Door device for injection molding machine

Abstract

The present invention relates to a door device for an injection molding machine, comprising: a door frame forming an accommodating space for accommodating the injection molding machine; an upper door coupled to the door frame so as to be movable between an open position at which the upper side of the accommodation space is opened and a closed position at which the upper side of the accommodation space is closed; a first side door coupled to the door frame so as to be movable between an open position at which a side surface of the accommodation space is opened and a closed position at which an upper side of the accommodation space is closed; and a first opening / closing interlocking part for interlocking the first side door and the upper door so that the upper door is opened together with the opening of the first side door.

Description

Technical Field

[0001] The present invention relates to an injection molding machine that performs injection molding in order to manufacture an injection-molded product. Background Art

[0002] Injection molding is the most widely used manufacturing method for plastic products. For example, in products such as televisions, mobile phones, and PDAs, various parts including covers and housings can be manufactured by injection molding.

[0003] Generally, products manufactured by injection molding are completed through the following process. First, the molding material to which pigments, stabilizers, plasticizers, fillers, etc. are added is put into a hopper and made into a molten state. Then, the molten molding material is injected into the mold and solidified by cooling. After that, the solidified molding material is taken out from the mold and the unnecessary parts are removed. Through this process, various types and sizes of injection molded products are manufactured.

[0004] As a device for performing the injection molding as described above, an injection molding machine is used. The injection molding machine includes an injection device and a mold clamping device. The injection device supplies a molding material in a molten state to the mold clamping device. The mold clamping device solidifies the molding material in a molten state supplied from the injection device by cooling it. In order to ensure the safety of operators, etc., such an injection molding machine includes a door device.

[0005] To this end, the door device for an injection molding machine in the prior art may include: a door frame forming a storage space for accommodating the injection molding machine; an upper door combined with the door frame to be able to move between an open position for opening the upper side of the storage space and a blocked position for blocking the upper side of the storage space; and a side door combined with the door frame to be able to move between an open position for opening the side of the storage space and a blocked position for blocking the upper side of the storage space.

[0006] Here, the door device for injection molding machine in the prior art is implemented so that after opening the upper door, the injection molded product is separated from the clamping device from the upper side by a crane (Crain) such as a robot arm. In this case, by opening the upper door, a space for the crane to enter can be ensured. However, there is a problem that the side door needs to be opened additionally to prevent the side door from colliding with the crane during the process of the crane entering from the upper side. That is, the door device for injection molding machine in the prior art is implemented so that the upper door and the side door are opened separately. Therefore, the door device for injection molding machine in the prior art needs to be provided with an additional component such as a track for supporting the upper door, and there is a problem that the crane collides with the track and the like during the process of entering the accommodating space. In addition, the door device for injection molding machine in the prior art needs to open the upper door and the side door separately, so there is a problem that the efficiency of the opening operation for opening the upper door and the side door is reduced.

[0007] The crane can enter the position where the upper door is opened from the upper side and separate the injection molded product from the mold clamping device by lifting the injection molded product. In this case, the door device for the injection molding machine in the prior art has the problem that the crane collides with the side door during the process of entering or leaving the accommodation space. Summary of the invention

[0008] Problem to be solved

[0009] The present invention has been made to solve the above-mentioned problems, and an object of the present invention is to provide a door device for an injection molding machine that can prevent a crane from colliding with a side door during separation of an injection-molded product from the injection molding machine.

[0010] Technical solutions to the problem

[0011] In order to solve the above-mentioned problems, the present invention may include the following configurations.

[0012] The present invention may include: a door frame, which forms a storage space for accommodating an injection molding machine; an upper door, which is combined with the door frame and can move between an open position for opening the upper side of the storage space and a blocked position for blocking the upper side of the storage space; a first side door, which is combined with the door frame and can move between an open position for opening the side of the storage space and a blocked position for blocking the upper side of the storage space; and a first opening and closing linkage part, which links the first side door and the upper door so that the upper door is opened together with the opening of the first side door.

[0013] The present invention may include: a door frame 2, forming a storage space 21 for accommodating an injection molding machine 10; an upper door 3, combined with the door frame 2, capable of moving between an open position for opening the upper side of the storage space 21 and a blocked position for blocking the upper side of the storage space 21; and a first side door 4, combined with the door frame 2, capable of moving between an open position for opening the side of the storage space 21 and a blocked position for blocking the side of the storage space 21. The first side door 4 may include a roller track 41 protruding toward the upper side. The present invention may also include a roller portion 9 that allows the upper door 3 to be movably coupled to the first side door 4. The roller portion 9 may include: a vertical roller portion 91, arranged in a vertical direction, rotating along the top surface of the roller track 41; and a horizontal roller portion 92, arranged in a horizontal direction, rotating along the side of the roller track 41.

[0014] Effects of the Invention

[0015] According to the present invention, the following effects can be obtained.

[0016] The present invention can be implemented as the upper door can be opened simultaneously with the opening of the side door. Therefore, when the upper door needs to be opened for the crane (mechanical arm) etc. for separating the injection molded product from the injection molding machine, the present invention can open the upper door by opening the side door.

[0017] The present invention can be implemented as a side door supporting an upper door. Therefore, the present invention does not require an additional member such as a track for supporting the upper door, and can prevent a crane (mechanical arm) or the like from interfering with the track or the like during entry when the side door and the upper door are opened. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic perspective view of the door device for an injection molding machine of the present invention.

[0019] Figure 2 It is a schematic perspective view showing a state in which the upper door, the first side door, and the second side door are arranged at the blocking positions in the door device for an injection molding machine according to the present invention.

[0020] Figure 3 It is a schematic perspective view showing a state in which the upper door and the first side door are arranged at the open position in the door device for an injection molding machine of the present invention.

[0021] Figure 4 It is a schematic perspective view showing a state in which the upper door and the second side door are arranged in the open position in the door device for an injection molding machine of the present invention.

