volume of the quantitative machine is reduced, the weight of the quantitative machine is reduced, and the convenience of installation and removal of the quantitative machine is improved.

Description

Technical Field

[0001] This application relates to the field of quantitative dispensing machine technology, and in particular to a power component for a quantitative dispensing machine. Background Technology

[0002] A metering dispensing machine is an industrial device used to precisely control the amount of adhesive dispensed. It ensures that the amount of adhesive in each drop remains consistent during the production process and is widely used in industries such as electronics, LED, and automobiles that require high-precision adhesive application.

[0003] In existing quantitative dispensing machines, the output shaft of the reducer protrudes, and the output shaft of the reducer is connected to the lead screw through a coupling. This results in a relatively long axial length of the product along the output shaft of the reducer, which is inconvenient to use.

[0004] Therefore, we propose a power component for a quantitative dispensing machine. Utility Model Content

[0005] To address the shortcomings of the existing production technology, the applicant provides a power component for a quantitative dispensing machine. The output shaft of the reducer has a recessed hole at its end, and one end of the lead screw is inserted into and fixedly connected to the recessed hole. This reduces the axial length, decreases the volume and weight of the quantitative dispensing machine, and improves the ease of installation and disassembly.

[0006] The technical solution adopted in this application is as follows: A power component for a metering dispensing machine, comprising: Electric motor; The speed reducer has its input shaft fixedly connected to the output shaft of the motor, and the end of the output shaft of the speed reducer is provided with an inner concave hole. A lead screw, one end of which is inserted into a concave hole and fixedly connected to the concave hole; The motor and reducer are both fixed on the housing. A lead screw nut is matched on the lead screw, and the lead screw nut is fixed in the connecting seat. The connecting seat is movably set in the housing. The connecting seat can move axially along the output shaft of the reducer in the housing, and the connecting seat cannot rotate. A bearing assembly is provided between the lead screw and the reducer to position the lead screw and counteract the thrust of the lead screw toward the reducer.

[0007] Its further features are: The housing is fixed to a chamber at the end away from the reducer, and a heating structure is provided outside the chamber.

[0008] It also includes a measuring rod, which is a hollow tube with one end closed. The measuring rod is sleeved on the outside of the lead screw, and one end of the measuring rod is fixedly connected to the connecting seat. The closed end of the measuring rod is located in the cavity.

[0009] A first keyway is provided in the concave hole, and a second keyway is provided at the end of the lead screw that is located in the concave hole. The same key is provided in the first keyway and the second keyway.

[0010] The chamber is provided with an inlet and an outlet. The inlet is connected to the feed valve, and the outlet is connected to the discharge valve.

[0011] The bearing assembly includes a first angular contact bearing, a second angular contact bearing, a third angular contact bearing, a fourth angular contact bearing, and a connecting block. The first, second, third, and fourth angular contact bearings are sequentially sleeved on the lead screw. The inner rings of the first, second, third, and fourth angular contact bearings are all fixedly connected to the lead screw, and the outer rings of the first, second, third, and fourth angular contact bearings are all fixedly connected to the connecting block. The connecting block is fixedly connected to the housing.

[0012] The first angular contact bearing is installed near the reducer side, with its contact angle facing the reducer side. The contact angles of the second, third, and fourth angular contact bearings are all installed facing the metering rod side.

[0013] The beneficial effects of this application are as follows: This application features a compact and reasonable structure, and is easy to operate. The output shaft of the reducer has a concave hole at its end, and one end of the lead screw is inserted into the concave hole and fixedly connected to it. The output shaft and the lead screw of the reducer are connected in this way, eliminating the need for a coupling and thus reducing the axial length. The measuring rod is a hollow tube with one end closed. The measuring rod is sleeved on the outside of the lead screw, and one end of the measuring rod is fixedly connected to the connecting seat. This allows the measuring rod to utilize the length of the lead screw, further reducing the axial length, decreasing the volume and weight of the metering machine, and improving the ease of installation and disassembly of the metering machine.

[0014] In addition, this application also has the following advantages: (1) The first angular contact bearing is installed on the side closer to the reducer, with its contact angle facing the reducer. The contact angles of the second, third, and fourth angular contact bearings are all installed on the side of the metering rod. The second, third, and fourth angular contact bearings can counteract the thrust transmitted from the metering rod to the lead screw, thereby improving the service life of the lead screw. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the structure of this application.

[0016] Figure 2 for Figure 1 Schematic diagram of the AA section.

[0017] Figure 3 This is a cross-sectional schematic diagram of the speed reducer, lead screw, and bearing assembly of this application.

