Mold changing device of injection molding machine

Abstract

The utility model relates to the technical field of injection molding machines, in particular to a mold changing device of an injection molding machine, the mold changing device is mounted on the injection molding machine and comprises two mold changing units for providing power for movement of a mold, the mold comprises a movable mold and a fixed mold, one mold changing unit is in contact with a movable mold bottom plate, and the other mold changing unit is in contact with a fixed mold bottom plate. Wherein the other die changing unit is in contact with the fixed die bottom plate, and when the die is assembled and disassembled, the movable die and the fixed die are in a die assembly state; the mold changing unit comprises a driving assembly and a plurality of transmission assemblies, the driving assembly is in transmission connection with the transmission assemblies, the driving assembly is used for providing power for movement of the mold, the transmission assemblies comprise a plurality of transmission rollers, the transmission rollers are rotationally connected with a mold back plate of the injection molding machine, and the transmission rollers are in rolling contact with the mold back plate. After the mold is in contact with the installation of the injection molding machine, when the mold needs to be replaced, the mold can translate outwards by opening the quick mold replacing device, and quick mold replacement can be realized by matching with a mold replacing trolley.

Description

Technical Field

[0001] The utility model relates to the technical field of injection molding machines, in particular to a mold changing device of an injection molding machine. Background Art

[0002] Injection molding machine is the main molding equipment that uses plastic molding molds to make plastic products of various shapes from thermoplastics or thermosetting plastics.

[0003] The molds of existing injection molding machines are usually replaced manually after being removed from the injection molding machine. The molds are moved out of the injection molding machine. Since the space inside the injection molding machine where the molds can be installed is limited, multiple mold changers are required to work together, which is time-consuming and labor-intensive, has low production efficiency, and may also cause other problems, such as bolt slippage affecting accuracy. Utility Model Content

[0004] The technical problem to be solved by the utility model is: in order to overcome the problem in the prior art that the mold of the injection molding machine is usually replaced manually after being disassembled from the injection molding machine, and the mold needs to be carried out of the injection molding machine by multiple mold changers, which is time-consuming and labor-intensive and has low production efficiency, a mold changing device for an injection molding machine is provided.

[0005] The utility model solves the technical problem by adopting the following technical solution: a mold changing device for an injection molding machine, the mold changing device is installed on the injection molding machine, the mold changing device comprises two mold changing units for providing power for the mold movement, the mold comprises a movable mold and a fixed mold, one of the mold changing units is in contact with the movable mold bottom plate, the other mold changing unit is in contact with the fixed mold bottom plate, when the mold is loaded and unloaded, the movable mold and the fixed mold are in a mold closing state;

[0006] The mold changing unit includes a driving component and a plurality of transmission components. The driving component and the transmission component are transmission-connected. The driving component is used to provide power for the movement of the mold. The transmission component includes a plurality of transmission rollers. The transmission rollers are rotationally connected to the mold back plate of the injection molding machine. The transmission rollers are used to support the mold. The transmission rollers are in rolling contact with the mold back plate. Through the design of the mold changing unit, after the mold is installed in contact with the injection molding machine, when the mold needs to be changed, the quick mold changing device is opened and the mold can be translated outward. Quick mold changing can be achieved with the mold changing cart.

[0007] In order to solve the problem of inconvenient connection of multiple transmission rollers, the transmission assembly further includes a transmission chain, a plurality of transmission shafts and a plurality of transmission sprockets. The transmission shafts and the transmission rollers correspond one to one, the transmission shafts and the transmission sprockets correspond one to one, the transmission shafts and the injection molding machine are rotatably connected, the transmission rollers are installed on the corresponding transmission shafts, the transmission sprockets are installed on the corresponding transmission shafts, and the transmission chains are sequentially wound around the transmission sprockets and connected end to end.

