Mold clamping structure for vertical injection molding machine

Abstract

The mold clamping structure comprises a machine body, a hydraulic cylinder is arranged in the machine body, an injection molding head is arranged at the top of the hydraulic cylinder, a clamping moving mechanism is arranged at the bottom of the injection molding head, a lifting mechanism is arranged on one side of the machine body, and the clamping moving mechanism comprises an electric sliding rail. And a placement seat is mounted on the electric sliding rail, first sliding grooves are formed in the two sides of the surface of the top of the placement seat correspondingly, and two-way screw rods are rotationally connected into the two first sliding grooves correspondingly, and the vertical injection molding machine belongs to the technical field of vertical injection molding machines. According to the mold clamping structure for the vertical injection molding machine, a mold is pushed to the placement base, sliding friction is converted into rolling friction through supporting rollers, friction force is reduced, the mold can be easily conveyed to the placement base, a first motor drives two clamping plates to move, and the mold is clamped and fixed; and then an electric sliding rail is used for conveniently moving the mold to a mounting position through a placing seat, so that the use convenience can be effectively improved.

Description

Technical Field

[0001] The utility model relates to the technical field of vertical injection molding machines, in particular to a mold clamping structure for a vertical injection molding machine. Background Art

[0002] A vertical injection molding machine is a mechanical device, which is usually composed of an injection system, a mold clamping system, a hydraulic transmission system, an electrical control system, a lubrication system, a heating and cooling system, a safety monitoring system, etc. In the prior art, the mold of the vertical injection molding machine is heavy, and it is not convenient to move it to the installation position for fixing, which makes the convenience of use less than ideal.

[0003] For example, patent publication number CN206551387U is specifically a mold for an injection molding machine with a clamping function, including a base, the top of the base is fixedly connected to two symmetrical columns, the tops of the two columns are fixedly connected to the bottom of the cross plate, the front of the cross plate is fixedly connected to a slide rail, a linear motor is clamped on the slide rail, the bottom of the linear motor is fixedly connected to a manipulator, and two symmetrical slide grooves are provided on the top of the base, the top of the base is respectively fixedly connected to a first fixed block and a second fixed block, and the first fixed block is located on the left side of the second fixed block, the interior of the first fixed block is fixedly connected to a threaded tube, and the internal thread of the threaded tube is connected to a screw. The mold for an injection molding machine with a clamping function can effectively clamp the first mold block and the second mold block, effectively avoid the phenomenon of cracks in the mold, have a good extrusion effect, and have a better clamping function of the mold, which effectively guarantees the quality of the product after injection molding. However, there is a problem that the mold of this vertical injection molding machine is heavy, and it is not convenient to move it to the installation position for fixing, which makes the convenience of use less than ideal. Utility Model Content

[0004] In view of the deficiencies in the prior art, the utility model provides a mold clamping structure for a vertical injection molding machine, which solves the problem that the mold of the vertical injection molding machine is heavy and it is inconvenient to move it to the installation position for fixation, making the convenience of use less than ideal.

[0005] To achieve the above objectives, the utility model is implemented through the following technical solutions: A mold clamping structure for a vertical injection molding machine, comprising a machine body, a hydraulic cylinder is arranged inside the machine body, an injection head is arranged on the top of the hydraulic cylinder, a clamping and moving mechanism is arranged at the bottom of the injection head, and a lifting mechanism is arranged on one side of the machine body;

[0006] The clamping moving mechanism includes an electric slide rail, and a placing seat is installed on the electric slide rail. Both sides of the top surface of the placing seat are provided with a first slide groove, and two bidirectional screws are rotatably connected inside the two first slide grooves. The two bidirectional screws are transmission-connected, and one end of the bidirectional screw is fixedly connected to the first motor, and each of the bidirectional screws is threadedly connected to two nut seats, and the tops of two adjacent nut seats are fixedly connected to a clamping plate, and multiple groups of support rollers are arranged between the two clamping plates, and the end of each group of support rollers is fixedly connected to a locking gear, and the bottom of each group of support rollers is provided with a movable frame, and a guide rod is slidably connected to the movable frame, and the bottom of the movable frame is fixedly connected to an electric push rod, the top of the movable frame is fixedly connected to a connecting rod, and the top of the connecting rod is fixedly connected to a locking gear sleeve.

