Material shell welding equipment

Abstract

The utility model relates to material shell welding equipment in the technical field of welding machines, which comprises a rack, a hot melting plate and a mold pressing mechanism, a horizontally arranged guide rod is arranged between side frames, mold closing plates are arranged in the middle of the guide rod, a mold plate is arranged between the two mold closing plates, and the mold pressing mechanism comprises a mold closing motor, a threaded sleeve and a lead screw. The threaded sleeve is arranged in the middle of the side frame, the lead screw is in threaded connection with the center of the threaded sleeve, one end of the lead screw is rotatably connected with the mold plates, and the mold closing plate can be movably connected between the two mold plates in an abutting mode through the lead screw; according to the technical scheme of the utility model, the collision distance between the Pick ball material shell in the middle cavity of the model plate and the hot melting plate can be accurately controlled with small difference, the melting degree of the welding plane of the Pick ball shell is effectively controlled, burrs on the surface of the Pick ball shell are reduced, and the diameter of the ball is 7.29-7.54 cm. And the maximum circle diameter deviation is not greater than 0.51 mm, so that the weight of the ball is ensured to be between 22.1 g and 26.5 g of the standard weight.

Description

Technical Field

[0001] The utility model relates to the technical field of welding machines, in particular to shell welding equipment. Background Art

[0002] Pickleball is a sport of hitting a ball with a racket. It originated from Benbridge Island in Seattle, USA. It is said to be a hybrid sport of tennis, badminton and table tennis. The court for pickleball is exactly the same as that for badminton. Among them, the dimensions of pickleball are: the diameter of the ball should be 7.29 cm to 7.54 cm. The maximum circle diameter deviation is no more than 0.51mm, and the weight of the ball should be between 22.1 and 26.5 grams. The sphere should have 26-40 round holes, and the hole spacing and the overall design of the ball should conform to the flight characteristics.

[0003] The commonly used manufacturing process for pickle balls is injection molding, and then ultrasonic welding is used to weld the two hemispheres that have been injected into a spherical shape. The existing pickle ball welding equipment generally consists of two model plates with hemispherical cavities that are pushed together by a cylinder to form a butt joint. However, the cylinder drive method mainly uses an air compressor to intake and pressurize the inside of the cylinder. There is a deviation in the amount of gas injected into the cylinder, resulting in low precision of the cylinder's propulsion stroke, and it is difficult to control the moving stroke distance of the model plate. It is easy to cause the welding plane of the pickle ball shell to transitionally fit with the hot melt plate, resulting in a large amount of glue overflow on the surface of the pickle ball after being welded into a spherical shape. Therefore, in view of these current situations, it is urgent to develop a shell welding equipment to meet the needs of actual use. Utility Model Content

[0004] The utility model aims to provide a shell welding device for solving the problem that the cylinder-driven method is not easy to control the moving travel distance of the model plate, which easily leads to the transition fit between the welding plane of the pickle ball shell and the hot melt plate, resulting in a large amount of glue overflow on the surface of the pickle ball after being welded into a spherical shape.

[0005] In order to solve the above technical problems, the utility model adopts the following technical solutions:

[0006] A shell welding device comprises a frame, a feeding mechanism, a die pressing mechanism and a hot melt plate, side frames are arranged on both sides of the top of the frame, horizontal guide rods are arranged between the side frames, two movable clamping plates are arranged in the middle of the guide rods, model plates are respectively arranged between the two clamping plates, and the inner walls of the model plates are provided with cavities for placing the shell, the die pressing mechanisms are respectively arranged on the two outer sides of the side frames, the die pressing mechanism comprises a clamping motor, a threaded sleeve and a screw rod, the threaded sleeve is rotatably arranged horizontally in the middle of the side frame, the screw rod is threadedly connected to the center of the threaded sleeve, one end of the screw rod is rotatably connected to an end face of the model plate away from the cavity, the clamping motor The output shaft of the machine is transmission connected with the screw rod, and the closing mold plate can be moved and abutted between the two model plates through the screw rod. The hot melt plate is movably connected above the two model plates through the pressing mechanism, and the hot melt plate can be moved between the two model plates through the pressing mechanism. The feeding mechanism is arranged at one end of the frame away from the die pressing mechanism. The feeding mechanism includes a feeding rack, a slide rail and two support plates. A rotating shaft is provided on one side of the two support plates. The two support plates are rotatably connected to the top of the feeding rack through the rotating shaft. The bottom of the feeding rack is movably connected to the top surface of the frame through the slide rail. The feeding rack and the two support plates can move between the two model plates through the slide rail.