[0022] Figure 5 It is a schematic perspective view showing a state where the upper door is arranged at the open position in the door device for an injection molding machine according to the present invention.

[0023] Figure 6 It is a schematic perspective view showing a state where the upper door, the first side door, and the second side door are arranged at the open position in the door device for an injection molding machine of the present invention.

[0024] Figure 7 It is a schematic perspective view of a first opening and closing linkage portion of the door device for an injection molding machine according to the present invention.

[0025] Figure 8 It is a schematic perspective view of the first opening and closing interlocking portion viewed from the inside of the storage space in the door device for an injection molding machine of the present invention.

[0026] Fig. 9 It is a schematic plan view of a first opening and closing interlocking portion of the door device for an injection molding machine according to the present invention.

[0027] Fig.10 It is a schematic cross-sectional view of a first side door and an upper door of a door device for an injection molding machine according to the present invention.

[0028] Fig.11 It is a schematic plan view for showing a first opening and closing interlocking portion and a second opening and closing interlocking portion of the door device for an injection molding machine according to the present invention.

[0029] Fig.12 It is a schematic cross-sectional view of the second side door and the upper door of the door device for an injection molding machine of the present invention.

[0030] Fig.13 This is a schematic cross-sectional view showing an upper fixing portion of a door device for an injection molding machine according to the present invention.

[0031] Fig.14 It is a schematic front view of the roller portion of the door device for an injection molding machine according to the present invention. DETAILED DESCRIPTION

[0032] Hereinafter, embodiments of the door device for an injection molding machine according to the present invention will be described in detail with reference to the accompanying drawings.

[0033] Reference Figure 1 The door device 1 for an injection molding machine of the present invention is provided in an injection molding machine 10 for manufacturing injection molded products. The injection molding machine 10 includes: an injection device (not shown) for supplying a molding material in a molten state; and a clamping device (not shown) for cooling the molding material in a molten state supplied from the injection device to solidify the molding material into an injection molded product. The door device 1 for an injection molding machine of the present invention is combined with at least one of the injection device and the clamping device to ensure the safety of operators and prevent foreign matter generated from the injection molding machine 10 from scattering (scattering).

[0034] To this end, the door device 1 for an injection molding machine of the present invention comprises: a door frame 2, forming a storage space 21 for accommodating the injection molding machine 10; an upper door 3, combined with the door frame 2 so as to be movable between an open position OP for opening the upper side of the storage space 21 and a blocked position CP for blocking the upper side of the storage space 21; a first side door 4, combined with the door frame 2 so as to be movable between an open position OP for opening the side of the storage space 21 and a blocked position CP for blocking the upper side of the storage space 21; and a first opening and closing linkage part 5, which links the first side door and the upper door 3 so that the upper door 3 is opened together with the opening of the first side door 4. As a result, the door device 1 for an injection molding machine of the present invention can obtain the following effects.

[0035] The door device 1 for an injection molding machine of the present invention can be implemented so that the upper door 3 is opened simultaneously with the opening of the first side door 4. Therefore, in the case where the upper door 3 needs to be opened in order for a crane (mechanical arm) or the like for separating the injection molded product from the injection molding machine 10 to enter, the door device 1 for an injection molding machine of the present invention can open the upper door 3 by opening the first side door 4.

[0036] In addition, the door device 1 for an injection molding machine of the present invention can be implemented as the first side door 4 supporting the upper door 3. Therefore, the door device 1 for an injection molding machine of the present invention does not require an additional component such as a track for supporting the upper door 3, and can prevent a crane (mechanical arm) or the like from interfering with the track or the like during entry when the first side door 4 and the upper door 3 are opened. Therefore, the door device 1 for an injection molding machine of the present invention can ensure an additional entry space for a crane (mechanical arm) or the like to enter.

[0037] Hereinafter, the door frame 2, the upper door 3, the first side door 4 and the first opening and closing linkage part 5 will be described in detail with reference to the accompanying drawings.

[0038] Reference Figure 1 , the door frame 2 forms a storage space 21 for accommodating the injection molding machine 10. The door frame 2 can function as a frame (Frame) of the door device 1 for the injection molding machine of the present invention. The door frame 2 can not only block the operator from approaching the injection molding machine 10, but also block the byproducts such as dust scattered from the injection molding machine 10 from flying out to the outside. The first side door 4, the second side door 6 and the upper door 3 can be combined with the door frame 2. The door frame 2 can be formed to have a roughly rectangular appearance, but is not limited to this, and can also be formed in other forms as long as it can accommodate the injection molding machine 10. For example, the door frame 2 can be formed to have an appearance in a form that is roughly the same as the appearance of the injection molding machine 10.

[0039] Reference Figures 1 to 6 , the upper door 3 is movably combined with the door frame 2 to open or block the upper side of the accommodating space 21. The upper door 3 may be slidably combined with the door frame 2. In this case, the upper door 3 may be moved to an open position OP that opens the upper side of the accommodating space 21 by moving toward the door frame 2 and being inserted into the inner side of the door frame 2. Thus, the upper door 3 may open the upper side of the accommodating space 21. Conversely, the upper door 3 may be moved to a blocking position CP that blocks the upper side of the accommodating space 21 by moving toward the opposite side of the door frame 2 and protruding from the door frame 2. Therefore, the upper door 3 may block the upper side of the accommodating space 21. The upper door 3 may be selectively opened together with the first side door 4 or the second side door 6 as the first side door 4 or the second side door 6 is opened. Therefore, the door device 1 for an injection molding machine of the present invention may open the upper door 3 by opening one of the first side door 4 and the second side door 6. Thus, through the door device 1 for an injection molding machine of the present invention, an operator located on either side of the first side door 4 or the second side door 6 can open the upper door 3 together by opening the first side door 4 or the second side door 6 without moving. Therefore, the door device 1 for an injection molding machine of the present invention can improve the efficiency of the opening operation of the upper door 3 by shortening the time required for the operator to move in order to open the upper door 3. On the other hand, the upper door 3 can move from the opening position OP for opening the accommodating space 21 to the blocking position CP for blocking the accommodating space 21 independently of the first side door 4 or the second side door 6.