[0007] Preferably, the electric slide rail is fixedly mounted on the top of the machine body, and the electric slide rail is arranged at the bottom of the injection molding head, so that the electric slide rail can move the placement seat to the bottom of the injection molding head, thereby enabling the mold to be injection molded.

[0008] Preferably, the bidirectional screw is provided with two sections of threads in opposite directions, the two nut seats are symmetrically arranged on the bidirectional screw, and the nut seats are slidably connected to the first sliding groove, so that the bidirectional screw can drive the two nut seats to move toward or away from each other.

[0009] Preferably, the ends of the two bidirectional screws are fixedly connected to synchronous wheels, a synchronous belt is sleeved between the two synchronous wheels, and the two bidirectional screws are connected through the synchronous wheel and the synchronous belt, so that the first motor can drive the two bidirectional screws to rotate synchronously at the same time.

[0010] Preferably, the multiple groups of support rollers are rotatably connected to the inside of the placement seat, and the support rollers partially pass through the placement seat and extend to the outside of the placement seat, so that the support rollers can support the mold and convert sliding friction into rolling friction, thereby facilitating the movement of the mold.

[0011] Preferably, the guide rod and the electric push rod are both fixedly connected to the inner wall of the placement seat, the shape of the locking gear sleeve is set to be semi-annular, and the locking gear sleeve matches the locking gear, so that the locking gear sleeve can lock the support roller after engaging with the locking gear.

[0012] Preferably, the lifting mechanism includes a lifting seat, two guide sliders and a connecting seat are fixedly connected to the end of the lifting seat, a plurality of second slide grooves are opened on the front side of the machine body, the second slide grooves match the guide sliders and the connecting seat, a lifting screw is threadedly connected to the internal part of the connecting seat, and the end of the lifting screw is connected to a second motor through a gear pair, so that heavier molds can be lifted, thereby improving the convenience of installation.

[0013] The utility model provides a mold clamping structure for a vertical injection molding machine. Compared with the prior art, it has the following beneficial effects:

[0014] 1. The mold clamping structure of the vertical injection molding machine pushes the mold toward the placement seat and converts the sliding friction into rolling friction using the support roller to reduce the friction force, so that the mold can be easily sent to the placement seat. The first motor drives the two clamping plates to move to clamp and fix the mold, and then the electric slide rail is used to move the placement seat to facilitate the mold to be moved to the installation position, thereby effectively improving the convenience of use.

[0015] 2. The mold clamping structure of the vertical injection molding machine drives the lifting screw to rotate through the second motor, the rotation of the lifting screw drives the connecting seat to move, the movement of the connecting seat drives the lifting seat to move, and the heavier mold is lifted, thereby improving the convenience of installation. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0017] Figure 2 This is a schematic diagram of the structure of the placement seat of the utility model;

[0018] Figure 3 This is a schematic diagram of the support roller structure of the utility model;

[0019] Figure 4 It is a schematic diagram of the lifting mechanism structure of the utility model.

[0020] In the figure: 1. body; 2. clamping and moving mechanism; 201. electric slide rail; 202. placement seat; 203. first slide groove; 204. bidirectional screw; 205. first motor; 206. nut seat; 207. clamping plate; 208. support roller; 209. locking gear; 210. movable frame; 211. guide rod; 212. electric push rod; 213. connecting rod; 214. locking gear sleeve; 3. hydraulic cylinder; 4. injection head; 5. lifting mechanism; 501. lifting seat; 502. guide slider; 503. connecting seat; 504. lifting screw; 505. gear pair; 506. second motor. DETAILED DESCRIPTION

[0021] 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.

[0022] See also Figure 1-3 The utility model provides a technical solution: a mold clamping structure for a vertical injection molding machine, including a machine body 1, a hydraulic cylinder 3 is arranged inside the machine body 1, an injection head 4 is arranged on the top of the hydraulic cylinder 3, a clamping moving mechanism 2 is arranged at the bottom of the injection head 4, and a lifting mechanism 5 is arranged on one side of the machine body 1. The mold can be fixed by the clamping moving mechanism 2, and the mold can be conveniently moved to the installation position, thereby effectively improving the convenience of use.

