Annular back-off withdrawing mechanism

Abstract

The invention relates to an annular back-off withdrawing mechanism which is characterized in that a first connecting plate can move under the action of a third driving part, and the first connecting plate and a second connecting plate are respectively provided with a first sliding rail and a second sliding rail which can limit the displacement of a third sliding block and a fourth sliding block; a first movable rod of the first driving piece, a second movable rod of the second driving piece and a third movable rod of the third driving piece can respectively drive the first transmission piece, the second transmission piece and the third movable rod to move; the first transmission piece and the second transmission piece are matched with the third transmission piece and the fourth transmission piece through the action of the first driving piece and the second driving piece to enable the third sliding block and the fourth sliding block to move. The first sliding block and the second sliding block can exit from the product through the sliding block bodies, the third sliding block and the fourth sliding block can exit from the product under the action of the transmission part, and the beneficial effects are that the first sliding block and the second sliding block can exit from the product through the sliding block bodies, and the third sliding block and the fourth sliding block exit from the product through the transmission part; and a formed product can be withdrawn.

Description

Technical Field

[0001] The present invention relates to the technical field of die mechanisms, and more particularly to an annular undercut withdrawal mechanism.

Background Art

[0002] As Figure 1 shown in the product 20, due to structural limitations, this product 20 needs to be split into a first structure 30 and a second structure 40 for separate molding. In this way, a joint line 50 will be generated in the middle after the product 20 is assembled, thus affecting the aesthetic appearance and tactile feel of the product 20.

[0003] In view of this, it is necessary to provide an annular undercut withdrawal mechanism to solve the above problems.

Summary of the Invention

[0004] The technical problem to be solved by the present invention is that due to structural limitations, the product needs to be split into a first structure and a second structure for separate molding. In this way, a joint line will be generated in the middle after the product is assembled, thus affecting the aesthetic appearance and tactile feel of the product. Therefore, the present invention provides an annular undercut withdrawal mechanism to solve the above problems.

[0005] The solution of the present invention to solve its technical problems is: an annular undercut withdrawal mechanism, comprising:

[0006] A connecting plate, the connecting plate is provided with a first connecting plate and a second connecting plate. One end of the first connecting plate is fixedly connected to the third movable rod of the third driving member, and it can move under the action of the third driving member. The other end of the first connecting plate is provided with a first slide rail, and the first slide rail can limit the displacement of the third slider. The second connecting plate is fixed in the mold, and one end of the second connecting plate is provided with a second slide rail, and the second slide rail can limit the displacement of the fourth slider;

[0007] Driving members, the driving members are provided with a first driving member, a second driving member and a third driving member. The first driving member and the second driving member can be respectively fixed on the first connecting plate and the second connecting plate. The first driving member and the second driving member are respectively provided with a first movable rod and a second movable rod. The first movable rod can be fixedly connected to the first transmission member, so that the first transmission member moves under the action of the first driving member. The second movable rod can be fixedly connected to the second transmission member, so that the second transmission member moves under the action of the second driving member. The third driving member is provided with a third movable rod, and one end of the third movable rod is fixedly connected to the first connecting plate, so that the first connecting plate moves under the action of the third driving member;

[0008] Transmission parts, the transmission parts are provided with a first transmission part, a second transmission part, a third transmission part and a fourth transmission part. One ends of the first transmission part and the second transmission part are respectively fixed on the first movable rod of the first driving part and the second movable rod of the second driving part. The third transmission part and the fourth transmission part are respectively movably arranged on the first connecting plate and the second connecting plate through a rotating shaft. One side of the first transmission part and the second transmission part can cooperate with the third transmission part and the fourth transmission part to act on one ends of the third slider and the fourth slider respectively, so that the third slider and the fourth slider can move along the first slide rail and the second slide rail respectively to withdraw from the product.

[0009] Sliders, the sliders are provided with a first slider, a second slider, a third slider and a fourth slider. One ends of the first slider and the second slider are shaped to conform to one end of the product. They can withdraw from one side of the product under the drive of the slider body when the mold is opened. The third slider and the fourth slider are respectively movably arranged in the first slide rail and the second slide rail. One side of the third slider and the fourth slider is shaped to conform to the other end of the product, and one end of them can move in the first slide rail and the second slide rail respectively under the action of the transmission parts.

[0010] Preferably, the first slide rail and the second slide rail can be set as annular according to the shapes of the third slider and the fourth slider.

[0011] Preferably, the first driving part, the second driving part and the third driving part can be oil cylinders.

[0012] Preferably, the first transmission part and the second transmission part can be racks.

[0013] Preferably, the third transmission part and the fourth transmission part can be gears.

[0014] Preferably, one ends of the third slider and the fourth slider can be gear-shaped and can move under the action of the transmission parts.

