Servo drive upper die welding device

Abstract

The utility model discloses a servo drive upper die welding device, and relates to the technical field of medical supply production equipment, the servo drive upper die welding device comprises an upper die assembly, a lower die assembly and a driving mechanism, the upper die assembly comprises an upper die and a first fixing plate, and the upper die is fixedly arranged on the first fixing plate; the lower die assembly comprises a lower die; the driving mechanism comprises a servo motor, a speed reducer and an electric push rod, the servo motor is a linear motor outputting linear motion, the output end of the servo motor is connected with the input end of the speed reducer, the output end of the speed reducer is connected with the electric push rod, and the electric push rod is fixedly connected with the first fixing plate; and the servo motor can drive the electric push rod to do linear motion in the vertical direction, so that the upper mold is close to the lower mold for welding. The servo drive upper die welding device can effectively avoid the problem of oil leakage, and can shorten the movement distance of the die under the condition of stable operation, so that the action time is shortened, and the production speed of a soft bag line is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of medical product production equipment, in particular to a servo-driven upper mold welding device. Background Art

[0002] The function of the peripheral welding station of the soft bag line is to weld the two layers of non-PVC film into one piece to make a bag, and spot weld the polypropylene interface and the non-PVC film material.

[0003] At present, the welding devices of the peripheral welding stations of the soft bag production line all use two gas-liquid booster cylinders to drive the upper mold for welding. Not only is the stroke unadjustable, the movement speed is slow, which limits the improvement of the production speed of the soft bag production line; the gas-liquid booster cylinder is very easy to be damaged and leak oil, which is easy to contaminate the product, and the maintenance period is long after damage. Therefore, there are still shortcomings and deficiencies in the existing technology. Utility Model Content

[0004] The purpose of the utility model is to provide a servo-driven upper mold welding device, which solves the technical problem that the welding devices of the peripheral welding stations of the current soft bag line all use two gas-liquid booster cylinders to drive the upper mold for welding, which not only has an unadjustable stroke and a slow movement speed, limiting the production speed of the soft bag line, but also the gas-liquid booster cylinders are very easy to be damaged and leak oil, which is easy to contaminate the product.

[0005] To achieve the above object, the utility model provides a servo driven upper mold welding device, comprising:

[0006] An upper mold assembly comprises an upper mold and a first fixing plate, wherein the upper mold is fixedly arranged on the first fixing plate;

[0007] A lower mold assembly, including a lower mold;

[0008] The driving mechanism includes a servo motor, a reducer and an electric push rod, wherein the servo motor is a linear motor that outputs linear motion, the output end of the servo motor is connected to the input end of the reducer, the output end of the reducer is connected to the electric push rod, and the electric push rod is fixedly connected to the first fixing plate;

[0009] The servo motor can drive the electric push rod to move linearly in a vertical direction, so that the upper mold is close to the lower mold for welding.

[0010] Preferably, it also includes a guiding mechanism, and the guiding mechanism includes:

[0011] A mounting frame, wherein the mounting frame is fixedly arranged;

[0012] A sleeve, arranged in a vertical direction and located on the mounting frame;

[0013] A guide rod, one end of which is fixedly connected to the first fixing plate, and the other end of which is accommodated in the sleeve and slidably connected to the sleeve.

[0014] Preferably, the number of the sleeves is four, and the sleeves correspond to the guide rods one by one.

[0015] Preferably, a connecting component is further included, and the connecting component is arranged on the top of the first fixing plate, and the electric push rod is fixedly connected to the first fixing plate through the connecting component.

[0016] Preferably, the connecting assembly includes a mounting plate, a connecting plate and a connecting block, the mounting plate is fixedly connected to the first fixed plate, the connecting plate is fixedly arranged on the side of the mounting plate away from the first fixed plate, a limiting portion is arranged inside the connecting plate, the connecting block is at least partially accommodated inside the connecting plate, and a step portion is arranged on the connecting block, and the step portion abuts against the limiting portion.

[0017] Preferably, a side of the connecting block close to the mounting plate is in a spherical structure.

[0018] Preferably, a cooling water channel is provided inside the first fixing plate.

[0019] Preferably, the lower mold assembly further includes a second fixing plate, and the lower mold is fixedly mounted on the second fixing plate.

[0020] Preferably, the guide rod is detachably connected to the first fixing plate via bolts.