[0023] The clamping moving mechanism 2 includes an electric slide rail 201, which is fixedly mounted on the top of the machine body 1, and the electric slide rail 201 is arranged at the bottom of the injection head 4, so that the electric slide rail 201 can move the placement seat 202 to the bottom of the injection head 4, so that the mold can be injection molded. The placement seat 202 is installed on the electric slide rail 201, and both sides of the top surface of the placement seat 202 are provided with first slide grooves 203, and the two first slide grooves 203 are rotatably connected with bidirectional screws 204 inside, and the two bidirectional screws 204 are transmission-connected, and the end of one bidirectional screw 204 is fixedly connected with a first motor 205, and the two bidirectional screws 20 The two ends of the two-way screw rods 204 are fixedly connected with synchronous wheels, and a synchronous belt is sleeved between the two synchronous wheels. The two bidirectional screw rods 204 are connected by the synchronous wheels and the synchronous belt, so that the first motor 205 can drive the two bidirectional screw rods 204 to rotate synchronously at the same time. Two nut seats 206 are threadedly connected to each bidirectional screw rod 204. The bidirectional screw rod 204 is provided with two sections of threads in opposite directions. The two nut seats 206 are symmetrically arranged on the bidirectional screw rod 204, and the nut seats 206 are slidably connected to the first slide groove 203, so that the bidirectional screw rod 204 can drive the two nut seats 206 to move toward or away from each other, and two adjacent nuts A clamping plate 207 is fixedly connected to the top of the seat 206, and multiple groups of support rollers 208 are arranged between the two clamping plates 207. The multiple groups of support rollers 208 are rotatably connected to the inside of the placement seat 202, and the support rollers 208 partially penetrate the placement seat 202 and extend to the outside of the placement seat 202, so that the support rollers 208 can support the mold and can convert sliding friction into rolling friction, so as to facilitate the movement of the mold. The end of each group of support rollers 208 is fixedly connected to a locking gear 209, and a movable frame 210 is arranged at the bottom of one side of each group of support rollers 208. A guide rod 211 is slidably connected to the movable frame 210. An electric push rod 212 is fixedly connected to the bottom of 210, and the electric push rod 212 can push the movable frame 210 to move up and down. A connecting rod 213 is fixedly connected to the top of the movable frame 210, and a locking gear sleeve 214 is fixedly connected to the top of the connecting rod 213. The guide rod 211 and the electric push rod 212 are fixedly connected to the inner wall of the placement seat 202. The shape of the locking gear sleeve 214 is set to be semi-annular, and the locking gear sleeve 214 matches the locking gear 209, so that the locking gear sleeve 214 can lock the support roller 208 after meshing with the locking gear 209, so that the support roller 208 can be used to support the mold to improve stability.

[0024] See also Figure 1 and Figure 4The lifting mechanism 5 includes a lifting seat 501, and two guide sliders 502 and a connecting seat 503 are fixedly connected to the end of the lifting seat 501. A plurality of second slide grooves are opened on the front side of the body 1. The second slide grooves match the guide sliders 502 and the connecting seat 503, and can guide the movement of the lifting seat 501. The connecting seat 503 is internally threadedly connected with a lifting screw rod 504. The end of the lifting screw rod 504 is connected to a second motor 506 through a gear pair 505. The lifting screw rod 504 can be driven to rotate by the second motor 506. The rotation of the lifting screw rod 504 drives the connecting seat 503 to move. The movement of the connecting seat 503 drives the lifting seat 501 to move, so as to lift heavier molds, thereby improving the convenience of installation.

[0025] During operation, the mold is pushed toward the placement seat 202, and the support roller 208 is used to convert the sliding friction into rolling friction to reduce the friction force, so that the mold can be easily sent to the placement seat 202, and then the electric push rod 212 drives the movable frame 210 to move, and the movable frame 210 drives the connecting rod 213 to move along the guide rod 211, and the movement of the connecting rod 213 drives the locking gear sleeve 214 to move, and the locking gear sleeve 214 is meshed with the locking gear 209, and the support roller 208 is locked to keep it stable, and then the first motor 205 drives the two bidirectional screws 204 to rotate, and the rotation of the bidirectional screws 204 drives the two clamping plates 207 to move through the nut seat 206 to clamp and fix the mold, and then the electric slide rail 201 is used to facilitate the placement seat 202 to move the mold to the installation position, thereby effectively improving the convenience of use.