[0040] Reference Figures 1 to 8 , the first side door 4 is movably coupled to the door frame 2 to open or block a side of the accommodation space 21. The first side door 4 may be implemented to open or block one side of the accommodation space 21. In this case, the first side door 4 may be slidably coupled to the door frame 2. In this case, the first side door 4 may be moved to an open position OP that opens one side of the accommodation space 21 by moving toward the door frame 2 and being inserted into the inner side of the door frame 2. Thus, the first side door 4 may open one side of the accommodation space 21. Conversely, the first side door 4 may be moved to a blocking position CP that blocks one side of the accommodation space 21 by moving toward the opposite side of the door frame 2 and protruding from the door frame 2. Thus, the first side door 4 may block one side of the accommodation space 21. For example, the first side door 4 may be implemented to open or block the left side of the accommodation space 21. The first side door 4 may be coupled to the door frame 2 to be perpendicular to the upper door 3.

[0041] Reference Figures 1 to 8 The first opening and closing linkage part 5 can make the first side door 4 and the upper door 3 work in conjunction with each other, so that the upper door 3 is opened together with the opening of the first side door 4. The first opening and closing linkage part 5 can make the first side door 4 and the upper door 3 work in conjunction with each other, so that the upper door 3 moves together to the open position OP when the first side door 4 moves from the blocking position CP to the open position OP. In addition, the first opening and closing linkage part 5 can make the first side door 4 and the upper door 3 work in conjunction with each other, so that the upper door 3 moves together to the blocking position CP when the first side door 4 moves from the open position OP to the blocking position CP.

[0042] Reference Figures 1 to 9 The first opening and closing linkage part 5 may include a first opening member 51 and a first opening linkage member 52 .

[0043] The first opening member 51 is coupled to the first side door 4. The first opening member 51 may be coupled to the inner side of the first side door 4 to be located in the accommodation space 21. The first opening member 51 may be configured to overlap with the first opening linkage member 52 along an opening direction (OD arrow direction) in which the first side door 4 opens the side of the accommodation space 21.

[0044] The first opening linkage member 52 is coupled to the upper door 3. The first opening linkage member 52 can support the first opening member 51 moving in the opening direction (OD arrow direction) so that the upper door 3 moves together with the first side door 4 moving in the opening direction (OD arrow direction). Thus, the door device 1 for an injection molding machine of the present invention can be implemented so that the upper door 3 is opened simultaneously with the opening of the first side door 4. Therefore, in the case where the upper door 3 needs to be opened in order for a crane (mechanical arm) or the like used to separate the injection molded product from the injection molding machine 10 to enter, the door device 1 for an injection molding machine of the present invention can open the upper door 3 by opening the first side door 4.

[0045] In addition, the door device 1 for an injection molding machine of the present invention can be implemented as the first side door 4 supporting the upper door 3. Therefore, the door device 1 for an injection molding machine of the present invention does not require an additional component such as a track for supporting the upper door 3, and can prevent a crane (mechanical arm) or the like from interfering with the track or the like during entry when the first side door 4 and the upper door 3 are opened. As a result, the door device 1 for an injection molding machine of the present invention can ensure an additional entry space for a crane (mechanical arm) or the like to enter.

[0046] Reference Figures 1 to 9, the first opening linkage member 52 can be arranged on the opening direction (OD arrow direction) side relative to the first opening member 51. The first opening linkage member 52 can be arranged at a position further forward than the first opening member 51 toward the opening direction (OD arrow direction). In this case, the upper door 3 can move toward the opening position OP together with the first side door 4 moving toward the opening position OP, and can be arranged at the opening position OP when the first side door 4 moves toward the blocking position CP. For example, the door device 1 for an injection molding machine of the present invention can be implemented such that when the first side door 4 moves toward the opening position OP, the upper door 3 is linked with the first side door 4, so that the first side door 4 and the upper door 3 are opened at the same time. On the contrary, the door device 1 for an injection molding machine of the present invention can be implemented such that when the first side door 4 moves toward the blocking position CP, the linkage between the upper door 3 and the first side door 4 is released, so that even if the first side door 4 moves toward the blocking direction (CD arrow direction), the upper door 3 will not be opened at the same time. As described above, the door device 1 for an injection molding machine of the present invention can be implemented such that the movement of the first side door 4 to the open position OP causes the movement of the upper door 3 to be linked, but the movement of the first side door 4 to the blocking position CP does not cause the movement of the upper door 3 to be linked.

[0047] Reference Figures 1 to 10 The first opening and closing linkage part 5 may include a first blocking linkage hole 53 and a first blocking linkage member 54 .

[0048] The first blocking linkage hole 53 is formed to penetrate the first opening linkage member 52. The first blocking linkage hole 53 may be configured with one side facing the first side door 4. The first blocking linkage hole 53 may be configured with the other side facing the accommodation space 21. Thus, the first blocking linkage member 54 may be coupled to the first blocking linkage hole 53 through the accommodation space 21.

[0049] The first blocking linkage member 54 is combined with the first blocking linkage hole 53. The first blocking linkage member 54 can be combined to penetrate the first blocking linkage hole 53. In this case, the first blocking linkage member 54 can be inserted into the first blocking linkage hole 53 and combined with the first blocking groove 40 formed in the first side door 4, so that the first side door 4 and the upper door 3 are linked. Therefore, the door device 1 for the injection molding machine of the present invention can be implemented so that the first side door 4 and the upper door 3 are combined with each other through the first blocking linkage member 54. Therefore, in the door device 1 for the injection molding machine of the present invention, the upper door 3 can not only move simultaneously with the first side door 4 moving from the blocking position CP to the open position OP, but also move simultaneously with the first side door 4 moving from the open position OP to the blocking position CP. As described above, the door device 1 for an injection molding machine of the present invention is implemented by fully linking the first side door 4 and the upper door 3 through the first blocking linkage member 54, so that both the opening operation of the first side door 4 and the upper door 3 and the blocking operation of closing the first side door 4 and the upper door 3 can be completed at one time. The first blocking linkage member 54 and the first blocking linkage hole 53 can be threadedly combined. For example, when the first blocking linkage member 54 is implemented as a bolt, the first blocking linkage hole 53 can be implemented as a nut.