[0007] In the above description, as a further solution, a first synchronous wheel is provided at the output end of the mold closing motor, a second synchronous wheel is provided at the end of the threaded sleeve away from the model plate, the second synchronous wheel is fixedly connected to the threaded sleeve by sleeve connection, and the first synchronous wheel and the second synchronous wheel are connected by a synchronous belt.

[0008] In the above description, as a further solution, the pressing mechanism includes a fixed frame, a lower pressing plate and a first cylinder. The fixed frame is composed of a horizontally arranged top plate and a plurality of vertically arranged frame rods, and the four corners of the lower pressing plate can be slidably connected to the middle part of the frame rods. The first cylinder is vertically arranged below the fixed frame, and the output end of the first cylinder is fixedly connected to the bottom end surface of the lower pressing plate, and the hot melt plate is vertically arranged on the bottom end surface of the lower pressing plate.

[0009] In the above description, as a further solution, a plurality of horizontally arranged ejection cylinders are provided on one end surface of the closing plate away from the model plate, and the output ends of the ejection cylinders can extend to the inside of the cavity.

[0010] In the above description, as a further solution, a feeding plate is provided on the top surface of the support plate, and a plurality of placement holes for placing material shells are opened in the middle of the feeding plate. A feeding cylinder is provided between the feeding plate and the support plate, and the output end of the feeding cylinder is fixedly connected to the bottom surface of the feeding plate. A plurality of vertically arranged positioning pins are provided in the middle of the support plate, and an outward expansion spring is provided between the plurality of positioning pins from the top end of the positioning pin to the inside of the placement hole, and the outer wall of the outward expansion spring is in outward contact with the positioning pin.

[0011] In the above description, as a further solution, a support plate on one side is provided with a shell adjustment mechanism, the shell adjustment mechanism includes a driving rack, a plurality of rotating gears and an adjusting cylinder, the driving rack is horizontally movably arranged on the top surface of the support plate through the adjusting cylinder, the rotating gears are rotatably arranged on the side walls of the driving rack, the rotating gears are meshed with the driving rack for transmission, and the positioning pin located on one side of the shell adjustment mechanism is arranged inside the rotating gear.

[0012] In the above description, as a further solution, a first gear is provided at one end of the rotating shaft, a second cylinder is provided on the side of the frame close to the first gear, a first rack is provided at the output end of the second cylinder, and the first gear is meshed with the first rack for transmission.

[0013] In the above description, as a further solution, a vertically arranged driving motor is provided at the bottom of the frame, a second gear is provided at the end of the driving motor, a second rack is provided on one side of the slide rail, and the second gear is meshed with the second rack for transmission.

[0014] In the above description, as a further solution, a deburring mechanism is also provided at the bottom of the frame, and the deburring mechanism includes a lifting cylinder and a burr removal plate, the burr removal plate is vertically arranged at the output end of the lifting cylinder, and the burr removal plate is arranged below between the two model plates through the lifting cylinder, and the burr removal plate can be moved between the two model plates through the lifting cylinder, and a plurality of burr removal through holes are opened in the middle of the burr removal plate, and the burr removal through holes are arranged one-to-one with the cavity.

[0015] In the above description, as a further solution, a plurality of exit springs are respectively provided on both sides of the hot melt plate, one end of the exit spring is respectively horizontally arranged on the end surfaces of both sides of the hot melt plate, and the plurality of exit springs respectively maintain the same horizontal position with the corresponding cavities.