[0018] Figure 4 This is a schematic diagram of the motor and reducer of this application.

[0019] Figure 5 This is a schematic diagram of the lead screw and key of this application.

[0020] Figure 6 This is a schematic diagram of the lead screw in this application.

[0021] The components include: 1. Motor; 2. Reducer; 3. Lead screw; 4. Bearing assembly; 5. Measuring rod; 6. Chamber; 7. Lead screw nut; 8. Connecting seat; 9. Housing; 201. Recessed hole; 202. First keyway; 301, Second keyway; 302, Key; 401. First angular contact bearing; 402. Second angular contact bearing; 403. Third angular contact bearing; 404. Fourth angular contact bearing; 405. Connecting block. Detailed Implementation

[0022] The specific embodiments of this application are described below with reference to the accompanying drawings.

[0023] like Figures 1-6 As shown, a power component of a quantitative dispensing machine includes a motor 1, a reducer 2, a lead screw 3, a bearing assembly 4, a lead screw nut 7, and a connecting seat 8.

[0024] The output shaft of motor 1 is fixedly connected to the input shaft of reducer 2. Both motor 1 and reducer 2 are fixedly connected to housing 9.

[0025] The output shaft of the reducer 2 has a recessed hole 201 at its end, and one end of the lead screw 3 extends into the recessed hole 201 and is fixedly connected.

[0026] A lead screw nut 7 is matched on the lead screw 3. The lead screw nut 7 is fixed in the connecting seat 8. The connecting seat 8 is movably disposed in the housing 9. The connecting seat 8 can move axially along the output shaft of the reducer 2 in the housing 9, and the connecting seat 8 cannot rotate.

[0027] When motor 1 is working, the output shaft of motor 1 drives the input shaft of reducer 2 to rotate, which in turn drives the output shaft of reducer 2 to rotate. The output shaft of reducer 2 drives the lead screw 3 to rotate, which in turn drives the connecting seat 8 and the lead screw nut 7 to move.

[0028] A chamber 6 is fixed at the end of the housing 9 away from the reducer 2. The measuring rod 5 is a hollow tube with one end closed. The measuring rod 5 is sleeved on the outside of the lead screw 3. One end of the measuring rod 5 is fixedly connected to the connecting seat 8. When the connecting seat 8 moves, it will drive the measuring rod 5 to move. The closed end of the measuring rod 5 is inside the chamber 6.

[0029] In one embodiment, a second keyway 301 is provided at one end of the lead screw 3 located in the concave hole 201, a first keyway 202 is provided in the concave hole 201, and the same key 302 is provided in the first keyway 202 and the second keyway 301, that is, the output shaft of the reducer 2 and the lead screw 3 are connected by the key 302.

[0030] In one embodiment, the chamber 6 is provided with an inlet and an outlet, the inlet being connected to a feed valve and the outlet being connected to a discharge valve.

[0031] The metering rod 5 is subjected to a thrust from the glue towards the reducer 2 within the chamber 6. The metering rod 5, through the connecting seat 8 and the lead screw nut 7, presses against the lead screw 3 towards the reducer 2. The thrust of the metering rod 5 on the lead screw 3 is counteracted by the bearing assembly 4. The lead screw 3 is positioned between the connecting seat 8 and the reducer 2 by the bearing assembly 4, which also counteracts the thrust of the lead screw 3 towards the reducer 2.

[0032] In one embodiment, a heating structure is provided outside the chamber 6 to heat the adhesive inside the chamber 6. During the dispensing process, the chamber 6 needs to be continuously heated.

[0033] Furthermore, the bearing assembly 4 can position the lead screw 3, preventing friction between the lead screw 3 and the metering rod 5 from reducing its service life.

[0034] In one embodiment, the bearing assembly 4 includes a first angular contact bearing 401, a second angular contact bearing 402, a third angular contact bearing 403, a fourth angular contact bearing 404, and a connecting block 405.

[0035] The first angular contact bearing 401, the second angular contact bearing 402, the third angular contact bearing 403, and the fourth angular contact bearing 404 are sequentially sleeved on the lead screw 3. The inner rings of the first angular contact bearing 401, the second angular contact bearing 402, the third angular contact bearing 403, and the fourth angular contact bearing 404 are all fixedly connected to the lead screw 3. The outer rings of the first angular contact bearing 401, the second angular contact bearing 402, the third angular contact bearing 403, and the fourth angular contact bearing 404 are all fixedly connected to the connecting block 405. The connecting block 405 is fixedly connected to the housing 9.