[0050] Reference Figures 1 to 11 The door device 1 for an injection molding machine of the present invention may include a second side door 6 .

[0051] The second side door 6 is movably coupled to the door frame 2 to open or block a side of the storage space 21. The second side door 6 may be implemented to open or block another side opposite to the one side. In this case, the second side door 6 may be slidably coupled to the door frame 2. In this case, the second side door 6 may be moved to an open position OP for opening another side of the storage space 21 by moving toward the door frame 2 and being inserted into the inner side of the door frame 2. Thus, the second side door 6 may open another side of the storage space 21. Conversely, the second side door 6 may be moved to a blocking position CP for blocking another side of the storage space 21 by moving toward the opposite side of the door frame 2 and protruding from the door frame 2. Thus, the second side door 6 may block another side of the storage space 21. For example, the second side door 6 may be implemented to open or block the left side of the storage space 21. The second side door 6 may be coupled to the door frame 2 to be perpendicular to the upper door 3.

[0052] Reference Figures 1 to 11The second opening and closing linkage part 7 may include a second opening member 71 and a second opening linkage member 72 .

[0053] The second opening member 71 is coupled to the second side door 6. The second opening member 71 is coupled to the inner side of the second side door 6 to be located in the accommodation space 21. The second opening member 71 may be configured to overlap with the second opening linkage member 72 along an opening direction (OD arrow direction) in which the second side door 6 opens the side of the accommodation space 21.

[0054] The second opening linkage member 72 is coupled to the upper door 3. The second opening linkage member 72 can support the second opening member 71 moving in the opening direction (OD arrow direction) so that the upper door 3 moves together with the second side door 6 moving in the opening direction (OD arrow direction). Therefore, the door device 1 for an injection molding machine of the present invention can be implemented so that the upper door 3 is opened together with the opening of the second side door 6. Thus, in the case where the upper door 3 needs to be opened in order for a crane (mechanical arm) or the like for separating the injection molded product from the injection molding machine 10 to enter, the door device 1 for an injection molding machine of the present invention can open the upper door 3 by opening the second side door 6.

[0055] In addition, the door device 1 for an injection molding machine of the present invention can be implemented so that the second side door 6 supports the upper door 3. Therefore, the door device 1 for an injection molding machine of the present invention does not need an additional component such as a track for supporting the upper door 3, and can prevent the crane (mechanical arm) and the like from interfering with the track and the like during the entry process when the second side door 6 and the upper door 3 are opened. Therefore, the door device 1 for an injection molding machine of the present invention can ensure an additional entry space for the crane (mechanical arm) and the like to enter.

[0056] Reference Figures 1 to 11, the second opening linkage member 72 can be arranged on the opening direction (OD arrow direction) side relative to the second opening member 71. The second opening linkage member 72 can be arranged at a position further forward than the second opening member 71 toward the opening direction (OD arrow direction). In this case, the upper door 3 can move toward the opening position OP together with the second side door 6 moving toward the opening position OP, and the upper door 3 is arranged at the opening position OP when the second side door 6 moves toward the blocking position CP. For example, the door device 1 for an injection molding machine of the present invention can be implemented such that when the second side door 6 moves toward the opening position OP, the upper door 3 is linked with the second side door 6, so that the second side door 6 and the upper door 3 are opened at the same time. On the contrary, the door device 1 for an injection molding machine of the present invention can be implemented such that when the second side door 6 moves toward the blocking position CP, the linkage between the upper door 3 and the second side door 6 is released, so that even if the second side door 6 moves toward the blocking direction (CD arrow direction), the upper door 3 will not be opened at the same time. As described above, the door device 1 for an injection molding machine of the present invention can be implemented such that the movement of the second side door 6 to the open position OP is linked to the movement of the upper door 3 , but the movement of the second side door 6 to the blocking position CP is not linked to the movement of the upper door 3 .

[0057] Reference Figures 1 to 12 The second opening and closing linkage part 7 may include a second blocking linkage hole 73 and a second blocking linkage member 74 .

[0058] The second blocking linkage hole 73 is formed to penetrate the second opening linkage member 72. The second blocking linkage hole 73 may be configured with one side facing the second side door 6. The second blocking linkage hole 73 may be configured with the other side facing the accommodation space 21. Thus, the second blocking linkage member 74 may be coupled to the second blocking linkage hole 73 through the accommodation space 21.

[0059] The second blocking linkage member 74 is combined with the second blocking linkage hole 73. The second blocking linkage member 74 can be combined to penetrate the second blocking linkage hole 73. In this case, the second blocking linkage member 74 can be inserted into the second blocking linkage hole 73 and combined with the second blocking groove 60 formed in the second side door 6, so that the second side door 6 and the upper door 3 are linked. Therefore, the door device 1 for the injection molding machine of the present invention can be implemented so that the second side door 6 and the upper door 3 are combined with each other through the second blocking linkage member 74. Therefore, in the door device 1 for the injection molding machine of the present invention, the upper door 3 can not only move simultaneously with the second side door 6 moving from the blocking position CP to the open position OP, but also move simultaneously with the second side door 6 moving from the open position OP to the blocking position CP. As described above, the door device 1 for an injection molding machine of the present invention is implemented by fully linking the second side door 6 and the upper door 3 through the second blocking linkage member 74, so that both the opening operation of the second side door 6 and the upper door 3 and the blocking operation of closing the second side door 6 and the upper door 3 can be completed at one time. The second blocking linkage member 74 and the second blocking linkage hole 73 can be threadedly combined. For example, when the second blocking linkage member 74 is implemented as a bolt, the second blocking linkage hole 73 can be implemented as a nut.