[0016] The beneficial effects produced by the utility model are as follows:

[0017] The shell welding equipment of the present application comprises a die pressing mechanism composed of a die closing motor, a threaded sleeve and a screw rod, which can accurately control the movement stroke of the die closing plate, so that the contact distance between the pickle ball shell in the cavity of the model plate and the hot melt plate can be accurately and closely controlled, thereby effectively controlling the melting degree of the welding plane of the pickle ball shell, avoiding the transition fitting between the welding plane of the pickle ball shell and the hot melt plate, and preventing a large amount of glue overflow on the surface of the pickle ball, thereby reducing the burrs on the surface of the pickle ball shell. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the three-dimensional structure of a shell welding device according to the utility model at a first angle;

[0019] Figure 2 It is a schematic diagram of the three-dimensional structure of a shell welding device according to the utility model at a second angle;

[0020] Figure 3 It is a schematic diagram of the structure of a shell welding device described in the utility model from a top view;

[0021] Figure 4 for Figure 3 Schematic diagram of the cross-sectional structure along the AA direction;

[0022] Figure 5 for Figure 4 A schematic diagram of the partially enlarged structure of C in the middle;

[0023] Figure 6 for Figure 3 Schematic diagram of the cross-sectional structure along the BB direction;

[0024] Figure 7 for Figure 6 A schematic diagram of the partially enlarged structure of D in the middle;

[0025] Figure 8 It is a structural schematic diagram of a feeding mechanism in a shell welding device described in the utility model;

[0026] Fig. 9 It is a cross-sectional structural schematic diagram of a feeding mechanism in a shell welding device described in the utility model;

[0027] Fig.10 for Fig. 9 Schematic diagram of the local enlarged structure of E in the middle

[0028] In the figure: 1-frame, 11-side frame, 12-guide rod, 13-combination template, 2-feeding mechanism, 21-feeding frame, 22-slide rail, 23-support plate, 24-feeding plate, 241-placement hole, 242-feeding cylinder, 25-positioning pin, 251-outward expansion spring, 26-rotating shaft, 261-first gear, 27-second cylinder, 271-first rack, 28-driving motor, 281-second gear, 29-second rack, 3-mold plate, 31-cavity, 4-die pressing mechanism, 41 -Mold clamping motor, 42-first synchronous wheel, 43-second synchronous wheel, 44-screw, 45-threaded sleeve, 5-hot melt plate, 51-exit spring, 6-pressing mechanism, 61-fixed frame, 611-top plate, 612-frame rod, 62-pressing plate, 63-first cylinder, 8-return cylinder, 9-deburring mechanism, 91-lifting cylinder, 92-burr removing plate, 921-burr removing through hole, 10-housing adjustment mechanism, 101-driving rack, 102-rotating gear, 103-adjusting cylinder. DETAILED DESCRIPTION

[0029] In order to facilitate the understanding of those skilled in the art, the present invention is further described below in conjunction with the embodiments and drawings, and the contents mentioned in the implementation modes are not intended to limit the present invention. The present invention is described in detail below in conjunction with the drawings.

[0030] See also Figure 1-10 A shell welding device specifically implemented therein comprises a frame 1, a die pressing mechanism 4 and a hot melt plate 5, side frames 11 are arranged on both sides of the top of the frame 1, horizontal guide rods 12 are arranged between the side frames 11, two movable clamping plates 13 are arranged in the middle of the guide rods 12, model plates 3 are arranged between the two clamping plates 13, the inner walls of the model plates 3 are provided with cavities 31 for placing the shell, and the die pressing mechanisms 4 are arranged on the two outer sides of the side frames 11 respectively;

[0031] The die pressing mechanism 4 includes a die closing motor 41, a threaded sleeve 45 and a screw rod 44. The threaded sleeve 45 is rotatably arranged horizontally in the middle of the side frame 11. The screw rod 44 is threadedly connected to the center of the threaded sleeve 45. One end of the screw rod 44 is rotatably connected to an end surface of the model plate 3 away from the cavity 31. The output shaft of the die closing motor 41 is transmission-connected to the screw rod 44. The die closing plate 13 can be moved to abut between the two model plates 3 through the screw rod 44.