[0015] The beneficial effect of the present invention is that through a circular undercut withdrawal mechanism, when the mold is opened, the first slider and the second slider are driven by the slider insert to move out of the product, and the transmission parts are used to transmit power to make the third slider and the fourth slider rotate and withdraw from the product, so as to realize the withdrawal of the inner side of the product in a circular shape, thereby avoiding splitting the product into two parts for molding and then assembling, which may cause joint lines on the product. This mechanism can improve the appearance beauty of the product and the using feel of the product.

Description of the Drawings

[0016] Figure 1 is a schematic structural diagram of a conventional product.

[0017] Figure 2 is a schematic structural diagram of a circular undercut withdrawal mechanism of the present invention.

[0018] Figure 3 It is a schematic structural diagram of the slider not being withdrawn in an annular reverse buckle withdrawal mechanism of the present invention.

[0019] Figure 4 It is a schematic structural diagram of the first slider and the second slider being withdrawn in an annular reverse buckle withdrawal mechanism of the present invention.

[0020] Figure 5 It is a schematic structural diagram of the third slider being withdrawn in an annular reverse buckle withdrawal mechanism of the present invention.

[0021] Figure 6 It is a schematic structural diagram of the third slider being withdrawn for the second time in an annular reverse buckle withdrawal mechanism of the present invention.

[0022] Figure 7 It is a schematic structural diagram of the fourth slider being withdrawn in an annular reverse buckle withdrawal mechanism of the present invention.

Detailed implementation manners

[0023] To further elaborate on the technical means and effects adopted by the present invention, the following is a detailed description in combination with the embodiments and their accompanying drawings of the present invention.

[0024] The present invention provides an annular reverse buckle withdrawal mechanism, including:

[0025] A connecting plate 110, the connecting plate 110 is provided with a first connecting plate 111 and a second connecting plate 113. One end of the first connecting plate 111 is fixedly connected to the third movable rod 126 of the third driving member 125, and it can move under the action of the third driving member 125. The other end of the first connecting plate 111 is provided with a first slide rail 112, and the first slide rail 112 can limit the displacement of the third slider 143. The second connecting plate 113 is fixed in the mold, and one end of the second connecting plate 113 is provided with a second slide rail 114, and the second slide rail 114 can limit the displacement of the fourth slider 144;

[0026] The driving member 120 is provided with a first driving member 121, a second driving member 123 and a third driving member 125. The first driving member 121 and the second driving member 123 can be respectively fixed on the first connecting plate 111 and the second connecting plate 113. The first driving member 121 and the second driving member 123 are respectively provided with a first movable rod 122 and a second movable rod 124. The first movable rod 122 can be fixedly connected to the first transmission member 131, so that the first transmission member 131 moves under the action of the first driving member 121. The second movable rod 124 can be fixedly connected to the second transmission member 132, so that the second transmission member 132 moves under the action of the second driving member 123. The third driving member 125 is provided with a third movable rod 126. One end of the third movable rod 126 is fixedly connected to the first connecting plate 111, and the first connecting plate 111 can move under the action of the third driving member 125;

[0027] The transmission member 130 is provided with a first transmission member 131, a second transmission member 132, a third transmission member 133 and a fourth transmission member 134. One ends of the first transmission member 131 and the second transmission member 132 are respectively fixed on the first movable rod 122 of the first driving member 121 and the second movable rod 124 of the second driving member 123. The third transmission member 133 and the fourth transmission member 134 are respectively movably arranged on the first connecting plate 111 and the second connecting plate 113 through a rotating shaft 135. One side of the first transmission member 131 and the second transmission member 132 can cooperate with the third transmission member 133 and the fourth transmission member 134 to act on one ends of the third slider 143 and the fourth slider 144 respectively, so that the third slider 143 and the fourth slider 144 can move along the first slide rail 112 and the second slide rail 114 respectively to withdraw from the product 100;

[0028] The slider 140 is provided with a first slider 141, a second slider 142, a third slider 143 and a fourth slider 144. One ends of the first slider 141 and the second slider 142 are shaped to fit one end of the product 100, and they can withdraw from one side of the product 100 under the drive of a slider body (not shown in the figure) when the mold is opened. The third slider 143 and the fourth slider 144 are respectively movably arranged in the first slide rail 112 and the second slide rail 114. One side of the third slider 143 and the fourth slider 144 is shaped to fit the other end of the product 100, and one end of them can move in the first slide rail 112 and the second slide rail 114 respectively under the action of the transmission member 130.

[0029] Wherein, the first slide rail 112 and the second slide rail 114 can be set as annular according to the shapes of the third slider 143 and the fourth slider 144.

[0030] Wherein, the first driving member 121, the second driving member 123 and the third driving member 125 can be oil cylinders.

[0031] Wherein, the first transmission member 131 and the second transmission member 132 may be racks.

[0032] Wherein, the third transmission member 133 and the fourth transmission member 134 may be gears.

[0033] Wherein, one end of the third slider 143 and the fourth slider 144 may be gear-shaped and can move under the action of the transmission member 130.