[0060] Reference Figures 1 to 6 as well as Fig.13 The door device 1 for an injection molding machine of the present invention may include an upper fixing portion 8 .

[0061] The upper fixing portion 8 enables the upper door 3 to be coupled to the door frame 2. The upper fixing portion 8 enables the upper door 3 to be coupled to the door frame 2 so that the upper door 3 is fixed in the open position OP. Therefore, the door device 1 for an injection molding machine of the present invention can prevent the upper door 3 from moving from the open position OP to the blocking position CP by the upper fixing portion 8. Therefore, the door device 1 for an injection molding machine of the present invention can prevent the operator from colliding with the moving upper door 3 during the maintenance work of the injection molding machine 10 when the upper door 3 is open, by blocking the upper door 3 from moving in the blocking direction (the CD arrow direction) by itself due to impact or the like. Therefore, the door device 1 for an injection molding machine of the present invention can prevent safety accidents that may be caused by the collision between the operator and the upper door 3 in advance.

[0062] Reference Figures 1 to 6 as well as Fig.13 The upper fixing portion 8 may include an upper fixing body 80 , a fixing insertion hole 81 and an upper fixing member 82 .

[0063] The upper fixing body 80 is coupled to the door frame 2. The upper fixing body 80 may protrude toward the blocking direction (CD arrow direction) relative to the door frame 2. In this case, the upper fixing body 80 may be configured to overlap a portion of the upper door 3 configured at the blocking position CP.

[0064] The fixing insertion hole 81 is formed to penetrate the upper fixing body 80. The fixing insertion hole 81 may be configured so that one side faces the upper door 3. The fixing insertion hole 81 may be configured so that the other side faces the outside of the door device 1 for an injection molding machine of the present invention. In this case, the upper fixing member 82 may be coupled to the fixing insertion hole 81 through the outside.

[0065] The upper fixing member 82 is inserted into the fixing insertion hole 81. The upper fixing member 82 may be combined to penetrate the fixing insertion hole 81. In this case, the upper fixing member 82 may be inserted into the fixing insertion hole 81 and combined with the upper fixing groove 30 formed in the upper door 3 so that the upper door 3 is fixed to the door frame 2. Thus, the door device 1 for the injection molding machine of the present invention can prevent the upper door 3 from moving from the open position OP to the blocking position CP by the upper fixing member 82. Therefore, the door device 1 for the injection molding machine of the present invention can prevent the operator from colliding with the moving upper door 3 during the maintenance work of the injection molding machine 10 in the state where the upper door 3 is opened by blocking the upper door 3 from moving in the blocking direction (the CD arrow direction) by itself due to impact or the like. Thus, the door device 1 for the injection molding machine of the present invention can prevent safety accidents that may be caused by the collision between the operator and the upper door 3 in advance. The upper fixing member 82 and the fixing insertion hole 81 may be threadedly combined. For example, in the case where the upper fixing member 82 is implemented as a bolt, the fixing insertion hole 81 may be implemented as a nut.

[0066] Reference Figures 1 to 6 as well as Fig.14 The door device 1 for an injection molding machine of the present invention may include a roller portion 9. In this case, the first side door 4 may include a roller track 41 protruding toward the upper side.

[0067] The roller portion 9 allows the upper door 3 to be movably coupled to the first side door 4. The roller portion 9 is slidably coupled to the upper side of the first side door 4, so that the upper door 3 can move between the open position OP and the blocked position CP. The roller portion 9 can move the upper door 3 by rolling on the roller track 41.

[0068] Reference Figures 1 to 6 as well as Fig.14 The roller portion 9 may include a vertical roller portion 91 and a horizontal roller portion 92 .

[0069] The vertical roller portion 91 is arranged in the vertical direction and rotates along the top surface (upper surface) of the roller rail 41. The vertical roller portion 91 may be arranged to overlap the roller rail 41 in the vertical direction. Thus, the vertical roller portion 91 may be supported by the roller rail 41 in the vertical direction.

[0070] The horizontal roller portion 92 is arranged in the horizontal direction and rotates along the side of the roller rail 41. The horizontal roller portion 92 may be arranged to overlap the roller rail 41 in the horizontal direction. Thus, the horizontal roller portion 92 may be supported by the roller rail 41 in the horizontal direction.

[0071] Reference Figures 1 to 6 as well as Fig.14 The vertical roller portion 91 may include a vertical roller member 911 and a central shaft 910 .

[0072] The vertical roller member 911 contacts and rotates with the top surface of the roller track 41. The vertical roller member 911 may be combined with the first open linkage member 52 using the central shaft 910. That is, the central shaft 910 may connect the vertical roller member 911 and the first open linkage member 52. The vertical roller member 911 may be combined to be rotatable with the central shaft 910 as a reference.

[0073] Reference Figures 1 to 6 as well as Fig.14 The horizontal roller portion 92 may include a horizontal roller body 920 , an extending member 921 and a horizontal roller member 922 .

[0074] The horizontal roller body 920 is coupled to the upper door 3. The horizontal roller body 920 may be coupled to the upper side of the upper door 3. The horizontal roller body 920 may be coupled to the extension member 921.

[0075] The horizontal roller member 922 contacts and rotates with the side of the roller track 41. The horizontal roller member 922 can rotate around the extension member 921. The upper door 3 can move to the open position OP or the blocked position CP by the horizontal roller member 922 rotating along the roller track 41. As described above, the horizontal roller member 922 can play a function of moving the upper door 3 together with the vertical roller member 911. The horizontal roller member 922 can be inserted into the roller groove 42 formed in the first side door 4 and contact the side of the roller track 41.