[0008] In order to solve the problem of how to drive the mold to move out of the injection molding machine, the transmission assembly further includes a connecting sprocket, and the connecting sprocket is installed on one of the transmission shafts;

[0009] The driving assembly includes a driving sprocket, a driving chain and a driving element. The driving element is fixedly connected to the injection molding machine. The driving sprocket is installed on the output end of the driving element. The driving chain is wound around the driving sprocket and the connecting sprocket and connected end to end.

[0010] It further includes that the driving sprocket and the transmission sprocket are located in the same plane.

[0011] The beneficial effect of the utility model is that the mold changing device of the injection molding machine provided by the utility model, through the design of the mold changing unit, makes it possible for the mold to be replaced after it is installed in contact with the injection molding machine by opening the quick mold changing device, and the mold can be horizontally moved outward, and the mold can be quickly replaced by cooperating with the mold changing vehicle. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] The utility model is further described below in conjunction with the accompanying drawings and embodiments.

[0013] Figure 1 It is a structural schematic diagram of the utility model;

[0014] Figure 2 This utility model Figure 1 Schematic diagram of the cross-sectional structure at AA in the middle;

[0015] Figure 3 This utility model Figure 1 Schematic diagram of the cross-sectional structure at BB in the middle.

[0016] In the figure: 1. mold changing unit, 11. driving assembly, 111. driving sprocket, 112. driving chain, 113. driving element, 12. transmission assembly, 121. transmission roller, 122. transmission chain, 123. transmission shaft, 124. transmission sprocket, 125. connecting sprocket, 2. movable mold, 3. fixed mold. DETAILED DESCRIPTION

[0017] Now the utility model is further described in detail with reference to the accompanying drawings. These drawings are simplified schematic diagrams, which only illustrate the basic structure of the utility model in a schematic manner, and therefore only show the components related to the utility model.

[0018] like Figure 1It is a structural schematic diagram of the utility model, a mold changing device of an injection molding machine, the mold changing device is installed on the injection molding machine, the mold changing device includes two mold changing units 1 for providing power for mold movement, the mold includes a movable mold 2 and a fixed mold 3, one of the mold changing units 1 is in contact with the bottom plate of the movable mold 2, and the other mold changing unit 1 is in contact with the bottom plate of the fixed mold 3, when the mold is loaded and unloaded, the movable mold 2 and the fixed mold 3 are in a mold closing state;

[0019] like Figure 2 , Figure 3 As shown, the mold changing unit 1 includes a driving component 11 and a plurality of transmission components 12. One mold changing unit 1 has two transmission components 12 arranged at intervals. The driving component 11 and the transmission component 12 are in transmission connection. The driving component 11 is used to provide power for the movement of the mold. The transmission component 12 includes a plurality of transmission rollers 121. One transmission component 12 has two transmission rollers 121 arranged at intervals, and the transmission rollers 121 are located at the same height. The transmission rollers 121 are rotatably connected to the back plate of the injection molding machine mold. The transmission rollers 121 are used to support the mold. The transmission rollers 121 are in rolling contact with the mold back plate. The transmission rollers 121 are fixed on the transmission shaft 123 and can rotate with the transmission shaft 123. The mold can be moved out of the injection molding machine by the rotation of the transmission rollers 121.

[0020] like Figure 2 , Figure 3 As shown, the transmission assembly 12 includes a transmission chain 122, a plurality of transmission shafts 123 and a plurality of transmission sprockets 124. The transmission shafts 123 correspond to the transmission rollers 121 one by one, and the transmission shafts 123 correspond to the transmission sprockets 124 one by one. The transmission shafts 123 are rotationally connected to the injection molding machine. The transmission rollers 121 are mounted on the corresponding transmission shafts 123. The transmission sprockets 124 are mounted on the corresponding transmission shafts 123. The transmission chains 122 are sequentially wound around the transmission sprockets 124 and are connected end to end.