[0034] The working process of the present invention is as follows: As Figure 2 shown, after the product 100 is molded in the mold, the mold is first opened. As Figure 3 shown, at this time, the first slider 141 and the second slider 142 withdraw from one end of the product 100 under the action of the slider body (not shown in the figure) when the mold is opened. Then as Figure 4 shown, the first driving member 121 acts on the first transmission member 131 through the first live rod 122. In this embodiment, the first driving member 121 can push the first transmission member 131 to move 110 mm through the first live rod 122, so that the first transmission member 131 transmits power to the third slider 143 under the cooperation of the third transmission member 133, and the third slider 143 rotates 92° along the first slide rail 112 and withdraws from the product 100. Again as Figure 5 shown, under the action of the third driving member 125, in this embodiment, the third driving member 125 pulls the first connecting plate 111 to move 30 mm through the third live rod 126, so that the first connecting plate 111 drives the third slider 143 moving in the first slide rail 112 to move, for making way for the fourth slider 144 to withdraw. Finally as Figure 6 shown, under the action of the second driving member 123, in this embodiment, the second driving member 123 pushes the second transmission member 132 to move 110 mm through the second live rod 124, so that the fourth transmission member 134 transmits power to the fourth slider 144 under the cooperation of the second transmission member 132, and the fourth slider 144 rotates 92° along the second slide rail 114 and withdraws from the product 100, and then the first slider 141, the second slider 142, the third slider 143 and the fourth slider 144 can withdraw from the molding position of the product 100.

[0035] The beneficial effects of the present invention are as follows. Through an annular reverse buckle withdrawal mechanism, when the mold is opened, the first slider 141 and the second slider 142 are driven by a slider insert (not shown in the figure) to move out of the product 100, and the transmission member 130 is used to transmit power to rotate the third slider 143 and the fourth slider 144 to move out of the product 100, so as to realize the withdrawal of the inner side of the product 100 in an annular shape. Furthermore, it can avoid splitting the product 100 into two products for molding and then assembling, which may cause a joint line 50 on the product 100. This mechanism can improve the aesthetic appearance of the product 100 and the tactile feel of the product 100.

Claims

1. A circular inverted buckle withdrawal mechanism, characterized in that, Comprising: A connecting plate, the connecting plate is provided with a first connecting plate and a second connecting plate. One end of the first connecting plate is fixedly connected to the third movable rod of the third driving member, and it can move under the action of the third driving member. The other end of the first connecting plate is provided with a first slide rail, and the first slide rail can limit the displacement of the third slider. The second connecting plate is fixed inside the mold, and one end of the second connecting plate is provided with a second slide rail, and the second slide rail can limit the displacement of the fourth slider; Driving members, the driving members are provided with a first driving member, a second driving member and a third driving member. The first driving member and the second driving member can be respectively fixed on the first connecting plate and the second connecting plate. The first driving member and the second driving member are respectively provided with a first movable rod and a second movable rod. The first movable rod can be fixedly connected to the first transmission member to make the first transmission member move under the action of the first driving member. The second movable rod can be fixedly connected to the second transmission member to make the second transmission member move under the action of the second driving member. The third driving member is provided with a third movable rod, and one end of the third movable rod is fixedly connected to the first connecting plate, and it can make the first connecting plate move under the action of the third driving member; Transmission members, the transmission members are provided with a first transmission member, a second transmission member, a third transmission member and a fourth transmission member. One ends of the first transmission member and the second transmission member are respectively fixed on the first movable rod of the first driving member and the second movable rod of the second driving member. The third transmission member and the fourth transmission member are respectively movably arranged on the first connecting plate and the second connecting plate through a rotating shaft. One side of the first transmission member and the second transmission member can cooperate with the third transmission member and the fourth transmission member to respectively act on one ends of the third slider and the fourth slider, and can make the third slider and the fourth slider respectively move along the first slide rail and the second slide rail to withdraw from the product; Sliders, the sliders are provided with a first slider, a second slider, a third slider and a fourth slider. One ends of the first slider and the second slider are shaped to fit one end of the product, and they can withdraw from one side of the product under the drive of the slider body when the mold is opened. The third slider and the fourth slider are respectively movably arranged in the first slide rail and the second slide rail. One side of the third slider and the fourth slider is shaped to fit the other end of the product, and one end of them can respectively move in the first slide rail and the second slide rail under the action of the transmission member.

2. The circular inverted buckle withdrawal mechanism according to claim 1, characterized in that: The first slide rail and the second slide rail can be set as annular according to the shapes of the third slider and the fourth slider.

3. The circular inverted buckle withdrawal mechanism according to claim 1, characterized in that: The first driving member, the second driving member and the third driving member can be oil cylinders.

4. The circular inverted buckle withdrawal mechanism according to claim 1, characterized in that: The first transmission member and the second transmission member can be racks.

5. The circular inverted buckle withdrawal mechanism according to claim 1, characterized in that: The third transmission member and the fourth transmission member can be gears.

6. The circular inverted buckle withdrawal mechanism according to claim 1, characterized in that: One ends of the third slider and the fourth slider can be gear-shaped, and they can move under the action of the transmission member.

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