[0021] Compared with the above-mentioned background technology, the servo-driven upper mold welding device provided by the utility model utilizes a servo motor to drive the electric push rod to drive the upper mold to reciprocate, which can effectively avoid the problem of oil leakage; and because the servo motor can be started and stopped at any time, the electric push rod can drive the upper mold to move downward when the fixture moves, and the upper mold stops and waits when it moves to the minimum distance that does not affect the movement of the fixture. After the fixture stops moving, the electric push rod continues to move the upper mold downward. After the welding is completed, the electric push rod drives the upper mold to move upward. When the minimum distance that does not affect the movement of the fixture is reached, the fixture can start to move. Under the condition of stable operation, the movement distance of the mold is shortened, thereby reducing the action time and improving the production speed of the soft bag line. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings in the following description are only embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on the provided drawings without paying creative work.

[0023] Figure 1 A schematic diagram of the structure of a servo-driven upper mold welding device provided in an embodiment of the utility model;

[0024] Figure 2 for Figure 1 A left side view of the servo driven upper mold welding device shown;

[0025] Figure 3 for Figure 1 Schematic diagram of the structure of the connected components.

[0026] Figures 1 to 3 Reference numerals in the accompanying drawings: 10, upper mold assembly; 11, upper mold; 12, first fixed plate; 20, lower mold assembly; 21, lower mold; 22, second fixed plate; 30, driving mechanism; 31, servo motor; 32, reducer; 33, electric push rod; 40, guide mechanism; 41, mounting frame; 42, guide rod; 43, sleeve; 50, connecting assembly; 51, mounting plate; 52, connecting plate; 521, limiting portion; 53, connecting block; 531, step portion. DETAILED DESCRIPTION

[0027] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0028] In order to enable those skilled in the art to better understand the present invention, the present invention is further described in detail below in conjunction with the accompanying drawings and specific implementation methods.

[0029] The utility model provides a servo-driven upper mold welding device, which utilizes a servo motor 31 to drive an electric push rod 33 to drive the upper mold 11 to reciprocate, which can effectively avoid the problem of oil leakage and shorten the movement distance of the upper mold 11 under stable operation, thereby reducing the action time and improving the production speed of the soft bag line.

[0030] Please refer to Figure 1 and Figure 2The utility model provides a servo-driven upper mold welding device, including an upper mold assembly 10, a lower mold assembly 20 and a driving mechanism 30, wherein the driving mechanism 30 is used to drive the upper mold assembly 10 to move linearly in the vertical direction, so that the upper mold assembly 10 is close to the lower mold assembly 20, thereby performing a welding operation.

[0031] Please refer to Figure 1 and Figure 2 The driving mechanism 30 includes a servo motor 31, a reducer 32 and an electric push rod 33, wherein the servo motor 31 is a linear motor that outputs linear motion, the output end of the servo motor 31 is transmission-connected to the input end of the reducer 32, and the output end of the reducer 32 is connected to the electric push rod 33.

[0032] The servo motor 31 is used to output linear motion, and the reducer 32 is arranged between the servo motor 31 and the electric push rod 33, and is used to transmit the linear motion output by the servo motor 31 to the electric push rod 33, thereby driving the electric push rod 33 to perform linear motion;

[0033] Moreover, the reducer 32 can decelerate the linear motion output by the servo motor 31, thereby reducing the speed of the linear motion of the electric push rod 33, which is convenient for subsequent welding operations.

[0034] Please refer to Figure 1 and Figure 2 The upper mold assembly 10 includes an upper mold 11 and a first fixed plate 12, one end of the electric push rod 33 away from the reducer 32 is fixedly connected to the first fixed plate 12, and the upper mold 11 is fixedly mounted on the first fixed plate 12. In this embodiment, the first fixed plate 12 is horizontally arranged, the electric push rod 33 is located above the first fixed plate 12, and the upper mold 11 is located below the first fixed plate 12.

[0035] Please refer to Figure 1 and Figure 2 The lower mold assembly 20 includes a lower mold 21 and a second fixed plate 22 , and the lower mold 21 is fixedly mounted on the second fixed plate 22 , wherein the second fixed plate 22 is horizontally arranged and the lower mold 21 is arranged above the second fixed plate 22 .

[0036] As the servo motor 31 works and outputs linear motion, it drives the electric push rod 33 to move linearly in the vertical direction. Since the electric push rod 33 is fixedly connected to the first fixed plate 12, the electric push rod 33 can drive the upper and lower molds 21 to move linearly in the vertical direction.

