Tail plate roller mechanism of injection molding machine and connecting structure of tail plate roller mechanism and tail plate

Abstract

The utility model discloses an injection molding machine tail plate roller mechanism and a connecting structure of the injection molding machine tail plate roller mechanism and a tail plate, the injection molding machine tail plate roller mechanism comprises a roller frame and a roller assembly, at least one accommodating cavity is formed on the roller frame, the roller assembly is arranged in the accommodating cavity, the roller assembly is connected with the roller frame, the roller assembly can rotate, and the roller frame is connected with the roller assembly. The accommodating cavity forms a lower opening in the bottom surface of the roller frame, the bottom of the roller assembly protrudes out of the lower opening, and the injection molding machine tail plate roller mechanism is fixedly connected to the left side and the right side of the bottom of the tail plate. According to the utility model, the roller mechanism for the tail plate of the injection molding machine is arranged at the bottom of the tail plate, and the roller assembly rolls on the rack when a mold closing mechanism works, so that the tail plate can be prevented from being blocked in the moving process, and the normal work of the mold closing mechanism is ensured.

Description

Technical Field

[0001] The utility model relates to the field of injection molds, in particular to a tail plate roller mechanism of an injection molding machine and a connection structure thereof with a tail plate. Background Art

[0002] The 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. During the opening and closing process of the mold clamping mechanism of the injection molding machine, its tail plate slides on the frame along the opening and closing direction of the mold clamping mechanism.

[0003] The applicant in this case has previously applied for an injection molding machine capable of increasing injection speed (patent number: 202221173282.1). Figure 2 The tail plate is connected to the frame by a sliding rail. Since the tail plate of this type of injection molding machine is heavy, the sliding between the tail plate of the injection molding machine and the sliding rail on the frame is not smooth. After long-term use, the sliding rail is easily deformed, which causes the tail plate to be blocked during the sliding process, and the clamping mechanism is blocked during the opening and closing process, affecting the quality of the injection molded product. Therefore, how to solve the sliding problem of the tail plate of the injection molding machine is an urgent problem to be solved. Utility Model Content

[0004] In order to make up for the deficiencies of the prior art, the utility model proposes a tail plate roller mechanism for an injection molding machine and a connection structure with the tail plate, which facilitates the sliding of the tail plate of the injection molding machine on the frame and solves the problem of obstruction during the sliding process of the tail plate of the injection molding machine.

[0005] The technical solution adopted by the utility model to solve its technical problems is: a tail plate roller mechanism of an injection molding machine, including a roller frame and a roller assembly, at least one accommodating cavity is formed on the roller frame, the roller assembly is placed in the accommodating cavity, and the roller assembly is connected to the roller frame, the roller assembly can rotate, the accommodating cavity forms a lower opening on the bottom surface of the roller frame, and the bottom of the roller assembly protrudes from the lower opening.

[0006] Furthermore, in the above-mentioned tail plate roller mechanism of an injection molding machine, the number of the accommodating cavities is 2 to 4, the number of the roller assemblies is also 2 to 4, and each roller assembly is placed in each accommodating cavity.

[0007] Furthermore, the above-mentioned tailgate roller mechanism of an injection molding machine, wherein the roller assembly includes a roller shell, a roller shaft and a bearing, the left and right side walls of the roller frame are provided with through holes, the roller shaft is located in the accommodating cavity, and the two ends of the roller shaft are respectively connected to the through holes of the left and right side walls of the roller frame, the roller shell is a hollow cylindrical structure, the inner ring of the bearing is sleeved on the roller frame, and the bearing is located in the accommodating cavity, and the inner wall of the roller shell is sleeved on the outer circumferential surface of the outer ring of the bearing.

[0008] Furthermore, in the above-mentioned tailgate roller mechanism of an injection molding machine, two bearings are provided, both bearings are located in the roller shell, and the two bearings are respectively located at the openings on both sides of the roller shell.

[0009] Furthermore, in the above-mentioned tail plate roller mechanism of an injection molding machine, roller end covers are provided at the openings on both sides of the roller shell, the roller end covers are ring-shaped, the roller end covers are sleeved on the roller shaft and the roller end covers are fixedly connected to the end faces on both sides of the roller shell.

[0010] Furthermore, in the above-mentioned tail plate roller mechanism of an injection molding machine, the left and right side walls of the roller frame are both provided with shaft end blind covers, and each shaft end blind cover corresponds to the position of each through hole, and the shaft end blind cover covers the outside of the through hole.

[0011] Furthermore, in the above-mentioned tail plate roller mechanism of an injection molding machine, at least one flat key is provided on the upper surface of the roller frame.

[0012] The utility model also discloses a connection structure between a tail plate roller mechanism of an injection molding machine and a tail plate, wherein two tail plate roller mechanisms of the injection molding machine are provided, the two tail plate roller mechanisms of the injection molding machine are both fixedly connected to the bottom of the tail plate, and the two tail plate roller mechanisms of the injection molding machine are respectively located on the left and right sides of the bottom of the tail plate.