[0021] like Figure 2 , Figure 3 As shown, the transmission assembly 12 includes a connecting sprocket 125, which is installed on one of the transmission shafts 123 to achieve force transmission, so that the transmission roller 121 can rotate, and the forward and reverse rotation of the transmission roller 121 controls the movement of the mold out or in;

[0022] like Figure 2 , Figure 3 As shown, the driving assembly 11 includes a driving sprocket 111, a driving chain 112 and a driving element 113. The driving element 113 is a motor. The driving element 113 is fixedly connected to the injection molding machine. The driving sprocket 111 is installed on the output end of the driving element 113. The driving chain 112 is wound around the driving sprocket 111 and the connecting sprocket 125 and connected end to end. The driving sprocket 111 and the transmission sprocket 124 are located in the same plane to increase transmission stability.

[0023] When in use, the fixed mold 3 and the movable mold 2 are closed, and then the connection structure between the fixed mold 3 and the injection molding machine and the connection structure between the movable mold 2 and the injection molding machine are released, the driving element 113 is started, driving the driving sprocket 111 to rotate, the driving sprocket 111 drives the connecting sprocket 125 to rotate through the driving chain 112, the connecting sprocket 125 drives the transmission shaft 123 to rotate, thereby causing the transmission roller 121 to rotate, the transmission sprocket 124 on the transmission shaft 123 drives the remaining transmission rollers 121 to rotate through the transmission chain 122, thereby rolling the mold out of or into the injection molding machine.

[0024] Based on the above ideal embodiments of the utility model, the relevant staff can make various changes and modifications without deviating from the technical concept of the utility model through the above description. The technical scope of the utility model is not limited to the content of the specification, and its technical scope must be determined according to the scope of the claims.

Claims

1. A mold changing device for an injection molding machine, the mold changing device being installed on the injection molding machine, characterized in that: The mold changing device comprises two mold changing units (1) for providing power for mold movement, the mold comprising a movable mold (2) and a fixed mold (3), one of the mold changing units (1) is in contact with the bottom plate of the movable mold (2), and the other mold changing unit (1) is in contact with the bottom plate of the fixed mold (3), and when the mold is being loaded and unloaded, the movable mold (2) and the fixed mold (3) are in a mold closing state; The mold changing unit (1) comprises a driving assembly (11) and a plurality of transmission assemblies (12); the driving assembly (11) and the transmission assembly (12) are in transmission connection; the driving assembly (11) is used to provide power for the movement of the mold; the transmission assembly (12) comprises a plurality of transmission rollers (121); the transmission rollers (121) are rotationally connected to the mold back plate of the injection molding machine; the transmission rollers (121) are used to support the mold; and the transmission rollers (121) are in rolling contact with the mold back plate.

2. A mold changing device for an injection molding machine as claimed in claim 1, characterized in that: The transmission assembly (12) comprises a transmission chain (122), a plurality of transmission shafts (123) and a plurality of transmission sprockets (124); the transmission shafts (123) correspond to the transmission rollers (121) one by one, the transmission shafts (123) correspond to the transmission sprockets (124) one by one, the transmission shafts (123) are rotatably connected to the injection molding machine, the transmission rollers (121) are mounted on the corresponding transmission shafts (123), the transmission sprockets (124) are mounted on the corresponding transmission shafts (123), and the transmission chains (122) are sequentially wound around the transmission sprockets (124) and connected end to end.

3. A mold changing device for an injection molding machine as claimed in claim 2, characterized in that: The transmission assembly (12) comprises a connecting sprocket (125), wherein the connecting sprocket (125) is mounted on one of the transmission shafts (123); The driving assembly (11) comprises a driving sprocket (111), a driving chain (112) and a driving element (113); the driving element (113) is fixedly connected to an injection molding machine; the driving sprocket (111) is mounted on an output end of the driving element (113); the driving chain (112) is wound around the driving sprocket (111) and a connecting sprocket (125) and connected end to end.

4. A mold changing device for an injection molding machine as claimed in claim 3, characterized in that: The driving sprocket (111) and the transmission sprocket (124) are located in the same plane.

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