[0032] The hot melt plate 5 is movably connected above the two model plates 3 through the pressing mechanism 6, and the hot melt plate 5 can be moved between the two model plates 3 through the pressing mechanism 6, and a plurality of exit springs 51 are respectively provided on both sides of the hot melt plate 5, one end of the exit spring 51 is respectively horizontally arranged on the end surfaces of both sides of the hot melt plate 5, and the plurality of exit springs 51 respectively maintain a uniform horizontal position with the corresponding cavities; after the hot melting of the pickle ball shell on both sides of the hot melt plate 5 is completed, since the plastic has a certain adhesion, at this time, the exit spring 51 can, when the model plate 3 is away from the hot melt plate 5, through the elastic stress of the exit spring 51, separate the pickle ball shell from the hot melt plate 5 to one side of the model plate 3, so that the pickle ball shell still remains in the cavity 31 of the model plate 3.

[0033] The die pressing mechanism 4 composed of the mold closing motor 41, the threaded sleeve 45 and the screw 44 can accurately control the movement stroke of the closing plate 13, so that the interference distance between the pickle ball shell in the cavity 31 of the model plate 3 and the hot melt plate 5 can be accurately and closely controlled, effectively controlling the melting degree of the welding plane of the pickle ball shell, avoiding the excessive fitting between the welding plane of the pickle ball shell and the hot melt plate 5, and preventing a large amount of glue overflow on the surface of the pickle ball, thereby reducing burrs on the surface of the pickle ball shell.

[0034] Specifically, Figure 2As shown, the output end of the mold closing motor 41 is provided with a first synchronous wheel 42, and the end of the threaded sleeve 45 away from the model plate 3 is provided with a second synchronous wheel 43, the second synchronous wheel 43 is sleeved and fixedly connected with the threaded sleeve 45, and the first synchronous wheel 42 and the second synchronous wheel 43 are transmission connected via a synchronous belt (not shown); wherein the mold closing motor 41 can preferably be composed of a servo motor or a stepper motor, and the rotation amount of the threaded sleeve 45 can be accurately controlled by the servo motor or the stepper motor, and the rotation amount is converted into the translation amount of the model plate 3 and the closing mold plate 13 through the threaded connection between the threaded sleeve 45 and the screw rod 44, so that the interference distance between the pickle ball shell and the hot melt plate 5 can be accurately and closely controlled, thereby effectively controlling the melting degree of the welding plane of the pickle ball shell and avoiding a large amount of glue overflow on the surface of the pickle ball.

[0035] Specifically, Figure 2 As shown, the pressing mechanism 6 includes a fixed frame 61, a lower pressing plate 62 and a first cylinder 63. The fixed frame 61 is composed of a horizontally arranged top plate 611 and a plurality of vertically arranged rack rods 612, and the four corners of the lower pressing plate 62 can be slidably sleeved on the middle part of the rack rod 612. The first cylinder 63 is vertically arranged below the fixed frame 61, and the output end of the first cylinder 63 is fixedly connected to the bottom end surface of the lower pressing plate 62, and the hot melt plate 5 is vertically arranged on the bottom end surface of the lower pressing plate 62. The lower pressing plate 62 is moved downward along the rack rod 612 of the fixed frame 61 to the bottom of the fixed frame 61 by the first cylinder 63, driving the hot melt plate 5 to move between the two model plates 3, so that the welding plane of the pickle ball shell is fitted with the hot melt plate 5 for hot melting.

[0036] Specifically, Figure 7 As shown, a plurality of horizontally arranged ejection cylinders 8 are provided on one end face of the closing template 13 away from the model plate 3, and the output end of the ejection cylinder 8 can extend to the interior of the cavity 31. After the pickle ball shell is located in the cavity 31 and maintained in a fixed shape, the output end of the ejection cylinder 8 can extend to the interior of the cavity 31 to push out the pickle ball in the cavity 31, thereby completing the unloading.