[0013] Furthermore, in the above-mentioned connection structure between the tail plate roller mechanism and the tail plate of an injection molding machine, at least one flat key is provided on the upper surface of the roller frame, and mounting grooves are provided on the left and right sides of the bottom of the tail plate, the flat key corresponds to the position of the mounting groove, and the flat key is fixedly connected to the mounting groove.

[0014] The utility model is beneficial in that: the utility model arranges the tail plate roller mechanism of the injection molding machine at the bottom of the tail plate, and when the mold clamping mechanism is working, the bottom of the roller assembly of the tail plate roller mechanism of the injection molding machine is placed on the frame, and when the tail plate is moving forward or backward, the roller assembly of the tail plate roller mechanism of the injection molding machine rolls on the frame, thereby preventing the tail plate from being blocked during the movement, and ensuring the normal operation of the mold clamping mechanism. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 This is a schematic diagram of the overall structure of the tail plate roller mechanism of the injection molding machine of the utility model;

[0016] Figure 2 It is a schematic diagram of the structure of the roller assembly;

[0017] Figure 3 for Figure 2 Exploded image;

[0018] Figure 4 It is a schematic diagram of the roller frame structure;

[0019] Figure 5 It is a schematic diagram of the connection structure between the tail plate roller mechanism and the tail plate of the injection molding machine.

[0020] In the figure: 1. roller mechanism of tail plate of injection molding machine; 11. roller frame; 111. through hole; 112. lower opening; 113. upper opening; 12. accommodating cavity; 13. roller assembly; 131. roller shell; 132. roller shaft; 133. bearing; 134. roller end cover; 135. shaft end cover; 14. flat key; 2. tail plate. DETAILED DESCRIPTION

[0021] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0022] In addition, when an element in the present invention is referred to as being "fixed to" or "disposed on" another element, it may be directly on the other element or there may be a central element. When an element is considered to be "connected to" another element, it may be directly connected to the other element or there may be a central element at the same time. The terms "vertical", "horizontal", "left", "right" and similar expressions used herein are for illustrative purposes only and are not intended to be the only implementation method.

[0023] See also Figures 1 to 4 As shown, the utility model provides a tailgate roller mechanism 1 of an injection molding machine, comprising a roller frame 11 and a roller assembly 13, wherein at least one accommodating cavity 12 is formed on the roller frame 11, the roller assembly 13 is disposed in the accommodating cavity 12, and the roller assembly 13 is connected to the roller frame 11, the roller assembly 13 can rotate, the accommodating cavity 12 forms a lower opening 112 on the bottom surface of the roller frame 11, and the bottom of the roller assembly 13 protrudes from the lower opening 112.

[0024] Preferably, there are 2 to 4 accommodating cavities 12 , and correspondingly, there are also 2 to 4 roller assemblies 13 , each of which is placed in each of the accommodating cavities 12 . Example 1

[0025] like Figures 2 to 4As shown, the roller assembly 13 includes a roller shell 131, a roller shaft 132, a bearing 133, a roller end cover 134, and a shaft end cover 135. The left and right side walls of the roller frame 11 are provided with through holes 111. The roller shaft 132 is located in the accommodating cavity 12, and the two ends of the roller shaft 132 are respectively connected to the through holes 111 on the left and right side walls of the roller frame 11. The inner ring of the bearing 133 is sleeved on the roller frame, and the bearing 133 is located in the accommodating cavity 12. The roller shell 131 is a hollow cylindrical structure, and the inner wall of the roller shell 131 is sleeved on the outer circumference of the outer ring of the bearing 133.

[0026] Preferably, two bearings 133 are provided, both bearings 133 are located in the roller shell 131, and the two bearings 133 are located at the openings on both sides of the roller shell 11. Figure 2 As shown, roller end covers 134 are provided at the openings on both sides of the roller shell 131 . The roller end covers 134 are ring-shaped, are sleeved on the roller shaft 132 , and are fixedly connected to the end surfaces on both sides of the roller shell 131 .

[0027] like Figures 1 to 4 As shown, both ends of the roller shaft 132 are connected to the through holes 111 on the left and right side walls of the roller frame 11. The left and right side walls of the roller frame 11 are both provided with shaft end covers 135, and each shaft end cover 135 corresponds to the position of each through hole 111, and the shaft end cover 135 covers the outside of the through hole 111. Example 2

[0028] like Figure 1 As shown, each of the accommodating cavities 12 forms an upper opening 113 on the upper surface of the roller frame 11. In order to facilitate the assembly of the roller assembly, during assembly, the bearing 133, the roller shell 131 and the roller end cover 134 are assembled in advance to form a roller as a whole, and then the roller as a whole is placed into the accommodating cavity 12 from the lower opening 112 or the upper opening 112, and then the roller shaft 132 is inserted from the through hole 111 on one side, through the roller as a whole, until the roller shaft 132 is inserted into the through hole 111 on the other side, and then the shaft end cover 135 is installed at each through hole 111. At least one flat key 14 is provided on the upper surface of the roller frame 11, and the injection molding machine tail plate roller mechanism 1 is fixedly connected to the tail plate 2 through the flat key 14. Example 3