[0037] It can be understood that the servo motor 31 is a forward and reverse motor. As the servo motor 31 rotates forward and reverse, it can output linear motion to drive the electric push rod 33 to perform reciprocating linear motion in the vertical direction. When the electric push rod 33 performs linear motion to drive the upper mold 11 close to the lower mold 21, the lower mold 21 is combined with the lower mold 21 to perform a welding operation. After the welding operation is completed, the electric push rod 33 performs linear motion to drive the upper mold 11 away from the lower mold 21.

[0038] In some of these embodiments, please refer to Figure 1 and Figure 2 The servo-driven upper mold welding device also includes a guide mechanism 40, which is used to guide the electric push rod 33 when driving the upper mold 11 to move linearly in the vertical direction, thereby ensuring that the upper mold 11 and the lower mold 21 are combined with improved accuracy and ensure the welding effect.

[0039] Please refer to Figure 1 and Figure 2 The guide mechanism 40 includes a mounting frame 41, a guide rod 42 and a sleeve 43 arranged on the mounting frame 41, wherein the mounting frame 41 is fixedly arranged, for example, the mounting frame 41 can be fixedly arranged on the ground or fixedly arranged on other structures, and a plurality of sleeves 43 are arranged on the mounting frame 41, and both ends of the sleeves 43 are openly arranged, and the sleeves 43 are arranged in the vertical direction; the guide rod 42 is fixedly arranged on the first fixed plate 12 in the lower mold assembly 20, and the guide rod 42 is located above the first fixed plate 12, and the guide rod 42 is at least partially accommodated in the sleeve 43 and is slidably connected with the sleeve 43.

[0040] One end of the guide rod 42 is fixedly connected to the first fixed plate 12. In the present embodiment, the guide rod 42 and the first fixed plate 12 are detachably connected by bolts, which are easy to assemble and disassemble, and convenient to install. In other embodiments, the guide rod 42 and the first fixed plate 12 may also be fixedly connected in other ways, such as by a fixing pin, which is not specifically limited.

[0041] Specifically, in this embodiment, the number of sleeves 43 is four, and the number of sleeves 43 is the same as the number of guide rods 42 and corresponds one to one. The four guide rods 42 are respectively accommodated in the four sleeves 43 and are slidably connected to the sleeves 43. In other embodiments, the number of sleeves 43 can be set to two, three, or more, as long as the sleeves 43 and the guide rods 42 are set one to one, and there is no specific limitation.

[0042] In some of these embodiments, please refer to Figure 1 , Figure 2 and Figure 3The servo-driven upper mold welding device also includes a connecting component 50 , through which the electric push rod 33 is fixedly connected to the first fixed plate 12 , and the connecting component 50 is disposed on the top of the first fixed plate 12 .

[0043] The connecting assembly 50 includes a mounting plate 51, a connecting plate 52 and a connecting block 53. The mounting plate 51 is in the shape of a flat plate and is fixedly connected to the first fixed plate 12. The connecting plate 52 is roughly in the shape of a hollow plate and is fixedly arranged on the side of the mounting plate 51 away from the first fixed plate 12. A limiting portion 521 is arranged inside the connecting plate 52. The connecting block 53 is roughly in the shape of a block and is partially accommodated inside the connecting plate 52. The connecting block 53 and the connecting plate 52 are clearance-fitted. A step portion 531 is arranged on the connecting block 53, and the step portion 531 abuts against the limiting portion 521.

[0044] The part of the connecting block 53 located inside the connecting plate 52 can abut against the mounting plate 51, and the side of the connecting block 53 close to the mounting plate 51 is a spherical structure. Through such a setting, when the electric push rod 33 drives the upper mold assembly 10 to move in a straight line in the vertical direction, it can allow the upper mold 11 to produce a small axial deviation within a small range, thereby avoiding jamming.

[0045] In some embodiments, a cooling water channel (not shown) is provided inside the first fixing plate 12. When the equipment is running, the temperature of the upper mold 11 is approximately about 150 degrees Celsius. By introducing cooling water into the cooling water channel, the first fixing plate 12 can be cooled to prevent the high temperature from affecting the guide rod 42 and the electric push rod 33, thereby reducing the service life of the welding device.