[0026] Meanwhile, the contents not described in detail in this specification belong to the prior art known to those skilled in the art.

Claims

1. A mold clamping structure for a vertical injection molding machine, comprising a machine body (1), characterized in that: A hydraulic cylinder (3) is provided inside the machine body (1), an injection head (4) is provided on the top of the hydraulic cylinder (3), a clamping movement mechanism (2) is provided on the bottom of the injection head (4), and a lifting mechanism (5) is provided on one side of the machine body (1); The clamping moving mechanism (2) comprises an electric slide rail (201), a placement seat (202) is installed on the electric slide rail (201), first slide grooves (203) are provided on both sides of the top surface of the placement seat (202), two bidirectional screw rods (204) are rotatably connected inside the two first slide grooves (203), the two bidirectional screw rods (204) are transmission-connected, one end of the bidirectional screw rod (204) is fixedly connected to a first motor (205), each of the bidirectional screw rods (204) is threadedly connected to two nut seats (206), and the tops of two adjacent nut seats (206) are connected to each other. A clamping plate (207) is fixedly connected to the bottom of the movable frame (210), a plurality of groups of support rollers (208) are arranged between the two clamping plates (207), a locking gear (209) is fixedly connected to the end of each group of support rollers (208), a movable frame (210) is arranged at the bottom of one side of each group of support rollers (208), a guide rod (211) is slidably connected to the movable frame (210), an electric push rod (212) is fixedly connected to the bottom of the movable frame (210), a connecting rod (213) is fixedly connected to the top of the movable frame (210), and a locking gear sleeve (214) is fixedly connected to the top of the connecting rod (213).

2. A mold clamping structure for a vertical injection molding machine according to claim 1, characterized in that: The electric slide rail (201) is fixedly mounted on the top of the machine body (1), and the electric slide rail (201) is disposed at the bottom of the injection molding head (4).

3. The mold clamping structure for a vertical injection molding machine according to claim 1, characterized in that: The bidirectional screw rod (204) is provided with two sections of threads in opposite directions, the two nut seats (206) are symmetrically arranged on the bidirectional screw rod (204), and the nut seats (206) are slidably connected to the first sliding groove (203).

4. The mold clamping structure for a vertical injection molding machine according to claim 1, characterized in that: The ends of the two bidirectional screw rods (204) are fixedly connected to synchronous wheels, a synchronous belt is sleeved between the two synchronous wheels, and the two bidirectional screw rods (204) are connected through the synchronous wheel and the synchronous belt.

5. The mold clamping structure for a vertical injection molding machine according to claim 1, characterized in that: The plurality of groups of support rollers (208) are all rotatably connected to the interior of the placement seat (202), and a portion of the support rollers (208) passes through the placement seat (202) and extends to the exterior of the placement seat (202).

6. The mold clamping structure for a vertical injection molding machine according to claim 1, characterized in that: The guide rod (211) and the electric push rod (212) are both fixedly connected to the inner wall of the placement seat (202); the shape of the locking tooth sleeve (214) is set to be semi-annular, and the locking tooth sleeve (214) matches the locking gear (209).

7. The mold clamping structure for a vertical injection molding machine according to claim 1, characterized in that: The lifting mechanism (5) comprises a lifting seat (501), and the end of the lifting seat (501) is fixedly connected to two guide slide blocks (502) and a connecting seat (503).

8. The mold clamping structure for a vertical injection molding machine according to claim 7, characterized in that: A plurality of second slide grooves are provided on the front side of the machine body (1), the second slide grooves match the guide slider (502) and the connecting seat (503), a lifting screw rod (504) is internally threadedly connected to the connecting seat (503), and the end of the lifting screw rod (504) is connected to a second motor (506) via a gear pair (505).

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