[0029] like Figure 5As shown, the injection molding machine tail plate roller mechanism 1 is provided with two, the two injection molding machine tail plate roller mechanisms 1 are both fixedly connected to the bottom of the tail plate 2, and the two injection molding machine tail plate roller mechanisms 1 are respectively located on the left and right sides of the bottom of the tail plate. Specifically, groove bodies are formed on the left and right edges of the bottom of the tail plate 2, and the two injection molding machine tail plate roller mechanisms 1 are respectively fixedly connected to the two groove bodies, and a plurality of flat keys 14 are provided on the upper surface of the roller frame 11. The groove bodies on the left and right sides of the bottom of the tail plate 2 are both provided with mounting grooves, and the flat keys 14 correspond to the positions of the mounting grooves, and the flat keys 14 are fixedly connected to the mounting grooves.

[0030] It can be seen from the above description that by arranging the injection molding machine tail plate roller mechanism 1 at the bottom of the tail plate 2, when the clamping mechanism is working, the bottom of the roller assembly 13 of the injection molding machine tail plate roller mechanism 1 is placed on the frame, and the tail plate 2 is guided by the pull rod of the clamping mechanism to move forward or backward. In the process of the tail plate 2 moving forward or backward, the roller assembly of the injection molding machine tail plate roller mechanism 1 rolls on the frame 1, thereby avoiding the tail plate 2 from being obstructed during the movement, and ensuring the normal operation of the clamping mechanism.

[0031] The above shows and describes the basic principle, main features and advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above embodiments, and the above embodiments and descriptions are only for explaining the principle of the utility model. Without departing from the spirit and scope of the utility model, the utility model may have various changes and improvements, and these changes and improvements fall within the scope of the utility model to be protected.

Claims

1. A tail plate roller mechanism for an injection molding machine, characterized in that: It includes a roller frame and a roller assembly, wherein at least one accommodating cavity is formed on the roller frame, the roller assembly is placed in the accommodating cavity, and the roller assembly is connected to the roller frame. The roller assembly can rotate, and the accommodating cavity forms a lower opening on the bottom surface of the roller frame, and the bottom of the roller assembly protrudes from the lower opening.

2. The tail plate roller mechanism of an injection molding machine according to claim 1, characterized in that: The number of the accommodating cavities is 2 to 4, the number of the roller assemblies is also 2 to 4, and each roller assembly is placed in each accommodating cavity.

3. The tail plate roller mechanism of an injection molding machine according to claim 1, characterized in that: The roller assembly includes a roller shell, a roller shaft and a bearing. The left and right side walls of the roller frame are provided with through holes. The roller shaft is located in the accommodating cavity, and the two ends of the roller shaft are respectively connected to the through holes on the left and right side walls of the roller frame. The roller shell is a hollow cylindrical structure. The inner ring of the bearing is sleeved on the roller frame, and the bearing is located in the accommodating cavity. The inner wall of the roller shell is sleeved on the outer circumferential surface of the outer ring of the bearing.

4. The tail plate roller mechanism of an injection molding machine according to claim 3, characterized in that: There are two bearings, both of which are located in the roller shell, and the two bearings are respectively located at openings on both sides of the roller shell.

5. The tail plate roller mechanism of an injection molding machine according to claim 3, characterized in that: Roller end covers are provided at the openings on both sides of the roller shell. The roller end covers are ring-shaped, sleeved on the roller shaft, and fixedly connected to the end surfaces on both sides of the roller shell.

6. The tail plate roller mechanism of an injection molding machine according to claim 3, characterized in that: The left and right side walls of the roller frame are both provided with shaft end blind covers, and each shaft end blind cover corresponds to the position of each through hole, and the shaft end blind cover covers the outside of the through hole.

7. The tail plate roller mechanism of an injection molding machine according to claim 1, characterized in that: At least one flat key is disposed on the upper surface of the roller frame.

8. A connection structure between a tail plate roller mechanism and a tail plate of an injection molding machine, characterized in that: It comprises the tail plate roller mechanism of the injection molding machine according to any one of claims 1 to 6, wherein two tail plate roller mechanisms of the injection molding machine are provided, the two tail plate roller mechanisms of the injection molding machine are fixedly connected to the bottom of the tail plate, and the two tail plate roller mechanisms of the injection molding machine are respectively located on the left and right sides of the bottom of the tail plate.

9. The connection structure between the tail plate roller mechanism and the tail plate of an injection molding machine according to claim 8, characterized in that: Grooves are formed on the left and right edges of the bottom of the tail plate, and two tail plate roller mechanisms of the injection molding machine are fixedly connected to the two grooves respectively. At least one flat key is provided on the upper surface of the roller frame. Installation grooves are provided in the grooves on the left and right sides of the bottom of the tail plate. The flat keys correspond to the positions of the installation grooves, and the flat keys are fixedly connected to the installation grooves.

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