[0076] The extension member 921 is respectively combined with the horizontal roller body 920 and the horizontal roller member 922. The extension member 921 can connect the horizontal roller body 920 and the horizontal roller member 922. The extension member 921 can separate the horizontal roller member 922 from the horizontal roller body 920 so that the roller track 41 is arranged between the horizontal roller body 922 and the horizontal roller body 920. Therefore, in the door device 1 for an injection molding machine of the present invention, the roller track 41 can be arranged between the horizontal roller body 920 and the horizontal roller member 922. Therefore, the door device 1 for an injection molding machine of the present invention can prevent the upper door 3 from protruding or detaching to the left and right sides by supporting the side of the roller track 41 by the horizontal roller member 922.

[0077] On the other hand, although not shown in the figure, the door device 1 for the injection molding machine of the present invention may include a plurality of the vertical roller parts 91 and a plurality of the horizontal roller parts 92. In this case, the vertical roller parts 91 and the horizontal roller parts 92 may also be combined with the second side door 6. That is, the plurality of the vertical roller parts 91 and the plurality of the horizontal roller parts 92 may be combined on the left and right sides with the upper door 3 as a reference. Since the vertical roller parts 91 and the horizontal roller parts 92 combined on the second side door side may be realized to be substantially consistent with the vertical roller parts 91 and the horizontal roller parts 92 combined on the first side door 4 side, the specific description thereof is omitted.

[0078] Hereinafter, when the door device 1 for an injection molding machine of the present invention includes the above-mentioned structure, the operation process of the upper door 3, the first side door 4, and the second side door 6 will be described in detail.

[0079] Reference Figures 2 to 6 When the first blocking interlocking member 54 and the second blocking interlocking member 74 are not combined, the door device 1 for an injection molding machine of the present invention operates as follows.

[0080] First, the upper door 3, the first side door 4 and the second side door 6 may all be located at the blocking position CP to completely block the accommodating space 21. In this case, the process of making an injection molded product in the injection molding machine 10 may be performed.

[0081] Next, the operator may move the first side door 4 from the blocking position CP to the open position OP to open one side of the storage space 21. In this case, the upper door 3 may move to the open position OP together with the first side door 4 moving to the open position OP. Thus, the door device 1 for an injection molding machine of the present invention is implemented so that even if only the first side door 4 is opened to open one side of the storage space 21, the upper door 3 may be opened at the same time, so that the operator may open one side of the storage space 21 and the upper side of the storage space 21 together. Conversely, the operator may move the first side door 4 from the open position OP to the blocking position CP to block one side of the storage space 21. In this case, the door device 1 for an injection molding machine of the present invention may independently perform the action of moving the first side door 4 from the blocking position CP to the open position OP. Thus, even if the first side door 4 moves to the blocking position CP, the upper door 3 may not move to the blocking position CP together.

[0082] Different from this, the operator may move the second side door 6 from the blocking position CP to the open position OP to open the other side of the storage space 21. In this case, the upper door 3 may move to the open position OP together with the second side door 6 moving to the open position OP. Thus, the door device 1 for an injection molding machine of the present invention is implemented so that even if only the second side door 6 is opened to open the other side of the storage space 21, the upper door 3 may be opened at the same time, so that the operator may open the other side of the storage space 21 together with the upper side of the storage space 21. Conversely, the operator may move the second side door 6 from the open position OP to the blocking position CP to block the other side of the storage space 21. In this case, the door device 1 for an injection molding machine of the present invention may independently perform the action of moving the second side door 6 from the blocking position CP to the open position OP. Thus, even if the second side door 6 moves to the blocking position CP, the upper door 3 may not move to the blocking position CP together.

[0083] Different from this, the operator can move the upper door 3 from the blocking position CP to the open position OP to open the upper side of the storage space 21. In this case, the door device 1 for the injection molding machine of the present invention can independently execute the action of moving the upper door 3 from the blocking position CP to the open position OP. Therefore, even if the upper door 3 moves to the open position OP, the first side door 4 and the second side door 6 may not move to the open position OP together. In addition, the operator can move the upper door 3 from the open position OP to the blocking position CP to block the upper side of the storage space 21. In this case, the door device 1 for the injection molding machine of the present invention can independently execute the action of moving the upper door 3 from the open position OP to the blocking position CP. Therefore, even if the upper door 3 moves to the blocking position CP, the first side door 4 and the second side door 6 may not move to the blocking position CP together.

[0084] Reference Figures 2 to 6 When combined with the upper fixing member 82, the door device 1 for an injection molding machine of the present invention can operate in the following manner.

[0085] The upper door 3 can be coupled to the door frame 2 using the upper fixing member 82 and configured to be fixed in the open position OP. As described above, since the upper door 3 is fixed in the open position OP, the movement of the first side door 4 and the second side door 6 can be performed independently of the movement of the upper door 3. For example, in a state where the upper door 3 is fixed in the open position OP, the first side door 4 and the second side door 6 can move from the blocking position CP to the open position OP. In addition, in a state where the upper door 3 is fixed in the open position OP, the first side door 4 and the second side door 6 can move from the open position OP to the blocking position CP.

[0086] Reference Figures 2 to 6 When combined with the first blocking linkage member 54, the door device 1 for an injection molding machine of the present invention can operate in the following manner.

[0087] First, the upper door 3, the first side door 4 and the second side door 6 may all be located at the blocking position CP, thereby completely blocking the accommodating space 21. In this case, the process of making an injection molded product in the injection molding machine 10 may be performed.

[0088] Next, the operator can move the first side door 4 from the blocking position CP to the open position OP to open one side of the storage space 21. In this case, the upper door 3 can move to the open position OP together with the first side door 4 moving to the open position OP. Therefore, the door device 1 for the injection molding machine of the present invention is implemented so that even if only the first side door 4 is opened to open one side of the storage space 21, the upper door 3 can be opened at the same time, so that the operator can open one side of the storage space 21 and the upper side of the storage space 21 together. In addition, the operator can move the first side door 4 from the open position OP to the blocking position CP to block one side of the storage space 21. In this case, the door device 1 for the injection molding machine of the present invention can be implemented through the first blocking linkage member 54 so that even if only the first side door 4 is closed to block one side of the storage space 21, the upper door 3 is also closed at the same time, so that the operator can block one side of the storage space 21 and the upper side of the storage space 21 together.