[0036] In one embodiment, the first angular contact bearing 401 is mounted closer to the reducer 2, with its contact angle facing the reducer 2. The contact angles of the second angular contact bearing 402, the third angular contact bearing 403, and the fourth angular contact bearing 404 are all mounted with their contact angles facing the metering rod 5. The second angular contact bearing 402, the third angular contact bearing 403, and the fourth angular contact bearing 404 can counteract the thrust transmitted from the metering rod 5 to the lead screw 3, thereby improving the service life of the lead screw 3.

[0037] In practical use, the metering rod 5 is pushed by the glue towards the reducer 2 in the chamber 6. The metering rod 5 squeezes the lead screw 3 towards the reducer 2 through the connecting seat 8 and the lead screw nut 7. The second angular contact bearing 402, the third angular contact bearing 403 and the fourth angular contact bearing 404 can offset the push force transmitted from the metering rod 5 to the lead screw 3. When the motor 1 is working, the output shaft of the motor 1 drives the input shaft of the reducer 2 to rotate, which in turn drives the output shaft of the reducer 2 to rotate. The output shaft of the reducer 2 drives the lead screw 3 to rotate, which in turn drives the connecting seat 8 and the lead screw nut 7 to move. The connecting seat 8 drives the metering rod 5 to move to achieve glue dispensing.

[0038] The above description is an explanation of this application and not a limitation thereof. The scope of this application is defined by the claims. Within the scope of protection of this application, any form of modification may be made.

Claims

1. A power component for a quantitative dispensing machine, characterized in that, include: Motor (1); The reducer (2) has its input shaft fixedly connected to the output shaft of the motor (1), and the output shaft of the reducer (2) has an inner concave hole (201) at its end. The lead screw (3) has one end inserted into the concave hole (201) and is fixedly connected to the concave hole (201); Among them, the motor (1) and the reducer (2) are both fixed on the housing (9), and the lead screw (3) is matched with the lead screw nut (7). The lead screw nut (7) is fixed in the connecting seat (8). The connecting seat (8) is movably set in the housing (9). The connecting seat (8) can move axially along the output shaft of the reducer (2) in the housing (9), and the connecting seat (8) cannot rotate. A bearing assembly (4) is provided between the lead screw (3) and the reducer (2) to position the lead screw (3) and to counteract the thrust of the lead screw (3) toward the reducer (2).

2. The power component of a quantitative dispensing machine as described in claim 1, characterized in that: A chamber (6) is fixed at the end of the housing (9) away from the reducer (2), and a heating structure is provided outside the chamber (6).

3. The power component of a quantitative dispensing machine as described in claim 2, characterized in that: It also includes a measuring rod (5), which is a hollow tube with one end closed. The measuring rod (5) is sleeved on the outside of the screw (3). One end of the measuring rod (5) is fixedly connected to the connecting seat (8). The closed end of the measuring rod (5) is located in the chamber (6).

4. The power component of a quantitative dispensing machine as described in claim 1, characterized in that: The concave hole (201) is provided with a first keyway (202), and the end of the lead screw (3) located in the concave hole (201) is provided with a second keyway (301). The first keyway (202) and the second keyway (301) are provided with the same key (302).

5. The power component of a quantitative dispensing machine as described in claim 2, characterized in that: The chamber (6) is provided with an inlet and an outlet. The inlet is connected to the feed valve, and the outlet is connected to the discharge valve.

6. The power component of a quantitative dispensing machine as described in claim 1, characterized in that: The bearing assembly (4) includes a first angular contact bearing (401), a second angular contact bearing (402), a third angular contact bearing (403), a fourth angular contact bearing (404), and a connecting block (405). The first angular contact bearing (401), the second angular contact bearing (402), the third angular contact bearing (403), and the fourth angular contact bearing (404) are sequentially sleeved on the lead screw (3). The inner rings of the first angular contact bearing (401), the second angular contact bearing (402), the third angular contact bearing (403), and the fourth angular contact bearing (404) are all fixedly connected to the lead screw (3). The outer rings of the first angular contact bearing (401), the second angular contact bearing (402), the third angular contact bearing (403), and the fourth angular contact bearing (404) are all fixedly connected to the connecting block (405). The connecting block (405) is fixedly connected to the housing (9).

7. The power component of a quantitative dispensing machine as described in claim 6, characterized in that: The first angular contact bearing (401) is located near the reducer (2), and the contact angle of the first angular contact bearing (401) is installed towards the reducer (2). The contact angles of the second angular contact bearing (402), the third angular contact bearing (403), and the fourth angular contact bearing (404) are all installed towards the metering rod (5).

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