[0037] Specifically, Figure 8 As shown, a feeding mechanism 2 is provided at one end of the frame 1 away from the frame 1, and the feeding mechanism 2 includes a feeding frame 21, a slide rail 22 and two support plates 23, one side of the two support plates 23 is provided with a rotating shaft 26, and the two support plates 23 are rotatably connected to the top of the feeding frame 21 through the rotating shaft 26, and the bottom of the feeding frame 21 is movably connected to the top surface of the frame 1 through the slide rail 22, and the feeding frame 21 and the two support plates 23 can be moved between the two model plates 3 through the slide rail 22;

[0038] A feed plate 24 is provided on the top surface of the support plate 23, and a plurality of placement holes 241 for placing the material shell are provided in the middle of the feed plate 24. A feed cylinder 242 is provided between the feed plate 24 and the support plate 23, and the output end of the feed cylinder 242 is fixedly connected to the bottom surface of the feed plate 24. A plurality of vertically arranged positioning pins 25 are provided in the middle of the support plate 23, and an outward expansion spring 251 is provided between the top of the positioning pin 25 and the inside of the placement hole 241, and the outer wall of the outward expansion spring 251 is in outward contact with the positioning pin 25. Specifically, as Fig. 9 and Fig.10 As shown;

[0039] When the pickle ball shell is inserted into the placement hole 241, the positioning pins 25 will be plugged into the holes on the surface of the pickle ball shell. At the same time, the positioning pins 25 can be moved outward along the axis of the outward expansion spring 251 through the elastic stress of the outward expansion spring 251, so that the pickle ball shell can be stably clamped between several positioning pins 25, ensuring that the position of the pickle ball shell can be kept accurate when it is inserted into the cavity 31 inside the model plate 3.

[0040] The support plate 23 on one side is provided with a shell adjustment mechanism 10, specifically, as Figure 8 As shown, the shell adjustment mechanism 10 includes a driving rack 101, a plurality of rotating gears 102 and an adjusting cylinder 103. The driving rack 101 can be horizontally movably arranged on the top surface of the support plate 23 through the adjusting cylinder 103. The rotating gears 102 are rotatably arranged on the side walls of the driving rack 101. The rotating gear 102 is meshed with the driving rack 101 for transmission. The positioning pin 25 located on one side of the shell adjustment mechanism 10 is arranged inside the rotating gear 102. When the pickle ball shell is placed on the support plate 23 located on one side of the shell adjustment mechanism 10, the adjusting cylinder 103 moves outward to drive the driving rack 101 to move horizontally. Since the rotating gear 102 is meshed with the driving rack 101 for transmission, the positioning pin 25 on the top of the rotating gear 102 drives the pickle ball to rotate a certain angle, so that the holes between the pickle balls on the support plates 23 on both sides are in a staggered structure.

[0041] A first gear 261 is provided at one end of the rotating shaft 26, a second cylinder 27 is provided on one side of the frame 1 close to the first gear 261, a first rack 271 is provided at the output end of the second cylinder 27, the first gear 261 and the first rack 271 are meshed for transmission, a vertically arranged driving motor 28 is provided at the bottom of the frame 1, a second gear 281 is provided at the end of the driving motor 28, a second rack 29 is provided on one side of the slide rail 22, and the second gear 281 and the second rack 29 are meshed for transmission.

[0042] In a further solution, a deburring mechanism 9 is further provided at the bottom of the frame 1, and the deburring mechanism 9 includes a lifting cylinder 91 and a burr removal plate 92, the burr removal plate 92 is vertically arranged at the output end of the lifting cylinder 91, and the burr removal plate 92 is arranged below the two model plates 3 through the lifting cylinder 91, and the burr removal plate 92 can be moved between the two model plates 3 through the lifting cylinder 91, and a plurality of burr removal through holes 921 are opened in the middle of the burr removal plate 92, and the burr removal through holes 921 is set in a one-to-one correspondence with the cavity 31; after the pickle ball is hot-melted, a certain amount of burrs will still be generated by overflowing glue. After the two model plates 3 are separated, the burr removal plate 92 can be lifted between the two model plates 3 by the lifting cylinder 91, so that the burr removal through hole 921 is aligned with the cavity 31, and the output end of the return cylinder 8 extends to the inside of the cavity 31 to push the pickle ball in the cavity 31 out. When the pickle ball passes through the burr removal through hole 921, the burrs on the surface can be removed.