[0089] Next, the operator can move the second side door 6 from the blocking position CP to the open position OP to open the other side of the storage space 21. In this case, in the door device 1 for the injection molding machine of the present invention, since the first side door 4 and the upper door 3 are linked by the first blocking linkage member 54, the first side door 4 and the upper door 3 can move as a whole. As a result, the first side door 4 and the upper door 3 can move together to the open position OP as the second side door 6 moves to the open position OP. That is, in the door device 1 for the injection molding machine of the present invention, the upper door 3 and the first side door 4 can be opened by opening only the second side door 6, thereby fully opening the storage space 21. On the contrary, the operator can move the second side door 6 from the open position OP to the blocking position CP to block the other side of the storage space 21. In this case, the door device 1 for the injection molding machine of the present invention can independently perform the action of moving the second side door 6 from the blocking position CP to the open position OP. Thus, even if the second side door 6 moves to the blocking position CP, the upper door 3 and the first side door 4 may not move to the blocking position CP together.

[0090] Reference Figures 2 to 6 When combined with the second blocking linkage member 74, the door device 1 for an injection molding machine of the present invention can operate in the following manner.

[0091] First, the upper door 3, the first side door 4 and the second side door 6 may all be located at the blocking position CP to completely block the accommodating space 21. In this case, the process of making an injection molded product in the injection molding machine 10 may be performed.

[0092] Next, the operator can move the first side door 4 from the blocking position CP to the open position OP to open one side of the storage space 21. In this case, in the door device 1 for the injection molding machine of the present invention, since the second side door 6 and the upper door 3 are linked by the second blocking linkage member 74, the second side door 6 and the upper door 3 can move as a whole. Therefore, the second side door 6 and the upper door 3 can move together to the open position OP as the first side door 4 moves to the open position OP. That is, in the door device 1 for the injection molding machine of the present invention, even if only the first side door 4 is opened, the upper door 3 and the second side door 6 can be opened, thereby fully opening the storage space 21. On the contrary, the operator can move the first side door 4 from the open position OP to the blocking position CP to block one side of the storage space 21. In this case, the door device 1 for the injection molding machine of the present invention can independently perform the action of moving the first side door 4 from the blocking position CP to the open position OP. Thus, even if the first side door 4 moves to the blocking position CP, the upper door 3 and the second side door may not move to the blocking position CP together.

[0093] Next, the operator can move the second side door 6 from the blocking position CP to the open position OP to open the other side of the storage space 21. In this case, the upper door 3 can move to the open position OP together with the second side door 6 moving to the open position OP. Therefore, the door device 1 for the injection molding machine of the present invention is implemented so that even if only the second side door 6 is opened to open the other side of the storage space 21, the upper door 3 can be opened at the same time, so that the operator can open the other side of the storage space 21 together with the upper side of the storage space 21. In addition, the operator can move the second side door 6 from the open position OP to the blocking position CP to block the other side of the storage space 21. In this case, the door device 1 for the injection molding machine of the present invention can be implemented through the second blocking linkage member 74 so that even if only the second side door 6 is closed to block the other side of the storage space 21, the upper door 3 can be closed at the same time, so that the operator can block the other side of the storage space 21 together with the upper side of the storage space 21.

[0094] Reference Figures 2 to 6In combination with the first blocking linkage member 54 and the second blocking linkage member 74 , the door device 1 for an injection molding machine of the present invention can operate in the following manner.

[0095] First, the upper door 3, the first side door 4 and the second side door 6 may all be located at the blocking position CP to completely block the accommodating space 21. In this case, the process of making an injection molded product in the injection molding machine 10 may be performed.

[0096] Next, the operator can move the first side door 4 from the blocking position CP to the open position OP to open one side of the storage space 21. In this case, in the door device 1 for the injection molding machine of the present invention, since the first side door 4, the second side door 6 and the upper door 3 are linked by the first blocking linkage member 54 and the second blocking linkage member 74, the first side door 4, the second side door 6 and the upper door 3 can move as a whole. Thus, the second side door 6 and the upper door 3 can move together to the open position OP as the first side door 4 moves to the open position OP. In addition, the operator can move the first side door 4 from the open position OP to the blocking position CP to block one side of the storage space 21. In this case, in the door device 1 for the injection molding machine of the present invention, since the first side door 4, the second side door 6 and the upper door 3 are linked by the first blocking linkage member 54 and the second blocking linkage member 74, the first side door 4, the second side door 6 and the upper door 3 can move as a whole. Thus, the second side door 6 and the upper door 3 can move toward the blocking position CP together with the first side door 4 moving toward the blocking position CP.

[0097] Next, the operator can move the second side door 6 from the blocking position CP to the open position OP to open the other side of the storage space 21. In this case, in the door device 1 for the injection molding machine of the present invention, since the first side door 4, the second side door 6 and the upper door 3 are linked by the first blocking linkage member 54 and the second blocking linkage member 74, the first side door 4, the second side door and the upper door 3 can move as a whole. Thus, the first side door 4 and the upper door 3 can move together to the open position OP as the second side door 6 moves to the open position OP. In addition, the operator can move the second side door 6 from the open position OP to the blocking position CP to block the other side of the storage space 21. In this case, in the door device 1 for the injection molding machine of the present invention, since the second side door 6 and the upper door 3 are linked by the second blocking linkage member 74 and the second blocking linkage member 74, the first side door 4, the second side door 6 and the upper door 3 can move as a whole. Thus, the first side door 4 and the upper door 3 can move toward the blocking position CP together with the second side door 6 moving toward the blocking position CP.

[0098] The present invention described above is not limited to the aforementioned embodiments and drawings, and it is obvious to those skilled in the art that various substitutions, modifications and changes can be made to the present invention without departing from the technical concept of the present invention.