[0046] When in use, the servo-driven upper mold welding device provided by the utility model is arranged at a welding station, and is used to weld two layers of non-PVC film circumferences into one body to make a bag, and spot weld the polypropylene interface and the non-PVC film material; when the equipment is running, the clamp clamps the polypropylene interface and the non-PVC film material to the welding station, and the servo motor 31 drives the electric push rod 33 to move downward in the vertical direction, thereby driving the upper mold 11 to move downward, and the upper mold 11 and the lower mold 21 are combined and maintained for a certain period of time before driving the upper mold 11 to return, thereby completing the welding work of the polypropylene interface and the non-PVC film; after welding is completed, the clamp moves out of the welding station with the polypropylene interface and the non-PVC film material made into a bag, and then the next clamp clamps the polypropylene interface and the non-PVC film material to the welding station, and the above operation is repeated.

[0047] The servo-driven upper mold welding device provided by the utility model utilizes a servo motor 31 to drive an electric push rod 33 to drive the upper mold 11 to reciprocate. Since the servo motor 31 can be started and stopped at any time, the electric push rod 33 can drive the upper mold 11 to move downward when the clamp moves. When the upper mold 11 moves to the minimum distance that does not affect the movement of the clamp, it stops and waits. After the clamp stops moving, the electric push rod 33 continues to move the upper mold 11 downward, and merges with the lower mold 21 for a period of time to perform the welding operation. After the welding is completed, the electric push rod 33 drives the upper mold 11 to move upward. When the minimum distance that does not affect the movement of the clamp is reached, the clamp can start to move to bring the next group of interfaces and film materials to the welding station. Through such a setting, the time occupied by a welding cycle is shortened, which can improve the production speed.

[0048] It should be noted that, in this specification, relational terms such as first and second are merely used to distinguish one entity from other entities, but do not necessarily require or imply any actual relationship or order between these entities.

[0049] This article uses specific examples to illustrate the principles and implementation methods of the utility model. The above examples are only used to help understand the method and core ideas of the utility model. It should be pointed out that for ordinary technicians in this technical field, without departing from the principles of the utility model, the utility model can also be improved and modified, and these improvements and modifications also fall within the scope of protection of the utility model.

Claims

1. A servo driven upper mold welding device, characterized in that: include: An upper mold assembly comprises an upper mold and a first fixing plate, wherein the upper mold is fixedly arranged on the first fixing plate; A lower mold assembly, including a lower mold; The driving mechanism includes a servo motor, a reducer and an electric push rod, wherein the servo motor is a linear motor that outputs linear motion, the output end of the servo motor is connected to the input end of the reducer, the output end of the reducer is connected to the electric push rod, and the electric push rod is fixedly connected to the first fixing plate; The servo motor can drive the electric push rod to move linearly in a vertical direction, so that the upper mold is close to the lower mold for welding.

2. The servo driven upper mold welding device according to claim 1, characterized in that: Also included is a guiding mechanism, the guiding mechanism comprising: A mounting frame, wherein the mounting frame is fixedly arranged; A sleeve, arranged in a vertical direction and located on the mounting frame; A guide rod, one end of which is fixedly connected to the first fixing plate, and the other end of which is accommodated in the sleeve and slidably connected to the sleeve.

3. The servo driven upper mold welding device according to claim 2, characterized in that: The number of the sleeves is four, and the sleeves correspond to the guide rods one by one.

4. The servo driven upper mold welding device according to claim 1, characterized in that: It also includes a connecting component, which is arranged on the top of the first fixing plate, and the electric push rod is fixedly connected to the first fixing plate through the connecting component.

5. The servo driven upper mold welding device according to claim 4, characterized in that: The connecting assembly includes a mounting plate, a connecting plate and a connecting block. The mounting plate is fixedly connected to the first fixing plate. The connecting plate is fixedly arranged on a side of the mounting plate away from the first fixing plate. A limiting portion is arranged inside the connecting plate. The connecting block is at least partially accommodated inside the connecting plate. A step portion is arranged on the connecting block, and the step portion abuts against the limiting portion.

6. The servo driven upper mold welding device according to claim 5, characterized in that: The side of the connecting block close to the mounting plate is in a spherical structure.

7. The servo driven upper mold welding device according to claim 1, characterized in that: A cooling water channel is arranged inside the first fixing plate.

8. The servo driven upper mold welding device according to claim 1, characterized in that: The lower mold assembly also includes a second fixing plate, and the lower mold is fixedly mounted on the second fixing plate.

9. The servo driven upper mold welding device according to claim 2, characterized in that: The guide rod is detachably connected to the first fixing plate via bolts.

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