[0043] The working process of a shell welding device is as follows: first, the pickle ball shell is placed in the placement hole 241 on the top surface of the feed plate 24, so that the positioning pin 25 is inserted and positioned with the empty space at the top of the pickle ball shell, and then the first rack 271 is lifted by the second cylinder 27 to drive the first gear 261 to rotate, and the support plate 23 is turned down along the rotating shaft 26 to a vertical state, and at the same time, the cylinder 103 is adjusted to move outward to drive the driving rack 101 to move horizontally, and the rotating gear 102 is meshed with the driving rack 101 to drive the top of the rotating gear 102. The positioning pin 25 drives the pickle ball to rotate a little, so that the holes between the pickle balls on the support plates 23 on both sides are staggered, and then the second gear 281 is controlled by the driving motor 28 to rotate, and the second gear 281 is meshed with the second rack 29 for transmission, so that the feed rack 21 and the two support plates 23 can move between the two model plates 3 through the slide rail 22, and finally the feed plate 24 is driven by the output end of the feed cylinder 242 to push the corresponding model plate 3 side, so that the pickle ball shell is embedded in the cavity 31, and the pickle ball shell is fed;

[0044] In the hot-melt stage, firstly, the lower pressing plate 62 is moved downwardly to the bottom of the fixing frame 61 along the frame rod 612 of the fixing frame 61 by the first cylinder 63, so as to drive the hot-melt plate 5 to move between the two model plates 3. The rotation amount of the threaded sleeve 45 can be accurately controlled by the mold closing motor 41, and the rotation amount is converted into the translation amount of the model plate 3 and the closing plate 13 by the threaded connection between the threaded sleeve 45 and the screw rod 44, so that the interference distance between the pick ball shell and the hot-melt plate 5 can be accurately and closely controlled, so as to effectively control the melting degree of the welding plane of the pick ball shell. When the model plate 3 is away from the hot-melt plate 5, the exit spring 51 can, through the elastic stress of the exit spring 51, separate the pick ball shell from the hot-melt plate 5 to one side of the model plate 3, so that the pick ball shell is still kept in the cavity 31 of the model plate 3, so that the welding plane of the pick ball shell is attached to the hot-melt plate 5 for hot-melt. Finally, the lower pressing plate 62 is pulled upwardly through the pressing mechanism 6 to complete the hot-melt of the welding plane of the pick ball shell.

[0045] Finally, the threaded sleeve 45 is further rotated by the mold closing motor 41, and the screw 44 pushes the model plates 3 and the closing plate 13 on both sides to move, so that the cavities 31 on both sides are in a closed spherical state, and are kept for a certain period of time for cooling and shaping. Finally, after the pickle ball shell is located in the cavity 31 and remains shaped, the two model plates 3 are separated, and the burr removal plate 92 is lifted between the two model plates 3 by the lifting cylinder 91, so that the burr removal through hole 921 is aligned with the cavity 31, and the output end of the material return cylinder 8 extends to the inside of the cavity 31, and the pickle ball in the cavity 31 is pushed out. When the pickle ball passes through the burr removal through hole 921, the burrs on the surface can be removed.

[0046] The above is only a preferred embodiment of the utility model, and does not limit the utility model in any form. Although the utility model is disclosed as a preferred embodiment as above, it is not used to limit the utility model. Any technician familiar with this profession can make some changes or modifications to equivalent embodiments of equivalent changes by using the technical content disclosed above without departing from the scope of the technical solution of the utility model. However, any simple modification, equivalent change and modification made to the above embodiments according to the technology of the utility model, which does not depart from the content of the technical solution of the utility model, belongs to the scope of the technical solution of the utility model.

Claims

1. A shell welding device, characterized in that: include: A frame, wherein both sides of the top of the frame are provided with side frames, a horizontally arranged guide rod is arranged between the side frames, two movable clamping plates are arranged in the middle of the guide rod, a model plate is arranged between the two clamping plates, and the inner wall of the model plate is provided with a cavity for placing the material shell; The die pressing mechanism is respectively arranged on the two outer sides of the side frame, and the die pressing mechanism includes a die clamping motor, a threaded sleeve and a screw rod. The threaded sleeve is rotatably arranged horizontally in the middle of the side frame, the screw rod is threadedly connected with the center of the threaded sleeve, one end of the screw rod is rotatably connected with an end surface of the model plate away from the cavity, the output shaft of the die clamping motor is transmission-connected with the screw rod, and the clamping plate can be moved to abut between the two model plates through the screw rod; A hot melt plate, which is movably connected above the two model plates through a pressing mechanism, and the hot melt plate can be moved between the two model plates through the pressing mechanism; The feeding mechanism is arranged at one end of the frame away from the die pressing mechanism. The feeding mechanism includes a feeding rack, a slide rail and two support plates. A rotating shaft is provided on one side of the two support plates. The two support plates are rotatably connected to the top of the feeding rack through the rotating shaft. The bottom of the feeding rack is movably connected to the top surface of the frame through the slide rail. The feeding rack and the two support plates can be moved between the two model plates through the slide rail.