Claims

1. A door device for an injection molding machine, wherein: include: A door frame (2) forming a receiving space (21) for receiving the injection molding machine (10); An upper door (3) is combined with the door frame (2) so as to be movable between an open position for opening the upper side of the accommodation space (21) and a blocked position for blocking the upper side of the accommodation space (21); A first side door (4) is combined with the door frame (2) so as to be movable between an open position for opening the side of the accommodation space (21) and a blocked position for blocking the upper side of the accommodation space (21); as well as The first opening and closing linkage part (5) links the first side door (4) and the upper door (3) so that the upper door (3) is opened together with the opening of the first side door (4).

2. The door device for an injection molding machine according to claim 1, characterized in that: The first opening and closing linkage part (5) comprises a first opening component (51) combined with the first side door (4) and a first opening linkage component (52) combined with the upper door (3); The first opening linkage member (52) supports the first opening member (51) moving in an opening direction, so that the upper door (3) moves together with the first side door (4) moving in the opening direction to be opened.

3. The door device for an injection molding machine according to claim 2, characterized in that: The first opening linkage member (52) is arranged on the opening direction side of the first side door (4) relative to the first opening member (51); The upper door (3) moves toward the open position together with the first side door (4) moving toward the open position, and is arranged at the open position when the first side door (4) moves toward the blocking position.

4. The door device for an injection molding machine according to claim 1, characterized in that: It also includes an upper fixing portion (8) for connecting the upper door (3) to the door frame (2); The upper fixing portion (8) fixes the upper door (3) to the door frame (2) so that the upper door (3) is fixed in an open position that opens the accommodation space (21).

5. The door device for an injection molding machine according to claim 4, characterized in that: The upper fixing portion (8) comprises: An upper fixed body (80) coupled to the door frame (2); a fixing insertion hole (81) formed to penetrate the upper fixing body (80); and An upper fixing member (82) inserted into the fixing insertion hole (81); The upper fixing member (82) is inserted into the fixing insertion hole (81) to fix the upper door (3) to the door frame (2), and is combined with the upper fixing groove (30) formed in the upper door (3), thereby fixing the upper door (3) to the door frame (2).

6. The door device for an injection molding machine according to claim 1, characterized in that: The first opening and closing linkage part (5) comprises: A first opening linkage member (52) coupled to the upper door (3); A first blocking linkage hole (53) is formed to penetrate the first opening linkage member (52); and A first blocking linkage member (54) inserted into the first blocking linkage hole (53); The first blocking linkage member (54) is inserted into the first blocking linkage hole (53) and coupled to the first blocking groove (40) formed in the first side door (4), thereby causing the first side door (4) and the upper door (3) to be linked.

7. The door device for an injection molding machine according to claim 1, wherein: It also includes a second side door (6), the second side door (6) is configured to face the first side door (4), and the second side door (6) is movably combined with the door frame (2) to open or block the other side of the accommodating space (21); The second side door (6) comprises a second opening and closing linkage part (7), and the second opening and closing linkage part (7) links the second side door (6) and the upper door (3) so that the upper door (3) is opened together with the opening of the second side door (6).

8. The door device for an injection molding machine according to claim 7, characterized in that: The upper door (3) is selectively opened together with the first side door (4) or the second side door (6) as the first side door (4) or the second side door (6) is opened.

9. A door device for an injection molding machine, characterized in that: include: A door frame (2) forming a receiving space (21) for receiving the injection molding machine (10); An upper door (3) is combined with the door frame (2) so as to be movable between an open position for opening the upper side of the accommodation space (21) and a blocked position for blocking the upper side of the accommodation space (21); as well as A first side door (4) is combined with the door frame (2) so as to be movable between an open position for opening a side of the accommodation space (21) and a blocked position for blocking a side of the accommodation space (21); The first side door (4) comprises a roller track (41) protruding toward the upper side; The door device for the injection molding machine further comprises a roller portion (9) which enables the upper door (3) to be movably coupled to the first side door (4); The roller part (9) comprises: A vertical roller portion (91) is arranged in a vertical direction and rotates along the top surface of the roller track (41); as well as The horizontal roller part (92) is arranged in the horizontal direction and rotates along the side surface of the roller track (41).

10. The door device for an injection molding machine according to claim 9, characterized in that: The invention comprises a first opening and closing linkage part (5), wherein the first opening and closing linkage part (5) links the first side door (4) and the upper door (3) so that the upper door (3) is opened together with the opening of the first side door (4); The first opening and closing linkage part (5) comprises a first opening linkage member (52) coupled to the upper door (3); The vertical roller portion (91) comprises: a vertical roller member (911) contacting the top surface of the roller track (41) and rotating; and A central shaft (910) connects the first open linkage member (52) and the vertical roller member (911).

11. The door device for an injection molding machine according to claim 9, characterized in that: The horizontal roller portion (92) comprises: A horizontal roller body (920) coupled to the upper door (3); a horizontal roller member (922) that contacts the side of the roller track (41) and rotates; and The extension member (921) is respectively combined with the horizontal roller body (920) and the horizontal roller member (922).

12. The door device for an injection molding machine according to claim 9, wherein: It also comprises a first opening and closing linkage part (5), wherein the first opening and closing linkage part (5) links the first side door (4) and the upper door (3) so that the upper door (3) is opened together with the opening of the first side door (4).

13. The door device for an injection molding machine according to claim 12, wherein: It also includes a second side door (6), the second side door (6) is configured to face the first side door (4), and the second side door (6) is movably combined with the door frame (2) to open or block the other side of the accommodating space (21); The second side door (6) comprises a second opening and closing linkage part (7), and the second opening and closing linkage part (7) links the second side door (6) and the upper door (3) so that the upper door (3) is opened together with the opening of the second side door (6).

14. The door device for an injection molding machine according to claim 12, characterized in that: It also includes an upper fixing portion (8) for connecting the upper door (3) to the door frame (2); The upper fixing portion (8) fixes the upper door (3) to the door frame (2) so that the upper door (3) is fixed in an open position that opens the accommodation space (21).

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