2. A shell welding device according to claim 1, characterized in that: The output end of the mold clamping motor is provided with a first synchronous wheel, the end of the threaded sleeve away from the model plate is provided with a second synchronous wheel, the second synchronous wheel is sleeved and fixedly connected with the threaded sleeve, and the first synchronous wheel and the second synchronous wheel are connected by a synchronous belt.

3. The shell welding device according to claim 1, characterized in that: The pressing mechanism includes a fixed frame, a lower pressing plate and a first cylinder. The fixed frame is composed of a horizontally arranged top plate and a plurality of vertically arranged frame rods, and the four corners of the lower pressing plate can be slidably connected to the middle of the frame rods. The first cylinder is vertically arranged below the fixed frame, and the output end of the first cylinder is fixedly connected to the bottom end surface of the lower pressing plate, and the hot melt plate is vertically arranged on the bottom end surface of the lower pressing plate.

4. The shell welding device according to claim 1, characterized in that: A plurality of horizontally arranged material-removing cylinders are arranged on one end surface of the closing plate away from the model plate, and the output ends of the material-removing cylinders can extend into the interior of the cavity.

5. The shell welding equipment according to claim 1, characterized in that: A feeding plate is provided on the top surface of the support plate, and a plurality of placement holes for placing material shells are opened in the middle of the feeding plate. A feeding cylinder is provided between the feeding plate and the support plate, and the output end of the feeding cylinder is fixedly connected to the bottom end surface of the feeding plate. A plurality of vertically arranged positioning pins are provided in the middle of the support plate, and an outward expansion spring is provided between the plurality of positioning pins from the top end of the positioning pin to the inside of the placement hole, and the outer wall of the outward expansion spring contacts outward with the positioning pin.

6. The shell welding equipment according to claim 5, characterized in that: The support plate on one side is provided with a shell adjustment mechanism, which includes a driving rack, a plurality of rotating gears and an adjusting cylinder. The driving rack can be horizontally movably arranged on the top surface of the support plate through the adjusting cylinder, and the rotating gears are rotatably arranged on the side walls of the driving rack. The rotating gears are meshed with the driving rack for transmission, and the positioning pin located on one side of the shell adjustment mechanism is arranged inside the rotating gear.

7. The shell welding equipment according to claim 1, characterized in that: A first gear is disposed at one end of the rotating shaft, a second cylinder is disposed on a side of the frame close to the first gear, a first rack is disposed at an output end of the second cylinder, and the first gear is meshed with the first rack for transmission.

8. The shell welding equipment according to claim 1, characterized in that: A vertically arranged driving motor is provided at the bottom of the frame, a second gear is provided at the end of the driving motor, a second rack is provided at one side of the slide rail, and the second gear is meshed with the second rack for transmission.

9. The shell welding equipment according to claim 1, characterized in that: A deburring mechanism is also provided at the bottom of the frame, and the deburring mechanism includes a lifting cylinder and a burr removing plate. The burr removing plate is vertically arranged at the output end of the lifting cylinder, and the burr removing plate is arranged below between the two model plates through the lifting cylinder, and the burr removing plate can be moved between the two model plates through the lifting cylinder. A plurality of burr removing through holes are opened in the middle of the burr removing plate, and the burr removing through holes are arranged one-to-one with the cavity.

10. The shell welding equipment according to claim 1, characterized in that: A plurality of exit springs are respectively arranged on both sides of the hot melt plate, one end of the exit spring is respectively arranged horizontally on the end surfaces of both sides of the hot melt plate, and the plurality of exit springs respectively maintain a uniform horizontal position with the corresponding cavities.

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